| 摘要 |
PURPOSE: A control system of vending machine in guest rooms is provided, thereby automatically and exactly calculating the quantity and the cost of commodities consumed in each room. CONSTITUTION: The control system of vending machine in guest rooms consists of a data-handling device which perceives the data of the quantity of commodities consumed not by using money, a host computer which calculates their costs based on the data perceived from the data-handling device via wire or wireless system, and a signal-generating device which perceives information about the temperature of, commodities stored in and functions of the vending machines, sends information of their abnormality to the host computer, and handles it by the host computer. |
