摘要：
自从 1858 年英国人，发明了原始的机械扳手交通灯之后，随后的一百多年里，交通灯改
变了改变了交通路况，也在人们日常生活中占据了重要地位，随着人们社会活动日益增加，
经济发展，汽车数量急剧增加，城市道路日渐拥挤，交通灯更加显示出了它的功能，使得交
通得到有效管制，对于交通疏导，提高道路导通能力，减少交通事故有显著的效果。
近年来，随着科技的飞速发展，电子器件也随之广泛应用，其中单片机也不断深入人
民的生活当中。本模拟交通灯系统利用单片机 STC89C52 作为核心元件，实现了通过信号灯
根据区域车流现实对路面状况的智能控制。从一定程度上解决了交通路口堵塞、车辆停车等
待时间不合理、急车强通等问题。系统具有结构简单、可靠性高、成本低、实时性好、安装
维护方便等优点，有广泛的应用前景。
本模拟系统由单片机硬/软件系统，两位 8 段数码管和 LED 灯显示系统。和复位电路控
制电路等组成，较好模拟了，交通路面的控制。
关键词：交通灯 单片机 数码管
Abstract：
In 1858, since the invention of primitive mechanical a wrench to the traffic
lights, the more than a hundred years, the traffic lights changed to change the
traffic and transport in their everyday lives as an important position, increasing
social and economic development and the car has drastically increased, the roads
are crowded, and the traffic lights more of its functions, the effective control,
for otherwise, the road leading to improve the capability to reduce traffic accident
is a notable
In recent years, as technology evolved, eelctronic pieces also widely used,
which are monolithic integrated circuits into the life of the people of the traffic
lights. the simulation system as a core element of monolithic integrated circuits
stc89c52 made by the light on the basis of regional traffic stream reality of the
road conditions of the intelligent control. from the extent to solve the traffic
congestion or vehicle parking at the waiting time is not reasonable, is a car with
the problems. System has a simple structure, high reliability, costs and timely,
and install safeguard it conveniently advantages of a wide application prospect.
The analog systems it is monolithic integrated circuits software system, two
of 8 the tube and the system led display. and unset control of electrical circuits,
simulations, and the road. traffic control
