基于分组处理的RFID标签防碰撞算法

摘要

由于现有的确定性 RFID 标签防碰撞算法存在识别效率不高，数据交换量大等问题，提出了一种引入部分响应机制的分组式 RFID 标签防碰撞算法。算法采用分组策略与部分响应相结合的方式，读写器按一定次序依次识别每个分组内的标签，减少了标签碰撞概率和标签识别数量；对每个分组内的标签采取部分响应机制进行识别，能有效减少数据通信量。仿真结果表明，该算法相比其他几种算法，具有识别效率高、数据交换量小等优势。%To solve the problem of the inefficient identification and the large amount of data transmission, an enhanced group-based anti-collision algorithm based on partial responses for RFID tag was proposed. The algorithm used the grouping strategy and partial response mode combines. The tags in each group were identified by reader in turn, it could reduce the probability of collision and the number of the identified tags. The partial response mechanism was used to identify all tags in each group, it reduce the data traffic effectively. The simulation results show that, compared with several other algorithms, the proposed algorithm has the advantage of efficient identification and a small amount of data exchange.