Abstract: A system and method to monitor individual appliance performance. A monitor module is provided for aggregating data from a plurality of appliances wherein the module includes. Included in the monitor device is a gateway device configured to capture operational data relating to each of the plurality of appliances and an analyzing device configured to determine individual operational characteristics for each of the appliances from analysis of the captured operational data. A notification device is further provided which is configured to provide information to a user regarding the determined operational characteristics for each of the appliances.

Abstract: A computer-implemented method for searching in a database is provided according to one embodiment. The method includes, in response to receiving a search request to search in a database, extracting from the search request a condition for searching in the database. The method further includes selecting a search algorithm matching the condition from a plurality of search algorithms registered to the database, based on historical statistic data of historical search conducted on the database. Moreover, the method includes obtaining a search result from the database by using the search algorithm. The database is a time series database.

Abstract: Provided is a display device, including: a display panel configured to display an image; a timing controller including a first data conversion unit configured to encode image data that is input from outside; and a source driver including a second data conversion unit configured to decode image data that is output from the timing controller. The second data conversion unit is configured to decode the image data that is output from the timing controller by switching, based on time, between a plurality of conversion patterns different from one another in bit pattern.

Abstract: A system for providing electrical energy to an energy consumer includes an environmental energy source; an energy storage unit being electrically connected to the environmental energy source and configured to operate with the environmental energy source; and a control unit connected to the environmental energy source and to the energy storage unit, the control unit further comprising an authentication unit configured to periodically authenticate operation of the energy storage unit with the environmental energy source such that, upon authentication by the authentication unit, the control unit enables energy to flow from the environmental energy source to the energy storage unit.

Abstract: A power transformation system having a power stealing mode for powering a device indirectly through an electrical load connected to a power source and also has a characterization mode. The transfer of energy from the power source via the load may go undetected. The system may store energy from the load in an ultra or super capacitor. This energy may be used to power Wi-Fi and various thermostat applications, among other things, associated with HVAC and building automation and management systems. Energy from the load may be supplemented or substituted with energy from a battery and/or a buck converter. In the characterization mode, the system may obtain data relative to power usage of a load and determine a profile to identify one or more components and their operating conditions.

Abstract: An automated event viewing method for storing data for a process automation system. The method includes assigning a plurality of collected process data values from a physical process to a stream, and writing the stream on non-transitory machine readable storage to obtain a stored data stream having an original sampling rate.

Abstract: Automation systems, methods, and mediums. A method includes identifying a first amount of energy consumed by a plurality of devices in a building during a first period of time while a first device in the plurality of devices is in a first state to form a first baseline. The method includes identifying a second amount of energy consumed by the plurality of devices during a second period of time while the first device is in a second state. Additionally, the method includes generating an estimated energy consumption of the first device based on a difference between the first baseline and the second amount of energy consumed.

Abstract: Energy usage can be monitored within at least one building having a plurality of energy consuming components. A database can be generated that contains values for a set of data points corresponding to data received from the plurality of energy consuming components. A change in a configuration can be detected for the plurality of energy consuming components based upon a change in values received from plurality of energy consuming components relative to the database. Based upon the change, an additional data point can be added to the set of data points in the database. Based upon the values for the set of data points, a probability can be determined that a rule for the additional data point is valid. A message can then be generated that includes the determined probability.

Abstract: A system to mitigate weather exposure risk includes a processor operatively coupled to memory. The processor is configured to generate predicted energy consumption based on a model for expected energy usage in response to detection of a weather event, and compare the predicted energy consumption data with energy consumption data. An alert is generated based at least in part on the comparison, and the alert is sent to one or more entities over one or more networks via one or more delivery methods.

Abstract: Disclosed embodiments relate to a power metering system, a method and a system for monitoring power consumed by loads by using the power metering system. In some embodiments, the system for monitoring power consumed by loads includes an external power supply source, a renewable energy sources, a distribution board, one or more power metering systems, and a monitoring server.

Abstract: A system for sensing electrical power usage in an electrical power infrastructure of a structure. The system can include a sensing device configured to be attached to a panel of the circuit breaker box overlying at least part of the one or more main electrical power supply lines. The system also can include a calibration device configured to be electrically coupled to the electrical power infrastructure of the structure. The system further can include one or more processing modules configured to receive one or more output signals from the sensing device. The sensing device can be devoid of being electrically or physically coupled to the one or more main electrical power supply lines or the electrical power infrastructure when the sensing device is attached to the panel. Other embodiments are provided.

