JPH0798642A - Interactive device - Google Patents

Abstract

PURPOSE:To re-display a past display screen with a simple operation by reading corresponding task information from a history menu storage table and displaying the selection-requested screen when notice data of a selection request is given. CONSTITUTION:An input data judgement means 4 judges a request content from an input device 3 and outputs notice data. A hierarchy menu display means 5 displays the content of a hierarchy menu table 8 on a display device 2. A virtual screen display means 10 generates virtual screen data and displays it on the display device 2 by a plural screens display means 6. A history menu display means 12 displays the content of the history menu storage table 11 on the display device 2 by a display request. When a task generation means 7 generates task information, notice data and generated task information are sequentially stored in the history menu storage table 11, and the content of the history menu storage table 11 storing them as retrieval information of the past screen by the display request of an operator is displayed on the display device 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an interactive device which provides information by a display device and an operator inputs a request from an input device based on this information to monitor a plant.

[0002]

2. Description of the Related Art In order to safely monitor and operate a plant, it is necessary to visualize a lot of information. For this reason, a monitor and control panel is provided in a monitor and control room or the like for centralized display. The number of items displayed on this monitor and control panel is very large, and the panel itself is quite large. The purpose of this is to monitor all at once and to be able to immediately see what should be monitored when the plant enters a specific state.

In recent years, with the development of computer systems for plant monitoring and the development of CRTs for monitoring, by displaying the instruments arranged on the conventional panel collectively on the CRT, necessary information can be obtained when needed. It is possible to select and display on the CRT, and it has become possible to monitor in a smaller space than when using a monitor panel.

From such a background, for example, in the case of monitoring a thermal power generation system, it has been necessary for several persons to be required by one person in the past. As for the monitoring screen itself, a large number of monitoring screens necessary for plant monitoring are immediately selected and displayed on the CRT. Therefore, by classifying by use and function and selecting a hierarchical menu, the required functions can be displayed. The dialogue method is also devised so that the narrowing down can be done easily.

FIG. 12 is an example of a block diagram showing a conventional dialogue apparatus of this type.

In the figure, a dialogue device 1 includes a display device 2, an input device 3, an input data judgment means 4, a hierarchical menu display means 5, a multi-screen display means 6, a task generation means 7, a hierarchical menu table 8 and task information. It comprises a storage table 9 and a virtual screen display means 10.

Here, the display device 2 has a function of simultaneously displaying a plurality of display screens in a plurality of display areas. The input device 3 is used by an operator to input various requests. The input data judging means 4 judges the contents input from the input device 3, executes the corresponding process, and outputs the notification data as command information for displaying the result on the display device. The hierarchical menu display means 5 extracts the hierarchical menu from the hierarchical menu table 8 and displays it on the display device 2.

The multiple screen display means 6 manages a plurality of display screens displayed on the display device 2. The task generation means 7 reads any item from the task information storage table 9 and generates task information. The hierarchical menu table 8 is a table for hierarchically storing interactive function menus as a hierarchical menu.

The task information storage table 9 is a table for storing task information as display program information corresponding to each menu of the hierarchical menu table 8.
The virtual screen display means 10 creates and manages screen display data as virtual screen data from the task information generated by the task generation means 7.

With the above configuration, when the operator selects the menu display function from the input device 3, the input data determination means 4 notifies the hierarchical menu display means 5 of the request. The hierarchical menu display means 5 takes out the hierarchical menu as shown in FIG. 13 from the hierarchical menu table 8 and displays the hierarchical menu on the display device 2 as shown in FIG.

The hierarchical menu 101 shown in FIG. 13 is composed of categories 103 consisting of categories A to Z with respect to the menu display 102, and function groups 104a to 104a corresponding to the respective categories.
104z is hierarchically formed.

On the other hand, FIG. 14 is displayed on the display device 2 corresponding to FIG. 13, and when the operator selects the menu display 102 from the input device 3, the input data judging means 4 hierarchically requests the menu display. Notify the menu display means 5,
A hierarchical menu is extracted from the hierarchical menu table 8 by the hierarchical menu display means 5 and the classification 103 and the function group 104 are displayed on the display device 2.

