JP3022402B2 - Drawing data management method and system, and recording medium - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and system for managing drawing data in a CAD system, and more particularly, to a drawing which automatically extracts necessary information relating to a drawing from various types of information, thereby enabling quick search and management of the drawing data. The present invention relates to a data management method and system, and a recording medium .

[0002]

2. Description of the Related Art As a CAD drawing management processing method, for example, Japanese Patent Application Laid-Open No. Sho 62-219167 discloses a method of automatically extracting description items described on individual CAD drawings as search key items. Corresponding to the drawing numbers of CAD drawings
A method has been proposed in which a search file creation processing unit for editing a record describing the contents of the extracted search key items is provided, and individual CAD drawings are extracted using the description items on the CAD drawings as the contents of the search keys. I have.

FIG. 8 shows an example of a configuration proposed in the above-mentioned Japanese Patent Application Laid-Open No. 62-219167 as a conventional drawing data management system. FIG. 9 shows an example of a processing mode for extracting drawing information, which is the content of a search key item, in the drawing data management method shown in FIG. 8, and FIG. 9A shows an example of a parameter table, and FIG. b) shows an example of each drawing.

Referring to FIG. 8, a CAD drawing database 801 includes a plurality of CAD drawings (801-1, 801).
-2,...) Are provided.

[0005] System Preparation process function unit 802, or extracts item determining processing for determining the extracts which part as a search key item in the individual CAD drawings, keys and should do item when searching the drawings, for example, when searching Prepare key item determination processing to determine items such as drawing number to be used, creation date and creator name, extraction method determination processing to determine the extraction method for extracting the contents of the extracted search key items, etc. Perform as processing.

[0008] As shown in FIG. 9A, the system parameter file 803 stores a parameter table 901 describing the above extraction method.

The parameter table 901 on the system parameter file 803 (see FIG. 9A) contains FIG.
From the description items on the CAD drawing 901-i shown in (b),
A coordinate value (xy coordinates) and a search key item name (drawing number,
Weight, date, name, etc.).

Then, a search file creation processing function unit 80
4 extracts the content a of the drawing number item of FIG. 9B with respect to the drawing 901-i of FIG. 9B, for example, based on the coordinate values (−20, 5), and Based on 10), the contents d of the name item in FIG. 9B are extracted.

In this manner, the search file creation processing function unit 804 automatically extracts the contents of the search key items from the individual CAD drawings 801-1, 801-2,... Based on the contents of the parameter table. The illustrated records 806-1, 806-2,...
Is generated and edited for each CAD drawing.

The search file 805 stores a plurality of records 806-1, 806-2,..., And each record includes (drawing number) and the like of a drawing storage file in which a CAD drawing is stored. The file name and the contents a, b, c, etc. of the extracted search key items are described.

The search function unit 807 performs a process of searching for the above-mentioned record based on the content of the key item and searching a drawing storage file based on the content of the extracted record. Then, for example, with respect to one of the search key items, the figure number of the drawing having the content a is displayed on the terminal device 808.

[0012]

However, the conventional management method described above has the following problems.

(1) The first problem is that an item serving as a search key must be placed at a predetermined position on each CAD drawing (subject to placement restrictions).

The reason is that the contents of each item are extracted based on the coordinate values as a search parameter table.

(2) The second problem is that the setting of the search key item can only correspond to the information described on the drawing.

The reason is that the extraction of the retrieval key item is performed by CAD.
This is because necessary information is extracted from the data described on the drawing.

Accordingly, the present invention has been made in view of the above-mentioned problems of the prior art, and its object is to provide a CA.
When storing, managing, and retrieving D drawing data,
Provided are a drawing data management method and system, and a recording medium, in which all information relating to the product is extracted from design information and product information as a target of a search key item, and operability at the time of search and high-speed drawing search can be performed. It is in.

