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1、摘要随着信息技术的飞速发展以及人们生活水平的大幅度提高,人们对住宅的需求已从追求简单的生存空间向着追求质量、功能、服务等多重需求过渡。同时,随着人们的保护意识不断增强,防盗措施的紧迫性也逐渐被提上了日程,防盗报警系统应运而生。本文设计了住宅智能化中的红外防盗报警系统。本系统以单片机89C51为核心,配以各种功能模块,来满足人们日常生活中的安全需求,本系统采用了热释电红外传感器,它的制作简单、成本低,安装比较方便,抗干扰力强、灵敏度高,而且安装较隐蔽,不易被发觉。该系统主要包括红外探测电路、LCD控制电路、声光报警电路及单片
2、机控制电路等。自动检测功能由红外探测电路实现,当有盗贼穿过此装置时,红外传感器立即将检测到的信号经过信号处理后传送给主机电路,由主机来判断信号并驱动电路报警。报警功能由扬声器、蜂鸣器等发声装置实现,同时通过RS-485通信报警给小区警卫。本设计通过红外传感器探测人体红外线信号,从而达到报警的功能,满足了人们日常生活对防盗报警功能的需要。关键词:防盗报警,红外探测,RS-485通信,声光报警ABSTRACTWiththerapiddevelopmentofcommunicationtechniqueandgreatimpro
3、vementofpeople’slivingstandard,theneedhasbeenchangedfromonlythelivingspacetomultiformneedsofquality,function,serviceandsoon.Atthesametime,astheincreasingofprotectingawareness,securitymeasureshavegraduallybeenputontheagenda.Anti-theftalarmsystemcameintobeing.Akindo
4、fintelligentinfraredanti-theftalarmsystemisdesignedforresidentialarea.Inordertomeetthesecurityneedsofdailylife,thissystemwithvariousfunctionmodulescoreswithmicrocontroller89C51.ThissystemusedPyroelectricinfraredsensor,italsohassomeadvantagessuchaseasymaking,lowcos
5、t,convenientinstallation,stronganti-interferenceability,highsensitivity,andamorehiddeninstallationanddifficulttofound.Thissystemincludesinfrareddetectingcircuit,LCDcontrolcircuit,soundandlightalarmcircuitandMCUcontrolcircuit.Automaticdetectioncanbecompletedbyinfra
6、reddetectingcircuit.Whentheftisdetected,thesignalproducedbyinfraredsensorwillbetransmittedtothesignalprocessingmodule,andthenthiscircuitsendsthesignalreceivedtothemaincircuitwhichwilljudgeitanddrivethealarmmodule.Alarmfunctionisrealizedbyaudibledevicessuchasspeake
7、r,buzzer,etc.,anditcanbetransmittedtosub-districtguardhousethroughRS-485communicationsalerting.Thissystemdetectstheinfraredsignalofhumanbodybyinfraredsensor,soithasthealarmingfunction.Thissystemmeetstheneedofanti-theftandalarminpeople’sdailylive.KEYWORDS:anti-thef
8、tandalarm,infrareddetecting,RS-485communication,soundandlightalarm毕业设计(论文)原创性声明和使用授权说明原创性声明本人郑重承诺:所呈交的毕业设计(论文),是我个人在指导教师的指导下进行的研究工作及取得的成果。尽我所知,除文中特别加以标注