JPH08314996A - Cad library managing device - Google Patents

Abstract

PURPOSE: To reduce the burden on a designer without providing a CAD library dedicated to each normalized data such as a symbol, a model for each piece of prepared data. CONSTITUTION: A center device 2 stores graphic obtaining information for obtaining graphic data of each version in pertinent normalized data for every standardized data in the CAD library 6, obtains graphic data of the newest or specified version in accordance with a new graphic data transfer request specifying normalized data and a specified graphic data transfer request specifying the version and standardized data, which have been received from each CAD device and sends graphic data back to the CAD device. A CAD device 3 transmits standardized data inputted at the time of preparing new CAD data to the center device as the new graphic data transfer request and at the time of correcting or diverting CAD data, and transmits standardized data given the version included in this CAD data to the center device as the specified graphic data transfer request.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a CAD system for creating a circuit diagram and various design drawings, and in particular, in actualizing standardized standardized data such as symbols, models and cells incorporated in CAD data. To store the graphic data of C
The present invention relates to a CAD library management device that manages an AD library.

[0002]

2. Description of the Related Art When simulating a circuit diagram using a CAD device, for example, a digital circuit element such as an AND gate, an OR gate, a flip-flop, or an analog circuit such as a resistor, a capacitor or a coil used in the circuit diagram is used. Actual graphic data such as elements and parts, such as bolts and nuts in machine design drawings, and standardized symbols such as models for executing simulations are not created each time, but rather are created in advance. symbol,
Graphic data is prepared as a CAD library for each model.

When the designer performs the design work such as the circuit diagram creation and the simulation as described above, the CA
Either the D library is created by itself, or the graphic data of the symbol or model necessary for own design is copied and used from the graphic data stored and held in the CAD library provided in the center device. .

It is not necessary to write standardized symbol or model graphic data itself in the CAD data showing the circuit diagram or simulation data created in this way, and standardized data such as symbol names and model names can be used. Just write. The graphic data of the standardized data such as the symbol name and model name incorporated in the CAD data was separately stored as a dedicated CAD library.

A dedicated CAD is provided for each CAD data.
The reason for providing the library is that the standardized symbol and model graphic data stored in the CAD library of the center device may be changed due to specification changes and improvements. This is because it is necessary to secure it.

When confirming the design figure of the CAD data on the display screen later or when changing the design figure, standardized data such as a symbol name and a model name incorporated in the CAD data is stored in the CAD library. By replacing the recorded graphic data with the recorded graphic data, the design graphic can be made visible to the designer.

[0007]

[Problems to be Solved by the Invention] However, each CA
CAD that provides a dedicated CAD library for each D data
The system also had the following problems to be improved. (1) As described above, it is necessary to secure a dedicated CAD library at the time of creation in order to check the created CAD data in a graphic state and to correct / use the CAD data. Therefore, the management of the dedicated CAD library becomes complicated, and the work load on the designer increases.

(2) Since the designer must copy the required symbol and model graphic data from the center device to prepare the CAD library data, the burden on the designer also increases.

(3) Since it is not possible to confirm whether each graphic data of the CAD library which is copied from the center device and is in the designer's hand is the latest graphic data, the circuit diagram and the old graphic data are used. There is concern about designing simulation diagrams. In this case, there arises a problem that the best design drawing cannot be obtained.

The present invention has been made in view of the above circumstances, and collectively manages the graphic data for each standardized data such as symbols and models used in each CAD device including the version in the center device. By each CAD
It is not necessary to store a dedicated CAD library for each CAD data created by the device, and the latest version of graphic data can be automatically obtained when new CAD data is created. In addition, the graphic data at the time of creation is automatically obtained, which can greatly reduce the work load on the designer and prevent the wrong version of the graphic data from being used in advance, thus improving the reliability of the design work. It is an object to provide a CAD library management device that can be improved.

[0011]

In order to solve the above-mentioned problems, the present invention has a center having a CAD library for storing actual graphic data for each standardized data such as symbols and models incorporated in CAD data showing a graphic. In a CAD library management apparatus in a CAD system including a device and a plurality of CAD devices connected to the center device via a communication network and creating CAD data showing a figure, a CAD library for the center device is provided. It is stored with the graphic data of each standardized data in
Graphic acquisition information for obtaining graphic data of each version in the corresponding standardized data for each standardized data, and each CAD
Latest graphic data acquisition means for obtaining the latest version of graphic data of the standardized data from the CAD library using the graphic acquisition information in response to a new graphic data transfer request specifying the standardized data received from the device, and each CAD device. Designated graphic data acquisition means for obtaining graphic data of a designated version of the corresponding standardized data from the CAD library in response to a designated graphic data transfer request designating the version and the standardized data received from the CAD library; The graphic data acquired by the data acquisition means is attached with a version, and the graphic data transmission means returns the CAD data to the transfer request source CAD device.

