Entries |
Document | Title | Date |
20080215262 | POLYPHASE ELECTRIC ENERGY METER - A polyphase electric energy meter comprises a microcontroller with a front end that converts analog current input signals and analog voltage input signals to digital current and voltage samples for processing by the microcontroller. The front end includes separate input channels, each for one of the current input signals with a sigma-delta modulator followed by a decimation filter. The front end further includes a common input channel for all voltage input signals with a multiplexer, an analog-to-digital converter and a de-multiplexer. The separate input channels and the common input channel provide the digital current and voltage samples for processing by the microcontroller. | 09-04-2008 |
20080234955 | Uniform Power Density Across Processor Cores at Burn-In - A computer implemented method, data processing system, and computer usable code are provided for burn-in testing of a multiprocessor. A process identifies a power management data set for a plurality of processor cores associated with the multiprocessor. The process selects one or more of the plurality of processor cores to form a selected set of processor cores based upon the power management data set. The process initiates a burn-in test across the selected set of processor cores. In response to a determination that all processor cores in the plurality of processor cores have not been selected, the process repeats the above selecting and initiating steps until all the processor cores have been selected. | 09-25-2008 |
20080243404 | Averaging in an Intelligent Electronic Device - A method and apparatus measures electrical power usage and quality, while mitigating the effects of noise on measured signals or parameters. Specifically, a digital electrical power and energy meter employs a method in which a processor averages a parameter, such as voltage or current, over a plurality of cycles of a time-varying signal, such as an AC electrical signal. The method employed by the meter samples a parameter over the plurality of cycles and computes the average of the samples corresponding to the same phase angle of the signal to produce an average signal. | 10-02-2008 |
20080288193 | Techniques for Analyzing Data Center Energy Utilization Practices - Techniques for improving on data center best practices are provided. In one aspect, an exemplary methodology for analyzing energy efficiency of a data center having a raised-floor cooling system with at least one air conditioning unit is provided. The method comprises the following steps. An initial assessment is made of the energy efficiency of the data center based on one or more power consumption parameters of the data center. Physical parameter data obtained from one or more positions in the data center are compiled into one or more metrics, if the initial assessment indicates that the data center is energy inefficient. Recommendations are made to increase the energy efficiency of the data center based on one or more of the metrics. | 11-20-2008 |
20080300806 | Power consumption calculating method - A power consumption calculating method comprises: generating operation information; obtaining functional block power consumption; and obtaining entire power consumption of an integrated circuit. The operation information indicates operation of a functional block. The operation information is generated based on a low-level circuit model by configuring the low-level circuit model from a behavioral-level circuit model describing the integrated circuit at a behavioral level. The behavioral-level circuit model has at least one functional block including the functional block. The low-level circuit model describes the integrated circuit at lower degree of abstraction than the behavioral level. The functional block power consumption is obtained as power consumption of the functional block based on the operation information and element power consumption as power consumption of element group constituting the functional block. The entire power consumption is obtained based on the functional block power consumption and number of times the functional block is executed in operation of the integrated circuit. | 12-04-2008 |
20080306699 | Method For Measuring the Power Consumption Time of a Cdma Mobile Terminal - The present invention relates to a method for measuring the power consumption time of a CDMA mobile terminal, and the method comprises the steps of wire-connecting a terminal to be measured with a CDMA network simulator; measuring the standby power consumption time of said terminal to be measured in standby mode, and calculating a normalized power consumption time length | 12-11-2008 |
20090012728 | System and Method for Multi-Rate Concurrent Waveform Capture and Storage for Power Quality Metering - Systems and methods are provided for use in an IED that perform high resolution waveform capture to generate multi-rate waveform data in real-time. In one embodiment, high-resolution sampled data is dynamically pre-ordered into separate high resolution and low resolution data streams for presentation and storage. This pre-ordering of data is optimized so as to minimize the amount of data manipulation required to prepare the sampled data for eventual presentation and storage in the IED. Pre-ordering of data facilitates minimum performance impact so that continuous real-time data capture can be achieved. | 01-08-2009 |
20090157333 | METHOD AND SYSTEM FOR AUTOMATED ENERGY USAGE MONITORING WITHIN A DATA CENTER - An automated method and system are provided for facilitating monitoring of energy usage within a data center. The method includes automatically determining energy usage of one or more electronics racks of a data center by automatically ascertaining time-based energy usage of the electronics racks. The automatically ascertaining includes obtaining multiple measurements of instantaneous energy usage by each of the electronics racks in the data center over a period of time, and then separately averaging the multiple measurements for each electronics rack to obtain the time-based energy usage of each electronics racks. The method also includes outputting the time-based energy usage of the electronic(s) racks to facilitate monitoring of the data center. | 06-18-2009 |
20090157334 | MEASUREMENT OF POWER CONSUMPTION WITHIN AN INTEGRATED CIRCUIT - An apparatus and method for measuring power consumed during operation of an integrated circuit. The apparatus including: a data processing circuit having an input and an output, the data processing circuit configured to generate an output data signal on based on an input data signal; a power measurement circuit configured to measure an amount of electrical power consumed by the processing circuit in generating the output signal from the input signal, the power measurement circuit connected between the processing circuit and a power supply for the processing circuit; and a memory element configured to store a tag containing a value representing the amount of electrical power consumed by the processing circuit in generating the output data signal from the input data signal and either (a) the input data of the input data signal or (b) a pointer to the input data of the input data signal. | 06-18-2009 |
20090177421 | ELECTRIC ENERGY METER - An electric energy meter comprises a terminal unit and a measurement unit. The terminal unit includes plural electric lines each of which carries an electric current supplied from an external power source to a load, and a coil which is provided to at least one of the plural electric lines and converts the electric current flowing to the load into a magnetic field directly proportional to the electric current. The measurement unit includes a hall element which generates a voltage directly proportional to the magnetic field converted by the coil, a voltage detector which detects voltages of the plural electric lines, and a processing unit which calculates electric energy consumption based on the voltage generated by the hall element and the voltages detected by the voltage detector. The electric energy meter can facilitate the replacement. | 07-09-2009 |
20090216469 | SYSTEM FOR MULTIDIMENSIONAL DATA-DRIVEN UTILITY BASELINING - A system for utility base lining records historic values of utility loads for regions within a facility. The system also records historic values of independent variables such as outside temperature, time, date, workday versus non-workday, and occupancy. A similar data selector seeks out similar times in the past and submits the data from those times to a base line estimator which produces a baseline estimate. Differences between the current load and the estimated load can trigger alarms or investigations to determine why the utility load has changed. False alarms can occur when the utility load drifts over time. Detecting drift can help reduce false alarms or help in the investigation of alarms. A graphical user interface (GUI) can present an easily understood representation of the regions, load estimation errors, alarms, and detected drift. | 08-27-2009 |
20090248330 | WATT-HOUR METER - In a watt-hour meter, encoders | 10-01-2009 |
20090281743 | MANAGING ENERGY USAGE BY DEVICES ASSOCIATED WITH A VIRTUAL UNIVERSE RESOURCE CONSERVATION - A virtual universe can include regions that conserve natural resource usage. A virtual universe natural resource conservation system can determine a measure of comprehensive energy usage of a plurality of devices associated with a controlled energy use region in a virtual universe. The system can determine that the measure of comprehensive energy usage approaches a usage threshold for the controlled energy use region. The system can also impose one or more conservation limitations on at least one of the plurality of devices to maintain the comprehensive energy usage within the usage threshold. | 11-12-2009 |
20100036624 | STRESS CONDITION LOGGING IN UTILITY METER - An arrangement includes a utility meter housing that contains or supports a first sensor, a second sensor, and a processing circuit. The first sensor is configured to measure a first parameter, the first parameter relating to an environmental condition within the meter housing. The second sensor is configured to measure a second parameter. The processing circuit is operably connected to the first sensor and to the second sensor, and is configured to record information relating to one or more events, each event corresponding to a detection of an out of range condition by each of the first sensor and the second sensor. | 02-11-2010 |
20100049456 | Electrical Power Metering Device and Method of Operation Thereof - A metering device for metering energy delivered to customers over electrical wires from a power distribution cabinet. The metering device has a plurality of current transformers, each capable of receiving one of the electrical wires and connections for the line voltages which drive the wires. The current transformers are arranged for physical correspondence to the power outputs of the power distribution cabinet. Circuitry connected to the current transformers and line voltage connections meter the energy over the electrical wires. | 02-25-2010 |
20100070214 | System and method for identifying appliances by electrical characteristics - Illustrative embodiments provide systems, applications, apparatuses, computer software program products, and methods related to identification of electrical appliances by electrical characteristics. | 03-18-2010 |
20100070215 | System and method for identifying appliances by electrical characteristics - Illustrative embodiments provide systems, applications, apparatuses, computer software program products, and methods related to identification of electrical appliances by electrical characteristics. | 03-18-2010 |
20100070216 | POWER CONSUMPTION CALCULATION APPARATUS, POWER CONSUMPTION CALCULATION METHOD, AND STATE TRANSITION DATA GENERATION METHOD - A power consumption calculation apparatus is disclosed, including: a work load measurement part, a management part, and a power consumption calculation part. The work load measurement part measures a work load of a job executed by an image forming apparatus and records a measured value, at predetermined time intervals. The management part manages state transition data indicating power consumption and a required time for each of states of the image forming apparatus which transits in response to an execution of each job. The power consumption calculation part calculates a power consumption amount corresponding to one job execution at each predetermined time interval when it is determined that the job is executed, based on the measured value and the state transition data. | 03-18-2010 |
20100094573 | Short-Term Load Forecasting Based Capacity Check for Automated Power Restoration of Electric Distribution Networks - A method of forecasting loads on a distribution network is disclosed. The method employs load profiles in combination with short-term load estimations to forecast expected loads on a distribution network. The predicted loads may then be used by power restoration controllers when performing back-feed capacity checks. | 04-15-2010 |
20100100340 | Multi-Path Power Meter with Amplifier - A power meter comprises at least two measurement paths and distribution device. A first measurement path contains at least one pre-amplifier and a first detector. A second measurement path contains at least one direct connection and a second detector. An additional third path alternative to or optional to the second path contains at least one attenuation element and a second or respectively third detector. The distribution device distributes a test signal to the measurement paths. | 04-22-2010 |
20100106436 | POWER CONSUMPTION CALCULATION FACILITY - Embodiments of the invention include an apparatus for calculating an index value indicating power consumption, processing cost, or environmental load in a system having hardware components used by multiple processes or users. The apparatus may include an index acquisition part for acquiring an index value of a hardware component. The index value may indicate power consumption of the hardware component. The apparatus may further include an observation value acquisition part for acquiring one or more observation values for multiple processes. The observation value for each process may vary depending on use of the hardware component by the process. Finally, a calculation part may calculate, based on the observation value, a use amount of the hardware component by each process. The calculation part may further calculate the index value for a process using the hardware component by distributing the index value according to the use amount. | 04-29-2010 |
20100145642 | System and Method for Compensating for Potential and Current Transformers in Energy Meters - A meter device for measuring electrical energy is provided. The meter device includes circuitry for measuring at least one parameter of electrical energy provided to the meter device. A storage device is provided for storing at least one calibration factor for compensating for errors associated with at least one of at least one external current transformer (CT) and at least one external potential transformer (PT) that operates on the electrical energy provided to the meter device. At least one processor is provided for processing the at least one calibration factor for adjusting the measuring for compensating for the errors when measuring the at least one parameter of electrical energy. | 06-10-2010 |
20100169032 | WIRELESS SENSOR NETWORK SYSTEMS, METHOD FOR PLACING A PLURALITY OF SENSOR NODES IN WIRELESS SENSOR NETWORK SYSTEM, AND METHODS FOR COMPUTING SENSING ENERGY CONSUMPTION PER AREA OF A PLURALITY OF SENSOR NODES - A wireless sensor network system, a method for placing a plurality of sensor nodes in a wireless sensor network, and a method for computing sensing energy consumption per area of a plurality of sensor node are disclosed. The wireless sensor network system includes a plurality of sensor nodes which are deployed at the same distance in a two-dimensional plane and have sensing areas of the same size, and an extra sensor node which has a sensing area of a smaller size than the size of the sensor nodes to sense a gap area which is not covered by the sensing areas of the sensor nodes. | 07-01-2010 |
20100179776 | UTILITY MONITORING SYSTEM WITH VARIABLE LOGGING - A method of storing data in a utility monitoring system includes monitoring a characteristic of a utility system in an intelligent electronic device (IED) to produce monitored characteristic values that are buffered in the IED. The IED is communicatively coupled to a server via a network. The monitored characteristic values are indicative of the characteristic. The method further includes storing a first monitored characteristic value of the buffered monitored characteristic values periodically at a first logging interval in a memory of the IED. The method further includes storing a second monitored characteristic value of the buffered monitored characteristic values periodically at a second logging interval in the memory of the IED in response to satisfying a criterion. The second logging interval is distinct from the first logging interval. | 07-15-2010 |
20100191488 | Computer Application for the Gathering and Interpretation of Data from Interval "Smart" Meters - A software tool for energy management consisting of a means for inputting data on a specified structure, inputting data on energy usage, and matching that information to calculated kilowatt usage for specific devices in the monitored system. | 07-29-2010 |
20100250160 | SYSTEM AND METHOD FOR GATHERING INFORMATION USING A POWER DEVICE - A power device, such as a UPS, and a method for gathering system information using the power device are provided. In one aspect, a UPS receives system information associated with at least one other device, the system information including configuration management information, stores, in data storage, the system information associated with the at least one other device and provides the system information to an external entity. | 09-30-2010 |
20100305888 | Method and Device for Determining Load Flow in an Electrical Power Supply System - A method allows determining load flow in a symmetrical electrical supply grid, particularly a symmetrical electrical distribution grid having asymmetrical loads. The load flow is typically solved within an electrical supply grid by means of an extensive matrix system. The determination of power, voltage, and current at certain node points in the electrical supply grid leads to a large matrix to be solved, which previously had to be solved in whole using algebraic means. By converting the matrix to symmetrical space vector components that can be used to monitor the phase progression of the space vector components, it becomes possible to divide the entire matrix into partial matrices and thus to be able to calculate the partial matrices faster and in parallel using a computer system. | 12-02-2010 |
20100324844 | METHOD AND SYSTEM FOR PROTECTING AN ELECTRICAL POWER TRANSMISSION NETWORK - A method and system for protecting an electrical power transmission network comprising the steps of: measuring a voltage and a current at a first location in the network other than at a generator in the network; determining positive and negative sequence voltages and currents based on the measured voltage and measured current; determining a negative sequence Thévenin impedance based on the negative sequence measured voltage and negative sequence measured current; defining a positive sequence Thévenin impedance as equal to the negative sequence Thévenin impedance; determining a Thévenin voltage based on the positive sequence measured voltage, positive sequence measured current and the positive sequence Thévenin impedance; determining a load impedance based on the positive sequence measured voltage and positive sequence measured current; and determining the stability of the network using the load impedance and one or more of the Thévenin voltage and positive sequence Thévenin impedance. | 12-23-2010 |
