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http://dx.doi.org/10.5916/jkosme.2012.36.6.850

Real time indoor positioning system using IEEE 802.15.4a and sensors  

Cho, Hyun-Jong (한국해양대학교 전기전자공학과 대학원)
Hwang, Kwang-Il (한국해양대학교 기게.에너지시스템공학부)
Noh, Duck-Soo (경일대학교 전자공학과)
Seo, Dong-Hoan (한국해양대학교 전기전자공학부)
Publication Information
Journal of Advanced Marine Engineering and Technology / v.36, no.6, 2012 , pp. 850-856 More about this Journal
Abstract
Bilateration using two fixed nodes has been used in the field of the real time indoor location system in the narrow space such as building or ship passage. However, as the distance between the fixed nodes increases or any obstructions exist in their zone, it is difficult to detect the location of mobile node(user) due to the degradation of its reception ratio. In order to compensate for these problems, this paper presents, based on IEEE 802.15.4a chirp signal, a new real time indoor location system using stride measurement algorithm which can calculate the location through sensors attached to user. The proposed system consists of an ultrasonic sensor to measure the leg length, a geomagnetic sensor to recognize the user's orientation, and an inertial sensor to obtain the angle between the legs. The experimental results are shown that the proposed system has twice or more accurate output compared with conventional indoor location method in the section which is partially out of communication reachability.
Keywords
USN; CSS; Inertial; Indoor positioning system;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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1 Y.-K. Park, "A high-precision indoor localization technique using ultrasonic and/or IEEE 802.15.4a based bilateration", M.S. Dissertation, Department of Daegu University, Daegu, 2009.
2 M.-K. Oh, M.-J. Kim, and J.-Y. Kim, "Low data-rate location awareness UWB technology for ubiquitous home" ETRI Journal, vol. 21, no. 5, pp. 30-39, 2006.
3 K.-Y. Lee, "A study on accuracy enhancement of indoor local positioning system based on Zigbee", The Journal of Korean Institute of Information Technology, vol. 8, no. 5, pp. 85-91, 2010.
4 N. S. Kim, H. J. Kang, and K. H. Lee, "A study on the location estimation for ubiquitous environment", Proceedings of the 2006 KIIT Summer Conference, pp. 255-259, 2006.
5 J.-S. Kim, J.-U. Yang, and S.-H. Yang, "A study on the location awareness system using TOA (time of arrival) of CSS (chirp spread spectrum) algorithm", The Journal of The Korea Institute of Intelligent Transport Systems, vol. 7, no. 2, pp. 13-25, 2008.
6 B.-K. Kim, W.-V. Park, Y.-W. Ko et al., "Indoor positioning system using inertial sensor and cricket", The journal of Korean Institute of Information Technology, vol. 9, no. 5, pp. 17-24, 2011.
7 S.-K. Park and Y.-S. Suh, "Pedestrian navigation system using inertial sensors and vision", Trans. KIEE, vol. 59, No. 11, 2010
8 J.-H. Boo, "Motion tracking system using inertial sensors", M.S. Dissertation, Department of Ulsan University, Ulsan, 2011.
9 H. Hong, J. G. Lee, C. G. Park et al., "A leveling algorithm for an underwater vehicle using extended Kalman filter", Proceeding of the IEEE 1998 Position Location and Navigation Symposium, Palm Springs, California, U.S.A., pp. 280-285, 1998.