CN110162811A - Testability modeling and analysis method based on fault diagnosis - Google Patents
Testability modeling and analysis method based on fault diagnosis Download PDFInfo
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- G06F30/32—Circuit design at the digital level
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Abstract
The present invention relates to testability technical fields, disclose a kind of testability modeling and analysis method based on fault diagnosis.Wherein this method comprises: obtaining failure mode information；The association analysis between fault mode and corresponding test information is carried out based on the failure mode information, modeling object relevant information, with normalized number evidence needed for generating testability modeling；By normalized number generated according to binding respectively with corresponding model structure, construction obtains testability model；D matrix is generated based on the testability model；And testability analysis and fault diagnosis are carried out based on the D matrix.A kind of it be easy to apply, standardize and the testability analysis method of strong operability realizes Precise Diagnosis and the positioning of failure thus, it is possible to provides.
Description
Technical field
The present invention relates to testability technical fields more particularly to a kind of based on the testability modeling of fault diagnosis and analysis side
Method.
Background technique
Existing testability analysis method can be divided into two kinds: 1) based on artificial engineering common method, such as GJB2547 institute
The weighted scoring method provided, the disadvantages of this method is that artificial method of weighting is inflexible, particularly with complex large-sized system
System not can be carried out scientific evaluation；2) based on the analysis method of model, this method can accurately express real system, strong flexibility.
For current complicated flight weapon system, model-based testing analysis method is more able to satisfy the requirement of fault diagnosis.
However, for model-based testing modeling and the discussion of analysis method in Practical Project in currently available technology
Operation difficulty is big in, not yet formed specification, strong operability, can guide conventional design personnel carry out testability build
The method that die worker makees.
Summary of the invention
It is an object of the invention to overcome the shortage of prior art, provide a kind of testability modeling based on fault diagnosis and
Analysis method is able to solve above-mentioned the problems of the prior art.
Technical solution of the invention: a kind of testability modeling and analysis method based on fault diagnosis, this method packet
It includes:
Obtain failure mode information；
It is carried out between fault mode and corresponding test information based on the failure mode information, modeling object relevant information
Association analysis, with normalized number evidence needed for generating testability modeling；
By normalized number generated according to binding respectively with corresponding model structure, construction obtains testability model；
D matrix is generated based on the testability model；And
Testability analysis and fault diagnosis are carried out based on the D matrix.
Preferably, obtain failure mode information may include: by the relevant information that FMECA is reported carry out analysis and really
Recognize acquisition failure mode information.
Preferably, the relevant information of FMECA report is analyzed and is confirmed including being analyzed to identify to fault mode collection
With being analyzed to identify for fault mode property content.
Preferably, the normalized number is according to including at least one of following: the port of the modeling object and external interface
Relationship, fault mode and the relationship of the port of the modeling object and the corresponding test information and the modeling object
The relationship of port.
Preferably, by normalized number generated according to being bound respectively with corresponding model structure, construct and tested
Property model includes:
In the model structure, the relationship of port and external interface based on the modeling object establishes top-level module packet
The connection relationship between each functional unit block contained；
In the model structure, the relationship based on fault mode and the port of the modeling object establish bottom failure with
The connection relationship of LRU end mouth；And
Fault mode and the signal in the project signal library that pre-establishes are associated, the corresponding test information is based on
Test and test point are established with each layer of the relationship of the port of the modeling object in the model structure.
It is preferably based on the D matrix progress testability analysis and fault diagnosis includes:
Analysis identification is carried out to the fault detection digital quantity result obtained in the modeling object；
Discrete normalized is carried out to the fault detection digital quantity result after analysis identification；
Each arrange of fault detection digital quantity result and the D matrix after discrete normalized is compared, according to
Comparison result determine the modeling object whether failure.
Through the above technical solutions, failure can be carried out based on acquired failure mode information modeling object relevant information
Association analysis between mode and corresponding test information then can be with normalized number evidence needed for generating testability modeling
Normalized number is obtained into testability model according to binding construction is carried out with corresponding model structure respectively, it can be with according to testability model
D matrix is generated, so that testability analysis and fault diagnosis can be carried out based on D matrix.It is easy to answer thus, it is possible to provide one kind
With, specification and strong operability testability analysis method realize failure Precise Diagnosis and positioning.
