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http://dx.doi.org/10.5302/J.ICROS.2007.13.9.915

Development of High-Speed RFID Reader System  

Shin, Jae-Ho (인천대학교 전자공학과)
Hong, Yeon-Chan (인천대학교 전자공학과)
Publication Information
Journal of Institute of Control, Robotics and Systems / v.13, no.9, 2007 , pp. 915-919 More about this Journal
Abstract
This paper proposed a transponder detection method to reduce recognition time in RFID system. It's also shown that conventional procedure of communication in the system could cause a waste of time when a reader recognizes a transponder. The reduction of recognition time can be obtained by developing a circuit to detect a transponder actively. Detecting a transponder is achieved by using the voltage variation of reader antenna voltage that happens when a transponder approaches to the vicinity of magnetic field formed by the reader. By adding a comparator to the antenna receiver of a reader, the reader can perceive approach or existence of a transponder. A reader for experiment is made using the MFRC500 by Phillips that supports ISO/IEC 14443 protocol. Comparing the proposed method with the conventional methods by experiment, there are 47.5ms reduction of recognition time maximally and 12ms in average.
Keywords
transponder; recognition time; magnetic field;
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  • Reference
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