Design Of The Radio Frequency Identification Reader On The MF RC500

Radio Frequency Identification (RFID) is one technology of automatic Identification, which is used with the coupling of radio magnetic field to realize contactless communication and identify the items.The radio frequency card reader is the important device of the radio frequency application system. The paper introduces the design of The radio frequency card reader based on MF RC500 radio frequency station chip and AT89S52 MCU and its remodulation with the carrier of 13. 56MHz. After referring to quantities of technical books researches in RFID's development around the world and the facts from our staff room, the author puts forward an idea to design radio frequency card reader.In the paper, the background and significance about designing a RFID application system is firstly introduced. Then the whole design idea of the controller is elaborated emphatically, followed by an introduction to the radio frequency card reader protocol. The design and realization of the RFID reader based on software and hardware are also described in details.The hardware design mainly includes MCU control module design, radio frequency module design, communication module design, and antenna module design, etc. The software design covers the basic operation program design of the radio, the design of the radio frequency station chip RC500 design concerning the radio frequency card and the communication program reader and the master computer, etc.After completing the design and test board of radio frequency card reader, the author summaries the findings and gives suggestions for further scientific researches.