Title :
Design of UHF RFID Reader Based on Embedded Linux
Author :
Song, Jin-Min ; Wang, Guang-Bin ; Xiao, Bi-Cheng
Author_Institution :
Sch. of Control & Comput. Eng., North China Electr. Power Univ., Beijing, China
Abstract :
This paper proposed a complete solution of UHF RFID reader system based on S3C2440 microprocessor and AS3992 UHF Reader chip. By designing the automatic gain control(AGC) circuit and the antenna impedance automatic matching circuit, the transmit power is up to 33dBm and the receiver SNR is improved at the same time. The reader system is transplanted into the embedded Linux OS which greatly facilitates the system development and maintenance. Practice shows the RFID reader implemented in this paper has achieved high-speed identification of ISO18000-6C RFID tags and stable reading range up to 10 meters.
Keywords :
Linux; UHF antennas; UHF integrated circuits; automatic gain control; embedded systems; impedance matching; integrated circuit design; microprocessor chips; radio receivers; radiofrequency identification; AGC circuit design; AS3992 UHF reader chip; S3C2440 microprocessor chip; UHF RFID reader design; antenna impedance automatic matching circuit; automatic gain control circuit design; embedded Linux OS; high-speed ISO18000-6C RFID tag identification; radiofrequency identification; receiver SNR; system development; system maintenance; Antenna measurements; Hardware; Impedance; Linux; Power measurement; Radio frequency; Radiofrequency identification; AS3992; Automatic Gain Control; Embedded Linux; Impedance Matching; Reader; UHF RFID;
Conference_Titel :
Computational and Information Sciences (ICCIS), 2012 Fourth International Conference on
Conference_Location :
Chongqing
Print_ISBN :
978-1-4673-2406-9
DOI :
10.1109/ICCIS.2012.126
