2737 results about "Electricity meter" patented technology

A detection apparatus (102) connected to a device in a residence and an electricity meter (100) indicating an amount of electric power consumed by the device in the residence, the detection apparatus (102) including: a reception unit (1021) which receives the amount of electric power from the electricity meter (100); a collection unit (1024) which collects usage status of the device; a device information holding unit (1027) which holds device information including the usage status of the device and electric power consumption of the device corresponding to the usage status; and a determination unit (1025) which determines whether or not the electricity meter (100) is tampered, by comparing an estimated electric power consumption amount with the amount of electric power received by the reception unit (1021), the estimated electric power consumption amount being estimated from the usage status of the device by using the device information, in which the determination unit (1025) determines that the electricity meter (100) is tampered, when a difference between the estimated electric power consumption amount and the amount of electric power received by the reception unit (1021) is equal to or more than a predetermined threshold.

A smart electricity meter with a function of monitoring and protecting power failure comprises a metering chip, a leakage current sampling circuit, a phase current sampling circuit, a phase voltage sampling circuit, a CPU (central processing unit), a power module and a low voltage breaker. The leakage current sampling circuit is electrically connected with the metering chip which is mutually electrically connected with the CPU. The CPU is electrically connected with the low voltage breaker through a trip output port. The low voltage breaker is electrically connected with the CPU through a status acquisition interface. The invention further provides a power failure monitoring and controlling method of the smart electricity meter. The smart electricity meter has the advantages that the reliable power module for power failure protection and control is provided, various types of power failure warning and protection are provided, failure warning and failure protection for voltage, current, power and the like are achieved for power users, failure spots are prevented and isolated, economic loss and personal safety accidents due to failure of electric circuit equipment of the users are prevented and reduced, and reliability of low voltage grids is effectively improved.

Methods and systems of enforcing a demand reset in a meter that communicates via a wireless network. When billing data is received by a server, it is accompanied by a demand reset counter. The counter is compared to a counter stored on the server. If they received counter is less than the server counter, it is determined that the meter missed a demand reset. The server then instructs the meter to perform a billing read and to perform a demand reset to ensure that accurate demand data is received by the server.

A method compensates for measurement errors of an external transformer coupled between an electricity meter and one or more power lines. The method includes a first step of obtaining at least one error rating for the external transformer. The method also includes the step of storing data representative of the at least one error rating in a memory within the meter. At some point the electricity meter is coupled to the external transformer. The method further includes the step of employing the meter to obtain at least one electricity consumption measurement value, the at least one electricity consumption value including either a sampled current value or a sampled voltage value. Finally, the method includes the step of causing the meter to adjust the at least one electricity consumption measurement value using at least a portion of the stored data.

A modular electricity meter configuration and corresponding methodology permits use of certain common components in combination with either a variety of mechanical displays or electronic displays. In electricity meter arrangements making use of printed circuit board or solid state technology, at least two separate electronics boards may be provided. One may constitute a standard board for basic metrology functions while the other may comprise selected implementation of various higher level functions for creating a custom design electricity meter to meet customer requirements. Different customers may be provided with differently outfitted meters by corresponding customization of the higher level function board. A unitary power supply may be provided for both boards through a fixed connector. A common baseplate includes a circuitry link through a nonremovable plug or clip for alternatively providing a tamper proof embodiment or one with exposed terminals for permitting customer testing. Physical stability and strength is provided by using tapered mounting posts and integrated snap fit arrangements without requiring any screws for assembly. A light pipe provides external output through an innercover to indicate correct meter operation. Meter data and other metered information may be output through different configurations optionally involving hardwired output, RF links, pulse outputs, and telephone connections via modem or wireless.

The invention discloses a recognition method of on-line monitoring of power consumption of non-intrusive household appliances, and belongs to the field of recognition of the power consumption of the household appliances. By means of an intelligent electricity meter in a family close to the outdoor, instantaneous currents or instantaneous power signals are obtained, the obtained signals are processed, steady state / approximately steady state or transient state characteristics of the signals are obtained, characteristic information of the signals is compared with information in a feature library by means of the crossed weighted method, and therefore equipment which is invested or removed can be recognized. The recognition method is simple in algorithm and accurate in judgment, and does not influence normal operation of the household appliance equipment.

