| RFID is an automation identify technology which rised in 1990s'and is maturing gradually.It makes use of radio signal to transfer information contactless by space coupling, so it canidentify some information.RFID have became prevalent in many domains such as finance, telecom, traffic, medicaltreatment, intelligent building and so on. Owing to its incomparable advantages with contact ICcard, contactless IC card has been expanded in recent years. Now we mainly research the RFIDapplied in medical treatment. Based on the analysis of current research and development ofcontactless IC card and its reader/writer, we choose philips'mifare 1 card and RC500 module toempolder the card reader , which accord with ISO14443A criterion. The card reader will apply in532nm green laser OPS. treatment.The main work of this dissertation is as follows:1.Based on the analysis of the operation principle of the inductance coupling radiofrequency intelligent card and its reader/writer, radio frequency interface circuit is designed byusing RC500 chip. Via this radio frequency interface, the radio frequency intelligent card ispowered by card reader/writer and exchanges data with card reader/writer.2.Following modular system software design method. In software design chapters,discussing the design and realization of communication protocol, the functions of the varioussoftware modules, design problems, solutions, and so on.3.readers-communication software is compiled by C51 language, PC communicationsoftware is compiled by VB and VC++, Design and development data communications readersCommunication Interface with PC, realize the communication by using RS232, so the systemcan communicate well.This article bring forward the resolvent of contactless indentify on RFID wireless transfermodule.Radio frequency interface,communication protocol and software,hardware modular runwell. Integrate project,run reliably,applied technic,the project which tested by pratice satisfysthe demand of design. |
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