译文

西安邮电大学毕业设计（译文）论文题目：基于单片机的无线防盗报警系统设计院（系）：自动化学院专业：电气工程及其自动化班级：电气1203学生姓名：陈超导师姓名：吴小峰/孙书咏职称：讲师/讲师DesignofwirelessburglaralarmbasedonMCUGuang-liLONGDepartmentofInformationEngineeringShaanxiUniversityofTecnologyHanzhong,[e-mail]—Fortosteals,robsandsoonaccidentstocarryontheeffectivemonitorandthewarning,unifiedusingtheMCUAT89C51controllingtechnologyandtheinfrareddetectiontechnology,onekindofwirelessburglaralarmhasbeendesigned,itincludinghardwareandsoftwaretwoparts;Thehardwarepartiscomposedbytheinfraredsensor,sendandreceivemodule,MCU,acousto-opticwarningandsoon;Thesoftwarepartiscomposedofthemainprogramandmusicsubroutine.WithCortheassemblylanguagecompilationsourceprogram,carriesonthetranslationandthedebuggingintheKeilc51platform,afterdownloadstotheMCUAT89C51chip,andthisMCUandotherprimarydevicesweldingonthePCBboardaccordingtodesignacircuit.Onelectricity,closed-cyclecontrolswitch,whensomepeopleintrudeintheinfraredlauncharea,hastheacousto-opticwarning,indicatedthathasachievedthedesignrequirements.Keywords-Infraredsensor;Launch;Receive;MCU(MicroControllerUnit);WarningI.PREFACEAlongwithtimeunceasingprogress,thepeoplelocatedtheenvironmentsecuritytooneselftoproposeahigherrequest,itwaslivingatthesecurityaspectparticularly,itmustpayattentiontheseunexpectedvisitorsfrequently.Nowmanyplotshaveinstalledtheintelligencealarmsystem,thusenhancedtheplotsafetyrategreatly,becauseinfraredisablacklight,usesthewirelesslaunchandthereceive,doesnotneedtheindependentwiring,ithastheverystrongconfidentialityandthesecrecy,thusinsecurity,securityinstallmentsandsoonsecuritytheuseshouldhavetheverybigsuperiority.II.DESIGNOFSYSTEMHARDWAREThewirelessburglaralarmdiagrambasedonMCUasshowninFigure1.Thissystemincludinginfraredsensor,launchmodule,receivemodule,MCU,acousto-opticwarningandsoon.TheinfraredsensoriscomposedofthepyroelectricinfraredsensorRE200B,pyroelectricinfraredswitchBISS0001andmatchesthefewexternalconnectionprimarydevice.Thepyroelectriceffectandpiezoelectriceffectissimilar,itisreferstocausescrystalplaneelectricallychargedphenomenonasaresultofthetemperaturechange[1].Thepyroelectricsensoristothetemperaturesensitivesensor.ItiscomposedoftheceramicoxidecompoundorthepiezoelectricFigure1ThewirelessburglaralarmdiagrambasedonMCUcrystalpart,itmakestheelectrodeintheparttwosurfaces,thetemperaturehasthechange6Twhenthesensormonitorscope,thepyroelectriceffectwillhavetheelectricchargeontwoelectrodes6Q,namelywillproduceaweakvoltage6Vbetweentwoelectrodes.Becauseitsoutputimpedanceisextremelyhigh,ithasafieldeffecttubeinthesensortocarryontheimpedanceconversion.Thepyroelectriceffectproducestheelectriccharge6Qwillbeunifiedbytheairinionvanishes,namelywillworkaswhentheambienttemperaturewillbestablyinvariable,6T=0,thenthesensorwillrelief.Whenthehumanbodyenterstheexaminationarea,becausethehumanbodytemperatureandtheambienttemperaturehavethedifference,produces6T,thenhastheoutput6T;Ifafterthehumanbodyenterstheexaminationareamotionless,thenthetemperaturedoesnothavethechange,thesensorhasnotoutput.Thereforethiskindofsensorexaminationhumanbodyoranimal'sactivesensing.Theexperimentisprovedthatthesensordoesnotaddtheopticallens(alsotosayFresnellens),itsexaminationdistanceissmallerthan2m,butafteraddingontheopticallens,itsexaminationdistancemaybebiggerthan7m.RE200Bisthebinarycellpyroelectricinfraredsensor,itusesthepyroelectricmaterialpolarizationalongwiththetemperaturechangecharacteristicsurveyinfraredradiation,itusesthedoublesensitiveacomplementarymethodtosuppressthedisturbancewhichthetemperaturechangeproduces,itenhancedsensor'sworkstability.BISS0001isonesectionhasthehighperformancesensingsignalprocessingintegratedcircuit,itmatchesbythepyroelectricinfraredsensorandthefewexternalconnectionprimarydeviceconstitutionpassiveformpyroelectricinfraredswitch.Whensomepeopleentertheinductionscope,theinfraredsensoroutputsthehighlevel,thehumanleavestheinductionscopeautomatictimedelaytoclosethehighlevel,outputsthelowlevel.ReceivemoduleMCUAcousto-opticwarningLaunchmoduleInfraredsensorThelaunchmodulemainlyconstitutesbycodechipPT2262andwirelesslaunchmoduleFS1000A[2].CodechipPT2262carriesonthecodetoinfraredsensor'sserialnumber,whatthePT2262launchpressedkeysendsoutisinfraredsensor'scodedsignal,itscodedsignaliscomposesacompletesymbolbytheaddress,thedatacode,thesynchronouscode,afterthecodesignallaunchesthroughwirelesslaunchmoduleFS1000A.ThelaunchmoduleFS1000AusestheASKwaymodulation,reducesthepowerloss,whendatasignalstoptheemissioncurrentreducestozero,thedatasignalandtheDFlaunchmoduleinputendmayusetheresistanceorthedirectconnection,butcannotusethecapacitivecoupling,otherwisetheDFlaunchmodulewillnotbeablethenormalwork.ThedatalevelshouldapproachtheDFdatamodulethepracticalworkvoltage,obtainsthehighmodulationeffect.ThereceivemodulemainlyconstitutesbywirelessreceivemodulePC-RH5AanddecodingchipPT2272[2].The14pinofdecodingchipPT2272andthereceivemodule'sdataoutputlookscarefullytheconnection,thusaddressmatchmayreceivethesignalwhichthemodulereceivestosendindecodingchipPT2272.Thedecodingchip's