The function group 104i shown in FIG. 14 displays one of the function groups 104i shown in FIG. 13, and the function groups belonging to the classification selected in the classification 103 are displayed. To be done. In FIG. 14, classification 103
If another item is selected, the content of the function group 104i replaces that belonging to the selected classification.

Here, when an arbitrary item is selected from the displayed function group 104i, a monitor screen corresponding to the function is displayed on the display device 2 as shown in FIG. On the screen 201 shown in FIG. 15, the trend of the corresponding input points is displayed together with the current digital values of the plurality of input points.

On the other hand, the plant monitoring screen is not only always selected from the hierarchical menu 101 as described above, but also automatically displays the plant status on the CRT when the plant is in a specific state. A method of storing display conditions in advance is also used.

For example, when the plant is in a specific state, the state of the plant corresponding to the display device 2 is displayed based on the automatic display table 301 shown in FIG. The automatic display table 301 stores the display timing, the display screen number, and the display destination CRT in a table format.

With the development of computer technology and CRT display technology, one CRT is divided into a plurality of display areas, and a multi-window display as shown in FIG. 17 for simultaneously displaying a plurality of monitor screens is also used. Has been.

In this multi-window display, a plurality of screen display data are stored in the virtual screen display means 10 in advance, the virtual screen is taken out by the multiple screen display means 6 and displayed on the display device 2.

[0019]

However, the above-mentioned conventional dialogue device has the following operability problems.

First, when the operator temporarily switches the display contents of the display device 2 to another screen and then wants to return to the screen before switching, the operator does not know what the previous screen is. There is a problem that it is necessary to remember whether or not was selected and displayed.

Secondly, when each display data is displayed in a plurality of display areas of the display device 2 and all of the display data is canceled and switched to another plurality of display data, the display returns to the plurality of screens before the switching. In the case of an emergency, the operator needs to make a memo or memorize all of the selection and display in advance, which is a problem in that it takes a lot of trouble.

Thirdly, for the display device 2 that monitors according to the state of the plant, it is necessary to create and store the contents of the automatic display table in a storage table in advance, and this storage table is currently being displayed. When changing to the display screen, the conventional interactive device has a problem that the automatic display table cannot be changed directly from the displayed screen information.

Therefore, according to the present invention, in order to solve the above problems, past display screens can be re-displayed by a simple operation, and by adding a function for improving various operability,
It is an object of the present invention to provide a dialogue device that is easier for operators to use.

[0024]

According to a first aspect of the present invention, a display device, an input device for inputting a processing request according to display information displayed on the display device, and an input content from the input device are determined. And input data determination means for outputting corresponding notification data as command information for displaying the result on the display device and a menu screen for selecting a screen to be displayed on the display device. The task information is generated from a menu display unit that displays the contents of the menu table on the display device, and a task information storage table that stores task information as program information for creating display screen data according to the notification data. Task generation means and a virtual image for creating and storing virtual screen data capable of instantly displaying a screen on the display device based on the task information. In a dialogue device comprising a display means and a screen display means for displaying the virtual screen data stored in the virtual screen display means on the display device, the notification data and the task information generated by the task generation means are fixed amounts. A history menu storage table that is sequentially updated and stored, and a history menu display unit that displays a history menu on the display device when the contents of the history menu storage table are requested to be displayed, and the history menu is displayed on the display device. A means for reading the corresponding task information from the history menu storage table by the notification data of the selection request and notifying the virtual screen display means is provided.

