Ship collision avoidance decision optimization method based on foreground theory

An optimization method and collision avoidance technology, applied in ship traffic control, design optimization/simulation, complex mathematical operations, etc., can solve the problem of not considering the stability of the ship's trajectory, not reflecting the subjective differences of the crew, and the driver's subjective risk preference and understanding problems such as insufficiency

Active Publication Date: 2020-07-10
WUHAN UNIV OF TECH
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Problems solved by technology

[0004] However, ship pilots have individual differences in collision avoidance behavior due to differences in psychology, personality, and driving experience. The multi-objective function composed of collision risk and voyage loss does not reflect the crew's subjective differences, and does not consider the stability of the ship's trajectory as a give-way ship in collision avoidance operations.

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  • Ship collision avoidance decision optimization method based on foreground theory
  • Ship collision avoidance decision optimization method based on foreground theory
  • Ship collision avoidance decision optimization method based on foreground theory

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Embodiment Construction

[0070] In order to make the content and technical solutions of the present invention clearer, the principles and specific implementation methods of the present invention will be further described in detail below in conjunction with the accompanying drawings and simulation experiments.

[0071] typical encounter scene

[0072] The present invention designs a typical cross-encounter scene for simulation experiments based on the representative real ship information that has been mastered, analyzes the impact of the crew's risk attitude on the collision avoidance decision, and simulates the collision avoidance decision for the encounter scene to generate a collision avoidance decision , and use the model of the present invention to optimize the decision, so as to verify the usability and effectiveness of the model of the present invention.

[0073] Taking a bulk carrier with a length of 225m and a full load of 76,000 tons as the simulation object, it is assumed that the ship is sa...

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Abstract

The invention discloses a ship collision avoidance decision optimization method based on a foreground theory. The collision risk degree, the voyage loss and the trajectory stability are selected as collision avoidance decision optimization indexes; a ship collision avoidance decision optimization model based on a foreground theory is constructed, and risk preferences of people are considered; decision difference caused by different risk attitudes of a ship driver in the ship collision avoidance process is solved by utilizing a foreground theory, and optimal collision avoidance decisions of different crew psychological expectations under different risk preferences are selected, so that the purposes of guaranteeing navigation safety, improving collision avoidance efficiency and saving navigation cost are achieved.

Description

technical field [0001] The present invention relates to the technical field of ship collision avoidance, in particular to a ship collision avoidance decision optimization method based on prospect theory. Background technique [0002] The decision-making problem of ship collision avoidance has always been a hot and difficult issue in the field of navigation safety, and is closely related to many factors such as the ship's own conditions, navigation environment and crew quality. Ship collision avoidance technology has experienced the development from geometric method and radar to "expert system" and then to "intelligent collision avoidance". In the early days, ship collision avoidance mainly used geometric calculation methods to evaluate the collision risk of ships by calculating the closest encounter distance between ships and the time to reach the closest encounter distance. When a collision risk occurs during the ship’s navigation, the ship’s driver usually adopts steering...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20G06F17/16G08G3/02
CPCG06F17/16G08G3/02
Inventor 刘克中吴晓烈胡佳颖袁志涛杨星刘炯炯王伟强
Owner WUHAN UNIV OF TECH
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