Methods and systems regarding an electricity meter in a wireless network are disclosed. The network may comprise a collector and a plurality of electricity meters that measure consumption of electricity and that bi-directionally communicate wirelessly with the collector. The electricity meter may have an established association with at least one battery-powered meter that measures consumption of a commodity other than electricity. The electricity meter may receive information about measured consumption of the other commodity from the battery-powered meter and store the received information. The electricity meter may transmit both information about consumption of electricity measured by the electricity meter and the information about consumption of the other commodity received from the associated battery-powered meter to the collector via the wireless network and also to a remotely located display associated with the electricity meter.

A method compensates for measurement errors of an external transformer coupled between an electricity meter and one or more power lines. The method includes a first step of obtaining at least one error rating for the external transformer. The method also includes the step of storing data representative of the at least one error rating in a memory within the meter. At some point the electricity meter is coupled to the external transformer. The method further includes the step of employing the meter to obtain at least one electricity consumption measurement value, the at least one electricity consumption value comprising either a sampled current value or a sampled voltage value. Finally, the method includes the step of causing the meter to adjust the at least one electricity consumption measurement value using at least a portion of the stored data.

Embodiments for monitoring one or more utilities consumed within a monitored area including detecting an amount of a first utility consumed by a load associated with a device and an amount of a second utility consumed by a load associated with the device. The identity of the device is determined based on the amount of the first and second utility consumed. A utility monitoring method is disclosed that includes measuring an amount of a utility consumed by a first device at a first time and an amount of a utility consumed by a second device at a second time. The identity of the first device is determined based on the measured consumption of the first and second devices at the first and second time. In certain implementations, the electricity meter uses an effective variance analysis of the conductance waveform on an electrical circuit to identify specific appliances.

A comprehensive detecting and analyzing platform for performance of digital electric energy metering systems of intelligent transformer substations is provided with a detecting system and a background expert system. The detecting system comprises an electronic transformer detecting system, a digital / digital-value-input electric energy meter detecting system and a digital electric energy metering comprehensive performance detecting system. By the background expert system, real-time monitoring and value tracing can be simultaneously carried out for electronic / optical current transformers, electronic voltage transformers, digital / digital-value-input electric energy meters and the like, and electric energy data of analog systems and multiple digital systems can be compared and analyzed so that the comprehensive performance of each digital electric energy metering system is detected. Detection results are comprehensive owing to multiple signal acquisition channels and comprehensive consideration on metering risk points of the systems, and the comprehensive detecting and analyzing platform is beneficial to improving metering accuracy for the intelligent transformer substations and digital transformer substations, and provides a good technical support for constructing the intelligent transformer substations and the digital transformer substations.

A three-phase electronic electricity meter that includes configurable voltage sensing blades such that the electricity meter can be configured for use with various electrical service types. The electricity meter includes a base having a configuration to correspond to standard ANSI-type sockets. The meter base includes a plurality of individual voltage sensing blades that are received by the ANSI socket. At least one of the voltage sensing blades is movable between a first and a second position such that the voltage sensing blade contacts different areas on a meter circuit board in the first and second positions. A common circuit board can be utilized for different electrical service types and the contact arrangement can be selectively configured by moving the voltage sensing blades between their first and second positions.

Systems, methods, and apparatuses are disclosed for electricity meters to detect electricity theft. An indication of electricity theft may be generated if after an occurrence of a first power outage, the meter detects received energy and if after the occurrence of a subsequent power outage, the meter detects delivered energy. The utility company may then be alerted to the indication of the electricity theft.

A three-phase electronic electricity meter that includes a power supply circuit operable to create a constant voltage output when receiving a variable voltage input. The power supply circuit of the electricity meter receives a three-phase line voltage and converts the variable three phase line voltage to a constant DC output. The power supply circuit includes a current limiting circuit to suspend operation of the power converter when the current exceeds a selected value. The power supply circuit includes an over voltage protection that limits the maximum voltage applied to the switching component of the power supply circuit. Both the over voltage protection circuit and the current limiting circuit suspend operation of the power converter to prevent damage to the operating components of the power supply circuit.

The invention relates to an analysis method for electricity stealing behavioral mode of user electricity utilization of a user. The analysis method comprises the steps of: (1) acquiring electricity utilization data of the user and acquiring anomalous event data of an ammeter; (2) extracting historical electricity utilization data and historical anomalous event data of the ammeter for processing; (3) cleaning the historical electricity utilization data and the historical anomalous event data of the ammeter; (4) establishing an electricity stealing behavioral analysis model; (5) correcting electricity stealing model parameters; (6) evaluating an electricity stealing risk. The analysis method is carried out under a framework of a big data platform, and mass data are calculated in parallel, so that the problem of low calculation efficiency is solved, the requirements on daily analysis, daily processing and daily monitoring of an electricity utilization department are satisfied, a clerk per se can select an electricity stealing user in high risk for processing, and therefore the work efficiency is improved.

