毕业设计说明书（论文）中文摘要随着时代的进步与社会的发展，经济的进一步提升越来越多的取决于交通网络的发达程度。其中交通灯在道路事业中占有举足轻重的地位，它直接影响到公路以及市区内的通车质量。交通关系着人们对于财产，安全和时间相关的利益。具有优良科学的交通控制技术对资源物流和人们出行都是十分有价值的，避免因无序和抢行等无控制原因造成的不必要阻塞甚至瘫痪，保证交通线路的畅通安全，才能保证出行舒畅，物流准时到位，甚至是生命通道的延伸。关键词单片机交通灯程序设计毕业设计说明书（论文）外文摘要TitleIntelligenttrafficlightcontroldevicedesignAbstractWiththedevelopmentoftimeeraandtheimprovementofthesociety，economicascensionisdependingmuchmoreonawell-developedtransportationnetwork.Trafficlightsplayavitalroleinthetransportationindustry,whichdirectlyaffectstheopenqualityofhighwayandroadsinurbanarea.Trafficsafetyiscloselyrelatedtopeople'spropertysecurityandtime.ThereforetheadvancedtrafficcontroltechnologyisofgreatvaluetothelogisticsresourceandPeople'stravel,whichavoidscutsinthecaseofvehiclesleadingtoroadparalysis.Inordertoensurecomfortabletravel,logisticsontimeinposition,andevenaccesstolifeextensionweneedtoensurethesmoothflowoftrafficsafety.KeywordsMicrocontrollerTrafficlightsProgramming本科毕业设计说明书（论文）第Ⅰ页共Ⅰ页目次1引言...............................................................11.1单片机概述.......................................................11.2单片机应用领域...................................................11.3单片机的发展趋势.................................................32系统功能和基本原理.................................................52.1系统功能.........................................................52.2系统基本原理.....................................................52.3交通灯的四种通行模式.............................................63方案设计与论证.....................................................93.1总体设计方案比较.................................................94芯片的选择与简介..................................................114.1AT89C52.........................................................114.2MAX232..........................................................124.3LED数码管.......................................................135系统硬件设计......................................................155.1硬件总体设计....................................................155.2各功能模块硬件设计与实现........................................156系统软件设计......................................................266.1软件总体流程图..................................................266.2软件主要程序....................................................277软硬件调试........................................................31结论.................................................................34致谢.................................................................35参考文献.............................................................36附录AProteus仿真图................................................37附录BProtel原理图.................................................38第1页共50页编号：时间：2021年x月x日书山有路勤为径，学海无涯苦作舟页码：第1页共50页1引言二十世纪跨越了三个“电”的时代，即电气时代，电子时代和现已进入的电脑时代。不过这个电脑，通常是指个人计算机，简称PC机[1-2]。它由主机键盘、显示器等组成。还有一类计算机，大多数人却不怎么熟悉。这种计算机就是把智能赋予...
