CN111709139B - Complex electronic equipment failure risk transfer relation analysis method based on model system - Google Patents
Complex electronic equipment failure risk transfer relation analysis method based on model system Download PDFInfo
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Abstract
The invention discloses a method for analyzing a transmission relationship of failure risks of complex electronic equipment based on a model system. The invention provides an analysis model and an automatic analysis algorithm for the failure risk transfer relationship of equipment, and realizes the automatic establishment of the failure risk transfer relationship between the upper layer and the lower layer of the composition units of subsystems, modules, components and the like of complex electronic equipment. Compared with the existing method for manually analyzing the failure risk transfer relationship of the complex electronic equipment, the method has the advantages that the problems of high complexity, poor efficiency, insufficient accuracy and the like caused by the fact that manual analysis is relied in the traditional failure risk transfer relationship analysis work are improved, and the failure risk transfer relationship analysis efficiency and the design quality are improved.
Description
Technical Field
The invention relates to the technical field of complex electronic equipment failure risk transfer relationship, in particular to a complex electronic equipment failure risk transfer relationship analysis method based on a model system.
Background
In the process of analyzing the failure risk transfer relationship of complex electronic equipment, analysis is often performed by depending on experience and subjective understanding of a design team, at present, an automatic failure risk transfer relationship analysis method which can be applied in actual engineering does not exist, only can be subjectively judged by an experienced research and development designer by depending on experience, failure mode analysis is often incomplete and difficult to understand, failure modes and failure risk transfer relationships are easily omitted, and analysis efficiency is low.
At present, the latest international product research and development mode based on a system engineering model, particularly for complex electronic equipment, describes a design scheme of the equipment by constructing a system engineering model system (a DoDAF model architecture or a Harmony SE model architecture). In the failure risk transmission relation analysis process of the complex electronic equipment, a simulation model for failure risk transmission relation analysis is built based on a system engineering model, failure characteristic parameters (related to failure environment inducement, failure symptoms, quantitative characterization parameters, detection methods, repair methods, life characteristics, repair and guarantee resources and the like) of each functional composition basic unit of the electronic equipment are described and characterized through a mathematical logic language, and automatic analysis and building of failure propagation paths among all composition units are achieved.
However, the failure risk transfer relationship analysis method for the complex electronic equipment is not mature at present, and the technical difficulties are mainly reflected in the following aspects:
a) The system engineering model system of the complex electronic equipment is large and complex, the DoDAF model architecture comprises 47 types of views of 6 types of viewpoints, the type of the Harmony SE views is not less than 15 types, and no clear conclusion is made on selecting which view models to carry out failure risk transfer relationship analysis;
b) The failure risk transfer relationship analysis model is characterized by what parameters, and how to establish the relationship between the failure mode of each level of component unit of the complex electronic equipment and the system engineering model of the complex electronic equipment;
c) On the basis of a system engineering model of complex electronic equipment, no method exists for automatically converting a selected view and automatically analyzing and constructing a risk transfer relationship.
Disclosure of Invention
Aiming at the defects in the prior art, the method for analyzing the failure risk transfer relationship of the complex electronic equipment based on the model system solves the problems that the efficiency of analyzing the failure risk transfer relationship of the complex electronic equipment is low and the analysis result is inaccurate.
In order to achieve the purpose of the invention, the invention adopts the technical scheme that: a method for analyzing a failure risk transfer relationship of a complex electronic device based on a model system comprises the following steps:
s1, establishing a system engineering model of complex electronic equipment;
s2, establishing a failure mode of each level of component unit of the complex electronic equipment;
s3, extracting multiple views of the system engineering model, and automatically converting the multiple views into failure risk transfer relation analysis models of the composition units of each hierarchy;
s4, setting equipment failure monitoring points, and activating failure modes of lower-layer composition units in sequence;
and S5, calling an automatic failure risk transfer relationship analysis algorithm, analyzing an failure risk transfer relationship analysis model, automatically analyzing and constructing a failure risk transfer relationship, sequentially analyzing the performance indexes of the monitoring points aiming at the activated failure mode of the lower-layer composition unit, and carrying out comparative analysis on the performance indexes and the performance indexes in the normal mode to form the failure risk transfer relationship.
Further: the method for constructing the system engineering model in the step S1 comprises the following steps: modeling was performed by the SysML System modeling language and the DoDAF modeling framework/HarmonySE modeling framework.
Further: the DoDAF modeling framework comprises an SV-1 system logic view, an SV-4 function view, an SV-10B working mode view and an SV-10C activity view; the Harmony SE modeling framework comprises an application diagram, an activity diagram, a state machine diagram, a block definition diagram and an inner module diagram.
Further: the multi-class views comprise a system function view, a system logic view, a system working mode view and a system activity view;
the system function view is an SV-4 view of a DoDAF framework or an application diagram of a HarmonySE modeling framework;
the system logic view is an SV-1 view of a DoDAF framework or a block definition diagram and an inner module diagram of a Harmony SE modeling framework;
the system working mode view is an SV-10B view of a DoDAF framework or a state machine diagram of a Harmony SE modeling framework;
the system activity view is an SV-10C view of the DoDAF framework or an activity diagram of the Harmony SE modeling framework.
