JP2001249839A - Data processing device - Google Patents

Abstract

(57) [Summary] [PROBLEMS] Data that enables a plurality of people to simultaneously perform modification work on the same three-dimensional shape data and improve the efficiency of the work of integrating the changed parts with each other. A processing device is provided. When a data request is received from clients A and B (S1), a server 1a sends a request to each client.
The dimensional shape data and the change history are transmitted (S2). The client A changes data (S3), and the server 1a
Then, the change difference history and the change difference shape data are transmitted (S4). The server 1a performs a process of reflecting the change in the database (S5), and transmits the change difference history and the change difference shape data received from the client A to the client B. The client B displays the information on the change received from the server a (S6).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a data processing device having a function of transmitting a changed portion in a three-dimensional model.

[0002]

2. Description of the Related Art Normally, three-dimensional shape data created by three-dimensional CAD is stored and stored in a database. When changing the three-dimensional shape, the three-dimensional shape data to be worked is taken out of this database, the change is made, and the data is returned to the database and stored again.

At this time, during the change of the three-dimensional shape data, a third party may retrieve the same three-dimensional shape data from the database, make a change, and return the same to the database. In this case, it is necessary to maintain consistency between the changes made by the two persons. To realize this, usually, an exclusive control function or the like is added to the database side, or a function of integrating data previously stored in the database with data to be stored later is added to the three-dimensional CAD side. Like that.

[0004]

However, in a system in which an exclusive control function is added to a database, there is a problem that change operations cannot be performed simultaneously. Further, in a mechanism in which the function of integrating data stored in the database first and data to be stored later is added to the three-dimensional CAD side, when there are many changed parts that need to be integrated, the integration work is extremely difficult. There is a problem that becomes difficult. As described above, conventionally, when a plurality of persons change the same three-dimensional shape data, it is difficult to maintain the consistency.

An object of the present invention is to make it possible for a plurality of persons to change the same three-dimensional shape data at the same time in parallel, thereby improving the efficiency of the work of integrating the changed parts. An object of the present invention is to provide a data processing device capable of causing the data processing device to perform the processing.

[0006]

To achieve the above object, a data processing apparatus according to the present invention comprises: a server for managing a database of three-dimensional shape data;
A data processing device configured to be connected to a plurality of clients for creating their own three-dimensional shape data by making changes to the three-dimensional shape data via communication means, wherein the server is configured to receive a request from the client; Means for retrieving and transmitting three-dimensional shape data from the database;
Means for performing processing for reflecting the change difference shape data relating to the change request received from the client in the database, and means for transmitting the change difference shape data and the change history data received from the client to another client; Means for requesting the server for three-dimensional shape data to be changed,
Means for transmitting, as the change request, the change difference shape data that is a difference between changes made to the three-dimensional shape data received from the server and the change history data that is a history of the changes made to the server, Means for displaying information about the received change.

[0007] With this configuration, a certain client becomes 3
When a change is made to the three-dimensional shape data, the change is reflected in the database of the server in real time, and other clients who are making changes to the same three-dimensional shape data can also confirm the change in real time. Become like That is, each client can maintain the consistency of the same three-dimensional shape data to be changed in real time.

Further, in the present invention, the server requests a change request for the same three-dimensional shape data from the second client during the process of reflecting the changed difference shape data received from the first client in the database. Is received, the received change request from the second client is queued and removed from the queue after the end of the processing for the first client, and the change request for the second client is Means for executing a process.

[0009] With this configuration, when changes compete at almost the same time, competitive control can be performed smoothly.

Further, in the above-mentioned present invention, when performing the processing for the second client, the server realizes the change included in the change request of the second client by the change of the first client. Determining means for checking whether the processing can be performed, and transmitting a message to the second client to which reason the processing cannot be performed when the processing cannot be performed on the second client as a result of the determination by the determining means. Means.

[0011] With this configuration, a client that cannot realize the content of its own change due to a change of a certain client can reconsider the content of its change by the displayed message and take action.

Further, in the present invention, the server stores and manages the design intention acquired from each client, and the design of the first client which has previously performed the processing for the change request. Means for referring to the intention and adding the design intention of the first client to the message transmitted to the second client, wherein the client inputs the design intention and transmits the design intention to the server Means for adding the design intention to the change request.

