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

Ask The Experts Forum

BlogsAsk The Experts ForumCan Tags Be Programmed Not to Respond?

Can Tags Be Programmed Not to Respond?

Posted By RFID Journal, 07.29.2009
I would like to know if there are tags that can be configured to not be seen by an RFID reader if the tags' user does not want them to be read, even if they are within a read zone. Thank you.

—Preda Radu

Dear Preda,

Tags and interrogators currently on the market communicate using a wide variety of air-interface protocols—the systems that govern how they communicate back and forth with one another. Tags that conform to EPCglobal's ultrahigh-frequency (UHF) Gen 2 air-interface protocol standard can be killed. That is, they can be programmed to never respond again to a reader.

I think your question implies that a user would like the tags to respond to his/her commands, but to no one else's. I am not aware of any protocols that would allow for this scenario. Certainly, you can lock user memory so that the tag would respond, but not allow you to read memory that has been locked. However, all tags respond to interrogators using the same standardized protocol.

In general, I think it would be bad if a tag did not respond at all, because then tags could be placed on objects or individuals, enabling others to track them without their knowledge. One privacy safeguard is that a tag can always be discovered if it is embedded in an object. (I'm referring here to commercially available tags. Who knows what spy agencies around the world might have developed?)

RFID Journal's readers have insights into tags that can be programmed not to respond.

—Mark Roberti, 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
Which RFID Vendors Provide IT Asset-Mana...
Previous Post
How Can RFID Help Track Purchased Produc...
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
© Copyright 2002-2016 RFID Journal LLC.
Powered By: Haycco