Comprehensive monitoring system and method for electrical safety of traffic signal device

Abstract

The invention provides a comprehensive monitoring system and method for electrical safety of a traffic signal device. The comprehensive monitoring system comprises a residual current transformer, a current transformer, a voltage acquisition module, a temperature sensor, an immersion alarm sensor, an execution signal output module, a touch screen display module, a communication module, a micro control unit MCU, and a power supply module and a signal amplification circuit which are connected with the micro control unit MCU, wherein the residual current transformer, the current transformer, the voltage acquisition module, the temperature sensor and the immersion alarm sensor are respectively in signal connection with the micro control unit MCU by the signal amplification circuit. According tothe invention, the potential safety hazard of an electrical line of the traffic signal device can be subjected to dynamic tracking monitoring management in real time, automatic power-on and power-offfunctions are achieved, electricity safety of the traffic signal device is improved, and the difficult problem that a residual current circuit breaker cannot be installed in an existing traffic signal control system is completely broken through, thereby meeting the requirements for electrical safety operation and modern management of the traffic signal control system.

Description

technical field [0001] The invention relates to the technical field of traffic signal safety monitoring, more specifically, to a comprehensive monitoring system and method for electrical safety of traffic signal devices. Background technique [0002] With the rapid development of the city, urban traffic signal devices are spread all over the intersections of urban roads, playing an irreplaceable role in the daily traffic life of citizens. Since the equipment is installed outdoors, electric leakage and electric shock accidents may occur in extreme weather conditions, and in severe cases, it may cause death. Therefore, the comprehensive monitoring and management of the safety of traffic signal devices has become an urgent problem to be solved by the urban traffic signal management department. [0003] The traffic signal device is characterized by wide distribution and the use of metal shell materials, so when the insulation of the power supply line of the traffic signal device...

AI Technical Summary

Problems solved by technology

Due to the frequent changes in the load of traffic signal devices, and the many branch lines are easily affected by external induced current pulses (such as lightning), the existing leakage protection devices cannot perform comprehensive dynamic tracking and monitoring of the changing leakage conditions. If a higher safety If the threshold value is lower, it may be impossible to achieve effective protection when leakage occurs; if the safety threshold is set lower, the leakage protector will easily malfunction

In addition to the above problems, the current leakage protection devices used in the electrical lines of urban traffic signal devices do not have the functions of remote monitoring, real-time processing and automatic reset, and cannot meet the requirements of safe electrical operation and modern management of traffic control systems.

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