Further, a new CA is provided for each CAD device.
A new graphic data transfer request transmitting means for transmitting the standardized data input at the time of creating the D data to the center device as a new graphic data transfer request, and a version included in this CAD data when modifying or diverting the created CAD data are attached. Using the designated figure data transfer request transmitting means for transmitting the standardized data as a designated figure data transfer request to the center apparatus and the figure data to which the version received from the center apparatus is added, the CAD data is created, modified or diverted. And a processing support means for performing the processing.

Further, in another invention, the figure acquisition information for obtaining the figure data of each version is configured by the figure data of the corresponding version stored for each version.

Further, in another invention, the figure acquisition information for obtaining the figure data of each version is constituted by the difference figure data indicating the changed portion with respect to the figure data of the reference version for each version.

[0015]

In the CAD library management device thus constructed, the center device is provided with a CAD library for storing actual graphic data for each standardized data such as symbols and models incorporated in CAD data showing a graphic. A plurality of CAD devices that actually create or edit CAD data representing a figure are connected to this center device via a communication network.

The CAD library of the center device stores graphic data of each standardized data and graphic acquisition information for obtaining each version of the graphic data in the corresponding standardized data for each standardized data.

When the CAD device creates new CAD data, the inputted standardized data is transmitted to the center device via the communication network as a new graphic data transfer request, and the center device corresponds to the standardized data. Since the latest version of figure data will be sent,
This latest version of graphic data is used.

When the CAD device corrects or diverts the created CAD data, the standardized data with the version included in the CAD data is sent to the center device via the communication network as a designated graphic data transfer request. When transmitted, the center device transmits the specified version of the graphic data in the corresponding standardized data, and thus the specified version of the graphic data is used.

According to another aspect of the invention, since the graphic data for each version is stored in the CAD library of the center device, the graphic data of the specified version can be immediately returned from the CAD device.

Further, according to another aspect of the invention, since the CAD graphic of the center device stores difference graphic data indicating a changed portion with respect to the graphic data of the reference version, when the CAD device specifies a version, the reference version is changed. The graphic data corresponding to the specified version is created from the graphic data. Then, the created graphic data is returned to the requesting CAD device.

[0021]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing a CAD system in which a CAD library management apparatus of the embodiment is incorporated.

For example, one center device 2 and a plurality of CAD devices 3 are connected to a transmission line 1 of a communication network such as a LAN. In the center device 2, a transfer request receiving unit 4 for receiving a transfer request for graphic data from each CAD device 3, a transfer data generating unit 5 for generating graphic data to be transferred to the CAD device 3, and various graphic data. A CAD library 6 for storing and a data transmitting unit 7 for transmitting graphic data to the CAD device 3 are provided.

In the CAD library 6, as shown in FIG. 3, for each standardized data such as symbols, models, cells, etc. incorporated in CAD data showing a figure, that is, for each symbol name, model name, cell name. Each version of the graphic data including the graphic data of the oldest reference graphic data (version 1) is stored.

The transfer data generation unit 5 includes a data search unit 5a for searching each figure data of the CAD library 6,
It is composed of a data reading section 5b for creating graphic data to be transferred to the CAD device 3.

On the other hand, each CAD device 3 connected to the center device 2 via the transmission line 1 of the communication network.
A data transfer requesting unit 8 for requesting the graphic data transfer to the center device 2, a data receiving unit 9 for receiving the graphic data transmitted from the center device 2, and a CAD actually
It is composed of a CAD device body 10 for creating data.

In the CAD apparatus main body 10, a designer actually designs a circuit diagram or a simulation diagram to create new CAD data showing a figure, or to modify already created CAD data. Perform the work that is used when other CAD data is created. In this case, a circuit diagram or a simulation diagram is displayed on the display screen of the CRT to execute the above work.

Actual graphic data of standard data such as symbols, models, and cells to be incorporated into or already incorporated in the CAD data is required in the process of creating the new CAD data or the process of modifying or reusing the created CAD data. .

The data transfer requesting unit 8 is composed of a transfer instructing unit 8a for issuing a transfer instruction for graphic data and a transfer request transmitting unit 8b for transmitting a graphic data transfer request to the center device 2.

Next, the operation of the CAD library management device thus constructed will be described. First, the operation of transmitting a graphic data transfer request from the CAD device 3 to the center device 2 via the communication network will be described.

