JPH07105132A - Common screen control unit based upon information structure - Google Patents

Abstract

PURPOSE:To make persons who share a screen concentrate on partial information structure, to perform object operation without placing any extra burden of the consideration of dependency relation between objects, etc., on an operator, and to improve the operation efficiency of the whole cooperative operation by changing an object display state on a common screen on the basis of common screen information. CONSTITUTION:When an object is added, the operator selects a menu on a display screen and sends an object addition request to an object information input part 109. When the operator selects an object type through the object information input part 109 according to an indication of a view management part 105, and points a display position on the screen to input an object name, the view management part 105 sends the position that the operator has pointed out to an object information holding part 107. The object information holding part 107 obtains the hierarchical level of the pointed subordinate space and the view management part 105 sends object addition to an object management part 101.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shared screen control device capable of displaying objects and changing the structure when a screen in which an information structure having nodes and links as constituent elements is shared is shared by a plurality of people. It is a thing.

[0002]

2. Description of the Related Art In recent years, with the enhancement of elemental technologies for constructing a wide-area distributed environment, various technologies for collaborative work by a plurality of people such as electronic conference systems and shared screen systems have been announced. Here, in the conventional shared drawing tool, the drawn contents are physically recognized only in bit units, and it is often impossible to recognize and process individual object information and their dependencies. In this case, it is not possible to recognize an object and perform operations such as moving and changing the object merely by repeating drawing and erasing.

On the other hand, multimedia information such as characters, figures, voices and moving images is divided into basic units called nodes,
BACKGROUND ART Hypermedia technology aiming at searching for related information, sending and thought support, presentation and communication support, etc. by following links set as a semantic relationship between information has been emphasized. Here, the existing hypermedia technology has a form in which an information file having a content closely related to each node is linked as a new node to build a network structure, and a plurality of related nodes and links are connected. It was not possible to define operations such as moving, emphasizing, concatenating information files, subspace division, and saving to an external file for a partial information structure that is a set of.

[0004]

The present invention has been made to solve the above problems. An object of the present invention is to take an information structure having nodes and links as constituent elements into a conventional shared drawing tool, and manage information based on the structure, thereby performing a drawing operation and management in consideration of the structure of an object in a coordinated manner. Is possible.
In particular, by enabling a series of operations required for a shared screen even for a partial information structure, it is possible to expand the expressiveness of the structure and improve the work efficiency of the worker. In other words, in discussions involving multiple objects to be examined at the same time, such as comparing and structuring objects, by collectively indicating the target objects on the shared screen, it is possible to understand which partial information structure is the opinion. It is intended to help the screen-sharing person understand the context of the discussion and prevent omission of consideration.

[0005]

In order to achieve the above-mentioned object, the present invention provides a shared screen control device by a plurality of workers arranged in a plurality of work stations connected by a network, and an object in a met work structure. ， The object management unit that creates or modifies and saves the object information by linking the objects and the information file linked to the partial information structure as the object information, and the operator on the shared screen Object information input section for inputting drawing request and information necessary for drawing, and information for display such as display position of objects and links and presence / absence of highlighting in response to drawing request from the object information input section To display the subspace for the created information file or partial information structure on another screen. Information such as the display position is collectively generated or changed as object display information and saved, and the view management unit that instructs drawing and the drawing request from the view management unit draw the objects and links on the shared screen. And an object information output unit for performing.

[0006]

According to the above-mentioned means, when a plurality of people construct an information space represented by nodes or links on a shared screen,
Holds object information and object display information, generates information about the partial information structure that is established by the combination of objects specified by the operator, and creates and information on subspaces including basic operations such as movement and deletion. When the request is made, the object information and the object display information of the objects in the partial information structure are generated and changed, such as connecting the files and emphasizing the objects. In addition, by changing the object display state on the shared screen based on the shared screen information, the screen sharer's consciousness can be concentrated on the partial information structure, and the operator's extra consideration such as dependency between objects can be avoided. Object operations can be performed without imposing a burden, and the work efficiency of the overall cooperative work can be improved.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be specifically described below with reference to the drawings. In all the drawings for explaining the embodiments, parts having the same function are designated by the same reference numerals, and repeated description thereof will be omitted.

