| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a farm machine that can exactly and efficiently manage the operation time and the operation frequency of individual working machines and adequately judge the check timing for individual working machines and the timing for part replacement. <P>SOLUTION: In a tractor wherein a variety of working machines 3 are set to the travelling machine body 1, an IC tag 8 that is freely readable and writable is set on the working machine, while an IC tag reader and writer 9 and a controlling device 13 are set to the travelling machine body 1 and the operation time of the working machine 3 measured by the controlling device 13 is written to the IC tag 8 via the IC tag reader and writer 9. <P>COPYRIGHT: (C)2007,JPO&INPIT |
