| 摘要 |
PROBLEM TO BE SOLVED: To make it possible to keep truck of a visible range on the sea in a wide area.SOLUTION: A ship 2 cruising on the sea and a control facility 3 for controlling the navigation of the ship 2 are communicatively connected. The ship 2 includes a visibility measuring unit 21 for measuring a visible range and a positioning unit 22 for positioning the location of the ship, and sequentially transmits the visible range measured by the visibility measuring unit 21 and the location of the ship measured by the positioning unit 22 to the control facility 3 as it cruises.SELECTED DRAWING: Figure 1 |