20110004426 | SYSTEM AND METHOD FOR ENERGY MONITORING AND MANAGEMENT USING A BACKPLANE - An energy monitoring and management system and method are provided herein. The system and method centralize load metering by utilizing at least one sensor for observing load characteristics (e.g., Volts, Amperes, Watts, active energy . . . ) communicatively coupled via a backplane to a waveform analyzer component of a control component. The waveform analyzer component generates metered data values after receiving input from the at least one sensor. Subsequently and if so desired, the control component can send a control signal to the load to alter the state of the load or simply reduce the power to a load. Such input, output, and processing functionality, according to an aspect of the present invention, are employed using a backplane to facilitate high-speed communication among components and to allow metered data to be centrally stored, manipulated, analyzed or communicated to other components or sub-components. | 01-06-2011 |
20110010119 | Apparatus for monitoring the maintenance of systems in a nuclear power plant - An apparatus is disclosed for monitoring the maintenance of a plant that is equipped with various systems. The apparatus includes a screening module, a classifying module, a performance criteria-setting module, an availability data module, a reliability data module, a real-time monitoring module, a performance-assessing module and a special monitoring module. | 01-13-2011 |
20110066391 | METHODS AND SYSTEMS FOR ENERGY PROGNOSIS - In one embodiment, a method for managing an industrial process wherein a processor transforms electronic data into an energy prognosis is provided. An energy related test signal including effective power test data indicative of electrical energy consumed by an energy consuming machine may be received. The energy related test signal may be partitioned into an energy related test sub-signal. Mathematical functions may be applied to the energy related test sub-signal to extract a feature set of data from the energy related test sub-signal. The feature set of data may be transformed with a transformation matrix into a reduced test feature set. The reduced test feature set may be input into a performance assessment algorithm based at least in part upon a reduced training feature set derived from data indicative of electrical energy consumed during healthy operation. A power-based performance index may be generated with the performance assessment algorithm. | 03-17-2011 |
20110071779 | ELECTRONIC DEVICE CONTROLLER FOR IMPROVING PERFORMANCE OF ELECTRONIC DEVICE - An electronic device controller and an electronic system including the same are provided. The electronic device controller includes a calculation unit for calculating performance information of an electronic device based on detailed information regarding an operation and state of the electronic device and a tuning unit for tuning at least one of the detailed information, based on the calculated performance information of the electronic device. | 03-24-2011 |
20110098952 | HIGH DENSITY METERING SYSTEM - A method of monitoring the electrical power in multiple branch circuits of an AC electrical power distribution system comprises monitoring at least one voltage common to said multiple branch circuits using a main meter unit, monitoring currents of the multiple branch circuits using multiple current cards that receive a plurality of current inputs from current transducers in the multiple branch circuits, sampling the monitored voltage in the main meter unit and the monitored currents in the current cards multiple times in each cycle of the AC power signal, determining the magnitudes and angles of spectral components of the sampled current in the current cards, sending data representing the magnitudes and angles of at least selected spectral components from the current cards to the main meter unit, and storing the voltage samples and the magnitudes and angles of at least the selected spectral components in the main meter unit. | 04-28-2011 |
20110119002 | METHOD AND SYSTEM FOR ESTIMATING USE TIME OF ELECTRIC APPLIANCES - A method and a system for estimating use time of electric appliances are provided. In the present method, all time points corresponding to an appliance power on event or an appliance power off event are obtained according to a value-time curve of at least one electric characteristic. A characteristic value of each of the time points is calculated according to the value-time curve, so as to pair the time points corresponding to the appliance power off event with the time points corresponding to the appliance power on event appropriately. After the pairing process is accomplished, the use time of each of the electric appliances can be calculated by the paired time points and thereby the power consumption of the electric appliances can be figured out. | 05-19-2011 |
20110144932 | Power Monitoring and Analysis System for Identifying and Tracking Individual Electrical Devices - The invention is a method for measuring and processing a plurality of electrical parameters of a common alternating current (AC) service that supplies multiple different electrical devices such that the power use rate and total power used by each of multiple devices is determined. Sensors provide high resolution signals corresponding to the current and voltage of the AC power supplied to the service panel typical of those used in residential construction. Analog-to-digital conversion and processing circuits determine multiple electrical parameters with high resolution at a sampling rate sufficient to determine the electrical parameters for approximately each AC cycle. The electrical parameters are stored as a large data set in a memory with sufficient capacity to store several months of electrical parameters representing each AC cycle. The data set is processed to extract complete on-off cycles of the devices. The on-off cycles are represented by instance structures. The characteristics of the instance structures are used to determine device structures. Each device structure characterizes one of the multiple devices. The contributions associated with the extracted instance structures are subtracted from the data set, making is possible to extract additional instance structures from the residual information in the data set. Information from the device structures are used to help extract instances structures that are partially obscured by overlapping instance structures. The newly extracted instances structures are subtracted from the data set and processing continues until no more instance structures can be extracted. Information from the extracted instance structures and device structures are further grouped and processed to provide useful information reports to a consumer. As the electrical parameters are determined and added to the data set, they can be incrementally processed so that near real time information can be provided to the consumer. The cost of operating each device and other information enables the consumer to make informed decision regarding energy use and conservation. | 06-16-2011 |
20110161021 | DYNAMIC LOAD ESTIMATION OF MULTIPLE BRANCH CIRCUITS - Systems and methods of branch circuit load estimation are disclosed. A total power usage of a main line of an electrical distribution panel that includes a plurality of branch circuits with at least two of the plurality of branch circuits coupled to the main line can be determined. A first power usage of the main line is determined with a first of the two branch circuits decoupled from the main line, and a first time period that the first branch circuits is coupled with the main line is identified. A kilowatt-hour energy usage value of the first branch circuit is estimated based on the first time period and a differential between the total power usage and the first power usage. | 06-30-2011 |
20110184675 | ISOLATED CURRENT SENSOR WITH CODEC - The present disclosure includes a power measurement, circuit breaker or integrated protection system including isolated analog-to-digital modulators for measuring current using current sensors, such as, for example, current shunts, in a single or multiphase power system. In one embodiment, the modulators are divided into a line-side device with an analog-to-digital modulator and a host-side device including a decimation filter and a processor. In one embodiment, an isolation barrier, such as, for example, a pulse transformer, divides the line-side device from the host-side device. | 07-28-2011 |
20110191041 | Method and Device for the Non-Intrusive Determination of the Electrical Power Consumed by an Installation, by Analysing Load Transients - A method and device for the non-intrusive determination of the electrical power consumed by a subscriber installation. From the sampled values of the supply current and supply voltage that are delivered to the installation, constituting a consumption signal, the sampled values are grouped in successive observation time windows; the poles and residues of the consumption signal are discriminated in each current window using the pencil method, the set of poles and residues associated with at least one singular value representing a combination of signatures of separate electrical loads; at least the active power consumed by a subset of electrical loads in operation is calculated, over at least the duration of the current observation window, the sum of the active powers consumed by each electrical load satisfying a consumed power function linking these poles and residues. | 08-04-2011 |
20110224927 | ENERGY CONSUMPTION IMPROVEMENT CALCULATION APPARATUS, METHOD FOR CONTROLLING SAME, AND ENERGY CONSUMPTION IMPROVEMENT CALCULATION PROGRAM - An energy consumption improvement calculation apparatus calculates an amount of room-for-improvement that is an improvable amount of power consumption of at least one target device. A cycle use section of the energy consumption improvement calculation apparatus uses measured values and measurement times of power consumption and a fluctuating cycle of power consumption which fluctuates periodically. The cycle use section includes: a phase determining section for determining a phase of the measurement time with respect to one cycle; a table generating section for calculating a reference value which is an average of plural ones of the measured values measured at measurement times corresponding to the phase and generating a correspondence table between each phase and the reference value; and a subtraction section for subtracting, from a measured value measured at a given measurement time, a reference value corresponding to a phase of the given measurement time and obtained by the phase determining section and the correspondence table. The subtraction result gives the amount of room-for-improvement at the given measurement time. | 09-15-2011 |
20110238340 | Virtual Machine Placement For Minimizing Total Energy Cost in a Datacenter - Techniques for virtual machine placement in a datacenter are provided. The techniques include using one or more server power characteristics to determine a power cost for any given virtual machine placement in the datacenter, using a heat profile of one or more datacenter components in relation to one or more cooling resources in the datacenter to determine cooling cost for any given virtual machine placement in the datacenter, and using the power cost and cooling cost to apply integrated energy cost minimization at one or more levels of hierarchy in the datacenter to determine placement of a virtual machine in the datacenter such that the integrated energy cost of the datacenter is minimized. | 09-29-2011 |
20110238341 | High Power DC Kilowatt Hour Meter - A high voltage and high current direct current (DC) power meter utilizes step down circuits and optocoupling to generate analog signals that are representative of current through a load and voltage across the load, but that are scaled appropriately for processing by analog to digital conversion circuitry. Power meters consistent with the invention in many cases may be inexpensive, small, solid state and very accurate, and adaptable for use in measuring a wide range of high voltages and currents. A high voltage and high current DC power meter, a method of assembling such a power meter, a method of calculating power consumed by a load with such a power meter, an apparatus to calculate energy consumed by a load, and a program product to calculate energy consumed by the load are provided. | 09-29-2011 |
20110238342 | METHOD FOR CALCULATING ENERGY EFFICIENCY OF INFORMATION TECHNOLOGY EQUIPMENT - The present invention provides a METHOD TO CALCULATE AN ENERGY EFFICIENCY RATING for information technology equipment. This method specifically pertains to information technology equipment that doubles its capabilities in a predetermined timeframe according to Moore's Law. This method uses a formula to calculate an energy efficiency rating based on power consumption and transactions per second. It further calculates a normalized rating where the absolute rating is adjusted based on Moore's Law prediction of improvements. As a result the method invented is the first and only method to compare information technology from various generations of hardware, processor and component architecture with each other in terms of their energy efficiency. | 09-29-2011 |
20110246106 | Utility Meter With Wireless Pulse Output - An arrangement for measuring electrical energy consumption includes an input circuit operable to generate a first signal representative of a line voltage waveform and a second signal representative of a line current waveform. The arrangement further includes a processing circuit operable to generate energy consumption data based on the first signal and the second signal. The processing circuit is further operable to generate a first pulse waveform having a plurality of output pulses based on the energy consumption data, each output pulse corresponding to a quantity of energy consumed. The arrangement further includes a wireless transmitter coupled to the processing circuit, the wireless transmitter configured to transmit an RF signal each time the first pulse waveform changes state. The arrangement also includes an external device positioned remote from the electrical utility meter, the external device including a receiver configured to receive the RF signal. | 10-06-2011 |
20110251807 | AUTOMATIC DETECTION OF APPLIANCES - Devices and methods for identifying an electrical device, and its state, in a network of electrical devices are disclosed. An energy monitoring device is programmed to identify an electrical device coupled to a power supply, and a state of the electrical device, from a change in successive measurements of the power supply. Algorithms for determining a load signature for an electrical device and its state are disclosed. A stored table of load signatures for states is used to identify devices, and states. Energy monitoring information is collected and presented to the user on a display, a remote display, or is transmitted over a network to a remote device such as a personal computer, personal digital assistant, an iPhone®, a cell phone, voice mail, email, or text message. | 10-13-2011 |
20110257911 | SYSTEMS AND METHODS FOR DETECTING CHANGES IN ENERGY USAGE IN A BUILDING - A computer system for use with a building management system for a building includes a processing circuit configured to automatically identify a change in a building's energy usage model based on data received from the building management system. The processing circuit may be configured to communicate the identified change in the static factor to at least one of (a) a module for alerting a user to the identified change and (b) a module for initiating an adjustment to the energy model for a building in response to the identified change. | 10-20-2011 |
20110270551 | METERING DEVICE WITH CONTROL FUNCTIONALITY AND METHOD THEREOF - A metering device of a power substation and method are provided for operating on a secondary analog waveform output by a transformer assembly receiving a primary waveform. The method includes stepping down the secondary waveform and generating a corresponding output signal; operating on the corresponding output signal for generating a corresponding first digital signal having a value proportional to the corresponding output signal and within a first range; and operating on the corresponding output signal for generating a corresponding second digital signal having a value proportional to the corresponding output signal and within a second range. The method further includes processing the first digital signal and outputting a corresponding first output signal; processing the second digital signal and outputting a corresponding second output signal; processing the first and second output signals; and generating output corresponding to the processing of the first and second output signals. | 11-03-2011 |
20110301887 | METHOD AND APPARATUS FOR NOISE REDUCTION AND DATA COMPRESSION - A method and apparatus for carrying out noise reduction in data regarding parameter values comprising the steps of, making a series of measurements of parameter values at times separated by predetermined time intervals, forming a plurality of successive measurements into an array of measurements, performing n successive wavelet transforms on the array of measurements to produce an array of coefficients, comparing the values of the array of coefficients to a threshold value and, selectively changing the values of said coefficients based on their relationship to the threshold, to produce an array of filtered coefficients, and performing n successive inverse wavelet transforms on the array of filtered coefficients to produce an array of filtered measurements. | 12-08-2011 |
20110301888 | SYSTEM AND METHOD FOR PLANNING OF DEMAND FOR POWER ON AN ELECTRICAL POWER NETWORK - A system and method for calculating energy to be preceded or delayed through a deactivation of appliance on a power network to reduce a highest threshold of power production required to meet power demand. Predictions of power demand by appliances and the possibility of preceding or delaying such demand away from a time of high power usage allow power use to be shifted away from periods of peak production. Further, such predictions allow more complete use of power once a power generator has been activated. | 12-08-2011 |
20110307200 | RECOGNIZING MULTIPLE APPLIANCE OPERATING STATES USING CIRCUIT-LEVEL ELECTRICAL INFORMATION - An approach to measuring power consumption of multiple appliances adopts a transition probability to model the correlation and causality of appliance events caused by human behavior. The sequential order and relevance of using appliances can be taken into account. For instance, correlation between the use of (e.g., states of) different electrical appliances may be used. | 12-15-2011 |
20110313693 | OPERATIONAL STATUS DETERMINATION DEVICE AND OPERATIONAL STATUS DETERMINATION METHOD - An operation status determination device includes: a receiving unit which receives a value, as power consumption data, from which power consumption of an appliance is derivable, the power consumption being measured at predetermined time intervals; a specification unit which specifies operation start times of the appliance, based on the power consumption data received by the receiving unit; and a determination unit which determines whether or not the appliance starts operating automatically, based on each of occurrence frequencies of the operation start times specified by the specification unit. | 12-22-2011 |
