Abstract: Multiple tags anti-collision technology is a key problem in RFID system，the quality of anti-collision algorithm directly influences the ability of RFID system process multiple tag.The paper studies on principle of HF tag anti-collision algorithm and analyzes binary searching algorithm and SLOTS algorithm.A dynamic mixed anti-collision algorithm and similar-octal-search anti-collision algorithm is advocated based on this knowledge.The performance analysis shows that the anti-collision algorithm has high-efficient and excellent performance.

Key words: radio frequency identification, anti-collision algorithm, dynamic mixed anti-collision algorithm, similar-octal-search anti-collision algorithm

摘要： 多张电子标签的防碰撞技术是射频识别中的一个关键技术，防碰撞算法的好坏直接影响着RFID系统处理多张电子标签的能力。研究了高频电子标签的防碰撞原理，在二进制搜索算法和时隙SLOTS算法的基础上提出了动态混合算法和类八进制搜索算法，并对算法进行了性能分析。实验结果表明，这两种算法具有更优越的性能。

关键词: 射频识别, 防碰撞算法, 动态混合算法, 类八进制算法