湖南电子科技职业技术学院毕业设计摘要随着我国经济飞速发展，越来越多的人拥有了自己的汽车，同时由泊车和倒车所引发的事故也越来越多。这些事故常常给驾驶员带来许多的麻烦，因此，有助于驾驶员泊车和倒车的倒车雷达应运而生。倒车雷达全称叫“倒车防撞雷达”，也叫“泊车辅助装置”，是汽车泊车安全辅助装置，能以声音或者更为直观的显示告知驾驶员周围障碍物的情况，解除了驾驶员泊车和启动车俩时前后左右探视所引起的困扰，并帮助驾驶员扫除视野的死角和视线模糊的缺陷。本文介绍了以AT89S52单片机为核心的一种低成本、高精度、微型化，并有声音报警功能的倒车雷达系统，该倒车雷达根据超声波测距原理研制，采用温度补偿技术、开机自检技术和优化的软硬件技术，将测得的结果送至串口显示，同时用蜂鸣器报警。驾驶员只需坐在驾驶室就能做到心里有数，极大的提高了泊车和倒车时的安全和效率。关键词：STC89C52单片机，倒车雷达，超声波3湖南电子科技职业技术学院毕业设计AbstractWiththerapiddevelopmentofChina'seconomy,moreandmorepeoplehavetheirowncars,andcausedbyparkingandreversingaccidentsarealsomoreandmore.Theseaccidentsoftenbringalotoftroubleforthedriver,therefore,reversingradarhelpdriversparkingandreversingtheemergeasthetimesrequire.Reversingradarfullnameis"reversinganti-collisionradar",alsocalled"parkingauxiliarydevice",istheautomobilesafeparkingauxiliarydevice,tothesoundormoredisplayaroundtheobstaclesofthispilotintuitive,liftingthedriverparkingandstartthecarataroundtwovisitcauseddistress,andhelpthedrivertoremovethevisionofthedeadandthelineofsightfuzzyflaw.Thispaperintroducesakindoflowcost,highprecision,miniaturizationofAT89S52microcontrollerasthecore,andthereversingradarsystemsoundalarmfunction,thereversingradarisdevelopedaccordingtotheprincipleofultrasonicdistancemeasurement,usingthetemperaturecompensationtechnology,softwareandhardwaretechnologypoweronselftesttechnologyandoptimization,themeasuredresultssenttotheserialdisplay.Atthesametimewiththebuzzeralarm.Thedriveronlyhastositinthecabcandoseveralthings,greatlyimprovestheefficiencyandsafetyofparkingandreversingthe.Keywords:STC89C52microcontroller,reversingradar,ultrasonic4湖南电子科技职业技术学院毕业设计目录摘要.........................................................................................................................................IAbstract...................................................................................................................................II第一章绪论............................................