DC electric inspection system and method based on MEMS electric field sensor

Abstract

The invention discloses a DC electric inspection system and method based on an MEMS electric field sensor. The MEMS electric field sensor is used for measuring a static electric field of a DC transmission line; the MEMS electric field sensor is electrically connected with an STM32 central processing control module through a signal processing module; the MEMS electric field sensor is processed through the signal processing module to obtain a digital signal without interference; the signal processing module is electrically connected with a Bluetooth wireless module through the STM32 central processing control module; the STM32 central processing control module is electrically connected with a sound-light alarm module through the Bluetooth wireless module. The system and the method are advantaged in that the MEMS electric field sensor is processed through the signal processing module to obtain the digital signal without interference, electromagnetic interference on a DC transmission loopis avoided, error determination is avoided, an electric field signal is acquired by the STM32 central processing control module, the sound-light alarm module realizes electric reminding, operation complexity of electric inspection operation is simplified, an electrification state of DC equipment can be accurately detected, timely alarm is achieved, and simple operation and strong anti-interferenceability are achieved.

Description

technical field [0001] The invention relates to the technical field of direct current electrometry, in particular to a direct current electrometry system and method based on a MEMS electric field sensor. Background technique [0002] Operation maintenance is an important means to grasp the operation status of live equipment and to discover and deal with equipment defects in time. According to the relevant national safety regulations, before working on some electrical equipment that is powered off or installing a grounding wire at the bottom of the blackout work, it is necessary to strictly check whether the equipment or line is sure that there is no voltage, so as to prevent the live line from hitting the ground wire and accidentally touching the live equipment, etc. Accidents happen to ensure the safety of construction operations. Compared with AC transmission lines, DC transmission lines have the advantages of low line cost and small line active loss when transmitting the...

AI Technical Summary

Problems solved by technology

[0005] This application provides a DC electrical inspection system based on MEMS electric field sensors to solve the problem that in the existing non-contact DC electrical inspection system, wire contact electrical inspection is still used. When there are many DC transmission circuits, the wires may touch the upper layer and the line at the same time. , and is subject to electromagnetic interference on the circuit, resulting in misjudgment, even electroscope breakdown, damage to drones and other accidents, causing technical problems such as phase-to-phase flashover of DC transmission lines and other major safety accidents

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