RFID-based localization with Non-Blocking tag scanning

Authors: Keyvan Kashkouli Nejad, Xiaohong Jiang, Michitaka Kameyama

Abstract: 
The simple and cheap passive RFID tag systems have recently been used for efficient localization of indoor mobile robots, where each RFID tag stores its own absolute position and the mobile robot carrying an RFID reader scans the RFID tags to localize itself. The available localization schemes using passive RFID systems do not consider the scanning delay which may cause location estimation error, especially when the robot moves at a high speed. In this paper, a new Non-Blocking scanning (reading) scheme is proposed to avoid collisions so that the scanning delay, and consequently the localization error, can be reduced. This scheme avoids collisions among tag replies by assigning tag IDs based on the FCA coloring scheme. Theoretical and simulation studies indicate that the new Non-Blocking scheme combined with the new tag arrangement pattern can achieve a good RFID localization performance in terms of both estimation error and scanning delay with reduction of tag/reader required complexities.

Keywords:
RFID
Passive tags
Indoors
Localization
Automatic

Published in: Ad Hoc Networks (Volume 11, Issue 8, January 2013)

Publisher: Elsevier

ISSN Information: 1570-8705

RFID-based localization with Non-Blocking tag scanning

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