Complex water traffic scene risk degree evaluation method using cloud model

An evaluation method and cloud model technology, which is applied in the fields of water transportation system safety, safety science and engineering, and can solve the problems of ambiguity and randomness of water transportation system safety evaluation work.

Pending Publication Date: 2020-07-31
ZHEJIANG OCEAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the safety evaluation work of water transportation system has obvious fuzziness and randomness.

Method used

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  • Complex water traffic scene risk degree evaluation method using cloud model
  • Complex water traffic scene risk degree evaluation method using cloud model
  • Complex water traffic scene risk degree evaluation method using cloud model

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] like Figure 1-2 As shown, a method for evaluating the risk of complex water traffic scenarios using cloud models includes the following steps:

[0050] Step 1: Determine or select the evaluation object

[0051] The evaluation object is the constituent elements of the three-level system of the entire complex water traffic scenario in a certain water area, such as wind, wave, current, fog, visibility, and ship traffic flow. After statistical analysis and screening of the above four types of data, the evaluation objects are obtained to establish a database and input into the storage address of the computer device. The specific evaluation objects or indicators are shown in Table 1:

[0052] Table 1 Risk assessment objects or indicators for complex water traffic scenarios

[0053]

[0054]

[0055] Step 2: Determine the evaluation reference scale

[0056] By setting qualitative variables and numerical variables, setting the universe of the qualitative variables an...

Embodiment 2

[0100] When a method for evaluating the risk of complex water traffic scenarios using a cloud model of the present invention is actually used, it comprises the following steps:

[0101] Step 1: Determine or select the evaluation object

[0102] The evaluation object is the entire complex water traffic scene in a certain water area, that is, the first-level system, or the subsystem of the first-level system, that is, the second-level system, or the subsystem of the second-level system, that is, the third-level system, or the subsystem of the second-level system, that is, the third-level system. The constituent elements of the above-mentioned three-level system, after statistical analysis and screening of the above four types of data, obtain the evaluation objects to establish a database and input them into the storage address of the computer device.

[0103] Step 2: Determine the evaluation reference scale

[0104] By setting qualitative variables and numerical variables, sett...

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Abstract

The invention discloses a complex water traffic scene risk degree evaluation method using a cloud model, which belongs to the field of safety science and engineering and water traffic system safety, and mainly comprises the following steps: selecting an evaluation object based on a systematic and hierarchical analysis method; determining evaluation reference scales based on a golden section method; converting the navigation environment risk degree represented by the phrase into a cloud model; integrating the plurality of cloud models by adopting weighted aggregation to obtain a final integrated risk degree cloud model; and adopting a one-dimensional forward cloud generator algorithm to generate a risk cloud model cloud drop and plot the risk cloud model cloud drop. According to the invention, navigation environment multi-channel information and expert evaluation are integrated; an evaluation result is converted into different cloud models and integration is carried out; the evaluationis more objective and fair, uncertainty of the evaluation process is fully reflected, qualitative and quantitative evaluation results of the risk degree can be visually and rapidly displayed through one-dimensional normal cloud plane display, operation is simple and convenient, maximum effective utilization can be realized, and the method has guidance and reference effects for risk degree evaluation and pre-judgment.

Description

technical field [0001] The invention belongs to the fields of safety science and engineering and water traffic system safety, and in particular relates to a method for evaluating the risk degree of complex water traffic scenarios using a cloud model. Background technique [0002] Safety assessment of water transportation system is a complex and meticulous work. There are many uncertainties in the process of risk assessment of navigation environment. For example, much work is carried out involving expert evaluation. Due to differences in professional background and personal understanding, experts may use quantitative values ​​to give evaluation results, or use vague language to give evaluation results. Therefore, the safety evaluation work of water transportation system has obvious ambiguity and randomness. At this time, it is very important to comprehensively form a reasonable and credible final evaluation result by ensuring the accurate mapping of qualitative variables a...

Claims

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Application Information

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IPC IPC(8): G06Q10/06G06Q50/30
CPCG06Q10/06393G06Q50/40
Inventor 田延飞周欣蔚张洪刚温小飞王捷
Owner ZHEJIANG OCEAN UNIV
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