JPH04362783A - Cad system having simultaneous concurrent processing function at plural terminals - Google Patents

Abstract

PURPOSE:To concurrently perform the editing of a CAD drawing without dividing a drawing for plural terminals and also to flexibly cope with the change of a design at the time of editing. CONSTITUTION:A task manager 2 controlling an editing result for the same CAD drawing on a DB(database) for a work 4 at each terminal of 1a, 1b and input/output handlers 7a, 7b controlling the delivery and receipt of data between this task manager 2 and self-terminals 1a, 1b are provided. The editing result at the self-terminals 1a, 1b is transmitted to the task manager 2 by the input/ output handlers 7a, 7b. The task manager 2 receiving this updates the DB for a work 4 and notifies other terminals 1b, 1a by transmitting the received editing result to the input/output handlers 7a, 7b of other terminals 1b, 1a.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a CAD system equipped with a plurality of terminals suitable for editing CAD drawings.

0002

2. Description of the Related Art In drawing editing work in a CAD (computer-aided design) system, it has been common practice to edit one drawing database using one terminal. Therefore, when editing large-scale drawings, a method used was to divide the drawing, edit each part on separate terminals, and then combine the drawing databases obtained from each terminal into one. .

However, in the case of drawings such as circuit diagrams that have internet information and are related to each other within the drawing, there are problems in that it is difficult to divide and combine them, and it is difficult to flexibly handle design changes during the editing stage. There was a problem that it could not be addressed.

[0004] In reality, therefore, instead of dividing drawings into a plurality of parts, methods such as time-sharing the usage time of one terminal and editing by a plurality of workers (operators) have often been adopted.

[0005]

[Problems to be Solved by the Invention] As mentioned above, in conventional CAD systems, it was common for one terminal to edit one drawing database. The first method involves time-sharing and editing by a plurality of workers, or the second method involves dividing a drawing, editing it on multiple terminals, and then composing the drawing databases.

[0006] However, the first method has the problem of prolonging the design period, and the second method has the problem of being difficult to divide and combine, and not being able to flexibly deal with design changes during editing. .

[0007] This invention was made in view of the above circumstances, and its purpose is to allow editing of CAD drawings to be performed simultaneously from multiple terminals without dividing the drawings, thereby shortening the design period, as well as eliminating design changes during editing. The objective is to provide a CAD system that can flexibly deal with various situations.

[0008]

[Means for Solving the Problems] The present invention provides a management means for managing a plurality of terminals and editing results for the same CAD drawing in each of these terminals, and updating a drawing database based on the CAD drawing editing results in each terminal. and an input/output means provided for each terminal to transmit the CAD drawing editing results on the corresponding terminal to the management means, and to receive the CAD drawing editing results on other terminals from the management means and notify the corresponding terminals. It is characterized by having the following.

[0009]

[Operation] In the above configuration, when editing processing is performed on a CAD drawing at a certain terminal, the editing result is notified to the management means by the input/output means corresponding to that terminal.

[0010] The management means updates the drawing database based on the notified CAD drawing editing results, and also sends the editing results to all other terminals, and each of these terminals uses the corresponding input/output means to perform the same processing. Receive editing results. As a result, the editing results at one terminal are sent to all other terminals via the input/output means and shared. This also applies when CAD drawing editing processing is performed on another terminal.

[0011] According to the CAD system having the above configuration, the same drawing can be operated from multiple terminals at the same time, so the construction period can be shortened, especially when editing large drawings, and since there is only one database to edit, There is no hassle of management, and it is possible to flexibly respond to design changes during editing.

0012

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a block diagram showing the configuration of a CAD system according to an embodiment of the present invention.

In FIG. 1, 1a and 1b are terminals such as engineering workstations used for editing operations of CAD drawings, and 2 is a C at each terminal 1a and 1b.
This is a task manager for managing AD drawing editing results. This task manager 2 is provided, for example, in a host device (not shown).

3 is a CAD drawing database (hereinafter referred to as CAD drawing DB) for storing CAD drawings (CAD drawing data); 4 is a working database used for editing CAD drawings (hereinafter referred to as working DB) It is. The CAD drawing DB3 and work DB4 are accessed by the task manager 2.

5a and 5b are CAs for terminals 1a and 1b.
D Display handler that controls the display of drawings, etc. 6a and 6b are CA
A CAD module with a CAD drawing editing processing function realized by a D drawing editing application program, 7
Input/output handlers a and 7b serve as input/output interfaces between the task manager 2 and the terminals 1a and 1b (internal CAD modules 6a and 6b). Input/output handler 7
a and 7b transmit the CAD drawing editing results on the terminals 1a and 1b to the task manager 2, and
The results of CAD drawing editing performed at other terminals are then passed to the corresponding CAD modules 6a and 6b. Display handlers 5a, 5b, CAD modules 6a, 6b
The input/output handlers 7a and 7b are built into the terminals 1a and 1b.

