Structural synthesizing method oriented to abstraction fault tree

A synthesis method and fault tree technology, applied in the field of accident analysis, can solve problems such as lack of versatility and applicability, difficulty in reference, and data not being well utilized.

Active Publication Date: 2018-06-12
QINGDAO UNIV OF SCI & TECH
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Problems solved by technology

Currently, the construction of the fault tree is mostly limited to the current accident itself, which is not universal and applicable, and it is difficult to form a general reference function, and the formed data is not well utilized in the later stage

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  • Structural synthesizing method oriented to abstraction fault tree
  • Structural synthesizing method oriented to abstraction fault tree
  • Structural synthesizing method oriented to abstraction fault tree

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Embodiment Construction

[0055] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0056] The design idea of ​​the present invention is: based on a large number of accident case fault trees that have formed the same type of accident cause, study the node similarity and structural similarity between similar fault trees, and design a structure synthesis method based on the case fault tree. By calculating the similarity between the abstract fault tree and the case fault tree node, the event nodes contained in the case faul...

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Abstract

The invention discloses a structural synthesizing method oriented to an abstraction fault tree. The logic gate semantic relation between event nodes and events included in a case fault tree is incrementally extended into the abstraction fault tree by calculating the similarity of the abstraction fault tree and the case fault tree and calculating the logic gate semantic inclusion degree, so the extended abstraction fault tree keeps the original structural integrity and semantics and also incrementally includes structural features of the case fault tree and the logic semantics among the events of the case fault tree, the extended abstraction fault tree becomes an abstraction synthesis for gathering similar events through continuous synthesis, and the structural mapping of the case fault treeand the abstraction fault tree is established. Powerful support is provided for event analyzing and early warning, the early warning and preventing capacity of enterprises for major events can be easily improved, property loss is reduced, and similar events are prevented from being repeated.

Description

Technical field [0001] The invention relates to the technical field of accident analysis, in particular to an abstract fault tree-oriented structure synthesis method. Background technique [0002] In recent years, with the rapid development of my country’s economy and society, the application of various new materials, vehicles, processing equipment, processes, and the degree of integration, automation, and scale in the production process have been increasing, resulting in a complicated evolution of accidents at this stage. , Unclear evolution path and other characteristics. Accurate and comprehensive analysis of the accidents that have occurred, and learning from the accidents that have occurred is an important way to guide safe production, accident prevention and early warning. Because there is no reasonable summary of historical accidents and the formation of reasonable emergency reference materials, various similar chemical accidents occur frequently, and each accident requires...

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Application Information

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IPC IPC(8): G06F17/30
CPCG06F16/2246G06F16/2453G06F16/2462
Inventor 杜军威马超李浩杰于洋洋于旭江峰胡强陈卓
Owner QINGDAO UNIV OF SCI & TECH
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