Detailed description of the invention
Included attached drawing is used to provide to be further understood from the embodiment of the present invention, and which constitute one of specification
Point, for illustrating the embodiment of the present invention, and come together to illustrate the principle of the present invention with verbal description.It should be evident that below
Attached drawing in description is only some embodiments of the present invention, for those of ordinary skill in the art, is not paying creation
Property labour under the premise of, be also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of process of testability modeling and analysis method based on fault diagnosis provided in an embodiment of the present invention
Figure.
Specific embodiment
Specific embodiments of the present invention are described in detail below in conjunction with attached drawing.In the following description, for solution
Purpose and not restrictive is released, elaborates detail, to help to be apparent from the present invention.However, to those skilled in the art
It is readily apparent that the present invention can also be practiced in the other embodiments departing from these details for member.
It should be noted that only showing in the accompanying drawings in order to avoid having obscured the present invention because of unnecessary details
Gone out with closely related device structure and/or processing step according to the solution of the present invention, and be omitted with relationship of the present invention not
Big other details.
Fig. 1 is a kind of process of testability modeling and analysis method based on fault diagnosis provided in an embodiment of the present invention
Figure.
As shown in Figure 1, the embodiment of the invention provides a kind of testability modeling and analysis method based on fault diagnosis, it should
Method may include:
S100 obtains failure mode information；
S102 carries out fault mode and corresponding test information based on the failure mode information, modeling object relevant information
Between association analysis, with normalized number evidence needed for generating testability modeling；
S104, by normalized number generated according to binding respectively with corresponding model structure, construction obtains testability
Model；
S106 generates D matrix based on the testability model；And
S108 carries out testability analysis and fault diagnosis based on the D matrix.
Through the above technical solutions, failure can be carried out based on acquired failure mode information modeling object relevant information
Association analysis between mode and corresponding test information then can be with normalized number evidence needed for generating testability modeling
Normalized number is obtained into testability model according to binding construction is carried out with corresponding model structure respectively, it can be with according to testability model
D matrix is generated, so that testability analysis and fault diagnosis can be carried out based on D matrix.It is easy to answer thus, it is possible to provide one kind
With, specification and strong operability testability analysis method realize failure Precise Diagnosis and positioning.
Wherein, modeling object relevant information for example may include the schematic diagram, wiring diagram and specification of modeling object.Modeling
Object may include various products, equipment and guided missile etc..
According to an embodiment of the present invention, failure mode information is obtained in S100 may include: by reporting FMECA
Acquisition failure mode information is analyzed and confirmed to relevant information.
Wherein, the failure mode information is the most basic information of testability modeling.FMECA report can pass through reliability
Analysis obtains, and specific analysis method can be carried out using existing mode, and in order not to obscure the present invention, the present invention is herein no longer
It repeats.
According to an embodiment of the present invention, analysis is carried out to the relevant information of FMECA report and confirmation includes to failure mould
Being analyzed to identify for formula collection and being analyzed to identify for fault mode property content.
Wherein, part attribute type and content that modeling analysis requirement is met in FMECA are directly quoted；It can to type
It carries out improving modification with, the not available attribute information of content, the attribute type and its content that lack is supplemented.Table 1 is face
FME (C) the A analytical table designed to testability.
Table 1
The table confirms that the failure mode information data of formation, can using iterative modifications and after passing through examination by analysis
Using the uniform data source as modeling, the development and completion of modeling analysis work are supported.
According to an embodiment of the present invention, the normalized number is according to including at least one of following: the modeling object
Port and the relationship of external interface, fault mode and the modeling object port relationship and the corresponding test information and
The relationship of the port of the modeling object.
