The Beacons Self-Calibration Technology Combined with Building Information Modeling

doi:10.13190/j.jbupt.2020-152

Journal of Beijing University of Posts and Telecommunications ›› 2021, Vol. 44 ›› Issue (3): 61-66.doi: 10.13190/j.jbupt.2020-152

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The Beacons Self-Calibration Technology Combined with Building Information Modeling

WANG Yu-wei¹, WANG Xiao-xuan¹, SHEN Jie², WANG Zhi¹

1. College of Control Science and Engineering, Zhejiang University, Hangzhou 310027, China;
2. School of Geography, Nanjing Normal University, Nanjing 210023, China

Received:2020-08-29 Online:2021-06-28 Published:2021-06-23

Abstract

Abstract: The global navigation satellite system does not work ideally, because the satellite signal decays rapidly indoors due to the occlusion and absorption of building materials. As a result, the localization technologies based on beacons become state-of-art indoor localization technologies. The accuracy of these localization technologies is tightly related to the beacons' calibration accuracy. Based on the fact that beacons are usually set on the walls, a beacons self-calibration technology based on building information modeling is proposed to improve the performance of self-calibration. In the meantime, Cramer-Rao lower bound (CRLB) is used to analyse its performance in theory. Based on the semidefinite programming self-calibration algorithm, the proposed algorithm considers to use the building information modeling. CRLB analysis and simulation shows the proposed algorithm efficiently improve the accuracy of self-calibration.

Key words: indoor localization, location-based services, self-calibration, building information modeling, Cramer-Rao lower bound

CLC Number:

P208

WANG Yu-wei, WANG Xiao-xuan, SHEN Jie, WANG Zhi. The Beacons Self-Calibration Technology Combined with Building Information Modeling[J]. Journal of Beijing University of Posts and Telecommunications, 2021, 44(3): 61-66.

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