Non-blocking tag scanning for passive RFID localization

Keyvan Kashkouli Nejad, Xiaohong Jiang, M. Kameyama
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引用次数: 1

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 with a high speed. In this paper, a new Non-Blocking scanning (reading) scheme is proposed to avoid collisions such that the scanning delay and consequently the localization error can be reduced. This scheme avoids collision among tags replies by assigning tags 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.
无源RFID定位的非阻塞标签扫描
简单而廉价的无源RFID标签系统最近被用于室内移动机器人的有效定位,其中每个RFID标签存储自己的绝对位置,移动机器人携带RFID阅读器扫描RFID标签来定位自己。现有的无源RFID系统定位方案没有考虑扫描延迟,扫描延迟会导致定位误差,尤其是在机器人高速运动时。本文提出了一种新的非阻塞扫描(读取)方案,以避免碰撞,从而减少扫描延迟,从而减少定位误差。该方案通过基于FCA着色方案分配标签id,避免了标签应答之间的冲突。理论和仿真研究表明,新的无阻塞方案结合新的标签排列模式在估计误差和扫描延迟方面都能获得良好的RFID定位性能。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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