CN106649444A - Method of CAE data base to obtain CAD data and device of obtaining CAD data - Google Patents
Method of CAE data base to obtain CAD data and device of obtaining CAD data Download PDFInfo
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- CN106649444A CN106649444A CN201610831589.9A CN201610831589A CN106649444A CN 106649444 A CN106649444 A CN 106649444A CN 201610831589 A CN201610831589 A CN 201610831589A CN 106649444 A CN106649444 A CN 106649444A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/28—Databases characterised by their database models, e.g. relational or object models
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
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Abstract
The invention discloses a method of CAE data base to obtain CAD data and a device of obtaining CAD data. The method of CAE data base to obtain CAD data includes the following steps. Firstly, according to the CAD data needed by the CAE data base, information of bill of material (BOM) of the CAD data is obtained from the PDM data base. Then, according to the information of bill of material, whether the BOM exists in the CAE data base should be retrieved. Thirdly, on the one hand, when there's no BOM existing in the CAE data base, BOM should be established in the CAE data base and the CAD data should be written in a designated spot of the established BOM; on the other hand, when there's BOM existing in the CAE data base, whether the CAD data is in the designated spot of the BOM should be judged. In the second situation, if there's no CAD data in the designated spot of the BOM, CAD data should be written in the designated spot of the BOM. Acquiring CAE data base from PDM data base can be achieved by the method of CAE data base to obtain CAD data and the device of obtaining CAD data. The method of CAE data base to obtain CAD data and the device of obtaining CAD data can also effectively store the needed CAD data.
Description
Technical field
The present invention relates to database technical field, more particularly to a kind of computer-aided engineering CAE Database Systems acquisition
The method and device of computer aided design cad data.
Background technology
Currently, CAE Database Systems are in evolution, and product data management PDM Database Systems relative into
Ripe, CAD data is managed typically all in PDM Database Systems.The mode of CAE database system management data mainly has two kinds,
One kind is directly to manage CAE data in PDM Database Systems, and another kind is managed by independent CAE Database Systems
Reason.For first kind of way, because CAD data and CAE data are managed in same system, can adopt and manage in a like fashion
Reason data, and not there are problems that CAD data is reviewed with the version of CAE data；For the mode of second management data, considering
When CAD data reviews problem with the version of CAE data, need to pass through PDM Database Systems and CAE Database Systems
Certain information is associated, and realizes retrospective.Meanwhile, CAD data can not be rested on for a long time in CAE systems, to lift enterprise
The uniqueness of data in the range of industry.
There is presently no can realize that CAE Database Systems obtain and can effectively store CAD data from PDM Database Systems
Method.Therefore, CAE Database Systems effectively can not obtain CAD data from PDM Database Systems and store CAD data.
The content of the invention
In order to solve above-mentioned technical problem, the present invention provide a kind of method that CAE Database Systems obtain CAD data and
Device, to solve the problems, such as that CAE Database Systems can not obtain and effectively store CAD data from PDM Database Systems.
Specifically, including following technical scheme：
The invention provides a kind of method that CAE Database Systems obtain CAD data, including：
According to the CAD data that CAE Database Systems need to obtain, from PDM Database Systems the CAD data is obtained
The information of BOM；
According to the information of the BOM, retrieve the CAE Database Systems and whether there is the BOM；
There is no the BOM when the CAE Database Systems are retrieved, then create in the CAE Database Systems
BOM, and the CAD data is write into the specified location of the BOM for creating；
There is the BOM when the CAE Database Systems are retrieved, then the specified location for judging the BOM whether there is
The CAD data, if the specified location of the BOM does not have the CAD data, writes the BOM's by the CAD data
Specified location.
Selectively, the information of the BOM includes head node ID and version number.