[0018]

In order to achieve the above object, a drawing data management method according to the present invention uses a CAD (Comp
In storing a drawing data of a printed wiring board created by the Uter Aided Design (computer-assisted design), a drawing data management method of a CAD system provided with a function of extracting necessary information from the drawing information. (a) A design information file of a printed wiring board created by CAD.
Setting a keyword to be extracted from the file and the product information file, and extracting necessary information by search information extracting means; (b) storing the extracted search information as an information search table; and (c). A step of storing drawing data and various information related to drawing search in a drawing database; (d) managing a plurality of stored drawing data by a drawing management table; and (e) searching a specific file from the plurality of drawing data. have a, a step to be output to the output means, the author's name and day
Simple search such as appending, or detailed search by key item search
The search method is determined as to whether it is a search.
Specified from the information described in the drawing management table
Search for the specified drawing by searching for the search key item
Detailed search by key items such as printed wiring board specific key items
In the case, the information described in the search information management table
Search the specified search key item from among
Search . Also, a CAD drawing data management system according to the present invention.
Is a CAD (Computer Aided Desi)
gn; computer-aided design)
When storing surface data, it is necessary to select from the information
CAD data management system with a function to extract important information
Design of printed wiring board created by CAD in stem
From the information file and product information file, search key terms
Search information extraction means for extracting eyes, and the search information extraction means
Search information table that stores the search key items extracted in the column
And a drawing database that stores and manages drawing data.
Management of stored drawing data and storage of search key items
Drawing management table to be performed and search processing to perform drawing search processing
And a terminal device for displaying search results.
The search processing means uses simple information such as the creator name and date.
In the case of simple search of drawings by report,
Search key item specified from the information described in the table
Search for the specified drawing, and search for the specific printed wiring board.
For detailed search of drawings by key items such as search key items
Is in the information described in the search information management table
Search for the specified search key item and search for the specified drawing
Do.

According to the drawing data management method of the present invention, when managing a plurality of CAD drawing data, information relating to a printed wiring board is extracted as search key items from design information and product information on the product, Also, by setting the search key items to items specific to the printed wiring board,
It is possible to search for a more necessary CAD drawing, for example, a drawing in which a part is used at high speed.

[0020]

Embodiments of the present invention will be described below. In a preferred embodiment of the drawing data management method of the present invention, (a) a design information file (101 in FIG. 1) designed by CAD for storing, managing, and retrieving CAD drawings; Product information file of the product required for manufacturing (102 in FIG. 1)
And (b) extracting information unique to the printed wiring board as a search key item by using a search information extracting unit (103 in FIG. 1), and (b) searching information extracted by the search information extracting unit (103 in FIG. 1). (C) temporarily storing the drawing name in the information table (104), and using the drawing name as the primary key of the search key item, and storing in the drawing management table (106 in FIG. 1) the file name, version number, (D) a drawing database (FIG. 1)
(105) storing CAD drawing data and respective management tables in (e), and (e) a search processing unit (10 in FIG. 1) based on the contents of key items when performing drawing search.
According to 7), there is a step of performing a process of searching for a drawing storage file from the table, and a step of displaying the content of the search result on the terminal device (108 in FIG. 1).

In the preferred embodiment of the present invention, as a means for extracting a search key item, an extraction item set by a search information extraction unit (103 in FIG. 1) is used.
Necessary search key items specific to the printed wiring board can be extracted from the design information file (101 in FIG. 1) and the product information file (102 in FIG. 1).

Since the design information file (101 in FIG. 1) and the product information file (102 in FIG. 1) have a simple data structure in a predetermined format, the search information extraction unit (103 in FIG. 1). By determining the extraction item and the extraction method, the retrieval key item can be extracted automatically and at high speed.

The search information extraction unit (103 in FIG. 1) includes an extraction method for extracting a search key item from a design information file (101 in FIG. 1) and a product information file (102 in FIG. 1) specific to a printed wiring board. The search key items are described and are automatically extracted when the CAD drawing is stored, and are stored in the search information table (104 in FIG. 1).

That is, according to the embodiment of the present invention,
Items not described in the data of the CAD drawing itself or necessary items can be extracted as search key items from files such as design information and product information specific to the printed wiring board.

