26690-3

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26690-3 is a standard developed by International Electrotechnical Commission (IEC) and its purpose is to provide guidance on the application field and working principle of radio frequency identification (RFID) systems. It is applied to both active and passive RFID tags. The purpose of 26690-3 is to ensure interoperability of RFID systems used in global systems, and to reduce potential conflicts between different RFID systems.

In general, 26690-3 defines the types of tags and their working range, as well as the way in which information is exchanged between a transceiver and the tag. It also defines the types of readers and antennas used to communicate with the tags, the type of data exchange, and the protocols for data transfer. The standard also requires the implementation of security measures to ensure that the data transmitted between the tag and transceiver is secure and confidential.

In regard to application field, 26690-3 is applied to the positioning, tracking and identification of objects and people in industrial and commercial applications such as security, logistic tracking, access control, asset management, storage identification and inventory control.

The general working principle of 26690-3 is as follows:

The RFID transceiver is placed at a strategic point such as a door entrance or an inventory management station. When the RFID tag comes within the working range of the transceiver, an electromagnetic wave is received and forwarded to the tag. The RFID tag then transmits an electromagnetic wave carrying the relevant information. This information is detected and received by the transceiver, which interprets the payload and acts accordingly.

In terms of data transmission protocol, 26690-3 defines two types: the base protocol and the data protocol. The base protocol is used to send general purpose information between the transceiver and the tag. This includes the serial number, power source type and the working range of the tag. The data protocol, on the other hand, is designed to transmit application-specific information between the tag and the transceiver. Examples of this type of information include the name of the user, the item being identified, and the date and time of the transaction.

The security protocols described in 26690-3 are important to ensure that the data transmission is secure and confidential. This includes protocols such as hardware encryption, challenge-response systems and PIN/password authentication systems. These mechanisms are used to ensure that only authorized users can access the information stored on the tag.

RFID technology has many applications, and the standards developed by IEC are used to ensure interoperability between different systems. 26690-3 defines the application field and working principles of RFID technology, and is essential for the proper functioning of these systems.

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