基于单片机的交通信号灯模拟控制系统设计目录摘要5ABSTRACT6前言7第一章单片机的概述.........................................................81.1单片机的简介.........................................................81.2单片机的发展历程.....................................................91.3典型的单片机产品....................................................10第二章单片机芯片的简介....................................................112.1MCS-51芯片的简介...................................................112.2数码管..............................................................132.2.1数码管的分类...................................................132.2.2数码管的结构...................................................13第三章交通灯的总体设计方案................................................153.1设计思想............................................................153.2实现方法............................................................153.3交通灯的管理方案论证................................................153.4系统的硬件设计....................................................163.4.1总体设计框图...................................................163.4.2硬件接线图.....................................................173.4.3单片机的最小系统图.............................................18第四章系统的软件设计.......................................................194.1计数器的硬件延时....................................................194.1.1计数器的初值计算...............................................194.1.2计算公式.......................................................194.1.31秒的方法.....................................................194.2软件延时............................................................204.3信号灯的显示........................................................214.4程序设计............................................................224.4.1控制流程图.....................................................224.4.2程序源代码.....................................................24第五章设计感想.............................................................27致谢.........................................................................28参考文献...................................................................29摘要近年来随着科技的飞速发展,单片机的应用正在不断深入,同时带动传统控制检测技术日益更新,在实时检测和自动控制的单片机应用系统中,单片机往往作为核心器件来使用。仅单片机知识是不够的,还应根据具体硬件软件结构结合来加以完善。交通信号灯控制方式很多,一个好的控制系统可以带来诸多的方便，选择实用的单片机更能让其发挥更大的功效。本系统就是采用MCS-51系列单片机AT89S51和可编程并行I/O接口芯片89s51位中心器件来设计交通灯控制器,AT89S51的引脚有更加强大的功能，更是兼容此系列的单片机，同时结合部分外围电路，实现了能根据实际车流量通过89S51的P1口设置红绿灯点亮时间的功能,红绿灯循环点亮,倒计时剩5秒时黄灯闪烁警告,本系统实用性强,操作简单,扩展功能强。关键词:交通灯MCS-51单片机ABSTRACTYearswiththerapiddevelopmentofscienceandtechnology.SCMapplicationaredeepeningatthesametimepromotemoretraditionalcontroldetectionupdate.Inreal-timedetectionandcontrolofthemicrocomputerapplicationsystem，themicrocontrollerisoftenusedasacorecomponent,onlytheSCMknowledgeisinadequateandshouldbebasedonspecifichardwarearchitecturehardwareandsoftwaretobeimproved.Manywaystocontroltrafficlights.Agoodcontrollabletrafficlightsystemcanb...