Selectively, methods described also includes：
For each part of the CAD data, judge whether the CAE Database Systems have had required specification
Grid；
When the CAE Database Systems do not have the grid of required specification, then grid is carried out to the part of the CAD data
Divide, and grid is write the specified location of the BOM of the BOM or described establishments；
If the CAE Database Systems have the grid of the required specification, the grid of the required specification of presence is judged
Whether can reuse；
If the grid of the required specification of the presence can be reused, the grid of the required specification of the presence is quoted；
If the grid of the required specification of the presence cannot be reused, grid stroke is carried out to the part of the CAD data
Point, and grid is write the specified location of the BOM of the BOM or described establishments.
Selectively, methods described also includes：
Stress and strain model is carried out to each part of the CAD data, and grid is write into the BOM or described establishments
The specified location of BOM.
Selectively, each part to the CAD data carry out grid process after, methods described is also
Including：
Setting CAD data cleaning condition, in the specified location of the BOM for removing the BOM or described establishments the CAD is met
The CAD data of data scrubbing condition.
Present invention also offers a kind of CAE Database Systems obtain the device of CAD data, including：
Acquisition module, for the CAD data for needing to obtain according to CAE Database Systems, from PDM Database Systems institute is obtained
State the information of the BOM of CAD data；
Retrieval module, for according to the information of the BOM, retrieving the CAE Database Systems BOM is whether there is；
, there is no the BOM for the CAE Database Systems ought to be retrieved, then in the CAE databases in creation module
BOM is created in system, and the CAD data is write into the specified location of the BOM for creating；
, there is the BOM in writing module, then judge specifying for the BOM for retrieving the CAE Database Systems
Position whether there is the CAD data, if the specified location of the BOM does not have the CAD data, by the CAD data
Write the specified location of the BOM.
Selectively, the information of the BOM that the acquisition module is obtained includes head node ID and version number.
Selectively, the processing module specifically for：
For each part of the CAD data, judge whether the CAE Database Systems have had required specification
Grid；
When the CAE Database Systems do not have the grid of required specification, then grid is carried out to the part of the CAD data
Divide, and grid is write the specified location of the BOM of the BOM or described establishments；
If the CAE Database Systems have the grid of the required specification, the grid of the required specification of presence is judged
Whether can reuse；
If the grid of the required specification of the presence can be reused, the grid of the required specification of the presence is quoted；
If the grid of the required specification of the presence cannot be reused, grid stroke is carried out to the part of the CAD data
Point, and grid is write the specified location of the BOM of the BOM or described establishments.
Selectively, the processing module specifically for：
Stress and strain model is carried out to each part of the CAD data, and grid is write into the BOM or described establishments
The specified location of BOM.
Selectively, described device also includes removing module, for setting CAD data cleaning condition, and removes the BOM
Or meet the CAD data that the CAD data clears up condition in the specified location of the BOM of the establishment.
The beneficial effect of technical scheme provided in an embodiment of the present invention：
The CAE Database Systems that the present invention is provided obtain the method and device of CAD data, by needing from PDM data
The BOM information of the CAD data that storehouse system is obtained is matched, and is judged with the presence or absence of the BOM in CAE Database Systems, when CAE numbers
During according to there is no the BOM in the system of storehouse, BOM is created, and CAD data is written to the specified location of the BOM of establishment；When CAE numbers
During according to there is the BOM in the system of storehouse, the specified location for judging the BOM for existing whether there is CAD data, if the specific bit of the BOM
Put and do not exist CAD data, then CAD data is write the specified location of the BOM of the presence, so as to realize CAE Database Systems from
PDM Database Systems are obtained and effectively store required CAD data, and the repetition that can avoid CAD data in CAE Database Systems is deposited
Storage.
The CAE Database Systems that the present invention is provided obtain the method and device of CAD data, can be with CAE data base sets
System is obtained and stored after the BOM information of CAD data, removes the CAD data, with the range of guarantee company CAD data it is unique
Property.
Description of the drawings
Technical scheme in order to be illustrated more clearly that the embodiment of the present invention, below will be to making needed for embodiment description
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for
For those of ordinary skill in the art, on the premise of not paying creative work, can be obtaining other according to these accompanying drawings
Accompanying drawing.
