| 摘要 |
PROBLEM TO BE SOLVED: To precisely predict sales and roughly calculated profits (a rate of the number of output balls to that of hit balls) after a prescribed times using only game information of the day. SOLUTION: This game hall management device 30 collects out information, safe information, big win information, ball lending information from a plurality of game machines 10 and ball lending machines 20 installed in a game hall, and predicts the sales and the roughly calculated profits based on the game information. The game hall management device 30 judges a game machine in an operating state based on the out information and/or the safe information, judges an operating game machine in a ball-lending game state based on the ball lending information and/or the big win information, judges an operating game machine in a held ball game state based on the ball lending information and/or the big win information, calculates predicted sales after a prescribed time at a ball-lending game stand, and calculates predicted sales after the prescribed time at a held ball game stand. COPYRIGHT: (C)2007,JPO&INPIT
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