Further: the specific steps of the step S3 are as follows: and extracting an SV-4 function view, an SV-1 logic view and an SV-10B working mode view of the system engineering model, analyzing the function implementation process of the system and the signal interaction relationship among the constituent units for the SV-4 function view, the SV-1 logic view and the SV-10B working mode view, and constructing a failure risk transfer relationship analysis model for forming each level of constituent units.
Further: the SV-4 function view in the failure risk transfer relationship analysis model comprises functions and performance indexes related to a failure mode, the SV-1 logic view comprises constituent units and ports related to the failure mode, and the SV-10B working mode view comprises the signal flow direction of equipment in the mode.
Further: the equipment failure monitoring point in the step S4 is used to monitor that a failure mode caused after the failure mode of the lower layer component occurs and is transmitted to the upper layer device is triggered.
The invention has the beneficial effects that:
(1) Aiming at complex electronic equipment, the invention defines the type of a system engineering model for automatically analyzing the failure risk transfer relationship, and only an SV-1 system logic view, an SV-4 function view and an SV-10B working mode view are required for definition, and other views are not required;
(2) The system engineering model used for developing the automatic analysis of the failure risk transfer relationship is a design model corresponding to a system design scheme, and a sextual designer does not need to independently establish a failure risk transfer relationship analysis model, so that the complicated design activities of the system designer and the sextual designer are reduced;
(3) The invention can realize automatic analysis and construction of failure risk transfer relationship based on a system engineering model of complex electronic equipment, and can improve the efficiency of failure risk transfer relationship analysis design by developing special analysis software and popularizing and applying;
(4) The automatic analysis and constructed failure risk transfer relationship provided by the invention has the characteristics of comprehensiveness and accuracy. Through a material object failure mode injection test and comparative analysis, the failure risk transfer relationship automatically analyzed and constructed by the method completely covers the failure path obtained by the failure mode injection test.
Drawings
FIG. 1 is a flow chart of the present invention;
FIG. 2 is a relational diagram of a failure risk transfer relational analysis model composition and a system engineering model in the present invention;
FIG. 3 is a schematic diagram of a failure risk transfer relationship analysis model constructed based on a system engineering model according to the present invention;
fig. 4 is a schematic diagram of the setting of the failure mode monitoring points in the present invention.
Detailed Description
The following description of the embodiments of the present invention is provided to facilitate the understanding of the present invention by those skilled in the art, but it should be understood that the present invention is not limited to the scope of the embodiments, and it will be apparent to those skilled in the art that various changes may be made without departing from the spirit and scope of the invention as defined and defined in the appended claims, and all matters produced by the invention using the inventive concept are protected.
As shown in fig. 1, a method for analyzing a transmission relationship between failure risks of complex electronic equipment based on a model system includes the following steps:
s1, establishing a system engineering model of complex electronic equipment;
aiming at complex electronic equipment, a SysML system modeling language is used for constructing a system engineering model of the equipment, and the adopted model architecture can adopt a DoDAF model architecture and can also adopt a Harmony SE model architecture. The DoDAF model architecture includes the following views: an SV-1 system logic view, an SV-4 function view, an SV-10B working mode view and an SV-10C active view. The HarmonySE model architecture includes an usage graph (UCD), an activity graph (ACT), a sequence graph (SD), a block definition graph (BDD), and an inside module graph (IBD), among others.
S2, establishing a failure mode of each level of component unit of the complex electronic equipment;
s3, extracting multiple views of the system engineering model, and automatically converting the multiple views into failure risk transfer relation analysis models of the composition units of each hierarchy;
the failure risk transfer relation analysis model takes a certain failure mode of the equipment as a core, and one failure mode corresponds to one failure risk transfer relation analysis model. The model comprises an SV-4 function view, an SV-1 logic view, an SV-10B working mode view, a failure mode detection point, and equipment function analysis models in normal and failure modes, which are related to the failure mode, and is shown in figure 2. Only the view in the system engineering model needs to be selected, and subsequent automatic analysis of the failure risk transfer relationship can be supported. If the Harmony SE model architecture is adopted, only three types of views of a Block Definition Diagram (BDD), an inner module diagram (IBD) and a state machine diagram are selected.
An SV-4 function view in the failure risk transfer relationship analysis model comprises functions and performance indexes related to a failure mode, an SV-1 logic view comprises constituent units and ports related to the failure mode, and an SV-10B working mode view comprises the signal flow direction of equipment in the mode.
The device function analysis models in the normal and failure modes in the failure risk transfer relationship analysis model are used for comprehensively describing the logical relationship between the failure mode and each view, and a signal flow direction simulation model is constructed on the basis for subsequent automatic analysis of the failure risk transfer relationship, as shown in fig. 3. The logical relations described by the model comprise the relation with SV-1 logical view composition units and ports and the relation of SV-10B working mode view equipment signal flow direction.