According to a second aspect of the present invention, a display device, an input device for inputting a processing request according to the display information displayed on the display device, and a corresponding process by judging the input content from the input device are performed. An input data determining means for executing and outputting notification data as command information for displaying the result on the display device; and a content of a menu table storing a menu screen for selecting a screen to be displayed on the display device. Menu display means for displaying on the display device, task generation means for generating task information from a task information storage table that stores task information as program information for creating display screen data according to the notification data, and Virtual screen display means for creating and storing virtual screen data capable of instantly displaying a screen on the display device based on the task information; In a dialogue device comprising a screen display unit for displaying virtual screen data stored in the virtual screen display unit on the display device, a temporary update of the notification data and task information generated by the task generation unit by a fixed amount. A storage table, a history menu storage table that updates and stores the notification data and task information stored in the temporary storage table by a certain amount according to the storage request notification data, and when the contents of the history menu storage table are requested to be displayed. A history menu display means for displaying a history menu on the display device; and when the history menu is displayed on the display device, the corresponding task information is read from the history menu storage table by the notification data of the selection request and the virtual screen is displayed. A means for notifying the display means is provided. Than it is.

According to a third aspect of the present invention, in the interactive apparatus according to the second aspect, when the task information is stored in the temporary storage table, the task information corresponding to all areas displayed on the display device is stored. It is the one.

According to a fourth aspect of the invention, in the interactive apparatus according to the third aspect, when the task information stored in the temporary storage table is transferred to the history menu storage table and stored, the task information being displayed on the display device is displayed. The virtual screen data corresponding to all areas are stored together.

The invention of claim 5 is the first to fourth aspects of the invention.
In the interactive device described, a process input / output device for inputting the process state of the plant, a specific plant state is determined from the plant state input from this process input / output device and the determination data of the plant state determination table, and a display request is issued. A plant state judging means for outputting to the input data judging means is added.

According to a sixth aspect of the present invention, in the dialogue apparatus according to the fifth aspect, the contents of the plant state determination table are based on the contents of the history menu storage table by the notification data of the reset request from the input data determination means. It is designed to be reset.

According to a seventh aspect of the present invention, a display device, an input device for inputting a processing request according to the display information displayed on the display device, and a corresponding process by judging the input content from the input device are performed. An input data determining means for executing and outputting notification data as command information for displaying the result on the display device; and a content of a menu table storing a menu screen for selecting a screen to be displayed on the display device. Menu display means for displaying on the display device, task generation means for generating task information from a task information storage table that stores task information as program information for creating display screen data according to the notification data, and Virtual screen display means for creating and storing virtual screen data capable of instantly displaying a screen on the display device based on the task information; In a dialogue device comprising a screen display unit for displaying virtual screen data stored in the virtual screen display unit on the display device, a temporary update of the notification data and task information generated by the task generation unit by a fixed amount. A storage table and a first history menu storage table; a second history menu storage table for updating and storing the notification data and task information stored in the temporary storage table by a certain amount by the storage request notification data; When the contents of the second history menu storage table are requested to be displayed, history menu display means for displaying the history menu on the display device; Corresponding task information from the 1st or 2nd history menu storage table It is obtained so as to provide a means for notifying the virtual screen displaying means reads.

According to the invention of claim 8, a display device, an input device for inputting a processing request according to the display information displayed on the display device, and a process corresponding to the contents input from the input device are judged. An input data determining means for executing and outputting notification data as command information for displaying the result on the display device; and a content of a menu table storing a menu screen for selecting a screen to be displayed on the display device. Menu display means for displaying on the display device, task generation means for generating task information from a task information storage table that stores task information as program information for creating display screen data according to the notification data, and Virtual screen display means for creating and storing virtual screen data capable of instantly displaying a screen on the display device based on the task information; In an interactive device including a screen display unit for displaying virtual screen data stored in the virtual screen display unit on the display device, a history of sequentially updating and storing the notification data and the task information generated by the task generation unit by a fixed amount. A menu storage table and a temporary storage table, and the notification data and task information stored in the temporary storage table are stored in the menu table by the storage request notification data, and the menu is displayed on the display device by the menu display means. When
Means for displaying the task information stored in the menu table together, history menu display means for displaying a history menu on the display device when the contents of the history menu storage table are requested to be displayed, and the display device for displaying the history menu. When the history menu is displayed, the corresponding task information is read from the history menu storage table according to the notification data of the selection request, and the virtual screen display means is notified.