With this configuration, a client that cannot realize its own change due to a change of a certain client can determine how to realize the change based on the design intention of the client changed earlier included in the message. When dealing with it, it becomes possible to deal with it more efficiently.

Further, in the above-mentioned present invention, the server stores and manages the authority level given to each client, and when a change request for the same three-dimensional shape data from a plurality of clients conflicts, Means for performing the processing first from a client having a higher authority level.

With this configuration, when a change request for the same three-dimensional shape data from a plurality of clients conflicts, a client with a higher authority level can be prioritized, so that a change request from a client with a higher authority level can be reliably processed. Become like

Therefore, according to the present invention, when a plurality of persons change the same three-dimensional shape, the changes are reflected in the three-dimensional shape data in real time, and when the changes are inconvenient for somebody. And a data processing device provided with a mechanism for solving the problem that another person cannot make a change due to the change.

[0017]

FIG. 1 is a block diagram showing the configuration of a first embodiment of the present invention. In FIG. 1, this embodiment is configured by connecting a plurality of clients 3a, 4a to a server 1a via a LAN 2. Although the number of clients is two in FIG. 1, it is an arbitrary number of two or more.

The server 1a includes a communication unit 11 for communication with each client, a shape data storage unit 12 for storing three-dimensional shape data created by three-dimensional CAD, and a part for each client making changes. A change history storage unit 13 for storing a history (change difference history).

The server 1a retrieves the three-dimensional data requested by the client from the shape data storage unit 12, and converts the changed difference shape data sent from the client into the original three-dimensional shape existing in the shape data storage unit 12. There is provided a shape creating unit 14 that performs a process of reflecting the data on the data, a process of storing the change difference history sent from each client in the change history storage unit 13, and the like.

Further, the server 1a outputs to the shape creating unit 14 the shape data and the history of the change request and the change difference from each client input via the communication unit 11,
Queuing process when a change request from a client conflicts, processing of transmitting the shape data received from the shape creating unit 14 and the shape data and history of the change difference to be displayed on the client to the client via the communication unit 11, And a change request management unit 15 that performs processing for transmitting a message or the like to the client via the communication unit 11 when the change of the client is not consistent with the change of another client.

With the above configuration, the server 1a can reflect the change made by the client in real time on the three-dimensional shape data stored in the shape data storage unit 12, which is a database.

Next, each of the clients 3a and 4a has the same configuration. The clients 3a and 4a
Communication units 31 and 41 for communication with each client;
Shape data storage units 32 and 42 for storing three-dimensional shape data created by three-dimensional CAD, and a change history storage unit 3 for storing a history of changes (change difference history).
3, 43 and display units 34, 4 for displaying three-dimensional shapes and the like.
4 is provided.

The clients 3a and 4a temporarily store the three-dimensional shape data received from the server 1a via the communication units 31 and 41 in the shape data storage units 32 and 42, and store the three-dimensional shape data received from the server 1a. The three-dimensional shape data is drawn on the display units 34 and 44 based on the three-dimensional shape data, and its own three-dimensional shape data is created by making a change or the like.
2, 42, and 3 received from server 1a.
Change history storage unit 3 stores the history of changes made to the dimensional shape data
3, 43, and 3 received from the server 1a.
The change history and the difference data added to the dimensional shape data are transmitted to the server 1a via the communication units 31 and 41, and the change history, the difference data, the message, and the like received from the server 1a are displayed on the display units 34 and 44. And shape forming units 35 and 45 for performing operations.

With the above configuration, the clients 3a and 4a transmit the history of changes made to the three-dimensional shape data received from the server 1a and the difference shape data to the server 1a. Further, it receives the history of changes made by other clients and the difference shape data from the server 1a and displays them on the display unit 34. As a result, each client can maintain the consistency of the same three-dimensional shape data to be changed in real time.

Next, the operation of the first embodiment when a plurality of clients change the same three-dimensional shape will be described with reference to FIGS. FIG. 2 is a time chart of the basic operation. FIG. 3 is a time chart in the case where the change occurs at a plurality of clients almost simultaneously. In the following operation description, the clients are A, B, C
Notation.

