Traffic signal lamp fault detection and alarm method

Abstract

The invention discloses a traffic signal lamp fault detection and alarm method. The method comprises the steps that: multi-region division is performed on each lamp panel of an LED traffic signal lamp, a corresponding monitoring circuit is set at each region and lamp signal input power supply, so that the monitoring of the voltage and current of each divided region and lamp signal input power supply can be achieved; a corresponding information processing module, a Beidou/GPS positioning module and an LTE communication module are configured in a whole lamp set, wherein the information processing module is used for carrying out fault analysis, research and judgment on the received voltage and current information detected by each voltage and current sensor; Compared with an existing traffic signal lamp fault detection method, the method enables a user to know the fault condition of a traffic signal lamp more meticulously, and reasonably arrange maintenance work according to the damage degree of the traffic signal lamp; when the traffic signal lamp has small faults which however do not affect normal use, maintenance personnel can handle other emergency maintenance work in advance, blind maintenance work arrangement is avoided, and maintenance work is more efficient.

Description

technical field [0001] The invention belongs to the field of traffic signal systems, in particular to a method for fault detection and alarm of traffic signal lamps. Background technique [0002] The traffic signal system is a necessary means of modern urban traffic management. The permission to pass and prohibit the road will eventually be prompted to the traffic participants through the different states (light colors) displayed by the traffic lights; Whether its work is normal or not is directly related to whether the urban traffic operation can be kept orderly. [0003] With the rapid development of transportation technology, many methods for fault detection and alarm of traffic lights have appeared on the market, or through traffic signal controllers to detect traffic signal faults, or traffic signal lamps with self-configured fault detection circuits; [0004] These methods basically use real-time monitoring of the voltage or current of the traffic lights to judge the ...

AI Technical Summary

Problems solved by technology

[0004] These methods basically use real-time monitoring of the voltage or current of the traffic lights to judge the fault information, and send an alarm message in case of a fault. These fault detection methods are to judge the on-off situation of a single lamp panel or a whole group of signal lights. Larger defects, if used on road traffic lights made of early incandescent lamps or low-voltage halogen tungsten lamps, can still ensure the accuracy of detection; but used on traffic lights made of modern LED lamp beads, there will be deviations , such as: when individual or part of the LED beads in the LED traffic lights are not bright, some detection methods will judge it as a fault, and some will not judge it as a fault. This unstable judgment result will affect the maintenance of traffic facilities. The work has a greater impact (such as patents CN103337190B, CN103280117B, CN105374222B, CN106297360B, CN105427648B)

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