一种基于DFSA防碰撞协议的FBF改进算法研究  

ON AN IMPROVED FBF ALGORITHM BASED ON DFSA ANTI-COLLISION PROTOCOL

作　　者：肖海慧[1,2] 王红明[1] 

机构地区：[1]常州纺织服装职业技术学院 [2]常州大学城研发培训中心,江苏常州213164

出　　处：《计算机应用与软件》2013年第7期305-308,共4页Computer Applications and Software

摘　　要：标签碰撞是射频识别RFID传感系统中常见问题。在研究LowerBound算法和Schoute算法的基础上,提出一种精度较高、计算量很低的防标签碰撞估计新方法,即Rcoll算法,并从仿真结果上进行验证。由于在实际研究防碰撞算法应用中,空闲时隙、成功时隙和碰撞时隙的时长并不相等,推导出在时隙不等长时获得最高效率的方法,并从理论和仿真结果上论证了改进方法的有效性。最后提出一种加入扫描帧的FBF方式,以避免空闲时隙和碰撞时隙的浪费,提高识别的效率。Tag collision is a common problem in RFID （radio frequency identification） systems. In this paper we present a new tag anti- collision estimation approach with higher precision and low computation cost, called Rcoll, based on LowerBound and Schoute algorithms studies, and has verified it from simulation result. Since in real study of anti-collision algorithm applications, the time length of idle, success and collision slots are not equal, we deduce a method that achieves the highest efficiency in unequal time slot situation, and demonstrate the effectiveness of improved approach from the theory and by the results of simulation.＇ At last, we further propose an FBF way with scanned frame added to enhance the identification efficiency and to avoid the waste of the idle and collision time slots.

关 键 词：RFID 防碰撞 FBF Q算法 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]