基于CC2530的室内定位系统设计与实现.docx 立即下载
2024-11-15
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基于CC2530的室内定位系统设计与实现.docx

基于CC2530的室内定位系统设计与实现.docx

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基于CC2530的室内定位系统设计与实现
Title:DesignandImplementationofanIndoorLocalizationSystemBasedonCC2530
Abstract:
Indoorlocalizationsystemshavegainedconsiderableattentionduetotheirpotentialapplicationsinvariousdomains,suchasassettracking,securitymonitoring,andlocation-basedservices.ThispaperpresentsthedesignandimplementationofanindoorlocalizationsystembasedonCC2530,anIEEE802.15.4compliantSystem-on-Chip(SoC).ThesystememploysaBluetoothLowEnergy(BLE)beaconinfrastructurecombinedwithtrilaterationtechniquestoaccuratelydeterminethelocationofmobiledeviceswithinanindoorenvironment.Themaincontributionsofthisresearchincludethedesignofthehardwareandsoftwarecomponentsofthesystem,aswellastheevaluationofitsperformancethroughexperimentalmeasurements.
1.Introduction:
IndoorlocalizationisachallengingtaskduetotheabsenceofGPSsignalsinindoorenvironmentsandthepresenceofobstaclesthataffectwirelesssignalpropagation.Varioustechniqueshavebeenproposedtoaddressthisissue,includingfingerprinting,receivedsignalstrength(RSS)monitoring,andtime-of-flightmeasurements.Inthispaper,wefocusontrilaterationtechniquesbasedonBLEbeacons.
2.SystemDesign:
Theindoorlocalizationsystemiscomposedoftwomaincomponents:theCC2530-basedBLEbeaconsandthemobiledevicesbeinglocalized.TheBLEbeaconsarestrategicallyplacedthroughouttheindoorenvironmenttoprovidereferencepointsforlocalization.Themobiledevices,equippedwithBLEreceivers,continuouslyscanforbeaconsignalsandestimatetheirdistancesfromeachbeaconusingRSSmeasurements.
3.BLEBeaconInfrastructure:
TheBLEbeaconsaredesignedusingtheCC2530SoCandprogrammedtotransmitperiodicbroadcastpacketscontainingtheiruniqueidentifier,signalstrength,andbatterystatus.Thebeaconsignalsarereceivedbythemobiledevicesandusedfordistanceestimation.Thebeaconinfrastructureiscarefullydeployedtoensuresufficientsignalcoverageandminimalinterference.
4.TrilaterationAlgorithm:
Todeterminethelocationofamobiledevice,atrilaterationalgorithmisemployed.Thisalgorithmutilizestheestimateddistancesfromatleastthreebeaconstocomputethede
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