On Sun, 2006-12-10 at 00:44 -0800, Jason wrote: > From: "Herbert Graf" > Sent: Saturday, December 09, 2006 10:03 PM > > > As for the weigh scale, that was just a suggestion. Another technique > > perhaps is to put an RFID scanner and scale in the cart. The RFID > > scanner continuously scans the basket, if there is a change in weight > > and no change in the RFID inventory the cart will tag itself as > > "problem" and signal the self check-out terminal that a manual check > > should happen. > > Put 2 items in the cart at the same time, one with a destroyed tag. Which would fail since the cart would detect the RFID tag of the first item, note it's weight, and then determine the actual increase in weight doesn't match. > I understand what you're trying to say, my point is just that there's so > many loopholes in the system, and no real advantage. Checking out in 5 seconds vs. 10 minutes? HUGE advantage IMHO. TTYL -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist