| 摘要 |
In a conventional coin sorting device, sensor abnormalities tend to be overlooked as the reference value used to determine whether a coin introduced is good or bad is set by the introduction of a coin with the reference characteristics during an adjustment. In the present invention, a representative value common to a plurality of coin sorting devices of a similar type is used as the reference value. From the detection value and reference value of a coin that has been introduced into the coin sorting device, the constants of a linear regression formula related to both values are obtained and set during an adjustment. When the coins are sorted, the detection value of the coin being sorted is corrected by those constants and compared with the reference value or, in another embodiment, the sensor detection signals for the sorted coins are corrected to a value corresponding to the reference value relating to the linear formula by applying a constant in the second memory when the coins are sorted, and the peak value being derived and is used as the comparative detection value. Furthermore, a sensor abnormality can be identified by checking the aforementioned constants.
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