RFID系统中基于不精确锚点的移动用户定位方案

计算机科学 ›› 2015, Vol. 42 ›› Issue (Z11): 305-309.

RFID系统中基于不精确锚点的移动用户定位方案

任莉,黄清

南京工程高等职业学校信息工程系南京211135,江苏海事职业技术学院信息工程学院南京211100

出版日期:2018-11-14 发布日期:2018-11-14

Location Scheme of Mobile Users Based on Imprecise Anchors in RFID Systems

REN Li and HUANG Qing

Online:2018-11-14 Published:2018-11-14

摘要/Abstract

摘要： 目前大多数基于RFID的移动用户定位算法使用锚点信息来实现精确定位,然而许多情况下很难发现或部署足够多的锚点。为此,提出一种基于不精确锚点的移动用户定位方案。首先,使用大量带有粗略位置信息的标签作为锚点来计算用户的位置,此时不需要任何其他准确的锚点信息,有效避免了昂贵的锚点部署成本；然后,提出两种高时效算法来准确跟踪移动用户,即基于类别基数的协议和基于RSSI的协议。实验结果表明,改进的方法可实现移动用户的准确实时定位,该算法的精度比基准算法高30%以上。

关键词: RFID,定位,锚点,标签,精度

Abstract: In order to accurately position the mobile user,most current localization algorithms based on RFID need anchor assist.It is usually difficult to find or deploy enough anchor nodes for accurate localization.To solve this problem,a location scheme of mobile users based on imprecise anchors was proposed.Firstly,a large number of tags with approxi-mate locations are used as anchor nodes to compute the users’ locations.It does not require any additional precise anchor nodes,thus effectively avoiding the significant deployment cost.Then,two time-efficient algorithms were proposed to accurately locate the moving user,i.e.,the category cardinality based protocol and the RSSI based protocol.Experimental results indicate that the solutions can accurately locate the mobile users in a real-time approach.The accuracy of the improved method improves over 30% than the base solution.

Key words: RFID,Location,Anchor,Tags,Accuracy

任莉,黄清. RFID系统中基于不精确锚点的移动用户定位方案[J]. 计算机科学, 2015, 42(Z11): 305-309. https://doi.org/

REN Li and HUANG Qing. Location Scheme of Mobile Users Based on Imprecise Anchors in RFID Systems[J]. Computer Science, 2015, 42(Z11): 305-309. https://doi.org/

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