First, the contents of various information will be described.

The object information includes the object number of the object (object number, hierarchical level of the subspace in which the object is located), object type, and object name. The hierarchical level of this subspace has a value equal to the object number of the group object in which the trace of cutting out the subspace is displayed as one object. This object type indicates the type of object, and the display symbol is determined corresponding to this.
The object type is used by workers who determine the meaning. The object display information includes the object number, the display position of the object, and the highlighted state of the object. The link information includes a link number (link number, hierarchical level of the subspace where the link is located), a set of object numbers of objects connected by the link, and a type of link. The link type indicates the type of link, and the display symbol is determined corresponding to this. The link type is used by workers who determine meaning. The link display information includes the link number, the start and end positions of the link indicating the link display, and the highlighted state of the link. The file information is information about the files connected to the set of highlighted objects, and includes the object number group, file name, and file contents of the highlighted objects. The file display information includes the display position of the linked file contents and the open / closed state of the files.

The display screen information includes display information displayed on the screen, window information, the number of the currently selected menu, and the pen thickness. The display information of the sub space includes the object number of the group object corresponding to the sub space, the display position of the sub space, and the open / closed state.

The display object correspondence information is correspondence information between the object number of the display object and the object number of the real object when the same object is duplicated and displayed.

FIG. 1 is a block diagram showing the basic construction of an embodiment of a work station in the shared screen control apparatus of the present invention. In FIG. 1, reference numeral 100 is a work station for one worker to perform a strong work with another worker. An object management unit 101 performs addition / modification processing of object information in response to a request from the view management unit. It also responds to inquiries about the object connection relationship from the view management unit. An object information holding unit 102 holds data such as object information, link information, and file information linked to an object. A display object correspondence information holding unit 103 holds display object correspondence information. 10
An external database management unit 4 includes an object information holding unit 102 and a display object correspondence information holding unit 1.
Of the information managed by 03, the information included in the designated area is held as an external file. Conversely, in response to an acquisition request for those pieces of information, the information of the corresponding external file is returned to the object information holding unit 102 and the display object correspondence information holding unit 103.

A view management unit 105 manages object display information. A shared screen information holding unit 106 is an object information input unit 10 that forms the shared screen.
The screen sharing state is managed by holding the display screen information of the input / output screen which is input to 9 and output by the object information output unit 110. An object display information holding unit 107 holds object display information, link display information, and file display information of each object. An object information change detection unit 108 periodically makes an inquiry to the object management unit 101 about the objects held in the object display information holding unit 107 and detects changes in the object information and the like. As a result, the work screen is not shared and only the object information is shared among the work stations.

Reference numeral 109 is an object information input section,
After selecting the menu on the display screen, the operator inputs the information necessary for the screen drawing operation of the worker and transmits it to the view management unit 105. 1
An object information output unit 10 changes the object display state on the screen according to a request from the view management unit. Also, an input prompt message of input information for the drawing operation request is output to the worker.

FIG. 2 is a block diagram showing the configuration of an embodiment in which two work stations are connected to each other and have a shared screen in the shared screen control apparatus of the present invention. In this case, it is assumed that the worker of the work station 100 knows in advance that the work station 100 is connected to the work station 200. In FIG. 2, reference numeral 200 denotes the other work station having a shared screen with the work station 100. Reference numeral 209 is an object information input unit for workers who share the screen. Reference numeral 210 is an object information output unit of workers who share the screen. Object information input unit 209 and object information output unit 210
Is connected to the view management unit 105 of the work station 100 via a network, and each unit has an appropriate communication means.

