中文摘要：

针对目前市场上射频识别阅读器只能识别单协议标签的情况，设计了一种能够识别ISO／IEC15693和ISO／IEC14443—3TYPEA两种协议标签的射频识别阅读器。采用TI公司的13．56MHz频段下的芯片S6700作为射频模块，现场可编程逻辑器件作为控制器，和单片机相比，减少了外围电路。同时针对同时读取多标签的情况，提出了一种改进的动态二进制防碰撞算法，用计数器保存标签的休眠程度，理论分析和仿真结果表明其性能优于动态二进制算法。

英文摘要：

As now many RFID readers in the market can only identify tags applying for a single protocol, a design scheme of a multiprotocol RFID reader is put forward in order to identify tags tallied with protocol ISO/IEC15693 and ISO/IEC14443-3 TYPE A. A TI S6700 chip is used as a radio frequency transceiver working on the frequency of 13.56 MHz.. FPGA is used as controller, compared with single-chip microcomputer, it needs less suburbs circuits. In view of reading many tags,an improved dynamic binary anti-collision algorithm is provided. It uses a counter to store the dormancy degree.Both theoretic results and simulation performance show that this algorithm outperforms the dynamic binary algorithm.