First, the basic operation of the present apparatus will be described with reference to FIG. In FIG. 2, two clients A and B are taken as an example, and the change made by client A is transmitted to client B.
It shows the basic operation of transmitting to.

In FIG. 2, client A requests transmission of three-dimensional shape data to be changed to server 1a, and then client B transmits the same three-dimensional shape data as client A to server 1a. Request (S1). On the other hand, the server 1a transmits the requested three-dimensional shape data and its change history to the client A, and then transmits the same contents to the client B (S2).

Here, it is assumed that the client A having received the three-dimensional shape data and the change history first makes a change to the three-dimensional shape data, for example, addition of a projection (S3). When the client A completes the change process,
Only the history of the change (change difference history) and the shape data of the change (change difference shape data) are transmitted to the server 1a (S4).

The server 1a adds the change difference history received from the client A to the original shape change history, and adds the change difference shape data to the original three-dimensional shape data (S
5). Thereafter, the server 1a transmits the change difference history and the change difference shape data to another client (here, the client B) that has made the data request but has not made the change request (S6). In the client B, the content changed in the client A is displayed (S7).

As described above, by automatically transmitting the change to the server 1a when the client A completes the change,
The three-dimensional shape data and the change history of the server 1a are updated,
The result is also transmitted to another client B. Thereby, the change of the client A can be confirmed in each client in real time.

Next, a case where a change occurs in a plurality of clients at substantially the same time will be described with reference to a time chart of FIG. FIG. 3 shows that the clients A, B, and C have already retrieved the same three-dimensional shape data from the server, the clients A and B change the data almost at the same time, and the server 1a transmits the data from another client B during the change processing of the client A. This shows processing when a change request is transmitted.

In FIG. 3, client A first
It is assumed that a change such as addition of a projection is made to the dimensional shape data (S11). Upon completion of the change processing, the client A transmits only the history of the change (change difference history) automatically and the shape data of the change (change difference shape data) to the server 1a (S12). ).

The server 1a performs a process of adding the change difference history received from the client A to the original shape change history, and adding the changed difference shape data to the original three-dimensional shape data (S13).

On the other hand, the client B also changes the data (S14), and transmits the change result (change difference history and change difference shape data) to the server 1a (S15).
However, as shown in FIG. 3, the transmission timing of the client B is a timing at which the server 1a is processing the change difference history and the change difference shape data transmitted from the client A, and has not yet finished. .

In this case, in the server 1a, the change request management unit 15 puts the data from the client B in a queue and puts it in a standby state, and as shown in FIG. Continue the processing (S1
3). After processing the data of client A, server 1a
Transmits the change difference data of the client A to the client C that has not issued the change request (S16).

Next, the server 1a extracts the data of the client B from the queue and starts the processing (S1).
7). When the process for the change of the client B is completed, the server 1a transmits the change difference data of the client A to the client B (S18), and sends the change difference data of the client B to the clients A and C. It is transmitted (S19).

On the screen of each client, the model after the change made by that client is displayed in the main window, and the changes made by other clients can be seen in the sub-window. In addition, a change of another client can be reflected in real time on the three-dimensional shape displayed on the main window.

Here, a case will be described in which the contents of the change request transmitted from each client include a change that does not allow the change of a certain client to be realized. FIG.
In the example shown in (1), the change content included in the change request of the client B cannot be realized by the change of the client A.

In FIG. 3, upon completion of the client A change process (S13), the server 1a transmits the client A change to the client C (S16) and processes the client B change (S17). In the process S17 for processing the change of the client B, the change request management unit 15 of the server 1a checks the consistency between the change of the client A and the change of the client B when creating the shape data according to the change contents of the client B. To check.

By this check, it is found that the change of the client B cannot be processed, and if there is a change in the client B related to the change contents of the client A in the queue, the change request management unit 15 Is removed from the queue.

Next, the change request management unit 15 sends the client B a message containing the contents of the change of the client A and the reason why the contents of the change of the client B cannot be realized and the change information relating to the change. , In step S18.

In the client B, the received content is displayed in another window, for example.
While looking at the shape and message indicating the contents of the change, the user will review his own changes and take action. In this manner, the client B can review the contents of its change in real time.

