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1、.S.Leeetal.:APyroelectricInfraredSensor-basedIndoorLocation-AwareSystemfortheSmartHomeAPyroelectricInfraredSensor-basedIndoorLocation-AwareSystemfortheSmartHomeSukLee,Member,IEEE,KyoungNamHa,KyungChangLee,Member,IEEEAbstract—Smarthomeisexpectedtooffervariousintelligentservicesbyrecognizingresiden
2、tsalongwiththeirlifestyleandfeelings.Oneofthekeyissuesforrealizingthesmarthomeishowtodetectthelocationsofresidents.Currently,theresearcheffortisfocusedontwoapproaches:terminal-basedandnon-terminal-basedmethods.Theterminal-basedmethodemploysatypeofdevicethatshouldbecarriedbytheresidentwhilethenon-
3、terminal-basedmethodrequiresnosuchdevice.Thispaperpresentsanovelnon-terminal-basedapproachusinganarrayofpyroelectricinfraredsensors(PIRsensors)thatcandetectresidents.Thefeasibilityofthesystemisevaluatedexperimentallyonatestbed.IndexTerms—smarthome,location-basedservice,pyroelectricinfraredsensor(
4、PIRsensor),location-recognitionalgorithmI.INTRODUCTIONThereisagrowinginterestinsmarthomeasawaytoofferaconvenient,comfortable,andsaferesidentialenvironment[1],[2].Ingeneral,thesmarthomeaimstoofferappropriateintelligentservicestoactivelyassistintheresident’slifesuchashousework,amusement,rest,andsle
5、ep.Hence,inordertoenhancetheresident’sconvenienceandsafety,devicessuchashomeappliances,multimediaappliances,andinternetappliancesshouldbeconnectedviaahomenetworksystem,asshowninFig.1,andtheyshouldbecontrolledormonitoredremotelyusingatelevision(TV)orpersonaldigitalassistant(PDA)[3],[4]....Fig.1.Ar
6、chitectureofthehomenetworksystemforsmarthomeEspecially,attentionhasbeenfocusedonlocation-basedservicesasawaytoofferhigh-qualityintelligentservices,whileconsideringhumanfactorssuchaspatternofliving,health,andfeelingsofaresident[5]-[7].Thatis,ifthesmarthomecanrecognizetheresident’spatternoflivingor
7、health,thenhomeappliancesshouldbeabletoanticipatetheresident’sneedsandofferappropriateintelligentservicemoreactively.Forexample,inapassiveserviceenvironment,theresidentcontrolstheoperationoftheHVAC(heating,ventilating,