Further, in the embodiment of the present invention, since the search key item can be extracted from the design information file or the product information file, each item described in the drawing can be extracted without paying particular attention to the coordinate values. Can be created.

The CAD drawing data is stored in a compressed form in a drawing database (105 in FIG. 1), and rough information such as a file name, a version number, a creator name, and a date relating to the drawing is stored in a drawing management table (FIG. 1). 1 is stored at 106).

When searching CAD drawing data having the contents of a search key item, a search processing unit (10 in FIG. 1)
7), the drawing management table (106 in FIG. 1) and the search information table (104 in FIG. 1) are searched, and the result of the searched drawing is output to the terminal device (108 in FIG. 1).

In the embodiment of the present invention, preferably, the processing of each of the above steps (a) to (e) is executed by an information processing apparatus such as a computer and can be realized by a program.

[0029]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an embodiment of the present invention;

FIG. 1 is a block diagram showing an embodiment of a system configuration to which a drawing data management method according to the present invention is applied. FIG. 2 shows an example of a drawing management table according to an embodiment of the present invention. FIG.
5 shows an example of a design information file used in one embodiment of the present invention. FIG. 4 shows an example of a product information file used in one embodiment of the present invention. FIG. 5 shows an example of a search information table used in one embodiment of the present invention.

Referring to FIG. 1, search information extraction unit 103
Describes extraction items and extraction methods to be extracted as search key items from the description items of the design information file 101 and the product information file 102 output by the CAD system. Items are entered in the design information file 101 and the product information file 1
02 automatically.

The setting of the extraction method and the setting of the extraction items in the retrieval information extraction unit 103 can be performed by a simple extraction method, such as simple information such as drawing name, version number, date, and creator name, before storing the drawing. Or the detailed extraction method, for example, the method of extracting detailed information such as the used component name and board thickness circuit width. For example, selection is made from information such as a drawing name, a version number, a date, a part name, and a plate thickness, and extraction items are set.

FIG. 3 is a diagram showing an example of describing information of parts in a design information file according to an embodiment of the present invention.
Information on design such as component name and arrangement coordinates of one component is described in detail in a predetermined format for one record, and the search information extracting unit 10 shown in FIG.
The necessary search key items are extracted by the search method described in No. 3. In the example of the design information file shown in FIG. 3, a record name, a component name, a logical component name, a physical component name,
Information such as an arrangement position is stored.

FIG. 4 is a diagram showing an example of a description of a product information file according to an embodiment of the present invention. Information about a product such as a board thickness and a circuit width of one product is recorded for one record. It is described in detail in a fixed format. In the example of the product information file shown in FIG. 4, information such as a drawing name, a version number, a layer number, a board thickness, a circuit width, and a blank size are stored.

FIG. 5 is a diagram showing an example of a search information table according to one embodiment of the present invention. The search information described in the search information extracting unit 103 from the design information file 101 and the product information file 102 shown in FIG. Items extracted by key items are described.

Referring to FIG. 1, drawing database 105
Contains a plurality of CAD drawings, which are stored in a compressed format to reduce the file capacity.

FIG. 2 shows an example of a drawing management table in one embodiment of the present invention. This drawing management table stores rough information such as drawing names, compressed file names, creator names, dates, and the like related to drawings, and can perform drawing search from simple information at high speed.

For the drawing search processing, the search processing unit 107 shown in FIG. 1 describes a search method such as a key search by a search key item and a high-speed search by simple information, and a search item by a key search. ing.

Information retrieved from the drawing management table 104 and the retrieval information table 106 by the retrieval processing unit 107 is displayed through the terminal device 108.

The operation of one embodiment of the present invention will be described in detail with reference to the drawings.

FIG. 6 is a flowchart showing the operation of extracting a search key item in one embodiment of the present invention.

When storage of a drawing is instructed, storage processing of the drawing is started (step 601).

When the drawing storage process is started, first, a method for performing extraction and an item to be extracted are set (step 602).

As the extraction method designation in step 602, (1) one method is to extract only information such as a drawing name, a creator name, and a date, which do not require detailed information, as a search key item. The second is a method of extracting information specific to the printed wiring board as a search key item from design information and product information related to a CAD drawing, such as a method of extracting a used component name as a search key item. Is specified.

