Metro stray current wireless monitoring system and method

Abstract

The invention discloses a metro stray current wireless monitoring system and a metro stray current wireless monitoring system method. The metro stray current wireless monitoring system comprises a monitoring center, a ZigBee wireless network and n intelligent sensors, wherein the monitoring center is used for monitoring states and parameters of each metro stray current monitoring point, the ZigBee wireless network comprises one ZigBee coordinator and n ZigBee routers, the ZigBee coordinator is in communication connection with the n ZigBee routers, each ZigBee router is used for monitoring one metro stray current monitoring point, each intelligent sensor is used for collecting data of one metro stray current monitoring point, the monitoring center is in communication connection with the ZigBee coordinator, and the n ZigBee routers are correspondingly connected with the plurality of intelligent sensors respectively. Through a ZigBee wireless network technology, intelligent monitoring of a metro stray current is achieved, cost is low, and the metro stray current wireless monitoring system is convenient to use.

Description

technical field [0001] The invention relates to a current monitoring system, in particular to a subway stray current wireless monitoring system and method, belonging to the technical field of subway power supply safety monitoring. Background technique [0002] The subway provides power to the EMUs through the DC traction power supply system. Newly built urban underground rail transit lines, after running for a period of time, the track insulation will be damaged by underground moisture, water seepage, dust, oil pollution, etc., which will easily reduce or invalidate the good track-ground insulation degree when it is put into operation, resulting in large ground-to-ground stray current. The underground metal pipe network in the city is dense, and the leakage current will flow through the underground metal pipe network, which will cause corrosion of steel bars and pipes, causing great harm and damage, and will definitely pose a great threat to driving safety. The United Stat...

AI Technical Summary

Problems solved by technology

Since the signal monitoring points are very scattered, data transmission must be carried out through long-distance cables, which can easily cause attenuation and external interference to small signals, resulting in low data acquisition accuracy, which does not meet the technical requirements of distributed data acquisition systems. At the same time, each set of equipment is connected to monitor The number of points is small, and centralized monitoring devices need to be installed in multiple places, which is not conducive to the macroscopic monitoring of the entire line, and the investment is relatively large

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