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A Design of 915MHz UHF RFID Reader

Author: LuLiangLiang
Tutor: WangZhongYong
School: Zhengzhou University
Course: Circuits and Systems
Keywords: RFID ISO/IEC18000-6 Label UHF Reader FPGA DSP
CLC: TP391.44
Type: Master's thesis
Year: 2011
Downloads: 157
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Abstract


RFID technology as one of the most development potential of the technology of the 21st century, has had a tremendous impact on people's production and social life. The use of RFID technology in the 2008 Olympic Games, the 2009 National Games in Jinan, the 2010 Shanghai World Expo and the 2010 Asian Games in Guangzhou. And RFID technology in the wisdom of the earth, and the city of wisdom, intelligence, logistics, and material network construction and development process will play a major role. In the 860-960MHz UHF (UHF) radio frequency identification system with low-band radio frequency identification system has read distance, speed, etc., become the hotspot of the international development of RFID technology. UHF RFID reader UHF RFID technology, critical infrastructure, but the reason for the lack of domestic RFID technology late start and slow development of integrated IC technology with independent intellectual property rights of UHF RFID reader. UHF reader technology can contribute to the upgrade of the independent intellectual property rights of RFID technology and RFID integrated IC technology, while helping our country to participate in the formulation of the industry standard. In response to these issues, this topic the typical UHF high frequency of international standards ISO / IEC 18000-6 and EPC Class 1 generation 2 UHF RFID reader able to adapt to a universal communication chip design. First, the paper discusses the status and trends of the development of RFID technology at home and abroad, focusing on analysis of the physical interface and the communication of the ISO / IEC 18000-6 UHF protocol; Secondly, the control circuit digital baseband and RF analog circuit structural analysis is completed and design; once again on the protocol command in the the reader system software design process, anti-collision algorithm implementation methods and FPGA system control timing control and data acquisition system of the reader interface design, CRC check and codec function of the realization, finally, gives the reader the process of debugging and test results on three different UHF RF card reader comply with UHF identification protocol, after the analysis of the design of the reader read range, power, technology index requirements. In the design of the control part of the digital baseband using a combination of low-power DSP and FPGA architecture, protocol command processing in the DSP chip, anti-collision algorithm, system control can improve the execution speed of the algorithm, implemented in the FPGA chip codec and interface control can bring a great deal of flexibility for future upgrades, while contributing to the integration of RFID IC technology.

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CLC: > Industrial Technology > Automation technology,computer technology > Computing technology,computer technology > Computer applications > Information processing (information processing) > Pattern Recognition and devices > Optical pattern recognition devices
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