| 摘要 |
PROBLEM TO BE SOLVED: To provide a game machine capable of optimally suppressing a fraud using a magnet or the like.SOLUTION: When door opening/closing detection means detects that a door body is changed from an open state to a closed state with respect to a body, or from the closed state to the open state with respect to the body, setup means sets a prescribed value for calibration, so that, each time an opening/closing state of the door body is changed, a proper prescribed value for calibration is set to a magnetic field at that time. This configuration can inhibit an improper prescribed value for calibration from being used for the calibration by the calibration means so as to prevent that a fraudulently applied magnetic field is not detected by the magnetic field detection means, thereby optimally inhibiting a fraud using a magnet.SELECTED DRAWING: Figure 20 |
