RFID: UHF - Big Brother's Big Brother
If you haven't yet set a place at your mental table for track and trace technology, that's OK. You're going to need a whole separate table.
The EPC Global Community's latest RFID evolution is the UHF RFID tag. Meet Generation 2.
RFID's new fair-haired boy is bigger and faster than the now-familiar HF RFID technology (which is bigger and faster than the original LF RFID).
Generation 2 UHF tags offer data read rates of up to 640 kbits and 256 bit EPCs (Electronic Product Codes). Compare that to traditional HF tags with max read rates of 149 kbits and 96 bit EPC, and you may understand why some industries (including retail, pharmaceutical, Department of Defense, Homeland Security) are excited about UHF RFID.
And if you do understand, can you explain it to me? I'm not convinced that my grocery store or my pharmacy or my local schools need track and trace technology at all. I'm certainly not convinced that they need turbo track and trace.
Wal-Mart representatives repeatedly and publicly insist that the retail giant is going to use RFID simply to streamline inventory and supply chain operations.
No one needs a 256 bit EPC to do that.
Sally Bacchetta - Freelance Writer