应用虚拟仪器技术的超高频RFID读写器设计  

Application of Virtual Instrument Technology in UHF RFID Read-Write Device Design

作　　者：谷志伟[1] 肖云龙[1] 吴秋莉[2] 张炜[2] 

机构地区：[1]广西电网公司钦州供电局,钦州535000 [2]广西电网公司电力科学研究院,南宁530023

出　　处：《计算机与数字工程》2015年第3期527-532,共6页Computer & Digital Engineering

摘　　要：射频识别技术在资产管理领域中逐渐受到青睐,针对现有识别技术开发周期长、测试速度慢的弊端,论文提出采用虚拟仪器和数字信号处理技术,结合自定义超高频协议,研究了一种新的读写器系统。该系统用软件代替硬件实现超高频射频识别,能对超高频RFID标签自动测试,能够实现电子标签从物理层到应用层的一致性测试,能对多种宏观参数测量和分析。实验结果表明,该系统在单标签及多标签的情况下能克服单一标准的限制,很好地模拟读写器调制、解调、编码、解码、循环冗余校验、逻辑控制等基本功能,具有成本低、集成度高和扩展性好等优势。Radio frequency identification technology in the field of asset management attracts more and more attention,but the relatively slow development,validation and testing speed has become the restriction factor in application of this technology.So based on the virtual instrument and the digital signal processing technology,combined with the custom of UHF agreement,a software instead of hardware is studied to realize the UHF RFID reading and writing systems,and automatic test of UHF RFID tag.The system realizes conformance testing of electronic tags by making software take place of hardware,and can carry on the measurement and analysis on a variety of macro parameters.Test results show that the system can overcome the limitation of a single standard,whether in the case of a single tag or tag,all can read and write very good simulation of modulation and demodulation,coding,decoding,cyclic redundancy check,the basic function such as logic control,has the advantage of low cost,high integration and good extensibility.Using time domain,frequency domain and joint time-frequency analysis method,this system can evaluate the performance of the electronic tag parameters such as the modulation depth,response time and the frequency band width,etc.

关 键 词：RFID 虚拟仪器技术 空间耦合 标签测试 

分 类 号：TP302[自动化与计算机技术—计算机系统结构] TP311[自动化与计算机技术—计算机科学与技术]