[1]吴胜成. 基于置换码的RFID防冲突算法[J].计算机技术与发展,2015,25(02):60-63.
　WU Sheng-cheng. An Anti-collision Algorithm in RFID Based on Substitution Code[J].,2015,25(02):60-63.
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 基于置换码的RFID防冲突算法()
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《计算机技术与发展》[ISSN:1006-6977/CN:61-1281/TN]

卷:
25
期数:
2015年02期
页码:
60-63
栏目:
智能、算法、系统工程
出版日期:
2015-02-10

文章信息/Info

Title:
 An Anti-collision Algorithm in RFID Based on Substitution Code
文章编号:
1673-629X（2015)02-0060-04
作者:
 吴胜成
 合肥工业大学 管理学院
Author(s):
 WU Sheng-cheng
关键词:
 ; 射频识别; 防碰撞; 置换码; 曼彻斯特编码
Keywords:
 ; radio frequency identification; anti-collision; substitution code; Manchester encoding
分类号:
TP301.6
文献标志码:
A
摘要:
 为了解决RFID系统中标签识别信息碰撞问题，文中基于现有的确定性二叉树防碰撞算法，通过引入置换码机制，提出了一种基于置换码的RFID防冲突算法。新算法中读卡器依据碰撞位个数的不同，发送不同的查询命令。若读卡器发现碰撞位个数仅为两位或者三位，则命令标签发送其碰撞位编码的置换码，从而快速识别这几个碰撞编码。仿真结果表明，新算法可以有效地减少标签识别过程中的查询次数和通信量，提高了标签识别效率和系统吞吐率。
Abstract:
 In order to solve the problem of information collision during the process of tags identification,based on the existing binary search tree algorithm,by introducing substitution code unit mechanism,propose an anti-collision algorithm in RFID based on substitution code. In the new algorithm,the card reader sends different request command based on the number of the collision position. In order to rec-ognize the tags rapidly,the card reader sends the new request command if the card reader finds the number of the collision position are 2 or 3. The simulation results show that the new algorithm can effectively reduce the times of tag identification and the information trans-ferred in the process of query,improving the efficiency of tags identification and the system throughput.

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更新日期/Last Update: 2015-04-28