S4, setting equipment failure monitoring points, and activating failure modes of lower-layer composition units in sequence;
the equipment failure monitoring point is used for monitoring that a certain failure mode caused after a certain failure mode of the lower-layer component occurs and is transmitted to the upper-layer equipment is triggered. The position setting of the equipment failure monitoring point is only related to the SV-10B working mode view, and needs to be set at a signal outflow port, as shown in FIG. 4.
And S5, calling an automatic failure risk transfer relationship analysis algorithm, analyzing an failure risk transfer relationship analysis model, automatically analyzing and constructing a failure risk transfer relationship, sequentially analyzing the performance indexes of the monitoring points aiming at the activated failure mode of the lower-layer composition unit, and carrying out comparative analysis on the performance indexes and the performance indexes in the normal mode to form the failure risk transfer relationship. And (5) circularly adopting the calculation method in the step (S5) to calculate and obtain a failure risk transfer relation set of the whole system.
The invention provides an analysis model and an automatic analysis algorithm for the failure risk transfer relationship of equipment, and realizes the automatic establishment of the failure risk transfer relationship between the upper layer and the lower layer of the composition units of subsystems, modules, components and the like of complex electronic equipment. Compared with the existing method for manually analyzing the failure risk transfer relationship of the complex electronic equipment, the method has the advantages that the problems of high complexity, poor efficiency, insufficient accuracy and the like caused by manual analysis in the traditional failure risk transfer relationship analysis work are improved, and the failure risk transfer relationship analysis efficiency and the design quality are improved.
Claims (7)
1. A method for analyzing a transmission relationship of failure risks of complex electronic equipment based on a model system is characterized by comprising the following steps:
s1, establishing a system engineering model of complex electronic equipment;
s2, establishing a failure mode of each level of composition units of the complex electronic equipment;
s3, extracting multiple views of the system engineering model, and automatically converting the multiple views into failure risk transfer relation analysis models of the composition units of each hierarchy;
the extracted view only adopts SV-1 system logic view, SV-4 function view and SV-10B working mode view in a DoDAF modeling framework or only adopts a block definition diagram, an inner module diagram and a state machine diagram in a Harmony SE modeling framework;
s4, setting equipment failure monitoring points, and activating failure modes of lower-layer composition units in sequence;
and S5, calling an automatic failure risk transfer relationship analysis algorithm, analyzing a failure risk transfer relationship analysis model, automatically analyzing and constructing a failure risk transfer relationship, sequentially analyzing the performance indexes of the monitoring points aiming at the activated failure mode of the lower-layer composition unit, and performing comparative analysis on the performance indexes and the performance indexes in the normal mode to form a failure risk transfer relationship.
2. The method for analyzing the transmission relationship between the failure risks of the complex electronic equipment based on the model system as claimed in claim 1, wherein the method for constructing the system engineering model in the step S1 comprises: modeling was performed by the SysML System modeling language and the DoDAF modeling framework/HarmonySE modeling framework.
3. The model system based complex electronic equipment failure risk transfer relationship analysis method of claim 2, wherein the DoDAF modeling framework comprises an SV-1 system logic view, an SV-4 function view, an SV-10B working mode view and an SV-10C activity view; the Harmony SE modeling framework comprises an application diagram, an activity diagram, a state machine diagram, a block definition diagram and an inner module diagram.
4. The method for analyzing transmission relationship between failure risks of complex electronic equipment based on model system as claimed in claim 1, wherein the multiple types of views include a system function view, a system logic view, a system working mode view and a system activity view;
the system function view is an SV-4 view of a DoDAF framework or an use case diagram of a Harmony SE modeling framework;
the system logic view is an SV-1 view of a DoDAF framework or a block definition diagram and an inner module diagram of a Harmony SE modeling framework;
the system working mode view is an SV-10B view of a DoDAF framework or a state machine diagram of a Harmony SE modeling framework;
the system activity view is an SV-10C view of the DoDAF framework or an activity diagram of the Harmony SE modeling framework.
5. The method for analyzing transmission relationship of failure risks of complex electronic equipment based on model system as claimed in claim 1, wherein the specific steps of step S3 are: and extracting an SV-4 function view, an SV-1 logic view and an SV-10B working mode view of the system engineering model, analyzing a system function implementation process and a signal interaction relation among the constituent units for the SV-4 function view, the SV-1 logic view and the SV-10B working mode view, and constructing a failure risk transfer relation analysis model for forming the constituent units of each level.
6. The method for analyzing the transmission relationship between the failure risks of the complex electronic equipment based on the model system as recited in claim 5, wherein the SV-4 function view contains the function and performance indexes related to the failure mode, the SV-1 logic view contains the constituent elements and ports related to the failure mode, and the SV-10B operation mode view contains the signal flow direction of the equipment in the mode.
7. The method for analyzing transmission relationship of failure risks of complex electronic equipment based on model system as claimed in claim 1, wherein the equipment failure monitoring point in step S4 is used to monitor that after the failure mode of the lower layer component occurs, the failure mode caused after the failure mode is transmitted to the upper layer device is triggered.
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