| 摘要 |
<p>A controller (2) is provided to a hydraulic shovel (1) operated on the market. The operation hours of the engine (32), front (15), pivot cab (13), and traveling gear (12) are measured. The data is stored in a memory of the controller (2), transferred to a base station computer (3) through satellite communication or an FD, and stored in a database (100) of the base station computer (3). The base station computer (3) reads data stored in the database (100) for each hydraulic shovel, calculates an index (e.g., traveling rate) concerning the used state of a specific hydraulic shovel and the distribution of the number of in-operation work machines with respect to the index of another hydraulic shovel of the same model as that of the specific hydraulic shovel, compares them, and judges if the specific hydraulic shovel is of a most suitable model. In such a way, the maker of the hydraulic machines can grasp and evaluate how users actually use the purchased hydraulic machines and advise a most suitable model depending on the used state to the customer.</p> |
