CN106777816A - A kind of scene dynamics model management system - Google Patents
A kind of scene dynamics model management system Download PDFInfo
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- CN106777816A CN106777816A CN201710035599.6A CN201710035599A CN106777816A CN 106777816 A CN106777816 A CN 106777816A CN 201710035599 A CN201710035599 A CN 201710035599A CN 106777816 A CN106777816 A CN 106777816A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/30—Circuit design
- G06F30/32—Circuit design at the digital level
- G06F30/33—Design verification, e.g. functional simulation or model checking
- G06F30/3323—Design verification, e.g. functional simulation or model checking using formal methods, e.g. equivalence checking or property checking
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/30—Computing systems specially adapted for manufacturing
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Abstract
The present invention provides a kind of scene dynamics model management system, and it includes part when data conversion part, data storage section and operation.The scene dynamics model management system that the present invention is provided, because the event for occurring to be updated according to timing or data source of data conversion is triggered, therefore can ensure that the model used in virtual reality device is always newest in the case where certain time-delay is allowed.
Description
Technical field
The present invention provides the basic framework of data and information for the virtual reality applications of nuclear power relevant industries, and in particular to one
Plant the scene dynamics model management system based on virtual reality technology.
Background technology
Virtual reality is introduced in industrialized production as a kind of design that can effectively reduce with the means of experimental cost
Have for many years.Virtual reality technology can just provide designers with good validation-cross possibility in the design phase of product.
Designer may be referred to the result iteratively faster of virtual checking and update design content, and without waiting for very long and expensive prototype
Stage, so as to greatly save time and funds.
In nuclear power industry, the threedimensional model of full factory's scope is built and updated as the design cycle one by some projects
Individual conventional component, with solve it is multi-specialized between the device space interference etc. conventional two-dimensional drawing and calculated description it is reluctant
Problem.But, virtual reality related system is carried out in large scale equipment as similar nuclear power and Complex Industrial Systems complete
The application of scope essence, but has difficulties and obstacle always.The reason for one of them is important is exactly that current virtual reality all belongs to
In specific aim development and application, it is less able to provide the platform of wide usage, is to disconnect with the main flow of design, often results in existing
Commercial Application case shows that purpose is implemented more than actual effect.And cause the main cause of this problem generally all to be made with industrial design
Platform is more difficult with the technology that current virtual reality is used directly compatible relevant.It is exactly specifically that industrial design is used
Platform be mostly the professional moulding system based on curved surface or entity, and the rendering engine that virtual reality is used is substantially only
Polygonal solid can be supported.Traditional virtual reality applications, when this problem is tackled, are mostly in the application and development stage
Manual or semi-manual data conversion is carried out to design data, or even is modeled again.The shortcoming of this conversion be it will be apparent that
Especially in the very huge industry of the quantity of the such structures of nuclear power, system and part：
1) the manual or semi-manual change data amount of single is huge, and easily error.
2) data of static conversion cannot follow the frequent updating of design data and update.For example, in certain nuclear power projects,
Have been realized in issuing new full factory's threedimensional model daily, the delayed virtual reality model of version cannot be supported to design and test
Card work.
3) polygon data can only include the limited information with realistic meaning in itself, and more data information is difficult to close
Connection.
4) inexactness of polygon data is also unacceptable problem in commercial Application, in particular in application
In data are measured, when the high precision manipulation such as constraining.
The VR-Platform of efficient renewal cannot be carried out according to design main flow iteration speed, it is impossible to which association is except three-dimensional
More design informations outside model, the availability in industrial quarters is had a greatly reduced quality.And the void that accuracy to size cannot ensure
Intend real platform, its result effect for producing is also to ensure, safety, and design pipe are so paid much attention in nuclear power
The strict industry of control, then cannot apply completely.The present invention tries hard to, by a kind of dynamic management approach of model, realize designing a model
To virtual reality model it is extensive, fast and automatically change, and solve that virtual reality model polygon geometry is inaccurate to ask
Topic, is that essence application of the virtual reality technology in complex industrial is paved the way.
The content of the invention
The present invention in view of the shortcomings of the prior art, proposes a kind of scene dynamics model management system.
Scene dynamics model management system includes part when data conversion part, data storage section and operation；Wherein institute
State data conversion part to read the unprocessed form of design platform, can be used according to the curved surface for being used/entity handles engine
Format conversion data；Curved surface/solid data, polygon data and correlation are respectively with solid data file, polygon
The mode of file and relevant database tables of data is preserved；When virtual reality is run, system according to it is polygonal come source document
Part, summit sequence number, sideline sequence number and polygon sequence number inquire about the index information of primary entities.
Preferably, initial data is before solid data file is saved as, to summit, the border of former curved surface/physical model
Add index respectively with surface；Vertex list and polygon list are not only preserved in Polygon File, while also preserving border
Line drawing states list.