Abstract: A method is described of pre-processing real-time data to be processed by one or more real-time analytics services. The method includes: receiving, at a stateless ingress node, data from one or more client devices; transforming the data in real-time at the stateless ingress node; determining in real-time, at the stateless ingress node, a real-time analytics service for the transformed data; and forwarding in real-time the transformed data to the determined real-time analytics service for stateful processing.

Abstract: A PV junction unit for joining a plurality of PV strings into a single string, comprising: a plurality of anode branch circuits; an anode busbar adapted to connect with an anode output end of each PV string via one corresponding anode branch circuit; a plurality of cathode branch circuits; a cathode busbar adapted to connect with a cathode output end of each PV string via one corresponding cathode branch circuit; resistors each of which is connected in series in one corresponding anode branch circuit connecting the anode output end of one corresponding PV string with the anode busbar, wherein each resistor has a theoretical resistance; voltage measuring devices each of which is connected in parallel with one corresponding resistor; and a processor connected with each of the voltage measuring devices, the processor configured to determine a current value in one PV string at least based on the theoretical resistance of the resistor in one anode branch circuit connected with the one PV string and based on a volt

Abstract: Disclosed is a device for detecting an open phase of a connection line of a standby transformer in a nuclear power plant by using a Rogowski coil. A Rogowski coil is provided to a neutral line of a Y connection at the primary side of the standby transformer. An open phase detection unit is provided for determining the generation of an open phase at the primary side and generating a warning signal if a current induced in the Rogowski coil is maintained at a value higher than a preset reference value for a time longer than a preset reference time in a state where a circuit breaker at the secondary side of the standby transformer is open. A main control unit is provided for displaying the warning to an administrator according to the warning signal provided by the open phase detection part.

Abstract: Devices state changes in a building may be determined using a combination of power monitoring and network monitoring. Power monitoring may be performed by obtaining a power monitoring signal and processing the power monitoring signal with models to determine information about state changes of one or more devices in the building. Network monitoring may be performed by receiving information about network packets transmitted by devices in the building and processing the information about the network packets to determine information about state changes of one or more devices in the building. For some devices and some implementations, information about state changes of a device may be determined by using both power monitoring and network monitoring.

Abstract: 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.

Abstract: An energy management apparatus includes: algorithm storage unit configured to store at least one energy-saving control algorithm; controller configured to control an operation of controlled device by executing the algorithm and; data storage unit configured to store reduction information corresponding to the algorithm, the reduction information used to figure out a reduction in energy consumption due to the execution of the algorithm; estimation unit configured to estimate the reduction in the energy consumption due to the execution of the algorithm on the basis of the reduction information, when controller controls the operation of controlled device by executing the algorithm; and network communication unit configured to output the estimation result.

Abstract: A method for determining, by sampling at a given frequency, a maximum voltage value of a load signal of at least one motor vehicle battery cell, the load signal to be sampled being rectified and sinusoidal and having a frequency that is higher than the sampling frequency, the method including: determining a sampling frequency, a measurement time at the sampling frequency, and a related inaccuracy, measuring a load voltage with the predetermined sampling frequency and with the predetermined measurement time, and determining a maximum load voltage.

Abstract: The invention relates to a disaggregation apparatus for identifying an appliance in an electrical network (2) comprising multiple appliances (3, 4, 5). A voltage meter (7) measures a first change in a mains voltage (V) delivered to the appliances of the electrical network, while an operational state of an appliance is modified, and a second change in the mains voltage, while a switchable load is switched. An appliance determination unit (9) determines the appliance, of which the operational state has been changed, based on the measured first change in the mains voltage, the measured second change in the mains voltage and the resistance of the switchable load. Thus, an appliance can be determined without detecting switching flickers in very short time durations, i.e. high sampling rates and continuous monitoring are not necessarily required. This reduces the technical efforts of the disaggregation apparatus for performing the disaggregation function.

Abstract: In demand prediction, a history of demand for a resource is modeled to generate a baseline model of the demand, and demand for the resource at a prediction time is predicted by evaluating a regression function of depth k operating on an input data set including at least the demand for the resource at the prediction time output by the baseline model and measured demand for the resource measured at k times prior to the prediction time. The resource may be off-street parking, and the input data set may further include weather data. The regression function may comprise a support vector regression (SVR) function that is trained on the history of demand for the resource. The baseline model suitably comprises a Fourier model of the history of demand for the resource.

