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  • What is RFID ?
  • Wireless communication and
          the air interface
  • Carrier frequencies
  • Data transfer rate and bandwidth
  • Range and Power Levels
  • RFID System Components
  • Transponders/Tags
  • Basic features of an RFID transponder
  • The Reader/Interrogator
  • RF Transponder Programmers
  • RFID System Categories
  • Areas of Application for RFID
  • Standardisation
    		•
    Standardisation

    If the unique advantages and flexibility of RFID is the good news, then the proliferation of incompatible RFID standards is the corresponding bad news. All major RFID vendors offer proprietary systems, with the result that various applications and industries have standardized on different vendors' competing frequencies and protocols. The current state of RFID standards is severe disarray - standards based on incompatible RFID systems exist for rail, truck, air traffic control, and tolling authority usage. The US Intelligent Transportation System and the US Department of Defense (DOD) Total Asset Visibility system are among other special-interest applications.

    The lack of open systems interchangeability has severely crippled RFID industry growth as a whole, and the resultant technology price reductions that come with broad-based inter-industry use. However, a number of organizations have been working to address and hopefully bring about some commonality among competing RFID systems, both in the U.S. and in Europe where RFID has made greater market inroads. Meanwhile in the U.S.A., ANSI's X3T6 group, comprising major RFID manufacturers and users, is currently developing a draft document based systems' operation at a carrier frequency of 2.45 GHz, which it is seeking to have adopted by ISO. ISO has already adopted international RFID standards for animal tracking, ISO 11784 and 11785.

    Just as standardisation enabled the tremendous growth and widespread use of bar code, cooperation among RFID manufacturers will be necessary for promoting the technology developments and refinements that will enable broad-based application growth.