计算机与现代化

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一种自适应帧长RFID标签防碰撞算法

  

  1. 1.河南工业职业技术学院实验设备管理处,河南南阳473000;
    2.河南工业职业技术学院网络管理中心,河南南阳473000
  • 收稿日期:2014-08-04 出版日期:2014-11-27 发布日期:2014-12-10
  • 作者简介:马琰(1978-),男,河南南阳人,河南工业职业技术学院实验设备管理处讲师,硕士,研究方向:计算机网络应用与图形图像。
  • 基金资助:
    河南省2013年重点科技攻关项目(132102210520)

 An Adoptive Frame Based Anticollision Algorithm for RFID Systems

  1. 1. Laboratory & Equipment Management Department, Henan Polytechnic Institute, Nanyang 473000, China;

      2. Network Computing Center, Henan Polytechnic Institute, Nanyang 473000, China
  • Received:2014-08-04 Online:2014-11-27 Published:2014-12-10

摘要:

无线识别技术基于无线射频标签与无线读卡器的信息交互,实现无需人工干预的标签识别,因此无线识别技术受到现代化物流的重视。由于中转站货物数量庞大,而读卡器的硬件设计必须
考虑实现复杂度,因此在识别货物的无线标签过程中存在无线标签信息碰撞的现象。目前,概率性标签防碰撞算法的标签识别率较低,面对大量待识别标签的工作效率有限。本文提出一种自适应帧长的
无线识别标签防碰撞算法AFA,分析结果表明该算法可以自适应调整检测帧长度,提高标签识别率。

关键词:  , 无线识别, 概率性算法, 防碰撞算法

Abstract:

To identify targets without manpower interaction, RFID technology relies on wireless message exchange between tags and reader. In this way, RFID technology
attracts attention in modern logistics industry. Limited by design complexity of RFID reader, collision happens when identifying a lot of tags. Current probabilistic
anticollision algorithms have low identifying probability. They are not efficient enough for identification of large number tags. An adoptive frame based anticollision
algorithms(AFA) is proposed in this paper. The analysis results show that this algorithm could adjust frame length adaptively, thus the identifying probability rises.

Key words:  , RFID; probabilistic algorithm; anticollision algorithm