LocationTTrackingTSystemT                                             Tp.karithkeyan1,p.tamilan1,TSivakumar.V21TUGTStudent,TDepartmentTofTIT,TAdhiyamaanTCollageTofTEngineeringT(Autonomous),THosur,TTamilTnadu,2AssistantTProfessor,TDepartmentTofTIT,TAdhiyamaanTCollageTofTEngineeringT(Autonomous),THosur,TTamilTnaduT                                                           Email:[email protected],[email protected] Location Tracking System is used to find the locationit tracking system sumulating in web sites and mobile applications. inthis project, the admin and the users will have this application in their androi phone when the user login to the system, his GPS location will be updated to the admin as well as to the users.

The role of the admin is to add new object by entering his personal  TINTRODUCTIONTTheTtechnologyTofTlocatingTisTbasedTonTGOOGLETSERVICESTusesTtheTconceptTthatTaTpoweredTmobileTphoneTalwaysTcommunicatesTwirelesslyTwithToneTofTtheTclosestTbaseTstations,TsoTknowledgeTofTtheTlocationTofTtheTbaseTstationTimpliesTtheTcellTphoneTisTnearby. AdvancedTsystemsTdetermineTtheTsectorTinTwhichTtheTmobileTphoneTisTlocatedTandTroughlyTestimateTalsoTtheTdistanceTtoTtheTbaseTstation.TFurtherTapproximationTcanTbeTdoneTbyTinterpolatingTsignalsTbetweenTtowers.TQualifiedTservicesTmayTachieveTaTprecisionTofTdownTtoTearthTinTurbanTareasTwhereTmobileTtrafficTandTdensityTofTantennaTtowersT(baseTstations)TisTsufficientlyThigh.citationTneededTRuralTandTdesolateTareasTmayTseeTmilesTbetweenTbaseTstationsTandTthereforeTdetermineTlocationsTlessTprecisely. GSMTlocalizationTusesTmultilaterationTtoTdetermineTtheTlocationTofTGSMTmobileTphones,TorTdedicatedTtrackers,TusuallyTwithTtheTintentTtoTlocateTtheTuser.

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2TTheTdeviceTcanTeassantialTforTfamilyTtoTfindTTheTfamilyTmumbersTareTwhichTlocationTTmobileTinternetTtechnologyTandTwideTusageTofTSmartTPhones,TmoreTattentionsThaveTbeenTgivenTtoTnetworkTaccessTtechniques(GPS)TandTinteractiveTapplicationsTthroughTmobileTphones.TAndroidTorTwebsiteTlinkeTwhichTisTanTopenTsourceThasTbecomeTmostTpopularTsmartTphoneTusedTbyTpeople.TInTrecentTyears,TmoreTandTmoreTpeopleThaveTstartedTusingTtheTsmartTphone,Tlaptop,Tpad,imac,ect..TTheTnumberTofTsmartTphoneTusersTisTexpectedTtoTreachT15TbillionTaboveTbyT2018.TTrackingTorTdetectingTtheTpositionTofTpeopleTisTveryTimportantTforTvariousTreasonsTsuchTasTidentifyingTtheTculprit,TtoTnotifyTfriendsTaboutTseriousTissues,TtoTconveyTanTimportantTmessageTetc.

TForTthisTpurpose,TGlobalTPositioningTSystemT(GPS)TisTbeingTusedTwidely.TThisTpaperTproposesTtheTPositionTDetectionTandTTrackingTsystemTusingTAndroidTorTwebsiteTwhichTcanTbeTusedTtoTtrackTfriendsTandTfamilyTmembers.TTRELATEDTWORKTtheTdescribesTaTsystemTwhichTisTusedTtoTlocateTfriends,Tfamily,missTtTseTbyTusingTGPSTandTStandardTwebTtechnology.TThisTsystemTisTimplementedTusingTJ2MET&TJavaScript,TtheTrepositoryTandTtheTwebTclientTisTimplementedTusingTPHPTandTMySQL.