20120004871 | POWER MONITORING DEVICE FOR IDENTIFYING STATE OF ELECTRIC APPLIANCE AND POWER MONITORING METHOD THEREOF - A power monitoring device for identifying the state of an electric appliance based on user feedbacks and a power monitoring method thereof are provided. The power monitoring device includes a measurement module, a variation detection and search module, and an electric appliance signature database established based on user feedbacks. When the measurement module detects a variation of a power consumption feature, the variation detection and search module searches the electric appliance signature database according to the variation to obtain electric appliances similar to the variation and the states thereof. A user contributes data to the electric appliance signature database by confirming the search result, or selecting the correct electric appliance and the state thereof. When the user confirms the search result, the power monitoring device establishes an association between the electric appliance and its electric appliance signatures and updates the electric appliance signature database. | 01-05-2012 |
20120016606 | Power Profiling for Embedded System Design - Tools and methods for profiling power consumption of an embedded system are provided. Power event and control modules, executable by the embedded system are provided. Additionally, a power measurement and control unit is provided that can measure the power consumption and limit the supply current to the embedded system. Furthermore, a power profiling tool is provided. The tool includes modules that interface with the power measurement and control unit and well as the power event and control modules. Then, power event and system data may be received by the power profiling tool from the embedded system and power consumption data may be received from the power measurement and control unit. Subsequently, power consumption metrics may be viewed by the power profiling tool. | 01-19-2012 |
20120046889 | METHOD OF SUBSTATION-CONTROL CENTER TWO-LEVEL DISTRIBUTED NONLINEAR STATE ESTIMATION FOR POWER SYSTEM - A substation-control center tow-level distributed grid nonlinear state estimation method is provided. The method comprises steps of: collecting RTU measurement data and PMU measurement data at each voltage level in each substation; performing a first three-phase state estimation to obtain a first estimation result, and removing bad data from the RTU measurement data and the PMU measurement data to estimate a state of a CB; forming a new CB island at each voltage level, and performing a second three-phase state estimation for the new CB island to obtain a final estimation result, in which the new CB island is a bus; processing the final estimation result to obtain ripe data; and collecting the ripe data and/or a part of the RTU measurement data and a part of the PMU measurement data and performing a whole grid state estimation. | 02-23-2012 |
20120046890 | ENERGY MONITORING DEVICE - Disclosed is an electrical monitoring device which uses a predictive algorithm for projecting a likely energy cost for an appliance. The current power usage of an attached appliance is measured, and combined with past power usages, and projected energy consumption based on usage trends is calculated, and displayed by an array of multiple LED lights, with different colors indicating different consumption ranges. Projected energy costs are calculated from information included in a cost look-up chart. | 02-23-2012 |
20120059606 | ELECTRONIC DEVICE, ELECTRONIC DEVICE MANAGEMENT SYSTEM, CONTROL METHOD OF ELECTRONIC DEVICE, CONTROL METHOD OF ELECTRONIC DEVICE MANAGEMENT SYSTEM, AND STORAGE MEDIUM - An electronic device to operate in one of a first power mode and a second power mode during which power consumption is lower than during the first power mode. The electronic device includes an electronic device, a first calculation unit, and a second calculation unit. The measurement unit measures power consumption of the electronic device in the first power mode. The first calculation unit calculates power consumption of the electronic device in the second power mode. The second calculation unit calculates total power consumption of the electronic device by adding power consumption measured by the measurement unit and power consumption calculated by the first calculation unit. | 03-08-2012 |
20120059607 | METHOD AND DEVICE FOR FILTERING ELECTRICAL CONSUMPTION CURVES AND ALLOCATING CONSUMPTION TO CLASSES OF APPLIANCES - The invention relates to a method for analysing the electrical consumption of a plurality of electrical appliances operating on a consumption site, by filtering a demand curve representing the electrical consumption of said appliances according to time. Said method is characterised in that it comprises the following steps: before the filtering per se of the demand curve, the demand curve is recorded and digitalised in such a way as to obtain a demand curve digitalised by periods of time; a set of categories of appliances is defined, each category being defined by similar cycles of power variation according to the time; an algorithm is defined for each category of appliances, for filtering the demand curve for said category of appliances, said algorithm being able to extract the power variation cycles from the digitalised demand curve and to allocate the electrical consumption to said category of appliances; then during the filtering per se of the digitalised demand curve, the filtering algorithms for each category of appliance are used successively to identify and regroup the power variation cycles consumed by said electrical appliances, from the digitalised demand curve. | 03-08-2012 |
20120072143 | System for Monitoring Electrical Power Usage of a Structure and Method of Same - Some embodiments can teach a system for monitoring usage of electrical power by a structure. The structure can have one or more main electrical power lines that supply the electrical power to a first load in the structure. A portion of the one or more main electrical power lines can run substantially parallel to a first axis. The structure can further have a panel that overlies the portion of the one or more main electrical power lines. The system can include: (a) a current sensor unit configured to be coupled to a portion of a surface of the panel, the current sensor unit having: (a) at least one magnetic field sensor having a length substantially parallel to a second axis, wherein the second axis is substantially perpendicular to the first axis, and the at least one magnetic field sensor is configured to detect a magnetic field generated by the one or more main electrical power lines; and (b) a processing unit configured to run on a processor. The current sensor unit can be configured to produce an output signal based on the magnetic field detected by the at least one magnetic field sensor. The processing unit further can be configured to receive the output signal from the current sensor unit and process the output signal to determine one or more parameters related to the usage of the electrical power by the first load in the structure. Other embodiments are disclosed. | 03-22-2012 |
20120078546 | LOAD-SIDE VOLTAGE DETECTION VIA ELECTRIC METERING PROCESSING - Load-side voltage detection via electric metering processing is disclosed. In one aspect, load-side voltage is provided as an input to a metering processing unit. The metering processing unit determines a voltage level of the load-side voltage. An application processing unit uses the voltage level to control operation of a service disconnect relay. | 03-29-2012 |
20120084028 | Framework and Methodology for a Real-Time Fine-Grained Power Profiling with Integrated Modeling - A method, a system and a computer program product for determining power consumption levels for granular segments of program code in a data processing system. A power profiling utility (PPU) utilizes/comprises a power monitoring module, a power profiler module, a performance profiler and a power modeling component which enables PPU to efficiently characterize power consumption of various types of applications. The PPU uses a power measurement device to obtain power consumption measurements corresponding to execution of a first code segment. Additionally, the PPU identifies information about program characteristics of granular code segments within the first code segment. The PPU then determines total power consumption for execution of the first code segment from an aggregation of power consumption measurements corresponding to all iterations of the first code segment. Ultimately, the PPU derives from the total power consumption calculated for the first code segment a finer grained power profile by using the program characteristics information and power modeling information. | 04-05-2012 |
20120084029 | ELECTRONIC WATT-HOUR METER MANAGING MULTIPLE INPUT SIGNALS AND METHOD OF CALCULATING WATT-HOURS - There are provided an electronic watt-hour meter capable of processing a plurality of input signals and a method of calculating watt-hours. The electronic watt-hour meter includes: a signal sensor sensing analogue type voltage and current signals; a multiplexer selectively outputting any one signal of the sensed voltage and current signals; a signal converter converting the selectively outputted signal into a digital signal; a demultiplexer outputting the converted digital signal through a port corresponding to the converted digital signal; and a calculator calculating watt-hours based on the converted digital signal, thereby allowing for a reduction in power consumption and the miniaturizing of the watt-hour meter. | 04-05-2012 |
20120084030 | ENERGY MONITORING DEVICE AND CONTROL METHOD THEREFOR, AND ENERGY MONITORING PROGRAM - A processing machine processes a work and repeats processes on the work, thereby consuming energy. Within the consumed energy, room for improvement is computed by an energy monitoring device and is referred to as an amount of energy that can be improved. An energy monitoring device includes a power data acquirer that acquires a time-series power data measured by a power meter, a cycle detector that detects a single-cycle power data from the power data acquired by the acquirer, a divider that divides the single-cycle power data detected by the detector into an added-value creating portion and an unproductive portion, and a computing unit that computes an amount of energy consumed in the unproductive portion divided by the divider and defines it as the amount of energy to be improved. | 04-05-2012 |
20120109550 | METHOD AND SYSTEM OF SAMPLING TO AUTOMATICALLY SCALE DIGITAL POWER ESTIMATES WITH FREQUENCY - A method for automatically scaling estimates of digital power consumed by a portion of an integrated circuit (IC) device by the operating frequency of the portion of the IC are described herein. The method may include obtaining an energy value which may correspond to an amount of energy used by the portion of the IC. A cumulative energy value may be generated by repeatedly, at a frequency proportional to the operating frequency of the portion of the IC, obtaining energy values and adding each obtained energy value to a sum of energy values for the portion of the IC. The cumulative energy value may be sampled at a time sample interval to generate an estimate of the portion of the IC's digital power consumption that is automatically scaled with the operating frequency of the portion of the IC. | 05-03-2012 |
20120109551 | POWER CONSUMPTION DISPLAY UNIT FOR MACHINE TOOL - A power consumption display unit for a machine tool includes: machining state determining means for determining, when a main power switch used to supply power to a machine tool is ON, whether the machine tool is in a machining state where a machining program is executed to machine a workpiece or in a non-machining state where the machining program is not executed; power consumption measuring means for measuring a power consumption of the machine tool during a period where the machine tool is determined to be in the non-machining state by the machining state determining means; and display means for displaying the power consumption measured by the power consumption measuring means. | 05-03-2012 |
20120123710 | DEVICE AND METHOD FOR DETECTING THE ENERGY QUANTITY IN THE CHARGING STATION FOR AN ELECTRIC VEHICLE - The present invention relates to a method and a device for detecting electrical energy delivered to an electric vehicle. To this end, the following steps are provided: connecting the electric vehicle to a charging station for obtaining electrical energy provided on a charging cable, feeding the desired energy quantity into a battery of the electric vehicle during a desired charging period, detecting of at least one electrical value required for the calculation of the energy quantity by an energy quantity meter and output of the at least one electrical value, required by the energy quantity meter for the calculation of the energy quantity, to a monitoring device for the operational monitoring of the charging station. | 05-17-2012 |
20120130657 | MEASURING POWER CONSUMPTION IN AN INTEGRATED CIRCUIT - A method for determining power consumption of a power domain within an integrated circuit is presented. In a first step, a local power supply impedance profile (Z(f)) of this power domain is determined. Subsequently, a local time-resolved power supply voltage (U(t)) is measured while a well-defined periodic activity is executed in power domain. A set of time-domain measured voltage data (U(t)) is thus accumulated and transformed into the frequency domain to yield a voltage spectrum (U(f)). A current spectrum I(t) is calculated from this voltage profile (U(f)) by using the power supply impedance profile Z(f) of this power domain as I(t)=F | 05-24-2012 |
20120143538 | ENERGY CONSUMPTION DETECTION SYSTEM FOR ELECTRONIC DEVICE - An energy consumption detection system for an electronic device includes a detection device and a data processing device. The data processing device includes a signal control unit, a storage unit, and a signal setting unit. The signal control unit provides and outputs command signals, and the storage unit stores different function programs. The signal setting unit sets and runs the function program under the control of the signal control unit to activate and enable the detection device, and the detection device receives, processes, and transmits test results to the signal control unit, which generates energy consumption data accordingly. | 06-07-2012 |
20120179395 | Information Display System And Method - An efficiency gauge from a vehicle information display may incorporate vehicle range information in addition to an efficiency indicator. The range information may be displayed as an area on the efficiency gauge indicating a safe operating region for average driving in order for the vehicle to reach a target destination before an on-board energy source is depleted. By maintaining a vehicle's average trip efficiency within the safe operating region through driving behavior, the display may convey that the vehicle will be able to make it to the target destination. Over the course of a trip, the safe operating region may be constantly updated to reflect the current state of the battery and the remaining distance to the target destination. | 07-12-2012 |
20120191386 | Utility energy monitoring device - This device is a utilities monitor. Said device displays current usage of utility resources being consumed and records and displays usage data. Said device receives utility usage data from sensors that are measuring utility (such as gas, water and/or electricity) usage data. | 07-26-2012 |
20120197561 | NETWORK RELAY DEVICE - A network relay device includes a main functional portion including a relaying function for network communication, a power supply portion for converting an AC current taken from an external AC power supply to a DC current, and providing the DC current to the main functional portion, a measuring unit for measuring a value of the DC current, after the conversion to the DC current provided from the power supply portion to the main functional portion, and a computing unit for computing a total power consumption of a whole including the main functional portion and the power supply portion, based on a result measured by the measuring unit. | 08-02-2012 |
20120197562 | Determining Energy Consumption in a Structure - Methods, apparatus, and systems are provided for measuring the supply of a consumable product/energy source, such as electrical power, to a facility over time and analyzing the measurements to determine the consumption or supply of the product by one or more loads and/or sources in the facility, and to determine induced and residual heat flow through the facility's envelope. Various aspects compare the measured supply of the consumable product to a database of consumption signatures, which characterize access to the consumable product by particular users. Operating conditions and facility characteristics, such as temperatures, load factors, insulation factors, etc., may be further considered in determining a particular user's access of the consumable product. To aid in the controlling of energy use, thermal resistance factors of the building are determined, which are based on the induced and residual heat flow through the facility. | 08-02-2012 |
20120209548 | MONITORING OCCURRENCE OF TRANSMISSION AND DISTRIBUTION GRID CODE EVENT BY POWER CONSUMPTION DEVICE - Disclosed herein is a power consumer approach that monitors the occurrence of grid code events within electric power transmission operations. In one aspect, a grid code event meter is used to detect the occurrence of a grid code event. The grid code meter includes a metering component configured to obtain data for power-related parameters associated with consumption needs. A grid code criteria tracking component tracks the data related to the power-related parameters obtained by the metering component for compliance with grid code criteria required by a transmission company of a consumer for power quality and reliability. A grid code event detection component detects an occurrence of a grid code event in accordance with the tracked data for the power-related parameters. | 08-16-2012 |
20120209549 | EQUIPMENT-RELATED RISK ASSESSMENT FROM ELECTRICAL EVENT ANAYSIS - Methods and apparatus are provided for assessing equipment related risk based on electrical event data. An electrical event is an electrical voltage or current that falls outside a nominal range during an event duration. The electrical event data for electricity supplied to electrically-powered equipment is analyzed and one or more types of equipment related risk associated with an electrical event are quantified based on the electrical event data. A visual representation of the quantified one or more equipment related risks is provided. | 08-16-2012 |
20120215468 | METHOD AND SYSTEM FOR DETECTING POWER SUPPLY SOURCE ELECTRICAL CURRENT CAPACITY - An apparatus and method for determining a power supply electrical current capacity. In one example, an operating circuit is placed into an operating mode that causes the operating circuit to have a determined electrical current consumption. A charging circuit that is electrically connected in parallel with the operating circuit is configured to provide a maximum charging current to a power pack. After configuring the charging circuit, a value of a measured charging current provided to the power pack is received. After receiving the value of the measured charging current, an electrical current supply capacity value of the external power supply is determined as a function of the determined electrical current consumption and the value of the measured charging current. | 08-23-2012 |
