RFID系统中一种改进的防冲撞算法  

Improved anti-collision algorithm in RFID system

作　　者：张颇[1] 崔喆[1] 

机构地区：[1]中国科学院成都计算机应用研究所,成都610041

出　　处：《计算机应用》2008年第8期2141-2143,共3页journal of Computer Applications

摘　　要：提出了一个在RFID系统中改进的防冲突算法,该算法基于Aloha算法并结合了二叉树算法。当有大量标签同时需要识别时,首先通过对标签上一轮的碰撞情况来估计待识别的标签数,然后对标签进行分类或改变帧的大小来降低标签发生碰撞的概率,从而提高识别的效率。Based on Aloha and binary tree algorithm, this paper proposed an improved anti-collision algorithm in RFID system . When lots of tags need to be identified at the same time, it first estimated the number of unread tags according to the last collision, then divided the tags into different subsets or adjusted the frame size to reduce the collision probability. As a result, the identification efficiency is improved with the proposed method.

关 键 词：射频识别 防冲突算法 ALOHA算法 

分 类 号：TP311.11[自动化与计算机技术—计算机软件与理论]