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

fYear

2012

fDate

17-19 Aug. 2012

Firstpage

1001

Lastpage

1004

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Computational and Information Sciences (ICCIS), 2012 Fourth International Conference on

Conference_Location

Chongqing

Print_ISBN

978-1-4673-2406-9

Type

conf

DOI

10.1109/ICCIS.2012.126

Filename

6300783