20120215469 | INSTRUMENT AND METHOD FOR MEASURING THE LOSS FACTOR OF AN ELECTRICAL APPARATUS - An instrument ( | 08-23-2012 |
20120221265 | SYSTEMS AND METHODS FOR PHASE IDENTIFICATION - Described herein are methods, systems, apparatuses and products for phase determination in an electricity grid. An aspect provides for determining phase for at least one electric grid device via receiving power consumption measurements derived from electricity grid devices connected in the electricity grid, comparing, over a series of time intervals, a total power consumed; and determining a phase for at least one electricity grid device. | 08-30-2012 |
20120232815 | ELECTRONIC WATT-HOUR METER AND ELECTRONIC WATT-HOUR MEASURING METHOD - An electronic watt-hour meter of according to an aspect of the invention includes: a first multiplexer receiving a plurality of detected currents detected in respective polyphase power lines in parallel; a first signal converter converting a signal output from the first multiplexer into a digital signal; a first demultiplexer outputting a serial input from the first signal converter in parallel; a line voltage generator generating a plurality of line voltages from the plurality of detected voltages; a second multiplexer receiving the plurality of line voltages in parallel, to output the received line voltages in series; a second signal converter converting a signal output from the second multiplexer into a digital signal; a second demultiplexer outputting a serial input from the second signal conveter in parallel; and an calculating unit calculating a power value from a signal output from the first demultiplexer and a signal output from the second demultiplexer. | 09-13-2012 |
20120245868 | RESERVE CAPACITY CALCULATING APPARATUS AND METHOD THEREFOR, AND COMPUTER READABLE MEDIUM - A power consumption distribution calculator uses a predicted outdoor temperature sequence of the customer house for a prediction period at a first date from a first time to a second time, and identifies dates having a sequence part similar to the predicted outdoor temperature sequence in the prediction period, identifies power consumption sequences corresponding to identified dates, and calculate a statistical distribution or a representative value of identified power consumption sequences for a whole period from a third time to the second time, the third time being earlier than the first time. A power consumption predicting unit calculates a predicted power consumption sequence in the prediction period based on the statistical distribution or the representative value. A reserve capacity calculating unit calculates reserve capacity being a difference between a predicted power consumption sequence and a sequence part in the prediction period of the reference power consumption sequence. | 09-27-2012 |
20120253710 | METHODS AND SYSTEMS FOR MANAGING FACILITY POWER AND COOLING - A method and corresponding apparatus provide a determination of available power capacity of a phase of a power supply in a data center rack. The method includes metering the power of a power supply and calculating an average peak power draw per phase of the power supply. Using average peak power draw per phase of the power supply and the expected power draw data corresponding to data center equipment coupled to the power supply, the available power capacity can be calculated on a per phase of the power supply. A method and corresponding apparatus for managing data center equipment may use the phase based available power capacity calculations to determine the optimal placement of new data center equipment within a data center configuration. | 10-04-2012 |
20120253711 | ENERGY CHARGING APPARATUS, ENERGY SAVING APPARATUS, ENERGY CONSUMING APPARATUS, AND METHOD OF MANAGING GREEN ENERGY - An energy charging apparatus includes an energy charging unit charging green energy in an energy saving apparatus, a measured amount information acquisition unit acquiring measured amount information that indicates a charged amount of green energy measured by the energy saving apparatus from the corresponding energy saving apparatus, and a certificate issuance unit issuing a certificate for certifying an amount of green energy charged in the energy saving apparatus when a charged amount of green energy charged by the energy charging unit coincides with the charged amount of green energy shown in the measured amount information, wherein the certificate is managed in association with the energy saving apparatus and is discarded if the amount of green energy that is certified by the corresponding certificate is output from the energy saving apparatus. | 10-04-2012 |
20120253712 | POWER CONSUMPTION CALCULATION METHOD, POWER CONSUMPTION CALCULATION APPARATUS, AND NON-TRANSITORY COMPUTER-READBLE MEDIUM STORING POWER CONSUMPTION CALCULATION PROGRAM - A method of calculating power consumption of an integrated circuit based on circuit information representing an internal configuration of each circuit and connection-between-circuits information is performed by a computer. The method includes acquiring transition information about input and output signals of the circuit by performing logical analysis, on the assumption of no propagation delay between the circuits, based on input pattern information of the integrated circuit, the connection-between-circuits information, and logical model information about the circuit, extracting from transition patterns of the input signal, a transition pattern causing a glitch in the output signal based on the logical model information, reflecting the glitch in the transition information about the output signal responsive to the input signal having the extracted transition pattern among the acquired transition information, and calculating, by the computer, the power consumption of the integrated circuit based on the transition information in which the glitch is reflected. | 10-04-2012 |
20120259565 | ALTERNATING CURRENT POWER MEASURING APPARATUS - An alternating current power measuring apparatus includes a first capacitance element having one end connected to a conductor wire of a first electrical cable of a set of electrical cables for supplying alternating current to a load and having the other end capacitively coupled to a conductor wire of a second electrical cable, a first voltage measuring part which measures a first voltage which is a voltage of both ends of the first capacitance element, a first current measuring part which measures a first current flowing in the first electrical cable, and a processing part which computes a power to be supplied to the load by the set of electrical cables by the multiplication among a proportion between a specified voltage value of a voltage applied to the set of electrical cables and an effective value of the first voltage, the first voltage and the first current. | 10-11-2012 |
20120265459 | INTEGRATED ELECTRIC METER AND ELECTRIC VEHICLE CHARGING STATION (EVCS) - Embodiments of the invention described herein comprise an integrated electric meter and electric vehicle charging station (EVCS) and methods of using embodiments of the integrated electric meter and EVCS for charging an electric vehicle. | 10-18-2012 |
20120265460 | Fuel consumption measurement of bus HVAC units - The method includes operating an HVAC unit for a test period in an automatic temperature control mode and measuring power consumed at one or more testing heat loads at one or more rotational speeds. The method further includes determining an association between the measured power consumed at the one or more testing heat loads and one or more tested bus engine speeds and calculating power consumed at the one or more testing heat loads at a plurality of profiled bus engine speeds based on the association, wherein the plurality of profiled bus engine speeds is derived from a bus road profile of known bus engine speeds at known time durations, with the known time durations summing to a time period. The method also includes calculating energy consumed at the one or more testing heat loads over the time period. | 10-18-2012 |
20120278014 | METHOD AND APPARATUS FOR MONITORING POWER CONSUMPTION - An apparatus and associated method of monitoring power consumption of an electrical device, the method comprising identifying an electrical device using a power signature unique to that device, the power signature being derived from power consumption measurements, and location information; and monitoring power consumption of such an identified device. | 11-01-2012 |
20120290230 | Methods and Apparatuses for Monitoring Energy Consumption and Related Operations - Apparatus and method including acquiring a signal indicative of power consumption; detecting a transient in the signal; extracting a feature indicative of the transient, wherein extracting the feature includes: fitting a plurality of models to the transient, selecting one of the plurality of models as a model for the transient, and defining the feature indicative of the transient based on at least one parameter of the model for the transient; and classifying the transient based on the feature. | 11-15-2012 |
20120290231 | ENERGY CONSERVATION DIAGNOSIS SYSTEM - An energy conservation diagnosis system manages electrical device K which consumes electricity to operate based on control schedule information, and comprises acquiring unit | 11-15-2012 |
20120296585 | METHOD AND APPARATUS FOR ESTIMATING VIRTUAL MACHINE ENERGY CONSUMPTION - A method and apparatus for estimating virtual machine energy consumption, and in particular, a method and apparatus for estimating virtual machine energy consumption in a computer system. The method includes: obtaining system energy consumption of the system hardware resources; obtaining event information of a plurality of functional units into which the system hardware resources are divided, and mapping the event information to the respective virtual machines; and calculating energy consumption of the virtual machines according to a plurality of energy consumption coefficients corresponding to the plurality of functional units and according to the event information mapped to the functional units of the respective virtual machines. | 11-22-2012 |
20120303299 | PARAMETRIC MULTI-CYCLE AVERAGING IN AN INTELLIGENT ELECTRONIC DEVICE - A method and apparatus measures electrical power usage and quality, while mitigating the effects of noise on measured signals or parameters. Specifically, a digital electrical power and energy meter employs a method in which a processor averages a parameter, such as voltage or current, over a plurality of cycles of a time-varying signal, such as an AC electrical signal. The method employed by the meter samples a parameter over the plurality of cycles and computes the average of the samples corresponding to the same phase angle of the signal to produce an average signal. | 11-29-2012 |
20120310557 | SIMPLIFIED ENERGY METER CONFIGURATION - A power and energy meter self configures the pulse weight and pulse duration for pulse communication. | 12-06-2012 |
20120310558 | LAYERED AND DISTRIBUTED GRID-SPECIFIC NETWORK SERVICES - In one embodiment, a layered/distributed grid-specific network services system comprises grid sensors in the utility grid configured to generate grid data values such as raw grid data values, processed grid data values, and/or any combination thereof, and to communicate the grid data values using a communication network. Distributed grid devices in the utility grid may be configured to receive the grid data values, and one or more of the grid devices may be configured to convert raw grid data values into processed grid data values. Application devices in the utility grid may be configured to access the grid data values from the distributed grid devices, and to further process the grid data values according to a particular grid application operating at the corresponding application device into application data values. | 12-06-2012 |
20120316807 | DETERMINING ELECTRICAL LOAD AND LIFESTYLE CHARACTERISTICS - An apparatus, system, and method are disclosed for determining electrical load and lifestyle characteristics. A record receiving module receives an electrical energy usage record for premises for a predefined time period (“record period”), and receives property characteristics for the premises. The property characteristics include physical characteristics for the premises, environmental characteristics for the premises for the record period, and/or lifestyle characteristics of users of the premises. A load identification module selects a load prediction algorithm to determine if a particular type of electrical load is present at the premises. A comparison module applies the load prediction algorithm to the electrical energy usage record for the premises for at least a portion of the record period (“comparison period”) to determine if the particular type of electrical load is present at the premises. The load prediction algorithm uses the property characteristics of the premises during the comparison period. | 12-13-2012 |
20120316808 | SYSTEM AND METHOD FOR HOME ENERGY MONITOR AND CONTROL - The invention generally concerns systems and methods for monitoring and controlling the power consumption of a power-consuming device. The system and method may connect to a power source and a power-consuming device, connecting the power-consuming device to the power source. The power usage of the power-consuming device may then be measured and monitored. This monitoring data may then be stored and optionally sent to a controlling device on a data network. The location of the power-consuming device may also be determined, recorded, and sent to a controlling device. The system may also control the power usage of the power-consuming device. In some cases, a remote server may connect multiple energy monitoring systems in order to gain additional efficiencies and foster a community-based social network. | 12-13-2012 |
20120330584 | Systems and Methods for Power Monitoring in a Variable Data Processing System - Various embodiments of the present invention provide systems and methods for data processing. As an example, a data processing circuit is discussed that includes: a data detector circuit, a data decoder circuit, and a power monitor circuit. The data detector circuit is operable to apply a data detection algorithm to a data input and a decoded output to yield a detected output. The data decoder circuit is operable to apply a data decoding algorithm to the detected output to yield the decoded output. The power monitor circuit is operable to receive a first power status signal from the data detector circuit and a second power status from the data decoder circuit, and to calculate a power usage of a combination of at least the data detector circuit and the data decoder circuit. In such a system, a number of global iterations through a combination of the data decoder circuit and the data detector circuit is variable and both of the first power status signal and the second power status signal varies at least in part as a function of the number of global iterations. | 12-27-2012 |
20120330585 | Methods and Systems Involving Databases for Energy Usage Data - A method includes receiving data associated with time periods that types of electrical devices are used at a metered location and storing the data in a database, associating demographic data with the metered location and storing the associated demographic data in the database, defining a demographic type associated with the metered location, processing the data associated with the time periods that the types of electrical devices are used at the metered location and the demographic data associated with the metered location to define time periods that types of electrical devices are used by demographic types similar to the demographic type associated with the metered location, and identifying an alternative time period that at least one electrical device of the types of electrical devices may be used. | 12-27-2012 |
20120330586 | ESTIMATING COMPONENT POWER USAGE FROM AGGREGATE POWER USAGE - A method, system, and computer program product for estimating component power usage using aggregate power usage data are provided in the illustrative embodiments. A power estimation model is received, the model correlating a factor of the component with an aggregate power consumption of a set of components during a period, the component being a member of the set of components, the component being a hardware device operating in the data processing environment and consuming electrical power, the factor being a characteristic of the component related to the consumption of the electrical power in the component. A value of the factor at a determined time is received. The value of the factor is applied to the power estimation model to generate an estimate of electrical power consumed by the component. The estimate is output as the estimated power usage of the component when the factor attains the value. | 12-27-2012 |
20130006555 | METHOD AND APPARATUS FOR MEASURING THE POWER OF A POWER GENERATOR WHILE OPERATING IN VARIABLE FREQUENCY MODE AND/OR WHILE OPERATING IN PULSING MODE - Methods and apparatuses are disclosed for measuring electrical characteristics of power that is applied to a plasma processing chamber when the electrical generator operates in a pulsing mode, when the electrical generator operates in a variable frequency mode, and when the electrical generator operates in both a pulsing mode and in a variable frequency mode concurrently. | 01-03-2013 |
20130018608 | SYSTEMS AND METHODS FOR METERING AND ANALYZING ENERGY CONSUMPTION OF EVENTS WITHIN A PORTABLE DEVICE - System and methods to determine the energy consumption per event type from usage data of portable devices are described. An example method includes determining a first plurality of linear equations representative of energy expended in a portable device for a second plurality of functions, the second plurality of functions including at least one software function of the portable device, the first plurality being more than the second plurality, and determining, using a processor, energy values corresponding to the second plurality of functions by applying a statistical method to the first plurality of linear equations. | 01-17-2013 |
20130024141 | ENERGY CONSUMPTION ANALYSIS USING NODE SIMILARITY - Systems and methods of analyzing energy consumption using node similarity are disclosed. An example of a method may be carried out by program code stored on non-transient computer-readable medium and executed by a processor. The method includes assigning a similarity score to a plurality of nodes using at least one of: domain based rules, attribute based similarity metrics, and machine learning. The method also includes identifying a similar node from the plurality of nodes, for a node under consideration, based on the similarity score. The method also includes determining energy consumption of the node under consideration based on energy consumption of the similar node. | 01-24-2013 |
20130035884 | APPARATUS AND METHOD FOR SUB-METERING OF HOUSEHOLD DEVICES - An apparatus and method for estimating resource consumption of a household device, e.g., an appliance. The method comprises determining a resource demand profile for a household device for a given time period, the resource demand profile associating, for the given time period, a device state of the household device with a total resource demand for the household. In one embodiment, the apparatus can be incorporated into an energy management system, where the apparatus collects data from each of the appliances in a household as well as from a resource meter. | 02-07-2013 |
