If you visit What is RFID you will see a basic introduction into the building blocks of an RFID system. But you may now want to know what this means as far as standards are concerned. The page on SC 31 shows all of the RF standards that SC 31 is working on. This includes RFID, RTLS (Real Time Locating Systems), and MIIM (Mobile Item Identification and Management) from both the hardware and data side. We will look at the RFID side to give examples of how the standards system works.
Going back to our three parts of an RFID system:
We need to see how these parts are covered by the standards.
The first thing that we have to consider is the tag and how it communicates with the reader. This is usually called the Air Interface standard. In RFID the main standard is ISO/IEC 18000 and its various parts. The standard is broken down by frequency to try to simplify the amount of information
Next we have to consider how the data is stored on the tag and how it is interpreted by the reader. This is where we look to:
Next we need to consider how we talk to the reader and pass the information into the system and infrastructure. The following standards cover this area:
There are many other standards that are being worked on by SC 31 but the above breakdown shows the various divisions from a system use point of view.
Finally the work of WG 7 is on File Management and Security. This group is defining the necessary steps to store more information on an RFID tag and how we implement a real security system that can help to protect that data.