基于单片机的智能交通灯控制系统设计与实现

基于单片机的智能交通灯控制系统设计与实现XXXXXX毕业设计诚信承诺书本人郑重承诺：本人承诺呈交的毕业设计《基于单片机的智能交通灯控制系统设计与实现》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：日期：年月日XXXXXX毕业设计基于单片机的智能交通灯控制系统设计与实现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，单片机往往作为一个核心部件来使用，仅单片机方面知识是不够的，还应根据具体硬件结构软硬件结合，加以完善。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。本系统采用STC89C52RC单片机以及单片机最小系统和74HC245电路以及外围的按键和数码管显示等部件，设计一个基于单片机的交通灯设计。设计通过两位一体共阴极数码管显示，并能通过按键对定时进行设置。本系统实用性强、操作简单、扩展功能强。关键词：交通灯；单片机；显示；计时；车流量XXXXXX毕业设计DesignandimplementationofintelligenttrafficlightscontrolbasedonMCUAbstractInrecentyearsalongwiththerapiddevelopmentofscienceandtechnology,SCMapplicationsarecontinuallydeepening,andpromotethetraditionalcontroldetectiontechnologyisupdated.Inreal-timedetectionandautomaticcontrolofthemicrocomputerapplicationsystem,themicrocontrollerisoftenusedasacorecomponent,onlySCMknowledgeisnotenough,shouldbebasedonspecifichardwarestructureofhardwareandsoftwarecombination,tobeperfect.Crossroadsshuttlevehicles,pedestriansbustling,cardealershiptrafficlane,peoplewalkways,everythingingoodorderandwellarranged.Sowhattorelyontorealizeitinorder?Isthetrafficlightsontheautomaticcommandsystem.Alotoftrafficsignalcontrol.ThissystemusesSTC89C52RCand74HC245systemandthesmallesttransistordrivingcircuitandaperipheryofthekeysanddigitaltubedisplayandotherparts,adesignbasedonthesinglechipdesignoftrafficlights.Designthroughoneoftwocommoncathodenixietubedisplay,andcanbekeytoregularset.Thissystemispractical,simpleoperation,strongexpandingfunction.Keywords:Trafficlight，SCM，Display，Timing，TrafficflowXXXXXX毕业设计目录1前言...............................................................................................................................................11.1本设计的目的及意义................................................................................................................11.2本设计在国内外的发展概况及存在的问题............................................................................21.3本设计应解决的主要问题........................................................................................................32方案介绍.......................................................................................................................................32.1设计原理...................................................................................................................................32.2方案选择...................................................................................................................................42.3分析问题...................................................................................................................................53硬件设计.......................................................................................................................................73.1系统硬件总电路构成:..............................................................................................................73.2单片机系统及其历史................................................................................................................73.3单片机内部组成以及引脚介绍................................................................................................83.4单片机最小系统.....................................................................................................................103.5LED显示.................................................................................................................................123.6数码管显示.............................................................................................................................133.7信号显示驱动电路..................................................................................................................153.8键盘输入电路.........................................................................................................................153.9红外接收原理.........................................................................................................................164软件设计.....................................................................................................................................174.1定时器的设置.........................................................................................................................184.2中断程序的设置.....................................................................................................................185调试.............................................................................................................................................185.1断电调试.................................................................................................................................185.2通电调试.................................................................................................................................195.3功能部分的测试.....................................................................................................................196结论.................................................................................................