Marine environment safety assessment method based on D-S evidence theory

Abstract

The invention belongs to the technical field of information processing and particularly relates to a marine environment safety assessment method based on the D-S evidence theory. According to the marine environment safety assessment method, according to the D-S evidence theory, multiple marine environment element data are fused, so that marine environment safety assessment is achieved. The marine environment safety assessment method comprises the steps that (1) a computer obtains marine environment element values, and the basic probability assignment of each marine environment element is output through calculation; (2) the computer conducts fusion on the basic probability assignment obtained in the step (1) according to the D-S evidence theory fusion rule, and the fused basic probability assignment is output; (3) the computer judges the fused basic probability assignment according to the decision rule, and then the marine environment safety elevation result is output. By the adoption of the marine environment safety assessment method based on the D-S evidence theory, marine environment safety assessment is effectively achieved, reasonable decision support can be provided for a decider, and the safety of a ship sailing on the sea and the economical efficiency of the ship are improved.

Description

technical field [0001] The invention belongs to the technical field of information processing, and in particular relates to a marine environment safety assessment method based on the D-S evidence theory for merging various marine environment element data based on the D-S evidence theory to realize marine environment security assessment. Background technique [0002] In recent years, with the emphasis on marine development, various new technologies and means have been used for marine environmental observation and data acquisition, thus accumulating a large amount of marine environmental element data. The data of marine environmental elements are the basic physical factors that can reflect the state of the marine environment, and they have a significant impact on the safety and economy of ship navigation. How to use these data more effectively to assist ship navigation is gradually becoming a research hotspot. [0003] There are many types of marine environmental elements, am...

AI Technical Summary

Problems solved by technology

Probabilistic risk method is an effective evaluation method, but its method is too complicated and difficult to implement

The gray relational method and the fuzzy comprehensive method not only have objective data as the evaluation basis, but also have experts’ subjective opinions on each evaluation index as a reference. More will lead to a larger amount of calculation and a more complicated calculation process

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