Preferably, in relevant database, summit, side in the index and Polygon File that will be added in entity file
Boundary, polygonal sequence number opening relationships table.
Preferably, entity engine develops when virtual reality applications call operation using dynamic link or process communication mode
The curved surface computing unit for coming, loads corresponding solid data, and carries out the related calculating of curved surface/entity on demand, and result is fed back
To virtual reality engine.
Preferably, curved surface/solid data is converted into polygon by treatment engine, and records polygon with former design data
Relation.
It is preferably based on virtual reality technology.
Compared with prior art, the invention has the advantages that：
1st, the scene dynamics model management system that the present invention is provided, because the generation of data conversion can be according to timing or number
The event updated according to source is triggered, therefore can ensure that the model used in virtual reality applications is allowing the situation of certain time-delay
Under it is always newest.
2nd, the scene dynamics model management system that the present invention is provided, using the teaching of the invention it is possible to provide virtual reality applications are to original design file
Mean camber/entity etc. parameterizes the high-precision access of solid and calculating.
3rd, the scene dynamics model management system that the present invention is provided, can associate the solid of abundant description information, Neng Goujia
The integration of strong virtual reality system and all kinds of design datas.
4. the scene dynamics model management system that the present invention is provided, can be in complete virtual reality system as data portion
Point component use, for every application of virtual reality provides from project data platform and it is capable of displaying live view, possess accurately
Dimension information, the solid that abundant description information can be associated, substantially increase data source in traditional virtual practical application when
Effect property, integrality, accuracy and accuracy, establish dynamic bridge between industrial design platform and virtual reality applications, are
Application of the virtual reality technology in Complex Industrial Systems design lays the first stone.
Brief description of the drawings
The scene dynamics model management system structure chart that Fig. 1 is provided for the present invention.
Fig. 2 is entity relationship diagram in the present invention.
Specific embodiment
It is below in conjunction with the accompanying drawings and specific real to enable the above objects, features and advantages of the present invention more obvious understandable
The present invention is further detailed explanation to apply mode.
The scene dynamics model management system that the present embodiment is provided is made up of three parts, and respectively conversion portion, data are deposited
Part when storage part and operation, system global structure figure is as shown in Figure 1.
The unprocessed form of design platform is read in data conversion part, according to the curved surface for being used/entity handles engine energy
Enough format conversion datas for using.Curved surface/solid data is converted into polygon by treatment engine, and records polygon and set with original
The relation for counting, graph of a relation is as shown in Figure 2.
Curved surface/solid data, polygon data and correlation respectively with solid data file, Polygon File and
The mode of relevant database tables of data is preserved.
Initial data before solid data file is saved as, divide by summit, border and surface to former curved surface/physical model
Tian Jia not index.Vertex list and polygon list are not only preserved in Polygon File, while also preserving boundary line description row
Table.In relevant database, summit, border, polygonal sequence in the index and Polygon File that will be added in entity file
Number opening relationships table.
When virtual reality is run, system is according to polygonal source files, summit sequence number, sideline sequence number and polygon
Sequence number inquires about the index information of primary entities.Reality when virtual reality applications call operation using dynamic link or process communication mode
The curved surface computing unit that body engine is evolved, loads corresponding solid data, and carry out the related meter of curved surface/entity on demand
Calculate, result is fed back into virtual reality engine.
So that the original design platform of data is PDS systems as an example, its main model file is DGN v7 lattice to the present embodiment
Formula, will be stored in a storage server using all design datas of concern, used as the signified actual platform number of Fig. 1-1.
According to storage.
Set up the service of a periodic duty, update status in the timing scan catalogue.Opened when model file updates
Dynamic data conversion process, DGN v7 forms are read out, and BREP forms are converted in the treatment engine of Fig. 1-2. shown, are deposited
Store up in Fig. 1-3. shown curved surface/solid data is stored.Original sequence number using summit, side and face in BREP forms is made
It is index.Trigonometric ratio treatment is performed simultaneously, and not only opposite carries out trigonometric ratio, also to border carries out polygonization treatment, and records
Summit, polygon edge and triangular form list, storage is in Fig. 1-4. shown polygon model is stored.By index number together with
Entity file filename record in relevant database (Fig. 1-5.), by Polygon File filename and wherein each model block
Record write-in relevant database (Fig. 1-5.), the polygonization result of triangularization and border according to face is in relation number
According to the pass of write-in source entity part in storehouse (Fig. 1-5.) and vertex sequence, sequences of polygons and polygon edge in Polygon File
Connection relation.