Abstract: A tamper detection system for an electricity meter includes an antenna, an RF signal level circuit, and a controller. The antenna is configured to receive an RF signal. The RF signal level circuit is supported within an electricity meter housing and is operatively connected to the antenna. The RF signal level circuit is configured to detect the RF signal received by the antenna and to provide a strength signal corresponding to a magnitude of the RF signal. The controller is supported within the electricity meter housing, and is operatively connected to the RF signal level circuit. The controller is configured to generate an RF signal strength value based at least in part on the strength signal, and to generate a tamper flag responsive at least in part to a determination that the RF signal strength value exceeds a threshold value.

Abstract: 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.

Abstract: A comfort controller in an HVAC system is provided. The comfort controller comprises a processor configured such that the comfort controller compares at least one of an actual run time of the HVAC system to a benchmark run time and an actual static pressure of the HVAC system to a benchmark static pressure. The processor is further configured such that, when at least one of the actual run time and the actual static pressure are outside a specified range of their associated benchmarks, the comfort controller determines that the HVAC system has an improper configuration. The processor is further configured such that the comfort controller displays the results of the comparison.

Abstract: A client-side dynamic multi-routing power distribution system of an optical terminal equipment integrates the Power over Ethernet, dynamic multi-routing power distribution and power management technologies to dispatch power to the optical terminal equipment from a home gateway to meet power demands of the off-premise optical terminal equipment and to greatly reduce the cost for laying power lines for the off-premise FTTx optical terminal equipment, thereby expanding the coverage of optical fiber broadband service. The client-side dynamic multi-routing power distribution system includes (1) a network signal processing and DC power supply module of the home gateway for dispatching power to the remote FTTx optical terminal equipment through a telecom line at a network interface; (2) a network signal processing and DC powered module of the FTTx optical terminal equipment for handling multi-routing power distribution and dynamic load balancing from a plurality of home gateways.

Abstract: Determining sensor placement in distributed networks includes identifying measurement locations in a distributed network with a tree topology and selecting a subset of the measurement locations for sensor placement with a mutual information function.

Abstract: 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.

Abstract: A method and system for monitoring resource information and user activity. The method includes acquiring one or more data streams from one or more resource meters and one or more electronic device sensors. Discrete events are computed from each data stream. A sequence of discrete sensor-meter event itemsets are extracted based on the events. Frequent sensor-meter event itemsets are discovered from the sequence of discrete event itemsets that occur together, and a frequency of occurrence of each frequent co-occurrence itemset is discovered. Rising sensor-meter event itemsets and falling sensor-meter event itemsets are matched based on appliance state models and the frequency of occurrence of each sensor-meter event itemset. Each individual fixture is identified. Each fixture cluster is classified to a fixture category. Based on the matched fixture events, fixture clusters, and categories, resource usage information and user activities are determined for each fixture usage event identified.

Abstract: A safe powerline communications instrumentation front end device including a voltage input for receiving a line voltage from a powerline, a voltage reducer for reducing the voltage of the line voltage, a filtering system for extracting a Power Line Communications (PLC) signal from the line voltage, and an analog output for outputting the PLC signal as an analog signal for communications test equipment.

Abstract: Methods and systems are provided for managing environmental conditions and energy usage associated with a site. One exemplary method of regulating an environment condition at a site involves a server receiving environmental measurement data from a monitoring system at the site via a network, determining an action for an electrical appliance at the site based at least in part on the environmental measurement data and one or more monitoring rules associated with the site, and providing an indication of the action to an actuator for the electrical appliance.

Abstract: A transformer connection phase determination device includes a processor that executes a procedure includes: acquiring a power value consumed by at least one consumer connected to a transformer connected to any phase corresponding to a combination of two of a plurality of distribution lines, and acquiring respective current values flowing in each of the plurality of distribution lines, in association with a time axis; applying a filter that attenuates low frequency components in a current value caused by the power value and in the respective current values flowing in the plurality of respective power distribution lines; computing respective correlation values indicating correlation between the current values caused by the power values to which the filter has been applied, and the respective current values flowing in the plurality of respective power distribution lines to which the filter has been applied; and determining the phase that the transformer is connected to.

