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1、基于激光测距的汽车安全报警装置的设计摘要随着社会经济的发展,汽车工业与电子工业飞速发展,汽车的数量也大幅攀升。每年汽车销售8000多万辆,保有量超过6亿辆。在用的车辆越多,拥挤状况也越严重,随之而来的是屡次的撞车事故,造成了不可避免的人员伤亡和经济损失。汽车安全成为一个社会问题,为了减少汽车事故的发生率,设计一种可靠性高,响应快且较为经济的汽车防撞预警系统势在必行,激光测距是最常见的一种距离测距方法,本文介绍的就是利用激光测距设计的•种汽车防撞报警系统。论文的内容是利用AT89S51单片机开发的汽车安
2、全报警系统的设计,主要是利用激光的特点和优势,将激光测距系统与AT89S51单片机结合为一体,设计岀一种基于激光测距的汽车安全报警系统。该系统采用激光探测技术,是一种声光电一体的智能汽车防撞产品,在出现跟车距离小于安全距离的紧急情况时,发岀警报,提醒驾驶员采取减速或制动措施,从而达到有效预防追尾碰撞事故发生的目的,提高汽车的主动安全性能。关键词:汽车,单片机,报警,激光测距DesignofautomobilesafetyalarmdevicebasedonlaserrangingAbstractwit
3、hsocietydevelopmentoftheeconomy,autoindustryandelectronicindustrydevelopatfullspeed,theautomobilequantityalsoclimbsalitrebylargemargins.Theautomobilesellsmorethan80,000,000everyyear,preservesandownsamountsareexceeding600million.Thevehicledependingonusin
4、giscrowdedincreasinglyexcessively,statuscan'texceedgrave,beingthatuptobutcomingfrequentlysmashuptheaccident,hasbroughtaboutinevitablepersonnelcasualtiesandeconomiclosses.Automobilesafetybecomesasocialproblem,theoccurrenceratefordecreaseautomobileacciden
5、t,theearlywarningsystemdesigningonekindofreliabilityheight,respondingtoapproximatelyandcomparativelyeconomicalautomobileanticollisionisimperative,laserdistancemeasurementisthemostcommononekindofonekindofautomobileanticollisionwarningsystemitisthedistanc
6、emeasurementmakinguseoflasertodesignthatfromwhendistancemeasurementmethod,themainbodyofabookintroducethat.ThatthethesiscontentisthedesignmakinguseofdevelopmentautomobileofAT89S51monolithicmachinesafetytowarningsystem,istomakeuseoflasercharacteristicanda
7、dvantagemainly,warningsystemcombininglaserdistancemeasurementsystemAT89S51monolithicmachinebeinganintegralwhole,designingoutonekindoflaserdistancemeasurement-basedautomobilesafety.Besystem'sturntoadoptlasertosoundatechnology,beonekindofopto・electronican
8、integralwholeofsoundintelligenceautomobileanticollisionproduct,sendoutawarningtoduringtheperiodoftheemergencybeingatadistanceofwithvehiclefromwhenbeingsmallerthansafetyappears,remindthepilotadoptsthemeasurereducingthespeedorbraki