1、- 1 - 毕业设计（论文）毕业设计（论文） 题目题目：十字路口智能交通灯十字路口智能交通灯 - 2 - 摘要 本系统由单片机系统、键盘、LED 显示、交通灯演示系统组成。 系统包括人行道、左转、右转、以及基本的交通灯的功能。系统除基 本交通灯功能外，还具有倒计时、时间设置、紧急情况处理、分时段 调整信号灯的点亮时间以及根据具体情况手动控制等功能。 随着社会 经济的发展，城市交通问题越来越引起人们的关注。人、车、路三者 关系的协调，已成为交通管理部门需要解决的重要问题之一。城市交 通控制系统是用于城市交通数据监测、 交通信号灯控制与交通疏导的 计算机综合管理系统， 它是现代城市交通监控指挥系统
2、中最重要的组 成部分。 关键词：单片机；交通灯；控制器 AbstractAbstract The system is composed of SCM system, keyboard, LED display, light demo system composition. System include pavements, turn left, turn right, and basic functions of the traffic lights. System besides basic traffic lights function outside, still have the co
3、untdown, time setting, emergency treatment, in different period of time and adjust the light according to the specific conditions of manual control etc. Function. With the development of social economy, urban transportation problem and has attracted the attention of people. People, vehicles and road
4、 relationship coordination, has become the transportation management department needs to solve one of important issues. Urban traffic control system is designed for urban traffic data monitoring, traffic light control and traffic persuation computer integrated management system, it is the modern urban traffic control command system. Keywords: SCM, Traffic lights, controller - 3 - 目录 摘 要-1 Abstract-1 引 言-3 第一章 方案论证与设计-4 第二章 系统硬件设计-7 2.1 总体设计-7 2.2 单片机基本结构-7 2.3 单片机最小系统-10 2.3.1 时钟电路-10 2
