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1、基于物聯(lián)網(wǎng)的火災監(jiān)控系統(tǒng)設計摘要隨著通信技術的發(fā)展和人們生活水平的提高,安防監(jiān)控系統(tǒng)逐漸進入大眾的視線并成為熱門的研究課題。作為安防系統(tǒng)的子系統(tǒng),家庭火災監(jiān)控系統(tǒng)在減少家庭災害發(fā)生,提高人們生活質(zhì)量方面發(fā)揮了重要的作用。傳統(tǒng)的家庭火災監(jiān)控系統(tǒng)往往存在不嫌不便、單傳感器監(jiān)測準確度不高、遠程監(jiān)控能力不強等諸多缺陷。網(wǎng)絡化的火災監(jiān)控系統(tǒng)在系統(tǒng)造價上價格不菲,降低監(jiān)控系統(tǒng)成本和功耗,提高系統(tǒng)集成度和準確度是本課題設計目標。為此,本文提出了一種基于物聯(lián)網(wǎng)的嵌入式家庭火災監(jiān)控系統(tǒng)。利用ZigBee技術構建家庭監(jiān)控網(wǎng)絡的傳輸鏈路,依托物聯(lián)網(wǎng)基礎網(wǎng)絡設施Interne
2、t,實現(xiàn)遠程家庭火災監(jiān)控。設計多傳感器監(jiān)測環(huán)境狀態(tài),并將監(jiān)測數(shù)據(jù)在智能網(wǎng)關中心進行融合處理,提高監(jiān)測準確度,得到最終的監(jiān)測結(jié)果;以嵌入式路由芯片RT3052實現(xiàn)智能網(wǎng)關,降低系統(tǒng)的成本和功耗。為了實現(xiàn)該系統(tǒng),分別對無線傳感器網(wǎng)絡和智能網(wǎng)關部分進行了詳細的硬件和軟件設計。為家庭火災監(jiān)測設計煙霧、氣體、火焰、溫度等傳感器電路;為入侵監(jiān)測設計了紅外熱釋電傳感電路。以ZigBee單芯片CC2530為核心,構建家庭內(nèi)部網(wǎng)絡通信平臺,利用ZigBee2006協(xié)議棧實現(xiàn)了無線網(wǎng)絡數(shù)據(jù)通信。經(jīng)過測試,設計的無線ZigBee網(wǎng)絡網(wǎng)關平臺能完成和ZigBee和Intern
3、et的交互,能正確采集多傳感器數(shù)據(jù),監(jiān)控火情,較高概率對火災進行監(jiān)測與報警,達到了預期的目標。關鍵詞:火災監(jiān)控;ZigBee;多傳感器;智能網(wǎng)關;數(shù)據(jù)融合ABSTRACTWiththedevelopmentofcommunicationstechnologyandtheimprovementofpeople'slivingstandards,securitymonitoringsystemisgraduallyknownbyusandhasbecomeahotresearchtopic.Asasubsystemofthesecuritymonitori
4、ngsystem,homefiremonitoringsystemplaysanimportantroleinreducingfamilydisasters,improvingthequalityofpeople'sLive.Traditionalhomefiremonitoringsystemhasmanydefects,suchasinconvenientwiring,lowmonitoringaccuracyofsingle-sensorandpoorremotemonitoringcapacity.Thenetworkedfirecontrol
5、systemonthesystemcostisnotcheap,loweringthecostofmonitoringandcontrolsystemandpowerconsumption,improvethesystemintegrationandaccuracyofthistopicdesigngoal.Tothisend,thispaperproposesaembeddedhomefiremonitoringsystembasedonInternetofthings.UsingZigBeetechnologytobuildfamilymonito
6、ringnetworktransmissionlink,relyingontheInternetinfrastructurenetworkInternet,realizethefamilyfireremotemonitoring.Multiplesensorstomonitorenvironmentalstateisdesigned,andthemonitoringdatafusionprocessinginthecenteroftheintelligentgateway,toimprovemonitoringaccuracy,getthefinalm
7、onitoringresults;RoutingonembeddedchipRT3052intelligentgateway,reducethesystemcostandpowerconsumption.Inordertorealizethesystemofwirelesssensornetworkandintelligentgatewaypartcarriedonthedetaileddesignofhardwareandsoftware.Designedforhomefiremonitoringsmoke,gas,suchasflame,tempe
8、raturesensorcircuit;Monitoringfortheinvasionofp