TSiriteanuTA.et.Tal.T2TpresentsTtheTcreationTofTSocialTNetworkTinTwhichTtheTusersTareTbeingTalertedTwhenTtheirTfriendsTareTaround.TAvailableTAndroidTlocationTservicesTlikeTGPSTtechnology,TwirelessTandTmobileTtowersTareTusedTtoTfindTanTapproximateTlocationTofTaTmobileTphoneTrunningTthisTprogramTandTthenTsharingTtheTlocationTinformationTthroughTtheTMeetTYouTorTviaTSMS.T3TdescribesTaTsystemTusingTwhichTyouTcanTlocateTtheTmobileTdeviceTusingTanotherTmobileTdeviceTbyTevenTsittingTatTyourThome.

TTheTsystemTonlyTrequiresTtheTinbuiltTGPSTandTGPRSTinTtheTdeviceTwhoseTlocationTisTtoTbeTtracked.T”WhereTareTyou?T–TATLocationTAwarenessTSystem”TisTaTprojectTthatThelpsTyouTtoTlocateTaTfriendTorTaTknownTpersonTwithoutTinformingTthatTperson.TLiTLiu.et.

Tal.T4TexplainsTtheTdesignTandTimplementationTofTAndroidTmobileToperatingTsystemTbasedTgroupTcommunicationTandTnavigationTsystem.TByTuseTofTGPSTandTGoogleTMap,TtheTsystemTimplementsTaTgeographicTlocationTandTrouteTplanningTbetweenTuserTandThisTfriend.TTheTsystemTprovidesTaTconvenientTandTefficientTplatformTforTusersTtravelTandTconnectionTbetweenTfriends.TShresthaTR.et.Tal.

T5TpresentsTandroid-basedTlocationTandTmessageTsharingTsystemTwhichTprovidesTaTsecuredTtwoTwayTcommunicationTbetweenTwebTserverTandTandroidTbasedTapplication.TTheTproposedTsystemTusesTJavaTprogrammingTlanguageTforTandroidTmobileTuserTapplication,TPHPTprogrammingTlanguageTasTwebTserver,TMySQLTasTexternalTdatabaseTtoTstoreTtheTdata.TSymmetricTcryptographyTisTusedTtoTassureTsecuredTcommunicationTbetweenTandroidTdeviceTandTwebTserver.TChandraTA.et.Tal.

T6TdiscussesTLocationTBasedTServiceTwhichTisTaTkeyTfactorTforTfutureTmobileTapplication.TTheTsystemTisTdevelopedTwithTJ2METAPITbasedTonTprovidingTlocationTbasedTserviceTusingTGPS.TTheTapplicationTisTimplementedTasTclientTserverTsystemTwhichThelpsTusersTtoTlocateTfriendsTandTfamilyTwithTwhomTheTwantsTtoTshareThisTlocation.TT7TpresentsTLocationTBasedTServicesT(LBS)TforTmobileTapplicationsTusingTGlobalTPositioningTSystemT(GPS).TheTapplicationTisTimplementedTasTaTclient-serverTsystemTthatThelpsTusersTtoTlocateTtheirTfamilyTmembersTandTreceiveTalertsTwhenTfriendsTareTnearby.TMobileTapplicationTdevelopedTusingTJ2METAPITatTclientTsideTandTServerTwasTimplementedTusingTPHPTandTDatabaseTMySQLTwhichTisTopenTsource.TJTJayashree.et.

Tal.T8TproposesTaTmobileTlocationTtrackingTapplicationTinTaTcellularTmobileTnetworkTbasedTonTLocationTBasedTService.TTheTproposedTsystemTisTimplementedTasTaTclientTserverTsystemTthatThelpsTtheTusersTtoTlocateTtheirTfriendsTandTreceiveTalertsTwheneverTtheyTareTnearby.TTPROPOSEDTSYSTEMTTheTpaperTdescribesTpositionTdetectionTandTtrackingTsystemTwhichThasTtheTfollowingTthreeTobjectives:T¾  DevelopTanTandroidTapplicationTwhichTcanTbeTusedTtoTlocateTtheTpositionTofTtheTfriendsTandTfamilyTmembers.T ¾  TheTdataTcanTTsharedTonline.

