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基于随机时隙的RFID读写器防冲突方法

张光山 张烁 张有光

张光山, 张烁, 张有光等 . 基于随机时隙的RFID读写器防冲突方法[J]. 北京航空航天大学学报, 2013, (6): 782-786.
引用本文: 张光山, 张烁, 张有光等 . 基于随机时隙的RFID读写器防冲突方法[J]. 北京航空航天大学学报, 2013, (6): 782-786.
Zhang Guangshan, Zhang Shuo, Zhang Youguanget al. Reader anti-collision algorithm based on random slot for RFID systems[J]. Journal of Beijing University of Aeronautics and Astronautics, 2013, (6): 782-786. (in Chinese)
Citation: Zhang Guangshan, Zhang Shuo, Zhang Youguanget al. Reader anti-collision algorithm based on random slot for RFID systems[J]. Journal of Beijing University of Aeronautics and Astronautics, 2013, (6): 782-786. (in Chinese)

基于随机时隙的RFID读写器防冲突方法

基金项目: 国家重点基础研究发展计划(973)资助项目(2010CB731803)
详细信息
  • 中图分类号: TN925

Reader anti-collision algorithm based on random slot for RFID systems

  • 摘要: 针对密集读写器环境下的无线射频识别(RFID,Radio Frequency Identification)多读写器冲突情况,提出了一种基于随机时隙并通过中央计算机协调的读写器防冲突方法.首先,中央计算机发送每轮起始命令和时隙指令,读写器根据当前利用率随机选择时隙.选择当前时隙的读写器若没有接收到忙信号则发送信标并侦听,若无邻近读写器发送信标则开始读写标签,否则该轮回停止工作.若时隙末存在没有接收到忙信号的读写器则在额外时隙发送二次信标.与现有的分布式防冲突方法相比,该方法具有较好的吞吐量和公平性.

     

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出版历程
  • 收稿日期:  2012-07-02
  • 网络出版日期:  2013-06-30

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