Patent application number | Description | Published |
20080298431 | TEMPERATURE SENSOR - A temperature sensing device is mounted to a structure of a building and senses temperature within a building space of the building. The temperature sensing device includes a housing. The housing includes a front surface that faces the building space when the temperature sensing device is mounted to the structure. The housing further includes a protrusion that protrudes from the front surface into the building space. The temperature sensing device further includes a mounting device within the housing and a temperature sensor mounted to the mounting device, the mounting device holding the temperature sensor within the protrusion. | 12-04-2008 |
20100187832 | DEVICES FOR RECEIVING AND USING ENERGY FROM A BUILDING ENVIRONMENT - A device for use in a building automation system includes a first circuit configured to receive non-electrical energy from an environment in which the device is placed and convert the non-electrical energy to electrical energy. The electrical energy is used to power the first circuit. The first circuit configured to sense a parameter based on the non-electrical energy. A communications interface configured to be powered by the electrical energy and configured to communicate the sensed parameter to the building automation system. | 07-29-2010 |
20100324962 | SMART BUILDING MANAGER - A building manager includes a communications interface configured to receive information from a smart energy grid. The building manager further includes an integrated control layer configured to receive inputs from and to provide outputs to a plurality of building subsystems. The integrated control layer includes a plurality of control algorithm modules configured to process the inputs and to determine the outputs. The building manager further includes a fault detection and diagnostics layer configured to use statistical analysis on the inputs received from the integrated control layer to detect and diagnose faults. The building manager yet further includes a demand response layer configured to process the information received from the smart energy grid to determine adjustments to the plurality of control algorithms of the integrated control layer. | 12-23-2010 |
20110047418 | SYSTEMS AND METHODS FOR USING RULE-BASED FAULT DETECTION IN A BUILDING MANAGEMENT SYSTEM - A controller for a building management system includes a system of rules for detecting faults in the building management system. The rules include content conditions and trigger conditions. The content conditions are not checked until one or more of the trigger conditions are met. A rule-based fault detection engine may be implemented by a low level building equipment controller. One or more thresholds for a rule may be automatically or manually adjusted. | 02-24-2011 |
20110061015 | SYSTEMS AND METHODS FOR STATISTICAL CONTROL AND FAULT DETECTION IN A BUILDING MANAGEMENT SYSTEM - A building management strategy includes using exponentially weighted moving averages with statistical models to detect changes in the behavior of the building management system. Detected changes in the behavior of the system may indicate a detected fault, a change in a predicted behavior, or a need for the statistical models to be updated. | 03-10-2011 |
20110093133 | CONTROLLERS AND METHODS FOR PROVIDING COMPUTERIZED GENERATION AND USE OF A THREE DIMENSIONAL SURGE MAP FOR CONTROL OF CHILLERS - A controller for a chiller includes processing electronics configured to detect a plurality of surge events. The processing electronics calculate a point for each detected surge event in at least a three dimensional coordinate system. The three dimensional coordinate system describes at least three conditions of the chiller when the surge event was detected. The processing electronics are configured to calculate a surface map for the at least three dimensional coordinate system using the calculated points. The processing electronics are further configured to control at least one setpoint for the chiller using the calculated surface map. | 04-21-2011 |
20110130886 | SYSTEMS AND METHODS FOR MEASURING AND VERIFYING ENERGY SAVINGS IN BUILDINGS - A computer system for use with a building management system in a building includes a processing circuit configured to use historical data received from the building management system to automatically select a set of variables estimated to be significant to energy usage in the building. The processing circuit is further configured to apply a regression analysis to the selected set of variables to generate a baseline model for predicting energy usage in the building. | 06-02-2011 |
20110178977 | BUILDING MANAGEMENT SYSTEM WITH FAULT ANALYSIS - A controller for a building management system is configured to analyze faults in the building management system. The controller detects a fault in the building management system by evaluating data of building management system using a system of rules. The controller determines a conditional probability for each of a plurality of possible fault causes given the detected fault. The controller determines the most likely fault cause by comparing the determined probabilities and electronically reports the most likely fault cause. | 07-21-2011 |
