The Journal of Korean Institute of Communications and Information Sciences (한국통신학회논문지)

The Korean Institute of Commucations and Information Sciences (한국통신학회)
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The 3-Dimensional Localization System Based on Beacon Expansion and Coordinate-Space Disassembly

비컨노드 확장과 좌표공간 분해 기반 3차원 위치인식시스템

  • 이호철 (동명대학교 컴퓨터미디어공학과 모바일기술연구실) ;
  • 이동명 (동명대학교 컴퓨터공학과)
  • Received : 2012.09.30
  • Accepted : 2012.12.26
  • Published : 2013.01.31
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Abstract

The 3-Dimensional(3D) localization system based on beacon expansion and coordinate-space disassembly for the design of the 3D localization system in indoor environment is proposed and the performance of the proposed system is analyzed in this paper. The localization ratio of the 3D localization system adapts the proposed algorithm is analyzed by the calculation of errors occurred in the coordinates that the mobile node locates. It is indicated that the average error distance of the 3D localization system adapts the proposed algorithm is less than that of the 3D localization system not adapts the proposed algorithm as 0.47m. The localization average distance error in 12 coordinates is indicated that the 1.5m case is less than 2.5m case as 0.38m by some experimentations under the condition that the distances between the ceiling and the mobile node are 1.5m and 2.5m measured from the ceiling respectively. It is seen that the 3D localization system based on beacon expansion and coordinate-space disassembly can improved the degradation of the quality of service that is caused by some conditions and performance differences in sensors.

본 논문에서는 실내환경에 적합한 3차원 위치인식시스템의 설계를 위해 비컨노드 확장 기반의 3차원 위치인식시스템을 제안하고 성능을 분석하였다. 또한 실제 이동노드가 위치한 좌표에 대한 오차를 각각 계산하여 제안하는 3차원 위치인식 보정알고리즘의 위치인식률을 분석하였다. 실험결과, 제안한 위치인식알고리즘을 적용한 3차원 위치인식시스템의 오차거리는 제안한 알고리즘을 적용하지 않은 경우에 비해 오차거리가 평균 0.47m 더 적은 것으로 나타났다. 그리고 천장을 기준으로 천장과 이동노드와의 거리가 1.5m 및 2.5m인 경우에 대해 각각 실험한 결과, 12개의 좌표에 대한 위치인식 평균 오차거리는 1.5m의 경우가 2.5m 경우 보다 0.38m 더 낮음을 확인하였다. 비컨노드 확장과 좌표공간 분해 기반의 3차원 위치인식알고리즘은 3차원 위치인식에서 센서의 조건과 성능차이로 인해 발생하는 서비스 품질의 저하를 향상시킬 수 있다.

Keywords

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