20130035885 | TOPOLOGY IDENTIFICATION IN DISTRIBUTION NETWORK WITH LIMITED MEASUREMENTS - A statistical technique is used to estimate the status of switching devices (such as circuit breakers, isolator switches and fuses) in distribution networks, using scares (i.e., limited or non-redundant) measurements. Using expected values of power consumption, and their variance, the confidence level of identifying the correct topology, or the current status of switching devices, is calculated using any given configuration of real time measurements. Different topologies are then compared in order to select the most likely topology at the prevailing time. The measurements are assumed as normally distributed random variables, and the maximum likelihood principle or a support vector machine is applied. | 02-07-2013 |
20130046493 | SYSTEMS AND METHODS FOR DATA ANOMALY DETECTION - Systems and methods for performing data anomaly detection and/or removal are usable to accurately assess baseline power consumption. According to one embodiment of the invention, a system can be provided. The system can be operable to receive energy consumption data of a location; select, based at least in part on a collection period of the energy consumption data, an algorithm for detecting anomalies in the energy consumption data; perform the algorithm on the energy consumption data to detect the anomalies in the energy consumption data; and determine an energy consumption baseline for the location based at least in part on a result of the algorithm. | 02-21-2013 |
20130073231 | IN-SITU DATA ACQUISITION SYSTEMS AND METHODS - Data acquisition systems and methods for acquiring test data associated with standard insulated power cables and/or power equipment such as switchgears, transformers, electric motors, etc are disclosed. The test data may then be subsequently analyzed for defects, such as the presence of faults, discharges (e.g., PD, coronas, arcing, etc.). The systems may store the acquired test data on removable, non volatile memory, such as Flash memory. The removable memory may be retrieved by an un-skilled technician periodically and returned to a lab or other test facility for subsequent analysis by highly trained analysts. | 03-21-2013 |
20130073232 | Source Power Anomaly and Load Power Consumption Monitoring and Analysis - Power data are collected from one or more power modules that control power to a connected load. The power data may include indications of source electricity measurements and of load power consumption measurements. These measurements are correlated in space or time and a set of the correlated source electricity measurements or the correlated load power measurements is selected for presentation. The selected set of measurements is presented on a presentation device such that deviations from specified values are indicated to a user. | 03-21-2013 |
20130085692 | POWER MEASURING SYSTEM - Disclosed herein is a power measurement system capable of power of electric devices without performing a quantization process through a separate analog-digital converter for voltage. The power measurement system includes a smart meter measuring a voltage root mean square value input to an electrical device; and a power measurement device measuring power of the electrical equipment using a voltage root mean square value Vrms measured by the smarter meter and a current instantaneous values of power lines connected to the electric device. | 04-04-2013 |
20130085693 | METHOD AND DEVICE FOR REGISTERING ELECTRICAL CONSUMPTION AND GENERATION - A method and device for registering electrical consumption and generation in an energy management network has at least one energy management unit, and, in a power distribution system, a number of electrical consumers or consumer groups and a number of generators are interconnected with the aid of assigned components in the form of switching elements and energy meters, which are influenced or analyzed by the energy management unit, as a function of the purchase price and the feed-in remuneration. | 04-04-2013 |
20130096856 | SYSTEMS AND METHODS FOR ADAPTIVE POSSIBLE POWER DETERMINATON IN POWER GENERATING SYSTEMS - A system for determining the output capacity of a power generating system including a sensor that monitors at least one condition of the power generating system and outputs the monitored condition data, and a power capability determination device that dynamically determines a full capacity of the power generating system based upon the outputted environmental data from the electronic controller. | 04-18-2013 |
20130096857 | METHOD TO DETERMINE UTILITY CONSUMPTION OF INDIVIDUAL APPLIANCES IN A HOUSEHOLD FROM PERIODIC MEASUREMENTS OF AGGREGATE UTILITY CONSUMPTION - A method of determining the utility consumption of each appliance in a collection of appliances by using periodic measurements of aggregate utility consumption of all appliances in the collection, is disclosed. The method comprises of determining the normal utility consumption of various modes of each appliance, fixing a measurement interval, and then measuring aggregate utility consumption at periodic intervals. In each interval, we first determine if the change in aggregate utility consumption in an interval is due to change in status (ON or OFF) of one of the appliances. Otherwise we determine if the change in aggregate consumption is due to a change in status of a pair of appliances. Otherwise, we determine if change in aggregate consumption is due to change in status of a triplet of appliances. | 04-18-2013 |
20130103331 | ELECTRICITY CONSUMPTION MEASUREMENT APPARATUS, ELECTRICITY CONSUMPTION MEASUREMENT METHOD, AND NON-TRANSITORY TANGIBLE MACHINE-READABLE MEDIUM THEREOF - An electricity consumption measurement apparatus, an electricity consumption measurement method, and a non-transitory tangible machine-readable medium thereof are provided. The electricity consumption measurement apparatus comprises a detector and a processor electrically connected to the detector. The detector is configured to detect an electricity consumption value and a voltage value. The processor is configured to calculate a variation rate according to the voltage value and a base voltage value. The processor adjusts the electricity consumption value according to the variation rate. The electricity consumption measurement method is able to perform the same operations as those performed by the electricity consumption measurement apparatus. | 04-25-2013 |
20130110423 | ANALYZING POWER CONSUMPTION IN MOBILE COMPUTING DEVICES | 05-02-2013 |
20130116951 | SYSTEM AND METHOD FOR MONITORING AND REPORTING ENERGY RECOVERY VENTILATOR POWER CONSUMPTION AND SERVICE AND MAINTENANCE NEEDS - A system for, and method of, monitoring and reporting ERV power consumption and service and maintenance needs. In one embodiment, the system includes: (1) a processor configured to carry out a plurality of monitoring and reporting functions related to ERV power consumption and service and maintenance needs based on a model, and types and locations of sensors, of the ERV, (2) a memory coupled to the processor and configured to store data gathered from the sensors and (3) a commissioning database associated with the memory and configured to contain commissioning data regarding the model of the ERV and the service and maintenance needs. | 05-09-2013 |
20130116952 | POWER METERING SYSTEM AND A METHOD OF DISPLAYING READING DERIVED FROM THE SAME - A metering apparatus ( | 05-09-2013 |
20130132009 | SYSTEMS AND METHODS FOR APPORTIONING POWER CONSUMPTION - The present disclosure includes a system and method for apportioning power consumption. In an example of apportioning power consumption according to the present disclosure, a transaction mix for a service is determined ( | 05-23-2013 |
20130144545 | CPU POWER TESTING APPARATUS AND METHOD - A CPU power testing apparatus includes a CPU power supplying circuit; a first A/D converter connected with an input of the CPU power supplying circuit. The first A/D converter obtains an input voltage of the CPU power supplying circuit and converts the input voltage into digital values Vin. A second A/D converter connected with an output of the CPU power supplying circuit obtains an output voltage of the CPU power supplying circuit and converts the output voltage into digital values Vout. A single-chip microcontroller obtains Vin from the first A/D converter, and Vout from the second A/D converter, and the system parameters of an application platform, and calculates and displays an amount of the power being consumed by the CPU according to a predetermined formula. | 06-06-2013 |
20130144546 | BUILDING ENERGY ANALYSIS TOOL - A building energy analysis system includes a building component library configured to store a plurality of building components, a modeling tool configured to access the building component library and create a building model of a building under analysis using building spatial data and using selected building components of the plurality of building components stored in the building component library, a building analysis engine configured to operate the building model and generate a baseline energy model of the building under analysis and further configured to apply one or more energy conservation measures to the baseline energy model in order to generate one or more corresponding optimized energy models, and a recommendation tool configured to assess the one or more optimized energy models against the baseline energy model and generate recommendations for substitute building components or modifications. | 06-06-2013 |
20130151178 | Apparatus and Method for Measuring Electric Power - Provided are an apparatus and method for accurately measuring electric power when a consumer receives electric power from an electric utility and supplies surplus electric power to the electric utility in power transmission/reception facilities connected in a Y-delta configuration. The apparatus includes a first power meter measuring an amount of electric power at a Y connection side, a second power meter measuring an amount of electric power caused by neutral circulating current at the Y connection side, and an operational unit subtracting a measured value of the second power meter from a measured value of the first power meter, and deciding an amount of actually consumed electric power. The second power meter includes at least one current transformer (CT) and a plurality of potential transformers (PTs). The at least one current transformer detects neutral circulating current (I | 06-13-2013 |
20130158909 | POWER QUALITY MONITORING APPARATUS AND METHOD THEREOF - The present invention includes a calculating unit for calculating an absolute value of an applied commercial voltage, an accumulating unit for accumulating the absolute value of the applied commercial voltage per a constant period to output, an extracting unit for sampling an absolute value accumulative maximum value of the commercial voltage for each period and a determining unit for determining a quality of the commercial voltage by using the absolute value accumulative maximum value of the sampled commercial voltage. It has an advantage that the power quality can be monitored at high speed. | 06-20-2013 |
20130173190 | METHODS AND SYSTEMS FOR ESTIMATING CHARGE CAPACITY OF AN ELECTRICAL ENERGY-STORAGE DEVICE - A method of operating a power system with an electrical energy-storage device is disclosed. The method may include estimating with at least one information-processing device a present charge capacity of the electrical energy-storage device. This may include determining an estimated fatigue-adjusted discharge value by determining an estimated amount of electrical energy discharged from the electrical energy-storage device and applying a fatigue factor to the estimated amount of electrical energy discharged. The fatigue factor may be determined based on a magnitude of electricity discharged from the electrical energy-storage device. The method may also include estimating the present charge capacity of the electrical energy-storage device based on the estimated fatigue-adjusted discharge value and an estimated full capacity of the electrical energy-storage device. | 07-04-2013 |
20130173191 | POWER CURVE CORRELATION SYSTEM - A power curve correlation system is disclosed. The power curve correlation system includes a system including: at least one computing device configured to verify a forecast of a power network load for a component by performing actions including: obtaining a set of load data for the component in the power network over a period; identifying similar load patterns in the set of load data using a pattern recognition technique, independent of at least one of: a scale for a component load, a minimum component load value or a maximum component load value; grouping the identified similar load patterns into distinct groups; categorizing at least one of the distinct groups according to a recurring event associated with a load pattern in the at least one distinct group; and providing the categorized group for verifying the forecast of the power network load for the component using the at least one categorized group. | 07-04-2013 |
20130179101 | ELECTRIC POWER METERING ACCURACY - An apparatus and method for monitoring power consumption of an appliance includes a processor in communication with a memory, the memory including program instructions for execution by the processor to determine a first stable power consumption state of the appliance, record a power consumption of the appliance during the first stable power consumption state, determine an unstable power consumption state of the appliance, suspend recording of the power consumption of the appliance during the unstable state, determine a second stable power consumption state of the appliance, resume recording of the power consumption of the appliance when the appliance is in the second stable power consumption state, and estimate a value of a power consumed during the unstable power consumption state as a factor of the recorded power consumption of the appliance during the first stable power consumption state and the second stable power consumption power state. | 07-11-2013 |
20130179102 | PROCESSING APPARATUS AND PROCESSING METHOD - The purpose of the present invention is to provide a processing apparatus, which operates using a power supply that asynchronously supplies and stops supplying power, and a processing method. A processing apparatus ( | 07-11-2013 |
20130191054 | DIGITAL CIRCUIT POWER MEASUREMENTS USING NUMERICAL ANALYSIS - Power consumed by a digital circuit that contains multiple sub-circuits may be computed. Each sub-circuit may include more than one transistor and have at least one input. A signal transition sensor may be connected to an input to each sub-circuit and configured to count the number of signal transitions at the input or to time the duration of a signal transition at the input. Weight information may be stored that is indicative of an amount of power that is being consumed by each sub-circuit based on a count that is counted by or a time duration that is timed by each signal transition sensor that is connected to an input of that sub-circuit. The amount of power being consumed by the digital circuit may be computed based on a count that is counted by or a time duration that is timed by each signal transition sensor and the weight information. | 07-25-2013 |
20130191055 | APPARATUS AND SYSTEM FOR MANAGING MULTIPLE ELECTRONIC DEVICES - A management apparatus includes an obtaining part configured to obtain a first log data of a first electronic device that is capable of transmitting the first log data, a generating part configured to generate a second log data of a second electronic device that is unable to transmit the second log data, a calculating part configured to calculate a first power consumption amount consumed when the first and second electronic devices are used during a predetermined period, and an outputting part configured to output the power consumption amount calculated by the calculating part. | 07-25-2013 |
20130204559 | Appliance Monitoring and Control Systems - We describe a system to provide feedback to a user of an appliance for energy saving, the system comprising: means for monitoring an energy consumption of the appliance; means for inferring a mode of use of the appliance from said power consumption; and means for providing feedback to said user responsive to said inferred mode of use to indicate how an amount of energy used by said appliance may be reduced. In some embodiments the means for monitoring power consumption comprises means for identifying one or more periods of operation of the appliance from data representing aggregate power consumption of a plurality of devices including the appliance. In embodiments the means for monitoring the power consumption comprises means for monitoring mains electricity power consumption of the plurality of devices. Alternatively the means for monitoring the power consumption may comprise, for example, a plug-through power sensing device. | 08-08-2013 |
20130211751 | System and Method for Calculating Power Using Contactless Voltage Waveform Shape Sensor - A system and method are provided for calculating power using a voltage waveform shape measurement from a contactless sensor. An electrically conductive medium carries alternating current (AC) electrical current, associated with an AC voltage, from a source node to a destination node. AC current is measured through the electrically conductive medium. Using a contactless sensor, an AC voltage waveform shape is measured. The power usage at the destination node is calculated in response to the AC current measurement, the measurement of the AC voltage waveform shape, and an AC voltage potential. For simplicity, the AC current and AC voltage waveform shape may both be measured at a first node located between the source node and the destination node. The AC voltage potential used in the power usage calculation may be an estimate, an actual measurement, or a value supplied by an external source (e.g., the power utility). | 08-15-2013 |
20130211752 | SOFTWARE POWER ANALYSIS - Methods and systems for providing software power analysis. In an example, a computerized method, and system for performing the method includes determining at least one performance monitoring counter value for at least one processor. A frequency of operation is determined for the processor. A power dissipation level is calculated for the processor using a computing device and the power dissipation level is provided as an output. In an example, at least one application programming interface is received. In an example, at least one application is run. In an example, a default file is generated. The default file contains at least one power model parameter and at least one estimated frequency of operation. In an example, several performance monitoring counter values are generated for at least one core in a multi-core processor. In an example, a software power analyzer control thread is executed. | 08-15-2013 |
20130218494 | Systems for Real-Time Available Transfer Capability Determination of Large Scale Power Systems - A system for accurately determining real-time Available Transfer Capability and the required ancillary service of large-scale interconnected power systems in an open-access transmission environment, subject to static and dynamic security constraints of a list of credible contingencies, including line thermal limits, bus voltage limits, voltage stability (steady-state stability) constraints, and transient stability constraints. | 08-22-2013 |
20130226484 | METHOD AND APPARATUS FOR GENERATING POWER FLOW SIGNATURES - An approach for enabling identification of different types and sources of power being distributed over an electrical power grid is disclosed. An energy management module determines one or more power flows transmitted over at least one electrical power grid. The energy management module then causes a encoding of one or more identification signals into the one or more power flows. The one or more identification signals distinguish the one or more power flows from one or more other power flows transmitted over the at least one electrical power grid. | 08-29-2013 |