According to the first embodiment, as described above,
It can eliminate the difficulty of performing integrated processing like the conventional technology,
The following effects can be obtained.

(1) Since the change in each client is transmitted to the server 1a, and the change in the other client is transmitted from the server 1a to each client, the change can be confirmed in each client in real time, and a plurality of persons can perform the change work. Can be performed simultaneously and in parallel.

(2) Change in each client is sent to server 1
The shape creation unit 14 reflects the change in the shape data, and if there is a change that cannot be realized there, the client that made the change is notified of why the change cannot be made, so that the data consistency between the clients is maintained in real time. ,
Be able to deal in real time.

(3) Since each client transmits only the difference information, the network load on the LAN 2 can be reduced.

Next, FIG. 4 is a configuration block diagram of a second embodiment of the present invention. In FIG. 4, the same components as those in FIG. 1 are denoted by the same reference numerals and names.

In the second embodiment, when a change is not realized in a certain client, in the first embodiment having a function of notifying the change, when the change is made in each client, the reason for the change and the restrictions ( It has a design intent (eg, allowable range of dimensions) as information and has a function of notifying the design intent information.

In FIG. 4, the server 1b matches the design intention storage unit 16 storing the design intention with the design intention information sent from the client to the three-dimensional shape data and the change history in the shape creating unit 14. And a design intention management unit 17 that stores the data in the design intention storage unit 16 while maintaining the same.

When changing the shape, the clients 3b and 4b input design intention input units 36 and 46 for inputting design intention information such as the reasons for the change and restrictions, and the input design intention information is transmitted to the shape creation unit. Design intention storage units 37 and 47 that store the three-dimensional shape data and the change history in 35 and 45 while maintaining consistency with them are added.

Next, the operation of the second embodiment will be described with reference to FIG. In FIG. 4, when changing the shape, each client inputs design intention information such as a reason for the change and restrictions from the design intention input units 36 and 46. The design intention information is stored in the design intention storage units 37 and 47 by the shape creation units 35 and 45 while maintaining consistency with the three-dimensional shape data and the change history.

In the client, when the change is completed, the design intent information is taken out from the design intent storage units 37 and 47 by the shape creating units 35 and 45, and transmitted to the server 1b together with the changed difference shape data and the changed difference history information. In the server 1b, the received design intention information is stored in the design intention storage unit 16 by the design intention management unit 17 while keeping consistency with the shape data and the change history.

Here, a case where the contents of the change request transmitted from each client include a change that cannot realize a change of a certain client will be described. FIG.
In other words, there is a case where the change of the client A cannot realize the change content included in the change notification of the client B.
Hereinafter, the operation of the portion according to the second embodiment will be described with reference to FIG.

In FIG. 3, after processing the change of the client A, the server 1b processes the change of the client B. At this time, the change request management unit 15 checks the consistency between the change of the client A and the change of the client B when creating the shape data according to the change contents of the client B.

When it is determined that the change of the client B cannot be processed by this check, the change request management unit 15
To the client B, in addition to a message including the content of the change of the client A and the reason why the change of the client B cannot be realized, the design intent information of the content of the change of the client A is also transmitted.

In the client B, the received content is displayed in another window, for example.
While looking at the shape and message indicating the contents of the change, the user will review his own changes and take action. In this manner, the client B can review the contents of its change in real time.

As described above, according to the second embodiment, not only the data consistency between the clients is maintained in real time, but also the design intentions between the clients can be understood. When coping, it is possible to help determine how to implement the change, and it is possible to efficiently implement the change.

Next, FIG. 5 is a configuration block diagram of a third embodiment of the present invention. In FIG. 5, the same components as those in FIGS. 1 and 4 are denoted by the same reference numerals and names.

The third embodiment is different from the second embodiment in that, when a change of a certain client is not realized, a function of notifying the change and a function of notifying design intent information are provided. And has a function of giving priority to a change of a client having a higher authority level.

In FIG. 5, the server 1c is added with a client authority level management unit 18 for managing the authority level of each client under the control of the change request management unit 15. The configuration of each client is the same as in the second embodiment, with no additional components.

