作者：朱智源, 赵健, 任禾
作者单位：中国科学院自动化研究所综合信息系统研究中心, 北京 100190
关键词：电子技术; 优选位置; 自动测试; 射频识别; 读取率; 标签
摘要：
针对目前的RFID系统性能优化问题,提出了一种确定标签优选位置的测试方法,通过这种方式来优化被动式超高频RFID系统的应用性能。首先搭建了较为理想的测试环境,然后改变标签在货箱上的贴附位置,并对每一个贴附位置沿固定方向改变货箱与天线的相对距离,接着对每一个距离测试标签的读取率。通过这种实验方法,来研究标签不同的贴附位置的读取率随着货箱与天线之间距离的变化规律,进而得出一个确定RFID标签优选位置的一般性结论。该方法操作简单,实用性强,可以为RFID系统的优化提供指导性建议。
Method for determining preferred location of passive UHF RFID tags
ZHU Zhi-yuan, ZHAO Jian, REN He
Integrated Information Systems Research Center, Institute of Automation, Chinese Academy of Sciences, Beijing 100190, China
Abstract: For performance optimization of a passive UHF RFID system, a test method that optimizes tag position is proposed. Firstly, a relative more ideal test environment has been built. And then, for each tag position attached on the container, change the distance between the container and the antenna along a fixed direction. After that, for each distance, test label read rates. In this way, the authors have studied the read rate trend with the change of distance between the antenna and container. And thus come to general conclusions to determine preferred locations of RFID tags. The experiment results show the method is easy and practical, and can provide good advices for deploying RFID systems.
Keywords: Technology of electronics; Preferred location; Automatic test; RFID; Read rate; Tag
2010, 36(3): 66-69 收稿日期: 2009-12-14;收到修改稿日期: 2010-2-6
基金项目: 国家自然科学基金项目(U0935002/L05);国家863计划项目(2006AA04A105)
作者简介: 朱智源(1985-),男,硕士研究生,专业方向为RIFD性能测试。
参考文献
[1] Mcelroy D, Turban E. Using smart cards in electronic commerce[J]. International Journal of Information Management,1998,18(1):61-72.
[2] Hodges S T A,Mallinson H, Floerkemeier C. Assessing and optimizing the range of uhf rfid to enable real-world pervasive computing applications[R]. Paper Presented at: Lecture Notes in Computer Science,2007.
[3] 泰 克. 使用实时频谱分析评估和优化射频识别(RFID)系统[J]. 电子与电脑,2007(6):85-88.
[4] Clarke R T D, Tazelaar J R, Boyer K K. Radio frequency identification(RFID) performance: the effect of tag orientation and package contents[J]. Packaging Technology and Science,2006,19(1):45-54.
[5] Aroor S, Deavours D. Evaluation of the state of passive UHF RFID:An experimental approach[J]. IEEE Systems Journal,2007,1(2):168-176.
[6] Kim D I, Smith M A. Measurements of small-scale fading and path loss for long range RF tags[J]. IEEE Transactions on Antennas and Propagation,2003,51(8):1 740-1 749.
[7] Parker L. 复杂RF 环境下的RFID测试挑战[J]. 电子产品世界,2009,16(6):21-23.
[8] 张贵艳,张明扬. 远距离RFID读写天线的研究[J]. 电子设计工程,2009,17(10):18-19.
[9] 潘仲英. 电磁波、天线与电波传播[M]. 北京:机械工业出版社,1986.
[10] 张碧军. 空时编码及相关技术研究[M]. 武汉:华中科技大学,2006.
[11] 白承森,马志新. 如何提高RFID系统数据读取率[J]. 微计算机信息,2009(11):246-247.
