| 摘要 |
<p>An electronic control system of construction machinery formed by adding a monitoring function to a system having a control function, capable of suppressing an increase in data communication amount and communication frequency on a common communication line, preventing control data and monitoring data from being interfered with each other, and flexibly coping with the addition of a function, wherein a first control unit (17) for a motor (14), a second control unit (23) for a hydraulic pump (18), a third control unit (33) for control valves (24, 25, 26), and first and second monitor units (45, 46) are installed on a hydraulic shovel (1), a first common communication line (39) for control and a second common communication line (40) for monitoring are installed as a common bus for data communication, the control units (17, 23, 33) are connected to each other through the first common communication line (39) and mutually send and receive the signals necessary for control, and the monitor units (45, 46) and the first control unit (17) are connected to each other through the second common communication line (40) and mutually send and receive the signals necessary for the monitoring.</p> |
