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

  • 제38C권1호
  • /
  • Pages.131-140
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  • 2013
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  • 1226-4717(pISSN)
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  • 2287-3880(eISSN)
한국통신학회 (The Korean Institute of Commucations and Information Sciences)
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지구 자기장 기반의 Fingerprint 실내 위치추정 방법 연구

Indoor Position Technology in Geo-Magnetic Field

  • 허수정 (영남대학교 정보통신공학과) ;
  • 송준열 (영남대학교 정보통신공학과) ;
  • 박용완 (영남대학교 정보통신공학과)
  • 투고 : 2012.03.31
  • 심사 : 2012.12.24
  • 발행 : 2013.01.31
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초록

기존의 전파에 의존한 실내 위치측위 시스템의 한계점 발생으로 실내환경에서 정확도 향상을 위한 새로운 방법의 도입이 필요한 시점이다. 최근 생태계 모방 기술이 미래의 핵심기술이 되었고, 이에 따라 귀소본능을 가진 동물들이 지구자기장을 탐색하여 생체자석으로 위치친지에 사용하는 점을 적용한 정확한 위치 측위 방법을 연구하였다. 실내 위치측위를 위한 새로운 자원인 지구자기장의 적용 가능성을 확인하기 위해 건물구조, 구성재료를 구분하고 실제 자기장센서를 탑재할 수 있는 구조물과 데이터수집 모듈을 설계한 뒤, Fingerprint 기법의 위치측위 시스템을 구성하여 위치측위 자원으로서의 지구자기장의 적용 가능성을 연구하였다. 위치측위 시스템 성능 평가에서 기존의 무선랜이 설치된 건물에서는 지구자기장 세기 기반의 위치측위 시스템이 무선랜 기반 위치측위 시스템과 유사하거나 약 20% 성능이 높이 나타났다. 이와같이 실내 위치측위를 위한 인프라 설치가 되어 있지 않는 환경에서는 지구자기장이라는 고유의 지구자원으로 실내 위치측위가 가능하다.

Due to the limitations of the existing indoor positioning system depending on the radio wave, at present, it is required to introduce a new method in order to improve the accuracy in indoor environment. Recently, bio-inspired technology has become the future core technology. Thus, this study examined the accurate positioning method applying the abilities that animals with homing instinct measure their position by searching geomagnetic field with the use of their biomagnets. In order to confirm the applicability of geomagnetic field, a new source for indoor positioning, this study separated the constituent materials and building structure and designed the structures that can carry the actual magnetic field sensor and the data collection module. Subsequently, this study investigated the applicability of geomagnetic field as a positioning source by establishing the positioning system of Fingerprint method. In performance evaluation of the positioning system, the geomagnetic strength-based positioning system was similar to or approximately 20 percent higher than the wireless LAN-based positioning system in the buildings with the existing wireless LAN. Thus, in the environment without infrastructure for indoor positioning, the geomagnetic, an independent earth resource, can make it possible to realize the indoor positioning.

