| 摘要 |
PURPOSE:To cope with an unfair deed quickly by operating a recording means to record pictures of a television camera which monitors the input of objects to be counted, when an abnormal counting is judged for a counting machine to count objects to be counted such as pinballs, etc., being input in a hopper. CONSTITUTION:When pinballs are input in a hopper 2, the balls drop on a rail, and the number of the input balls are counted by an infrared ray sensor when the balls flow down along the rail, and the result of the counting is displayed on a liquid crystal display unit 34. For such a counting device, when an electric wave is emitted to the counting device, the electronic control circuit generates an erroneous operation by the electric wave, and a counting result which is higher than the number of pinballs being input in the hopper 2 may be output. In order to prevent such an unfair deed from happening, an antenna 28 to detects an abnormal electric wave is provided, and an judgement of the abnormality is performed by the output of an electric wave sensing circuit which is connected to the antenna 28. Then, when an abnormality is judged, pictures of a television camera 30 are recorded by a recording means, and the pictures are used to identify the person who inputs the pinballs. |