Next, the operation of the third embodiment will be described with reference to FIG. As shown in FIG. 5, the authority level of each client is managed by the client authority level management unit 18 of the server 1c. The server 1c starts the processing first from a change request having a higher authority level of the transmission source client among the change requests in the change request queue. The method of the subsequent processing is the same as in the second embodiment.

At this time, if a new change request arrives at the server before the change processing of the first change request is completed, the change request is transmitted from a client having a higher authority level than the change request being processed. If
The change processing that has been performed is stopped, and processing of a newly arrived change request is started.

As described above, according to the third embodiment, the authority level is given to each client, so that it is possible to prevent the change request processing of the client having the higher authority level from failing. .

The present invention is not limited to the above embodiment, but can be variously modified. For example, in the third embodiment,
In the second embodiment, each client has an authority level. However, a configuration in which each client has an authority level in the first embodiment may be used.

[0065]

As described above, according to the present invention,
It is possible to confirm each other's changes in real time, easily understand how each other's changes will be affected, and easily solve a case where the changes cannot be realized. Therefore, according to the present invention, it is possible to simultaneously perform the change work, and it is possible to improve the efficiency of the work of integrating the changed parts with each other.

[Brief description of the drawings]

FIG. 1 is a configuration block diagram of a first embodiment of the present invention.

FIG. 2 is a time chart showing a basic operation when a plurality of clients change the same three-dimensional shape.

FIG. 3 is a time chart when a change occurs simultaneously in a plurality of clients.

FIG. 4 is a configuration block diagram of a second embodiment of the present invention.

FIG. 5 is a configuration block diagram of a third embodiment of the present invention.

[Explanation of symbols]

 1a, 1b, 1c Server 2 LAN (communication means) 3a, 4a, 3b, 4b Client 11, 31, 41 Communication unit (communication means) 12 Shape data storage unit (database) 13, 33, 43 Change history storage unit 14, 35, 45 Shape creation unit 15 Change request management unit 16, 37, 47 Design intention storage unit 17 Design intention management unit 18 Client authority level management unit 32, 42 Shape data storage unit 34, 44 Display unit 36, 46 Design intention input unit

Claims (5)

[Claims] 1. A server that manages a database of three-dimensional shape data and a plurality of clients that change the three-dimensional shape data of the database to create their own three-dimensional shape data are connected via communication means. A server configured to retrieve the three-dimensional shape data requested by the client from the database and to transmit the three-dimensional shape data requested by the client; and to transmit the changed difference shape data related to the change request received from the client. Means for performing a process of reflecting the data in the database; and means for transmitting the change difference shape data and the change history data received from the client to another client, wherein the client transmits the three-dimensional shape data to be changed to the server. Means for requesting the third order received from the server Means for transmitting the change difference shape data, which is a difference between changes made to the shape data, and the change history data, which is a history of the changes made, to the server as the change request; and displaying information on the change received from the server. A data processing device comprising: 2. The data processing apparatus according to claim 1, wherein the server receives the same three-dimensional data from a second client during a process of reflecting the changed difference shape data received from the first client in the database. When a change request for the shape data is received, the received change request from the second client is queued and the first request is received.
Means for removing the client from the queue after the end of the processing for the client and executing the processing for the second client. 3. The data processing device according to claim 2, wherein the server, when performing the processing for the second client, requests the change of the second client by changing the first client. Determining means for checking whether or not the change included in the second client can be realized; and determining that the processing cannot be performed for the second client when the determination result of the determining means indicates that the processing cannot be performed for the second client. Means for transmitting the attached message; and a data processing device. 4. The data processing apparatus according to claim 3, wherein the server stores and manages the design intent obtained from each client, and the server that performs the processing first in the processing for the change request. The first client refers to the design intent of the first client, and the first message is transmitted to the second client.
Means for appending the design intent of the client, the client comprising: means for inputting the design intent; and means for appending the design intent to a change request transmitted to the server. Data processing device. 5. The data processing device according to claim 1, wherein the server stores and manages an authority level assigned to each client, and the server stores the authority level assigned to each client. Means for causing the client with the higher authority level to perform the processing first when a change request for the three-dimensional shape data of the above conflicts.