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RFID technical upgrades

It seems that the simple RFID tag which is used to track items around is being given a computational upgrade.  Read here.

The normal RDID tags simply respond to a transmission with a unique id. The transmission powers the tag and allows it to respond with its id.

The newer version is going to have a bit of computational power, some memory and a capacitor to give the tag time to process the data.   So the reader sends the signal, this charges the capacitor and starts the tag processing.    It then sends a calculated response, not necessarily an id, to the reader.

Only thing is I just don’t see a real use for it besides surveillance.  All I can see it being used for is to provide waypoints for the last X number of reads.   So the transmitter sends co-ords or a unique id and it responds with all the co-ords or ids in its memory.  So when you get to Heathrow they can see exactly where you went while you were out of the country.

Ideal for any totalitarian government and I’m now thinking that is all of them.