System and method for automatic fault detection and processing of traffic signal lights

Abstract

The invention relates to a system and method for automatic fault detection and processing of traffic signal lamps, including traffic signal lamps, a current and voltage detection module, a protection control module, a signal lamp drive control module, a signal lamp processor, a signal machine central processor and a traffic monitoring center; At this time, the signal machine no longer simply cuts off the power supply of the signal light and independently drives the yellow light to control the yellow flashing, but sends a degraded control command to the signal light, starts the short-term software yellow flashing control, and automatically detects the faulty signal light and activates it. Second-level protection control mode, and send fault information to the superior, and finally realize the normal signal control of the entire intersection. The secondary protection control module for signal light control of the present invention realizes the backup of signal light control functions, effectively improves the stability and reliability of signal light control, and well avoids the impact of long-term yellow flash control on traffic.

Description

technical field [0001] The invention relates to the field of traffic signal machines, in particular to a system and method for automatic fault detection and processing of traffic signal lights. Background technique [0002] With the increase of urban road construction and the number of motor vehicles, road traffic problems have increasingly become the focus of social attention. The control of signal lights separates conflicting traffic flows in time, and through the method of time-sharing release, the safety and order of traffic at road intersections is guaranteed, and the traffic efficiency is improved. When the signal lights fail, it is easy to cause traffic jams at traffic intersections, and even cause traffic accidents. The control of visible signal lights plays an extremely important role in alleviating road traffic problems. However, signal lights are installed at traffic intersections and are easily affected by natural factors, and they are in working condition for ...

AI Technical Summary

Problems solved by technology

However, because the emergency measures of the signal machine for the above-mentioned serious faults are simple degraded yellow flashing control, which belongs to hardware degraded yellow flashing control, once it is degraded, it will not be restored, and the entire intersection will fall into no signal control

Due to the different personal qualities of motor vehicles and non-motor vehicles, the traffic at the intersection will also become chaotic, seriously reducing the traffic capacity of the intersection, causing traffic jams and traffic accidents.

Although the signal machine has the function of detecting and reporting the failure of the signal lamp, it can remind the supervisors to deal with the fault problem in a timely manner, but the installation location of the signal light is far away from the traffic monitoring center and other objective reasons. From the fault report to the fault resolution, it takes at least 1~2 Hours, if encountering special circumstances such as busy maintenance personnel, traffic rush hours, bad weather conditions, etc., the time will be longer

The yellow flash control during the period is obviously not the best emergency plan

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