Intelligent Traffic Light Control System Based on Ultrasonic Counting

Based on the theory of ultrasonic ranging,this article introduced an intelligent traffic light control system that can dynamically adjust the passing time according to the real-time traffic flow.The system uses MSP430 singlechip as its control core.According to the related algorithm,it converts the output signal of the ultrasonic ranging module into vehicle signal,calculates out the traffic flow in a driveway of a fixed distance at that time and dynamically adjusts the passing time.In this way,the efficiency of traffic intersection is improved and the problem of traffic congestion relieves.The system also introduces a manual control module so as to cope with serious traffic jam.