Self diagnosis method and device for faults of traffic signal control machine

Abstract

The invention discloses a self diagnosis method and device for faults of a traffic signal control machine, belonging to the technical field of intelligent traffic control and management. The self diagnosis device comprises a semaphore control main board, a communication module, multiple traffic parameter detection boards, multiple lamp driving boards and an intelligent fault detection and diagnosis board. The intelligent fault detection and diagnosis board comprises a level switching module, a data analysis module, a communication interface and a display interface; and the data analysis module in the intelligent fault detection and diagnosis board can be used for detecting the working conditions of the traffic parameter detection boards, the semaphore control main board and the lamp driving boards in real time, and also can realize phase collision detection at intersections simultaneously. The traffic control semaphore with a self fault diagnosis function provided by the invention can effectively monitor the traffic control semaphore in real time, and is convenient for workers to understand and deal with traffic control conditions in real time.

Description

technical field [0001] The invention belongs to the technical field of intelligent traffic control and management, and relates to a traffic control signal machine capable of diagnosing faults and a diagnostic method. Background technique [0002] The traffic control signal machine is an important device for controlling the traffic signal at the intersection, and it is an important part of the traffic signal control system. Various traffic control schemes are finally realized by the traffic control signal machine. At present, in the traffic management of most cities in our country, traffic control signals have been widely used to control traffic signals at intersections. The size of its role will have the most direct impact on the scientificity and effectiveness of urban traffic management. [0003] Because the traffic control signal machine is installed at the intersection of the city, the working environment is harsh, and it is easy to be disturbed by the outside world, wh...

AI Technical Summary

Problems solved by technology

[0004] Most of the existing traffic control signals pay more attention to the realization of the control function of the signal during the design and production process, but less consideration is given to the fault diagnosis technology of the signal, which cannot well meet the needs of the actual working environment

Some traffic control signals with fault detection function generally do not have an independent fault detection module, but are integrated into the signal controller, so once the signal controller fails to operate, the fault detection function will also fail, failing to achieve fault detection and diagnosis function, and the type of detection fault is single, generally only the detection of green conflict faults

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