Showing papers on "Electricity meter published in 2006"

Electricity meter with power supply load management

Abstract: An electricity meter for monitoring electric power consumed from a service line is disclosed. The electricity meter includes a power consumption metering system for measuring the amount of power consumed from the service line, a peripheral device providing a non-critical function, a power converter, and a load management system. The metering system includes a controller and data storage for storing power consumption data. The power converter provides an unregulated voltage output at the terminals of a capacitor for powering the metering system. The load management system selectively couples and decouples the peripheral device from the power converter. The load management system senses the unregulated voltage to determine whether to couple or decouple the peripheral device. A load management system for an electricity meter and a method of managing the loads on the power system of an electricity meter are also disclosed.

Rack-mounted power meter having removable metering options module

Abstract: A meter for measuring power parameters on one or more electrical power lines/loads is configured to operate with our without a removable metering options module. The meter includes a meter housing designed and dimensioned for rack mounted installation in a bay of an equipment rack or cabinet, and metering circuitry configured to provide revenue accurate metering and power quality analysis for a power line/load. The metering options module may be mounted to an externally accessible surface of the meter to change the functionality of the metering circuitry without increasing the dimensions of an outer envelop of the meter, and without disturbing tamper-proof seals included on the meter.

Consumer-sited power management system and method

Abstract: A system and method provide emergency back-up power for communications, security and other systems of an electric power consumer, and for peak-shifting of the electrical load so that electricity is generated and stored when demand is low, and the stored power is used when demand is high Embodiments include providing an electric power management device having a battery and a communication system at the premises of a consumer of electricity, and connecting the power management device to an electric power provider The battery is charged at an off-peak time when a demand for electricity is low, as determined by the electric power provider; and discharged to provide electricity to the consumer at a time when the demand for electricity is high, as determined by the electric power provider The charging and discharging is controlled by the electric power provider

Training and Racing with a Power Meter

Abstract: Training with power means that you are utilising the latest tool in the cycling industry today in order to maximize your athletic potential.With every crank of the pedals, power meters can bring about improved performance for both cyclists and triathletes. But understanding how to use the technology is key. Here's the first book to fully explore the benefits and methodology of power-based training. Step-by-step instructions explain how to incorporate power into regular training, identify strengths and weaknesses, track progress throughout the season, and peak for the most important races."Training & Racing with a Power Meter" is for all power meter users or those thinking about taking the plunge. It can help the advanced users better understand their current power data and delve deeper into the numbers, while new users will find out the steps to take in order to better use their power meter. And if you don't own a power meter yet, let "Training & Racing with a Power Meter" be your guide to the products available with recommendations, installation notes and clear directions on how to interpret the data they provide.Authors Allen and Coggan explode the myth that power meter training is too complicated for the average cyclist. This title includes a thorough guide to help cyclists find the right power meter to suit their goals. Comprehensive illustrations explain key concepts.

Portable power meter for calculating power applied to a pedal and crank arm based drive mechanism and a method of calculating the power

Abstract: A power meter for power a pedal and crank arm based drive mechanism measures and displays athletic performance information as a measure of a physical quantity, power, using a flexible force sensor inserted into a cycling shoe. Mathematical cycling models and data from the flexible force sensor are used to calculate the power.

Excessive surge protection method and apparatus

Abstract: An electrical meter includes a voltage input, a current input, a measurement device and a surge protection apparatus. The measurement device generates electrical power consumption measurements based upon the voltage input and the current input. The surge protection apparatus may include an inductor, a resistor and a positive temperature coefficient device (PPTC). A protective barrier is provided to physically isolate the surge protection apparatus from other components of the meter.

Utility monitoring and disaggregation systems and methods of use

Abstract: 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.

Electrical service disconnect in a modular meter

Abstract: An electricity meter coupled to a load, the load coupled to electrical power lines includes a sensor module having a sensor housing, voltage and current sensors secured within the sensor housing and a service disconnect switch secured within the housing. The voltage and current sensors are operable to receive voltage and current signals representative of voltage and current provided to the load and generate measurements signals therefrom. The service disconnect switch is operable to controllably disconnect and connect the load to the electrical power lines. The meter further includes a removable measurement module including a measurement circuit operable to receive the measurement signals and generate energy consumption data therefrom. The measurement module includes a device for communicating information relating to the energy consumption data. The measurement module is configured to be coupled to the sensor module to connect the measurement circuit to the voltage and current sensors. The sensor housing can include a disconnect switch having an actuator accessible external to the sensor housing, the actuator being inaccessible when the measurement module is coupled to the sensor module. The disconnect switch is operably connected to cause, when actuated, the service disconnect switch to change from the connected state to the disconnected state.

