Intelligent electric meter anti-theft system

Abstract

The invention discloses an intelligent electric meter anti-theft system which comprises an intelligent electric meter and a processing main station. The intelligent electric meter comprises a controller and also comprises a cover opening detecting module, a current sampling module, an alarm module and a data transmission module connected to the controller. The cover opening detecting module detects whether a cover of the intelligent electric meter is opened and records a time when the intelligent electric meter is opened. The current sampling module is connected to a phase line and a neutral line of the intelligent electric meter and simultaneously collects phase line and neutral line current values. The data transmission module data of the intelligent electric meter is connected to the processing main station, and the processing main station has an electricity stealing judgment module. According to the system, by sending detection and sampling data to the processing main station, whether electricity stealing occurs is judged through the electricity stealing judgment module of the processing main station, and a judging method is that an electricity stealing event is judged when phase line and neutral line current are unbalanced and the intelligent electric meter is opened before the current imbalance. Whether the electricity stealing event occurs is more intuitively and accurately judged, and unnecessary misjudgment is avoided.

Description

technical field [0001] The invention relates to an anti-stealing system for an intelligent electric meter. Background technique [0002] Electricity is one of the main energy sources in production and life. The existing power metering method is mainly realized by installing an electric meter at the user end. Electricity theft occurs frequently by changing the electric meter. The smart electric meter is the intelligent terminal of the smart grid. , the existing anti-stealing smart meters are usually equipped with an open cover alarm module, by detecting whether the cover of the smart meter is opened, if it is opened, it will be judged that there is a stealing behavior, and an alarm will be issued. However, the cover of the smart meter is Opening does not directly prove the occurrence of electricity theft. For example, maintenance personnel need to open the cover of the smart meter for daily maintenance. The smart meter may trigger the cover-opening alarm module due to vibrati...

AI Technical Summary

Problems solved by technology

[0002] Electricity is one of the main energy sources in production and life. The existing power metering method is mainly realized by installing an electric meter at the user end. Electricity theft occurs frequently by changing the electric meter. The smart electric meter is the intelligent terminal of the smart grid. , the existing anti-stealing smart meters are usually equipped with an open cover alarm module, by detecting whether the cover of the smart meter is opened, if it is opened, it will be judged that there is a stealing behavi

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