Based on table 1 comb between system-level (System), each subsystem grade (Subsystem) and its with it is system-level between,
Between each module (LRU) and its between subsystem grade, between each component (SRU) and its pair between online replaceable units
It is external can to form system-level external interface relation table, each subsystem grade external interface relation table and each module for external tapping relationship
Interface relationship table.For example, table 2 is external interface relation table, table 3 is failure mode information table, and table 4 is test information table.
Table 2
In table 2, ← indicate that connection unit is inputted to the port of this unit, → indicate port of the connection unit to this unit
Output.
Carry out the analysis and combing of fault mode and corresponding test information for modules/component (LRU/SRU), it can be with
Obtain table 2.
Table 3
Table 4
In specific analytic process, each corresponding function port involved in table 4 is the function end with specific name
Mouthful.
According to an embodiment of the present invention, in S104 by normalized number generated according to respectively with corresponding model structure into
Row binding, construction obtain testability model and may include:
In the model structure, the relationship of port and external interface based on the modeling object establishes top-level module packet
The connection relationship between each functional unit block contained；
For example, it can be based on external interface relation table (being shown in Table 2), establishes the functional unit block that top-level module includes
Between connection relationship: establish the connection between internal element module and upper one layer of module；Establish same level unit module and list
Connection between element module；Establish unit module and with door, connection relationship between switch module.
In the model structure, the relationship based on fault mode and the port of the modeling object establish bottom failure with
The connection relationship of LRU end mouth；
For example, fault mode can be carried out according to failure mode information table (being shown in Table 3) in the bottom of model structure
The modeling of illustraton of model, specific steps for example can be with are as follows: according to " local influence " relationship of fault mode, establish fault mode and end
The connection of mouth；According to " local influence " relationship of fault mode, the connection between same module failure mode is established；It is needing
When, switch is arranged in the different working modes according to locating for fault mode between fault mode.Also, between fault mode
Setting and door can be used for analysing whether that multiple fault mode generations just will affect certain disabler.
Fault mode and the signal in the project signal library that pre-establishes are associated, the corresponding test information is based on
Test and test point are established with each layer of the relationship of the port of the modeling object in the model structure.
For example, for fault mode to be associated with signal, distribution signal is to indicate to lead when the fault mode occurs
The case where causing the phenomenon of the failure generated, or will lead to the variation of perceptible signal parameter.It, can be by failure mould according to this definition
" phenomenon of the failure " or " Parameters variation situation ", i.e., be associated by formula distribution signal corresponding to its.
For example, the specific steps that each layer of structural model figure establishes test and test point can be with are as follows:
1) test point is established
According to the test information table in emulation data preparation chapters and sections, test point is created, and is established and is tested according to test position
The connection (being realized by the connecting line in model) of point and each unit module or fault mode.
2) test is established
Test item is added in test point, and according to test information table (being shown in Table 4) filled out information, is set for the test item
Set the information such as test method, test grades, testing cost and time.
3) associated signal is tested in setting
It (if not distributing signal, is pressed according to information, the function signal that distributing the test can measure in test information table
Fault mode that the test can measure is determined according to the accessibility of illustraton of model).
Wherein it is possible to add items signal library in the following way: fault mode and function port in reference model, it will
The relevant all signal names of model are successively added in project signal library.Preferably, in project signal library signal total quantity
Not less than the total quantity of fault modes all in model.
In addition, for established testability model middle port setting, signal circulation, fault mode, test information etc. into
Row complete analysis combing comprehensively, can modify and confirm to testability model, it is ensured that model is authentic and valid.
According to an embodiment of the present invention, testability analysis is carried out based on the D matrix in S108 and fault diagnosis can
To include:
Analysis identification is carried out to the fault detection digital quantity result obtained in the modeling object, for example, being divided into
The digital quantity of each physical quantity can be corresponded to；
Discrete normalized is carried out to the fault detection digital quantity result after analysis identification；
Each arrange of fault detection digital quantity result and the D matrix after discrete normalized is compared, according to
Comparison result determine the modeling object whether failure.
Wherein, the i-th column of D matrix are corresponded with physical quantity i.
It is, if fault detection digital quantity result and each column of the D matrix after discrete normalized compare
Success, then it is assumed that there are fault point, otherwise need manually to further determine that failure.
