Journal of Advanced Marine Engineering and Technology

The Korean Society of Marine Engineering (한국마린엔지니어링학회)
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Self-positioning fusion system based on estimation of relative coordinates

  • Cho, Hyun-Jong (Advanced Development Team, SANGSIN BRAKE) ;
  • Lee, Sung-Geun (Division of Electrical and Electronics Engineering, Korea Maritime and Ocean University) ;
  • Cho, Woong-Ho (Digital Electronics and Information, Daegu Technical University) ;
  • Noh, Duck-Soo (Department of Electronic Engineering, Kyungil University) ;
  • Seo, Dong-Hoan (Division of Electrical and Electronics Engineering, Korea Maritime and Ocean University)
  • Received : 2014.04.08
  • Accepted : 2014.06.02
  • Published : 2014.06.30
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Abstract

Recently, indoor navigation has been applied in large convention centers by using wireless sensor networks (WSNs), which provide not only a user's path to be traveled but also orientation and shopping information to increase user's convenience. This paper presents the localization system for estimating relative coordinates without pre-deployment of the reference node based on ultra wide band (UWB) ranging system, which is relatively suitable for indoor localization compared to other wireless communications, and azimuth sensor. The proposed localization system which consists of an azimuth sensor and a mobile node composed of three nodes estimates relative coordinates of the reference node without applying any recursive and time consumption algorithms. Also, in the process of estimating relative coordinates of the reference node, ranging errors are minimized through the proposed technique and the number of nodes can be reduced. Experimental results show the feasibility and validity of the proposed system.

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References

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