PLC在模糊智能交通控制系统中的应用

针对目前城市车辆剧增和交通拥挤的现象，设计一种基于PLC控制的模糊交通控制系统。该系统选用电感式传感器探测车辆的通过，用PLC内高速计数器对车辆数量进行计数。运用一定的模糊智能控制原则，PLC就能依据车流量的情况自动调节红绿灯的时间长度，从而提高交通控制效率，缓解交通拥挤，达到最优控制。在某城市十字交通路口实验表明，该方法可以很大程度上解决城市车辆交通问题，是一种新型的智能化设计方法，具有推广应用价值。

The Application of PLC in Fuzzy Intelligent Transportation Control System

In the present there is vehicles growing rapidly and traffic congestion at most city, so we designed the application of PLC in fuzzy intelligent transportation control system. Used ectromagnetic induction to detect vehicles in this system, the high speed counter carries on with PLC counted the vehicles, and utilized the intelligent control principle. So PLC will be able to automatically adjust the length of time for traffic lights based on the flow which according to fuzzy control, the system enhances the efficiency of traffic control, alleviates traffic congestion, and achieves optimal control. After experimenting the method at some cross-traffic intersection of the city, all the results show that the method can largely solve the traffic problems of city vehicles which are a new type of intelligent design method, with the value of popularization and application.