FIG. 2 is a diagram showing the flow from the transmission of the graphic data transfer request from the CAD device 3 to the center device 2. C that has already been created in the CAD device body 10
When the drawing of the AD data is modified / diverted, the circuit diagram data (CAD data) 11 is read when the CAD device body 10 reads it into the device.
Library information (normalized data) 12 such as a symbol included in 11 is automatically extracted and sent to the transfer instruction unit 8a of the data transfer request unit 8.

The transfer instructing section 8a creates a specified graphic data transfer request in which the symbol name and version are specified from the received library information (normalized data) 12, and sends it to the next transfer request transmitting section 8b.

In the embodiment of FIG. 2, the symbol name is [A] and the version is [2]. Therefore, the format of the designated figure data transfer request is as follows.

[Get symbol, A, ver2] The transfer request transmission unit 8b incorporates the specified graphic data transfer request into a predetermined transmission format including destination and source information, and transmits it to the center apparatus 2 via the transmission line 1. Send.

When a new drawing is created in the CAD device main body 10, the name of the standardized data (symbol name) such as a symbol to be incorporated in the CAD data is designated by the designer in the process of creating the CAD data. If specified, the name (symbol name) of this standardized data is the data transfer request unit 8
Is sent to the transfer instruction unit 8a.

The transfer instructing section 8a creates a new graphic data transfer request incorporating this symbol name from the name (symbol name) of the received standardized data, and the next transfer request transmitting section 8a.
Send to b. In the case of a new version, there is no version, so the version part is set to [NEW] indicating the latest version.

In the embodiment of FIG. 2, since the symbol name is [A], the format of the new graphic data transfer request is as follows. [Get symbol, A, ver, NEW] The transfer request transmitter 8b incorporates the specified graphic data transfer request into a predetermined transmission format including destination and source information and transmits it to the center apparatus 2 via the transmission path 1. To do.

Next, the operation of the center device 2 which receives the new graphic data transfer request or the designated graphic data transfer request from the CAD device 3 will be described with reference to FIG. The graphic data transfer request transmitted from the CAD device 3 is received by the transfer request receiving unit 4. The transfer request reception unit 4 sends the received graphic data transfer request to the transfer data generation unit 5 as a graphic data generation instruction.

The data retrieval section 5a of the transfer request receiving section 5 is
If the received graphic data transfer request is a designated graphic data transfer request designating a version, the CAD file 6 is searched using the symbol name and version included in this designated graphic data transfer request as a search keyword.

The data retrieval unit 5 of the transfer request receiving unit 5
If the received graphic data transfer request is a new graphic data transfer request designating the [NEW] version, the CAD file 6 is searched using the symbol name and the latest version included in this new graphic data transfer request as search keywords. . In this case, if the graphic data of a plurality of versions with the same symbol name exist, it indicates that the graphic data of the latest version is searched.

As a result of the search by the data search unit 5a, if the corresponding graphic data exists, the data reading unit 5b.
Send the symbol name and version of the corresponding graphic data to. In FIG. 3, it is transmitted in the format of [A ver2].

The data reading section 5b uses the actual graphic data corresponding to the received symbol name and version as CA.
The data is read from the D library 6, the symbol name and the version are added, and the data is sent to the data transmitting unit 7.

The data transmission unit 7 incorporates the received graphic data with the symbol name and version into a predetermined transmission format and transmits it via the transmission line 1 to the CAD device 3 which is the transmission request transmission source.

Next, the CAD device 3 receives the graphic data with the symbol name and the version from the center device 2.
The operation will be described with reference to FIG. The transferred graphic data with the symbol name and version transmitted from the center device 2 is received by the data receiving unit 9 and transferred to the CAD device body 10.

The CAD device body 10 develops an image of the actual graphic 13 by substituting the received graphic data for the corresponding symbol name (standardized data name) of the circuit diagram data (CAD data) 11. , Eg CRT
Display on the display screen.

In the process of creating a new figure, the received figure data is displayed as it is by developing the actual figure 13 as an image. In the CAD library management device configured as described above, the C library created in the CAD device 3 is stored in the CAD library 6 of the centimeter device 2.
The actual figure data of the standardized standardized data such as each symbol, each model, and each cell incorporated in the AD data are
It is stored and held for each version.

Then, the symbol required by the designer in the CAD device 3 in the process of creating new CAD data such as a circuit diagram,
When a data name (symbol name) of standardized data such as a model and a cell is designated, the center device 2 sends the latest version of graphic data corresponding to the standardized data,
It is displayed as a graphic 13 on the CRT display device. Therefore, the designer can create CAD data using the latest version of the graphic data.