TSomeTadvantagesTareT•       End userTtracksThis/herTownTposition.T•       UserTcanTtrackTpositionTofTfriendsTandTfamilyTmember.T•       ItTcanTbeTusedTforTaTsocialTmediaTnetwork.

TTSomeTDisadvantagesTareTnetworkTconnectionTApplicationTcanTbeTusedTwithTgpsTenabled TTECHNOLOGYTBACKGROUNDTTheTlocationTofTaTmobileTphoneTcanTbeTdeterminedTusingTtheTserviceTprovider’sTnetworkTinfrastructure.TTheTadvantageTofTnetwork-basedTtechniques,TfromTaTserviceTprovider’sTpointTofTview,TisTthatTtheyTcanTbeTimplementedTnon-intrusivelyTwithoutTaffectingThandsets.TNetwork-basedTtechniquesTwereTdevelopedTmanyTyearsTpriorTtoTtheTwidespreadTavailabilityTofTGPSTonThandsets.T(SeeTUST5519760,TissuedT21TMayT1996TforToneTofTtheTfirstTworksTrelatingTtoTthis.

3) TheTaccuracyTofTnetwork-basedTtechniquesTvaries,TwithTcellTidentificationTasTtheTleastTaccurateTandTtriangulationTasTmoderatelyTaccurate,TandTnewerT”advancedTforwardTlinkTtrilateration”TtimingTmethodsTasTtheTmostTaccurate.TTheTaccuracyTofTnetwork-basedTtechniquesTisTbothTdependentTonTtheTconcentrationTofTcellTbaseTstations,TwithTurbanTenvironmentsTachievingTtheThighestTpossibleTaccuracyTbecauseTofTtheThigherTnumberTofTcellTtowers,TandTtheTimplementationTofTtheTmostTcurrentTtimingTmethods. OneTofTtheTkeyTchallengesTofTnetwork-basedTtechniquesTisTtheTrequirementTtoTworkTcloselyTwithTtheTserviceTprovider,TasTitTentailsTtheTinstallationTofThardwareTandTsoftwareTwithinTtheToperator’sTinfrastructure.

TFrequentlyTtheTcompulsionTassociatedTwithTaTlegislativeTframework,TsuchTasTEnhancedT9-1-1,TisTrequiredTbeforeTaTserviceTproviderTwillTdeployTaTsolution. equippedTwithTGPSTthenTsignificantlyTmoreTpreciseTlocationTinformationTcanTbeTthenTsentTfromTtheThandsetTtoTtheTcarrier. AnotherTapproachTisTtoTuseTaTfingerprinting-basedTtechnique,567TwhereTtheT”signature”TofTtheThomeTandTneighboringTcellsTsignalTstrengthsTatTdifferentTpointsTinTtheTareaTofTinterestTisTrecordedTbyTwar-drivingTandTmatchedTinTreal-timeTtoTdetermineTtheThandsetTlocation.TThisTisTusuallyTperformedTindependentTfromTtheTcarrier.TGMSHybridTpositioningTsystemsTuseTaTcombinationTofTnetwork-basedTandThandset-basedTtechnologiesTforTlocationTdetermination.

TOneTexampleTwouldTbeTsomeTmodesTofTAssistedTGPS,TwhichTcanTbothTuseTGPSTandTnetworkTinformationTtoTcomputeTtheTlocation.TBothTtypesTofTdataTareTthusTusedTbyTtheTtelephoneTtoTmakeTtheTlocationTmoreTaccurateT(i.e.,TA-GPS).