Measurement by the Software Design for the Power Consumption of Streaming Media Servers

Abstract: The power consumption of the streaming media server can be obtained in real time by the virtual instrumentation software module described in this paper without an additional hardware meter. From the observation of experiment's data we conclude that the measurement of the power consumption of the streaming media server depends on the CPU utilization exquisite dynamically and with some system operation parameters. We form a model to represent the power consumption with respect to the CPU utilization. By using the software method based on this model, users can perform the measurement of the power consumption of the PC at any time even remotely through the Internet. Once the required measurements are made, the acquired data can be immediately transferred back to the monitor server in order that the measured data can be analyzed in more detail. To facilitate the measurement process, we also design a suitable graphic user interface is also designed. Our method has been tested through a comparison with the measurement results by means of a power meter.

Method and apparatus for providing interesting and exciting video game play using a stability/energy meter

Abstract: A power or life meter is displayed in a video game. Firing a weapon depletes the indicated power. Meanwhile, the power is recharged at a predetermined rate. If the indicated power exceeds capacity, the game character is adversely impacted. If the indicated power is completely depleted, the game character loses a benefit.

Revenue class power meter with frequency rejection

Abstract: A power meter for measuring power parameters on one or more electrical power lines/loads is configured to include a revenue class metering module and a power quality metering module. The revenue class metering module and the power quality metering module may use the same measured voltage and current signals to generate revenue accurate power consumption information and power quality information, respectively. The power meter may also include a plurality of filters configured to attenuate high frequency signals included in the voltage and current signals. Each of the filters may be configured with a corner frequency, gain and signal propagation delay that is substantially equal. The filtered current and voltage signals may be received and processed by the revenue class metering module, and the power quality metering module to generate revenue accurate power consumption information and power quality information, respectively. Alternatively, the filtered current and voltage signals may be received and processed by the power quality metering module to generate power quality information, and unfiltered current and voltage signals may be received and processed by the revenue class metering module to generate revenue accurate power consumption information.

Novel Approach for Remote Energy Meter Reading Using Mobile Agents

Abstract: Power or Energy meter systems can be incorporated with embedded controllers such as Micro web-servers with Ethernet port to transmit the reader data over the Internet. Such data can be then fed and integrated into existing Energy Management Systems located at power companies and organizations. The problem of efficiently collecting data from a large number of distributed embedded web-servers in the energy meters is still a challenging problem. Mobile Agents are executing programs that migrate during execution and present methods for maintaining and using distributed systems. In this paper, we develop a new abstract approach using Mobile Agents to solve the problem of efficiently collecting meters readings.

Method for providing comprehensive electrical usage and demand data

Abstract: A method for providing comprehensive electrical usage and demand data is disclosed. An electric meter ( 20 ), central data server ( 28 ), and customer's computer ( 38 ) comprise an Internet-based energy information system according to certain of the prior art. It is assumed that either or both of the networks ( 24, 36 ) of this system are intermittently connected, as in a dial-up connection, or are expensive to connect continuously, thereby precluding the presentation of real-time data. The present invention provides continuous, real-time data to a utility customer's computer through a direct, low-latency network ( 102 ) to the meter. All data are presented in the form of web pages, and the posted pages ( 30 ) and the locally generated pages ( ) are hyperlinked to one another, so that the customer has seamless access to comprehensive usage and demand data thereby, enabling proactive management of energy utilization. Further disclosed is a pulse transponder/logger that implements the system at a site with a pulse-output electric meter. Finally disclosed are algorithms to determine electrical demand trends from pulse streams.

Integrated detecting and measuring method for metering property of high voltage power meter

Abstract: The integral detection and measurement method of metering performance of high voltage power meter belongs to the field of measurement technology. The method includes connecting high voltage voltage/current generator unit, voltage/current regulating unit, data comparator unit, control and data processing unit, and standard high voltage metering unit with the high voltage power meter to be measured; applying one sequence of voltage and current to the standard high voltage metering unit and the high voltage power meter to be measured to obtain one set of standard power values and one set of measured power values; comparing these two sets of power values in the data comparison unit and feeding the comparison results to the control and data processing unit; calculating the metering error based on the given formula and outputting the measurement results.