Accompanying drawing 1 is the flow chart of a kind of method that CAE Database Systems obtain CAD data in the embodiment of the present invention；
Accompanying drawing 2 is a kind of block diagram of the device that CAE Database Systems obtain CAD data in the embodiment of the present invention.
Specific embodiment
To make technical scheme and advantage clearer, below in conjunction with accompanying drawing embodiment of the present invention is made into
One step ground is described in detail.
Embodiment one
A kind of method that CAE Database Systems obtain CAD data is present embodiments provided, as shown in figure 1, including step
S101, S102, S103 and S104.Each step is specifically introduced below.
Step S101：According to the CAD data that CAE Database Systems need to obtain, obtaining from PDM Database Systems should
The information of the BOM of CAD data.
The process of the information of the BOM of CAD data is obtained, can be PDM Database Systems by the information pushing of BOM to CAE
Database Systems, or the direct BOM information retrieved from PDM Database Systems and obtain the CAD data.
Specifically, the information of BOM may include node ID and a version number.
Step S102：According to the information of BOM, retrieval CAE Database Systems whether there is the BOM.
Specifically, pushed according to PDM Database Systems or the BOM that directly retrieves from PDM Database Systems and obtain
Information, retrieves and is matched in CAE Database Systems.If retrieving the head node with the BOM in CAE Database Systems
The BOM of ID and version numbers match, then illustrate the existing BOM of CAE Database Systems.If not retrieving in CAE Database Systems
To the head node ID with the BOM and BOM of version numbers match, then illustrate that CAE Database Systems do not have the BOM.
It should be noted that BOM is the basis using the ID of head node and version number as management in CAE Database Systems,
Rather than using the node ID of each BOM row and version number as the basis of management, do not allow a node ID and version number's identical
BOM is repetitively appearing in CAE Database Systems, i.e., the head node ID of BOM and version number are unique in CAE Database Systems.Work as PDM
Database Systems are pushed to CAE Database Systems or get after the BOM information of CAD data from PDM Database Systems, only
Needs are matched with the information of the BOM in CAE Database Systems, are matched without each the BOM row with BOM, are imitated
Rate is higher.
Step S103：When retrieving CAE Database Systems and there is no the BOM, BOM is created in CAE Database Systems,
And CAD data is write into the specified location of the BOM for creating.
Specifically, the specified location of BOM can be the specified location of BOM rows.
Step S104：When retrieving CAE Database Systems and there is the BOM, the specified location for judging the BOM whether there is
CAD data, if the specified location of the BOM does not have CAD data, by CAD data the specified location of the BOM is write.
When step S102 judges that CAE Database Systems have the BOM, need to determine whether the specified location of the BOM is
It is no to there is CAD data.Specifically, the specified location of BOM can be the specified location of BOM rows.CAD numbers in CAE Database Systems
According to depending on corresponding BOM, rather than single BOM rows are depended on, namely if in some BOM, whichever BOM level is deposited
In CAD data, then CAD data is included in the BOM.
If the specified location of BOM does not have CAD data, the finger that CAD data is written to one by one corresponding BOM rows is needed
Positioning is put.
After this, grid process can be carried out to CAD data, this process can be realized by two kinds of approach.
The first approach, in order to ensure CAE Database Systems in same specification grid uniqueness, it is every for CAD data
One part, judges whether CAE Database Systems have had the grid of required specification.When CAE Database Systems do not have CAD
The grid of specification needed for the part of data, then carry out stress and strain model to the part of CAD data, and the grid for obtaining write is present
BOM or establishment BOM row specified location.
If there is the grid of specification needed for the part of CAD data in CAE Database Systems, the required specification for judging to exist
Whether grid can reuse；If the grid of the required specification for existing can be reused, grid division need not be repeated, it is not required that
The grid of the required specification that there will be copies to the specified location of the row of the BOM of presence or the BOM of establishment, it is only necessary to set up two
Adduction relationship between BOM, directly quotes the grid, it is ensured that the same specification grid of single part is only in CAE Database Systems
One property；If the grid of required specification for existing cannot be reused, stress and strain model is carried out to the part of CAD data, and by grid
BOM or the specified location of the BOM of establishment that write is present.