TAlternativelyTtrackingTwithTbothTsystemsTcanTalsoToccurTbyThavingTtheTphoneTattainTitsTGPS-locationTdirectlyTfromTtheTsatellites,TandTthenThavingTtheTinformationTsentTviaTtheTnetworkTtoTtheTpersonTthatTisTtryingTtoTlocateTtheTtelephone.TSuchTsystemsTincludeTGoogleTMaps,TasTwellTas,TLTE’sTOTDOA. ThereTareTalsoThybridTpositioningTsystemsTwhichTcombineTseveralTdifferentTlocationTapproachesTtoTpositionTmobileTdevicesTbyTWi-Fi,TWiMAX,TGSM,TLTE,TIPTaddresses,TandTnetworkTenvironmentTdata.

 TBearerTinterestATphone’sTlocationTcanTbeTuploadedTtoTaTcommonTwebsiteTwhereTone’sTfriendsTandTfamilyTcanTviewTone’sTlastTreportedTposition.TNewerTphonesTmayThaveTbuilt-inTGPSTreceiversTwhichTcouldTbeTusedTinTaTsimilarTfashion,TbutTwithTmuchThigherTaccuracy.TThisTisTcontroversial,TbecauseTdataTonTaTcommonTwebsiteTmeansTpeopleTwhoTareTnotT”friendsTandTfamily”TmayTbeTableTtoTviewTtheTinformation.LocatingTorTpositioningTtouchesTuponTdelicateTprivacyTissues,TsinceTitTenablesTsomeoneTtoTcheckTwhereTaTpersonTisTwithoutTtheTperson’sTconsent.TStrictTethicsTandTsecurityTmeasuresTareTstronglyTrecommendedTforTservicesTthatTemployTpositioning.TGPSTTheTGlobalTPositioningTSystemT(GPS)TisTaTutilityTthatTprovidesTusersTwithTpositioning,Tnavigation,TandTtimingTservices.TThisTsystemTconsistsTofTthreeTsegments:TtheTspaceTsegment,TtheTcontrolTsegment,TandTtheTuserTsegment.TTheTspaceTsegmentTconsistsTofTaTnominalTconstellationTofT24ToperatingTsatellitesTthatTtransmitTone-wayTsignalsTthatTgiveTtheTcurrentTGPSTsatelliteTpositionTandTtime.TTheTControlTSegmentTtracksTtheTGPSTsatellites,TuploadsTupdatedTnavigationalTdata,TandTmaintainsThealthTandTstatusTofTtheTsatelliteTconstellation.TTheTuserTsegmentTconsistsTofTtheTGPSTreceiverTequipmentTandTusesTtheTtransmittedTinformationTtoTcalculateTtheTuser’sTthreedimensionalTpositionTandTtime.TTAndroidTmobileToperatingTsystemTwhichToffersTaTunifiedTapproachTtoTapplicationTdevelopment.TDevelopersTneedTtoTdevelopTapplicationsTusingTAndroidTandTtheseTapplicationsTcanTrunTonTnumerousTdifferentTdevices,TasTlongTasTtheTdevicesTareTpoweredTusingTAndroid.TTTTGoogleTMapsTGoogleTMapsTprovidesTaTmapTofTanTopenTApplicationTProgrammingTInterfaceT(GoogleTMapsTAPI).TDevelopersTcanTeasilyTlinkTtheTGoogleTMapsTserviceTtoTtheirTapplication.TPHP:TTPHPTisTaTserverTsideTscriptingTlanguageTthatTisTembeddedTinTHTML.TItTisTusedTtoTmanageTdynamicTcontent,Tdatabases,TsessionTtracking,TevenTbuildTentireTe-commerceTsitesTandTitTisTintegratedTwithTaTnumberTofTpopularTdatabases.TTMyTSQLTTMySQLTisTaTfast,Teasy-to-useTRDBMSTbeingTusedTforTmanyTsmallTandTbigTbusinesses.TMySQLTworksTonTmanyToperatingTsystemsTandTwithTmanyTlanguagesTincludingTPHP,TPERL,TJAVA,Tetc.TMySQLTworksTveryTquicklyTandTworksTwellTevenTwithTlargeTdataTsets.TTPROPOSEDTSYSTEMTARCHITECTURETTheTProposedTSystemTarchitectureTisTshownTinTFig.T1TandTconsistsTofTtheTfollowingTsixTmodules:T1)   