Yes. The last time this idea came around, RFID tags that could be read in bulk without interference cost about a dollar. Now they're US$0.04, says the article.
Each RFID tag needs to be queried separately. If two of them send at the same time, neither gets received. So there's a recent and clever polling scheme which sends polls to which only certain tags reply, and tags also reply in multiple time slots chosen semi-randomly. It's a cross between two old ideas - slotted ALOHA, and the scheme used to make plug-and-play work for ISA cards.
This is what allows just dumping all the stuff into a box and scanning all the tags at once.
Uniqlo sells mostly Uniqlo stuff, so they have control over tagging. Also, clothing tends to be RF-transparent. If you're selling canned goods, this might not work.
Each RFID tag needs to be queried separately. If two of them send at the same time, neither gets received. So there's a recent and clever polling scheme which sends polls to which only certain tags reply, and tags also reply in multiple time slots chosen semi-randomly. It's a cross between two old ideas - slotted ALOHA, and the scheme used to make plug-and-play work for ISA cards.
This is what allows just dumping all the stuff into a box and scanning all the tags at once.
Uniqlo sells mostly Uniqlo stuff, so they have control over tagging. Also, clothing tends to be RF-transparent. If you're selling canned goods, this might not work.
[1] https://www.hindawi.com/journals/wcmc/2021/9967739/