本模拟系统由单片机硬/软件系统组成，利用单片机AT89S52作为核心元件，两位八段数码管显示倒计时间，发光二极管LED灯用来指示东西南北车辆通行状态，按键控制电路用来实现紧急或是特殊情况的处理，较好的模拟了交通路面的控制.-The simulation system consists of the MCU hardware/software systems, the use of single-chip AT89S52 as the core component, two eight digital tube display the countdown light-emitting diode, LED lights to indicate the North and South, East and West of vehicles. Status button control circuit used to achieve emergency orthe special case handling, preferably simulate the control of the traffic road.