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 |
20120022700 | AUTOMATED FAULT DETECTION AND DIAGNOSTICS IN A BUILDING MANAGEMENT SYSTEM - Systems and methods for building automation system management are shown and described. The systems and methods relate to fault detection via abnormal energy monitoring and detection. The systems and methods also relate to control and fault detection methods for chillers. The systems and methods further relate to graphical user interfaces for use with fault detection features of a building automation system. | 01-26-2012 |
20120084063 | 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 determine a building's baseline energy usage model. The processing circuit may be configured to determine one or more automatically selected variables for use in the baseline energy usage model for predicting energy use in a building. The processing circuit may be further configured to cause the display of the one or more automatically selected variables on a user interface device. The processing circuit may be configured to receive, from the user interface, a selection of one or more variables which differ from the one or more automatically selected variables. The processing circuit may be further configured to use the received selection to generate a new baseline energy usage model. | 04-05-2012 |
20120117989 | METHOD AND APPARATUS FOR VARIABLE REFRIGERANT CHILLER OPERATION - A refrigeration system includes a compressor, a condenser, an expansion device, an evaporator, and an additional refrigerant vessel connected in a closed refrigerant loop. The additional refrigerant vessel is connected to the condenser at the high pressure side by a first valve and to the evaporator at a low pressure side by a second valve. A controller controls operation of the first valve and the second valve. Only one of the first valve and the second valve may be open at the same time. Refrigerant from the additional refrigerant vessel may be added to the closed refrigerant loop when the controller receives a low refrigerant level indication of in the evaporator. Refrigerant may also be removed from the closed refrigerant loop when the controller receives a high refrigerant level indication in the evaporator. | 05-17-2012 |
20120150707 | SYSTEMS AND METHODS FOR PROVIDING ENERGY EFFICIENT BUILDING EQUIPMENT AND SERVICES - A system for providing energy and/or water efficient building improvements to a building owned by a building owner is shown and described. The system includes a computer system configured to generate an invoice for the building owner based on estimated utilities that would have been consumed by the building had the building improvement measures not been installed. The computer system causes payment to an entity financing the building equipment using a portion of the difference between the invoiced estimated baseline utility consumption and the actual utility consumption costs. | 06-14-2012 |
20120259583 | AUTOMATED FAULT DETECTION AND DIAGNOSTICS IN A BUILDING MANAGEMENT SYSTEM - Systems and methods for automated fault detection in a building management system are shown and described. The systems and methods further involve organizing the data set into bins, each bin containing a plurality of the observed points for the variable of the building management system. The systems and methods further involve calculating, for each bin, a target parameter and an estimator of scale for the observed points. The systems and methods further involve detecting, for each bin, an outlier of the building management system by comparing a data point of the bin to the calculated target parameter and estimator of scale for the bin. | 10-11-2012 |
20130085614 | SYSTEMS AND METHODS FOR CONTROLLING ENERGY USE IN A BUILDING MANAGEMENT SYSTEM USING ENERGY BUDGETS - Systems and methods for limiting power consumption by a heating, ventilation, and air conditioning (HVAC) subsystem of a building are shown and described. A feedback controller is used to generate a manipulated variable based on an energy use setpoint and a measured energy use. The manipulated variable may be used for adjusting the operation of an HVAC device. | 04-04-2013 |
20130086010 | SYSTEMS AND METHODS FOR DATA QUALITY CONTROL AND CLEANSING - A method for detecting and cleansing suspect building automation system data is shown and described. The method includes using processing electronics to automatically determine which of a plurality of error detectors and which of a plurality of data cleansers to use with building automation system data. The method further includes using processing electronics to automatically detect errors in the data and cleanse the data using a subset of the error detectors and a subset of the cleansers. | 04-04-2013 |
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 |
20140136005 | SYSTEMS AND METHODS FOR MEASURING AND VERIFYING ENERGY SAVINGS IN BUILDINGS - A computer system for use with a building management system in a building includes a processing circuit configured to use historical data received from the building management system to automatically select a set of variables estimated to be significant to energy usage in the building. The processing circuit is further configured to apply a regression analysis to the selected set of variables to generate a baseline model for predicting energy usage in the building. | 05-15-2014 |
