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公开(公告)号：US20230278681A1
公开(公告)日：2023-09-07
申请号：US18196440
申请日：2023-05-12
IPC分类号： B63B43/18 , G08G3/02 , G01S13/937
CPC分类号： B63B43/18 , G08G3/02 , G01S13/937
摘要： The present disclosure provides a ship monitoring system capable of visualizing a risk of a collision or an approach in a width direction perpendicular to a heading of another ship. The ship monitoring system includes a first data generator, a second data generator, and processing circuitry. The first data generator generates first ship data indicative of a position and a velocity of a first ship. The second data generator generates second ship data indicative of a position and a velocity of a second ship. The processing circuitry specifies a risk range where a risk value indicative of a risk of a collision between the first ship and the second ship is above a threshold among an estimated course of the second ship, based on a position of the first ship and a position of the second ship at each timing, that are estimated from the first ship data and the second ship data, when assuming that the first ship changes a course to an arbitrary direction and crosses the estimated course of the second ship. The processing circuitry further display a polygonal OZT (Obstacle Zone by Target) having vertexes at least comprised of a rear end and a front end of the risk range, and a representative point of the first ship located at a position corresponding to the rear end of the risk range.
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公开(公告)号：US20230260406A1
公开(公告)日：2023-08-17
申请号：US18139360
申请日：2023-04-26
发明人： Yuichi TAKEBAYASHI
摘要： The present disclosure provides a ship monitoring system capable of appropriately evaluating risks of collisions for a plurality of other ships which constitute a convoy. The ship monitoring system includes a first data generator, a second data generator, and processing circuitry. The first data generator generates first ship data indicative of a position and a velocity of a first ship. The second data generator generates a plurality of second ship data indicative of positions and velocities of a plurality of second ships. The processing circuitry calculates a risk value indicative of a risk of a collision between the first ship and each of the plurality of second ships based on the first ship data and the plurality of second ship data. The processing circuitry determines whether the plurality of second ships are a convoy based on the plurality of second ship data. The processing circuitry selects a representative value from the risk values calculated for the plurality of second ships determined to be the convoy.
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公开(公告)号：US20240109626A1
公开(公告)日：2024-04-04
申请号：US18537817
申请日：2023-12-13
摘要： A ship monitoring system makes it easier to grasp a heading of another ship, and includes a first data generating part, a second data generating part, and processing circuitry. The first data generating part generates first ship data indicative of a position and a velocity of a first ship. The second data generating part generates second ship data indicative of a position and a velocity of a second ship. The processing circuitry calculates a risk value indicative of a risk of the first ship and the second ship colliding each other, for each point on an estimated course of the second ship, based on the first ship data and the second ship data, when assuming that the first ship changes the course and reaches the point. The processing circuitry displays a risk area indicative of a heading of the second ship at the point where the risk value is more than a threshold.
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公开(公告)号：US20230296765A1
公开(公告)日：2023-09-21
申请号：US18136896
申请日：2023-04-20
IPC分类号： G01S13/937
CPC分类号： G01S13/937
摘要： The present disclosure provides a ship monitoring system capable of improving legibility of an OZT. The ship monitoring system includes a first data generator, a second data generator, and processing circuitry. The first data generator generates first ship data indicative of a position and a velocity of a first ship. The second data generator generates second ship data indicative of a position and a velocity of a second ship. The processing circuitry calculates a risk value indicative of a risk of a collision between the first ship and the second ship based on the first ship data and the second ship data, for each point on an estimated course of the second ship, when the first ship is assumed to change a course and reach the point. The processing circuitry specifies a range where two or more continuous points have the risk values above a threshold. The processing circuitry displays a risk range including the range where the two or more continuous points have the risk values above the threshold.
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