MobileTclient.T2)   Repository.T3)   WebTclient.T4)   MapTservice.T5)   MessageTAlertTsystemTforTdetectionTofTPositionTofTFriends.T6)   DataT(Documents,TAudio,TVideo)TsharingTcenter.TTRepositoryTheTrepositoryTconsistsTofTallTtheTinformationTaboutTtheTusers,TlocationTmaps,TandTtheTlocation-relatedTresults.TTWebTclientTheTinformationTinTtheTrepositoryTcanTbeTmanagedTandTviewedTusingTtheTwebTclient.TTheTuserTreceivesTtheTlocationTinformationTfromTtheTwebTclientTonTtheirTmobiles.TTMapTserviceTheTmapTserviceTisTanTagentTbasedTwhichTprovidesTbothTtheTmobileTandTtheTwebTclientTwithTmapTdata.TTheTmapTserviceTusesTGPSTtoTtrackTtheTpositionTofTfriendsTorTfamilyTmembers.TTheTlocationTinformationTisTupdatedTtoTwebTclientTeveryTtimeTbyTtheTmobileTphone.TTMessageTAlertTsystemTheTmessageTalertTsystemTdealsTwithTdetectingTpositionTofTourTfriendTandTfamilyTmemberTandTupdateTonTserver.TItTsendsTlocationTupdateTtoTtheTareTwithinTspecificTrangeTfromThim/her.TDataTsharingTcenter:TThisTmoduleTdealsTwithTsharingTofTdataTsuchTasTImage,TAudio,TVideoTandTDocumentTuserTwhenTfriends TTIMPLEMENTATIONTTheTproposedTsystemTisTimplementedTusingTAndroid.TTheTdatabaseTusedTisTMySQLTandTuserTcanTaccessTtheTdatabaseTusingTPHPTasTinterface.TMobileTClientTsystemTconsistsTofTfiveTmodulesTsuchTasTRegister/LoginTmodule,TGPSTmodule,TNotificationTmodule,TDataTsharingTmoduleTandTChattingTmodule.TTheTfunctioningTofTtheTproposedTsystemTisTasTshownTinTFig.2.TTheTDataTflowTdiagramTofTtheTproposedTsystemTisTasTdepictedTinTFig.T3.TRegister/LoginTmoduleTisTusedTtoTprovideTregistrationTofTnewTuserTandTloginTtoTtheTsystem.TRegisterTinterfaceTtakesTuserTinformationTandTafterTtheTregistrationTisTsuccessful,TuserTcanTloginTtoTtheTsystem.TTheTuserTisTvalidatedTusingTvalidateUser().TGPSTmoduleTdealsTwithTpositionTbasedTservices.TUsingTthisTmodule,TuserTcanTfindThis/herTownTposition,TfriendTpositionTandTfamilyTmemberTposition.TTheTpositionTtrackerTtracksTtheTpositionTusingTtrackPosition()Tmethod.TTheTpositionTtrackerTcanTbeTsetTforTaTparticularTfriendTusingTsetTracker()TandTtheTtrackerTcanTbeTswitchedToffTusingTcancelTracker().TTheTlocationTofTaTparticularTfriendTwhoTisTtrackedTcanTbeTfoundTbyTgetLocation().T     