| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 324113000 | Recording | 19 |
| 20090179631 | Device for detecting voltage disturbance - At least one embodiment of the present invention provides a method for detecting voltage disturbance. In at least one embodiment the method includes storing the digitized point values of a voltage reference waveform; detecting actual voltage values, and converting the actual voltage values by digitization into point values of the actual voltage which are in one-to-one correspondence with the point values of the reference waveform; comparing the point values of the actual voltage with the corresponding point values of the reference waveform; judging that a voltage disturbance occurs if, for N successive points, the differences between the point values of the actual voltage and the corresponding point values of the reference waveform are all greater than a predetermined disturbance threshold, wherein N is an integer greater than 0. A technical solution of at least one embodiment of the present invention improves the response speed of the detection, and shortens the response time. At least one embodiment of the present invention also provides a voltage disturbance detecting device for applying the method for detecting voltage disturbance. | 07-16-2009 |
| 20090201011 | Apparatus, circuit and method of monitoring circuit characteristic - An apparatus includes a current source, a current monitor circuit which monitors a current amount of the current source, and outputs a current amount signal corresponding to the current amount being monitored, a counter circuit which counts a count value based on the current amount signal, the count value corresponding to a period being taken until when the current amount reaches a predetermined value, and a control circuit which modifies an operation parameter for operating a circuit unit according to the count value. | 08-13-2009 |
| 20100007333 | WIDE AREA PROTECTION CONTROL MEASUREMENT SYSTEM AND METHOD - The present invention provides a wide area protection control measurement system and method which excels in economy, reliability and expandability, in which applied arithmetic operation functions for protection, control and measurement can be freely added and changed, without adding or changing power monitoring terminals to be installed in the electric-supply station. The wide area protection control measurement system is configured from N number of power monitoring terminals | 01-14-2010 |
| 20110121816 | SURGE CURRENT DETECTION DEVICE - A protection element (e.g., an arrester) protects a piece of equipment to be protected, from surge currents line terminals and an earth terminal. Surge current detection devices are provided on respective conductors connected to the arrester. Each of the surge current detection devices is to detect the surge current penetrated into a conductor for a short period of time, and includes a magnetic flux concentration member by which a magnetic flux produced by the penetrated surge current is concentrated in a given detection area at a high density, and a ferromagnetic material sheet positioned on the given detection area. The ferromagnetic material sheet includes a recording layer which is able to record and erase the penetration state of the surge current. A plurality of microcapsules are arranged in the recording layer, and each of the microcapsules contains a suitable liquid, and a plurality of magnetic particles suspended in the suitable liquid. An orientation state of the magnetic particles is varied by the concentrated magnetic flux, and can be visually recognized. | 05-26-2011 |
| 20110181270 | Power supply controlling apparatus, and non-transitory computer readable recording medium - A power supply controlling apparatus including: a measurement portion that measures electric power information concerning electric power supplied to another apparatus, a storing control portion that stores the electric power information measured by the measurement portion and measurement time when the electric power information is measured, into a volatile storage, and stores the electric power information and the measurement time stored into the volatile storage, into a nonvolatile storage in desired timing; and a supplement portion that, when a first power supply is turned off and turned on again, supplements to the volatile storage electric power information and time concerning electric power assumed to be supplied to the another apparatus between final measurement time in a plurality of pieces of measurement time stored in the nonvolatile storage and time when the first power supply is turned on again. | 07-28-2011 |
