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1、汽車倒車防撞系統(tǒng)畢業(yè)論文(設(shè)計(jì))題目汽車倒車防撞系統(tǒng)指導(dǎo)教師職稱學(xué)生姓名學(xué)號(hào)專業(yè)班級(jí)院(系)電子信息工程學(xué)院完成時(shí)間2011年4月10日-39-汽車倒車防撞系統(tǒng)汽車倒車防撞系統(tǒng)摘要隨著社會(huì)經(jīng)濟(jì)的發(fā)展交通運(yùn)輸業(yè)日益興旺,汽車的數(shù)量在大副攀升。交通擁擠狀況也日趨嚴(yán)重,撞車事件屢屢發(fā)生,造成了不可避免的人身傷亡和經(jīng)濟(jì)損失,針對(duì)這種情況,設(shè)計(jì)一種響應(yīng)快,可靠性高且較為經(jīng)濟(jì)的汽車防撞預(yù)警系統(tǒng)勢(shì)在必行,超聲波測(cè)距法是最常見(jiàn)的一種距離測(cè)距方法,本文介紹的就是利用超聲波測(cè)距法設(shè)計(jì)的一種倒車防撞報(bào)警系統(tǒng)。論文的內(nèi)容是基于STC89C52單片機(jī)倒車防撞系統(tǒng)的設(shè)計(jì),主要是
2、利用超聲波的特點(diǎn)和優(yōu)勢(shì),將超聲波測(cè)距系統(tǒng)和STC89C52單片機(jī)結(jié)合于一體,設(shè)計(jì)出一種基于STC89C52單片機(jī)的倒車防撞報(bào)警系統(tǒng)。該系統(tǒng)采用軟、硬件結(jié)合的方法,具有模塊化和多用化的特點(diǎn)。論文概述了超聲波檢測(cè)的發(fā)展及基本原理,闡述了超聲波傳感器的原理及特性。對(duì)于系統(tǒng)的一些主要參數(shù)進(jìn)行了討論,并且在介紹超聲波測(cè)距系統(tǒng)功能的基礎(chǔ)上,提出了系統(tǒng)的總體構(gòu)成。通過(guò)多種發(fā)射接收電路設(shè)計(jì)方案比較,得出了最佳設(shè)計(jì)方案,并對(duì)系統(tǒng)各個(gè)設(shè)計(jì)單元的原理進(jìn)行了介紹。對(duì)組成各系統(tǒng)電路的芯片進(jìn)行了介紹,并闡述了它們的工作原理。論文介紹了系統(tǒng)的軟件結(jié)構(gòu),通過(guò)編程來(lái)實(shí)現(xiàn)系統(tǒng)功能。最后
3、,通過(guò)對(duì)系統(tǒng)的誤差分析,給出了系統(tǒng)的改進(jìn)方案。關(guān)鍵字單片機(jī)/超聲波/STC89C52-39-汽車倒車防撞系統(tǒng)TimuAbstractIsdaybydayprosperousalongwiththesocialeconomydevelopmenttransportationshippingindustry,theautomobilequantityclimbsinthefirstmate.Trafficcongestionconditionalsodaybydayserious,thecollisioneventoccurredrepeatedly,h
4、ascausedtheinevitablepersoncasualtiesandtheeconomicloss,inviewofthiskindofsituation,designedonekindtorespondquickly,thereliabilitywashighalsoamoreeconomicalautomobileguardsagainsthitstheearlywarningsystemimperative,theultrasonicwaverangefindingwasthemostcommononedistancerangefi
5、ndermethod,thisarticleintroducesisguardsagainstusingtheultrasonicwaverangefindingdesignonekindofback-drafthitsthealarmsystem.ThepaperisbasedonthecontentsoftheAT89C51monolithicintegratedcircuitreversecollisionavoidancesystemdesign,mainlyusingultrasoundfeaturesandadvantages,ultra
6、soundrangingsystemandtheintegrationwiththeintegrationAT89C51monolithicintegratedcircuit,AT89C51monolithicintegratedcircuitbasedonthedesignofareversecollisionavoidancewarningsystems.Thesystemusedsoftwareandhardwareintegratedapproachofamodularandmulti-usecharacteristics.Thepapero
7、utlinesthedevelopmentandthebasicprinciplesofultrasoundtestsontheprinciplesandcharacteristicsofultrasoundsensors.Someofthemainparametersforthesystemwerediscussed,andintroducingultrasonicrangingsystemfunctionsbasis,theoverallcompositionofthesystem.Throughmultiplelaunchreceptionci
8、rcuitdesigncomparison,thebestdesignedprogrammedrawn,an