To calculate a collision danger range with secured reliability while improving the degree of freedom in a shape of a safe vessel passage area set for a vessel.SOLUTION: A navigation support device for a vessel includes: area setting means 304 for setting a polygonal shape safe vessel passage area composed of a plurality of apexes and surrounding other vessels to other vessels; a collision point calculation unit 305 for calculating a collision point of each of the plurality of apexes composing the safe vessel passage area with an own vessel on the basis of a speed of the own vessel, a relative position of the own vessel with other vessels, and a speed vector of other vessels; and a collision danger range calculation unit 306 for calculating a collision danger range by connecting the plurality of collision points calculated by the collision point calculation unit 305.SELECTED DRAWING: Figure 3
【課題】 船舶に設定する安全航過領域の形状の自由度を向上させつつ信頼性が確保された衝突危険範囲を算出することができる。【解決手段】 複数の頂点から構成されて他船を取り囲む多角形状の安全航過領域を他船に対して設定する領域設定部304と、自船の速力と、自船と他船との相対位置及び他船の速度ベクトルとに基づいて、安全航過領域を構成する複数の頂点のそれぞれと自船との衝突点を算出する衝突点算出部305と、衝突点算出部305により算出された複数の衝突点を結線することにより衝突危険範囲を算出する衝突危険範囲算出部306とを備えた。【選択図】図3
NAVIGATION SUPPORT DEVICE FOR VESSEL
船舶用航行支援装置
2019-10-03
Patent
Elektronische Ressource
Japanisch
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