| 摘要 |
PROBLEM TO BE SOLVED: To provide a drink order system by which an order for drink can be placed even when a store is crowded. SOLUTION: The drink order system 2 has first to eighth coasters 8 to 15 and an order display device 6. The first coaster 8 includes first to third pressure sensitive sensors, first to third contact determination circuits which determine whether or not contact is made on the basis of resistance signals input from the first to third pressure sensitive sensors and output contact detection signals, a central control circuit which determines whether or not the opening edge of a jug is in contact with the upper face of a coaster on the basis of the contact detection signals from the first to third contact determination circuits, and the like. When the upper face of a coaster is in contact with the opening edge of a jug, an order signal is input into the order display device by radio communication, and the order is displayed on a display part 6a provided on the order display device. COPYRIGHT: (C)2005,JPO&NCIPI
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