The invention relates to an acquisition failure analyzing and processing method of an electricity utilization information acquisition operating and maintaining system. The acquisition failure analyzing and processing method comprises region failure discovery and analysis and equipment failure discovery and analysis, wherein the region failure discovery and analysis comprises the following steps: 1, counting terminal online rate per hour, if a statistical value is lower than a normal period terminal online rate threshold, forming failure grouping; 2, analyzing region failures according to a number of terminals, a number of affected uses and valid user number information by counting the terminal online rate and a communication operator influence degree; 3, determining a failure order of severity according to a failure scale and a failure range, showing a failure region distribution condition on a GIS (Geographic Information System) graph. The equipment failure discovery and analysis comprises the following step of discovering and analyzing a terminal failure and an electricity meter failure. The acquisition failure analyzing and processing method of the electricity utilization information acquisition operating and maintaining system comprises the following steps: synchronizing a newest file of a marketing system to an electricity utilization information acquisition system by a main station, and sending a processing instruction out. The acquisition failure analyzing and processing method of the electricity utilization information acquisition operating and maintaining system can be used for monitoring the failure and intelligently analyzing and processing the failure.

A methodology is provided for informing targeted Demand-Response (DR) and marketing programs that focus on the temperature-sensitive part of residential electricity demand. The methodology uses energy consumption readings collected from “smart” electricity meters, as well as hourly temperature readings. Individual consumption is decomposed into a thermal-sensitive part and a base load (non thermally-sensitive), a model of temperature response that is based on thermal regimes, i.e., unobserved decisions of customers to use their heating or cooling appliances. This model is used to extract useful benchmarks that compose a thermal profiles of individual customers, i.e., terse characterizations of the statistics of these customers' temperature-sensitive consumption. This knowledge may, in turn, inform the DR program by allowing scarce operational and marketing budgets to be spent on customers whose influencing will yield highest energy reductions at the right time. Methods are also provided for scheduling optimal, individual customer controls of the thermal appliance to achieve a desired profile of the aggregate energy reductions.

The invention discloses a wireless data-image dual acquirement anti-electricity-theft monitoring system and method which uses a microwave body sensor to conduct the real time detection to activities of people around an electricity meter box. Based on the method of the image shooting of a camera, the monitoring system provided by the invention uses a camera to continuously shoot and store the images of the activities of people around the electricity meter box and can real time transmit alarming information, electricity meter data and image information to a motoring server through GPRS network; and then, the motoring server can send the received alarming information to the mobile phones or computers of users in time, and users can read the alarming information from the mobile phones or computers of users in distance. Besides the functions of remote electricity meter data acquiring, the anti-electricity-theft monitoring and real-time alarming, the monitoring system also can transmit field images in time and obtain images stored by field equipment later for providing convincible proofs during handling the electricity theft of illegal users.

The invention provides self-service pack sending access equipment and a system thereof, and belongs to the technical field of logistic terminal material sending. The self-service pack sending access equipment comprises a main control portion and a cabinet body for storing items, and is characterized in that the main control portion comprises a shell body, wherein an industrial control computer, a displayer provided with a touch screen, a coin selector, a changing machine, a POS machine, a bill validator, a phonetic device, a keyboard, a scanning gun, a radio frequency card reader, a receipt printer, a mail list printer, an electronic balance, a communication module, an electricity meter, and an uninterrupted power supply (UPS) are further arranged in the shell body. The self-service pack sending access equipment and the system have the advantages that using is convenient, automatic weighing and charging, receipt printing, self-service pickup, self-service sending, remote control for opening and closing of cell doors, and the like can be achieved through control of the industrial control computer, queuing is not needed, an express company does not need to send additional personnel, the equipment and the system are suitable for unmanned full self services of non-business places, data base information can be inquired and counted in a system client side, and therefore management efficiency is promoted.

An arrangement for obtaining measurable voltage signals in a utility meter includes a first connection to a phase of a power line, a second connection to a reference of a power line, a voltage divider circuit, and a series inductor. The voltage divider circuit is disposed on a circuit board and is coupled between a first node and the second connection. The voltage divider circuit has an output configured to provide measurable voltage signals to a circuit operable to generate voltage measurement information. The series inductor is disposed apart from the circuit board and is configured for current limiting. The series impedance element is coupled between the first connection and the first node.

