| 摘要 |
PROBLEM TO BE SOLVED: To provide a lottery enjoyed by a plurality of people.SOLUTION: A control unit of a digital signage device obtains, by a non-contact communication unit, specific card identification information from an IC card specifically allocated to each of a plurality of participants capable of participating a lottery together S9, and holds a draw for each of the plurality of participants of which the card identification information is obtained. Then, on the basis of the results of the draw for each of the participants, the control unit determines winning or losing of the whole participants S14. |
