交通信号灯故障检测系统设计与实现

针对现有交通控制系统无法实现信号灯故障自主检测与报警的缺陷,提出一种交通信号灯故障检测系统的设计方案。该系统通过采集信号灯电流信息监控其工作状态,并采集信号机控制信号,对不同优先级的信号灯故障进行逻辑判别与容错,生成故障报文,经GSM网络发送至交通监控中心。外场实验表明,该系统能够快速、准确定位故障信号灯位置与故障类别,在10分钟内进行故障报警,具有良好的稳定性,可作为智能交通设施可靠性监控系统的组成部分。

Design and implementation of the traffic lights fault-detection system

In view of the defects of existing traffic control system in detecting fault of traffic lights and Manning fault message, this paper proposes a traffic lights fault-detection system. This system monitors traffic lights＇ working status according to current information and control signals. The MCU logically judges faults of traffic lights in terms of obtaining information and forms alarm message, which will be send to traffic monitoring center via GSM network. Extensive filed experiments show that the proposed detection system can be fast and accurate to detect lights＇ location and fault, and alarm in lOminutes. It has good stability and can be used as an effective component to intelligent traffic facilities monitoring system.