Fault tree collaborative analysis system based on authority management and model decomposition

Abstract

The invention discloses a fault tree collaborative analysis system based on authority management and model decomposition. The system mainly comprises the following seven modules which include a modeling target resolver, a modeling task decomposer, an authority manager, an authority mapper, a conflict inhibitor, a model combiner and a model analyzer. According to the system, a collaborative technology is applied from modeling target analysis and task definition to specific modeling processes, and fault tree modeling analysis can be achieved by cooperation of multiple persons and multiple roles under the action of authority management and mapping mechanism; a collaboration platform is provided for fault tree modeling staff, and fault tree modeling tasks of large complicated systems in fields of navigation, aerospace, nuclear power energy and the like can be achieved; requirements in terms of model scale and multidisciplinary approach in fault tree modeling of current large complicated systems can be met, and the task of fault tree modeling analysis can be efficiently finished by cooperation of modeling staff with different knowledge backgrounds and professional skills.

Description

technical field [0001] The invention relates to a fault tree collaborative analysis system based on authority management and model decomposition, and belongs to the technical field of fault tree analysis in system reliability and probability safety analysis. Background technique [0002] The fault tree analysis (Fault Tree Analysis, FTA) method is a safety analysis technique developed by NASA and the Department of Defense in the 1960s. It was applied in the aerospace industry in the early 1960s and has developed rapidly since then. It has become one of the indispensable analytical tools in the fields of reactor and chemical industry. Fault Tree Modeling is the process of drawing a logical block diagram by analyzing various factors that may cause system failure during the system design process, and the block diagram is an abstraction of the system failure mode. [0003] To establish a fault tree that conforms to the actual failure conditions of the system as much as possible...

AI Technical Summary

Problems solved by technology

[0010] With the continuous development of modern technology and industrial level, the fault tree modeling of large and complex systems poses challenges to traditional computer-aided modeling techniques. Traditional computer-aided modeling provides a visual working platform for modelers. Modeling Personnel can improve their work efficiency with the help of computer computing performance and operational convenience, and can effectively combine with back-end analysis, but modern large-scale and complex systems show rapid growth in terms of scale and subject background The traditional representative fault tree analysis software CAFTA, RiskSpectrum, etc. still adopt the single-person single-computer modeling method, which cannot meet the needs of modern large-scale and complex fault tree modeling in terms of efficiency and correctness.

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