倒车防撞报警系统毕业设计定稿

学士学位论文基于单片机倒车防撞报警系统的设计姓名：齐侠学号：20105130429指导教师：缑亚楠学院：机电工程学院专业：机械设计制造及其自动化完成日期：2014年5月18日学校代码：10904学士学位论文基于单片机倒车防撞报警系统的设计姓名：齐侠学号：20105130429指导教师：缑亚楠学院：机电工程学院专业：机械设计制造及其自动化完成日期：2014年5月18日摘要随着科学技术的快速发展，单片机将在汽车领域中的应用越来越广。本文对单片机汽车防撞报警系统进行了理论分析，利用单片机结合超声波测距来实现系统功能。利用模拟电子、数字电子、微机接口、超声波换能器、以及超声波在介质的传播特性等知识，采用以AT89C51单片机为核心的低成本、高精度、微型化数字显示超声波测距的硬件电路和软件设计方法在此基础上设计了系统的总体方案，最后通过硬件和软件实现了各个功能模块。并且利用keil与proteus进行汽车防撞报警系统进行仿真，可实现上述功能，理论证明该系统能够简单、经济、有效的倒车防撞报警系统。关键词：防撞系统超声波keilproteusAbstractWiththerapiddevelopmentofscienceandtechnology,MCUwillbemoreandmorewidelyusedinthefieldofautomobile.Theautomotiveanti-collisionalarmsysteminthispaper,thesinglechipmicrocomputerareanalyzedintheory,combiningmicrocontrollertoultrasonicrangingsystemfunctions.Useofanalogelectronics,digitalelectronics,microcomputerinterface,ultrasonictransducer,andthecharacteristicsofthetransmissionofultrasonicwaveinthemediumsuchasknowledge,usingAT89C51single-chipmicrocomputerasthecoreoflowcost,highprecision,miniaturization,anddigitaldisplayhardwarecircuitandsoftwaredesignoftheultrasonicrangingmethodbasedonthedesign,theoverallschemeofthesystemisfinallythroughhardwareandsoftwaretoachievethevariousfunctionalmodules.Theautomotiveanti-collisionalarmsystemandusethekeilandproteusalignmentsimulation,whichcanrealizethefunction,theorytoprovethesystemissimple,economicandeffectivereversecollisionwarningsystem.Keywords:anti-collisionsystemultrasonicsingle-chipmicrocomputerKeilProteusI目录第1章绪论1.1倒车防撞报警系统的研究目的及意义............................................................................................11.2国内外研究现状及其发展..........................................................................................................................11.3基于单片机倒车防撞系统的研究内容............................................................................................2第2章系统方案设计2.1整体方案原理.......................................................................................................................................................32.2倒车防撞报警系统的功能要求.............................................................................................................32.3倒车防撞报警系统中单片机介绍.......................................................................................................32.4倒车防撞报警系统超声波的应用.......................................................................................................42.4.1超声波介绍.................................................................................................................................................42.4.2超声波测距原理......................................................................................................................................42.5倒车防撞报警系统显示与报警的介绍............................................................................................5第3章系统硬件结构设计3.1系统硬件总电路构成及原理...................................................................................................................63.2系统硬件电路构成...........................................................................................................................................63.3发射接收电路的设计方案..........................................................................................................................73.3.1发送整体电路的设计..........................................................................................................................73.3.2接收整体电路的设计..........................................................................................................................83.4显示电路的设计.................................................................................................................................................93.5报警电路的设计..............................................................................................................................................10第4章软件设计4.1主程序的设计....................................................................................................................................................124.2超发射声波序的设计...................................................................................................................................134.3超声波的接收与处理..................................................................................................................................134.4超声波汽车防撞电路的算法设计....................................................................................................134.5显示子程序和蜂鸣报警子程序.........................................................................................................14第5章利用KEIL与PROTUES软件联机进行仿真实验5.1软件调试的方法和意义.........................................................................................................................15II5.2进行软件仿真模拟倒车防撞报警系统工作情况..............................................................16第6章总结...................................................................................................................................................................17参考文献....................................................................................................