| 摘要 |
PROBLEM TO BE SOLVED: To prevent the door of a game stand from being fraudulently opened and to prepare a record indicating who opens the door. SOLUTION: In a security system of a game hall, an RFID reader 16 is attached to the game stand, the ID of an assistant is read, and only in the case that it is the ID of a working assistant, the lock 18 of the doors 19a-19d is released. Also, the opening/closing time of the door and the ID of the assistant are stored. COPYRIGHT: (C)2007,JPO&INPIT
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