The invention provides an intelligent road traffic signal control machine. The intelligent road traffic signal control machine comprises a sidewalk red-green-yellow signal lamp group, a pedestrian sensor, a lane red-green-yellow signal lamp group, an exit sensor, an entrance sensor, a fixed cross rod and a PLC control system (PLC-programmable logic controller). According to the invention, the red signal defects that no automobile passes in the green signal direction and no automobile waiting for passing in the red signal direction when a traffic signal control machine is used can be overcome. According to the invention, a green signal duration parameter set by the PLC control system is matched with the difference of the counter to control the red and green signal lamps. No automobile passes in the counting interval in each direction, the difference of the counters is smaller than 1, the pedestrian sensor does not detect pedestrians, and the red signal lamp of the red-green-yellow signal lamp group keeps the red signal lamp on normally. When the difference of the counter in a certain direction is greater than or equal to 1, the red signal lamp is turned off and the green signal lamp is turned on; the green signal lamp is turned off and the red signal lamp is turned on only in a certain direction when the vehicle passing time reaches the green signal duration and vehicles or pedestrians waiting for passing exist in other directions. The method can be used for a road crossroad signal control machine, can reduce the time for waiting for red signals of an automobile and the number of parking times, and reduces idling fuel consumption.

    本发明提供了一种智能道路交通信号控制机,包括:人行道红绿黄信号灯组、行人传感器、车道红绿黄信号灯组、出口传感器、入口传感器、固定横杆、PLC控制系统(PLC‑可编程逻辑控制器)。本发明可解决在用交通信号控制机,绿色信号方向无汽车通行,红色信号方向等待通行汽车空等红色信号缺陷。本发明根据PLC控制系统设定绿色信号时长参数、计数器的差数相配合控制红绿信号灯。各方向计数区间内无汽车通行,计数器的差数小于1,行人传感器未检测到行人,红绿黄信号灯组都保持红色信号灯常亮。某方向计数器的差数先大于等于1时,熄灭红色信号灯,点亮绿色信号灯;汽车通行时间到绿色信号时长、其它方向有等待通行汽车或行人,某方向才熄灭绿色信号灯,点亮红色信号灯。本发明可用于道路十字路口信号控制机,可减少汽车空等红色信号时间和停车次数,减少怠速油耗。


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    Title :

    Intelligent road traffic signal control machine


    Additional title:

    智能道路交通信号控制机


    Contributors:

    Publication date :

    2022-01-14


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS



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