FIG. 3 is a block diagram showing the configuration of an embodiment in which three work stations are connected and the work station 300 shares only the object information of the work station 100 in the shared screen control apparatus of the present invention. It is a figure. In FIG. 3, reference numeral 300 is the other work station having no shared screen with the work stations 100 and 200. 305 is a view management unit, 306 is a shared screen information holding unit, 307 is an object display information holding unit, and 308 is an object information change detection unit. Three
Reference numeral 09 is an object information input section of this worker,
Reference numeral 10 is an object information output unit.

The object management unit 101 of the work station 100 and the view management unit 3 of the work station 300
05 is connected via a network, and each unit has an appropriate communication means.

4, 5 and 6 are examples of shared screens incorporating the shared screen control device of the present invention. FIG. 4 is an example of a screen when basic description is made on the shared screen. Each menu at the top of the screen in the figure corresponds to each operation on the screen described below. Further, in the figure, ◯ indicates an object, characters under the object indicate an object name, symbols in the object ◯ correspond to each object type, solid lines and dotted lines correspond to links, and link line patterns correspond to link types. FIG. 5 is an example of a screen when two objects are highlighted on the shared screen. In this figure, an example of a screen when object 1 and object 2 are highlighted on the shared screen is shown. FIG. 6 is an example of a screen when a file is linked to an object highlighted on the shared screen. This figure shows a screen example in which a new shared screen is further opened in order to refer to the file connected to the object group highlighted in FIG.

FIG. 7 shows an example of a table for storing display object correspondence information, which the display object correspondence information holding unit 103 manages. This content indicates that one of the display objects having the same real object number is a duplicate of the other. That is, the object C is a copy of the object A on the display.

Next, the operation of this embodiment will be described with reference to FIG.

When a new shared screen is opened, the operator of the work station 100 inputs the view information management unit 105, the shared screen information storage unit 106, the object display information storage unit 107, the object information change detection unit 108, and the object information input. Unit 109 and object information output unit 110
Start up. As for the first display screen information, the shared screen information holding unit 106 holds a default value in advance, and accordingly, the shared screen is displayed. Furthermore, the worker can newly specify the start time of the shared screen. The shared screen information holding unit 106 holds the display screen information of the launched shared screen. At this point, the screen is in a non-shared state and can be used as a shared screen without issuing a sharing request with other work stations. Further, when sharing the screen, a display screen addition request is issued to the object information input unit 109 by selecting a menu on the display screen. The object information input unit 109 transmits this request to the view management unit 105. The view management unit 105
Through the object information output unit 110, a message requesting input of information on the shared screen display is issued to the worker. When the worker inputs the shared screen display display name connected to the work station 200 and notified in advance through the object information input unit 109, the view management unit 105 is connected to the work station 200 and displays the work station 100 on the display. The shared screen information is displayed, the object information input unit 209 and the object information output unit 210 are started up in the work station 200, and the display screen information of this display screen is transmitted to the shared screen information holding unit 106. The shared screen information holding unit 106 holds this new display screen information. Further, the shared screen display display names of both are output on the display screens of the object information output units 110 and 210, whereby the worker recognizes the shared screen. However, by closing one of the shared screens, it is possible to switch the shared screen being worked to non-shared at any time. Moreover, a plurality of working screens can be used at the same time regardless of whether they are shared or not.

Next, the drawing operation on the shared screen of this embodiment will be described. Hereinafter, assuming that the work station 200 has already started up, the drawing operation on the shared screen will be described with reference to FIG.