키워드

참고문헌

  1. A. Narzullaev, M. Kang, S. Hur and Y. Park, "Received signal strength indication vs. MagneticFields for Indoor Real-time Location Systems," in Proc. The 9th IEEE Vehicular Technology Society Asia Pacific Wireless Communications Symp. 2012 (APWCS 2012), Kyoto, Japan, 2012.
  2. J. Song, S. Hur, Y. Kim, K. Yoo and Y. Park "Comparison of WLAN and Geomagnetic Fields for Indoor Positioning," in Proc. IEEE Indoor Positioning and Indoor Navigation 2012 (IPIN2012), Sydney, Australia, Nov, 2012
  3. H. Jeon, N. Kim and H. Park, "A study on effective location determination system in indoor environment," J. Commun. Networks (JCN), vol. 34, no. 2, pp. 119-129, Feb. 2009.
  4. H. Kim S. Kim, J. Choi and Y. Park, "A Study of repeater effect adjustment algorithm in CDMA indoor positioning system," J. Commun. Networks (JCN), vol. 33, no. 8, pp. 605-612, Aug. 2008.
  5. A. LaMarca, Y. Chawathe, S. Consolvo, J. Hightower, I. Smith, T. Sohn, J. Howard, J. Hughes, F. Potter, J. Tabert, P. Powledge, G. Borriello and B. Schilit, Place lab: Device positioning using radio beacons in the wild, Pervasive Computing, 2005.
  6. P. Bahl, and V. N. Padmannabhan, "RADAR: an in-building RF-based user location and tracking system," in proc. IEEE Int. Conf. on Comput. Commun. (INFOCOM), vol.2, pp.775-784, Mar, 2000.
  7. Y. Cheng, Y. Chawathe, A. LaMarca and J. Krumm, "Accuracy characterization for metropolitan-scale Wi-Fi localization," in Proc. ACM int. conf. Mobile systems, applications, and services, pp. 233-245, Jun, 2005.
  8. A. W. Tsui, W. C. Lin, W. J. Chen, P. Huang, and H. H. Chu, "Accuracy performance analysis between war driving and war walking in metropolitan Wi-Fi localization," Trans. Mob. Comput., vol. 9, no. 11, pp. 1551-1562, Nov, 2010. https://doi.org/10.1109/TMC.2010.121
  9. D. Cox, R. R. Murray, and A. W. Norris., "Measurements of 800MHz radio transmission into Buildings with metallic walls," Bell Systems Tech. Journal, vol. 62. no.9, pp. 2695-2717, Nov. 1983. https://doi.org/10.1002/j.1538-7305.1983.tb03200.x
  10. E. J. Violette, R. H. Espeland, K. C. and Allen., "Millimeter-wave propagation characteristics and channel performance for urban-suburban environments," National Telecommunications and Information Administration, NTIA Report, pp. 88-239, Dec. 1988
  11. A. LaMarca, Y. Chawathe, S. Consolvo, J. Hightower, I. Smith, T. Sohn, J. Howard, J. Hughes, F. Potter, J. Tabert, P. Powledge, G. Borriello and B. Schilit, "Place lab: device positioning using radio beacons in the wild," To appear, Pervasive 2005, Munich Germany.
  12. H. Liu, H. Darabi, Banerjee, and P. J. Liu, "Survey of wireless indoor positioning techniques and systems," IEEE Trans. Systems, Man, and Cybernetics, Part C: App. and Rev,, vol. 37, no. 6, pp. 1067-1080, Nov. 2007 https://doi.org/10.1109/TSMCC.2007.905750
  13. K. Kaemarungsi, and P. Krishnamurthy., "Modeling of indoor positioning systems based on location fingerprinting," in proc. IEEE Int. Conf. on Comput. Commun. (INFOCOM), pp. 1012- 1022, Mar. 2004
  14. N. Karlsson, E. di Bernardo, J. Ostrowski, L. Goncalves, P. Pirjanian, and M.E. Munich, "The vSLAM algorithm for robust localization and mapping," in proc. IEEE Int. Conf. Robotics and Automation, pp. 24- 29, 18-22, Apr. 2005.
  15. S. Suksakulchai, S. Thongchai, D.M. Wilkes, and K. Kawamura, "Mobile robot localization using an electronic compass for corridor environment," in Proc. IEEE Int. Conf. Systems, Man, and Cybernetics, pp. 3354-3359, Oct, 2000.
  16. Isaac K Adusei, K. Kyamakya and K. Jobmann, "Mobile positioning technologies in cellular networks: an evaliation of their performance metrics," in proc. MILCOM 2002, pp. 1239-1244, Oct. 2002.
  17. J. Syrjarinne, "Studies of modern technologies for personal positioning," Doctor of Technology Thesis Work, Tampere University of Technology, Mar. 2001
  18. J. Khodjaev, S. Hur, and Y. Park, "Low complexity LTS-based NLOS error mitigation for localization," Ann. Telecommun, vol. 67, no. 9/10, pp. 471-476, Oct. 2012. https://doi.org/10.1007/s12243-011-0279-2