| 摘要 |
PROBLEM TO BE SOLVED: To provide a door open detecting system which can detect door open condition and make hall staff recognize it certainly even outside hours of the hall by using an uninterruptible power system. SOLUTION: A plurality of game machines which are arranged in islands of a hall and respectively have door open detecting means, uninterruptible power systems which apply power to each of the game machines, a hall computer into which information on each of the game machines is input and a security box which is connected so that power can be always supplied from the uninterruptible power system and the door information detected by the door open detecting means of each game machines can be transmitted to the hall computer are equipped. The hall computer has a control device and an information monitoring device with a memorizing means which can memorize the door information. COPYRIGHT: (C)2010,JPO&INPIT
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