Characteristic configuration-based fault tree generation method

A fault tree and fault technology, applied in the field of safety analysis of safety-critical systems, can solve problems such as high cost, inability to cope with system scale and other problems, and achieve the effect of improving efficiency and accuracy

Active Publication Date: 2016-03-23
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
View PDF0 Cites 26 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is: aiming at the high cost of the traditional fault tree generation method and the inability to cope with the defects of huge system scale and hig

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Characteristic configuration-based fault tree generation method
  • Characteristic configuration-based fault tree generation method
  • Characteristic configuration-based fault tree generation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0044] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0045] Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:

[0046] The specific embodiment takes figure 2 The data logger system shown is an example. figure 1 It is a flow chart of the technical solution of the present invention, and the specific implementation steps are as follows:

[0047] Step 1. Analyze the data collector system and establish a normal behavior model of the system. like figure 2 , the data collector system (Acquisition) includes a monitoring mod...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a characteristic configuration-based fault tree generation method. The method comprises the following steps: introducing the variable modeling of software product lines into the safety analysis process, and utilizing a characteristic model as a system fault structural model to depict the hierarchical and restriction relationships of the faults; proposing a fault labeled transition system (FLTS) for the expanding of state transition and using the FLTS as a system fault behavior model; defining the process of generating the fault tree by utilizing model detection on the basis of the semantic of the FLTS; and finally realizing the method of generating the fault tree on the basis of fault configuration by utilizing an existing software product line model detector. According to the method provided by the invention, the characteristic model is utilized to depict the system static hierarchical structure, the subordination relationship between the faults and components as well as the restriction relationship among the faults; and by utilizing the characteristics of the software product line model detection, all the cut sets of specific safety attributes can found on the basis of a system model, so that the fault tree generation efficiency and correctness are improved.

Description

technical field [0001] The invention discloses a fault tree generation method based on feature configuration, and relates to the technical field of safety analysis of safety-critical systems. Background technique [0002] The safety of safety-critical systems such as aviation and nuclear power has been paid more and more attention. System security analysis is the core content of system security engineering, and it is the basis of security assessment. The main purpose of system security analysis is to understand and find out the dangers of the system, ensure that the system meets the specified security requirements, and provide a basis for security assessment. The main content of system safety analysis is to study the system behavior when some system components are in abnormal working state due to faults. [0003] Fault Tree Analysis (FaultTreeAnalysis, FTA) is one of the most common security analysis techniques, it is a top-down deductive analysis system design and reliabi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G06F19/00
CPCG16Z99/00
Inventor 魏欧黄鸣宇罗炜麟王立松
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap