| 摘要 |
PURPOSE: A system is provided to supply drinking water for free by using mileage points obtained on-line. CONSTITUTION: A central server(800) transfers mileage points of a member to a client(700) by detecting a member database(810). The client temporarily stores the transferred mileage points. The member receives drinking water or a beverage from a beverage vending machine(100) for free or at a cheap price. The client subtracts the mileage points for the price of the beverage. The subtracted mileage points are transferred to the central server through a network connector of the client. The central server stores the subtracted mileage points in the member database. |
