基于红外报警技术的防盗系统毕业论文外文文献翻译及原文

外文原文Basedoninfraredalarmtechnologysecuritysystems1theintroduction1.1theresearchsignificanceofthistopicresearchsituationathomeandabroad.Withthedevelopmentofsocietyandscienceandtechnologyunceasingdevelopment,people'slivingstandardsbeenimprovedgreatly,andtotheprivatepropertyprotectionmeansintheunceasingenhancement,theintelligentfacilitiesforanti-theftputsforwardnewrequirements.Thisdesignistomeettheneedofmodernresidentialanti-theftdesignedfamilyelectronicalarmsystem.Itinpreviousdevicesbasedonimprovedgreatly,becauseusethesingle-chipprocessorsignal,notonlycanusedforsingleresidentialarea,alsocanbeusedinalarge-scaleresidentialsecuritysystems.It'sthejoboftheperformanceisgood,donotappeartoreportandmisstatementphenomenon,safeandreliable.Inourcountry,thepresentmarketconditionalarmbasicallyhastriggeredalarmsystempressureswitchelectronandalarmsystemandpressureshadingtriggeredalarmsystem,etc.Variouskindsofalarm,butthisseveralcommonalarmtherearesomeshortcomings.ThissystemUSESahumanpyroelectricinfraredsensorinthehumanbodydetectorintheflied,passivepyroelectricinfrareddetectorsbecauseofitslowcost,easyfabrication,lowcost,installationismoreconvenient,anti-theftperformanceisstableandhighsensitivity,safeandreliable,hasattractedbroadfamilycharacteristicssuchaspopularwiththecustomers.Andalarmsinstallationconcealment,noteasilybyroguefound.1.2infraredalarmtechnologyintroduction1.2.1natureobjectsoftheinfraredradiationThenatureofanyobject,aslongasthetemperatureaboveabsolutezero(273℃),constantlyoutwardissuedinfraredradiation,andtravelatthespeedoflightenergy.Objectradiateoutwardinfraredradiationofenergyandtheobjectoftemperatureandinfraredradiantwavelength.Assumingobjectslaunchinginfraredradiationofpeakwavelengthforafew,itstemperatureforT,theradiationenergyequalsinfraredradiationofpeakwavelengthgerbenandobjectproducttemperatureT.Thisproductisaconstant,namely:Thehigherthetemperatureoftheobjects,emitinfraredradiationofthesmallerpeakwavelength,sendoutinfraredradiationenergyisbiggeralso.1.2.2.pyroelectriceffectPassiveinfrareddetectoralsocalledpyroelectricinfrareddetector,itsmainworkingprincipleispyroelectriceffect.Pyroelectriceffectmeansifmakesomestrongdielectricmaterial(suchasqinbatio3,qinwrongacidleadP(zT),etc.)ofthesurfacetemperaturechanges,thenwiththetemperatureriseorfall,materialsurfaceoccurspolarization,namelyonthesurfaceofthechargewillbeproducedchange,andmaterialsurfacechargelostbalanceandeventuallychargewillchangewithvoltageorcurrentformoutput.1.2.3pyroelectricinfraredsensorbasicstructurePyroelectricinfraredsensorsfromsensordetectionyuan,interferencefiltersandmosfetverifierthreeparts.Accordingtothenumberofdetectingyuantopoints,pyroelectricinfraredsensorshaveunit,doubleyuanhefouryuantowaitforafewkinds,forhumandetectionofinfraredsensoradoptsdoubleyuanorfouryuantypestructure.Accordingtopyroelectricinfraredsensorutilitycent,havethefollowingkinds:usedformeasuringtemperaturesensor,it'sthejobofthewavelengthof(1-20)nano,Usedforflamedetectionsensor,it'sthejobofthewavelengthfor0.435+/-0.15nano,Forhumandetectionsensor,it'sthejobofthewavelengthof7to15feet.Figure1.2isadoubledetectionyuanpyroelectricinfraredsensorstructureschematicdrawing.Thesensorwilltwooppositepolarity,special1.2.4pyroelectricinfrareddetectorbasicprinciplePyroelectricinfraredsensorbyreceivingmobilehumanradiationthatcertainwavelengthsofinfraredradiation,canbetransformedintoandhumanbodymovementspeedanddistance,thedirectionoflow-frequencysignalsabout.Whenpyroelectricinfraredsensorbyirradiationsourcesofradiation,itsinternalsensitivematerialstemperatureswillrise,polarizationintensityisabate,surfacechargereduce,usuallywillreleasethispartofthechargecalledpyroelectriccharge.Becauseofpyroelectricchargehowmanycanreflectmaterialchangesoftemperature,sobypyroelectricchargebycircuittransformedintotheoutputvoltagecanalsoreflectmaterialchangesintemperature,thusdetectirradiationenergychanges.2hardwaresystemdesign2.1infraredanti-theftalarmsystemhardwaredesignBecausethisdesignfocusesonfamilyguardagainsttheft,real-timemonitoringofanarrowerrange,sothisdesignbysimplyusingapassiveinfrareddetectorisenough.Therefore,infraredintelligentanti-theftalarmsystem,andthespecificdesignrequirementsfor:(1)completestohighsensitiveinfraredsensordesign,makeitscanwarningofwhathappenedreal-timeandaccuratedetection.(2)automaticalarm(automaticdial-upalarmaudibleandvisualalarm).Wedesignthesystemmusthavethefollowingfunctionmodule:1.passiveinfrareddetector,2.sound-lightalarm,3.telephoneautomaticdial-upfunction;4.continueduninterruptedpowersupply,Accordingtothesystemtocompletefunctions,weadoptsinglechipmicrocomputerasthecoreofthesystemunit,electronicdetection,intelligentcontrolandtelephonetong2.2telephoneautomaticdial-upalarmcircuitdesignInordertosimplifythewholesystemdesignprocess,wedonotadoptMT880chipdialing.Realizationprocessisasfollows:Firstintelephonestorageinsideputondomestichostcellphonenumberoralarmcall110.FromMCUpinsp2.0andp2.1drawntwowiringconnectrelays,apicktelephonekeyboardMianDiJian,anotherconnecttelephonekeyboardkeys,automaticweighingdialbecausethephonekeypadscanningissimilarmicrocontrollerkeypadscanning,socanmakeSCMgivefitstp2.0asignal,letstelephoneh-f,thengivethep2.1asignal,letrelayconnected,automaticweighingdialthekeyapotential,lettelephoneautomaticdial-up,sotheycouldfinishthesystemalarmfunction.2.3systemworkingprincipleThewholesystemhardwarepartmainlyincludessixparts:MCUmodule;Infrareddetector,Acousto-opticalarmcircuit;Telephoneautomaticdial-upalarmcircuit;Powersupplycircuit,Workingstateinstructionscircuit.Itssystemworkingprinciplefor:thesensorswillbedetectedsignalstoleadsignalprocessorprocessing,microcontrollerjudgmenttoP1.0mouthhavepulsefallingedgejumpingsignalimmediatelytransferredtotheacousto-opticalarmprogram,atthismoment,theredlightbuzzeralarmrapidflashes,lasted30s.Inthe30sinsideifsomeonepresstheswitch,theneliminatealarmremovealarm.ifthistimenooneremovealarm,theproofnobodyathomein30ssystemwillautomaticallytriggerstelephonefinishthewholesystemofpoliceworkproject.Later,microcontrollerwillcontinuetocycleback?sentenced2.4systemtotaldiagramInproteussimulationsystem,thesystemcircuitbycrystalscircuit,sound-lightalarmcircuitcomposed.Amongthem,weuseconnectthededicationoftheP1.0simulatedinfraredsensors,requirementwhenswitchwhenpressedbythehighjump,levelislow,theequivalentof,sensordetectsthestateofman,thetelephonelinewithP2.0andP2.1derivation,herewithoutsimulationtelephonecircuitdiagram.Figure3.53softwaresystemdesign3.1controlmoduledesignprogramMicrocomputerintheinitialpluselectric,voltageisnotsteadystate,causinginstability,atthistimetheSCMincommonlyafterpoweruptosystemwithapieceofdelay.Time-lapseafterdetectingP1mouthmicrocontrollerstate,detectionlevelsignalwhethermutations,ifisthencallsthepoliceprocessingprocedure,includingautomaticdialupaudibleandvisualalarmprocedures,ifnochanges,ChuXiangleveldetectioncontinuestoP1mouthstate.Figure4.1mainprogramflowchart3.2systemdevelopmentadoptedbytheprogrammingandcommissioningoftheplatformThissystemlanguageusingassemblylanguagepreparation,sochoosewave6000,hehasthemicrocontrollerprogramedit,compileanddebugging,etc.,andgeneratehexadecimal.Files,through:machineTOPWINburningsoftwarewriteablemicrocontrollerprogrammemory.ThesimulationsoftwareuseProteus,heisfromBritainLabcenterelectronicscompanyEDAsoftware.Thecircuitofthesimulationisinteractive,aimingatthemicroprocessorapplication,stillcandirectlybasedonschematicdiagramofthevirtualprototypeprogramming,andimplementingsoftwaresourcecodelevelofreal-timedebugging,ifhavedisplayandoutput,stillcanseeaftertheoperationofinputandoutputeffect.4systemdebuggingandtest4.1softwaredebuggingAdoptmodularizationprogramdesignthought,fitstdebuggingsubroutines,thengraduallysuperpositiondebugging,throughProteussimulationsoftwaredebugging,proofprogramcanrealizeitsfunction.4.2systemdebuggingThroughthecircuitofwelding,eachmodulefunctioncommissioning.Iputthehardwarethatoccurerrorsadjusted,inaddition,infraredthatpiece,becauseisemployingredirectedofpyroelectricswitchmodified,soinmustbetapingphotoconductiveresistancetorise,hasarrivedinthedaysandnightscanalarmfunction.Thetotalsystemcommissioning,through,errormeetstherequirement.5closingThissystemusesapyroelectricinfraredsensor,itsmakesimplelowcostandinstallationaremoreconvenientandanti-theftperformanceisstableandstronganti-jammingcapability,highsensitivity,safeandreliable.外文翻译基于红外报警技术的防盗系统1绪论1.1本课题的研究现状及研究意义随着社会的不断进步和科学技术不断发展，人们生活水平得到很大的提高，对私有财产的保护手段在不断的增强，对防盗设施的智能化提出了新的要求。本设计就是为了满足现代住宅防盗的需要而设计的家庭式电子防盗系统。它在以前的防盗器基础上进行了很大的改进，由于使用了单片机做信号处理器，不但可以用于单一的住宅区，也可以用于较大规模住宅区的防盗系统。它的工作性能好，不易出现不报和误报现象，安全可靠。在我国，目前市面上报警器主要有压力触发式防盗报警器开关电子防盗报警器和压力遮光触发式防盗报警器等各种报警器，但这几种比较常见的报警器都存在一些缺点。本系统采用了人体热释电红外传感器，在人体探测器领域中，被动式热释电红外探测器因其价格低廉、制作简单、成本低，安装比较方便，防盗性能比较稳定，灵敏度高、安全可靠等特点，备受广大家庭用户的欢迎。而且防盗器安装隐蔽，不易被盗贼发现。1.2红外报警技术简介1.2.1自然界物体的红外辐射特性自然界的任何物体，只要温度高于绝对零度（273℃），总是不断地向外发出红外辐射，并以光的速度传播能量。物体向外辐射红外辐射的能量与物体的温度和红外辐射的波长有关。假定物体发射红外辐射的峰值波长为几，，它的温度为T，则辐射能量等于红外辐射的峰值波长戈与物体温度T的乘积。这一乘积为一常数，即：

物体的温度越高，它所发射的红外辐射的峰值波长越小，发出红外辐射的能量也越大。1.2.2热释电效应被动式红外探测器又称为热释电红外探测器，其主要工作原理便是热释电效应。热释电效应是指如果使某些强介电质材料(如钦酸钡、钦错酸铅P(zT)等)的表面温度发生变化，则随着温度的上升或下降，材料表面发生极化，即表面上就会产生电荷的变化，从而使物质表面电荷失去平衡，最终电荷变化将以电压或电流形式输出。1.2.3热释电红外传感器的基本结构热释电红外传感器由传感探测元、干涉滤光片和场效应管匹配器三部分组成。按照探测元的数目来分，热释电红外传感器有单元、双元和四元等几种，用于人体探测的红外传感器采用双元或四元式结构。按照热释电红外传感器的用途来分，有以下几种：用于测量温度的传感器，它的工作波长为（1－20）纳米;用于火焰探测的传感器，它的工作波长为0.435+/-0.15纳米;用于人体探测的传感器，它的工作波长为7－15脚。图1.2是一个双探测元的热释电红外传感器的结构示意图。该传感器将两个极性相反、特性一致的探测元串接在一起，目的在于消除因环境温度和自身变化引起的干扰。它利用两个极性相反、大小相等的干扰信号在内部相互抵消的原理，使传感器起到补偿作用。当人体处于静止状态时，两元件极化程度相同，相互抵消;当人体移动时，两元件极化程度不同，净输出电压不为0，从而达到探测移动人体的目的。

1.2.4热释电红外探测器的基本原理热释电红外传感器通过接收移动人体辐射出的特定波长的红外线，可以将其转化为与人体运动速度，距离，方向有关的低频电信号。当防范区域内没有移动的人体时，由于所有的背景物体(如墙壁、家具等)在室温下红外辐射的能量比较小，而且基本上是稳定的，所以不能触发报警器。当有人体突然进入探测区域时，会造成红外辐射能量的突然变化，红外探测器将接收到的活动人体与背景物体之间的红外热辐射能量的变化转化为相应的电信号，电信号的大小，决定于敏感元件温度变化的快慢，经过后级比较器与状态控制器产生相应的输出信号U。，送往报警器，发出报警信号。红外探测器的探测波长为8－14微米，人体的红外辐射波长正好处于这个范围之内，因此能较好的探测到活动的人体。2硬件系统设计2.1红外防盗报警系统的硬件设计由于本设计侧重于家庭防盗，实时监控的范围比较狭窄，因此本设计只需使用一个被动式红外探测器就足够。为此，红外智能防盗报警系统的具体设计要求为：(1)完成对高灵敏度红外传感器的设计，使其能对所发生的警情进行实时、准确的探测。(2)可进行自动报警(自动拨号报警和声光报警)。我们设计此系统必须具有以下功能模块：1.被动式红外探测器;2.声光报警;3.电话自动拨号功能;4.持续不间断供电;根据系统所要完成的功能，我们采用单片机作为系统的核心单元，将电子探测、智能控制和电话通讯技术相结合，形成一个两级联网通讯的防盗报警系统。系统总体架构简图如图3.1所示。

2.2电话自动拨号报警电路的设计为了简化整个系统的设计流程，我们不采用MT880芯片拨号。具体实现过程如下：先在电话机的存储里面存上家庭主人的手机号码或报警电话110.从单片机的引脚p2.0和p2.