基于 PLC 智能交通灯监控系统的设计徐春阳[摘 要]针对我国城市交通拥堵现状，在监控系统设计中采用可编程控制器(PLC)设计了一种智能交通灯监控系统，以解决交通拥堵问题。在交叉口相应位置嵌入传感器线圈，对该段交通流量进行统计，并根据交通流量的变化改变绿灯的监控时间。实时合理配置绿灯资源，提高交叉口的通行能力。采用 PLC300FX 系列 PLC 设计了十字路口倒计时交通灯控制系统的硬件系统和软件系统。该交通灯控制系统在每个交叉口都有固定的工作周期，并通过7 根数码管倒计时显示出相应灯的剩余时间。此外，当道路拥挤时，中央控制中心可以智能地调整交通灯的工作周期。[关键词]智能交通灯；监控系统；PLC；十字路口；车流量Design of Intelligent Traffic Light Monitoring System Based on PLCXu ChunyangAbstract：In view of the current situation of urban traffic congestion in China, an intelligent traffic light monitoring system is designed by using programmable logic controller (PLC) in the design of monitoring system to solve traffic congestion. Embedded sensor coils in the corresponding position of the intersection, the traffic flow on this section is counted, and the monitoring time of the green light is changed according to the change of traffic flow. Real-time rational allocation of green light resources can be made, and the traffic capacity of the intersection can be improved. The hardware system and software system of traffic light control system with countdown display at intersection are designed with Mitsubishi FX series PLC. The traffic light control system has a fixed working cycle at each intersection, and shows the remaining time of the corresponding lights by Countdown with seven digital tubes. Moreover, the central control center can intelligently adjust the working cycle of traffic lights when the road is crowded.Keywords：intelligent traffic lights; monitoring system; PLC; intersection; traffic flow目录第一章、...
