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1、綿陽師范學(xué)院本科生畢業(yè)論文（設(shè)計(jì)）題目語音報(bào)警器設(shè)計(jì)專業(yè)物理學(xué)院系物理與電子信息工程系學(xué)號(hào)20032050姓名鄧君指導(dǎo)教師曾小平答辯時(shí)間二○○七年六月語音報(bào)警系統(tǒng)設(shè)計(jì)學(xué)生：鄧君指導(dǎo)老師：曾小平摘要：本設(shè)計(jì)主要由四個(gè)部分組成：信號(hào)采集、語音報(bào)警、電動(dòng)機(jī)控制和電源電路。利用水位檢測(cè)集成塊ULN2429A檢測(cè)水位的高低的電壓信號(hào)，并由此電壓信號(hào)控制語音報(bào)警電路和電動(dòng)機(jī)控制電路，當(dāng)水位高于探測(cè)的電極，集成塊ULN2429A檢測(cè)到水位信號(hào)，輸出控制信號(hào)使繼電器K閉合，語音報(bào)警電路閉合，語音集成塊HFC9561B輸出報(bào)警信
2、號(hào)，再由功率放大集成塊LM386進(jìn)行信號(hào)放大，再到喇叭，發(fā)出語音報(bào)警，同時(shí)電動(dòng)機(jī)停止工作。當(dāng)水位低于探測(cè)電極時(shí)，集成塊ULN2429A檢測(cè)不到水位信號(hào)，控制語音報(bào)警電路的繼電器K斷開，語音集成塊HFC9561B不輸出報(bào)警信號(hào)，同時(shí)繼電器K使電動(dòng)機(jī)也停止工作。電路電源是利用變壓器和橋式整流濾波，再由7806和7812以及分壓輸出6V、12V、3V的工作電壓。因此本設(shè)計(jì)是一種結(jié)構(gòu)簡(jiǎn)單、性能可靠、操作方便的語音報(bào)警系統(tǒng)。關(guān)鍵詞：語音報(bào)警，水位，電動(dòng)機(jī)控制ThesystemPronunciationalarmStude
3、nt:dengjunInstructsteacher:zengxiaopingAbstract:Thedesignmainlyiscomposedbyfourparts:Signalgathering,thepronunciationreporttothepolice,themotorcontrolandthepowercircuit.UsingwaterlevelexaminationintegrationblockULN2429Aexaminationwaterlevelheightvoltagesigna
4、l,andfromthisvoltagesignalcontrolpronunciationalarmcircuitandmotorcontrolelectriccircuit,whenthewaterlevelishigherthan30M,integratedblockULN2429Aexaminationtowaterlevelsignal,controlpronunciationalarmcircuitcontactdeviceKclosed,pronunciationalarmcircuitclose
5、d,incontextofcurrenttechnologyindexblockHFC9561Boutputalarm,enlargesagainbythepowerenlargementintegrationblockLM386clearsignal,againarrivestheloudspeaker,sendsoutthepronunciationtoreporttothepolice.Simultaneouslytheelectricmotorstartstoworkpumpswater;Toprear
6、rangesuntilthewaterlevelthewaterlevel,integratedblockULN2429Aexaminesthewaterlevelsignal,thecontrolpronunciationalarmcircuitcontactdeviceKseparation,thepronunciationalarmcircuitseparation,incontextofcurrenttechnologyindexblockHFC9561Bdoesnotoutputthealarm,th
7、eelectricmotoralsoknockoff.Theelectriccircuitpowersourceisusesthetransformerandthebridgetyperectificationfilter,againoutputs6V,12V,the3Vworkingvoltageby7,806and7,812aswellasthedifferentialpressure.Thereforethisdesignisonekindofstructuresimple,theperformancei
8、sreliable,theeaseofoperationpronunciationalarmsystem.Keyword:VoiceAlarm,thewaterleve,motorcontrol目錄前言11語音報(bào)警系統(tǒng)的設(shè)計(jì)21.1性能特征21.2整機(jī)概述21.3語音信號(hào)采集與信號(hào)處理部分21.3.1HFC9561B的介紹21.3.2信號(hào)檢測(cè)與信號(hào)提取電路31.4功率放大集成電路41.
