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

A marine environment and safety assessment technology, applied in the field of information processing, can solve problems such as complex calculation process, difficult implementation, and complex methods

Active Publication Date: 2014-11-05
哈尔滨哈船导航技术有限公司
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  • Application Information

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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

Method used

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

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Embodiment Construction

[0043] The present invention will be further described below in conjunction with the accompanying drawings.

[0044] The technical scheme adopted in the present invention is a method for assessing marine environment safety based on the D-S evidence theory, and the method comprises the following steps:

[0045] (1) The computer obtains the values ​​of marine environmental elements, and outputs the basic probability assignments of each marine environmental element through calculation. Specific steps are as follows:

[0046] 1) Identify the framework for determining the safety level of the marine environment.

[0047] According to the actual situation of the marine environment, the safety level of the marine environment is divided into five safety levels: very safe, relatively safe, generally safe, relatively dangerous, and very dangerous, respectively using θ 1 ,θ2 ,θ 3 ,θ 4 ,θ 5 Express them, then the identification framework of marine environment safety level Θ={θ 1 ,θ ...

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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...

Claims

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Application Information

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IPC IPC(8): G06F19/00
Inventor 赵玉新贾韧锋张靖靖陈立娟李旺吴迪杜雪常帅刘厂
Owner 哈尔滨哈船导航技术有限公司
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