Specifically, when required specification grid corresponding to BOM version number and the above-mentioned BOM or BOM of establishment
When identical, then the grid of the required specification is reusable；When required specification grid corresponding to BOM version number and above-mentioned presence
BOM or establishment BOM it is different when, then the grid of the required specification is not reusable.
Second approach, does not consider the uniqueness of same specification grid in CAE Database Systems, each to CAD data
Part carries out stress and strain model, and the grid for obtaining is write the specified location of the BOM of the BOM or establishment for existing.
In practice, for the uniqueness of CAD data in the range of guarantee company, need to clean out the CAD numbers in CAE systems
According to, only retain the data such as the structure and attribute information, grid model of BOM, therefore, when the grid of all parts of CAD data is built
After the completion of vertical, the CAD data in CAE Database Systems need to be cleaned out.Specifically, CAD data cleaning condition is first set, for full
The CAD data of sufficient CAD data cleaning condition is purged.It should be noted that CAD data cleaning condition can be week time
Phase, such as every half a year clear up once, so need not every time obtain and all cleared up after CAD data, can reduce system operation money
Source expense, it is ensured that system running speed, but the present invention is not defined to this, can be by User Defined.
The method that the CAE Database Systems that the present embodiment is provided obtain CAD data, is capable of achieving CAE Database Systems from PDM
Database Systems obtain and effectively store required CAD data, it is to avoid the repetition storage of CAD data in CAE Database Systems, and
And after the completion of the grid of all parts when CAD data is set up, clean out the CAD data in CAE Database Systems, it is ensured that it is public
The uniqueness of CAD data in the range of department.
Embodiment two
Corresponding to embodiment one, the device that a kind of CAE Database Systems obtain CAD data, such as Fig. 2 are present embodiments provided
It is shown, including acquisition module 201, retrieval module 202, creation module 203 and writing module 204.Each module is had below
Body is introduced.
Acquisition module 201, for the CAD data for needing to obtain according to CAE Database Systems, obtains from PDM Database Systems
Take the information of the BOM of the CAD data.
Acquisition module 201 obtains the process of the information of the BOM of CAD data, can be PDM Database Systems by the letter of BOM
Breath is pushed to CAE Database Systems, or the direct BOM letters retrieved from PDM Database Systems and obtain the CAD data
Breath.
Specifically, the information of BOM may include node ID and a version number.
Retrieval module 202, for according to the information of BOM, retrieval CAE Database Systems to whether there is the BOM.
Specifically, pushed according to PDM Database Systems or the BOM that directly retrieves from PDM Database Systems and obtain
Information, retrieves and is matched in CAE Database Systems.If retrieving the head node with the BOM in CAE Database Systems
The BOM of ID and version numbers match, then illustrate the existing BOM of CAE Database Systems.If not retrieving in CAE Database Systems
To the head node ID with the BOM and BOM of version numbers match, then illustrate that CAE Database Systems do not have the BOM.
It should be noted that the ID of the head node of each BOM and version number are used as the base for managing in CAE Database Systems
Plinth, rather than using the node ID of each BOM row and version number as the basis of management, do not allow a node ID and version number identical
BOM be repetitively appearing in CAE Database Systems, i.e., the head node ID of BOM and version number are unique in CAE Database Systems.When
PDM Database Systems be pushed to CAE Database Systems or from PDM Database Systems get CAD data BOM information it
Afterwards, it is only necessary to matched with the information of the BOM in CAE Database Systems, carry out without each the BOM row with BOM
Match somebody with somebody, efficiency is higher.
Creation module 203, for when retrieving CAE Database Systems and there is no the BOM, in CAE Database Systems
BOM is created, and CAD data is write into the specified location of the BOM for creating.
Specifically, the specified location of BOM can be the specified location of BOM rows.
Writing module 204, for when retrieving CAE Database Systems and there is the BOM, judging the specified location of the BOM
With the presence or absence of CAD data, if the specified location of the BOM does not have CAD data, CAD data is write into the specific bit of the BOM
Put.