DataTsharingTmoduleTdealsTwithTsharingTtheTdataTsuchTasTImage,TText,TAudioTandTVideo.TTheTuserTdesiredTfilesTcanTbeTuploadedTusingTimageUpload(),TuploadVideo(),TuploadDocument().TTheTdesiredTfilesTcanTbeTdownloadedTusingTdownloadDoc(),TdownloadVideo().TTheTimageTfilesTcanTbeTsavedTusingTsaveImage().TTTFigurTNotificationTmoduleTsendsTaTnotificationTtoTtheTuserTwhenThis/herTfriendsTorTfamilyTmembersTcomeTaroundTtheTuser’sTareaTofTdirection.TATnotificationTisTgivenTtoTtheTuserTinTtheTformTofTaTpopupTmessageThavingTtheTlocationTinformationTalongTwithTlightTeT132.FunctionalTmoduleTofTsystemTorTsoundTorTvibratiousingTNotification().TTTTheTexperimentalTsetupTconsistsTofTaTsingleTmachineTwhichTactsTasTserverTrunningTwindowsTOS,TanTandroidTLashTKariTA.H,TParhizkarTB,TRaman,T”WidgetTBasedTPositionTSystemT(WBPS)TAnTinnovativeTmobileTApplication”,TIEEETInternationalTConferenceTonTComputerTEngineeringTandTTechnology,TVolumeT2,16-18TAprilT2010,TppT615-619,ISBN:978-1-4244-6347-3,TDOI:10.1109/ICCET.2010.5485646T.TTpoweredTsmartTphoneTwithTGPS.TTheTserverTandTphoneTareTconnectedTviaTInternet.TRegister/LoginTModule:TTheTuserTcanTregisterTtoTtheTapplicationTbyTprovidingTtheTuserTinformation.TAfterTtheTsuccessfulTregistration,TtheTuserTcanTloginTbyTprovidingTemailTandTpasswordTasTdepictedTinTFig.4.T14 TCONCLUSIONTechnologyTinTorderTtoTenhanceTtheTpositioningTexperience.TTheTpositionTdetectionTandTtrackingTsystemTeffectivelyTalertsTtheTuserTaboutTtheTpositionTofTaTpersonTusingTmobileTphone.TThisTlocationTandTpositionTofTpersonTinformationTcanTbeTsharedTonline.TAsTaTfutureTwork,TtheTproposedTsystemTcanTbeTimplementedTtoTupdateTtheTtrackedTpositionTdetailsTtoTtheTsocialTnetworkingTwebsitesTsuchTasTFacebook,TTwitterTetc.T  TREFERENCESTSiriteanuTA,TIfteneTA,T”Meetyou-SocialTnetworkingTonTAndroid”,T11thRoEduNetInternationalTConference,TSinaia,T17-19TJan.T2013,TppT1-6,TISBN:T978-1-4673-6114-9,TDOI:T10.1109/RoEduNet.2013.6511763.TIntelligenceTandTCommunicationTNetworks,TGwalior,T7-9TOct.T2011,ppT406-410,ISBN:9781-4577-2033-8,DOI:10.1109/CICN.2011.85.TKumarTN,T”WhereTareTyou?TATlocationTawarenessTsystem”,T4thInternationalTConferenceTonTAdvancedTComputing,TChennai,T13-15TDec.T2012,TppT1-5,ISBN:9781-4673-5583-4,TDOI:10.1109/ICoAC.T2012.6416798.TLiTLiu,TYanfangJing,TZengxiaoTChi,TJianBangChen,TChaoMa,T”DesignTandTimplementationTofTAndroidTPhoneTBasedTGroupTCommunicationTandTNavigationTSystem”,T2ndTInternationalTConferenceTonTConsumerTElectronics,TCommunicationsTandTNetworksT2012,T21-23TAprilT2012,TppT3174-3177,TISBN:978-1-4577-1414-6,DOI:10.1109/TCECet.2012.6201807.TShresthaR,TYaoAihong,T”DesignTofTSecureTLocationTandTMessageTSharingTSystemTforTAndroidTPlatform”,TInternationalTConferenceTonTComputerTScienceTandTAutomationTEngineering,TZhangjiajie,Vol1,T25-27TMayT2012,TppT117-121,TISBN:978-1-4673-0088-9,TDOI:10.11T09/CSAE.2012.6272561.TT1   