摘要：本文论述的智能家庭火灾报警系统主要包含两部分内容，一方面是通过无线的方式去发射和接收信息，另一方面是通过所设计控制系统实现自动控制，其中控制单元利用单片机来完成，考虑发生火灾时的场景，进行发射和接收的信号是通过温度传感器和烟雾传感器获取再加工的，配合无线收发模块将加工过的信息进行无线传输，根据数据来测量和预警。这套报警系统分为主系统和子系统两个部分，主系统实现对现场的数据监测、设定安全温度值、数据对比后进行报警等功能。子系统负责采集特征数据，包括温度、烟雾浓度，并发送数据。该系统凭借自身的优点被应用于多种家庭场景，它可使人们对家居火灾的发生更易察觉，实现保护人身安全和家庭财产安全的目的。关键词：AT89C52；温度传感器；NRF24L01；显示；报警。AbstractTheintelligenthomefirealarmsystemdiscussedinthispapermainlycontainstwoparts.Ontheonehand,ittransmitsandreceivesinformationthroughwirelessmeans,ontheotherhand,itrealizesautomaticcontrolthroughthedesignedcontrolsystem.Thecontrolunitusesthesinglechiptocompleteandconsiderstheoccurrence.Inthesceneoffire,thesignalstransmittedandreceivedareobtainedbytemperaturesensorandsmokesensor,andtheprocessedinformationiswirelesslytransmittedwiththewirelesstransceivermoduletomeasureandwarnaccordingtothedata.Thealarmsystemisdividedintotwoparts:themainsystemandthesubsystem.Themainsystemrealizesthefunctionsofmonitoringthedataonthesite,settingthesafetemperaturevalue,andcomparingthedatatoalarm.Thesubsystemisresponsibleforcollectingfeaturedata,includingtemperature,smokeconcentration,andsendingdata.Thesystemisusedinavarietyofhomescenariosduetoitsownadvantages,whichmakespeoplemoreawareoftheoccurrenceofhomefires,andachievesthepurposeofprotectingpersonalsafetyandfamilyproperty.Keywords:AT89C52;Temperaturesenior;NRF24L01;Display;Warning目录1绪论..........................................................................................................................11.1.........................................................................................选题的意义11.2当今应用领域家庭火灾报警系统的发展趋势...............................................................................................................................................11.3本设计主要研究内容...............................................................22设计要求与方案论证.........................................................................32.1设计要求..................................................................................................32.2系统基本方案选择和论证.................................................32.2.1单片机芯片选择方案与论证...................................32.2.2温度采集模块选择方案与论证............................32.2.3烟雾传感模块选择方案与论证............................42.2.4无线收发模块的选择方案与论证.....................42.2.5显示模块的选择方案与论证...................................52.2.6报警模块的选择方案与论证...................................52.3电路设计最终方案的确定.................................................53系统的硬件设计与实现..................................................................63.1系统硬件概述....................................................................................63.2主要单元电路的设计...............................................................63.2.1单片机主控制模块的设计..........................................63.2.2温度采集电路模块的设计..........................................93.2.3烟雾...
