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1、摘要本文介紹了本次畢業(yè)設(shè)計(jì)的課題汽車防盜報(bào)警器的設(shè)計(jì)。整個(gè)系統(tǒng)的功能是通過檢測來實(shí)現(xiàn)汽車防盜,當(dāng)沒有振動(dòng)時(shí),保持預(yù)警狀態(tài),有振動(dòng)時(shí)就報(bào)警。本系統(tǒng)主要包括三個(gè)部分的電路:振動(dòng)檢測電路、單片機(jī)控制電路、報(bào)警電路。振動(dòng)檢測電路的主要功能是:檢測汽車是否有振動(dòng),當(dāng)沒有振動(dòng)時(shí),輸出保持低電平,當(dāng)有振動(dòng)時(shí),檢測電路產(chǎn)生數(shù)字脈沖信號(hào),送到單片機(jī)控制電路。單片機(jī)控制電路是整個(gè)系統(tǒng)的核心部分,它接收檢測電路傳來的信號(hào),并通過程序來加以處理和控制報(bào)警電路,當(dāng)它接收到的是低電平時(shí),就保持報(bào)警電路關(guān)閉狀態(tài),當(dāng)它一旦接收到脈沖信號(hào)時(shí)就開啟報(bào)警電路。報(bào)警電路主要實(shí)現(xiàn)聲音和光兩種報(bào)警。本文首先說明了本次設(shè)
2、計(jì)所能夠采用的方案,接著介紹了芯片的功能及其它器件的特性,例如,AT89S52、振動(dòng)傳感器等。然后描述了該系統(tǒng)的組成及其結(jié)構(gòu)。接下來分析了各個(gè)電路及整個(gè)系統(tǒng)的工作原理及具體工作過程。最后闡述了調(diào)試方法以及電路的改進(jìn)方案,以確保整個(gè)系統(tǒng)更加有效地工作和很好地完成本次設(shè)計(jì)。關(guān)鍵詞:振動(dòng)檢測電路單片機(jī)控制電路報(bào)警電路振動(dòng)傳感器AbstractThispaperintroducesthedesignofautomobileanti-theftalarmsystemofthisgraduationdesign.Thefunctionofthesystemisrealizedbydete
3、ctingcaralarm,whenthereisnovibration,keepalert,avibrationalarm.Thissystemmainlyincludescircuitofthreeparts:thevibrationdetectioncircuit,single-chipmicrocomputercontrolcircuit,alarmcircuit.Themainfunctionofthevibrationdetectioncircuitis:testingwhethertheautomobilevibration,whenthereisnovibra
4、tion,theoutputremainslow,whenthevibrationdetectioncircuit,digitalpulsesignal,issenttotheMCUcontrolcircuit.MCUcontrolcircuitisthecorepartofthewholesystem,itreceivesthesignaldetectioncircuitcame,andthroughtheprocedurestohandleandcontrolalarmcircuit,whenitreceivesislow,keepthealarmcircuitclose
5、dstate,whenitreceivesthepulsesignalwhenopeningthealarmcircuit.Thealarmcircuitismainlytoachievesoundandlightalarmtwo.Thispaperfirstexplainstothedesignoptions,thenintroducesthecharacteristics,thefunctionofthechipandotherdevicesforexampleAT89S52vibrationsensor.Thenitdescribesthe?compositionand
6、structureofthesystem.Thenanalyzedtheworkingprincipleofthecircuitandthewholesystemandthespecificworkprocess.Finally,thedebuggingmethodandtheimprovedschemeofthecircuit,soastoensurethewholesystemworkmoreeffectivelyandperformwellinthedesign.KEYWORDS:thevibrationtestelectricalcircuitthecontrolel
7、ectricalcircuitofthemicrocomputerthealarmelectricalcircuitthevibrationsensor目錄第一章引言1第一節(jié)振動(dòng)信息檢測1第二節(jié)車輛信息的傳輸與控制2第二章系統(tǒng)概述3第一節(jié)系統(tǒng)設(shè)計(jì)目標(biāo)3第二節(jié)系統(tǒng)結(jié)構(gòu)框圖3第二節(jié)系統(tǒng)的改進(jìn)與展望4第三章系統(tǒng)硬件5第一節(jié)MC9S08QG8單片機(jī)及其外圍電路5第二節(jié)MMA7260QT加速度模塊及其外圍電路6第三節(jié)TC35iGSMModem模塊8第四節(jié)其它輔助電路8第四章系統(tǒng)軟件10第一節(jié)系統(tǒng)軟件的整體設(shè)計(jì)思路