JPH05151285A - Network environment type cad system - Google Patents

Abstract

PURPOSE:To effectively utilize drawing data distributed to plural computers. CONSTITUTION:A system connected to plural computers through a network is provided with a CAD system 1 to be operated by a user and a server part 10 connected through a network 15. The sever part 10 can be operated even when the CAD system 1 is not operated, receives a drawing table request, a drawing reading request, a drawing writing request, a drawing deleting request, a network drawing management file updating request which are outputted from the CAD system 1 being executed by its own computer and a drawing reading request, a drawing writing request, a drawing deleting request, and network drawing management file updating request which are outputted from a server part being executed by another computer on the network 15 and executes their corresponding processing. At the time of processing, a network drawing managing file 14 storing information relating to drawing data is used.

Description

Detailed Description of the Invention

[0001]

The present invention relates to a network environment type CA.
It relates to the D system.

[0002]

2. Description of the Related Art Most conventional CAD systems assume a stand-alone environment used in a single computer, and do not have a network configuration.
Alternatively, even if the computer is connected to another computer via a network, the other computer is CAD
The system did not recognize it.

Therefore, the drawing data handled by the CAD system is stored in a storage device such as a disk device existing in a computer that executes the CAD system. If necessary, the drawing data can be stored in the computer itself. I was reading, writing, and deleting.

[0004]

By the way, due to the expansion of use of CAD systems, the number of people operating a CAD system on a plurality of computers is increasing. However, in the conventional CAD system, As mentioned above, since it is assumed to be a stand-alone environment,
There is a drawback that the drawing data scattered on a plurality of computers cannot be used smoothly.

That is, when the network configuration is not adopted, it is necessary to temporarily record the drawing data on a floppy disk, a magnetic tape or the like and transfer the drawing data as a medium, which is very troublesome.

In the case of being connected to another computer via a network, the drawing data must be transferred between the computers by using a general-purpose file copy tool, etc., and then read into the CAD system.
Since the user had to perform a series of operations, it was very troublesome.

Also, drawing data such as drawing frames and parts lists that can be commonly referred to by CAD systems on a plurality of computers are stored in a storage device of each computer that executes the CAD system. It had to be kept, and there was no use of memory resources.

Further, since the CAD system considers only the storage device of its own computer as the storage location of the drawing data, the user uses the CAD system by the same computer until the design is completed by the CAD system and the drawing is completed. It had to be done and it was difficult to change the work place. If you want to run the CAD system on another computer by all means, bring the drawing data in the middle of design to a floppy disk or bring it in, or use the file copy tool between computers on the network before starting the CAD system. The data had to be copied, which was not easy.

The present invention has been proposed in view of the above points, and an object thereof is to provide a network environment type CAD system capable of effectively utilizing drawing data scattered on a plurality of computers without waste. To provide.

[0010]

In order to achieve the above object, the present invention provides a CAD system operated by a user in each computer in a system in which a plurality of computers are connected via a network, and the CAD system. It is connected to the system via a network and can operate even when the CAD system is not operating. It manages the information related to the drawing data and the server part that provides services such as reading, writing, deleting, and list display of the drawing data. A network drawing management file is provided.

[0011]

In the network environment type CAD system of the present invention, the CAD system is executed in a plurality of computers connected via the network. If input / output of drawing data becomes necessary in the process of execution, CA
The D system requests the server unit connected via the network to read and write drawing data. The server unit can operate even when the CAD system is not operating, and requests drawing list, drawing reading request, drawing writing request, drawing deletion request, network drawing management from the CAD system running on its own computer. It receives a file update request, a drawing reading request, a drawing writing request, a drawing deletion request, and a network drawing management file updating request from a server unit that is being executed on another computer on the network, and performs corresponding processing. Further, at the time of processing, a network drawing management file which stores information about drawing data such as a computer name on the network where drawing data is stored, a network address, a drawing name, drawing creation / update date, drawing size, etc. is used.

[0012]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a network environment type CAD of the present invention.
It is a block diagram which shows one Example of a system.

In FIG. 1, the present embodiment is designed to prepare a drawing.
A CAD system 1 that performs the main processing such as correction, a keyboard 6, a tablet 7 and a mouse 8 that are operated by the user to convey their intentions to the CAD system 1, drawings that are being created / modified, commands, a list of drawings, etc. A display 9 for displaying information to the user and a server unit 10 for storing and managing drawing data in a storage device (not shown) such as a disk device.
And a network drawing management file 14 storing information for managing drawing data stored in storage devices of a plurality of computers, and a network 15 for performing data transmission within the own computer and with other computers. It consists of

The CAD system 1 has a CAD data input section 2 for inputting user's instructions and data from the keyboard 6, tablet 7, and mouse 8, and a user's will from the instructions and data input by the CAD data input section 2. CAD to judge
It includes a command analysis unit 3, a CAD command execution unit 4 that executes a CAD command such as drawing creation and correction based on the analysis result of the CAD command analysis unit 3, and a display control unit 5 that controls the display 9. ..

