实现了南北东西式十字路口的交通灯控制，包括当有急救车通过时，禁止其他的车辆通行-Implementation of the north-south crossroads of East and West-style traffic lights control, including when the ambulance has passed, the prohibition of other vehicles

本系统采用MSC-51系列单片机ATSC51和可编程并行I/O接口芯片8255A为中心器件来设计交通灯控制器，实现了能根据实际车流量通过8051芯片的P1口设置红、绿灯燃亮时间的功能；红绿灯循环点亮，倒计时剩5秒时黄灯闪烁警示（交通灯信号通过PA口输出，显示时间直接通过8255的PC口输出至双位数码管）；车辆闯红灯报警；绿灯时间可检测车流量并可通过双位数码管显示。-The system uses MSC-51 series single-chip ATSC51 and programmable

使用的开发环境为matlab，本程序主要用于处理雷达采集到的数据，从而测量车辆等的速度，有很大的现实意义-Use the development environment of matlab, this procedure is mainly used for processing radar data collected, thus measuring the speed of vehicle and so on, have great practical significance