吉林大学学报(工学版) ›› 2015, Vol. 45 ›› Issue (6): 1887-1894.doi: 10.13229/j.cnki.jdxbgxb201506024

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Radio frequency identification indoor location algorithm with virtual tags

CHEN Zeng-qiang1,2,3, GUO Feng1,2, NIU Pan-feng1,2, ZHANG Qing3   

  1. 1.College of Computer & Control Engineering, Nankai University, Tianjin, 300071, China;
    2.Tianjin Key Laboratory of Intelligent Robotics, Nankai University, Tianjin, 300071, China;
    3.College of Science, Civil Aviation University of China, Tianjin 300300, China
  • Received:2014-02-08 Online:2015-11-01 Published:2015-11-01

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Abstract:

This paper proposes a method to compare the Received Signal Strength Indicator (RSSI) of target tag with the RSSI of reference tags while taking many reference tags as a whole. First, this method figures out the area of target tag; then adds virtual reference tags in this area; and finally determines the position of target tag via weighted estimate. The simulation and hardware experiments demonstrate that the improved algorithm has better stability and stronger anti-interference without increasing any physical cost. Besides, the location accuracy is enhanced obviously, thus the algorithm is more applicable to indoor location system.

Key words: computer application, passive radio frequency identification, location system, LANDMARC algorithm, reference tag, virtual tag

CLC Number: 

  • TN911.23
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