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A Synthesis Method of d-Matrix Considering Port Cross-linking Relationship

A technology of relationship matrix and synthesis method, which is applied in the testing field, can solve problems such as no solution, large synthetic model, and inability to synthesize product models, etc., and achieve the effect of improving search efficiency

Inactive Publication Date: 2016-08-17
北京恒兴易康科技有限公司
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are two problems with this processing method: one is that the tools used for unit modeling may be different, resulting in the inability to synthesize product models; the other is that when there are many units, the synthetic model is huge, resulting in a geometric progression of the signal flow search workload
There is no effective solution for this

Method used

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  • A Synthesis Method of d-Matrix Considering Port Cross-linking Relationship
  • A Synthesis Method of d-Matrix Considering Port Cross-linking Relationship
  • A Synthesis Method of d-Matrix Considering Port Cross-linking Relationship

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Embodiment Construction

[0029] The present invention will be further described in detail with reference to the accompanying drawings and embodiments.

[0030] The present invention is a kind of D matrix synthetic method that considers port cross-linking relationship, such as figure 1 As shown, the specific steps are as follows:

[0031] Step 1: Establish the port expansion D matrix of each unit

[0032] The port expansion D matrix of the unit is defined as follows:

[0033]

[0034] In the formula: Represents the port expansion D matrix of the pth unit in the system;

[0035] T 1 p T 2 p . . . T n p p ...

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Abstract

The invention discloses a D matrix synthesizing method considering port cross link relations. The method includes the steps of firstly, building a port expansion D matrix of each unit; secondly, building comprehensive port incidence matrixes among the units; thirdly, building initial synthesizing D matrixes; fourthly, building ultimate synthesizing D matrixes; fifthly, diagnosing according to the synthesizing D matrixes. The complete method includes unit port D matrix building, comprehensive port incidence matrix building and D matrix synthesizing. By the method, product D matrixes can be synthesized on the basis of unit D matrixes, the process for synthesizing unit models into product models is omitted, when product models are huge, the method can be used for subentry searching, D matrixes of units are built and synthesized to obtain D matrixes of products, and search efficiency is increased.

Description

technical field [0001] The invention relates to a D matrix synthesis method considering port cross-linking relationship, and belongs to the technical field of testing. Background technique [0002] Fault-test correlation matrix (correlation matrix or D matrix for short), is a representation of the component unit failure and test correlation of the object under test, and it is the testability analysis and prediction of the product, as well as the construction of the fault dictionary and diagnosis strategy. The basis for implementing fault diagnosis. [0003] Assuming that the unit under test is composed of m components, each component failure is represented by F i Denotes that in primaries n tests T j The above reaction uses d ij express. According to the functional block diagram and signal flow analysis, the D matrix can be obtained: [0004] D m × n = ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/30
CPCG06F16/90
Inventor 石君友陈龙王晓天彭银银
Owner 北京恒兴易康科技有限公司