Basic description means (addition / deletion / movement of object / link) When an object is added, the worker issues an object addition request to the object information input unit 109 by selecting a menu on the display screen. . The object information input unit 109 sends this request to the view management unit 105.
Communicate to. The view management unit 105 prompts the operator through the object information output unit 110 to input the object type, object name, and display position of the object to be added. When the worker selects an object type via the object information input unit 109, points the display position on the screen, and inputs the object name, the view management unit 105 causes the object display information holding unit 107 to point to the worker. The transmitted position is transmitted. The object display information holding unit 107 obtains the hierarchical level of the sub space pointed to from the display position and the open / closed state of the sub space display screen, and transfers the hierarchical level to the view management unit 105. The view management unit 105 notifies the object management unit 101 of addition of an object. Object management unit 1
Reference numeral 01 adds the assigned object number to the object type, the object name, and the subspace hierarchy level to make object information, and the object information holding unit 102 holds it. The object management unit 101 assigns the object number added to the object to the view management unit 105.
Return to. The view management unit 105 adds the object display position information to the received object number and transmits it to the object display information holding unit 107. The object display information holding unit 107 holds this. Further, the view management unit 105 obtains the display screen information of the object information output unit 210 of another work station 200 sharing the screen from the shared screen information holding unit 106. Then, the output of the added object is requested to the object information output units 110 and 210 displaying the shared screen.

When adding a link, the operator issues an object addition request to the object information input unit 109 by selecting a menu on the display screen. The object information input unit 109 transfers this request to the view management unit 105. The view management unit 105 prompts the operator through the object information output unit 110 to input the type of object set / link to be connected. When the worker inputs such information through the object information input unit 109, the view management unit 105 causes the object management unit 10
For 1, the link addition and the object number set of the objects at both ends and the link type are transmitted. The object management unit 101 adds the subspace hierarchical levels of the objects at both ends as the subspace hierarchical level of the link to the link number given as the link information, and holds it in the object information holding unit 102.
The object management unit 101 returns the link number to the view management unit 105. The view management unit 105 transmits the received link number and the object numbers of the objects at both ends to the object display information holding unit 107. The object display information holding unit 107 obtains the object display positions from the object numbers of the objects at both ends, and holds the object display positions together with the link numbers as start and end points of the link display positions. Further, the view management unit 105 obtains the display screen information of the object information output unit 210 of another work station 200 sharing the screen from the shared screen information holding unit 106. The output of the added object is output to the object information output unit 1 displaying the shared screen.
Request 10 and 210.

When deleting an object, the operator issues an object deletion request to the object information input section 109 by selecting a menu on the display screen. The object information input unit 109 transfers this request to the view management unit 105. In this case, batch deletion is possible by specifying a plurality of objects at the same time. The view management unit 105 is the object information output unit 11
Through 0, the operator is prompted to specify the position of the object to be deleted. When the operator points the position of the object on the screen through the object information input unit 109,
The view management unit 105 includes the object display information holding unit 10
The information of the designated position is transmitted to 7. The object display information holding unit 107 extracts the matching object display information from the received designated position information, the position information of the sub-space display screen, and the open / closed state thereof, and returns the object display information to the view management unit 105. The view management unit 105 transmits the object deletion request and the object number included in the object display information to the object management unit 101. The object management unit 101 transmits the object number to the object information holding unit 102. The object information holding unit 102 checks whether the object to be deleted holds a link to another object by searching the link information having the transmitted object number, and if it holds, object management. The link information of the link is returned to the section 101, and the object information to be deleted and the link information are deleted from the held data. The object management unit 101 returns the link information of the link to the view management unit 105.
The view management unit 105 includes the object display information holding unit 1
The link information is transmitted to 07 and the corresponding link display information having the same link number is obtained. The object display information holding unit 107 deletes the object display information and the link display information. Further, the display screen information of the object information output unit 210 of the other work station 200 sharing the screen is obtained from the shared screen information holding unit 106. Then, the object information output units 110 and 210 displaying the shared screen are requested to delete the link corresponding to the designated object.

