智能家居毕业设计

-1-摘要智能家居系统采用电子传感技术、计算机技术和信息传输技术，对用户提供全方位的服务，同时对住房内情况进行实时监控和管理。它包括家庭内部信息传输系统、家庭报警、显示系统及智能传感/执行设备等几个部分。本文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、智能报警和通讯报警等。本文将整个系统分为主机部分和分机部分，以AT89C51单片机为主控器件，两部分之间通过无线通讯模块进行数据交换。主机部分是系统的核心部分，通过键盘输入模块对系统温湿度的进行初始化设置，并利用LCD显示模块对室内状况进行实时显示，本部分还具有温湿度控制和煤气阀开关控制的功能，对于异常情况，系统可通过声光报警模块进行报警提示，情形严重的可通过电话拨号模块通知用户、物业或相关部门。分机部分是系统的监测部分，主要是通过温湿度传感器、气体传感器和烟雾传感器对室内信号进行采集，并通过无线通讯模块PTR8000将信息传送给主机，实现对家居的智能控制。通过本文的研究，使得整个智能家居控制系统得到了进一步完善！关键词：AT89C51；智能控制；传感器；无线通讯-2-AbstractIntelligenthomesystemuseselectronicsensingtechnology,computertechnologyandinformationtransfertechnologytoprovideafullrangeofservices,andatthesametimetomonitorthesituationofhousingandreal-timemanagement.Itincludesfamilyinformationtransmissionsystems,homealarm,displaysystemandintelligentsensor/equipmentsuchastheimplementationofseveralparts.Theintelligenthomecontrolsystemmadeinthisarticleincludinganindoorinformationintelligentmonitoring,inputanddisplayreal-time,intelligentalarmandcommunicationsalarm.Itisdividedintohostpartandextensionpart,andmaketheAT89C51single-chipasthemaincontrolunit,thetwopartsexchangedataforeachotherthroughthewirelesscommunicationmodule.Thehostpartisthecoreofthesystem,initializethetemperatureandhumiditysettingsthroughthekeyboardinputmoduleofthesystem,andusetheLCDdisplaymoduleforthereal-timedisplayofindoorsituation,thispartalsohavethecontrolfunctionsfortemperature,humidityandgasvalveswitch,foranomalies,thesystemalsocanalarmbysoundandlightalarmmodule.Fortheserioussituation,thesystemalsocaninformtheusers,propertyorrelatedsectorsbytelephonedial-upmodule.Extensionisthemonitoringpartofthesystem,itcollecttheindoorsignalthroughtemperatureandhumiditysensors,gassensorsandsmokesensors,andtransporttheinformationtothehostthroughwirelesscommunicationmodulePTR8000,toachieveIntelligentcontrolofhome.Throughthestudyofthisarticle,theentireintelligenthomecontrolsystemhasbeenfurtherimproved!KeyWords：AT89C51;IntelligentControl;Sensor；Wirelesscommunication-3-目录摘要..................................................................................................................................1Abstract.....................................................................................................................................2引言..................................................................................................................................11绪论.......................................................................................................................................21.1研究智能家居的意义...............................................................................................21.2国内外智能家居的现状与发展趋势......................................................................21.2.1国内外智能家居的发展现状........................................................................21.2.2智能家居的发展趋势....................................................................................32智能家居控制系统的方案设计.........................................................................................52.1AT89C51单片机.......................................................................................................52.2系统的总体方案设计...............................................................................................63硬件设计..............................................................................................................................73.1主机系统的硬件设计...............................................................................................73.1.1可编程并行I/O口的扩展.............................................................................73.1.2键盘接口电路设计........................................................................................83.1.3液晶显示模块.................................................................................................93.1.4声光报警.......................................................................................................113.1.5自动报警系统...............................................................................................123.1.6电磁阀控制模块的设计..............................................................................143.1.7温湿度控制系统的硬件设计......................................................................153.2分机系统的硬件设计.............................................................................................163.2.1A/D转换芯片................................................................................................173.2.2温湿度传感器SHT11.................................................................................183.2.3气体传感器...................................................................................................203.2.4烟雾传感器...................................................................................................22-4-3.3主机与分机通讯部分.............................................................................................223.4电源模块的设计.....................................................................................................244系统的软件设计...................................................