Abstract: A system and a method for controlling an air conditioner are provided. In a system where respective points in which facility devices including an air conditioner are installed are connected to each other, power used information is collected by points and corresponding fee information is computed so that respective points can be managed, statistic data with respect to power amount information and fee information are transmitted to respective point so that a user read the information, thereby managing the information in the center or by points easily, and improving convenience.

Abstract: An intelligent electronic device having an audible and visual interface for providing audible and visual instructions to a user in an event of an alarm or trouble indication in the electrical power system. The intelligent electronic device includes at least one sensor configured for measuring at least one power parameter of an electrical circuit and generating at least one analog signal indicative of the at least one power parameter; at least one analog to digital converter for receiving the at least one analog signal and converting the at least one analog signal to at least one digital signal; a processor configured for receiving the at least one digital signal and detecting at least one event occurring in the electrical circuit; and an interface configured for providing instructions associated to the at least one detected event. The instructions may be in the form of text, audio and/or video.

Abstract: A system and method for controlling the distribution of energy from a plurality of energy resources to a load. The system includes an energy system controller to control the distribution of energy to an electric load provided by a plurality of energy resources. The energy resources include dispatchable sources of energy such as diesel generators and combined heat and power generators; renewable sources of energy including photo-voltaic cells, wind turbines, and geothermal sources; and storage resources such as electrochemical batteries or pumped hydro reserves.

Abstract: A domestic appliance device includes an evaluating unit for evaluating the consumption of at least one external resource by a domestic appliance, and an output unit for outputting the evaluated consumption. In order to provide a generic domestic appliance device having increased ease of use, the evaluating unit evaluates the consumption of the external resource while taking into consideration at least one variable evaluating parameter.

Abstract: According to one aspect, embodiments of the invention provide a system for monitoring at least one circuit branch coupled to a power line, the system comprising at least one first module comprising a Current Transformer (CT) configured to be coupled to the at least one circuit branch and to produce a reference signal having a level related to a current level of the at least one circuit branch, a rectifier coupled to the CT and configured to produce a rectified reference signal, a capacitor coupled to the rectifier, and a first microcontroller coupled to the capacitor and the rectifier, wherein, the capacitor is configured to store energy from the rectified reference signal, and wherein, the first microcontroller is configured to be powered by the energy stored in the capacitor and to sample the rectified reference signal to determine the current level of the at least one circuit branch.

Abstract: 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.

Abstract: The present invention provides a water supply apparatus capable of performing a backup operation, without lowering water supply capability, when a failure has occurred in one control substrate due to surge or noise caused by lightning or due to lifetimes of various sensors, by switching to the other control substrate, and capable of reliably performing the backup operation by means of devices that prevent failure of the control substrates. The water supply apparatus (1) includes: a plurality of pumps (3); a plurality of inverters (INV) each configured to change and control a rotational frequency of a corresponding one of the plurality of pumps (3); and a plurality of control substrates (CN) configured to control the plurality of inverters (INV). When an abnormality occurs in one control substrate, other control substrate backs up the one control substrate to thereby allow the water supply apparatus to continue its operations.

Abstract: A mechanism is provided for customized power rating for computer equipment. A power monitor determines actual power consumption by computer equipment in a facility. After equipment has been stressed, an operator sends the actual power consumption information to the manufacturer. The manufacturer receives the actual power consumption information and issues a certificate that acknowledges the equipment will not consume more power than what was measured. The manufacturer may provide digital media that instructs power management hardware in the computer equipment to adhere to an actual case power limit. The power management hardware treats the actual case power limit as a hard power limit. That is, the power management hardware will not specify a power cap higher than the actual case power limit. The power management hardware prevents the equipment from crossing the actual case power limit.

Abstract: 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.

Abstract: 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.

Abstract: An information processing apparatus that is capable of controlling electric energy consumption with sufficient accuracy. An execution unit executes a job. A calculation unit calculates electric energy consumption in a period from a start of execution of the job by the execution unit to an end except a period from interruption of execution of the job by the execution unit to restarting, as electric energy consumption at the time of job execution.