When deleting a link, the worker issues a link deletion request to the object information input section 109 by selecting a menu on the display screen. The object information input unit 109 sends this request to the view management unit 105.
Communicate to. The view management unit 105 prompts the operator to specify the position of the link to be deleted through the object information output unit 110. The operator inputs the object information input unit 109
When pointing to the position of the link on the screen via, the view management unit 105 transmits the information of the specified position to the object display information holding unit 107. The object display information holding unit 107 selects one that matches the link display information from the received designated position information, the position information of the sub space display screen, and the open / closed state thereof, and returns the link display information to the view management unit 105. Then, the object display information holding unit 107 deletes the link display information from the held data. The view management unit 105 is the object management unit 101.
To the link delete request and the link number included in the link display information. Object management unit 101
Transmits the link number to the object information holding unit 102. The object information holding unit 102 deletes the link information having the link number from the held data. Further, the view management unit 105 obtains the display screen information of the object information output unit 210 of another work station 200 sharing the screen from the shared screen information storage unit 106. Then, the object information output units 110 and 210 displaying the shared screen are requested to delete the designated link.

When moving the display position of the object, the operator issues a request for moving the object to the object information input unit 109 by selecting a menu on the display screen. The object information input unit 109 transfers this request to the view management unit 105. In this case, batch deletion is possible by specifying a plurality of objects at the same time. The view management unit 105 prompts the operator to specify the position of the object to be moved and the position after the movement through the object information output unit 110. When the worker points the position of the object on the screen through the object information input unit 109, the view management unit 105 transmits the information of the designated position before and after the movement to the object display information holding unit 107. The object display information holding unit 107 extracts the matching object display information from the received designated position information before movement, the position information of the sub-space display screen, and the open / closed state thereof, and returns the object display information to the view management unit 105. The view management unit 105 transmits the object deletion request and the object number included in the object display information to the object management unit 101. Object management unit 1
01 transmits the object number to the object information holding unit 102. The object information holding unit 102
By searching for link information having the transmitted object number, it is checked whether or not the moving object holds a link to another object. Returns the link information for the link. Object management unit 10
1 returns the link information of the link to the view management unit 105. The view management unit 105 transmits the link information to the object display information holding unit 107 and obtains the corresponding link display information having the same link number. The object display information holding unit 107 changes the object display information and the link display information. Further, the display screen information of the object information output unit 210 of the other work station 200 sharing the screen is obtained from the shared screen information holding unit 106. Then, the object information output units 110 and 210 displaying the shared screen are requested to move the object and move the link returned from the object management unit 101.

Object Highlighting Means Next, the object highlighting means for changing the display state of an object on the shared screen in order to request the collaborative worker to pay attention to a specific object or group of objects will be described.

On the shared screen, the object information input unit 10
When the worker receives an object highlighting request from the worker by selecting a menu on the display screen, the worker issues an object highlighting request to the view management unit 105. In this case, it is possible to collectively emphasize by designating a plurality of objects at the same time. Upon receiving this request, the view management unit 105 causes the worker to specify the position through the object information output unit 110. The view management unit 105 transmits the position information specified by the operator to the object display information holding unit 107 via the object information input unit 109, and matches the specified display position and the position information of the sub-space display screen with the open / closed state. By retrieving the object display information to be displayed, the object display information of the object to be emphasized is obtained. The view management unit 105 transmits the object number included in the object display information to the object management unit 101. The object management unit 101 transmits the object display information to the object information holding unit 102, and the object information holding unit 10
If there is link information having the same object number, 2 takes out the link information, and if the link information and the object information of the partner object having the link obtained from the link information are also received, the object information is also received. The object management unit 101 returns the object information of this partner object to the view management unit 105. View manager 1
05 transmits the object information of the partner object to the object display information holding unit 107. The object display information having the same object number as the transmitted object information is checked, and if the display state of the partner object is emphasized, the object display information holding unit 107 returns the corresponding link display information to the view management unit 105 and emphasizes it. Change the display state of the requested object and link to the highlighted state. If the display state of the partner object is not highlighted, only the object display state requested to be highlighted is changed to the highlighted state. View management unit 105
Obtains display screen information of the object information output unit 210 of another work station 200 sharing the screen from the shared screen information holding unit 106. Then, the display state of the object and the link to be emphasized is changed from the non-highlighted state to the emphasized state to the object information output units 110 and 210 displaying the shared screen, and a change request is issued.

