Electricity meter

About: Electricity meter is a research topic. Over the lifetime, 7894 publications have been published within this topic receiving 42430 citations. The topic is also known as: electric meter & electrical meter.

Connectionless electrical meter for measuring voltage or power factor

Abstract: A connectionless electrical meter is described which is capable of measuring the power carried by a conductor at a voltage with respect to ground, or the power factor thereof, without the necessity for any ohmic connection between the meter and the circuit being measured. Conductor current is measured by magnetic induction with an openable transformer core which surrounds the conductor. A signal in-phase with the voltage is obtained by electrostatic induction. In certain embodiments of the invention, a unique voltage probe is used for obtaining a signal proportional to the conductor voltage. Apparatus described herein employing such voltage probe is additionally useful for measurement of voltage independently of power or power factor.

Digitized field electricity meter inspection system

Abstract: The utility model discloses a digitized field electricity meter inspection system. The system comprises a management function module, a data processing module and a power supply module, wherein the management function module comprises a single-board computer and a display screen, and the data processing module comprises a pulse acquisition module, an error processing module, a network interface chip, a network physical chip and a digital standard meter or a digital signal source for providing standard electric quantity. The pulse acquisition module acquires the power pulse outputted by an inspected electricity meter, and the error processing module is connected with the pulse acquisition module and the digital standard meter or the digital signal source to receive the power pulse and reference electric quantity of the inspected electricity meter, work out a corresponding error value and transmits the error value to the management function module for storage and management. The utility model can inspect digitized electricity meters.

Augmenting an Assisted Living Lab with Non-Intrusive Load Monitoring

Abstract: The need for reducing our energy consumption footprint and the increasing number of electric devices in today’s homes is calling for new solutions that allow users to efficiently manage their energy consumption. Real-time feedback at device level would be of a significant benefit for this application. In addition, the aging population and their wish to be more autonomous have motivated the use of this same real-time data to indirectly monitor the household’s occupants for their safety. By breaking down aggregate power consumption into its components, Non-Intrusive Load Monitoring provides information on individual appliances and their current state of operation. Since no additional metering equipment is required, residents are not confronted with intrusion into their familiar environment. Our work aims to depict an architecture supporting non-intrusive measurement with a smart electricity meter and the handling of these data using an open-source platform that allows to visualize and process real-time data about the total energy consumed. As a case study, we describe a series of measurements from common household devices and show how abnormal behavior can be detected.

An enhanced power meter for SPICE2 circuit simulation

Abstract: An enhancement to a technique presented by S.M. Kang (IEE J. Solid-State Circuits, vol.SC-21, p.889-91, Oct. 1986) for measuring average power dissipation during a SPICE circuit simulation is described. A modified power meter circuit is discussed that allows power measurement during an arbitrary interval of time, holds a constant final value at the end of the sampling interval, and improves the resolution of the technique. Simulation results comparing the modified power meter with the original power meter are presented to verify the modification. An optional modification to provide for a variable power supply voltage is also included. >

Electricity consumption interactive terminal prepaid system

Abstract: The invention provides a smart interactive terminal electricity consumption prepaid system comprising a smart electricity meter, a collector, a GPRS (general packet radio service) network and a server, and a smart socket and a smart interactive terminal are added in the system, wherein the smart socket and the smart electricity meter are arranged at a user end; the collector, the smart interactive terminal and the server are arranged at an electric power charging management end; and electricity consumption information of users is transferred to the smart interactive terminal by the GPRS network or carriers and the prepaid treatment and the electricity consumption management are conducted. In the prepaid system, information of each electricity consumption device, such as electricity consumption, current, voltage, active power and the like can be acquired by utilizing the smart socket; the information can be transferred to the collector, the smart interactive terminal and an electric power marketing system in an electric power carrier way; and an external Unionpay card swiping keyboard is utilized for swiping a card and inputting a password and electricity purchasing amount, and the smart interactive terminal is used for transferring the information and data to the marketing system, thereby realizing the purpose of purchasing the electricity by local payment. The prepaid system can be widely applied to the prepayment of the electricity consumption terminals.