Radio frequency identification (RFID) is a kind of wireless automatic identification technology, which completes data transmission and target recognition through airborne transported electromagnetic waves. In addition to wireless identification, RFID technology also has characteristics of high reliability, convenient operation, identification distance, faster recognition and identification of multiple targets at the same time, large label storage capacity and the data can be rewritten. Based on the common problems in HF RFID books management system, this article studies the communication principle of UHF RFID system, and the working process of the anti-collision algorithm adopted by ISO/IEC18000-6c communication protocol dynamic Q algorithm, and analyzes the root causes of the common problems, as well as the solutions.%射频识别技术（RFID）是一种无需接触的无线自动识别技术，通过空中传输的电磁波进行数据传输和目标识别。RFID技术除了无线识别的特点外还具有可靠性高、操作便捷、识别距离远、识别速度快、同时识别多个目标物、标签存储容量大和数据可改写等优势。文章以超高频RFID图书管理系统实际应用中常见问题着手，研究超高频RFID系统通信原理，ISO/IEC18000-6c通信协议采用的防碰撞算法———动态Q算法的工作流程，分析常见问题产生的根源，以及常见问题的解决方法。
展开▼
