Krill fishing net port advancing route planning method

Abstract

The invention relates to a krill fishing net port advancing route planning method, which comprises the following steps: obtaining a plurality of density centers of a krill group through a sliding window method, and connecting the obtained density centers to obtain a route cluster; and constructing a route evaluation model through an analytic hierarchy process, wherein the route evaluation model comprises a target layer, a criterion layer, a sub-criterion layer and a scheme layer. Construction of the route evaluation model specifically comprises the following steps: acquiring the ratio of factors in the criterion layer; calculating a pairwise comparison judgment matrix of each factor in the sub-criterion layer under the criterion layer; respectively calculating the weight of each factor in the sub-criterion layer under the criterion layer according to the judgment matrix; calculating the comprehensive weight of the route evaluation model according to the judgment matrix and the weight of each factor in the sub-criterion layer under the criterion layer; and according to the path cluster evaluated by the comprehensive weight of the path evaluation model, obtaining an optimal path curve. According to the invention, the optimal fishing net port advancing route suggestion can be provided for the ship.

Description

technical field [0001] The invention relates to the technical field of krill fishing, in particular to a method for planning the forward route of a krill fishing net opening. Background technique [0002] Antarctic krill is a highly clustered plankton with a biomass of about 1 to 2 billion tons and an annual catch of 150 million tons, which has extremely high economic value. [0003] At present, scholars from Ocean University of China, Shanghai Ocean University, Tongji University and other schools have done a lot of research on the factors that affect Antarctic krill fishing efficiency. Existing studies have shown that whether the net mouth is facing the mass center of krill clusters is the primary factor affecting the fishing efficiency of Antarctic krill. However, these studies are only the discussion of the influencing factors, and there is no research on the planning of fishing routes in net mouths. How to design a net mouth advance route with high fishing rate and eas...

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Problems solved by technology

However, these studies are only the discussion of the influencing factors, and there is no research on the planning of net fishing routes

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