When a search key item is specified, all items described in the design information and product information are registered in advance as search key item targets, and by selecting an item to be extracted as a search key item, Only necessary search key items can be extracted.

When the above specification is completed, the design information file and the product information file are read according to the contents of the set key items (step 603), and the set search key items are searched from the items described in the files. Automatically extract information to be a search key item (step 60)
4) Generate the extracted search key items as a search information table (step 605).

The CAD drawing data output from the CAD is stored in a compressed form in the CAD drawing database in order to reduce the file size (step 60).
6).

In order to manage the compressed file, a drawing management table in which a drawing name, a compressed file name, and the like are described is generated at the same time as storing the drawing (step 607).

The drawing management table also stores rough information such as an information creator name and date for facilitating a drawing search.

When all the information is generated and the CAD drawing data is stored, the retrieval key item extraction processing and the drawing data storage processing are completed (step 608).

Next, the operation of the CAD drawing data search processing in one embodiment of the present invention will be described with reference to the flowchart shown in FIG.

When the drawing search process (step 701) is started, first, a search method and a search key item are set (step 702).

The setting of the search method determines whether the search is a simple search or a detailed search by a key item search (step 703).

From simple information such as creator name and date, CA
When searching for the D drawing, the specified search key item is searched from the information described in the drawing management table (step 704), and the specified CAD drawing is searched.

Further, a search from detailed information by setting a search method, for example, when searching for a drawing in which a part is used, such as when a search key item unique to a printed wiring board is desired, is used.
When searching for an AD drawing, a specified search key item is searched from information described in the search information management table (step 705), and a specified CAD drawing is searched.
Since only predetermined information required for simple search is stored in the drawing management table, the data amount is as small as several kilobytes, and simple search processing can be performed relatively quickly.

On the other hand, since the search information table stores all the information of the search key items specified when extracting the search key items, the data amount is very large, from several tens of kilobytes to several hundreds of kilobytes. Although it takes a little longer than a simple search process to search, it is possible to search in detail for the drawing information to be searched.

The result of the above search processing (step 70)
6) If the specified CAD drawing is not found,
Set the search method and search key items again.

When the CAD drawing specified by the search processing is searched, the contents of the search result are output to the terminal device (step 707), and the search processing is terminated (step 70).
8).

[0059]

As described above, according to the present invention,
The following effects are obtained.

(1) The first effect of the present invention is that information unique to the printed wiring board, which is not described in the CAD drawing, can be set as a search key item, and necessary CAD can be set by setting detailed search key items. This means that a drawing search process can be performed.

The reason is that, in the present invention, a design information file output from a CAD other than a CAD drawing or a product information file is extracted as a search key item unique to a printed wiring board, and the information is extracted as search information. That's because.

(2) The second effect of the present invention is that a simple CA
The D drawing can be searched at high speed by setting a simple search key item. If you want to search in detail, the CAD that contains the information you want to know by setting the detailed search key item
This means that drawings can be searched.

The reason is that in the present invention, C
To search for AD drawings, search the search key items from the drawing management table in which simple search key items are set, and to search for detailed CAD drawings, set the detailed search key items. This is because a search key item can be searched using the search information table described above.

[Brief description of the drawings]

FIG. 1 is a block diagram for explaining an embodiment of the present invention.

FIG. 2 is a diagram illustrating an example of a drawing management table according to an embodiment of the present invention.

FIG. 3 is a diagram showing an example of a design information file used in one embodiment of the present invention.

FIG. 4 is a diagram showing an example of a product information file used in one embodiment of the present invention.

FIG. 5 is a diagram illustrating an example of a search information table according to an embodiment of the present invention.

FIG. 6 is a flowchart illustrating an operation of a search key item extraction process according to an embodiment of the present invention.

FIG. 7 is a flowchart showing an operation of a CAD drawing search process in one embodiment of the present invention.

FIG. 8 is a block diagram showing a configuration of a conventional CAD drawing data management system.

FIG. 9 is a diagram showing an example of a table showing search key items in a conventional CAD drawing data management system.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 101 Design information file 102 Product information file 103 Search information extraction part 104 Search information table 105 Drawing database 106 Drawing management table 107 Search processing part 108 Terminal device

Continuation of front page (56) References JP-A-6-110953 (JP, A) JP-A-63-219035 (JP, A) JP-A-7-191731 (JP, A) JP-A-3-125266 (JP) JP-A-5-282391 (JP, A) Koichi Tanaka, Tetsuya Yamamoto, Kojiro Matsumoto, "PWBCAD technology aiming at CS improvement", NEC Technical Report vol. 48, no. 63-66 (October 25, 1995) Koichi Tanaka, Tetsuya Yamamoto, Kojiro Matsumoto, "User Interface of Printed Circuit Board CAD", NEC Technical Report vol. 46, no. 10, pp. 55-58 (October 25, 1993) (58) Fields surveyed (Int. Cl. ⁷ , DB name) G06F 17/30 G06F 17/50

Claims (3)

(57) [Claims] 1. A CAD (Computer Aided)
Design; printed distribution created in a computer-assisted design)
CAD system having a function of extracting necessary information from the drawing information when storing drawing data of a wire plate
In the drawing data management method, (a) the design information file of the printed wiring board created by CAD
Set keywords extracted from the Le and product information files, extracting information needed by the search information extracting means, and storing as information retrieval table retrieval information extracted (b), (c) Storing the drawing data and various information related to the drawing search in the drawing database; (d) managing the plurality of stored drawing data by the drawing management table; and (e) searching a specific file from the plurality of drawing data. have a, a step to be output to the output means, whether it is simple search, such as author name and date, the key item inspection
Determine the search method whether it is a detailed search by search, and simple search
In the case of, the information described in the drawing management table
Designated by searching for the specified search key item from inside
Search for the surface and use it as a key item such as a key item specific to the printed wiring board.
In the case of the detailed search by the search information management table,
Search for the specified search key item from the described information
A drawing data search method for searching for a specified drawing . 2. CAD (Computer Aided)
Design; printed distribution created in a computer-assisted design)
In a CAD drawing data management system having a function of extracting necessary information from the drawing information when storing drawing data of a wiring board, a design information file and a product information of a printed wiring board created by CAD are provided. Search information extraction means for extracting a search key item from a file, a search information table for storing the search key items extracted by the search information extraction means, a drawing database for storing and managing drawing data, and stored drawing data management and the storage of the search key item of
A drawing management table to be performed, a search processing means for performing a drawing search processing, and a terminal device for displaying a search result. The search processing means includes a simple processing such as a creator name and a date.
In the case of simple search of drawings by information, the drawing management
Search key term specified from the information described in the table
Search the eyes and search for the specified drawing,
Detailed search of drawings by key items such as search key items
Contains information described in the search information management table.
Search the specified drawing by searching the specified search key item from
Drawing data management system for, and wherein the a. 3. CAD (Computer Aided)
Design; printed distribution created in a computer-assisted design)
In a CAD system having a function of extracting necessary information from the information of the drawing when storing the drawing data of the wiring board , (a) a design information filter and a product information of a printed wiring board created by CAD; A process of setting a keyword to be extracted from a file and extracting necessary information by a search information extraction program; (b) a process of storing the extracted search information as an information search table; and (c) drawing data and drawing search. A process of storing various information in a drawing database; (d) a process of managing a plurality of stored drawing data with a drawing management table; and (e) a process of retrieving a designated file from the plurality of drawing data and outputting it to an output unit. And the creator name and date
In the case of simple search of drawings by simple information, the drawing
Search specified from information described in the management table
The key item is searched and the specified drawing is searched, and the printed wiring
Detailed search of drawings by key items such as plate-specific search key items
In the case of a search, the search information is described in the search information management table.
Search for the specified search key item from the information and specify it
A recording medium on which a program for performing a process of searching for a surface and a program for executing the above processes by a computer and managing drawing data is recorded.