ChandraTA,TJainTS,TQadeerTMTA,T”GPSTLocator:TAnTApplicationTforTLocationTTrackingTandTSharingTusingTGPSTforTJAVATEnabledTHandhelds”,TInternationalTConferenceTonTComputationalTT2   Al-SuwaidiTGTB,TZemerlyTMTJ,T”LocatingTFriendsTandTFamilyTUsingTMobileTPhonesTWithTGlobalTPositioningTSystemT(GPS)”,InternationalTConferenceTonTComputerTSystemsTandTApplications,TRabat,T10-13TMayT2009,TppT555-558,TISBN:978-1-4244-3807-5,TDOI:10.1109/AICTCSA.2009.5069380.TT3   JTJayashree,TKTNirupama,TJTVijayashree,TKTAnishTFatima,T”MobileTTrackingTApplicationTforTLocatingTFriendsTusingTLBS”,TInternationalTJournalTofTEngineeringTScienceTandTTechnologyT(IJEST),TJuneT2011,TVol.T3,TISSNT:T09755462.TT4   AbhijeetTTekawade,TAhemadTTutake,TRavindraTShinde,TPranayTDhole,TSumitHirve,T”MobileTTrackingTApplicationTforTLocatingTFriendsTusingTLBS”,TInternationalTJournalTofTInnovativeTResearchTinTComputerTandTCommunicationTEngineering,Vol.1,TIssueT2,TAprilT2013,ppT303-308,TISSN:T2320T-9798.TT5   AnkurTChandra,TShashankTJain,TMohammedTAbdulTQadeer,T”ImplementationTofTLocationTAwarenessTandTSharingTSystemTBasedTonTGPSTandTGPRSTUsingTJ2ME,TPHPTandTMYSQL”,T3rdTInternationalTConferenceTonTComputerTResearchTandTDevelopment,TShanghai,T11-13TTMarchT2011,TppT216-220,TDOI:T10.1109/ICCRDT.2011.5764007.TT11TKumarTS,TQadeerTMTA,TGuptaTA,T”LocationTbasedTservicesTusingTandroidT(LBSOID)”,TInternationalTConferenceTonTInternetTMultimediaTServicesTArchitectureTandTApplications,TBangalore,9-11TDec.T2009,ppT1-5,TISBNT978-1-4244-4792-3,TDOIT:10.1109/IMSAA.2009.54T39442.TT12TJunhuiTZhao,TCaiMuZheng,TDiTZhou,T”DesignTandTTImplementationTofTaTlocationTbasedTserviceTplatform”,T10thTTInternationalTConferenceTonTAdvancedTCommunicationTTechnology,TGangwon-Do,Vol1,T17-20TFeb.T2008,ppT529533,ISBN:978-89-5519-136-3,DOI:10.1109/ICACT.2008T.4493818.TT13TYuanTChengTLai,THanTF,TYiTHsuanTYeh,TChingTNengTLai,TYu-ChinTSzu,T”ATGPSTsystemTwithTQRTcodeTdecodingTandTfriendTpositioningTinTsmartTphones”,T2ndTInternationalTConferenceTonTEducationTTechnologyTandTComputer,TVol5,T22-24TJuneT2010,ppT66-70,TISBN:978-14244-6367-1,DOI:10.1109/ICETC.2010.5529943.TT14TNanTLi,TGuanlingTChen,T”SharingTLocationTinTOnlineTSocialTNetworks”,TIEEEconferenceonNetwork,TSeptember/OctoberT2010,TppT20-25,TISBN:0890-8044/10.TT15Twww.developer.android.com.TT  16https://en.wikipedia.org/wiki/Real-time_locating_system17TCHAPIN,TJ.C.:T’AntennaTsteeringTsystemsT—Tpast,TpresentTandTfuture’.TIEETConferenceTonTEarthTStationTTechnology,T1970,Tpp.T420—424 TLiTLiu,TYanfangJing,TZengxiaoTChi,TJianBangChen,TChaoMa,T”DesignTandTimplemen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