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A Reliability Evaluation Method for Critical Infrastructure

An infrastructure and reliability technology used in data processing applications, instruments, computing, etc.

Active Publication Date: 2022-01-07
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Finally, this method can be applied to systems with any degree of fault correlation, while traditional reliability analysis methods mostly assume that faults are independent or weakly correlated

Method used

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  • A Reliability Evaluation Method for Critical Infrastructure
  • A Reliability Evaluation Method for Critical Infrastructure
  • A Reliability Evaluation Method for Critical Infrastructure

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Embodiment Construction

[0037] In order to make the technical problem to be solved in the present invention, the technical scheme clearer, the following will be combined with the attached figure 1 The method flow chart and attached figure 2 The specific implementation cases are described in detail.

[0038] The present invention is a method for evaluating the reliability of critical infrastructure, that is, a method for evaluating the reliability of critical infrastructure based on the fault correlation network seepage model, see figure 1 As shown, its specific implementation steps are as follows:

[0039] Step 1: Obtain the historical failure data of system nodes, determine the appropriate number of nodes, time interval and spatial distribution, so as to obtain the 0-1 failure time series of each node;

[0040] The present invention takes a coupling system composed of two infrastructure systems A and B as an example. Select N in the two systems respectively A , N B system nodes, obtain a 0-1 f...

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Abstract

The present invention provides a method for evaluating the reliability of critical infrastructure based on the fault correlation network seepage model, the steps are as follows: 1: Obtain historical fault data of system nodes, determine the number of nodes, time interval and spatial distribution; 2: use fault correlation The calculation method, by taking a certain threshold for the edge weight and time delay, forms a directed, weighted multi-layer fault correlation network; three: use the edge weight corresponding to the remaining largest connected group of a certain scale as the evaluation The index of the typical strength of the coupling relationship of the whole system; through the above steps, the present invention effectively evaluates the reliability of the coupling system composed of different key infrastructure (sub)systems, and reveals that different system nodes are in (sub)systems and across different (sub)systems. It solves the problem of node protection in the complex infrastructure system of modern society.

Description

technical field [0001] The present invention proposes a method for evaluating the reliability of critical infrastructure, which is a reliability evaluation method for critical infrastructure based on a fault-related network seepage model, that is, a method for evaluating the reliability of critical infrastructure based on a fault-related network seepage model, which belongs to System reliability technology field. Background technique [0002] Critical infrastructure generally refers to the most important infrastructure systems related to the normal and safe operation of the country's economy and society in the fields of communication, electricity, energy, transportation, and water supply. Therefore, evaluating the security risks of critical infrastructures and improving the system reliability of critical infrastructures are major issues for realizing national security and normal social operation. [0003] At present, many countries are in a new era of rapid development of I...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q10/06
CPCG06Q10/06395
Inventor 周栋李大庆康锐
Owner BEIHANG UNIV
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