Abstract: A method for identifying an electrical device connected to a mains grid is provided, the method comprising measuring at least one electrical characteristic on the mains grid with a sensor connected to a socket of the mains grid; comparing the at least one electrical characteristic with a plurality of stored candidate electrical characteristics each corresponding to one of a plurality of candidate electrical devices; and identifying the electrical device based on the stored candidate electrical characteristic that is closest to the at least one electrical characteristic. A corresponding system and a corresponding sensor are provided as well.

Abstract: A method of identifying the operation of an electrical appliance comprising an induction motor is described. The method comprises identifying the operation of an electrical appliance including an induction motor when a path traced by real power values against corresponding reactive power values over a time period of interest comprises one or more substantially circular arcs. The real power values are related to the total real power supplied to one or more electrical appliances as a function of time, and the reactive power values are related to the total reactive power supplied to the one or more electrical appliances as a function of time. There is also described a related method of identifying the operation of a specified type of appliance, in which the operation of said specified type of appliance is dependent on a supply of at least one utility such as electricity, natural gas or water.

Abstract: A system for power measurement in an electronic device includes a sensing unit, an analog-to-digital converter (ADC) and a controller. The sensing unit senses voltage across a power source and modulates a carrier signal based on the sensed voltage. The ADC converts a combination of the modulated carrier signal and audio signals received by the electronic device to generate a digitized combined signal and provides the digitized combined signal to the controller. The controller separates digitized modulated carrier signal and digitized audio signals. The digitized modulated carrier signal is demodulated to generate an output signal that provides a measure of the power consumed by the electronic device.

Abstract: One or more test features are extracted from a time domain signal. The test features are represented by discrete data. The discrete data is represented for each of the one or more test features by a corresponding one or more fitting functions, which are defined in terms of finite number of continuous basis functions and a corresponding finite number of expansion coefficients. Each fitting function is compressed through Functional Principal Component Analysis (FPCA) to generate corresponding sets of principal components. Each principal component for a given test feature is uncorrelated to each other principal component for the given test feature. A distance between a set of principal components for the given test feature and a set of principal components for one or more training features with the processing system is calculated. The test feature is classified according to the distance calculated with the processing system.

Abstract: A fuel cell fleet has a plurality of fuel cell systems each connected to a data server. The data server may be configured to obtain operational data from of the plurality of fuel cell systems. An efficiency controller operably connected to the data server and is configured to predict an efficiency and a power output of the fleet from the operational data and optimize the efficiency of the fleet to minimize the fleet fuel consumption while maintaining a desired fleet output power. The efficiency may be determined by a ratio of the fleet output current or output power to the fleet fuel consumption.

Abstract: A control device, mounted removably on a substrate, includes a power outage detection unit that detects disconnection of electrical connection of a signal line that is wired to a power supply device on the substrate and detects a power outage state of the power supply device, and an output unit that outputs a power outage signal to a control target device on the substrate that executes predetermined power outage process, in a case that disconnection of the electrical connection of the signal line is detected by the power outage detection unit, after a lapse of a fixed time from detection of disconnection of the electrical connection of the signal line.

Abstract: Apparatus and associated methods relate to a Metered-Commodity Consumption Meter (MCCM) utilizing a rotationally occluded optical beam to simultaneously measure flow/consumption and verify operational integrity. In accordance with an exemplary embodiment, an existing MCCM may be retrofit by sealably attaching a module containing an optical system which may generate one or more optical beams. Each optical beam may have a defined optical path originating from an optical source and terminating at an optical sensor within the module. In an exemplary embodiment, a Rotational Retrofit Member (RRM) may be attachable to a rotational metering gear responsive to a flow/consumption of the metered commodity. The RRM may have an occluding blade which may partially occlude the optical beams periodically when the RRM rotates. In various embodiments, the MCCM may be retrofit to make the measurement of the metered commodity impervious to external magnetic fields.

Abstract: As a result of the systems and methods described herein, an alternative MapReduce implementation is provided which monitors for impending termination notices, and allows dynamic checkpointing and storing of processed portions of a map task, such that any processing which is interrupted by large scale terminations of a plurality of computing devices—such as those resulting from spot market rate fluctuations—is preserved.

Abstract: A system and methods are provided for controlling a motor of a rod pumping system using previous RPMs of the motor and predicting an RPM of the motor; correcting a power factor of a motor of a rod pumping system; allocating energy consumption and allocating energy generation for a set of wells connected to an electricity meter using an amount of energy generated by each well; and generating an alert if a set of data is beyond a threshold for the set of data.