An arrangement for use in a utility meter includes a temperature sensor, a memory device, a communication circuit, and a processing circuit. The processing circuit is operably coupled to receive information representative of temperature measurements from the temperature sensor. The processing circuit is configured to store first temperature information associated with a first time period in a first data record in the memory device, the first temperature information derived from one or more of the temperature measurements. The processing circuit is further configured to store subsequent temperature information associated with corresponding subsequent time periods in corresponding other data records in the memory device. The processing circuit is also configure to periodically cause the communication circuit to communicate information representative of the first temperature information and the subsequent temperature information to an external device.

Method of commerce and system components that enable the sale of electricity on-request to independent vehicle operators for propulsion. Electricity could be delivered by conventional roadway overhead electric line components (see FIG. 2). Vehicles would be equipped with a computer-like component that contains an electricity meter, flow switches, and wireless communications capabilities (see FIG. 14) to communicate with an operations (12) computer site. Site would have customer credit profiles for approving distribution, wirelessly requested from customer vehicles. Vehicles would be additionally equipped with a robotic collector module (51). If implemented on a highway, the driver would request service while driving in an electrified lane via a user interface and, if approved, the robotic collector module (51) handles engaging electrical contact and disengaging when needed. Customer would be electronically billed for the electricity used. There is a continuous roadside monitoring network for improved safety and vehicle authentication (see FIG. 11, 12).

The invention designs an electric energy meter carrying manipulator suitable for a meter box and relates to electric energy meter moving and carrying equipment and solves the technical problem that: the conventional electric energy meter carrying manipulators are low in efficiency because of manual operation. The electric energy meter carrying manipulator comprises a frame and a pneumatic clamping jaw for clamping an electric energy meter and is characterized in that: the pneumatic clamping jaw is arranged on a longitudinal part; the longitudinal part is arranged on a vertical guide rail of a transverse part and is driven by an air cylinder; and the transverse part is connected on the frame in a sliding mode and is driven by a synchronous belt. By movement in the horizontal and vertical directions, the pneumatic clamping jaw is moved to above the electric energy meter for grabbing the electric energy meter or is moved to above a meter box for placing the meter in the meter box. The electric energy meter carrying manipulator is operated automatically. The production efficiency is improved. Manpower resources are saved. The electric energy meter can be placed into a transfer station by the manipulator and then is grabbed to a tool plate by another automatic manipulator. The influence of a tolerance of an inner die of the meter box on setting of automatic program parameters for controlling the manipulator which grabs the electric energy meter to the tool plate is eliminated by the transfer station.

The invention discloses an electric energy metering device fault analysis method based on big data mining and scene pre-judgment, belonging to the monitoring field. The electric energy metering device fault analysis method comprises steps of calculating out a fault type of a secondary circuit of a watt hour meter, inferring relation coefficients between display electric quantities of the watt hour meter after various types of faults and the display electric quantity of the watt hour meter under a normal condition by targeting watt hour meters of two connection modes which include a three-phase four-wire mode and a three-phase three-wire mode, respectively calculating electric quantity imbalance rates corresponding to buses of a transformer station and performing determination according to electric quantity data of a bus balance daily statement, finding out a bus j corresponding to a failed watt hour meter, performing fault pre-judgment before going to side for checking, finding out potential faults and sorting the faults according to priorities, performing on site checking according to a pre-judgment result and finding out a final fault. The electric energy metering device fault analysis method of the invention carries out fault analysis of an electric energy metering device under a big data background, effectively solves a problem of influence on line loss statistics which is caused by electric energy metering device and improves efficiency and accuracy of fault analysis and checking of the electric energy metering device.

The invention relates to a watt-hour meter inspection device and method, in particular relating to a three-phase intelligent watt-hour meter inspection device and method. The existing watt-hour inspection device has long inspection time, and needs an extra instrument for inspecting the power consumption of a watt-hour meter; the existing watt-hour meter inspection device has low efficiency and can inspect only one watt-hour meter for one time; and in addition, the existing watt-hour meter inspection device is inability of testing the cost-control trip of the intelligent watt-hour meter. The three-phase intelligent watt-hour meter inspection device comprises a standard clock, a three-phase program-controlled source, a standard watt-hour meter, error calculators, power consumption testers and a communication module. The inspection device provided by the invention is characterized by comprising trip monitoring units, wherein the inspection device has a plurality of testing work positions; one power consumption tester, one trip monitoring unit and one error calculator are arranged on each testing work position; each error calculator is provided with a counting calculation module; and the standard watt-hour meter is used for metering an output module. The three-phase intelligent watt-hour meter inspection device is rapid in inspecting watt-hour meters, and can inspect the power consumption and the cost-control trip.