The change from the emphasized state to the non-emphasized state can be performed in the same manner as above.

File Linking Means Next, an information file containing information to be referred to is linked to an object or group of objects highlighted on the shared screen, and the contents are displayed on another shared screen. The file connecting means will be described. This file itself can be read and written by both workers on the shared editor, and its contents can be changed arbitrarily.

The operator issues an information file open request to the object information input unit 109 by selecting a menu on the display screen while the object is emphasized as described above. In this case, the file connection is made only for the highlighted object or objects. The object information input unit 109 transfers this request to the view management unit 105. View management unit 10
When 5 receives this request, the object information output unit 1
The operator is prompted to input the file name and the display position through 10, and the file name, the display position, and the shared screen information holding unit 10 input by the operator through the object information input unit 109.
Other workstations 200 sharing screen from 6
The display screen information of the object information output unit 210 is obtained. Then, this file is opened in the object information output units 110 and 210 displaying the shared screen. The contents of this file are the object information input section 1
The data is written in the buffers 09 and 209, read from both the object information output units 110 and 210, and displayed as another shared screen at the designated display position. The view management unit 105 also obtains the object number of the highlighted object or object group in the held data from the object display information holding unit 107. Then, the display position of the information file and the open / closed state of the file are transmitted to the object display information holding unit 107 as file display information, and the object display information holding unit 107 holds this. The view management unit 105 also transmits the acquired object number, file name, and file content input via the object information input unit 109 to the object management unit 101 as file information of a linked file. The contents of this file can be changed by the object management unit 101 periodically copying the buffers in the object information input units 109 and 209. At the same time, the view management unit 105 requests the object information output units 110 and 210 to rewrite the file contents. The object management unit 101 transmits this file information to the object information holding unit 102, and the object information holding unit 102 holds this. Further, it is possible to connect a plurality of information files to the same object and object group.

Hierarchical Management Means for Sub-Space Next, a hierarchical meas- urement means for sub-space for constructing a new sub-space with an object group included in a certain area and hierarchically expressing the entire space will be described. With this function, another space for displaying the objects in the designated area is constructed, and the objects in the sub-space are deleted in the original space and replaced with one group object.

The operator issues a sub space division request to the object information input unit 109 by selecting a menu on the display screen. Object information input unit 10
9 transfers this request to the view management unit 105. When the view management unit 105 receives this request, it issues a request to the worker through the object information output unit 110 to specify the area. When the operator designates an area by drawing a rectangle indicating the area on the screen, the view management unit 105 checks the display position in the held data in the object display information holding unit 107, the position information of the sub space display screen, and the open / closed state. Request to retrieve the object number of the object in the area. The view management unit 105 transmits the obtained object number of the object in the designated area to the object management unit 101. The object management unit 101 requests the object information holding unit 102 to change the hierarchy level in the object information of the in-zone object. Also, check if the specified object has a link to an unspecified object. If so, the object management unit 101 requests the object information holding unit 102 to duplicate the object information of the object in the area by newly re-assigning only the object number displayed on the screen. When the object management unit 101 obtains the object information of the duplicate object from the object information holding unit 102, it transmits the object numbers of the original object and the duplicate object to the display object correspondence information holding unit 103. Object correspondence information holding unit 1
03 adds the correspondence information of the original object and the duplicate object to the display object correspondence information management table.
This display object correspondence information management table has the format shown in FIG. The object management unit 101 returns the object information of the original object and the duplicate object to the view management unit 105. Further, the object management unit 101 requests the object information holding unit 102 to generate a group object indicating a new subspace on the original space. Object information holding unit 102
Generates the object information of the group object by a predetermined method, and the object management unit 10
Return to 1. The object management unit 101 transfers the object information of the group object to the view management unit 105. The view management unit 105 assigns the object number of the group object as a hierarchical level of the sub space to the display position of the sub space display screen and transmits it to the object display information holding unit 107.
07 holds this. Further, the view management unit 105 changes the position information in the display information of the designated object in the object display information holding unit 107 from the original space to the new sub space, adds the object number and the display position of the duplicate object, and the group object. Request addition of object number and display position of. In this case, the screen display position for the sub-space is newly obtained by prompting the operator to input, or is acquired first in an area designated by the operator. Further, the display screen information of the object information output unit 210 of the other work station 200 sharing the screen is obtained from the shared screen information holding unit 106. Then, the object information output units 110 and 210 displaying the shared screen are requested to delete the object in the original space and to generate and copy the object information in the new space. After the sub space is divided, objects in the sub space can be added or deleted as in the initial screen. Also, by deleting this group object, it is possible to delete in sub-space units. Furthermore, it is possible to highlight objects even in the sub space. It is also possible to create another subspace on the subspace.