20140142760 | SYSTEMS AND METHODS FOR STATISTICAL CONTROL AND FAULT DETECTION IN A BUILDING MANAGEMENT SYSTEM - A building management strategy includes using exponentially weighted moving averages with statistical models to detect changes in the behavior of the building management system. Detected changes in the behavior of the system may indicate a detected fault, a change in a predicted behavior, or a need for the statistical models to be updated. | 05-22-2014 |
20140142904 | SYSTEMS AND METHODS FOR GENERATING AN ENERGY USE MODEL FOR A BUILDING - A system for generating an energy use model of a building includes a processing circuit operable to receive building data indicative of a first type of building variable and to receive additional building data correlated to an energy use of the building. The processing circuit is also operable to determine a portion of the building variable that is uncorrelated with the additional building data. The processing circuit is further operable to use the additional building data and the uncorrelated portion of the building variable to generate the energy use model of the building. | 05-22-2014 |
20140142905 | SYSTEMS AND METHODS FOR BUILDING ENERGY USE BENCHMARKING - Systems and methods for using an energy use model of a building for benchmarking is shown and described. An exemplary method includes receiving building data indicative of one or more characteristics of the building. The method further includes generating an energy use model for the building based on the building data and using the energy use model to generate statistics for the building. The method also includes identifying one or more other buildings having the same classification as the building. The method yet further includes comparing the generated statistics for the building to statistics for the identified one or more other buildings and providing an indication of the comparison. | 05-22-2014 |
20140156097 | SMART BUILDING MANAGER - A building manager includes a communications interface configured to receive information from a smart energy grid. The building manager further includes an integrated control layer configured to receive inputs from and to provide outputs to a plurality of building subsystems. The integrated control layer includes a plurality of control algorithm modules configured to process the inputs and to determine the outputs. The building manager further includes a fault detection and diagnostics layer configured to use statistical analysis on the inputs received from the integrated control layer to detect and diagnose faults. The building manager yet further includes a demand response layer configured to process the information received from the smart energy grid to determine adjustments to the plurality of control algorithms of the integrated control layer. | 06-05-2014 |
20140222394 | SYSTEMS AND METHODS FOR EVALUATING A FAULT CONDITION IN A BUILDING - Systems and methods for evaluating a fault condition in a building include determining a change to energy use model parameters attributable to the fault condition. The change to the energy use model parameters are used to calculate a corresponding change to the building's energy consumption. | 08-07-2014 |
20140245071 | AUTOMATED FAULT DETECTION AND DIAGNOSTICS IN A BUILDING MANAGEMENT SYSTEM - Systems and methods for building automation system management are shown and described. The systems and methods relate to fault detection via abnormal energy monitoring and detection. The systems and methods also relate to control and fault detection methods for chillers. The systems and methods further relate to graphical user interfaces for use with fault detection features of a building automation system. | 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 |
20140316743 | SYSTEMS AND METHODS FOR USING RULE-BASED FAULT DETECTION IN A BUILDING MANAGEMENT SYSTEM - A controller for a building management system includes a first data interface configured to receive data from the building management system and a processing circuit including a processor and a memory device storing a fault detection rule having an initial threshold value. The processing circuit is configured to detect a first fault in the building management system using the stored fault detection rule having the initial threshold value and to use the data from the building management system to determine whether an adjustment to the stored fault detection rule is needed. In response to a determination that an adjustment to the stored fault detection rule is needed, the processing circuit is configured to calculate a new threshold value for the stored fault detection rule and update the stored fault detection rule by replacing the initial threshold value with the new threshold value. | 10-23-2014 |
20150045962 | SYSTEMS AND METHODS FOR CONTROLLING ENERGY USE DURING A DEMAND LIMITING PERIOD - Systems and methods for limiting power consumption by a heating, ventilation, and air conditioning (HVAC) subsystem of a building are shown and described. A feedback controller is used to generate a manipulated variable based on an energy use setpoint and a measured energy use. The manipulated variable may be used for adjusting the operation of an HVAC device. | 02-12-2015 |