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Navigation aid method, device and program

  • US 8,423,278 B2
  • Filed: 11/18/2009
  • Issued: 04/16/2013
  • Est. Priority Date: 11/19/2008
  • Status: Active Grant
First Claim
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1. A navigation aid device, comprising:

  • a calculation time setting module for setting two or more calculation points of time for calculating trial information;

    a ship-concerned information acquisition module for acquiring ship-concerned information including a position of a ship concerned at every predetermined ship-concerned information acquisition time;

    a ship-concerned trial information calculating module for calculating ship-concerned trial information including future positions of the ship concerned at the respective two or more calculation points of time based on the most-recently acquired ship-concerned information;

    a display module for simultaneously displaying on a screen the future positions of the ship concerned so as to correspond to respective positions on the screen;

    a target-object information acquisition module for acquiring target-object information including a position of a target object other than the ship concerned at every predetermined target-object information acquisition time; and

    a target-object trial information calculating module for calculating target-object trial information including future positions of the target object at the respective two or more calculation points of time based on most-recently acquired target-object information;

    wherein the display control module causes the display module to simultaneously display the future positions of the target object at the respective two or more calculation points of time, the future positions of the target object being displayed so as to correspond to respective positions on the screen.

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