Remotely Accessible Single Phase Energy Measuring System

Abstract: This paper presents a model developed in order to measure the electricity consumption of the domestic electricity users The model has a special capability of transmitting the measured values to a central database via Power line or a ISM band wire-less channel Two modules were developed for power line communication and wireless communication where users can select the channel on their choice The central location and all the energy meters in the network were connected in bus topology Each energy meter was given a unique identification number by which the central data acquisition server identified each of it A communication protocol was developed in such a way that it would communicate one meter at a time Time division multiplexing was used to eliminate the collisions and to obtain a reliable transmission A microcontroller functions as the main processing element of this product It was programmed in such a way that it would measure energy and transmit the measured values through a specified channel The designed meter was not only capable of measuring electricity, but also capable of monitoring parameters like voltage, current and power factor As a final product a comprehensive system was devised to read each energy meter in the network and store the values in a database

Power Energy Meter in a Low Cost Hardware/Software

Abstract: This paper presents the study and development of an electrical energy monitoring system, consisting of a digital energy meter, a supervisor and manager software, and a database to store the measurements. Algorithms of calculus are proposed for implementation in meter. Physical environment and communication protocol are also proposed. Programming languages are studied and used to develop the software and database.

Capturing Energy Meter Data over Secured Power Line

Abstract: The following paper describes the technological background necessary for automated data collection from any energy meter installed on the client's side of the electrical distribution chain. We focuse on standardized Power Line technologies such as Power Line Communication (PLC), Broadband Power Line (BPL) and Home-Plug that may work on its own or provide the base for upper level communication suites such as TCP/IP. They might be a high-efficient solution to the automation of energy data capture for both home and corporation usage. Since energy data represent a highly- sensitive bucket of data, both hardware and software solutions need to be strongly protected. The paper outlines the steps in hardware implementation of the AES cryptographic algorithm as well as its use in overall automatic measurement system.

System and method for testing power durability of saw filter

Abstract: A system for testing a power durability of a SAW filter includes: a signal generator for generating a continuous wave of an oscillator; a high power amplifier for amplifying a signal applied from the signal generator into a target power level; a power durability tester (PDT) for receiving the amplified signal from the high power amplifier and monitoring a power applied to a SAW filter, and setting a path for monitoring an electrical property through a network analyzer; a power meter for measuring an output signal of the PDT; a controller for changing a path to monitor an electric property of the PDT; the network analyzer for analyzing an electrical property of the SAW filter; a reliability tester for applying a test temperature to the SAW filter and maintaining the applied test temperature; a thermal meter for measuring a temperature of the SAW filter; a temperature controller for controlling a test temperature applied to the reliability tester; and a computer for controlling the signal generator, the power meter, the network analyzer, the controller, the temperature controller, and the thermal meter.

An electricity meter with fraud prevention

Abstract: An electricity meter for measuring the amount of electrical energy supplied by an electrical power supplier to an electrical power consumer via an electrical power distribution circuit consisting of at least two electrical supply leads and a safety lead. The meter comprises a current sensor for sensing the current flowing in at least one of the electrical supply leads, and a voltage sensor for sensing the voltage across a measurement load and an energy sensor responsive to the current and voltage sensors. The meter is provided with an internal power supply whereby the measurement circuitry can remain actively powered in the event of a fraud where the voltage sensor is disabled, such that current measurement can take place and whereby relative measurement of power can be determined by use of a representative voltage value.

Long-distance electric energy metering-charging system

Abstract: The utility model discloses a long-distance electric energy metering and charging system, which comprises a terminal equipment layer, a data communication layer and a monitoring and managing layer, wherein the data communication layer is a mobile communication network based on the tunnel technology of mobile communication virtual private network VPN. A data collection terminal group positioned of the terminal equipment layer collects data of electric meters, the data are transmitted to a front-end processor of the system of the monitoring and managing layer through the mobile communication network of the data communication layer, the data are stored in a system foreground data base by the front-end processor; after processed and filtered by a system data transmission middleware, the data collected by the front-end processor are unloaded into a system background data base for other subsystems of the system background to use. The utility model can realize the functions that power utilization data can be accurately collected, stored and transmitted in real time, data of field devices and managing terminals can be interactive in real time, the abnormality of power utilization can be monitored, electricity can be prevented from being stolen, etc. Besides, the utility model has the obvious advantages of less investment, large data quantity, low running cost, free maintenance, etc.

Optical fiber combined overhead earth wire

Abstract: A C current lightning strike resisting test system for optical fiber overhead ground line, which contains OPGM sample mechanical device, OPGW lightning strike test source, control unit, electricity measurement unit, optical measurement unit, electrode and connection circuit, wherein the lightning strike test source transmitting out lightning strike current and applying to OPGW sample through discharge electrode, control unit for controlling quick electrode triggering discharge and keeping the electric arc current for preset time, electricity measurement unit for measuring lightning continuous current and converting to transferring charge quantity, the light power meter in optical measurement unit measuring light decay. In said invention, the C current is 100-400 ampere, keeping for more than 0.5 second.

