基于FPGA的交通信号灯控制系统设计

摘要

为了使交通信号灯系统针对车流量变化做出有效应对，设计了一种智能交通信号灯控制系统。该系统结合道路传感器反馈的车流信息，采用有限状态机实现了交通信号灯全感应自适应控制方案，得到最优信号灯转化和时间分配。该系统采用FPGA设计，结合成都科华北路复杂交通路口车辆统计信息，对该系统进行仿真和验证。结果表明，该系统能减少17.550%的车辆平均延误时间，保障交通顺畅，提高了效率。%In order to respond to the change of traffic flow timely,an intelligent transportation system for traffic light controller is designed. Depending on traffic information from sensors and employing finite state machine ,this sys⁃tem can realize a full induction adaptive control scheme of traffic light. It achieves the optimal control of states and traffic signal timing plan. This system adopts FPGA device to improve speed and performance. It is verified by traf⁃fic statistical data of Chengdu Kehua Road North. The simulation shows that this system can decrease vehicle aver⁃age delay time by 17.550%and improve transportation efficiency.