Method for determining safe course interval of ship and related system

A method for determining the method and heading technology, which is applied to the determination method of the safe heading interval of the ship and the related system field, which can solve the problems such as the difficulty of guaranteeing the effectiveness, the lack of on-site basis for the magnitude of the steering range, and the missed timing of the best avoidance. Solve the problem of underwater collision avoidance, good real-time effect

Inactive Publication Date: 2020-12-15
中国船舶重工集团公司第七0七研究所九江分部
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Problems solved by technology

In many literatures, the range of steering avoidance is limited to a certain value, such as "turn right 30 degrees", "turn left 40 degrees". That is to say, the determination of the amplitude is not based on the movement elements of our ship and the target ship under the current conditions, but is stipulated in advance, and the va

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  • Method for determining safe course interval of ship and related system
  • Method for determining safe course interval of ship and related system
  • Method for determining safe course interval of ship and related system

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[0043] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0044] refer to figure 1 As shown, the method for determining the safe heading interval of the ship provided by the embodiment of the present invention includes the following steps:

[0045] S100. According to the minimum safe encounter distance DCPA S and the current orientation of the target ship to obtain the relative motion velocity vector of critical safety avoidance;

[0046] S200. Calculate that the ship satisfies |DCPA|≥D...

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Abstract

The invention discloses a method for determining a safe course interval of a ship and a related system. The method comprises the steps: obtaining a relative motion speed vector of critical safe avoidance according to a safe distance to the closest point of approach DCPAS and the current direction of a target ship; calculating a course interval of the ship meeting the condition that DCPA is greaterthan or equal to DCPAS; solving any course value C''o in the safe course range of the ship, and expressing the calculated safe course range of the ship in an interval form; and when multiple ships meet, calculating a safe course interval of the ship for each target, taking the intersection of all the safe course intervals as the safe course interval of the ship for avoiding collision with multiple ships, and selecting the safe course with the minimum steering amplitude as a new navigation direction for steering collision avoidance. The safe course of the ship is expanded to one or two interval sections from one constant value, the collision avoidance amplitude selection margin is larger, and the flexibility is higher; and meanwhile, based on the current collision avoidance situation, theresult calculated by the method has the advantages of good real-time performance, high effectiveness and good flexibility.

Description

technical field [0001] The invention relates to the technical field of ship navigation, in particular to a method for determining a safe course interval of own ship and a related system. Background technique [0002] When a ship maneuvers, it usually avoids the target by changing its direction, and the theoretical basis for determining the avoidance range is crucial to the effectiveness of collision avoidance actions. In many literatures, the range of steering avoidance is limited to a certain value, such as "turn right 30 degrees", "turn left 40 degrees". That is to say, the determination of the amplitude is not based on the movement elements of our ship and the target ship under the current conditions, but is stipulated in advance, and the validity is difficult to guarantee; on the other hand, due to the influence of factors such as visibility and crew attention, often If you miss the best avoidance opportunity or the latest rudder point, it is particularly important to e...

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Application Information

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IPC IPC(8): G08G3/02
CPCG08G3/02
Inventor 谌兴良徐雪峰王琳琳赵光袁川丁龙李兆斌孙寒冰但杨文杜亚震
Owner 中国船舶重工集团公司第七0七研究所九江分部
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