When retrieval module 202 retrieves CAE Database Systems and there is the BOM, the specified location of the BOM need to be determined whether
With the presence or absence of CAD data.Specifically, the specified location of BOM can be the specified location of BOM rows.CAD in CAE Database Systems
Data depend on corresponding BOM, rather than depend on single BOM rows, namely if in some BOM, whichever BOM level
There is CAD data, then CAD data is included in the BOM.
If the specified location of BOM does not have CAD data, the finger that CAD data is written to one by one corresponding BOM rows is needed
Positioning is put.
After this, grid process can be carried out to CAD data, this process can be realized by two methods.
The first approach, in order to ensure CAE Database Systems in same specification grid uniqueness, it is every for CAD data
One part, judges whether CAE Database Systems have had the grid of required specification.When CAE Database Systems do not have CAD
The grid of specification needed for the part of data, then carry out stress and strain model to the part of CAD data, and the grid for obtaining write is present
BOM or establishment BOM row specified location.
If there is the grid of specification needed for the part of CAD data in CAE Database Systems, the required specification for judging to exist
Whether grid can reuse；If the grid of the required specification for existing can be reused, grid division need not be repeated, it is not required that
The grid of the required specification that there will be copies to the specified location of the row of the BOM of presence or the BOM of establishment, it is only necessary to set up two
Adduction relationship between BOM, directly quotes the grid, it is ensured that the same specification grid of single part is only in CAE Database Systems
One property；If the grid of required specification for existing cannot be reused, stress and strain model is carried out to the part of CAD data, and by grid
The specified location of write BOM or the BOM of establishment.
Specifically, when required specification grid corresponding to BOM version number and the above-mentioned BOM or BOM of establishment
When identical, then the grid of the required specification is reusable；When required specification grid corresponding to BOM version number and above-mentioned presence
BOM or establishment BOM it is different when, then the grid of the required specification is not reusable.
Second approach, does not consider the uniqueness of same specification grid in CAE Database Systems, each to CAD data
Part carries out stress and strain model, and the grid for obtaining is write the specified location of the BOM of the BOM or establishment for existing.
In practice, for the uniqueness of CAD data in the range of guarantee company, need to clean out the CAD numbers in CAE systems
According to, only retain the data such as the structure and attribute information, grid model of BOM, therefore, when the grid of all parts of CAD data is built
After the completion of vertical, the CAD data in CAE Database Systems need to be cleaned out.Specifically, CAD data cleaning condition is first set, for full
The CAD data of sufficient CAD data cleaning condition is purged.It should be noted that CAD data cleaning condition can be week time
Phase, such as every half a year clear up once, so need not every time obtain and all cleared up after CAD data, can reduce system operation money
Source expense, it is ensured that system running speed, but the present invention is not defined to this, can be by User Defined.
Because embodiment two is mutually corresponding with embodiment one, so the beneficial effect that can be brought is identical, will not be described here.
In embodiment provided herein, it should be understood that disclosed method and apparatus, only schematically
, for example, the division of the step and module, only a kind of division of logic function can have other drawing when actually realizing
The mode of dividing.Said method and device can run corresponding software and hardware to realize by computer installation.
The above is for only for ease of those skilled in the art and understands technical scheme, not to limit
The present invention.All any modification, equivalent substitution and improvements within the spirit and principles in the present invention, made etc., should be included in this
Within the protection domain of invention.
Claims (10)
1. a kind of method that computer-aided engineering CAE Database Systems obtain computer aided design cad data, its feature exists
In, including：
According to the CAD data that CAE Database Systems need to obtain, from product data management PDM Database Systems the CAD is obtained
The information of the BOM BOM of data；
According to the information of the BOM, retrieve the CAE Database Systems and whether there is the BOM；
There is no the BOM when the CAE Database Systems are retrieved, then create BOM in the CAE Database Systems, and
The CAD data is write into the specified location of the BOM for creating；
There is the BOM when the CAE Database Systems are retrieved, then judge the specified location of the BOM with the presence or absence of described
CAD data, if the specified location of the BOM does not have the CAD data, by the CAD data specifying for the BOM is write
Position.
