Home Internet of Things Aerospace Apparel Energy Defense Health Care Logistics Manufacturing Retail

Ask The Experts Forum

BlogsAsk The Experts ForumAre Time Slots the Only Way to Communicate With RFID Tags?

Are Time Slots the Only Way to Communicate With RFID Tags?

Posted By RFID Journal, 11.17.2015

Is it possible to read Gen 2 RFID tags with a deterministic method—i.e., having all tags with a number greater than 10110 respond?

—Name withheld


To answer your question, I reached to Steve Halliday, the president of both High Tech Aid and RAIN RFID, and an expert on RFID technology and standards. Here is his response:

"The 18000-63 air-interface supports the select command. This command allows a user to select which tags will be allowed to report in the subsequent inventory round. The select command has several parameters associated with it, dictating how the various flags will be set, and what the selection criteria might be. One of the options is to select the UII memory, then set a pointer, length and mask. The pointer may be set to the start of the sequential number with a length equal to the number of bits up to the highest tag ID. If the value was then set to 0, then only those tags with a number equal or less than the highest ID (10110) would be selected. During the subsequent inventory round, these are the only tags that would reply. This is described in section of the ISO/IEC 18000-63 standard."

—Mark Roberti, Founder and Editor, RFID Journal

Login and post your comment!

Not a member?

Signup for an account now to access all of the features of RFIDJournal.com!

Next Post
Where Can I Find an RFID Device to Meet ...
Previous Post
What Is the Most Important Comparison Be...
Case Studies Features Best Practices How-Tos
Live Events Virtual Events Webinars
Simply enter a question for our experts.
RFID Journal LIVE! RFID in Health Care LIVE! LatAm LIVE! Brasil LIVE! Europe RFID Connect Virtual Events RFID Journal Awards Webinars Presentations