| 摘要 |
PURPOSE:To facilitate the operation of a ship when driving trawlnet fishing, round- haul-net fishing, etc., are performed and to avoid the overlapping of capturing points, contact accidents and the like by measuring own wake, another wake, the position of own ship, the position of another ship, planned routes, obstacles and tidal current vector, and displaying the data on the same screen. CONSTITUTION:An own wake T, another wake S, a position U of own ship U, a position R of another ship, a planned route V, obstacles W, and tidal current vector X are displayed on the same screen at the same time. When the course should be changed can e estimated by displaying the planned route V. Ropes can be stretched symmetrically in the left and right in driving trawlnet fishing. When the position of the obstacle is confirmed and the course V is set, the safe operation can be performed without hooking the net. The tidal current vector X becomes the yarstick for the operation of the ship. The other wake S and the position of R of the other ship are confiemd, and the contact accident can be avoided. The tidal current vector X is measured with a tidal current meter. The own-ship position U is measured with a GPS and the like. The other-ship position R is measured with a radar system. The display and the change of graphic data, the change in rope length and the like are performed with an operating part. |