2. the method that CAE Database Systems according to claim 1 obtain CAD data, it is characterised in that the BOM's
Information includes head node ID and version number.
3. the method that CAE Database Systems according to claim 1 obtain CAD data, it is characterised in that methods described is also
Including：
For each part of the CAD data, judge whether the CAE Database Systems have had the net of required specification
Lattice；
When the CAE Database Systems do not have the grid of required specification, then grid is carried out to the part of the CAD data and is drawn
Point, and grid is write the specified location of the BOM of the BOM or described establishments；
If the CAE Database Systems exist it is described needed for specification grid, whether judge the grid of required specification for existing
Can reuse；
If the grid of the required specification of the presence can be reused, the grid of the required specification of the presence is quoted；
If the grid of the required specification of the presence cannot be reused, stress and strain model is carried out to the part of the CAD data, and
Grid is write the specified location of the BOM of the BOM or described establishments.
4. the method that CAE Database Systems according to claim 1 obtain CAD data, it is characterised in that methods described is also
Including：
Stress and strain model is carried out to each part of the CAD data, and grid is write into the BOM of the BOM or described establishments
Specified location.
5. the method that CAE Database Systems according to claim 1 obtain CAD data, it is characterised in that methods described is also
Including：
Setting CAD data cleaning condition, in the specified location of the BOM for removing the BOM or described establishments the CAD data is met
The CAD data of cleaning condition.
6. a kind of CAE Database Systems obtain the device of CAD data, it is characterised in that include：
Acquisition module, for the CAD data for needing to obtain according to CAE Database Systems, obtains described from PDM Database Systems
The information of the BOM of CAD data；
Retrieval module, for according to the information of the BOM, retrieving the CAE Database Systems BOM is whether there is；
, there is no the BOM for the CAE Database Systems ought to be retrieved, then in the CAE Database Systems in creation module
Middle establishment BOM, and the CAD data is write into the specified location of the BOM for creating；
, there is the BOM in writing module, then judge the specified location of the BOM for retrieving the CAE Database Systems
With the presence or absence of the CAD data, if the specified location of the BOM does not have the CAD data, by CAD data write
The specified location of the BOM.
7. CAE Database Systems according to claim 6 obtain the device of CAD data, it is characterised in that the acquisition mould
The information of the BOM that block is obtained includes head node ID and version number.
8. CAE Database Systems according to claim 6 obtain the device of CAD data, it is characterised in that the process mould
Block specifically for：
For each part of the CAD data, judge whether the CAE Database Systems have had the net of required specification
Lattice；
When the CAE Database Systems do not have the grid of required specification, then grid is carried out to the part of the CAD data and is drawn
Point, and grid is write the specified location of the BOM of the BOM or described establishments；
If the CAE Database Systems exist it is described needed for specification grid, whether judge the grid of required specification for existing
Can reuse；
If the grid of the required specification of the presence can be reused, the grid of the required specification of the presence is quoted；
If the grid of the required specification of the presence cannot be reused, stress and strain model is carried out to the part of the CAD data, and
Grid is write the specified location of the BOM of the BOM or described establishments.
9. CAE Database Systems according to claim 6 obtain the device of CAD data, it is characterised in that the process mould
Block specifically for：
Stress and strain model is carried out to each part of the CAD data, and grid is write into the BOM of the BOM or described establishments
Specified location.
10. CAE Database Systems according to claim 6 obtain the device of CAD data, it is characterised in that described device
Also include removing module, for setting CAD data cleaning condition, and remove the specified location of the BOM of the BOM or described establishments
It is middle to meet the CAD data that the CAD data clears up condition.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109657376A (en) * | 2018-12-20 | 2019-04-19 | 奇瑞汽车股份有限公司 | A kind of vehicle automation modeling method for CAE emulation |
| CN109657376B (en) * | 2018-12-20 | 2022-12-30 | 奇瑞汽车股份有限公司 | Full-vehicle automatic modeling method for CAE simulation |
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