倒车雷达系统设计摘要随着社会经济的快速发展以及电子技术的逐渐成熟，距离测量在我们的生产生活中各行业种随处可见，超声波测距技术相较于传统的测距技术而言具有精度高、响应速度快等诸多优势，广泛应用在当前的工业生产之中，如汽车自动驾驶，盲道，伐木等。因此，超声波测距的研究具有重要的现实意义。近年来，无线通讯的发展，使得人们的生活质量也随之提升，远距离遥感和测距技术的出现使人们可以从繁重的劳动中解脱出来，也极大的促进了科学技术和生产力的发展。本文选用STC89C52单片机，并结合超声波测距，显示单元和报警单元。运用无线传输技术，在单片机的基础上设计出了一个简单方便的倒车雷达系统。该系统主要有两部分组成：从机负责超声波测距和数据处理，然后将无线传输模块发送到主机上。随后主机在接收到信号之后将信息与设定的阈值信息进行比较，若测距距离小于设定极限值，则说明汽车在倒车时可能会碰上障碍物，此时会发出报警声，并将处理结果在显示模块中予以显示提醒驾驶员及时采取合理的制动措施进行制动，防止出现安全事故，本文所设计的倒车雷达系统按键模块中由三个按键，通过按键可手动完成报警距离极限值的设定。本文研究和阐述了停车传感器系统的设计方案，并对设计结果进行了仿真和调试，仿真结果表明，本文设计的倒车雷达可实现预期的功能，为同类设备的设计提供了一定的理论借鉴。关键词：超声波测距；STC89C52；无线传输；倒车雷达AbstractWiththerapiddevelopmentofsocialeconomyandthegradualmaturityofelectronictechnology,distancemeasurementcanbeseeneverywhereinourproductionandlife.Ultrasonicrangingtechnologyhashigherprecisionandfasterresponsethantraditionalrangingtechnology.Manyadvantagesarewidelyusedincurrentindustrialproduction,suchasautodriving,blindroads,loggingandsoon.Therefore,theresearchofultrasonicranginghasimportantpracticalsignificance.Inrecentyears,thedevelopmentofwirelesscommunicationhasimprovedpeople'squalityoflife.Theemergenceofremotesensingandrangingtechnologyhasenabledpeopletobefreedfromheavylaborandgreatlypromotedthedevelopmentofscienceandtechnologyandproductivity..ThisarticleselectsSTC89C52single-chipmicrocomputer,andcombinesultrasonicranging,displayunitandalarmunit.Usingthewirelesstransmissiontechnology,asimpleandconvenientreversingradarsystemisdesignedonthebasisofsinglechipmicrocomputer.Thesystemconsistsoftwomaincomponents:theslaveisresponsibleforultrasonicranginganddataprocessing,andthensendsthewirelesstransmissionmoduletothehost.Then,afterreceivingthesignal,thehostcomparestheinformationwiththesetthresholdinformation.Ifthedistanceislessthanthesetlimit,thecarmayhitanobstaclewhenreversing,andanalarmwillbesounded.Theprocessingresultisdisplayedinthedisplaymoduletoremindthedrivertotakereasonablebrakingmeasurestobrakeintimetopreventasafetyaccident.Inthispaper,theparkingsensorsystembuttonmoduleisdesignedwiththreebuttons,andthealarmdistancelimitcanbemanuallycompletedbypressingthebutton.Thesettingofthevalue.Inthispaper,thedesignschemeoftheparkingsensorsystemisstudiedandexpounded,andthedesignresultsaresimulatedanddebugged.Thesimulationresultsshowthatthereversingradardesignedinthispapercanrealizetheexpectedfunctionandprovideatheoreticalreferenceforthedesignofsimilarequipment.Keywords:ultrasonicranging;STC89C52;wirelesstransmission;parkingsensor目录1.绪论........................................................11.1选题目的和意义.....................................................11.2国内外现状.........................................................11.3研究内容............................................................22.倒车雷达总体设...
