To provide a life prediction method such as easy and accurate prediction of the durable life in a replaceable game device loaded on a game machine.
In reels 10a, 10b and 10c provided in a slot machine 1 and rotationally driven by a stepping motor 102, a rotating acceleration sensor 120 is installed matched with the rotational center axis of the reels. A life diagnostic means samples the transient response of the acceleration of the reels responding to drive pulse signals outputted to the stepping motor using the rotating acceleration sensor, and obtains a difference ad from the reference characteristic as of the acceleration stored beforehand. Then, when the integrated value of the obtained difference reaches a prescribed value or more, it is determined that the exhaustion of the life of the reel device is close.
HORIE NORIO
SUZUKI YOSHICHIRO
| JP2004033257A | 2004-02-05 | |||
| JP2003074478A | 2003-03-12 | |||
| JP2003232705A | 2003-08-22 |