External Database Management Means Next, an external database management means for saving objects or objects as an external database so that they can be reused will be described.

When the operator selects a menu on the display screen to receive a save request from the worker, the object information input unit 109 receives the object information output unit 11
Request the operator to specify the area and file name through 0. When the operator specifies the file name and the area to be saved by drawing a square on the screen, the object information input unit 109 stores the specified information in the view management unit 1.
To 05. In this case, when a part of the sub-space is designated as an area, or when the area is designated by including the group object, it is also possible to divide and designate only part of the sub-space indicated by the group object. The view management unit 105 obtains the object number to be saved from the object display information holding unit 107 and passes it to the object management unit 101. The object management unit 101 transmits the object number to be saved to the object information holding unit 102, and if any, obtains the link information / linked file information having the object number. The object management unit 101 also transmits the object number to the display object correspondence information holding unit 103, and obtains the corresponding display object correspondence information, if any. The object management unit 101 transmits these to the external database management unit 104. The external database management unit 104 saves the designated object information, link information, linked file information, and display object correspondence information in the designated file as an external file. When acquiring an external database, the operator specifies the file name. In this case, the display position of the acquired data is newly prompted by the requester or automatically determined by the view management unit 105. In response to the acquisition request of the external database, the external database management unit 104 searches the external file for the received file name, and acquires the obtained data from the object management unit 1.
To 01. The object management unit 101 transmits this to the object information holding unit 102 and the display object correspondence information holding unit 103, and obtains these new object information. The object management unit 101 transmits these to the view management unit 105. The view management unit 105 transfers this to the object display information holding unit 107.
The object display information holding unit 107 creates object display information for the object information, registers it in the database, and transmits it to the view management unit 105. Further, the view management unit 105 obtains the display screen information of the object information output unit 210 of another work station 200 sharing the screen from the shared screen information storage unit 106. Then, the object information output units 110 and 210 displaying the shared screen are requested to change the display of these objects.

Next, a work station 100 shown in FIG.
A case will be described below in which the object information sharing screen is not provided with items 200 and 200, but the object information is shared.

When the operator of the work station 300 opens a new screen without having a shared screen with the work stations 100 and 200, the view management unit 305, the shared screen information holding unit 306, and the object display information holding unit 3 are provided.
07, the object information change detection unit 308, the object information input unit 309, and the object information output unit 310 are activated. In this case, the object management unit 101, the object information holding unit 102, the display object correspondence information holding unit 103, and the external database management unit 104 are shared with the work stations 100 and 200.

