人行横道LED指示灯设计(精).doc

人行横道LED指示灯设计学院:专业:姓名:指导老师:信息学院自动化学号:职称:薛俊文中国·珠海二○一三年五月诚信承诺书本人郑重承诺:本人承诺呈交的毕业设计《人行横道LED指示灯的设计》是在指导教师的指导下,独立开展研究取得的成果,文中引用他人的观点和材料,均在文后按顺序列出其参考文献,设计使用的数据真实可靠。本人签名:伍岩日期:2013年5月1日人行横道LED指示灯的设计摘要近几年随着社会科技各个方面的发展越来越快,交通渐渐的在人们生活中占据了主要的位置。越来越多的人开始有了自己的代步工具,从而使得交通越来越不顺畅。许多大城市开始面临的交通问题越来越严重,加上人们的社交活动越来越频繁,出游、办事各个方面,使得交通占据着至关重要的地位。交通信号灯的出现,使得交通得以有效的管制。单片机作为计算机的一个重要的分支,随着单片机的不断发展,开始不断应用到生活越来越多的地方,在交通信号灯的方面也起着至关重要的作用。本系统采用单片机AT89C51为中心来设计人行横道的信号灯。用单片机89C51的PI口的输出来控制红绿黄灯的亮灭,使用数码管来显示红绿黄灯闪烁的时间。软件上采用单片机c语言来编程,主要编写了主程序,数码管显示红绿黄灯时间的程序,一些延时程序等。经过整机调试,实现了对十字路口交通灯的模拟。关键词:单片机,80C51,PI口,交通灯ThecrosswalkLEDindicatordesignAbstractInrecentyearswiththedevelopmentofallaspectsofsocialscienceandtechnologyfasterandfaster,upyamajorplaceinpeople',,coupledwithpeople'emorefrequent,travel,,,withthecontinuousdevelopmentofthesingle-chip,begantobeappliedtomoreandmoreplacesinlife,,yellow,greenlighting,anddigitalcontroltodisplaythered,yellow,,andwrotethemainprogram,LEDdigitaltubedisplayprogram,,toachieveasimulationofthetrafficlightsatthecrossroads..Keywords:microcontroller,80C51,PIporttrafficlights目录摘要···············································································1前言···············································································11、人行横道LED指示灯设计任务以及方案···········································································································································22、关于人行横道LED指示灯系统硬件的设计···················································································