计算机应用 ›› 2012, Vol. 32 ›› Issue (01): 288-291.DOI: 10.3724/SP.J.1087.2012.00288

• 典型应用 • 上一篇    下一篇

基于新颖跳跃式动态搜索的RFID防碰撞算法

冯娜1,潘伟杰1,李少波1,2,杨观赐2   

  1. 1. 教育部现代制造技术重点实验室(贵州大学),贵阳 550003
    2. 中国科学院 成都计算机应用研究所,成都 610041
  • 收稿日期:2011-06-22 修回日期:2011-09-05 发布日期:2012-02-06 出版日期:2012-01-01
  • 通讯作者: 潘伟杰
  • 作者简介:冯娜(1984-),女,内蒙古巴彦淖尔人,硕士研究生,主要研究方向:物联网;潘伟杰(1983-),男,河南漯河人,博士研究生,主要研究方向:物联网、多目标优化;李少波(1973-),男,湖南岳阳人,教授,博士生导师,主要研究方向:物联网、计算设计、制造业信息化;杨观赐(1983-),男,湖南嘉禾人,博士研究生,主要研究方向:计算智能。
  • 基金资助:

    教育部新世纪优秀人才支持计划项目(NCET09-0094);国家863计划项目(2009AA043200)

RFID anti-collision algorithm based on novel jumping and dynamic searching

FENG Na1,PAN Wei-jie1,LI Shao-bo1,2,YANG Guan-ci2   

  1. 1. Key Laboratory of Advanced Manufacturing Technology (Guizhou University), Ministry of Education, Guiyang Guizhou 550003, China
    2. Chengdu Institute of Computer Application, Chinese Academy of Sciences, Chengdu Sichuan 610041, China
  • Received:2011-06-22 Revised:2011-09-05 Online:2012-02-06 Published:2012-01-01
  • Contact: PAN Wei-jie

摘要: 扼要分析目前针对标签防碰撞问题采用的防碰撞算法优缺点的基础上,基于跳跃式动态搜索(JDS)算法的思想,提出了一种新颖的JDS标签防碰撞算法。算法将栈思想引入到新的跳跃式策略前后搜索中,避免出现空闲时隙。在读写器问询时,利用标签反馈信息记忆部分已知信息,采用不定长动态传输方式及调整策略识别标签的未知数据位,减少了读写器搜索次数及系统传输量。算法仿真结果表明,系统传输量大大减少,吞吐量有明显提高。

关键词: 无线射频识别, 防碰撞算法, 调整策略, 跳跃式搜索, 动态传输

Abstract: The paper briefly introduced the merits and shortcomings of the existing anti-collision algorithms. Based on the idea of Jumping and Dynamic Searching (JDS) algorithm, a Novel JDS (NJDS) algorithm for tags' anti-collision was proposed. The algorithm brought stack into the new jumping before and after searching strategy to reduce the number of collision slots and avoid idle slots. When requested by readers, it adopted dynamic transmission and variable length adjustment strategy, and used the known information remembered by the feedback tags' information to identify the unknown data bits of tags, which reduced the number of search of readers and the transmission of system. The analysis on simulation results indicates that the proposed algorithm performs significantly better than the existing anti-collision algorithms. The transmission is greatly reduced, and throughput of the system has increased significantly.

Key words: Radio Frequency Identification (RFID), anti-collision algorithm, adjustment strategy, jumping search, dynamic transmission

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