Ship navigation assistance device

A technology for supporting devices and ships, which is applied in waterborne ship navigation equipment, measuring devices, ship traffic control and other directions, can solve the problem of inability to obtain safe information, and achieve the effect of improving the degree of freedom of shape

Active Publication Date: 2020-11-20
TOKYO KEIKI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] According to such a TT function, it is possible to judge the risk of collision with another ship while maintaining the course of the own ship, but in the case of evasive steering, it is impossible to obtain information about which course the ship chooses to be safe.

Method used

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Embodiment Construction

[0029] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0030] (Structure of ship navigation support device)

[0031] The configuration of the ship navigation support device according to the present embodiment will be described. figure 1 It is a figure which shows the overall structure of the system including the ship navigation support apparatus which concerns on this embodiment. figure 2 It is a block diagram showing the hardware configuration of the ship navigation support device. image 3 It is a block diagram showing the functional configuration of the ship navigation support device.

[0032] Such as figure 1 As shown, the system according to this embodiment includes: a ship navigation support device 3, a sensor group 4, and an AIS (Automatic Identification System: Automatic Identification System) 5 mounted on a ship 1 as the own ship; 2 equipped with AIS6.

[0033] Sensor group 4 comprises: the speed log that det...

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PUM

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Abstract

A ship navigation assistance device is provided with: an area setting unit (304) for setting, with respect to a different ship, a polygonal safe passing area which is configured by a plurality of vertexes and surrounds the different ship; a collision point calculation unit (305) for calculating, on the basis of the speed of an own ship, a relative position of the own ship to the different ship, and a speed vector of the different ship, a collision point between each of the plurality of vertexes which constitute the safe passing area and the own ship; and a collision danger range calculation unit (306) for calculating a collision danger range by connecting a plurality of collision points calculated by the collision point calculation unit (305).

Description

technical field [0001] The present invention relates to a ship navigation support device for displaying a collision risk range between an own ship and another ship to support the navigation of the ship. Background technique [0002] Generally, in order to avoid a collision with another ship, a ship is equipped with a radar device for detecting another ship and a radar indicator for displaying a video signal from the radar device on a display. In addition, the ARPA (Automatic Radar Plotting Aids: Automatic Radar Mapping) function has been installed on the radar indicator in the past: extract and track other ships from radar images, calculate and display the motion vectors of the other ships, and calculate the DCPA between the own ship and other ships (Distance ofClosestPoint ofApproach: the closest distance) and TCPA (Time to Closest Point ofApproach: the closest time), when the value is less than the reference value, an alarm is issued. This ARPA is currently called TT (Tar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G3/02G01S13/937B63B43/18B63B49/00
CPCB63B49/00G08G3/02B63B43/18B63B79/10G01S7/12G01S7/22G01S13/937G08B3/02G01S13/93G01C21/22
Inventor 箱山忠重八木修
Owner TOKYO KEIKI
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