Journal of Institute of Control, Robotics and Systems (제어로봇시스템학회논문지)

Institute of Control, Robotics and Systems (제어로봇시스템학회)
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Position Estimation Using Magnetic Field Map

자기장 지도를 이용한 위치 추정

  • 김한솔 (부산대학교 전자전기공학과) ;
  • 문우성 (부산대학교 전자전기공학과) ;
  • 서우진 (부산대학교 전자전기공학과) ;
  • 백광렬 (부산대학교 전자전기공학과)
  • Received : 2012.09.27
  • Accepted : 2013.03.03
  • Published : 2013.04.01
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Abstract

Geomagnetic is refracted by building's wall and pillar. Therefore refracted geomagnetic is able to be used as feature point. In a specific space, a mobile device that is equipped with magnetic sensor array measures 3-axis magnetic field for each point. Magnetic field map is acquired by collecting the every sample point in the magnetic field. The measured magnetic field must be calibrated, because each magnetic sensor has a distortion. For this reason, sensor distortion model and sensor calibration method are proposed in this paper. Magnetic field that is measured by mobile device matches magnetic field map. Result of the matching is used for position estimation. This paper implements hardware system for position estimation method using magnetic field map.

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References

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