(lowest level is only needed to be divided to LRU grades in weaponry modeling) to this hair by taking certain type weaponry as an example below
Bright above-mentioned method is illustrated:
A) FMECA report and the relevant design file, schematic diagram of the function (example of the weapon system-of-systems and subsystem are collected
Such as, schematic diagram, line map, specification etc.)；
B) level of the system is combed according to weaponry function；
C) comb between the weapon system-of-systems grade, each subsystem grade and each subsystem and it is system-level between, each module it
Between and each module and subsystem grade, system-level external interface relationship, and fill in table 1, table 2, table 3 respectively；
D) project is created in testability modeling and analysis software, table 4 is filled according to FMECA report, is directed into project；
E) system level combed according to (b), builds each layer module in modeling software interface；
F) the function port of each module is combed, and fills in relevant parameter, and establish the function of each intermodule by port line
It can flow relation；
G) relationship between bottom LRU and fault mode is established；
H) signal library of system is established；
I) signal in signal library is associated with fault mode；
J) according to the setting of weaponry test point in practice and test, measuring point is established in the corresponding position of model and is surveyed
Examination；
K) signal in signal library is associated with test point, test；
L) so far, testability model construction is completed, can normal use after verifying；
M) by the quantification and qualification function of testability modeling software, carry out system and each level testability are commented
Valence exports testability analysis result；
N) D matrix is generated and exported, fault dictionary is can be used as with transformation by simplified, directly uses to fault diagnosis.
It will be appreciated by those skilled in the art that examples detailed above is only exemplary, it is not intended to limit the present invention.
From above-described embodiment as can be seen that using of the present invention based on the testability modeling of fault diagnosis and analysis side
Method carries out the testability design of product, it can be achieved that such as Precise Diagnosis of guided missile system failure and positioning, reduces fault detection
And isolation time, test equipment and pit crew are reduced, maintenance efficiency is improved, reduces maintenance cost.Reduce missile armament
System Life Cycle Cost.Combat readiness, mlssion success of cruising missile etc. can also be promoted simultaneously.Also, the party
Method is applicable not only to the testability design analysis work of guided missile, is also applied to other weapon dresses such as unmanned plane, ground installation
In the work of standby model.
As above it describes for a kind of embodiment and/or the feature that shows can be in a manner of same or similar at one or more
It is used in a number of other embodiments, and/or combines or substitute the feature in other embodiments with the feature in other embodiments
It uses.
It should be emphasized that term "comprises/comprising" refers to the presence of feature, one integral piece, step or component when using herein, but simultaneously
It is not excluded for the presence or additional of one or more other features, one integral piece, step, component or combinations thereof.
The method more than present invention can be by hardware realization, can also be by combination of hardware software realization.The present invention relates to this
The computer-readable program of sample can be such that the logical block realizes described above when the program is performed by logical block
Device or component parts, or the logical block is made to realize various method or steps described above.The invention further relates to for depositing
Store up the storage medium of procedure above, such as hard disk, disk, CD, DVD, flash memory.
The many features and advantage of these embodiments are clear according to the detailed description, therefore appended claims are intended to
Cover all these feature and advantage of these embodiments fallen into its true spirit and range.Further, since this field
Technical staff is readily apparent that many modifications and changes, therefore is not meant to for the embodiment of the present invention to be limited to illustrated and description essence
Really structurally and operationally, but all suitable modifications and the equivalent fallen within the scope of its can be covered.
Unspecified part of the present invention is known to the skilled person technology.
Claims (6)
1. a kind of testability modeling and analysis method based on fault diagnosis, which is characterized in that this method comprises:
Obtain failure mode information；
Being associated between fault mode and corresponding test information is carried out based on the failure mode information, modeling object relevant information
Property analysis, with normalized number evidence needed for generating testability modeling；
By normalized number generated according to binding respectively with corresponding model structure, construction obtains testability model；
D matrix is generated based on the testability model；And
Testability analysis and fault diagnosis are carried out based on the D matrix.
