An optimization method for ship collision avoidance decision-making based on prospect theory

An optimization method and collision avoidance technology, applied in the direction of ship traffic control, design optimization/simulation, instruments, etc., can solve the problem of not considering the stability of the ship's trajectory, the driver's subjective risk preference and lack of understanding, and the failure to reflect the subjective differences of the crew, etc. It can save navigation costs, improve the efficiency of collision avoidance, and ensure the safety of navigation.

Active Publication Date: 2022-06-17
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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  • An optimization method for ship collision avoidance decision-making based on prospect theory
  • An optimization method for ship collision avoidance decision-making based on prospect theory
  • An optimization method for ship collision avoidance decision-making based on prospect 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 implementations of the present invention are further described in detail below with reference to the accompanying drawings and simulation experiments.

[0071] Typical meeting scene

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

[0073] Taking a 225m long, 76,000-ton full-load bulk carrier as the simulation object, it is assumed that the ship sails at a speed of 15kn with a heading of ...

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Abstract

The invention discloses a ship collision avoidance decision optimization method based on prospect theory, which selects collision risk, voyage loss and track stability as collision avoidance decision optimization indexes, and constructs a ship collision avoidance decision optimization model based on prospect theory to reduce human risk Preference is taken into account, and the prospect theory is used to solve the decision-making differences caused by the different risk attitudes of ship drivers in the process of ship collision avoidance, and the optimal collision avoidance decision of different crew members under different risk preferences is selected, so as to ensure navigation safety. The purpose of improving the efficiency of collision avoidance and saving navigation costs.

Description

technical field [0001] The invention relates to the technical field of ship collision avoidance, in particular to a prospect theory-based ship collision avoidance decision optimization method. Background technique [0002] The decision-making of ship collision avoidance has always been a hot and difficult issue in the field of navigation safety, which 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" to "intelligent collision avoidance". In the early days, the collision avoidance of ships mainly used geometric calculation methods, and the collision risk of ships was evaluated by calculating the closest encounter distance between ships and the time to reach the closest encounter distance. When there is a risk of collision during the ship's navigation, the ship's driver usually adopts steering and c...

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Application Information

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Patent Type & Authority Patents(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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