成都理工大学工程技术学院毕业论文基于单片机的智能家居防火防盗报警系统I基于单片机的智能家居防火防盗报警系统摘要随着社会的不断进步和科学技术、经济的发展，人们的生活水平得到很大的提高，人们愈加注重人身安全，因而也对防火防盗措施提出了新的要求。本设计所做的智能家居控制系统包括室内信息智能监控功能、输入与实时显示功能、声光报警功能等。本文利用单片机结合传感器技术而开发设计了这一防火防盗报警系统。本设计采用DYP-ME003人体红外感应模块、18B20温度传感器和MQ_2烟雾传感器检测信号，然后将信号传送给单片机处理,实现声光报警。该系统通过按键对系统的温度和烟雾的浓度进行初始化设置，利用LED显示模块对系统的温度和烟雾的浓度进行实时显示。该系统结构简单、性能稳定、使用方便、价格低廉，具有一定的实用价值。关键字：防火防盗报警18B20MQ_2DYP-ME003II基于单片机的智能家居防火防盗报警系统AbstractWithsociety’sprogressanddevelopmentofscienceandtechnology,economy,people'slivingstandardhasbeengreatlyimproved.Peoplepaymoreattentiontopersonalsafety,thustheyputforwardnewrequirementsforthefireandsecuritymeasures.Inthisdesign,theintelligentfamily-housecontrolsystemincludesthisfunction:indoorinformationintelligentmonitoring,theinputandreal-timedisplay,soundandlightalarm,andsoon.Thedesignisafireandsecuritysystem,whichcombinessensortechnologywithmicrocontroller.ThisdesignadoptstheDYP-ME003humanbodyinfraredsensormodule,18b20temperaturesensorandMQ_2smokesensortodetectionsignal.Thesesensorsendthesignalstomicrocontroller.Themicrocontrollerprocessthesesignalanddrivealarmcircuittoachievesoundandlightalarm.Thefirtemperatureandsmokeconcentrationareinitializedinthissystem.,andaredisplayedintheLEDdisplay.Thesystemhastheadvantagesofsimplestructure,stableperformance,conventionaloperation,lowprice,andhasacertainpracticalvalue.Keywords:Thefireandsecuritysystem,18b20,MQ_2,DYP-ME003III基于单片机的智能家居防火防盗报警系统目录摘要...........................................................IAbstract..............................................................................................II目录...................................................................................................III1绪论..................................................................................................12系统总设计........................................................................................22.1设计内容与要求.........................................................................22.2系统设计的总体思路..................................................................23方案论证与比较.................................................................................44系统硬件结构.....................................................................................54.1整体硬件设计思路.....................................................................54.2单片机电路AT89S52..................................................................54.2.1主要性能参数.....................................................................54.2.2管脚说明............................................................................64.2.3单片机最小系统..................................................................84.3温度传感电路.............................................................................94.3.1DS18B20介绍.....................................................................94.3.2DS18B20工作电路.....................................................
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