The server unit 10 includes a server input unit 12 and a server output unit 13 for performing data transmission with the server unit of the CAD system 1 of the own computer and another computer (not shown) via the network 15, and the server unit 10 of the own computer. It includes a server processing execution unit 11 that performs various processes in response to a request for drawing data from the server unit of the CAD system 1 or another computer.

Further, the network drawing management file 14
Is the computer name on the network where the drawing data is actually stored, the network address, the drawing name,
Information such as drawing creation / update date and drawing size is stored.

Although the CAD system 1 is started up and used as necessary, the server unit 10
Is always executed as a background job when the computer is running, and is always in an operable state.

Other computers connected via the network 15 have the same configuration.

The operation of the above embodiment will be described below.

The user operates the keyboard 6, tablet 7 and mouse 8 to input various instructions and data to the CAD system 1.

The CAD data input unit 2 inputs those data and gives them to the CAD command analysis unit 3.

The CAD command analysis section 3 analyzes the input data and gives a corresponding command to the CAD command execution section 4.

The CAD command execution unit 4 executes the command to create / correct the drawing, etc., and controls the display control unit 5 to display on the display 9 the items to be displayed to the user in the process of execution. I do.

The CAD command execution unit 4 requests the server unit 10 of its own computer via the network 15 to execute a command relating to the reading, writing, deletion, list display, etc. of drawing data.

In the case of the list display, the server unit 10 refers to the network drawing management file 14 and returns the drawing list information.

In addition, reading and writing of drawing data,
In the case of deletion, the computer on the network 15 where the drawing data exists is identified by referring to the network drawing management file 14, and if it is the own computer, the process such as reading, writing, and deleting by itself is performed, and the other computer performs it. If there is, a request is made to the server section on another computer via the network 15.

When there is a request from a server unit on another computer via the network 15, the server unit 1
0 performs processing according to the request.

In order to match the contents of the network drawing management file 14 existing in each computer,
The server unit 10 also accepts services for those updates and manages the network drawing management file 14.

Hereinafter, the processing of the server unit 10 will be described in more detail with reference to FIGS.

First, the server processing execution unit 11 of the server unit 10 operates the server input unit 1 via the network 15.
The request received in 2 is analyzed (step S0). There are five types of requests: drawing list request, drawing reading request, drawing writing request, drawing deletion request, and network drawing management file update request from the CAD command execution unit 4 of the CAD system 1 being executed on the own computer. And a drawing reading request, a drawing writing request, a drawing deletion request, and a network drawing management file update request from the server unit that is being executed on another computer on the network 15 are assumed. .. There is no drawing list request from the server unit running on another computer on the network 15 because there is a network drawing management file on each computer and there is no need to make an inquiry to another.

CAD in which the request is being executed on its own computer
If the request is for drawing list information from the command execution unit 4 (step S1), a list of drawing names stored in the storage devices (disk devices) of all the computers on the network 15 from the network drawing management file 14 is displayed. Information is taken out (step S11), and server output unit 1
3, the drawing list information is transmitted to the requesting CAD command execution unit 4 via the network 15 (step S12).

The CAD command execution unit 4 receives this drawing list information and shows it to the user in the form of a list of drawing names on the display 9 by the display control unit 5. Note that a drawing can be selected from a list on the screen so that it can be specified, and the computer name or drawing name in which drawing data is stored is executed by the keyboard 6 when a command such as reading, writing, or deleting a drawing is executed.
Make sure you don't have to enter from.

Further, in displaying the drawing list information, processing such as displaying only the drawing data stored in the storage device of a specific computer can be carried out for convenience of use.

On the other hand, when the request is a drawing reading request from the CAD command execution unit 4 being executed on the own computer (step S2), the network drawing management file 14 is referred to and the specified drawing data exists. The computer to be used is checked, and a request for reading the designated drawing data is transmitted to the server unit running on the computer (step S21).

Next, the designated drawing data is waited for and transmitted from the server unit executing on the requesting computer (step S22), and the received drawing data is executed on the CAD computer executing on the requesting own computer. It is transmitted to the command execution unit 4 (step S23).

On the other hand, if the request is a drawing write request from the CAD command execution unit 4 being executed on the own computer (step S3), the computer which writes the drawing is checked by referring to the network drawing management file 14. (Step S31), a drawing data write request is transmitted to the server unit running on the corresponding computer (step S32).

Then, after receiving the write permission from the server unit running on the requested computer (step S33), the drawing data is transmitted (step S3).
4).

Then, the end report is transmitted to the CAD command executing section 4 which is being executed on the requesting own computer (step S35).

On the other hand, if the request is a drawing deletion request from the CAD command execution unit 4 being executed on the own computer (step S4), there is drawing data to be deleted by referring to the network drawing management file 14. The computer to be used is checked (step S41), and a drawing data deletion request is transmitted to the server unit running on the corresponding computer (step S42).

Then, the result report is received from the server unit running on the requested computer (step S4).
3), an end report is transmitted to the CAD command execution unit 4 being executed on the requesting own computer (step S4)
4).

