基于单片机倒车防撞报警系统设计

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1、基于单片机倒车防撞报警系统设计班级：机电092姓名：王武学好：090101235南通职业大学机械工程学院目录1绪论···················································2系统组成及其工作原理···································①超声波测距原理·······································②鸣锋报警器报警原理···································③LED数字显示原理·················

2、····················3系统硬件电路设计·······································绪论随着经济的发展，汽车需求量在我国大幅度增加，道路增加，道路越来越拥挤，交通该事故频发。每年都会有很多人因为交通事故而失去亲人，给人们的生命财产带来巨大的损失。安全驾驶成为人们的普遍共识，设计一套安全有效的报警系统已成为人们不容忽视的问题。所谓的汽车防撞系统（CollisionAvoidanceSys-temCAS）其实就是汽车预警系统。在汽车倒车时位于汽车尾部的倒车雷达利用超声波测量汽车尾部与障碍物的距

3、离。当汽车倒车达到雷达的测量范围时，汽车的数码显示管实时动态显示车尾与障碍物的距离。当汽车尾部达到雷达的安全报警范围内时，汽车雷达发出警报声，提醒司机注意障碍物慢速驾驶。因此市场的需求必然会带起一项产品的开设计。现在市场上有很多种汽车倒车雷达，几乎每一辆汽车上都会装有汽车报警系统，雷达持续不断的需求也必然会带动其本身的不断更新。本项目是基于单片机设计的汽车倒车防撞系统，该系统将采用通用的单片机作为主要的控制电路，也为以后的不断更新提供方便。该系统采用集成方式制成，其占空间少，成本低，控制简单，有利于大量生产。IntroductionWith

4、thedevelopmentofeconomy,theautomobiledemandinourcountryincreasessubstantially,increasemoreandmorecrowdedroads,roadtrafficaccidents,the.Everyyearthereisalotofpeoplebecauseofthetrafficaccidentandthelossoflovedones,topeople'slivesandpropertycausedhugelosses.Drivingsafetyisbec

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7、emandofthemarketwilltakeaproductdesign.Nowtherearemanykindsofcarreversingradar,almosteverycarisequippedwithcaralarmsystem,radarconstantdemandwilldriveitsownconstantlyupdated.Theprojectisbasedonthesingle-chipdesignofcarreversingaidsystem,thesystemwillusethegeneralsinglechip

8、asthemaincontrolcircuit,butalsoforthefutureoftheconstantlyupdatedtoprovideconvenient.Thes