| 摘要 |
PURPOSE:To automate the designated-position-keeping-work, by calculating the cable drawing-out/rewinding length, which is necessary to put a floating body back to the designated position, and using the signals from a cable length meter, thereby controlling the start/stop operation of winch. CONSTITUTION:Based on the floating body position, which is continuously measured by a floating body position measuring device 1, the coordinates of the designated position of the floating body, which is manually set by using a position setting circuit, and the tension of each ship-mooring cable, an arithmetic circuit 4 calculates the cable drawing-out/rewinding length of each ship mooring cable, which is necessary to put the position of the floating body back to the designated position. Next, after inputting the signal for the cable drawing- out/rewinding length which is detected by a cable length meter, a control signal output circuit 6 gives the start/stop instruction to a winch start/stop control device 7, in order to perform the drawing-out or rewinding of the cable to the length as obtained in the above. With this contrivance, both automation and accuracy-improvement in the designated-mooring-position-keeing-work can be achieved.
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