20130238266 | CONSUMPTION BREAKDOWN MONITORING THROUGH POWER STATE SENSING - Systems and methods are provided for estimating power breakdowns for a set of one or more appliances inside a building by exploiting a small number of power meters and data indicative of binary power states of individual appliances of such set. In one aspect, a breakdown estimation problem is solved within a tree configuration, and utilizing a single power meter and data indicative of binary power states of a plurality of appliances. Based at least in part on such solution, an estimation quality metric is derived. In another aspect, such metric can be exploited in a methodology for optimally placing additional power meters to increase the estimation certainty for individual appliances to a desired or intended level. Estimated power breakdown and energy breakdown—individually or collectively referred to as consumption breakdown—rely on measurements and numerical simulations, and can be evaluated in exemplary electrical network utilizing binary sensors. | 09-12-2013 |
20130268221 | ON-CHIP INTEGRATED CIRCUIT POWER MEASUREMENT CELL - A power measurement cell, or group of power measurement cells, for the calculation of the power consumption of one or more electrical signals, as well as monitoring electrical signals in an integrated circuit, are disclosed. Further, super cells for the automation of specialized functions associated with the calculation of power consumption of one or more electrical signals are also disclosed. Methods associated with the use of the one or more power measurement cells and for the use of super cells for the calculation of the power consumption of one or more electrical signals are also described. | 10-10-2013 |
20130268222 | Smoothing Power Output From a Wind Farm - A method for determining consistent wind power output includes obtaining forecasted wind power production, actual wind power production from a wind power producer, a variable price of power measurement, a power storage battery state and capacity measurement, and a penalty measurement for wind power change of rate, and analyzing the forecasted wind power production, the variable price of power measurement, the power storage battery state and capacity measurement, and the penalty measurement for wind power change of rate to determine a consistent rate at which wind to power is to be exported from the wind power producer to a grid. | 10-10-2013 |
20130275065 | METHOD FOR PREDICTING THE POWER AN ELECTROCHEMICAL ENERGY STORE CAN OUTPUT TO AN ELECTRICAL LOAD - In a method for predicting the electrical power an electrochemical energy store can output to a consumer, a processor device preferably processes at least one measurement from a plurality of measurements of the cell voltage depending on time in an information technological manner, said measurements being carried out previously on an electrochemical energy store of the same design which is subject to a plurality of discharges of the electrochemical energy store and has a power output that is constant over time and the measurements being stored in a digital memory device. | 10-17-2013 |
20130275066 | DIGITAL POWER METERING SYSTEM - Methods and systems for identifying the frequencies present in a power signal are provided. The systems and methods sample power signals and perform a transformation from the time domain to the frequency domain. | 10-17-2013 |
20130282315 | Asynchronous AC Measurement System - Accurate measurements of electrical power at various points of a power grid is becoming more important and, at the same time, is getting more difficult as the old power distribution model of a few, large power generating stations and a multitude of relatively linear loads is replaced by a newer model containing a multitude of smaller, and to some degree unpredictable power sources, as well as a multitude of not always linear and often smart (essentially also unpredictable) loads. Embodiments of the invention provide for high accuracy voltage, current and power measurements of quasi-stationary and stationary waveforms in single and multiple phase power systems. Precision AC voltage, current, phase, power and energy measurements in power networks may be measured with current ranges from 1 mA to 20 kA and voltage ranges from 1V to 1000 kV and in a frequency range from a few hertz to one hundred kilohertz. | 10-24-2013 |
20130289904 | Detecting Anomalies In Power Consumption Of Electrical Systems - A method for detecting power consumption anomalies. The method obtains two different time power series and compares them to generate a dissimilarity matrix. A dimensionality reduction equation is applied to the dissimilarity matrix to obtain a low dimensional embedding of the power data. A probability score of each of the time series being anomalous is then calculated. | 10-31-2013 |
20130289905 | DISTRIBUTION POWER FLOW ANALYSIS SYSTEM AND METHOD - A distribution power flow analysis system and method are provided. A first relationship matrix and a second relationship matrix are used to analyze distribution power flow. The first relationship matrix is a relationship between a node injection current matrix and a branch current matrix. The second relationship matrix is a relationship between a node mismatch matrix and the branch current matrix. The system and method are applicable to cases of adding a new node, impedance or parallel loop. Compared with other conventional methods, the system and method have good robustness, fast execution speed and low memory space requirement in power flow calculation of a distribution power system. | 10-31-2013 |
20130289906 | CIRCUIT FOR DISPLAYING ENERGY CONSUMPTION - A circuit is used for displaying the amount of electrical energy consumed by an electronic device. The circuit includes an analog to digital (A/D) converting circuit, a microprocessor connected to the A/D converting circuit, and a display connected to a microprocessor for displaying the energy consumed by the electronic device. | 10-31-2013 |
20130289907 | DISAGGREGATION APPARATUS - The invention relates to a disaggregation apparatus ( | 10-31-2013 |
20130297239 | Estimating Loss Rates of Links in Smart Grids - A method, apparatus and article of manufacture for estimating loss rates of links in a smart grid. The method includes identifying end-to-end passage rates from a source to each of multiple receiver and/or load meters in a smart grid, and estimating a loss in at least one link of the grid by identifying the sparsest solution of link loss rates that matches the end-to-end passage rates. Also, a system includes a memory, a processor coupled thereto, and software modules executing on the processor, including a monitoring module for monitoring power flow of receiver and/or load meters in a smart grid, a measurement collector module for collecting measurements to compute end-to-end passage rates from a source to each receiver and/or load meter, and a processing module for estimating a loss in a link of the grid by identifying the sparsest solution of link loss rates matching the end-to-end passage rates. | 11-07-2013 |
20130297240 | METHODS AND SYSTEMS FOR IMPROVED TIME COST AND ACCURACY OF ENERGY USAGE BASELINING - Systems, methods, and mediums generate an energy usage baseline. A method includes receiving historical energy usage data for a building. The method includes identifying a historical energy usage baseline as a function of temperature based on the historical energy usage data. The method includes receiving measurements for current energy usage for the building to form a set of energy usage measurements. The method includes associating the set of energy usage measurements with values for temperature for an area where the building is located. The method includes generating a correction factor for the historical energy usage baseline based on a comparison of the set of energy usage measurements with a portion of the historical energy usage baseline corresponding to the values for temperature associated with the set of energy usage measurements. The method includes generating an adjusted energy usage baseline by applying the correction factor to the historical energy usage baseline. | 11-07-2013 |
20130297241 | Estimating Loss Rates of Links in Smart Grids - A method for estimating loss rates of links in a smart grid includes identifying end-to-end passage rates from a source to each of multiple receiver and/or load meters in a smart grid, and estimating a loss in at least one link of the grid by identifying the sparsest solution of link loss rates that matches the end-to-end passage rates. Also, a system includes a memory, a processor coupled thereto, and software modules executing on the processor, including a monitoring module for monitoring power flow of receiver and/or load meters in a smart grid, a measurement collector module for collecting measurements to compute end-to-end passage rates from a source to each receiver and/or load meter, and a processing module for estimating a loss in a link of the grid by identifying the sparsest solution of link loss rates matching the end-to-end passage rates. | 11-07-2013 |
20130297242 | METHODS AND SYSTEMS FOR MEASUREMENT AND VERIFICATION WEIGHTING WITH TEMPERATURE DISTRIBUTION - Systems, methods, and mediums use temperature weighting in energy-usage measurements. A method includes identifying a number of days that each of a plurality of different temperatures occurred at a location during a period of time. The method includes identifying a baseline for initial energy usage at a building located in the location. The method includes receiving measurements for energy usage at the building. The method includes generating an expression for measured energy usage as a function of temperature by performing a regression analysis on the measurements for energy usage. The method includes identifying a difference between the baseline for initial energy usage and the expression for measured energy usage. The method includes generating a weighting for the difference between baseline energy usage and the measured energy usage at one or more temperatures based on the number of days the one or more temperatures occurred during the period of time. | 11-07-2013 |
20130311114 | Networked Device with Power Usage Estimation - A request for energy usage status is received by a networked device over a network. A set of power usage data is retrieved from a non-volatile memory located within the networked device. The set of power usage data, which includes information related to power usage of the networked device, was previously stored in the non-volatile memory in advance of positioning the networked device for normal use. A best estimate of the energy usage status of the networked device is calculated based, at least in part, on the set of power usage data retrieved from the non-volatile memory without measuring electrical parameters of a power source of the networked device during normal use. The best estimate of the energy usage status is then sent by the networked device over the network as a reply to the energy usage status request. | 11-21-2013 |
20130317770 | POWER STRIP AND POWER MEASUREMENT METHOD - A power strip includes: a first power line; a second power line between which and the first power line a power supply voltage is applied; a jack portion; a current meter configured to measure a current being supplied to an external electrical device from the jack portion; a first photocoupler including a first light emitting diode connected between the first power line and the second power line and configured to output a first output signal whose level is changed when the power supply voltage exceeds a first threshold; and a computing unit configured to calculate a power value by using instantaneous values of the current measured by the current meter and instantaneous values of the power supply voltage estimated from the length of a period when the level of the first output signal is changed. | 11-28-2013 |
20130325377 | SYSTEMS AND METHODS FOR MEASURING AND VERIFYING ENERGY USAGE IN A BUILDING - A computerized method of determining the end of a measurement and verification period of a building management system is provided. The method includes calculating, for a plurality of periods, a target amount of energy savings resulting from energy conservation measures in a building. The method further includes calculating, for a plurality of periods, a least amount of energy savings resulting from energy conservation measures in a building. The method further includes comparing the target amount to the least amount. The method further includes ending the measurement and verification period, before the end of a maximum measurement and verification period, when the least amount is greater than the target amount. The method further includes outputting an indication that the measurement and verification period has ended to at least one of a memory device, a user device, or another device on the building management system. | 12-05-2013 |
20130325378 | Predicting Energy Savings - A mechanism is provided for estimating energy/power consumption of a fixed-frequency operating mode while system is running in dynamic power management mode. For each time interval in a plurality of time intervals within a time period: a first processor identifies a modeled total nominal power value for at least one second processor during a current time interval, stores the modeled total nominal power value for the current time interval in a storage, identifies a dynamic power management mode power value for the at least one second processor in the data processing system during the current interval, and stores the dynamic power management mode power value for the current time interval in the storage. Responsive to the time period expiring, a comparison is produced of a plurality of modeled total nominal power values and a plurality of dynamic power management mode power values over the time period. | 12-05-2013 |
20140005964 | METHODS AND SYSTEMS FOR PREVENTION OF DATA CORRUPTION | 01-02-2014 |
20140012525 | POWER MEASURING APPARATUS AND OPERATING METHOD THEREOF - There are provided a power measuring apparatus capable of accurately obtaining metering information and being manufactured at low cost by storing the metering information in an internal flash memory and an operating method thereof. The power measuring apparatus includes: a controlling unit controlling processing of consumed power metering information; a flash memory storing the metering information according to the controlling of the controlling unit and storing an operating program with respect to the processing of the metering information; and a random access memory providing a substitution program substituting the operating program while the metering information is stored in a specific address of the flash memory. | 01-09-2014 |
20140019073 | METHOD AND APPARATUS FOR PROVIDING ESTIMATED POWER CONSUMPTION INFORMATION OF CONTENT - A method of providing estimated power consumption information when content is used, the method including receiving a command to select one of a plurality of content; receiving first device information indicating information about a first portable device of a first user who is to use the selected content; and providing power consumption information estimated when the first portable device uses the selected content, based on the first device information and a power consumption database generated by pre-measuring power consumption of the plurality of content in a predetermined reference device. | 01-16-2014 |
20140032139 | ELECTRONIC DEVICE AND METHOD - An electronic device comprises one or more functional units, each functional unit being clocked by a respective clock signal. The electronic device further comprises a monitoring unit for providing a real-time estimate of an electrical current consumed by the functional units. The monitoring unit provides the real-time estimate on the basis of characteristic signals. The characteristic signals may comprise one or more of said clock signals, or one or more clock generating signals used to generate said clock signals. The electronic device may further comprise a power regulator responsive to the real-time estimate. A method of estimating in real-time an electrical current consumed by one or more functional units is also described. | 01-30-2014 |
20140052394 | Systems and Methods of Input Power and Current Measurement - As disclosed herein, a PFC control device, may be used for power factor correction and for input power and current measurement simultaneously. To determine the input power, input voltage and input current are determined. These measurements may be performed using a current sensor and a voltage sensor, for example. In an example embodiment of the systems and methods of input power and current measurement disclosed herein, the current is measured after an electromagnetic interference (EMI) filter. The input voltage and input current should be sampled substantially simultaneously. The measured input current is adjusted due to a phase shift introduced in the current sense circuit. The input voltage and input current should be sampled substantially simultaneously. The input power is determined using the PFC input voltage and the adjusted input current. The total input current is determined using the PFC input current and the EMI filter reactive current. | 02-20-2014 |
20140067295 | TRACKING POWER STATES OF A PERIPHERAL DEVICE - During operation, an electronic device monitors data associated with different power states received from another electronic device via an interface circuit. Using the monitored data, the electronic device calculates a time duration that the other electronic device is in an active operating mode. Moreover, the electronic device determines power states of the other electronic device based on the calculated time duration and/or a time duration between times when data is received. Next, the electronic device calculates the power-consumption history of the other electronic device based on the determined power states and at least a model of power consumption in different power states of the other electronic device. By calculating the power-consumption history of the other electronic device, the electronic device may significantly improve the accuracy of a power-usage model for the other electronic device. | 03-06-2014 |
20140088895 | SYSTEMS AND METHODS FOR METERING AND ANALYZING ENERGY CONSUMPTION OF EVENTS WITHIN A PORTABLE DEVICE - System and methods to determine the energy consumption per event type from usage data of portable devices are described. An example method includes accessing battery usage data for a first portable device, the battery usage data comprising a plurality of measurements, the measurements including an energy usage by the first portable device during a first time period and an identification of software functions executed by the first portable device during the first time period, and determining at portion of the energy usage attributable to a first one of the software functions based on the measurements. | 03-27-2014 |
20140100801 | Intelligent Electronic Device and Method Thereof - An intelligent electronic device (IED) having a gain control unit adapted to selectively regulate operating ranges of output signals of a sensing circuit of the device is described. In one embodiment, the IED is a digital electric power and energy meter, which operating ranges for supply voltages and supply currents of electrical services may be adjusted to match pre-determined ranges for input signals of a data acquisition system or a data processing module of the meter. | 04-10-2014 |
