基于EPC Gen2防碰撞机制的研究与优化

Study and Optimization of the Anti-collision Mechanism Based on EPC Gen2 Protocol

RFID系统必须解决多个标签同时接入阅读器发生碰撞的问题.文中针对EPC Gen2算法中Q值调整算法和多标签读取机制的不足,在不改变原有命令格式和不增加命令的条件下提出优化方案,通过对多种方案的分析比较提出改进的多标签响应机制.

The problem of the collision when multiple tags access to a reader at the same must be solved in RFID system.This paper introduces the anti—collision algorithm in the EPC Gen2 protocol,and optimize the standard Q value adjustment algorithm and multi—tag reading mechanisms under the conditions that do not change the original order form and not to increase the command,through the analysis of a variety of programs to propose an optimized multi—label response mechanism.