On the other hand, if the request is a drawing reading request from the server unit running on another computer on the network 15 (step S5), the designated drawing exists in the storage device of the own computer. It is checked (step S51), and if it exists, the designated drawing data is transmitted to the server unit executing on the other requested computer (step S52). If it does not exist,
A report indicating that the designated drawing data does not exist is transmitted (step S53).

On the other hand, if the request is a drawing writing request from the server unit being executed on another computer on the network 15 (step S6), the status of the storage device of the own computer is checked (step S61). ..

If the writing is possible, the writing permission is transmitted to the server unit running on the other computer on the requesting network 15 (step S62), and the server unit running on the other computer sends the permission. The drawing data is received (step S63), the drawing data is written to the storage device of the own computer (step S64), and the drawing data writing result report (normal end / abnormal end) is executed on another computer on the requesting network 15. It is transmitted to the internal server unit (step S65). If the writing is not possible, a report indicating that the drawing data cannot be written is transmitted (step S66).

On the other hand, if the request is a drawing deletion request from the server unit running on another computer on the network 15 (step S7), the designated drawing data exists in the storage device of the own computer. It is checked whether or not (step S71).

If the specified drawing exists, the drawing data is deleted (step S72), and the deletion result report (normal end / abnormal end, etc.) of the drawing data is executed on another computer on the requesting network 15. It is transmitted to the inside server unit (step S73). If the designated drawing does not exist, a report indicating that the drawing data does not exist is transmitted (step S74).

On the other hand, if the request is a network drawing management file update request from the CAD command execution unit 4 being executed on the own computer (step S8), the network management file 14 is updated as specified (step S8). (S81), the update information is transmitted to all server units running on other computers on the network 15 (step S82).

On the other hand, if the request is a network drawing management file update request from the server unit being executed by another computer on the network 15 (step S).
9) The network management file 14 is updated as specified (step S91). No report will be made in this case.

In this way, between the CAD command execution unit 4 running on the own computer and the server unit 10 running on the own computer, and between the server unit 10 running on the own computer and the network 15. The drawing data existing in the storage devices of all the computers on the network 15 is CAD by transmitting and receiving information to and from the server unit running on the other computer above.
Users of the system can recognize and use it freely.

Further, for transmitting and receiving this information, international standards such as OSI (Open System Interconnection) and TCP / I are used.
By adopting a de facto standard protocol such as P, the computer environment surrounding the users of the CAD system becomes large in scale, and even in a multi-vendor environment, it is possible to easily connect between different models.

[0051]

As described above, the network environment type CAD system of the present invention has the following effects.

Since the CAD system can recognize the drawing data existing in the storage device of another computer on the network in the same manner as the drawing data in the own computer, the user of the CAD system is aware of the network address of the computer. Without doing so, the drawing data stored in the storage device of another computer on the network can be easily read, written, and deleted, and the drawing data can be effectively used.

When drawing data is transferred between users of the CAD system, it is temporarily recorded on a medium such as a floppy disk or magnetic tape, or the CAD system is interrupted to execute a file copy tool between computers on the network. Since there is no need to do so, the work efficiency can be improved.

The designer who is the user of the CAD system does not need to be aware of the computer having the storage device that stores the drawing data being designed, and the CAD system can be used by using an available computer on the network. Since it is possible to execute and design, it is possible to improve work efficiency.

Drawing data such as drawing frames and parts lists that can be commonly referred to by CAD systems on a plurality of computers may be stored in a storage device of one computer on the network. It is possible to save storage resources.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing an embodiment of a network environment type CAD system of the present invention.

FIG. 2 is a diagram showing processing of a server processing execution unit.

FIG. 3 is a diagram showing processing of a server processing execution unit.

FIG. 4 is a diagram showing processing of a server processing execution unit.

[Explanation of symbols]

 1 ... CAD system 2 ... CAD data input unit 3 ... CAD command analysis unit 4 ... CAD command execution unit 5 ... Display control unit 6 ... Keyboard 7 ... Tablet 8 ... Mouse 9 ... Display 10 ... Server part 11 ... Server processing execution part 12 ... Server input part 13 ... Server output part 14 ... Network drawing management file 15 ... Network

Claims (3)

[Claims] 1. In a system in which a plurality of computers are connected via a network, each computer is connected to a CAD system operated by a user, and the CAD system is connected via a network to the CAD system.
It is possible to operate even when the CAD system is not operating, and has a server unit that performs services such as reading, writing, deleting, and list display of drawing data, and a network drawing management file that manages information related to drawing data. Network environment type CAD system. 2. The network drawing management file holds information such as computer name, network address, drawing name, drawing creation / update date, drawing size, etc. on the network where drawing data is stored. A network environment type CAD system according to item 1. 3. The server unit includes a drawing list request, a drawing reading request, a drawing writing request, a drawing deletion request, a network drawing management file update request, and a network drawing management file update request made by a CAD system running on the computer. The network environment type C according to claim 1 or 2, wherein a drawing reading request, a drawing writing request, a drawing deleting request, and a network drawing management file updating request from a server unit being executed on the computer are accepted.
AD system.