| 摘要 |
<p>An operating system of construction machinery capable of giving advice on efficient operation to an operator, wherein specified state values on the operating state of the construction machinery, for example, hydraulic pressures or engine rotational speeds are detected (S101), and the frequency distribution of the state values for each specified time interval is calculated (S102). The variable range of the state values is classified into multiple zones beforehand, and different set target values are pre-set for these zones. For each zone, the frequency distribution is compared with the set target value (S104, 106, 108, 110, 112), and according to the results of comparison for each zone, an applicable message is selected from specified messages and outputted (S105, 107, 109, 111, 113). The output message may be selected according to the combination of the results of comparison of the multiple state values such as the hydraulic pressures and engine rotational speeds.</p> |