Further, when the CAD device 3 corrects or diverts the created CAD data, the figure of the actual designated version of the standardized data such as symbols, models and cells with the version included in the CAD data is added. Data is transmitted from the center device 2 and the graphic 13 is displayed on the CRT display device.
Is displayed as. The designer can correct the CAD data or use it for other CAD data by using the graphic data of the designated version.

As described above, since the optimum version of the graphic data is always automatically obtained, the designer can create the CAD data without considering the version at all. Modification,
Since the diversion work can be performed by using symbols, models, cells, etc., the work load and the mental load on the designer can be significantly reduced.

Further, since it is possible to prevent human error such as incorrect version designation from occurring, the reliability of the CAD system as a whole can be improved. FIG. 5 is a block diagram showing a schematic configuration of a CAD system incorporating a CAD library management device according to another embodiment of the present invention. The same parts as those in the embodiment system shown in FIG. 1 are designated by the same reference numerals, and detailed description of the overlapping parts will be omitted.

Each CA in the CAD system of this embodiment
D device 3 is each CAD device 3 of the CAD system shown in FIG.
Is the same as Further, the CA provided in the center device 2
In the D library 6a, as shown in FIG. 6, for each standardized data such as symbols, models, and cells to be incorporated in CAD data showing a figure, that is, for each symbol name, model name, and cell name, a reference version is prepared. Is stored as the reference graphic data 14, and the differential graphic data 15 indicating the changed portion with respect to the reference graphic data 14 is also stored.

Further, the reference graphic data 14 includes a version [which indicates which version of the graphic data of each version of the standardized data such as symbols, models, cells, etc. ver]
Is attached. If [NEW] is set in the version [ver] part, it means that the reference graphic data is the latest version of the graphic data.

In addition, in the transfer data generating section 5, a data creating section 5c is provided in addition to the above-mentioned data searching section 5a and data reading section 5b. This data creation unit 5c
Is the reference figure data 1 read by the data reading section 5b
The specified version of the graphic data is created from 4 and the differential graphic data 15.

Next, the operation of the CAD library management device thus constructed will be described. The operation of the CAD device 3 is exactly the same as the operation of the CAD device 3 of the embodiment apparatus shown in FIG. The operation of the center device 2 will be described here.

The graphic data transfer request transmitted from the CAD device 3 is received by the transfer request receiving unit 4. The transfer request reception unit 4 sends the received graphic data transfer request to the transfer data generation unit 5 as a graphic data generation instruction.

The data retrieval section 5a of the transfer request receiving section 5
If the received graphic data transfer request is a designated graphic data transfer request designating a version, the CAD file 6a is searched using the symbol name and version included in this designated graphic data transfer request as a search keyword.

The data retrieval unit 5 of the transfer request receiving unit 5
If the received graphic data transfer request is a specified graphic data transfer request specifying the [NEW] version, the CAD file 6a uses the symbol name and the latest version included in the specified graphic data transfer request as search keywords.
To search.

In this case, if the graphic data of a plurality of versions with the same symbol name exist, it indicates that the graphic data of the latest version is searched. Further, if the reference graphic data 14 to which the version of [NEW] is attached is present in the graphic data of each version of the corresponding symbol name, the graphic data of the version to which this [NEW] is attached is unconditionally searched.

As a result of the search by the data search unit 5a, if the corresponding version of the graphic data exists, the symbol name and the version of the corresponding graphic data are transmitted to the data reading unit 5b. In FIG. 6, it is transmitted in the format of [A ver2].

The data reading section 5b sends the received reference data 14 of the symbol name and version and the difference graphic data 15 to the data creating section 5c. Data creation unit 5c
Is the reference figure data 1 read by the data reading section 5b
4 and the difference graphic data 15 to create a specified version of the graphic data, attach the symbol name and the version, and send the data to the data transmission unit 7.

The data transmission unit 7 incorporates the received graphic data with the symbol name and version into a predetermined transmission format, and transfers the transmission request via the transmission line 1 to the C of the transfer request transmission source.
It is transmitted to the AD device 3.

Further, the data reading unit 5b determines that the symbol name and version of the corresponding graphic data received from the data searching unit 5a is [A ver NEW] and the version searched by the data searching unit 5a is [NEW]. When the graphic data 14 is included, only the reference graphic data 14 of [NEW] is read without reading the differential graphic data 15.
Then, the graphic data of the latest version of the read [NEW] is attached to the symbol name and the version and transmitted to the data creating unit 5c.

