陕西理工学院毕业设计智能家居安防系统的设计与制作[摘要]本设计主要以单片机AT89S51为智能控制中心，结合烟雾检测模块、火灾检测模块、人为非法入侵检测模块及声控报警模块，及其外围辅助电路，构成了一个集防盗、防火、防毒气等多种检测功能为一体的多功能防盗报警系统。首先由各传感器检测烟雾、火灾及人为非法入侵信号，当检测到的信号超出自身的设定值时，将其转化为电信号并传送给单片机处理，再由单片机将电信号传送给蜂鸣器驱动其报警。该系统具有轻便灵巧、电路简单易实现，所使用的各类元器件灵敏度较高的特点。利用单片机编程，可使电路功能易于控制，从而实现了识别不同警情的具有智能报警的家居报警系统。[关键词]AT89S51单片机;HC-SR501；DS18B20数字温度模块；智能报警：热释电DesignofIntelligentHomeFurnishingSecuritySystem[Abstract]ThisdesignmainlywithAT89S51singlechipcomputerasthecontrolcenter,combinedwithsmokedetectionmodule,firedetectionmodule,humanintrusiondetectionmoduleandthevoicealarmmodule,anditsauxiliarycircuit,constitutesasetanti-theft,fire,gasandotherdetectionthemultifunctionalanti-theftalarmsystem.Firstofall,thesensorsdetectsmoke,fireandhumanintrusionsignal,whenthedetectedsignalexceedsthesetvalue,thesensorswilltransformitintoanelectricsignalandtransmitittotheMSCforprocessing,andthetransmitelectricalsignalswillbetransmittedtothealarmbuzzerfordriving.Thesystemisportableandflexible,thecircuitissimpleandeasytoimplement,usedbyvariouscomponentsofhighsensitivitycharacteristic.TheuseofMSCprogramming,canmakethefunctionofthecircuitiseasytocontrol,thusrealizingthepyroelectricsensortodetectillegalinvasion,gassensorfordetectionofgasandotherharmfulgases,temperaturesensorfordetectingthefire.[Keywords]AT89S51;HC-SR501；DS18B20；MQ-2I陕西理工学院毕业设计目录引言.......................................................11.系统方案设计.............................................21.1报警系统的组成及结构..........................................................................21.2模块方案选择..........................................................................................21.2.1控制模块........................................................................................21.2.2电源模块........................................................................................21.2.3烟雾检测模块................................................................................31.2.4人体检测模块................................................................................31.2.5声控报警模块................................................................................32系统各检测模块............................................42.1烟雾检测模块..........................................................................................42.1.1MQ-2简介......................................................................................42.1.2LM339简介....................................................................................62.1.3烟雾检测模块电路........................................................................72.2火灾检测模块..........................................................................................72.2.1DS18B20简介................................................................................82.2.2温度检测模块电路........................................................................92.3人体检测模块..........................................................................................92.3.1...