Using Virtools 5.0 as the engine (Fig. 1-6.) of virtual reality system, single process is used to run bent
The curved surface computing unit (Fig. 1-7.) of face/entity handles engine implementation, row data communication is entered using UDP modes.Virtools leads to
Crossing ray asks friendship mode to find need model block to be processed, obtains model name (information containing source files) and face sequence number.Make
Curved surface processing unit, processing unit inquiry database is submitted to retrieve the model block of the source this document with both information
Paragraph of the middle scope comprising the triangle sequence number.And the BREP files of original correlation are found, this document is loaded, and according to searching before
Entity index location entity element obtained by rope is calculated.Result is returned into Virtools and completes whole operation process.
As shown in figure 1, three parts are constituted when system is by data conversion, data storage and operation, data conversion is in design
Frequently operation is always newest to ensure the result after conversion when data update.Data storage section will change the result for finishing
Permanence is stored.Part and virtual reality system synthetic operation during operation, complex process application are asked to curved surface/physical operation
Ask.
Compared with prior art, the present embodiment has the advantages that：
1st, the present embodiment provide scene dynamics model management system, due to data conversion generation can according to timing or
The event triggering that data source updates, therefore can ensure that the model used in virtual reality applications is allowing the feelings of certain time-delay
It is always newest under condition.
2nd, the scene dynamics model management system that the present embodiment is provided, using the teaching of the invention it is possible to provide virtual reality applications are to original design text
Part mean camber/entity etc. parameterizes the high-precision access of solid and calculating.
3rd, the scene dynamics model management system that the present invention is provided, can associate the solid of abundant description information, Neng Goujia
The integration of strong virtual reality system and all kinds of design datas.
4. the scene dynamics model management system that the present invention is provided, can be in complete virtual reality system as data portion
Point component use, for every application of virtual reality provides from project data platform and it is capable of displaying live view, possess accurately
Dimension information, the solid that abundant description information can be associated, substantially increase data source in traditional virtual practical application when
Effect property, integrality, accuracy and accuracy, establish dynamic bridge between industrial design platform and virtual reality applications, are
Application of the virtual reality technology in Complex Industrial Systems design lays the first stone.
Each embodiment is described by the way of progressive in this specification, and what each embodiment was stressed is and other
The difference of embodiment, between each embodiment identical similar portion mutually referring to.For system disclosed in embodiment
For, due to corresponding to the method disclosed in Example, so description is fairly simple, related part is referring to method part illustration
.
Those skilled in the art can realize described function to each specific application using distinct methods, but
It is this realization it is not considered that beyond the scope of this invention.
Obviously, those skilled in the art can carry out various changes and modification without deviating from spirit of the invention to invention
And scope.So, if these modifications of the invention and modification belong to the claims in the present invention and its equivalent technologies scope it
Interior, then the present invention is also intended to including including these changes and modification.
Claims (6)
1. a kind of scene dynamics model management system, it is characterised in that including data conversion part, data storage section and operation
When part；Wherein described data conversion unit point reads the unprocessed form of design platform, according to the curved surface/entity handles for being used
The format conversion data that engine can be used；Curved surface/solid data, polygon data and correlation are respectively with solid data
The mode of file, Polygon File and database data table is preserved；When virtual reality device runs, system is according to polygon
Source files, summit sequence number, sideline sequence number and polygon sequence number inquire about the index information of primary entities.
2. scene dynamics model management system according to claim 1, it is characterised in that initial data is right before preservation
Index is added on the summit of former curved surface/physical model, border and surface respectively；Not only preserved in Polygon File vertex list and
Polygon list, while also preserving boundary line describes list.
3. scene dynamics model management system according to claim 1, it is characterised in that in database, by entity text
The index added in part and summit, border, polygonal sequence number opening relationships table in Polygon File.
4. scene dynamics model management system according to claim 1, it is characterised in that virtual reality device uses dynamic
The curved surface computing unit that entity engine is evolved when operation is called in link or communication, loads corresponding solid data, and on demand
The related calculating of curved surface/entity is carried out, result is fed back into virtual reality engine.
5. scene dynamics model management system according to claim 1, it is characterised in that by treatment engine by curved surface/reality
Volume data is converted into polygon, and records the relation of polygon and former design data.
6. scene dynamics model management system according to claim 1, it is characterised in that based on virtual reality technology.
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| CN201710035599.6A CN106777816B (en) | 2017-01-18 | 2017-01-18 | Scene dynamic model management system |
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| CN201710035599.6A CN106777816B (en) | 2017-01-18 | 2017-01-18 | Scene dynamic model management system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107610217A (en) * | 2017-08-22 | 2018-01-19 | 中广核工程有限公司 | A kind of nuclear power generating equipment virtually identifies display systems and method |
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Address after: No. 29 Hong Cao Road, Xuhui District, Shanghai Applicant after: Shanghai Nuclear Engineering Research and Design Institute Co.,Ltd. Address before: No. 29 Hong Cao Road, Xuhui District, Shanghai Applicant before: SHANGHAI NUCLEAR ENGINEERING RESEARCH & DESIGN INSTITUTE |
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