| 摘要 |
An object of the present invention is to provide a remote server that can predict overheating of an engine. A remote server (5) receives an engine rotational speed (Ne), an engine load factor (L), and a cooling-water temperature (Tw). The remote server (5) calculates a moving average of the engine load factor (L) during a predetermine time, and calculates a correlation between the moving average of the engine load factor (L) and the cooling-water temperature (Tw). If the correlation during a predetermined period is in the status of a predetermined difference from the correlation up to the predetermined period, the remote server predicts occurrence of overheating in a swing working vehicle (3) that is used by a user. |