True pulse load-pull measurement setup for high power transistors characterization

Abstract: In this paper we describe a new method of high power transistor characterization where a pulsed RF measurement system is integrated into a load-pull environment. The pulse synchronization mechanism between the vector network analyzer and, scalar power meter, and the rest of the system will be discussed, with emphasis on integration details and calibration fidelity. It will be shown that the system can characterize transistors with RF powers in excess of 200W under high reflection coefficient conditions.

Electric meter system

Abstract: PROBLEM TO BE SOLVED: To provide an electric meter system displaying calm car speed at the very low speed as well as preventing fluctuation of car speed representation cause by the gear change shock while in-gear time. SOLUTION: The electric meter system provided with a car speed meter is characterized in that a change of the transmission gear from the neutral position to the in-gear condition makes the display of the car speed keep "0" for a prescribed time, and also the reaction speed of the display of the car speed is slowed in the case the car is running very slowly while the transmission gear is in-gear condition. COPYRIGHT: (C)2006,JPO&NCIPI

Electronic type prepay carrier wave electric energy meter

Abstract: The utility model has relates to an electronic type prepay carrier wave energy meter, which has the advantages of high and reliable stability, accurate measurement and long service life, and can complete a prepay carrier wave copy collection function. The utility model comprises a singlechip to which an ADE7755 metrology chip and a PL3105 carrier wave chip are respectively connected. The PL3105 carrier wave chip is connected with an information button. A magnetic core transformer is connected to the PL3105 carrier wave chip. A current divider and a divider resistor are connected to the ADE7755 metrology chip.

Electric energy meter and power monitor system

Abstract: This invention relates to a power meter and its power monitor system, in which, said power meter has two modules: a sensor module and a communication module controlled by a microprocessor, said sensor module finishes the sample and compution for electric parameters and the communication module finishes data switch with the sensor module and carries out network communication process by the TCP/IP protocol stack. Said system includes: a power meter and a user monitor device having a power meter management module used in displaying and storing data from the communication module via the network and managing the power meter, which can monitor and control multiple independent electric appliances at the same time and transfer collected parameters by internet and collect them and keep them in the user monitor device due to the Web server and a power monitor system owned by it.

Power meter for biasing an audio amplifier

Abstract: An improved diagnostic meter, of the type used to measure the conduction of a vacuum tube in an audio power amplifier, which provides a display of the average value of instantaneous power dissipated by the tube. A probe containing a current sense resistor and a voltage attenuator interfaces between the tube and the amplifier to sample current through and voltage across the tube. A multiplier circuit computes a product of the sensed current and voltage, and a low-pass filter computes an average of the product. A display represents the average as a numerical value of Watts dissipated by the tube. A further improvement to the meter incorporates a DC-DC converter into the meter's power supply circuitry which allows the meter to be powered from the AC or DC filament supply provided by the amplifier.

Far transmission multifunction electric meter

Abstract: The utility model discloses a far transmission multifunction electric energy meter with the function of real-time far transmission and monitoring. The electric energy meter comprises a measuring unit, a data processing unit, a data display unit, a data storage unit and a power supply, wherein the data processing unit is composed of a CPU1 and a COU2; a far transmission communication module is connected with the CPU2 of the data processing unit; data after finished processing is sent to the far transmission communication module by the CPU2 through a serial port according to a communication protocol and then is sent to a far end for recording and receiving. The utility model utilizes the GPRS communication to realize the functions of the real-time transmission of electric energy meter data, the real-time interaction of field device and management end data, the active upward report of abnormal power utilization, electric theft and electric meter faults, etc. Various defects of manual meter reading are solved; the work efficiency and the quality of electric supply service are enhanced.

Automated meter reader

Abstract: An automated meter reader and method are provided suitable for monitoring and recording the data output of 4 a utility meter, such as a gas, water or electricity meter. The meter reader comprises a data logger, an isolation barrier, a regeneration unit a communication controller. The isolation barrier can be an optical isolator, providing electrical isolation greater than 10kV (rms). The invention removes the requirement for a separate isolation component, such as a chatterbox, to be placed between the data logger and the utility meter and provides a reader that is efficient and cost effective to install and maintain.

Net-bridge power meter

Abstract: The utility model relates to a net-bridge power meter, which comprises a power meter collection part and a special processing module. The meter simultaneously has a power line carrier communication interface, an RS485 communication interface and an infrared communication interface, wherein the power line carrier communication, the RS485 communication and the infrared communication interfaces can be mutually bridged to form a net bridge. A clock, an AD converter and a non-volatile data memory are integrated in the module to satisfy the requirements of ordinary single/three-phase meters, single/three-phase multiple fee-rate meters and single/three-phase carrier meters with the communication function in most regions. Through the function of communicating with power lines through the net bridge, the utility model can be easily compatible with various centralized meter reading systems.