浙江大学毕业论文--多路无线防盗报警系统设计

胡俊霞：多路无线防盗报警系统I郑州大学升达经贸管理学院毕业论文多路无线防盗报警系统的设计学号：206607058306学生姓名：嘻嘻嘻专业：电子信息工程指导老师：刘大纲提交时间：2011-4-18郑州大学升达经贸管理学院毕业设计论文II摘要如今市场上成熟的无线防盗报警产品有被动式的、主动式的和多技术复合式的。但前两者都有致命的缺点就是误报率很高，而多技术复合式的防盗报警器误报率很低，也是未来发展的主要方向。个人认为设计无线防盗报警器的意义在于设计的过程，在设计的过程中我们才会把这几年在学校里学到的融合，同时也让自己明白我们的学习道路还很遥远。本设计的目的在于设计出一个具有误报率较低、安装和配置容易、成本低、使用非常方便，具有一定的实用价值的多路无线防盗报警器。本设计提出了多路无线防盗报警器的设计方案，该多路无线防盗报警器由热释电红外传感器、无线接受、数据解码、中央处理单元和报警电路等组成。论文分析了多路无线防盗报警器的基本原理，并对硬件电路和软件详细设计。首先是为系统总体设计方案划分功能模块.第一部分是红外探测发射器(可以是多个探测发射器分别安装在需要防护的地方);第二部分是主机(含接收器,处理器,报警器等);第三部分是遥控手柄(对防盗器实行布防和撤防).其次是确定硬件电路的设计，包含芯片的选择，具体电路的设计如探测电路、编码与发射电路、接收与解码电路、遥控器电路等等。最后就是软件的设计，软件的设计主要是以熟悉硬件电路的工作原理为前提来设计的。系统主机接收电路的无线接收与解调部分采用的是现成的高频接收模块，可以简化设计工作，而且可靠性较好，使用起来也较方便，接收模块采用的是超再生接收。原理是利用传感器探测信号再通过无线发射模块发射出无线信号，无线接收模块接收到信号后经过数据处理后，再通过报警电路后发出报警声，另一方面输出具体的地址信息，确定是哪一路发送了报警信号。主机电路由高频接收模块接收发来的报警信号，通过解码器解码后得到报警传感器的地址和数据类型。关键词：电压比较器；无线；传感器；报警系统胡俊霞：多路无线防盗报警系统IIIABSTRACTNowthemarketmaturewirelesssecurityalarmproductsarepassiveandactiveandmorecomplextechnology.Butformerbothfatalflawistherateoffalsepositiveshigh,andmorecomplextechnologyalarmsystemmisstatementrateverylow,alsobethemaindirectionoffuturedevelopment.Peoplethinkthesignificanceofwirelessalarmsystemdesignistheprocessofdesignindesignprocesswewilltakethisyearslearnedinschool,alsoletoneselffusionunderstandthatourlearningroadisstillveryfaraway.Thisdesignaimstodesignahasthemisstatementratelower,installationandconfigurationeasy,lowcost,useveryconvenient,hascertainpracticalvalueofmulti-channelwirelessalarmsystem.Thisdesignisproposedbywayofwirelessalarmsystemdesign,themultiplewirelessalarmsystembypyroelectricinfraredsensors,wirelessaccept,datadecoding,centralprocessingunitandalarmcircuitetc.Thispaperanalyzesthemulti-channelwirelessalarmsystem,andthebasicprincipleofhardwarecircuitandsoftwaredetaileddesign.Firstistheoveralldesignschemeforthesystemfunctionmodulepartition.Thefirstpartisinfrareddetectionemitter(canbemultipledetectiontransmittersseparatelyinstallstheplaceinneedprotection);Thesecondpartismainengine(includingreceiver,processors,alarmandetc);Thethirdpartisremotecontroltohandle(implementprotectionandremovaldevices).Secondistodeterminethehardwarecircuitdesign,includingchipchoice,specificcircuitdesignsuchasdetectioncircuit,codingandlaunchcircuit,receivinganddecodingcircuit,remotecontrolcircuit,etc.Finallyisthedesignofsoftware,softwaredesignismainlybyfamiliarwithhardwareelectriccircuitprincipleofworkforthepremisetodesign.Systemofthewirelessaccesshostreceivingcircuitwithdemodulationpartadoptsisready-madehigh-frequencyreceivingmodule,whichcansimplifythereliabilitydesignwork,andisgood,userisemoreconvenientalso,receivingmoduleUSESisChaoZaiShengreceiving.Principleistousesensorstodetectsignalsemittedbywirelesstransmittingmodulewirelesssignals,wirelessreceivingmodulestosignalafterreceivingdataprocessing,againthroughthealarmingcircuitalarmsound,aftertheaddressofanotheroutputspecificinformationtodetermineiswhichwaythealarmsignalsent.Hostcircuitfrombyhigh-frequencyreceivingmodulereceivingthealarmingsignals,throughthedecodinggetalarmsensorcodecsaddressanddatatypes.Keywords:voltagecomparator;Wireless;Sensors;Alarmsystem郑州大学升达经贸管理学院毕业设计论文IV目录摘要····································································································IIABSTRACT·························································································III第一章：引言·························································································11.1无线防盗报警器的发展状况········································································11.1.1红外传感器························································································11.1.2无线防盗报警器的分类及其介绍·····························································41.1.3无线防盗报警器工作的原理··································································51.2设计的主要内容和意义··············································································61.2.1设计无线防盗报警器的内容··································································61.2.2设计无线防盗报警器的意义··································································6第二章系统总体设计···············································································72.1多路无线防盗报警器的组成········································································72.2各芯片引脚图与功能·················································································72.2.1芯片AT89C2051的20个引脚图与功能····················································72.2.2编码芯片LX2262引脚图与功能介绍·······················································92.2.3解码芯片LX2272引脚图与功能···························································112.2.4.音频小功率放大电路----LM386·····························································122.2.5.热释电红外处理芯片BISS0001····························································13第三章硬件电路的设计···········································································153.1系统硬件结构图·····················································································153.1.1系统硬件结构图主要分三个部分··························································15