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.

Non-intrusive Zigbee power meter for load monitoring in smart buildings

Abstract: Energy efficiency in smart buildings requires distributed sensing infrastructure to monitor the power consumption of appliances, machines and lighting sources. The analysis of current and voltage waveforms is fundamental for gathering diagnostic information about the power quality and for reducing power wastage. Moreover, it enables Non-intrusive Load Monitoring (NILM), which is the process of disaggregating a household's total electricity consumption into its contributing appliances, by analysing the voltage and current changes. In this paper, an innovative full Energy-neutral (i.e. battery free) and Non-intrusive Wireless Energy Meter (NIWEM) is presented to measure current, voltage and power factor. As key features, the NIWEM is completely non-invasive and it can self-sustain its operations by harvesting energy from the monitored load. It also features a standard (Zigbee) wireless interface for communication with the smart-building system. Experimental results have confirmed that complete energy sustainability can be achieved also with very low-power loads.

Detection of Electric Power Diversion

Abstract: Techniques for detecting electrical meter bypass theft are described herein. In one example, a time-series of voltage-changes and current-changes associated with electrical consumption measured at a meter are obtained. The time series may track associated voltage and current changes at short intervals (e.g., 5- minutes). The voltage and current changes may indicate a slight voltage change when an appliance is turned on or off. An analysis (e.g., a regression analysis) may be performed on the voltage-changes against the current-changes. Using the correlation from the analysis, it may be determined if the meter was bypassed.

Electronic Energy Meter with Instant Billing

Abstract: This paper presents automated billing of energy meter. It is just like postpaid mobile connection. In the proposed work, the front end is user friendly and one can work on this software with minimum knowledge of computers and can read the meter by sitting in the office. This is useful for billing purpose in electricity board authority. A GSM modem is connected to the energy meter. Each modem will be having its own sim (ususal mobile phone sim). A PC is connected to other modem, which contains the data base. The module is designed such that user can have the complete usage details about the energy meter. Just like postpaid mobile connections, one can know our due bill instantly and can even pay for it. The SIM card used is implemented in energy meter and it sends a message to the user about the due bill. A LCD is used in the hardware module for the user interface. The LCD displays the current usage and units consumed. After the usage of each unit the amount and total units will be incremented whenever user wants to know his/her bill he/she can message a given code to sim card attached to the meter and can know his/her present bill. The user can pay the amount just by knowing the given code which is fed in the meter.

Multifunction register enclosure for energy meter

Abstract: An electronic time of use or demand register is provided for selective addition to a watthour meter in an energy meter. The electronic register is configured for parallel mounting beside the watthour meter to minimize space and includes an integral register enclosure for properly assembling and securing various components in positive operational relationships such as positioning the optical detection assembly relative to the rotating castellated shutter and in turn positioning the optical communications link relative to the optical detection assembly. The register enclosure additionally includes integral means for mounting the electronic register within the energy meter and for selectively adding and positioning a plurality of optional features.