一直以来，传统的红绿灯是采用固定时长方式进行路面交通控制，是成熟有效的系统，具有通行效率不高的缺点。为优化路口的车辆通行，本文设计了一种自动感知的交通光控制器系统(ATLC)，对道路交通流进行了研究。该方法利用通行高峰和低谷不同数据，可以有效地减少非高峰时段的等待时间，包括紧急情况和VIP车辆通行以及行人的安全也都可考虑在内。本文设计的低成本自动交通灯控制系统，为地面通行提供了稳定的交通流量。该系统利用VHDL语言进行开发，使用时序仿真进行测试。该系统能够检测不同时刻车辆通过率，调节相对应的交通灯时间长度随之变化，实现对红绿灯的智能调节。利用此智能调节控制路面交通，可使主支干道协调配合，从而提高路口的通行效率。 For all the times, the traditional method of fixed length of traffic light for road traffic control has long been a proven and effective system, but it has the disadvantage of low traffic efficiency. In or-der to optimize traffic at intersections, a traffic light controller (ATLC) system based on flow sensing is studied, and the traffic flow is discussed. This method takes advantage of peak and slump trough traffic slots to effectively reduce waiting times during off-peak hours, including emergencies and VIP vehicle passes and pedestrian safety. The low-cost automatic traffic light control system de-signed in this paper provides a stable traffic flow for ground traffic. The system is developed with VHDL and tested by time series simulation. The system can realize the intelligent regulation of the traffic light, detect the arrival rate of vehicles at different times, so that the corresponding length of the traffic light configuration time changes accordingly, so as to intelligently regulate and control the road traffic, so that the main and branch roads coordinate, thus improving the efficiency of the intersection.