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Improved Location Algorithm of VIRE Based on RFID

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Using linear interpolation method,VIRE algorithm simply treats the signal strength value and distance of the reference tag as a linear relationship,leading to the inaccuracy of signal strength value for virtual reference tags.The threshold in VIRE algorithm is a fixed value that needs repeatedly adjustment through experiments,which results in the complicated algorithm.To solve these problems,an improved algorithm is proposed in this paper,including nonlinear interpolation algorithm,dynamic threshold setting and tag self-correction of fuzzy map,which builds an indoor positioning system based on reference tags.The experimental results show that the improved algorithm can improve the positioning accuracy and improve the stability of positioning results under bad environmental conditions without increasing the number of reference tags.

VIRE algorithmindoor positioningnonlinear interpolation algorithmdynamic threshold

Bao Hui、Zhi Jiuying

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College of Electronic and Communication Engineering, North China Electric Power University

2014

电气(英文版)
中国电机工程学会

电气(英文版)

ISSN：1003-4994
年,卷(期)：2014.25(2)
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