| 20120262151 | SENSOR ASSEMBLY, SENSOR CONTROLLER AND CURRENT-MEASURING CIRCUIT - A sensor assembly for measuring an intensity of a current includes a first sensor apparatus configured to record an intensity of the electrical current with contact, a second sensor apparatus configured to record an intensity of the electrical current, the second sensor apparatus having a common measurement range with the first sensor apparatus, and a first analog-digital converter configured to convert analog measured values into digitized measured values. The first sensor apparatus, the second sensor apparatus and the first analog-digital converter are arranged on a common circuit carrier. | 10-18-2012 |
| 20120286770 | LIGHTING SYSTEMS - A lighting system is disclosed having a plurality of luminaires in which the energy usage of each luminaire can individually be metered using a luminaire controller having a metering circuit. | 11-15-2012 |
| 20130113462 | Device for Measuring Electromagnetic Field Intensity - The invention relates to gas-discharge electrical instrumentation technology. The device for measuring electromagnetic field intensity comprises a measuring instrument for recording the glow of a gas discharge and a gas-discharge chamber that is formed between electrodes | 05-09-2013 |
| 20130127444 | APPARATUS AND METHOD FOR DISTINGUISHING BETWEEN TACK-WELDING AND WELDING - An apparatus and method for distinguishing between tack-welding and welding are provided. The apparatus for distinguishing between tack-welding and welding includes: a current sensor configured to detect arc current of a welder; and a distinguish control unit configured to distinguish whether a welding operation performed by the welder is tack-welding or welding based on the arc current detected by the current sensor for a predefined period of time. Accordingly, the amount of work performed by a welding worker can be fairly and accurately evaluated. | 05-23-2013 |
| 20130200880 | METHOD AND SYSTEM FOR DETECTION OF STANDBY STATUS IN LINEAR AND NON-LINEAR CHARGES CONNECTED TO THE ELECTRICITY MAINS AND AUTOMATIC DISCONNECTION THEREOF - The method permits the detection of ‘standby’ state’ in linear and non-linear loads connected to the power grid and their automatic disconnection, and comprises at least the detection of the normal operating state of at least one load by means of detection, and obtaining the maximum value of the current in said operating state for the determination of the ‘standby state’ of the at least one load. | 08-08-2013 |
| 20130214763 | POWER CONTROL DEVICE AND POWER CONTROL METHOD - Used electric energy is collected while maintaining accuracy. | 08-22-2013 |
| 20130234699 | POWER SUPPLY MONITORING SYSTEM AND METHOD THEREOF - A power supply monitoring system for monitoring power supplied to electronic components is disclosed. The power supply monitoring system includes a monitoring bus, a monitoring module, an interrupt module, and a data storage module. The monitoring bus is connected to electronic components. The monitoring module monitors variations of levels of power supplied to the electronic components via the monitoring bus. The interrupt module interrupts the monitoring module when the monitoring module monitored the variations of levels of power supplied to the electronic components. The data storage module is connected to the interrupt module. The interrupt module stores the variations of levels of power supplied to the electronic components into the data storage module when the interrupt module is interrupted. | 09-12-2013 |
| 20140218011 | DYNAMIC POWER PROFILING - Aspects of dynamic power profiling are described herein. In various embodiments, a current sense operating mode is set for a current sense circuit, and the current sense circuit is enabled for operation. The current sense circuit senses an amount of current supplied by at least one of a plurality of power rails based on the current sense operating mode. The current sense circuit also accumulates and stores a value of the amount of current over a period of time. In certain aspects, a system controller averages the value of the amount of current based on the period of time. The current sense circuit may be configured to operate in various modes of operation including single or scan rail modes of operation, and the average of the value of the amount of current may be evaluated based on the modes of operation of the current sense circuit and/or the system. | 08-07-2014 |
| 20140333286 | LOAD PANEL BRANCH CIRCUIT MONITOR EMPLOYING AN INTELLIGENT CURRENT SENSOR MODULE - A branch circuit monitor is for a load panel inputting a number of line voltages and including a plurality of currents. The branch circuit monitor includes a processor component having a plurality of digital interfaces and is structured to receive a plurality of first digital values from each of the digital interfaces; and a plurality of metering mechanisms external to the processor component. Each of the metering mechanisms is structured to: communicate with a corresponding one of the digital interfaces, convert analog values from the number of line voltages and a plurality of the currents to a plurality of second digital values, determine a plurality of digital energy values from the second digital values, and transmit the second digital values and the digital energy values to the corresponding one of the digital interfaces. | 11-13-2014 |
