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

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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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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