Next, the operation of the configuration shown in FIG.
An example of a case where an editing operation is performed on an AD drawing will be described with reference to the operation diagram of FIG. 2. In the system of Figure 1,
The CAD drawings (data thereof) to be edited by the terminals 1a and 1b are stored in the CAD drawing DB3. This CAD
When editing a drawing, a copy is placed in the work DB 4. Then, editing is performed on the CAD drawings on the work DB4, and after the editing is completed, the CAD drawings on the CAD drawing DB3 are edited.
The D drawing is rewritten into an edited CAD drawing on the working DB4.

Now, assume that the editing operation of the CAD drawing is performed on the terminal 1a while a copy of the CAD drawing in the CAD drawing DB3 is placed in the working DB4. In this case, drawing editing information (change information) at the terminal 1a is transmitted to the input/output handler 7a as shown in FIG.

[0018] As a result, the input/output handler 7a
Notify the task manager 2 of the change information in a. At the same time, the input/output handler 7a transmits the change information (the content of the CAD drawing change) to the CAD module 6a.

The CAD module 6a displays necessary graphic information (eg, movement, addition, etc. of a graphic) on the terminal 1a via the display handler 5a, based on the change information transmitted by the input/output handler 7a.

On the other hand, as described above, when a change occurs in the CAD drawing on the terminal 1a and the change information is notified from the input/output handler 7a on the terminal 1a side, the task manager 2 receives the change information and performs the work. CA on DB4
Change the D drawing and transfer the change information to the input/output handlers on all other terminals. As a result, in the system of FIG. 1, the change information received by the task manager 2 is transferred to the input/output handler 7b on the terminal 1b side, as shown in FIG.

The input/output handler 7b on the terminal 1b side receives the change information (at the terminal 1a) transferred from the task manager 2, and transmits the change information to the CAD module 6b. As a result, the CAD module 6b receives change information from the task manager 2 via the input/output handler 7b, in the same way as when change information is sent from the input/output handler 7b when editing operations are performed on a CAD drawing on the terminal 1b. Based on the change information at the terminal 1a, necessary graphic information is displayed on the terminal 1b via the display handler 5b. As a result, the operator of terminal 1b can change the CAD drawing that he is editing on another terminal (terminal 1a in this case).
) can be visually confirmed on the screen.

Conversely, when a change occurs in the CAD drawing at the terminal 1b, the change information is sent to the input/output handler 7.
b to the task manager 2, and the task manager 2 transmits it to the CAD module 6a via the input/output handler 7a on the terminal 1a side. Then, the CAD module 6a displays the CAD drawing change result on the terminal 1a via the display handler 5a, and the other terminal (terminal 1b)
The operator of the terminal 1a is notified that a change in the CAD drawing has occurred.

[0023] In the above embodiment, the case where there are two terminals has been explained, but the present invention can also be applied to a CAD system equipped with three or more terminals.
It is now possible to edit CAD drawings simultaneously on more than one terminal. Furthermore, the present invention is applicable not only to the exchange of editing data between CADs of the same type, but also to the exchange of data between CADs of different types.

[0024]

[Effects of the Invention] As detailed above, according to the present invention,
A management means is provided to manage the editing results for the same CAD drawing on each of a plurality of terminals and update the drawing database with the editing results on each terminal, and also to convey the editing results on each terminal to the management means. Since the structure includes an input/output means that receives editing results from other terminals and notifies them to the corresponding terminal, the same drawing can be operated simultaneously from multiple terminals during CAD editing, making it especially easy to The design period for drawings can be shortened.

Furthermore, according to the present invention, the same drawing database can be edited from a plurality of terminals, so there is no management hassle compared to drawing editing using the conventional drawing division method, and data consistency is improved. This guarantees consistency, reduces backtracking work, and allows for flexible handling of design changes during the editing stage.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration of a CAD system according to an embodiment of the present invention.

FIG. 2 is an operation explanatory diagram for explaining the flow of information in the embodiment.

[Explanation of symbols]

1a, 1b...terminal, 2...task manager (management means)
, 3...CAD drawing DB, 4...Work DB, 5a, 5b...
Display handler, 6a, 6b...CAD module, 7a,
7b...I/O handler.

Claims (1)

[Claims] Claim 1: A plurality of terminals used for editing operations of CAD drawings, a drawing database for storing CAD drawing editing results at each of the terminals, and a CA at each of the terminals.
D. A management means for managing drawing editing results, and a management means provided for each of the terminals, which transmits the CAD drawing editing results on the corresponding terminal to the management means, and transmits the CAD drawing editing results on other terminals to the management means. and an input/output means for receiving the result from the input/output means for each terminal and notifying the corresponding terminal, and the management means receives the CAD drawing editing result transmitted from the input/output means for each terminal and updates the drawing database,
A CAD system characterized by being configured to transmit the CAD drawing editing results to input/output means of each other terminal.