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When we go to a restaurant,too often encounter the number of peak period without the required position Arranging, this process is boring and a waste of time. e-paper ring is a flexible material the use of electronic paper can be turned into bracelet worn on the hand, thus eliminating the need to wait for the process of boring, people can bring wristbands do something else。On hand ring displays the current number and their number, there is expected to take the time to wait, the convenience of customers arrange this for some time. When the number when their turn will vibrate to remind the customer. It can be reused to avoid wasting papers.
Dalian Minzu University
Dalian Nationalities University