The data creating section 5c sends the latest version of the graphic data without the differential graphic data 15 to the data transmitting section 7 with the symbol name and the version.
The data transmission unit 7 incorporates the received graphic data with the symbol name and version into a predetermined transmission format, and transmits it via the transmission line 1 to the CAD device 3 which is the transmission source of the transfer request.

Also in the CAD library management apparatus thus constructed, the center apparatus 2 responds to the designated graphic data transfer request received from the CAD apparatus 3 and sends the designated version of the graphic data of the corresponding symbol, model or cell to the CAD apparatus. 3 and the latest graphic data of the corresponding symbol, model or cell can be returned to the CAD device 3 in response to a new graphic data transfer request.

Therefore, it is possible to obtain substantially the same effect as the device of the previous embodiment shown in FIG. The present invention is not limited to the device of the embodiment shown in FIG.

For example, as the graphic data for each version stored in the CAD library 6a, only the differential graphic data for one predetermined reference graphic data may be stored. In this case, the storage capacity of each version can be reduced, and the required storage capacity of the CAD library can be reduced.

[0066]

As described above, in the CAD library management apparatus of the present invention, standardized data such as symbols and models to be incorporated into CAD data is stored in the center apparatus connected to each CAD apparatus via the communication network. It is stored and held in a CAD library together with information for obtaining actual graphic data and graphic data for each version.

Therefore, in each CAD device, C
It is not necessary to store a dedicated CAD library for each CAD data created by an AD device, and new CAD
The latest version of figure data is automatically obtained when creating the data, and for the created CAD data,
The graphic data at the time of creation is automatically obtained, the work load on the designer can be significantly reduced, and the use of an incorrect version of the graphic data is prevented in advance, and the reliability of the design work can be improved.

[Brief description of drawings]

FIG. 1 is a block diagram showing the configuration of a CAD system in which a CAD library management device according to an embodiment of the present invention is incorporated.

FIG. 2 is a diagram showing an operation of a CAD device in the device of the embodiment.

FIG. 3 is a diagram showing an operation of a center device in the device of the embodiment.

FIG. 4 is a diagram showing an operation of a CAD device in the device of the embodiment.

FIG. 5 is a block diagram showing the configuration of a CAD system in which a CAD library management device according to another embodiment of the present invention is incorporated.

FIG. 6 is a diagram showing an operation of a center device in the device of the embodiment.

[Description of Codes] 1 ... Transmission path, 2 ... Center device, 3 ... CAD device, 4 ... Transfer request receiving unit, 5 ... Transfer data generating unit, 5a ... Data detecting unit, 5b ... Data reading unit, 5c ... Data creation Department,
6, 6a ... CAD library, 7 ... Data transmission section, 8 ...
Data transfer requesting unit, 8a ... Transfer instructing unit, 8b ... Transfer request transmitting unit, 9 ... Data receiving unit, 10 ... CAD device body, 1
0 ... Circuit diagram data (CAD data), 13 ... Graphic, 14
… Reference graphic data, 15… Difference graphic data

Claims (3)

[Claims] 1. A center device having a CAD library for storing actual graphic data for each standardized data such as symbols and models incorporated in CAD data representing a graphic, and connection to the center device via a communication network. A plurality of CAs for creating CAD data showing the graphic
In a CAD library management device in a CAD system including a D device, the center device is stored in the CAD library together with the graphic data of each standardized data, and each version of the standardized data corresponding to each standardized data is stored. Of the corresponding standardized data from the CAD library using the graphic acquisition information in response to a new graphic data transfer request specifying the standardized data received from each CAD device. The latest graphic data acquisition means for obtaining the latest version of graphic data, and the graphic acquisition information from the CAD library in response to a specified graphic data transfer request specifying the version and standardized data received from each CAD device. Specified figure to obtain the specified version of figure data of standardized data Data acquisition means and graphic data transmission means for attaching a version to the graphic data acquired by the graphic data acquisition means and returning the version to the CAD device of the transfer request source, wherein each CAD device is a new CAD data The new graphic data transfer request transmitting means for transmitting the standardized data input at the time of creating the new graphic data transfer request to the center device, and the version included in this CAD data when the created CAD data is modified or diverted. Using the specified graphic data transfer request transmitting means for transmitting the standardized data as a specified graphic data transfer request to the center device, and creating, modifying, or modifying the CAD data by using the version-added graphic data received from the center device. CA having processing support means for diverting
D library management device. 2. The CAD library management device according to claim 1, wherein the graphic acquisition information for obtaining the graphic data of each version is the graphic data of the corresponding version stored for each version. 3. The graphic acquisition information for obtaining the graphic data of each version is differential graphic data indicating a changed portion with respect to the graphic data of the reference version for each version. CAD library management device.