| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem that there is no such a prepaid card to use facilities and so on, by which a visible image is acquired to make it possible to check the remaining value and useful information on, for example, the congestion state of facilities with the naked eye. SOLUTION: A facility use state display device has a device issuing a reversible recording medium having information which can be updated and can not be discriminated with the naked eye and image information which can be discriminated with the naked eye to a facility user in the form of a prepaid card, respective reader writers which decode and rewrite the image information, an individual monitor means which is connected thereto, a checkout means which decodes the remaining value recorded on the prepaid card and pays out the cash corresponding to the remaining value, a host computer, and a communication network which connects the host computer and respective readers, and the individual monitor screen displays reference information which is useful for individual facility uses. |
