Passive and Cost Effective People Indoor Location Tracking System for Ubiquitous Healthcare

유비쿼터스 헬스케어를 위한 저비용, 수동형 실내 위치추적 시스템

  • 정완영 (동서대학교 컴퓨터정보공학부) ;
  • ;
  • 임효택 (동서대학교 컴퓨터정보공학부)
  • Published : 2006.06.01


Wireless sensor network plays a prominent role in tracking the location of the target outdoor or indoor. This paper describes the implementation of the passive indoor location tracking system using ultrasonic and RF technologies that provides accurate location in the form of user space and position in three dimensions. Our system used a combination of RF and ultrasonic technologies to provide a location-support service to users and applicants. Ceiling-mounted beacons were spread through the building, publishing location information on an RF signal. The person carried a listener and the listener determined the location by calculating the distance from three beacons using triangulation algorithm.


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