本科生毕业设计（论文）摘要为快捷有效的预测火灾的发生，减少人们生命和财产损失；解决“传统火灾报警器只对单一物理或化学信号进行探测而容易使报警系统出现误报或漏报”等问题从而设计了本系统。本系统采用主从式结构，具有反应迅速、工作稳定、安全等特点。主节点与从节点的单片机都采用AT89C52芯片来控制。为了实现主节点对从节点的实时监测，在主节点和从节点处都设计有CAN通信电路模块，由控制器SJAl040和收发器82C200组成CAN通信接口。从节点的外围电路由烟雾传感器SS-168、光电传感器ST-178、温度传感器DS18B20和声光报警装置组成。单片机巡回检测温度、红外辐射、烟雾等传感器，当温度采集、红外检测、烟雾检测模块中任意两项检测到异常时系统发出声光报警，直到任意一项异常排除时系统才自动停止声光报警。本系统在每个从节点跟主节点处都设有声光报警装置，它方便工作人员能快速的找到哪一个从节点所在位置有火灾发生，同时也提醒了在场的人员此处有火灾发生，从而能让工作人员快速的到达火灾现场跟现场人员快速灭火，提高了本系执行度。关键词：传感器，火灾报警系统，CAN总线关键词：关键词1；关键词2；关键词3；关键词4AbstractFortheefficientandeffectivepredictionfires,reducingpeople'slivesandpropertylosses;solvethe"conventionalfirealarmonlyforasinglephysicalorchemicalsignaldetectionandalarmsystemiseasytomakefalsepositivesorfalsenegatives"andotherissuesinordertodesignthissystem.Thesystemusesamaster-slavestructure,witharesponsive,stable,andsecurityfeatures.ThemasternodeandslavenodesareusingAT89C52microcontrollerchiptocontrol.Inordertoachievetheprimarynodeforreal-timemonitoringfromthenode,themasternodeandslavenodesaredesignedwithCANcommunicationcircuitmodule,thecontrollerandtransceiver82C200compositionSJAl040CANcommunicationinterface.PeripheralcircuitsfromthenodebytheSS-168smokesensors,ST-178photoelectricsensorsandtemperaturesensorsDS18B20soundandlightalarmdevicecomponent.Microcontrollercircuitdetectiontemperature,infraredradiation,smokeandothersensors,whenthetemperatureacquisition,infrareddetector,smokedetectionmoduledetectsanytwoabnormalaudiblealarmwhenthesystemuntilthesystematanyonetimeonlyexceptionruleoutsoundandlightalarmautomaticallystops.Thesystemateachnodefromthenodewiththemainfeaturesoundandlightalarmdevices,whichfacilitatestaffcanquicklyfindthelocationfromthenodewhichthereisfire,butalsotoremindthepresenceofthestaffherethereisfire,whichallowsemployeestoworkquicklyarriveatthefirescenewithlivefirequickly,improvethedegreeofimplementationofthedepartment.Keywords:Sensor,FireAlarmSystem,CANBus目录TOC\o"1-3"\f\h\zHYPERLINK\l"_Toc73004314"第1章绪论PAGEREF_Toc730