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This design which applies to all the major supermarkets is a rapid checkout machines.Enter the supermarket, when scanned at the gate of this supermarket product information, then select articles about such things when the scanning information is temporary in the machine, If you need to back into something and then scan again be able to cancellation of the purchase,and so on,when checkout, the only thing you need to do is to click machine at the counter. The machine has a chip and the information associated with your personal account. Finally, scan fingerprints so as to checkout, truly safe speediness straight [Triple S] shopping mode.
Yibin Qi,Shaochen Li,Kun Li