Adaptive fault determination method for traffic lights
Adaptive fault determination method for traffic lights
- New search for: JIANG XUEMING
- New search for: LOU JIHAN
- New search for: WANG WEN
- New search for: JIANG XUEMING
- New search for: LOU JIHAN
- New search for: WANG WEN
The invention discloses a traffic signal lamp adaptive fault determination method. In order to solve the problems that an existing traffic signal lamp fault judgment mode is low in accuracy and cannot accurately and efficiently detect a countdown signal lamp fault, the method comprises the steps that an upper computer obtains a plurality of voltage and current value lists at regular time when all preset intersection lamp control loops are free of faults, and then a storage instruction is sent to a signal machine; the single-chip microcomputer of the signal machine receives the storage instruction and then writes the list into the single-chip microcomputer to serve as a reference comparison table; and the annunciator acquires real-time voltage and current values of the lamp control loops in real time, records the real-time voltage and current values as a real-time sampling list, and performs fault judgment according to the types of the lamp control loops. A traditional longitudinal static threshold comparison mode of single-loop voltage and current absolute values is abandoned; according to the method, a comparison table is established for multi-dimensional judgment, the accuracy of signal lamp fault detection is greatly improved, and the method also has obvious advantages in a fault judgment mode of the traffic signal lamp with a countdown function.
本发明公开了一种交通信号灯自适应故障判定方法。为了克服现有交通信号灯故障判断方式准确率低和无法实现对倒计时信号灯故障准确高效检测的问题，本发明包括上位机定时获取各预设路口灯控回路无故障时的若干电压、电流值列表，后向信号机发送保存指令；信号机的单片机接收保存指令后将列表写入单片机并作为基准对照表；信号机实时获取各灯控回路实时电压、电流值，记录为实时采样列表，根据各灯控回路类型分别进行故障判定。跳出传统的单回路电压、电流绝对值大小的纵向静态阈值比较方式；建立对照表从多维度判定，极大地提高了信号机灯故障检测的准确率，在对带倒计时功能的交通信号灯的故障判定方式中，也具有明显的优势。
Document information
Adaptive fault determination method for traffic lights
一种交通信号灯自适应故障判定方法
2023-10-03
Patent
Electronic Resource
Chinese
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