[LINK] Simple animation about RFID tags
Richard.Chirgwin at informa.com.au
Wed Feb 25 14:59:26 EST 2004
> Jeff, Link,
> are the E-tags on Sydney and Melbourne motorways in fact RFID tags?
RF? I guess so, since I don't see any wires.
ID? Yes, since they identify who's paid.
A mobile phone fits the definition too; which is an analyst's answer, since
by including anything you like you can claim very fast growth for a market!
> if so, does this mean we'll be able to stick a credit card on the
> dashboard when driving on those motorways,
I would rather not. Separating card user from the transaction was the first
step away from security...
>or use drivethrough
> shopping pickup and pay with the eway toll tag?
That's an interested swap in the other direction ... but perhaps I'd rather
do mobile phone payment at the supermarket; because the phone is relatively
secure, and relatively closely associated with the user. Do motorway tags
have IEMI numbers for lost-or-stolen tag cancellation?
> Maybe these are silly examples, but I am wondering how far it
> might go......
> Hey! those RFID tags in the animation look just like the ones I've
> recently peeled from the back of DVDs at a large retail outlet - are
> those tage just security tags or is RFID technology already here and
> used on a widespread basis?
Yes; but most of the tags currently in use are "security" tags rather than
item identifier tags; but both are RFID of a kind.
As I think I noted in another RFID discussion, the important differences are
permission and awareness.
If I am switching on the mobile phone, I am aware that it's a radio
transmitter; and I give the network permission to find my phone.
If I buy a motorway tag, I am aware that it's a radio device of some kind;
and I give the more limited permission of allowing it to speak to a toll
On a rented DVD, the tag >and< the DVD are the property of the shop. Since I
return the DVD, I have a brief relationship with it - there's no real
A smaller tag, hidden on a shirt, is a different critter. There's no
awareness, therefore no permission. It is dishonest, deceptive, and
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