Ship navigation support systems, ship navigation support methods, programs

Abstract

To provide a ship navigation support device capable of identifying a level to which attention should be paid in a range where there is the risk of collision.SOLUTION: A safe passing range in which an own ship and the other ship can safely pass is provided with the own ship as a reference, and a display device displays an attention area representing a range, which is calculated based on the safe passing range, in which there is the risk of collision of the own ship and the other ship. A range at a different attention level based on a distance / azimuth with the own ship as a reference is provided in the safe passing range, and a display control unit is provided for bringing a dangerous area calculated based on the range at the different attention level into a display mode of a different color / pattern from the attention area.SELECTED DRAWING: Figure 1

Claims

1. The display control unit displays a safe passage range, based on the vessel itself, in which the vessel and other vessels can safely pass each other, and a warning area, calculated based on the safe passage range, in which there is a risk of collision between the vessel and other vessels. The display control unit displays ranges with different warning levels based on distance / direction relative to the vessel itself within the safe passage range, and displays a dangerous area belonging to the inner circumference of the warning area, calculated based on the ranges with different warning levels, in a display manner with a different color / pattern than the rest of the warning area. The display control unit, The display device will show on the display unit the ranges within the safe passage range that have different attention levels based on distance / direction relative to the vessel, in a different display manner than the parts of the safe passage range that do not have such different attention levels. Within the safe passage range, the display of ranges with different attention levels based on distance / direction relative to the vessel, and the display of the hazardous area calculated based on the ranges with different attention levels, shall be displayed so that at least one of the colors or patterns is the same. Ship navigation support equipment.

2. The display control unit is The display is shown in a manner that allows the user to understand the correspondence between the ranges with different attention levels and the hazardous area calculated based on those ranges with different attention levels. The ship navigation support device according to claim 1.

3. The display control unit, Within the aforementioned safe passage range, in a range with different attention levels based on distance / direction relative to the vessel, the attention level is indicated by varying the intensity of the color / pattern according to the distance and direction from the vessel. The display method for the hazardous area calculated based on the different ranges of the aforementioned warning levels will be displayed using the same display method as the shading of colors / patterns corresponding to the distance / direction from the vessel. The ship navigation support device according to claim 1 or claim 2.

4. The display control unit, When the distance between the vessel and the other vessel falls within a standard value, the danger is indicated by a different display method. A ship navigation support device according to any one of claims 1 to 3.

5. A computer-based method for assisting ship navigation, The display device displays a safe passage range in which the vessel and other vessels can safely pass each other, based on the vessel itself, and a warning area representing the range in which there is a risk of collision between the vessel and other vessels, calculated based on the safe passage range. Within the safe passage range, it displays ranges with different warning levels based on distance / direction relative to the vessel itself, and displays a dangerous area belonging to the inner circumference of the warning area, calculated based on the ranges with different warning levels, using a different color / pattern display method than the rest of the warning area. Displaying different ranges of the aforementioned attention levels is possible. This includes displaying on the display device, in a different display manner from the portion of the safe passage range outside of the area with different attention levels, based on distance / direction relative to the vessel, within the safe passage range, Displaying the aforementioned hazardous area in a different color / pattern from the rest of the caution area is, This includes displaying, in the aforementioned safe passage range, the ranges with different levels of caution based on distance / direction relative to the vessel, and the ranges of danger calculated based on the ranges with different levels of caution, such that at least one of the colors or patterns is the same. Ship navigation support method.

6. The display device displays a safe passage range in which the vessel and other vessels can safely pass each other, based on the vessel itself, and a warning area representing the range in which there is a risk of collision between the vessel and other vessels, calculated based on the safe passage range. Within the safe passage range, it displays ranges with different warning levels based on distance / direction relative to the vessel itself, and displays a dangerous area belonging to the inner circumference of the warning area, calculated based on the ranges with different warning levels, using a different color / pattern display method than the rest of the warning area. Displaying different ranges of the aforementioned attention levels is possible. This includes displaying on the display device, in a different display manner from the portion of the safe passage range outside of the area with different attention levels, based on distance / direction relative to the vessel, within the safe passage range, Displaying the aforementioned hazardous area in a different color / pattern from the rest of the caution area is, This includes displaying, in the aforementioned safe passage range, the ranges with different levels of caution based on distance / direction relative to the vessel, and the ranges of danger calculated based on the ranges with different levels of caution, such that at least one of the colors or patterns is the same. A program that causes a computer to perform a task.

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