The object information change detection unit 308 periodically inquires of the object management unit 101 only the object information managed by the object display information holding unit 307, and when the change / deletion / addition of the object information or the link information is confirmed. , New object information is transmitted to the object display information holding unit 307. The object display information holding unit 307 changes the held object display information and notifies the view management unit 305 of the change in the object display information. In this case, the display position of the newly added object can be designated by the operator of the work station 300 or can be determined by a predetermined method. View management unit 30
5 obtains the information of the object information output unit 310 displaying the display screen from the shared screen information holding unit 306. Then, the object information output unit 310 of the display screen is requested to change the display of the object.

[0040]

As described above, according to the present invention, in a shared screen control device by a plurality of people in a wide-area distributed environment, collective operations can be performed on a partial information structure consisting of a plurality of objects. Therefore, the efficiency of collaborative work is improved and the expressiveness of the structure is expanded.

[Brief description of drawings]

FIG. 1 is a block diagram showing a schematic configuration of an embodiment of a work station in a shared screen control device of the present invention.

FIG. 2 is a block diagram showing a schematic configuration of an embodiment when two work stations in the shared screen control device of the present invention are connected to share a screen.

FIG. 3 is a block diagram showing a schematic configuration of an embodiment when three work stations are connected to share an object in the shared screen control device of the present invention.

FIG. 4 is an image diagram of a screen when basic description is made on a shared screen in which the shared screen control device of the present invention is incorporated.

FIG. 5 is an image diagram of a screen when two objects are highlighted on the shared screen in which the shared screen control device of the present invention is incorporated.

FIG. 6 is an image view of a screen when a file is linked to an object highlighted on the shared screen in which the shared screen control device of the present invention is incorporated.

FIG. 7 is a diagram showing an example of a table storing display object correspondence information.

[Explanation of symbols]

 100, 200, 300 Work station 101 Object management unit 102 Object information storage unit 103 Display object correspondence information storage unit 104 External database management unit 105, 305 View management unit 106, 306 Shared screen information storage unit 107, 307 Object display information storage unit 108, 308 Object information change detection section 109, 209, 309 Object information input section 110, 210, 310 Object information output section

Claims (1)

[Claims] 1. A shared screen control device for collaborative work by a plurality of workers in a wide-area distributed environment via a computer, wherein a node of a metwork structure composed of a node and a link is an object, and a link is between objects. The information structure associated with the link is stored, the names and types of the objects and links in the information structure, and the contents of the information file linked to the object are saved as object information, and when an operator requests addition or deletion of the object or link. Adds, deletes or changes the object information, responds to inquiries about the content of the object information, and saves the object information in the area designated by the worker's request to save it in an external file. Object that saves in a file and reads the file at the worker's request In order to display the management unit and the object information stored in the object management unit as the object display information such as the display position for displaying the object information on the screen and the presence or absence of highlighting, and to display the screen on the display of the connected work station. Save the physical specifications of the display and the current window display state, etc. necessary to add, delete or change the object display information in response to a request from an operator to add or delete an object or link, The presence or absence of highlighting is set in the object display information for a link between objects requested to be highlighted by a worker requesting object highlighting, and a file connection of the worker for the highlighted object is set. , The contents of the linked information file are displayed on a separate screen. Set a display position for Shimesuru the object display information, the request of the operator of the sub-space division,
Set the display position for displaying the object in the area on the screen specified by the operator on another screen and the object display information changed to replace the area on the original screen with one object, A display position designated by the worker or a display position calculated by a predetermined method is set in the object display information in response to a display request of the contents saved in the external file from the worker, and the object is displayed according to the drawing request type of the worker. A view management unit that transmits a drawing request based on the display information and the object information, and is placed in another working station with another worker or in one's own work station. Necessary for the type of drawing request from the worker and drawing Information such as object name, display position, sub space area, save area, concatenated file name and its contents. Which object is input and which is transmitted to the view management unit, and the object information input unit, together with the object information input unit, configures another work station having a shared screen or configures a part of one's work station, A shared screen control device based on an information structure, comprising: an object information output unit that displays a screen in response to a drawing request from the view management unit.