| 20140340075 | POWER MANAGEMENT DEVICE, METHOD OF CONTROLLING POWER MANAGEMENT DEVICE, AND PROGRAM FOR CONTROLLING POWER MANAGEMENT DEVICE - A power management device includes an obtaining portion for obtaining information on power consumption from a plurality of electrical appliances, a display portion, and a controller for causing the display portion to display information on power consumption in the plurality of electrical appliances obtained through the obtaining portion. In each electrical appliance, a plurality of pieces of attribute information are set in advance in association, the controller carries out grouping of the plurality of electrical appliances in a plurality of layers based on the plurality of pieces of attribute information, and for each group categorized through grouping into the plurality of layers, the controller causes information on power consumption in an electrical appliance belonging to the group to be displayed. | 11-20-2014 |
| 20140354264 | HIGH SPEED CLOCK CYCLE RATE DIGITAL VOLTAGE MONITOR WITH TRIGGERED TRACING FOR INTEGRATED CIRCUITS - Implementations of the present disclosure involve a system and/or method for measuring on-die voltage levels of an integrated circuit through a digital sampling circuit. In particular, the system and/or method utilizes a delay line based analog-to-digital sampling circuit that produces a voltage reading over time, such as at every high frequency clock cycle. The digitized samples are routed to either an on-die memory structure for later analysis or are transmitted to one or more pins of a chip for capture and analysis by an external analyzer. | 12-04-2014 |
| 20150008900 | ENERGY MANAGEMENT APPARATUS, SYSTEM, METHOD, AND STORAGE MEDIUM STORING PROGRAM - An acquisition unit acquires first measurement values of the amounts of electric power of respective branch circuits or respective load devices and second measurement values of the amount of electric power of a master circuit provided for a building from a measurement device. An overall set unit obtains an overall reference value on the basis of a history of the second measurement values, and the unit receives a reduction target to set an overall target value on the basis of the overall reference value and the reduction target. An individual set unit sets an individual target value by distributing the overall target value set in the overall set unit to the amounts of electric power of the respective branch circuits or the respective load devices as allocation objects. A display instruction unit instructs display of the individual target value and the first measurement values acquired by the acquisition unit. | 01-08-2015 |
| 20150293152 | SYSTEM FOR MEASURING LOSS OF HVDC - A system for measuring a loss in power between a power transmission side and a power reception side in a high voltage direct current (HVDC) system is provided. The system for measuring the loss in power includes: a first loss measurement unit installed at the power transmission side, and a second loss measurement unit installed at the power reception side, wherein each of the first and second loss measurement units is installed at a location at which a current or voltage is measured, and includes a voltage sensor for measuring a voltage, a current sensor for measuring a current, a GPS module for providing time information on when measurement is performed by the voltage sensor and the current sensor, and a storage unit storing the time information along with a voltage value and a current value measured by the voltage sensor and the current sensor. | 10-15-2015 |
| 20160161538 | METHOD FOR TESTING DYNAMIC MODEL PARAMETERS OF WIND POWER PLANT - The present invention discloses a testing method for dynamic model parameters of a wind power plant, wherein under testing conditions including stable running of wind turbine generators and reactive-load compensation equipment, stable wind speed between a cut-in wind speed and a rated wind speed, and the wind power plant output smaller than a rated output, finishes a wind speed transient disturbance test, a wind power plant unit tripping and inputting disturbance test, a wind power plant power change test, a disturbance test for reactive-load compensation equipment of the wind power plant, a tripping disturbance test for hydroelectric power plant and thermal power plant near the wind power plant and a manual single-phase ground short circuit test at the outgoing line part of the wind power plant, and records running curves of the wind power plant under each condition to finish the parameter test. The present invention realizes the advantage of providing precise measurement data for the stability analysis of an electric power system and the production dispatching of a power grid. | 06-09-2016 |
