计算机工程与应用 ›› 2010, Vol. 46 ›› Issue (20): 42-45.DOI: 10.3778/j.issn.1002-8331.2010.20.012

• 研究、探讨 • 上一篇    下一篇

ISO18000-6 Type C标准中防冲突技术的改进

蒋 泰1,2,高广尚2   

  1. 1.天津大学 计算机学院,天津 300072
    2.桂林电子科技大学 计算机与控制学院,广西 桂林 541004
  • 收稿日期:2009-01-21 修回日期:2009-03-23 出版日期:2010-07-11 发布日期:2010-07-11
  • 通讯作者: 蒋 泰

Improved anti-collision technology for ISO18000-6 Type C

JIANG Tai1,2,GAO Guang-shang2   

  1. 1.School of Computer,Tianjin University,Tianjin 300072,China
    2.School of Computer & Control,Guilin University of Electronic Technology,Guilin,Guangxi 541004,China
  • Received:2009-01-21 Revised:2009-03-23 Online:2010-07-11 Published:2010-07-11
  • Contact: JIANG Tai

摘要: 基于帧时隙ALOHA协议,对ISO18000-6 Type C标准中采用的防冲突算法(Q算法)进行改进。在帧的结束处,改进的Q算法通过检测机制来进行Q值的更新。因为改进的Q算法中每个清点周期的帧大小都会自动地取较优值,所以降低了识别所需要的总时隙数和周期数。仿真结果显示改进的Q算法比Type C标准中的Q算法更有效。

关键词: 射频识别, 帧时隙ALOHA, 防冲突算法

Abstract: Based on framed slot ALOHA protocol,the anti-collision algorithm(Q algorithm) of ISO18000-6 Type C is improved.At the end of frame,improved Q algorithm updates Q by means of a detection mechanism.Because the length of frame in every round of improved Q algorithm automatically adaptes the better value,improved Q algorithm reduces the number of slots and rounds of identification.Simulation results show that improved Q algorithm is more efficient than the Q algorithm of Type C protocol.

Key words: Radio Frequency Identification(RFID), frame-ALOHA, anti-collision

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