ISO/IEC 18000-7 defines the air interface protocol for Radio-Frequency Identification (RFID) devices operating as an active RF Tag in the 433 MHz band used in item management applications. Its purpose is to provide a common technical specification for RFID devices that may be used for developing RFID applications.

ISO/IEC 18000-7 RFID standard is intended to allow for compatibility and to encourage inter-operability of products for the growing RFID market in the international marketplace. ISO/IEC 18000-7:2004 defines the forward and return link parameters for technical attributes including, but not limited to, operating frequency, operating channel accuracy, occupied channel bandwidth, maximum power, spurious emissions, modulation, duty cycle, data coding, bit rate, bit rate accuracy, bit transmission order, and where appropriate operating channels, frequency hop rate, hop sequence, spreading sequence, and chip rate. ISO/IEC 18000-7:2004 further defines the communications protocol used in the air interface.

ISO 18000-7 RFID Technology Advantages

  • This standard was specifically designed for RFID systems.
  • Since the operating frequency is 433 MHz, this technology has no problems in co-existing with any of the popular wireless technologies such as Bluetooth, WLAN, cordless phones and microwave ovens.
  • Based on international frequency regulations, 433 MHz offers the broadest acceptance for Active RFID.
  • Good propagation characteristics in crowded environments as signals can move around obstructions by means of diffraction.
  • Long communication range – approximately 100 metres.
  • Low power operation – approximately 20 mW

ISO 18000-7 RFID Technology Disadvantages

  • Compliance with this standard involves the use of four related patents. The licensing terms are not readily available.
  • No specific support for dense reader mode (multiple readers operating in close vicinity).
  • No built-in support for reader-to-reader communications.
  • Susceptible to interference since narrowband signals are used.
  • No built-in support for security mechanisms such as encryption or authentication.
  • Relatively low data rate – approximately 28 Kbps.