20140122001 | POWER MEASUREMENT SYSTEM FOR MULTIPLE POWER SOURCES AND METHOD OF OPERATING THE SAME - A power measurement system for multiple power sources includes a plurality of measurement apparatuses, a multiplexer, and a processing module. Each of the measurement apparatuses has a sense resistor and a sense amplifier. The sense resistor is electrically connected to a power source at one terminal thereof and electrically connected to a load at the other terminal thereof. The sense amplifier receives a voltage difference across the sense resistor, amplifies the voltage difference by a gain value, and outputs an amplified sense voltage. The multiplexer receives the amplified sense voltages and outputs one of the amplified sense voltages. The processing module receives the one amplified sense voltage outputted from the multiplexer and calculates an output power of the power source according to the one amplified sense voltage. Furthermore, a method of operating the power measurement system is provided. | 05-01-2014 |
20140122002 | POWER CONSUMPTION DETECTOR AND MOTHERBOARD AS WELL AS FAN BOARD USING THE SAME - A power consumption detector includes a first resistor, an amplification unit, a voltage divider and a processing unit. A first end of the first resistor, coupled to the object, receives a current from the object during working. An amplification unit has a first input end coupled to a second end of the first resistor and a second input end receiving the working voltage. The amplification has an output end generating an amplification signal. A voltage divider, coupled to the output end of the amplification unit, is used for receiving the amplification signal and generating a voltage division signal. A processing unit, coupled to the voltage divider, is used for receiving the voltage division signal, calculating the current flowing through the first resistor and power consumption of the object upon the current and the working voltage. The power consumption detector is applied to a motherboard or a fan board. | 05-01-2014 |
20140122003 | PREDICTION METHOD FOR SUN-TRACKING TYPE PHOTOVOLTAIC SYSTEM - A method for predicting power generation for a sun-tracking type photovoltaic system. A calculating device may perform the prediction method and may comprise the steps of: forming a mathematical relationship that relates the variation in sunlight incident angle of powers for sun-tracking type and fixed-type photovoltaic systems to at least one electrical characteristic of the photovoltaic system; accumulating ratios between the power production rate of the sun-tracking type photovoltaic system and the fixed-type photovoltaic system; and according to a predetermined cost estimation structure, providing an analysis for determining whether a sun-tracking type photovoltaic system should be installed. | 05-01-2014 |
20140129160 | SYSTEMS AND METHODS FOR REDUCING ENERGY USAGE - A system for detecting individual appliance energy loads from a building composite load profile includes an electric meter to capture building composite load profile; a detector coupled to the meter to detect transitions in the load profile to determine an appliance state machine for each appliance; a clusterizer to detect clusters of patterns in the load profile; and an analyzer coupled to the detector to receive the transitions and appliance state machines from the detector, the analyzer matching each transition to a predetermined appliance state machine to disaggregate the building composite load profile into individual appliance energy loads. | 05-08-2014 |
20140129161 | INTERVAL ANALYSIS TOOL FOR ENERGY CONSUMPTION - A system and method for analyzing energy savings for a building is provided. The method includes receiving a schedule of occupied days, an occupancy behavior profile and historical energy usage data from which an hourly interval usage is determined. A set of occupancy thresholds is determined by season. Occupied days are determined from the set of occupancy thresholds and the hourly interval usage. The hourly interval usage is analyzed to determine occupied energy consumption in hourly intervals, occupied start and stop time savings, mechanical equipment savings and temperature setpoint savings during an occupied day. The hourly interval usage is also analyzed to determine unoccupied energy consumption in the hourly intervals and refrigeration savings, mechanical equipment savings, computer equipment savings, parking lot lighting savings, hallway lighting savings and temperature setpoint savings during an unoccupied day. Energy consumption, energy savings, operational comparisons and monetary savings are reported. | 05-08-2014 |
20140149056 | MULTI-MODAL DATA IMPROVEMENT FOR POWER DISAGGREGATION SYSTEMS - The present invention relates to a method and apparatus for disaggregation of energy consumption in a power distribution system. The basic idea is to look at the overall energy consumption and recognize the contributions of each single electrical device ( | 05-29-2014 |
20140163908 | ELECTRICAL DEVICE MONITORING APPARATUS, METHOD THEREOF AND SYSTEM - In one embodiment, a calculator calculates power consumed by devices and a feature at a time interval on a current and/or a voltage of a power supplier, a generating unit calculates a difference between the power consumption at the starting time and each power consumption and a difference between the feature at the starting time and each feature, in a first period from the starting time, for each device, creates, for each combination of the devices, a set of learning data including power consumption differences of devices therein and a sum of feature differences of the devices therein, generates a model to estimate, as a function of a first variable indicating the sum of feature differences, second variables indicating power consumption differences of each device, a estimating unit estimates power consumption of each device based on the model and the feature, the feature being given to the first variable. | 06-12-2014 |
20140180613 | INTELLIGENT ELECTRONIC DEVICE HAVING A TOUCH SENSITIVE USER INTERFACE - An intelligent electronic device (IED) having a touch sensitive user interface is provided. The intelligent electronic device includes a housing; at least one sensor coupled to the electric circuit and configured to measure at least one parameter of the electrical circuit and generate at least one analog signal indicative of the at least one parameter; at least one analog to digital converter coupled to the at least one sensor and configured to receive the at least one analog signal and convert the at least one analog signal to at least one digital signal; at least one processor configured to receive the at least one digital signal and calculate at least one power parameter of the electrical circuit; and an user interface configured to receive input from a user, the user interface including at least one touch sensitive sensor configured to detect the user input. | 06-26-2014 |
20140188410 | Methods for Photovoltaic Performance Disaggregation - The present invention provides methods of calibrating photovoltaic model parameters to improve modeling accuracy of photovoltaic power product ion, methods for determining as-built photovoltaic production expectations, methods for determining weather-adjusted photovoltaic performance, methods for determining and quantifying energy losses due to equipment mismatch, methods for determining and quantifying energy losses due to snow, methods for determining and quantifying energy losses due to equipment downtime, methods for determining and quantifying energy losses due to shading, methods for determining and quantifying energy losses due to soiling and equipment degradation. | 07-03-2014 |
20140195178 | ESTIMATING COMPONENT POWER USAGE FROM AGGREGATE POWER USAGE - A method for estimating component power usage using aggregate power usage data are provided in the illustrative embodiments. A power estimation model is received, the model correlating a factor of the component with an aggregate power consumption of a set of components during a period, the component being a member of the set of components, the component being a hardware device operating in the data processing environment and consuming electrical power, the factor being a characteristic of the component related to the consumption of the electrical power in the component. A value of the factor at a determined time is received. The value of the factor is applied to the power estimation model to generate an estimate of electrical power consumed by the component. The estimate is output as the estimated power usage of the component when the factor attains the value. | 07-10-2014 |
20140207398 | Transient Normalization for Appliance Classification, Disaggregation, and Power Estimation in Non-Intrusive Load Monitoring - Various apparatuses and methods are provided for monitoring individual appliance energy consumption using non-intrusive load monitoring (NILM). For example, one method includes detecting an ON event and an OFF event within a segment of streaming power input and extracting the streaming power input associated with the ON event in response to detecting the ON event. The extracted streaming power input includes a waveform associated with the ON event recorded over a time frame. The method also includes normalizing the waveform to reveal one or more unique variations and classifying the normalized waveform based on the one or more unique variations. The method further includes matching the ON event with a correlating OFF event based at least on the classification of the normalized waveform and calculating power consumed from a time of the ON event to a time of the OFF event. | 07-24-2014 |
20140236506 | Method for Detecting Power Theft in a Power Distribution System - A method detects power theft in a branch of a distribution system by distinguishing between technical losses that are inevitable during the course of normal operation of the system, and non-technical losses that can be attributed to power theft. The method assumes a specific circuit corresponding to that branch, collects data for energy consumed and currents at regular intervals by means of a smart or traditional power meter, estimates the likely resistances of the lines connecting the consumption points to the distribution transformed by means of least squares regression, and uses the estimated resistances to predict technical losses in future time intervals. By comparing the total power losses measured during future intervals with the estimates of the technical losses, the amount of non-technical losses can be estimated, and theft can be signaled when this amount is unusually high. | 08-21-2014 |
20140236507 | Method for Determining Power Consumption of Loads in Ungrounded Power Distribution Systems - A method determines power consumption of a load in a feeder section of an ungrounded power distribution system. Borders of the feeder section are defined by an importing device connecting the feeder section to an upstream feeder section, and by at least one exporting device connecting the feeder section with a downstream feeder section. A power consumption of each load is represented as a product of a scaling factor and a base power defined by a load profile of the load. A power flow of the feeder section is solved using the power consumptions of the loads to produce an active power for each phase of the importing device. A target active power for each phase of the importing device is determined using measurements at the importing device, and the scaling factors are updated based on a difference between the active power and the target active power. | 08-21-2014 |
20140244189 | System For Achieving Real-Time Monitoring and State Estimation in Power Distribution Networks - A method of placing PMUs for distribution networks having a plurality of nodes, the network comprising: a feeder line attached to a source at a source node and at least one node with a lateral branching from the node on the feeder line, the method comprising the steps of: placing a VPMU and CPMU directly after the source node; locating a next node downstream along the feeder line; and for the located next node, determining a type of node located, a type of line between the source node and the located next node and whether the located next node is an end node of the feeder line; wherein if the located next node is branching node, placing a CPMU on all laterals between the branching node and an end of the lateral; determining if any of the located next nodes are attached to a dispersed generator and placing a CPMU. | 08-28-2014 |
20140244190 | POWER USAGE ANALYSIS - A user device is configured to receive information that a display screen, of the user device, is turned on; and receive information that an application is initiated or used on the user device during a time period that commences based on the display screen being turned on. The user device is configured to determine an amount of power used by the display screen; determine power usage information that identifies a portion of the amount of power that is attributable to the application based on the application being initiated during the time period; and store the power usage information. | 08-28-2014 |
20140244191 | CURRENT USAGE ESTIMATION FOR ELECTRONIC DEVICES - Various embodiments are described herein for a system and method for estimating current consumption for an electronic device by obtaining log data comprising a record of at least some activities of the electronic device during a selected time period, parsing the log data into a plurality of component digests, estimating current consumption values for the component digests based on component signatures of the component digests, a current consumption model and a machine learning technique; and processing the estimated current consumption values to estimate current consumption data for the electronic device. | 08-28-2014 |
20140278165 | SYSTEMS AND METHODS FOR ANALYZING ENERGY CONSUMPTION MODEL DATA - A building's energy consumption may be modeled using weather data, utility billing data, or other data regarding the building. The resulting model data may be analyzed to detect a shift in the model data, which may indicate the presence of a fault condition. Changes to the model's coefficients that would result from an upgrade, energy conservation measure, or other action may also be used to predict the resulting Energy Star score for the building. | 09-18-2014 |
20140297209 | METHOD, SENSOR AND SYSTEM FOR ANALYZING APPLIANCES IN A POWER LINE NETWORK - A method for analyzing appliances in a power line network, comprises obtaining an electrical characteristic of the power line network, using a sensor that is connected to the power line network, and detecting an appliance connected to the power line network on the basis of the electrical characteristic of the power line network and a model profile. The model profile is based on electrical characteristics of one or more candidate appliances and on a configuration of the power line network. | 10-02-2014 |
20140309955 | METHOD AND SYSTEM FOR DETERMINING POWER CONSUMPTION - For determining a power consumption of electrical circuitry, at least one device executes at least a portion of a software application having an effect on a current through the electrical circuitry. A current is generated through a transistor for mirroring the current through the electrical circuitry. In response to a control word, a reference current is generated. In response to executing the portion of the software application, the control word is varied to determine a value thereof that causes the reference current to approximately equal the current through the transistor, in a manner that correlates the effect of the portion of the software application on the current through the electrical circuitry. | 10-16-2014 |
20140309956 | UTILITY METER HAVING COMPRESSED DATA LOGGING - A method for storing information within a utility meter includes generating in a processing circuit first information regarding a metered quantity delivered to a load corresponding to a first period of time. The method also includes obtaining a first value associated with one of a plurality of predetermined ranges of values in which the first information falls. The method further includes generating in a processing circuit a second value representative of a numerical position of the first information within the one of the plurality of predetermined ranges of values. The first value and the second value are stored in a memory. | 10-16-2014 |
20140358458 | SYSTEMS AND METHODS FOR ESTIMATING INPUT POWER OF AN ELECTRIC MOTOR - A method of estimating an input power of a motor comprises determining an output power of the motor; determining a speed of the motor; calculating a scaling factor as a function of the speed of the motor; and estimating the input power as a function of the scaling factor and the output power. | 12-04-2014 |
20140365149 | Visual Analytics of Spatial Time Series Data Using a Pixel Calendar Tree - Example embodiments relate to providing visual analytics of spatial time series data. In example embodiments, sensors may be located at regions within a building for collecting sensor data at regular time intervals. A sensor hierarchy can be generated including sensor nodes that are hierarchically arranged according to a physical infrastructure of the building, where each of the sensor nodes corresponds to a sensor. Sensor data can be obtained from the sensors, and a pixel calendar tree can be generated based on the sensor data and the sensor hierarchy, where the pixel calendar tree is recursively subdivided into tree portions according to a proportion of the sensor data attributable to each of the sensors. The pixel calendar tree can be displayed, where each of the tree portions includes time series sensor data of a corresponding region that is generated based on the sensor data. | 12-11-2014 |
20150046104 | TECHNIQUES FOR UTILIZING ENERGY USAGE INFORMATION - Techniques for energy consumption monitoring and analysis. Energy consumption of one or more energy consuming devices corresponding to a user is monitored. User profile information and user statistical information is utilized to analyze the monitored energy consumption to generate a personal energy usage profile for the user. The personal energy usage profile is transmitted to a computing platform associated with the user. | 02-12-2015 |
20150073736 | METHOD AND SYSTEM FOR AUTOMATED ASSOCIATION OF DEVICES WITH ELECTRICITY METERS - A system, method and device for automated association of a device and a power meter. For example, the method includes determining a power profile for a power meter, determining device-specific power information for each of a plurality of devices, comparing the device-specific power information for each of the plurality of devices against the power profile for the power meter, determining, based upon the comparing, which of the plurality of devices is associated with the power meter, and recording the power meter and its associated device in a network management record. The techniques may be extended to include associating multiple multifunction print devices to one of a plurality of power meters based upon power log and job arrival information for the print devices as compared to power profile information from the power meters, thereby providing for automated associated of the devices and the power meters without unnecessary human interaction. | 03-12-2015 |
