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1、DesignandimplementationofindoorenvironmentfirealarmsystembasedonWirelessSensorNetworkAuthor:XiuWenFu，WenfengLi，LinYangAsanewnetworktechnology，wirelesssensornetworks(WSN)arewidelyusedinvariousemergencyeventsbecauseoftheirstronglocalcooperativesensingandtheabilitytointerpretdatafromtheenvironmentInthi
2、spaper,weproposeafirealarmsystemcalledfirealarmingsystemindoorenvironment(fasie)，whichinnovativelyintegrateswirelessfirealarmnetworkwithhandfireextinguishingrescuesupportsystem。Unliketraditionalwirelesssensornetworksthatimplementfirenetworks,thefasieisabletofireintofire,includingfirealarms,providing
3、fullrangeofservices,firerescuingandFirefighterpositioning.InordertoexplainFaheybette，rwefirstgiveageneraldescriptionoffasieandintroducethearchitectureofthesystem。Then，thehardwareandsystemperformanceareintroduce。dKeywords:WirelessSensorNetworks(WSN),indoorenvironment,firealarmsystem,handheldfirerescu
4、esupportsystem1 IntroductionWiththenewmanufacturingandintegrationtechnology，reducethecost,thesizeofthewirelesssensor,wehavewitnessedanotherrevolution,isconducivetothecontrolandobservationofourlifeandthephysicalworld,asthenetworktechnologytodo,microsensorsconnectedtoeachindividualandorganizationdeepl
5、yembeddedintothephysicalenvironmentofinformationexchangenetworkwecanobservewiththeenvironmentandinaloyal,previouslynotrealtimehumancomputerinteraction。Asoneofthemostinfluentialaspectsoffireprotectionapplications，publicsafetyactivitieshavealsoachievedsignificantbenefitsintheemergenceofwirelesssensorn
6、etworksandtheirfurtherdevelopmentin2.Inthispaper,weproposeawirelessfirealarmsystemfirealarmsystemforindoorenvironment(fasie)themaincontributionistheintroductionofthewirelessnetworkandhandheldfirealarmfirerescuefirealarmandrescuesupportsystemtoprovidecomprehensivetechnicalsuppor。tTherestofthisarticle
7、isorganizedasfollows.Section51。2describesthestate-of-theartofexistingfirealarmsystems.Inthe51.3section，fasieisintroducedfromthepointofviewofsystemcompositionandfunction.The51.4sectiondescribesthefasielayeredarchitecture.The51.5sectionintroducesthekeyhardwareoffasieThe51。6partanalyzestheperformanceof
8、fasie.Finally,conclusionsandfutureworkarepresentedinsect第1页共18页51。7.2 relatedworkBecausewirelesssensornetworkshavegreatpotentialinthefieldoffireprotection，manyfireprotectionsystemshavebeendevelopedbasedonWSN.Butinmostcases，theonlypurposeofthenetworkistoobtainenvironmentaldata,whicharecollectedanddis
9、playedinabasestation,storedinadatabase，orsenttoaremotelocation3,4.Here,severalrepresentativeproposalsdifferfromthetraditionalparadigmasfollows:(1) CFFDRS5isaforestfirethathasbeenextensivelyimplementedintheUnitedStatesandnewzealand。Themaincomponentofthesystemisthefireweatherindex(FWD),andthisindexist
10、hekeymeteorologicalelementthroughthefire,suchastemperature,evaluationofrelativehumidity，windspeedandprecipitation.TheacquisitionofCFFDRSinformationreliesonwirelesssensornodesdeployedinthousandsofforestedareas.TheCFFDRSmonitoringnetworkcollectsvariousinformation(e。g.，temperature，windspeed,andhumidity
11、)。Thebasestationofthemonitoringnetworkprovidesenvironmentalinformationdirectlytotheremoteserver。(2) scier6isacomprehensivesystemforthedetection,monitoringandpredictionofnaturaldisasters。Scierstargetapplicationsareurbanandruralareas。Theuniquecomponentinscieristhelocalalarmcontrolunit，usedtocontrolthe
12、wirelesssensornetwork(WSN)andisresponsiblefortheearlydetection,locationandsubsequentfirealarmfunctionofthefire。Scierdevelopswirelesssensornodesintwodifferenturbanandruralareas:citizens,master，spublicsensors,sensors.Thecitizensoftheowner，ssensors,andsensorsofpublicownership,sensors，andinstallationsar
13、edifferent,dependingontheirapplicationscenarios。(3) Eidos7isacomprehensivesystemincludingalarm，firealarmandrescue。Themaincomponentofthesystemisanetworkcomposedofthousandsofsensornodes,deployedinthefieldofunmannedaerialvehicles(UAV).Anotherkeyelementofthesystemisthehandhelddevicethatfirefighterscarry
14、。Thenetworkisresponsibleformonitoringthemonitoringareaandsendingenvironmentalinformationtoremoteservers.Handhelddevicesareintegratedwithlightweightbrowsersthathaveaccesstoremotedatabasesordatacen。tersInsummary，althoughthesystemhasexperiencedsignificantimprovementcomparedwiththetraditionalcases，mosto
15、fthemonlyfocusontherealizationofsingleprofessionalfirealarmnetworkorfirerescuesupportnetwork，resultingininabilitytoundertakemorecomplextasks.Toacertainextent，theydowastealotofresources.Therefore，thefasieaimstoprovidemorecomprehensiveservicesforfireprotectionactivities,includingfiremonitoring,firefig
16、hting，rescueandfirepersonnelpositioning.第 # 页 共 18 页3 systemintroductionThefasiesystemconsistsoftwocomponentapplicationarchitectures：awirelessfirealarmnetworkandahandheldfirerescuesupportsystem.Wirelessfirealarmnetworksaredeployedbyhundredsofwirelesssensornodesinbuildingsandotherapplicationscenarios.Sincewirelesssensornodeshavespecializedapplicationsinfirescenarios,eachnodeisencapsulatedinfireprotectionpackageWit