2. the method according to claim 1, wherein obtaining failure mode information may include: by FMECA
Acquisition failure mode information is analyzed and confirmed to the relevant information of report.
3. according to the method described in claim 2, it is characterized in that, the relevant information of FMECA report being analyzed and being confirmed
Including to being analyzed to identify for fault mode collection and being analyzed to identify for fault mode property content.
4. the method according to claim 1, wherein the normalized number is according to including at least one of following: institute
State the relationship and the phase of the port of the port of modeling object and the relationship of external interface, fault mode and the modeling object
The relationship of the port of information and the modeling object should be tested.
5. according to the method described in claim 4, it is characterized in that, by normalized number generated according to respectively with corresponding model
Structure is bound, constructs to obtain testability model
In the model structure, the relationship of port and external interface based on the modeling object establishes what top-level module included
Connection relationship between each functional unit block；
In the model structure, the relationship based on fault mode and the port of the modeling object establishes bottom failure and LRU
The connection relationship of port；And
Fault mode and the signal in the project signal library that pre-establishes are associated, the corresponding test information and institute are based on
It states each layer of the relationship of the port of modeling object in the model structure and establishes test and test point.
6. the method according to claim 1, wherein carrying out testability analysis and failure based on the D matrix
Diagnosis includes:
Analysis identification is carried out to the fault detection digital quantity result obtained in the modeling object；
Discrete normalized is carried out to the fault detection digital quantity result after analysis identification；
Each column of fault detection digital quantity result and the D matrix after discrete normalized are compared, according to comparing
As a result determine the modeling object whether failure.
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| CN110888011A (en) * | 2019-12-04 | 2020-03-17 | 中国直升机设计研究所 | In-situ test method and test device based on testability modeling |
| CN111058984A (en) * | 2019-11-20 | 2020-04-24 | 中国人民武装警察部队工程大学 | Fuel supply system testability modeling method based on associated directed graph |
| CN111061293A (en) * | 2019-11-12 | 2020-04-24 | 中国运载火箭技术研究院 | Multi-parameter coupled aircraft fault positioning method, aircraft and storage medium |
| CN111913953A (en) * | 2020-06-16 | 2020-11-10 | 北京旋极信息技术股份有限公司 | Diagnostic database generation method and device |
| CN112035996A (en) * | 2020-05-15 | 2020-12-04 | 中国人民解放军32181部队 | Equipment testability integrated design and evaluation system |
| CN112532331A (en) * | 2020-12-12 | 2021-03-19 | 江西洪都航空工业集团有限责任公司 | Engineering method for obtaining testability modeling test information |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111061293A (en) * | 2019-11-12 | 2020-04-24 | 中国运载火箭技术研究院 | Multi-parameter coupled aircraft fault positioning method, aircraft and storage medium |
| CN111061293B (en) * | 2019-11-12 | 2023-11-17 | 中国运载火箭技术研究院 | Multi-parameter coupled aircraft fault positioning method, aircraft and storage medium |
| CN111058984A (en) * | 2019-11-20 | 2020-04-24 | 中国人民武装警察部队工程大学 | Fuel supply system testability modeling method based on associated directed graph |
| CN110888011A (en) * | 2019-12-04 | 2020-03-17 | 中国直升机设计研究所 | In-situ test method and test device based on testability modeling |
| CN110888011B (en) * | 2019-12-04 | 2022-03-08 | 中国直升机设计研究所 | In-situ test method and test device based on testability modeling |
| CN112035996A (en) * | 2020-05-15 | 2020-12-04 | 中国人民解放军32181部队 | Equipment testability integrated design and evaluation system |
| CN111913953A (en) * | 2020-06-16 | 2020-11-10 | 北京旋极信息技术股份有限公司 | Diagnostic database generation method and device |
| CN111913953B (en) * | 2020-06-16 | 2024-05-07 | 北京旋极信息技术股份有限公司 | Diagnostic database generation method and device |
| CN112532331A (en) * | 2020-12-12 | 2021-03-19 | 江西洪都航空工业集团有限责任公司 | Engineering method for obtaining testability modeling test information |
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