摘 要近年来随着科技的飞速进展，交通灯在交通控制和管理方面起着越来越重要的作用。十字路口车辆穿梭，行人熙攘，车行车道，人行人道，有条不紊。那么靠什么来实现这井然秩序呢？靠的就是交通信号灯的自动指挥系统。交通信号灯控制方式很多。 本设计结合城乡交通的实际情况阐述了交通灯控制系统的工作原理，并给出了一种简单有用的交通灯数字控制的电路设计方案。本系统有用性强、操作简单、扩展功能强。关键词：交通灯，单片机，数码显示 AbstractWith the rapid development of science and technology in recent years,The traffic light has becoming increasingly important in traffic control and management.Crossroads shuttle vehicles,pedestrians bustling,car dealers driveway, People walkways,methodical.Then rely on to achieve this discipline of the order of It?Is the traffic lights by the automatic control system. Traffic signal control many ways. Based on the actual traffic situation in urban and rural areas,this design expounds the operational principles of control system of traffic light and give a simple and practical circuit design of digital control of traffic light.The system practical,simple,extending strong function.Keywords ：Traffic light.Pulse signal generator.Timer,Deconder 摘 要..................................................IAbstract....................................................II第1 章 绪 论.........................................11.1 课题背景...........................................................................................11.2 目的意义...........................................................................................21.3 技术要求...........................................................................................21.4 本章小结...........................................................................................2第2 章 设计方案......................................3第2 章 设计方案......................................32.1 设计方案选择.........