20150073737 | POWER MONITORING APPARATUS AND POWER MONITORING METHOD - A characteristic of a solar power generation device in a customer facility is calculated. A power monitoring apparatus includes an acquisition unit and a calculation unit. The acquisition unit acquires, for a first electrical facility including a first solar power generation device and a first load device, a first insolation signal indicating change of insolation to the first solar power generation device over time and a first load signal indicating change of a load, as a combination of the first solar power generation device and the first load device, over time, from a storage device. The calculation unit calculates a first power generation characteristic indicating a characteristic of a power generation amount of the first solar power generation device with respect to the first insolation signal, based on the first insolation signal and the first load signal. | 03-12-2015 |
20150088441 | ENERGY USAGE ESTIMATION DEVICE AND ENERGY USAGE ESTIMATION METHOD - A power measure calculates, based on a current and a voltage measured at a predetermined location in a power supply line, active power and apparent power for each predetermined time period based on utilization of plural kinds of electric facilities connected to the power supply line. A data memory accumulates and stores data regarding the active power and the apparent power calculated by the power measure in a time-series manner. A variation detector analyzes data regarding the active power by what corresponds to a predetermined time period and stored in the data memory to detect a time slot at which there is an operation change in any one of the electric facilities. A distribution estimator calculates, when the variation detector detects the time slot, a power factor in the time slot, and estimates power consumption for each kind of the electric facilities in the time slot. | 03-26-2015 |
20150094969 | PREDICTING PRODUCTION OF PHOTOVOLTAIC SYSTEMS - The present invention is directed to methods, systems, and devices for predicting production of a photovoltaic (PV) system. A method may include establishing a reference performance model for a reference PV system at a reference site. Further, the method may include establishing a performance factor for an installed PV system based on configuration parameters of the installed PV system, measurements of the installed PV system, weather data at an installation site of the installed PV system and a comparison of the measurements of the installed PV system to the reference performance model. The method may also include predicting production of the installed PV system based on the performance factor, cumulative weather data and a time dependent performance ratio. | 04-02-2015 |
20150100258 | BAND POWER COMPUTATION DEVICE AND BAND POWER COMPUTATION METHOD - A band power computation device with which the amount of calculation required to compute channel power is reduced, and with which it is possible to obtain channel power with the same precision as when the channel power is obtained from the entire input signal. With this device, a subspace extraction unit ( | 04-09-2015 |
20150112617 | REAL-TIME MONITORING AND ANALYSIS OF ENERGY USE - A method for analyzing energy use. In some examples, energy data can be received from an energy meter, one or more energy consuming devices can be identified in the energy data, one or more insights can be generated based on at least the identification and a portion of the energy data, and information relating to at least the portion of the energy data can be generated for transmitting to a device, the generation being based on at least the one or more insights and the identification. | 04-23-2015 |
20150112618 | Apparatus and Methods Thereof for Power Consumption Measurement at Circuit Breaker Points - Apparatus and methods are provided for the measurement of power consumption at points of interest, such as circuit breakers, machines, and the like. Accordingly, means are provided for measurement of power consumption for each electrical sub-network that is controlled by a circuit breaker. Each apparatus is enabled to communicate its respective data, in an environment of a plurality of such apparatuses, to a management unit which is enabled to provide finer granularity power consumption profiles. Challenges of measuring relatively low supply currents, wireless operation in an environment of a large number of apparatuses, and self-powering are addressed. | 04-23-2015 |
20150120223 | DYNAMIC ONLINE ENERGY FORECASTING - Examples of dynamic online energy forecasting are provided herein. An energy forecast request is received. An initial energy forecast is calculated in response to the request. One or more of a plurality of energy forecast model instances are selected as candidate forecast model instances. At least one of the candidate instances are transformed into an improved forecast model instance having greater accuracy than the candidate forecast model instance. The transformation is accomplished by determining alternative values for at least some parameters of an energy forecast model of the candidate forecast model instance. An improved energy forecast having a greater accuracy than the initial forecast can then be calculated using the improved forecast model instance. | 04-30-2015 |
20150120224 | SYSTEMS AND METHODS FOR PROCESSING DATA RELATING TO ENERGY USAGE - Processing of data relating to energy usage. First data relating to energy usage is loaded for analysis by an energy management platform. Second data relating to energy usage is stream processed by the energy management platform. Third data relating to energy usage is batch parallel processed by the energy management platform. Additional computing resources, owned by a third party separate from an entity that owns the computer system that supports the energy management platform, are provisioned based on increasing computing demand. Existing computing resources owned by the third party are released based on decreasing computing demand. | 04-30-2015 |
20150134279 | ESTIMATING OPERATION STATE OF INDIVIDUAL LOAD - The disclosure is related to a method for estimating an operation state of each individual load in a target electric power consumer. The method may include obtaining an operation state table of a target electric power consumer upon generation of a predetermined event, collecting predetermined electricity parameter values in response to a request to estimate an operation state of each individual load, and estimating operation states of individual loads in the target electric power consumer based on the obtained operation state table and the collected predetermined electricity parameter values. | 05-14-2015 |
20150142348 | POWER CALCULATING METHOD ADAPTED TO WIRELESS POWER SYSTEM - A power calculating method, adapted to a wireless power system, includes the following steps: first, multi-sampling input or output current of a regulator in the power receiving end, and performing root-men-square calculation accordingly to derive a current RMS value; second, multi-sampling input or output voltage of the regulator, and performing a root-men-square calculation accordingly to derive a voltage RMS value; third, multiplying the voltage RMS value to the current RMS value and a cosine of an angle to derive a regulating power value; fourth, dividing the regulating power value by a power efficiency value to derive a receiving power value; finally, transmitting the receiving power value to a power transmitting end of the wireless power system for performing foreign object detection. | 05-21-2015 |
20150142349 | METHOD FOR DETERMINING A STATE OF ENERGY OF AN ELECTROCHEMICAL ACCUMULATOR, DEVICE, MEDIUM, AND COMPUTER PROGRAM - The method for estimating a final state of energy SOEf of an electrochemical accumulator is carried out from a set of quadruplets of values relating to operating points of the electrochemical accumulator including power (P), temperature (T), state of energy (SOE) and remaining energy (En). Said method implementing at least one interpolation step. | 05-21-2015 |
20150309093 | METHOD FOR AUTOMATICALLY MEASURING POWER CONSUMPTION OF MOBILE DEVICE CORRESPONDING TO EXECUTING GIVEN EVENT - A method to automatically measure power consumption of mobile devices corresponding to executing a given event is provided. The computing device instructs mobile devices to automatically execute a given event and collects data associated with power consumption, including current consumption measurements, from current meter. The computing device automatically selects the range of current consumption measurement data by predetermined time period or by pulse-shaped current consumption measurement. The computing device further measures power consumption by identifying ranges of all pulse-shaped current consumption measurements in a given time frame for mobile device to execute a given event and selecting the range having the highest average current consumption or the range generated at the time mobile device executes a given event. | 10-29-2015 |
20150338446 | INTELLIGENT ELECTRONIC DEVICE HAVING A MEMORY STRUCTURE FOR PREVENTING DATA LOSS UPON POWER LOSS - An intelligent electronic device is provided including, inter alia, a processing unit configured to calculate energy consumed by at least one load and accumulate the calculated energy in a first volatile memory; the processing unit being configured to iteratively copy the accumulated energy from the first volatile memory to a first non-volatile memory after a first predetermined time period and copy the accumulated energy from the first volatile memory to a second non-violate memory after a second predetermined time period, wherein the first predetermined time period is longer than the second predetermined time period. The processing unit is further configured to copy the accumulated energy from the second non-violate memory to the first volatile memory upon startup or reset of the intelligent electronic device to avoid loss of data. | 11-26-2015 |
20150369847 | MANAGING ENERGY IN A MULTI-DWELLING UNIT - Methods, devices, and systems for managing energy in a multi-dwelling unit are described herein. One method includes determining an energy consumption of each of a plurality of heating, ventilation, and air conditioning (HVAC) units, wherein each of the plurality of HVAC units is associated with a different space of a multi-dwelling unit having a plurality of spaces, normalizing the energy consumption of each of the plurality of HVAC units, and ranking the normalized energy consumptions. | 12-24-2015 |
20150377937 | Calculating Power Consumption of Electonic Devices - A power consumption measurement method for operating an electronic component during an interval of time includes: logging power states that the component adopts during the interval, interrogating the log to determine the amount of time that the component spent in each power state during interval, and multiplying the rated power consumption for each state by the amount of time spent in each respective state. The power consumptions for each of the states are summed to determine a total power consumption of the component during the interval. Logging the power states may be achieved by counting command line instructions of different types, thus identify the beginning and end of each power state, during the interval. The method may be used to measure and/or benchmark the actual power consumption of a DDR RAM module. An apparatus for carrying out the method is also disclosed. | 12-31-2015 |
20160047848 | METHOD FOR OBTAINING PLUG COMBINATION OF DETECTING APPARATUS AND METHOD FOR OBTAINING POWER LINE TOPOLOGY AND ELECTRONIC APPARATUS USING THE SAME - A method for obtaining plug combination of detecting apparatus, a method for obtaining power line topology and an electronic apparatus using the same are provided. The method for obtaining plug combination of detecting apparatus includes the following steps: retrieving a first amount of at least one detecting apparatus and a second amount of at least one socket; generating plug combinations between the at least one detecting apparatus and the at least one socket; calculating a total socket relationship value according to the second amount; setting specific plug times and a specific socket relationship value of a specific plug combination according to the first amount; and finding a candidate plug combination among reference plug combinations according to the specific socket relationship value, the total socket relationship value and a distance between the specific plug combination and each of the reference plug combinations. | 02-18-2016 |
20160061869 | RELIABLE PREDICTION OF ENERGY CONSUMPTION - A basic materials industry facility having a type 1 electrical consumer with at least three working points that each have a respective expected power consumption is disclosed. The facility can also have type 2 or type 3 consumers, each having only two working points or a single expected power consumption assigned to them, respectively. Schedule diagrams for type 1 and 2 consumers define their working points as a function of time, taking into account technological criteria for the operation of the facility, and are continuously updated using actual energy consumption data in such a way that the expected total energy consumption between starting time point and a predefined end time point does not exceed a maximum permissible total energy consumption. Preferably the consumers are controlled so that the expected total energy consumption is brought close to the maximum permissible energy consumption. | 03-03-2016 |
20160077139 | METHODS, SYSTEMS AND APPARATUS FOR POWER MONITORING - Methods, systems, and apparatus for monitoring an electrically powered element are described. One or more power usage measurements for one or more elements may be obtained and analyzed to determine a behavior of a user of one or more of the elements. An action and/or a recommendation based on the analysis of one or more of the power usage measurements is determined. | 03-17-2016 |
20160084892 | METHOD AND A CONTROL UNIT FOR VALIDATING AN ELECTRIC POWER PLANT - A method for validating an electric power plant capability as an electric service provider is provided. The method includes receiving a plurality of input data records from the plurality of renewable energy devices, respectively, the input data records respectively defining a plurality of device capabilities associated with at least one electrical service which can be provided by the renewable energy devices to the electric distribution grid; estimating internal power losses of the electric power plant; using the input data records and the internal power losses for calculating an output data record defining an overall plant capability for the service; communicating the output data record to an operator of the electric distribution grid; and receiving a validation signal from the operator of the electric distribution grid. | 03-24-2016 |
20160103163 | UTILITY METER HAVING DATA LOGGING WITH POWER LOSS RECOVERY - A method for storing information within a utility meter that includes storing a data stream comprising a plurality of data values regarding a metered quantity delivered to a load corresponding to a plurality of time periods, wherein the plurality of data values are stored sequentially based on their corresponding time periods. The method also includes responsive to a power outage, inserting into the data stream a time stamp corresponding to a time period in the plurality of time periods in which the power outage occurred. | 04-14-2016 |
20160109492 | METHOD AND SYSTEM FOR ANALYSING ELECTRICITY CONSUMPTION - A method for analysing the consumption of electricity of a site equipped with a plurality of items of electrical equipment of different kinds, comprising at least one sensor for the periodic measurement of the current and/or voltage on at least one of the electrical phases upstream of the network supplying the site, as well as a computer for carrying out processing said method comprising: sampling at least the current signal; applying a Fourier transform to each fundamental period of the current signal; smoothing of said transformed signal; forming a database of signatures; recording, during a long period, candidate signatures liable to be associated with a variation in consumption of one of said items of equipment; and next using said database of reference signatures for qualifying the events occurring on said network. | 04-21-2016 |
20160116512 | METHOD AND SYSTEM FOR MONITORING ENERGY CONSUMPTION - A method and system for monitoring energy consumption is provided. The method for monitoring energy consumption estimates a number of people in a room based on an indoor CO | 04-28-2016 |
20160131688 | DETERMINING AN ORIENTATION OF A METERING DEVICE IN AN ENERGY GENERATION SYSTEM - A method comprising requesting power measurement data from a power meter during a predetermined time period, receiving the power measurement data, associating a negative coefficient with the power measurement data if the power measurement is less than zero, associating a positive coefficient with the power measurement data if the power measurement is equal to or greater than zero, and calculating a power measurement for the power generation site based, in part, on the associated coefficients. The power meter can be configured to measure power usage from the EG site including power provided by an electrical utility grid and an EG system at the EG site. The power measurement data may include a first power measurement corresponding to a first phase of power and a second power measurement corresponding to a second phase of power. | 05-12-2016 |
20160139188 | METHOD AND SYSTEM FOR ANALYSIS OF ENERGY SAVINGS IN AN ELECTRICAL NETWORK - A method for analysis of energy savings in an electrical network includes obtaining measurements of a plurality of measurement devices linked to loads of the electrical network over a first period of time. A unified signature that characterizes the recorded measurements during the first period of time is calculated. Measurements of the plurality of measurement devices in the electrical network are obtained over a second period of time after introduction of a modification into the electrical network. A unified signature that characterizes the recorded measurements during the second period of time is calculated. The unified signature that characterizes the measurements during the second period of time is compared with the unified signature that characterizes the measurements during the first period of time to calculate energy savings resulting from introduction of the modification. | 05-19-2016 |
20160146868 | INTELLIGENT ELECTRONIC DEVICE AND METHOD THEREOF - An intelligent electronic device (IED) having a gain control unit adapted to selectively regulate operating ranges of output signals of a sensing circuit of the device is described. In one embodiment, the IED is a digital electric power and energy meter, which operating ranges for supply voltages and supply currents of electrical services may be adjusted to match pre-determined ranges for input signals of a data acquisition system or a data processing module of the meter. | 05-26-2016 |
20160149489 | Switching Voltage Regulator Input Power Estimation - An estimate of voltage regulator input power is provide by estimating output power of the voltage regulator based on output voltage and output current of the voltage regulator, estimating power loss of the voltage regulator and estimating input power of the voltage regulator based on the estimated output power and the estimated power loss. | 05-26-2016 |
20160154038 | MONITORING APPARATUS, MONITORING METHOD, AND STORAGE MEDIUM | 06-02-2016 |
20160169948 | METHOD AND APPARATUS FOR MEASURING POWER IN MOBILE DEVICES TO MINIMIZE IMPACT ON POWER CONSUMPTION | 06-16-2016 |
20160178676 | MOBILE DEVICE TESTER FOR PRECISE INDUCTIVE POWER MEASUREMENT AND CALIBRATION UNIT THEREFOR | 06-23-2016 |
20160202340 | SYSTEM AND METHOD FOR MONITORING ELECTRICAL POWER USAGE IN AN ELECTRICAL POWER INFRASTRUCTURE OF A BUILDING | 07-14-2016 |
20160252550 | ASYNCHRONOUS AC MEASUREMENT SYSTEM | 09-01-2016 |
20170234914 | SYSTEM FOR MONITORING ELECTRIC ENERGY | 08-17-2017 |