Earticle

초록

영어

Indoor location based service (ILBS) is one of the current hottest research issues. ILBS cannot be realized without indoor positioning solutions. Among the many existing indoor positioning methods, the Wireless Local Area Network (WLAN) based trilateration is one of the most economic and easiest methods to be installed. The WLAN-based trilateration estimates the distance between an access point (AP) and a mobile device with the signal strength of the signal from the AP. Then, the WLAN-based trilateration estimates the location of the mobile device with the estimated distances and the coordinates of the APs. The first contribution of this paper is to propose a floor map repository that allows users to upload floor map files (AutoCAD files) and register coordinates of APs so that any software developer can use them after getting authorization. One of the drawbacks of the trilateration is its inaccuracy. The RF (radio frequency) signals between APs and a mobile device are very sensitive to the noise and the estimated distances are very inaccurate. The second contribution of this paper is that after discussing the pros and cons of various modified versions of trilateration, we find our own solution for indoor positioning and implement and publish our solution as a web service so that any software developer can use it.

목차

Abstract
 1. Introduction
 2. Versions of Trilateration
  2.1 Trilateration
  2.2 Kalman filter
  2.3 Weighted Centroid Localization
  2.4 Our Method
 3. AP Location Upload
 4. Implementation and Experiments
 5. The Proposed Indoor Positioning
 6. Implementation
 7. Conclusions
 Acknowledgments
 References

키워드

저자

• Jaegeol Yim [ Dept. of Computer Engineering Dongguk University at Gyeongju, Gyeongju, Gyeongbuk, Korea ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  International Journal of Control and Automation

• 간기

  월간

• pISSN

  2005-4297

• 수록기간

  2008~2016

• 십진분류

  KDC 505 DDC 605