| 摘要 |
PROBLEM TO BE SOLVED: To provide a remote server capable of determining abnormality occurrence of a power transmission system without using a threshold in advance.SOLUTION: A remote server 5 receives utilization/non-utilization information, work day information, travel speed information and engine load rate information of work parts, from a combine 3. The remote server calculates an average value Lm of an engine load rate L when the all work parts are in a non-utilization state and equal to or more than predetermined travel speed Va for every predetermined period, and when the average value Lm in the predetermined period is in a predetermined different state to an average value LM until the predetermined period, it is determined that there is abnormality on a power transmission mechanism of a travel system of the combine 3. |
