利用定时中断实现数码管时间的跳动、一般时刻交通灯的自动控制。本次设计通过模拟一个十字路口的交通灯管理系统，在四个路口方向都设置有红黄绿三种指示信号灯，并根据和模仿实际交通情况设定一种自己设定的交通灯规则，最终通过应用51单片机控制交通灯各信号的亮灭，达到合理控制交通运行的功能。-Using timer interrupt time the beat of digital tube, the automatic control of the general time of traffic lights. Red yellow and green three design management system through the simulation of a crossroads, traffic lights, four intersection direction set the lights, and in accordance with and imitate the actual traffic conditions set one set of traffic lights rules, the final through the application of 51 single-chip control traffic lights signal light off, to achieve reasonable traffic control to run the function.