Inter-ship relative field acquisition method based on ship cluster situation

Abstract

The embodiment of the invention relates to an inter-ship relative field acquisition method based on a ship cluster situation. The inter-ship relative field acquisition method comprises the following steps: dividing an interest perception area of a target ship into a plurality of interest perception subareas according to a ship safety meeting distance; according to the navigational speeds and the navigational directions of the target ship and the interference ship, the relative directions of the target ship and the interference ship, and the collision avoidance response time, in combination with the ship length of the target ship and / or the interference ship, calculating to obtain inter-ship variable advancing distances of the target ship under different meeting situations; determining a weight factor of the inter-ship variable carry distance in the plurality of interest perception sub-regions; calculating to obtain an inter-ship variable path distance according to the inter-ship variable advance distance and the weight factor; and obtaining a plurality of boundary points according to the inter-ship variable path distances of the interest perception sub-regions, and fitting to obtain the inter-ship relative field based on the ship cluster situation. According to the inter-ship relative field acquisition method, the inter-ship variable pitch is calculated according to the inter-ship variable pitch under different meeting types of the target ship and the interference ship in combination with the weight factor, and the inter-ship relative field based on the ship cluster situation is established in real time.

Description

technical field [0001] The invention relates to the technical field of ships, in particular to a method for acquiring relative domains among ships based on ship cluster situation. Background technique [0002] The ship area is an area around the ship that prevents other ships from entering. It is one of the important standards to measure the safety between ships. The ship area is particularly important for judging the safety of navigation in the case of multi-ship encounters. [0003] Existing research in the field of multi-ship encounter ships is mostly based on ship observation data, and the target ship field is fitted by the position of other ships in the observation data. This method considers relatively single factors and does not consider complex environmental factors. At the same time, the obtained ship domain is relatively fixed and cannot change in real time with the navigation environment. [0004] During the collision avoidance process, the advancing distance of ...

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Problems solved by technology

[0008] In order to solve the above-mentioned problems in the prior art, the present invention provides a method for acquiring relative domains between ships based on the ship cluster situation, which solves the problem in the prior art that the domain of ships encountered by multiple ships cannot change with the environment in real time

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