The invention discloses an automatic verification system and method for a single-phase intelligent watt-hour meter. The verification system comprises a master station, an industrial personal computer, a programmable logic controller (PLC), a roller conveying line, a six-degree-of-freedom robot, a verification conveying line, recognition equipment, pressure-resistant test equipment, appearance inspection equipment, programming equipment, power presetting equipment, error and function verification equipment, load-switch test equipment, reset-key setting equipment, seal equipment, certificate sticking equipment and sorting equipment. The verification method sequentially comprises the following steps of: conveying, meter taking, conveying, recognition, pressure-resistant test, appearance inspection, programming, power presetting, error and function verification, load-switch test, reset-key setting, seal, certificate sticking and sorting. The verification system and the method have high verification efficiency and small labor strength, and the phenomenon of missing detection is not easily generated.

An arrangement for use in connection with an electricity meter includes an electricity meter housing and at least one connection between a first conductor and a second conductor carrying line voltage. The arrangement further includes a processing circuit that is configured to obtain a first voltage measurement within the meter housing on a first side of the at least one connection, and to obtain a second voltage measurement on a second side of the at least one connection. The processing circuit is further configured to determine a value corresponding to an impedance across the at least one connection.

Apparatus and methodology are disclosed for providing effective transmission of data to and / or from an electricity meter by providing embedded radio frequency components. An antenna and stripline or microline filter arrangement are provided as embedded components in association with a transmitter or transceiver portion of the electricity meter's metrology circuitry so as to provide control of out of band harmonic radiation and to provide enhanced signal transmission to and / or from the electricity meter, to accomplish automated meter reading communications or similar. The antenna element is configured and mounted such that, once the electricity meter is fully assembled, the meter case itself can be used as part of a radiating element. An overall resulting integrated design can achieve greater economy utilizing printed circuit board approaches with no additional parts, and with less uncontrolled surface radiation because of the otherwise buried or embedded structure.

Disclosed are apparatus and methodology for integrating directly within an electricity meter components corresponding to a high current switch. Line and load terminals forming a portion of the high current switch also correspond to line and load terminals configured for insertion into an electricity meter socket. Plural pairs of spring elements are connected at one end thereof to the meter load terminal while the opposite ends of the spring elements carry contacts configured to cooperate with matching contacts on a conductive support. The conductive support is coupled to the line terminal by a further conductive bar that is configured to support a flux-concentrating core for measurement of current flow through the high current switch. The present subject matter has to do with integrating a service disconnect switch directly into the base of a meter so as to provide a dual functionality component. The integrated switch is configured so as to cooperate with, for example, current sensing components to provide a fixture to secure the current sensing core which can then focus a flux field onto a Hall cell mounted on the metrology printed circuit board.

The invention provides an electric energy meter capable of measuring residual currents. The electric energy meter comprises a shell, a wiring terminal base, a phase line, a null line, a relay, a phase line current sampling resistor, a residual current transformer and a circuit device. The relay, the phase line current sampling resistor and the residual current mutual inductor are all arranged in the shell. The phase line and the null line penetrate through the residual current mutual inductor. The circuit device comprises a voltage sampling module, a signal processing module, an A / D conversion module, an electric energy metering module, a single-chip microcomputer processing module, a relay control module, a communication module, an LCD display module, a button module and a power module. The electric energy meter can measure and record the residual currents in user lines in real time and has the functions of residual current over-limit warning and event recording. The electric energy meter only needs to be improved on the basis of an existing intelligent electric energy meter, is not high in improvement cost, does not affect the functions and the overall dimension of the existing electric energy meter and is convenient to popularize in large scale.

A method measures a resistance of an element that is operably coupled to receive an AC line voltage. The method includes obtaining a first voltage measurement value V1A from a first side of the element at a first time, and obtaining a second voltage measurement value V2A from a second side of the element at the first time. The method also includes obtaining a first current measurement value IA through the element at the first time, and obtaining a second current measurement value IB through the element at the second time. The method further includes obtaining a third voltage measurement value V1B from the first side of the element at a second time, and obtaining a fourth voltage measurement value V2B from the second side of the element at the second time. The processing device determines the resistance at least in part based on the values V1A, V2A, V1B, V2B, IA and IB. The determination based on an adjusted difference of V2B and V2A.