| 摘要 |
<p>PROBLEM TO BE SOLVED: To enable a maintenance person to easily know whether or not the service life of parts has been expired and to execute a proper and speedy countermeasure by updating and storing the number of use times every use of the part and judging whether or not its use value reach a set value. SOLUTION: A storage medium 21 and a reading and writing circuit 22 are respectively provided in a reading head 5 and a writing head 6. Then whenever each of the reading head 5 and the writing head 6 is used, namely whenever the transportation of tickets at a transportation path 4 is detected by a train ticket detecting circuit 41, characteristic information and the number of use times are read from the storage medium 21 at each magnetic head and the number of use times is counted up by '1'. Then the number of use times is compared with a set value for judging the life of a magnetic head previously stored in RAM 33. When the number of use times is less than the set value, the counted-up number of use times is update-stored in the storage medium 21 at each magnetic head. When the number of use times amounts the set value, the fact is reported to a high-order monitoring panel control part 61 with characteristic information.</p> |
