tailieunhanh - RFID Handbook Fundamentals and Applications in Contactless Smart Cards and Identification

Tham khảo sách 'rfid handbook fundamentals and applications in contactless smart cards and identification', kỹ thuật - công nghệ, điện - điện tử phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | RFID Handbook Fundamentals and Applications in Contactless Smart Cards and Identification 1 RFID Handbook Fundamentals and Applications in Contactless Smart Cards and Identification Second Edition Klaus Finkenzeller Copyright 2003 John Wiley Sons Ltd. ISBN 0-470-84402-7 Introduction In recent years automatic identification procedures Auto-ID have become very popular in many service industries purchasing and distribution logistics industry manufacturing companies and material flow systems. Automatic identification procedures exist to provide information about people animals goods and products in transit. The omnipresent barcode labels that triggered a revolution in identification systems some considerable time ago are being found to be inadequate in an increasing number of cases. Barcodes may be extremely cheap but their stumbling block is their low storage capacity and the fact that they cannot be reprogrammed. The technically optimal solution would be the storage of data in a silicon chip. The most common form of electronic data-carrying device in use in everyday life is the smart card based upon a contact field telephone smart card bank cards . However the mechanical contact used in the smart card is often impractical. A contactless transfer of data between the data-carrying device and its reader is far more flexible. In the ideal case the power required to operate the electronic data-carrying device would also be transferred from the reader using contactless technology. Because of the procedures used for the transfer of power and data contactless ID systems are called RFID systems Radio Frequency Identification . The number of companies actively involved in the development and sale of RFID systems indicates that this is a market that should be taken seriously. Whereas global sales of RFID systems were approximately 900 million US in the year 2000 it is estimated that this figure will reach 2650 million US in 2005 Krebs . . The RFID market therefore belongs to