According to a ninth aspect of the present invention, in the dialog device according to the fourth aspect, when the history menu is displayed on the display device, the history menu storage table stores the history menu according to notification data of a screen display request. The virtual screen data of the entire area of the display device is displayed on the display device through the virtual screen display means.

According to a tenth aspect of the present invention, in the dialogue apparatus according to the fifth or sixth aspect, a plurality of displays on the display device are provided in response to a plurality of specific states of the plant by the plant state determining means. The regions are sequentially displayed, and the display regions are sequentially erased in response to the elimination of the specific state.

The invention according to claim 11 is the dialog device according to any one of claims 1 to 8, wherein the contents of the history menu storage table are displayed, and when one of the history menus is selected from among them, A means for designating an area to be displayed is added.

[0035]

According to the invention of claim 1, when the task information is generated, the generated task information is stored in the history menu storage table. When a history menu is displayed on the display device, if there is notification data of the selection request, the corresponding task information is read from the history menu storage table, the virtual screen display means is notified, and the screen requested for selection is displayed on the display device. Is displayed. As a result, in order to retrieve the past screen once selected by the operator, the history menu is sequentially stored in the history menu storage table, and the history menu as the display index is re-displayed according to the operator's display request. Therefore, the required display data can be immediately re-displayed on the display device. Therefore, it is not necessary to store or memorize past screen classifications and functions as in the past, and a complicated selection operation for selecting a required screen is unnecessary.

According to the second aspect of the present invention, when the task information is generated, the task information is stored in the temporary storage table, and after that, there is notification data of a task information storage request,
It is transferred and stored from the temporary storage table to the history menu storage table. When the history menu is displayed on the display device, if there is notification data of the selection request, the corresponding task information is read from the history menu storage table, the virtual screen display means is notified, and the selection request is made to the display device. The screen is displayed. As a result, the task generation information displayed on the display device is temporarily stored and is stored in the history menu storage table only when a storage request is made, so that only the necessary items are stored in the history menu storage table. Therefore, only the necessary history menu can be displayed in the past screen, so the necessary past screen can be re-displayed easily and quickly, and the past screen classification and functions can be recorded as before. I no longer need to remember.

According to a third aspect of the present invention, in the interactive apparatus according to the second aspect, when the task information is stored in the temporary storage table, the task information corresponding to all areas displayed on the display device is stored. As a result, the task information of all areas displayed on the display device is stored in the history menu storage table upon request. At this time, it is not necessary to specify which area on the display device to store the task information. Therefore, it is possible to store the history menu for all areas on the display device at a certain point in the past and display the entire areas again at once.

According to a fourth aspect of the present invention, in the interactive apparatus according to the third aspect, when the task information stored in the temporary storage table is transferred to the history menu storage table and stored, all areas displayed on the display device are displayed. The virtual screen data corresponding to is also stored together. Therefore, when the screen once selected is directly selected and displayed from the history menu, it is possible to select from the virtual screen data as the screen image in which the screen is stored. This has the effect that by storing past virtual screen data, past numerical data of the plant that is included in the virtual screen data can be redisplayed as it is.

The invention of claim 5 is the first to fourth aspects of the invention.
In the described interactive apparatus, when it is necessary to monitor the specific state of the plant, it becomes possible to automatically display the state of the monitored plant on the display device without the operator's judgment. In addition, the notification data and task information when automatically displayed are stored in the history menu storage table, the history menu is displayed when requested, and the display screen for past plant abnormalities can be easily and quickly selected. It can be displayed again.

According to the invention of claim 6, in the dialogue apparatus of claim 5, since the contents of the plant state judgment table are corrected by the display information in the past, a monitoring screen is displayed when monitoring in a specific state of the plant is required. It will be optimal depending on the plant situation.

According to the seventh aspect of the invention, the screen once selected can be directly selected and displayed from the history menu stored in the history menu storage table in which the screen is automatically stored. Therefore, the history menu can be directly selected and displayed from the selectable history menu, and at the same time, there are two types of tables in which the screen once selected is temporarily stored from the temporary storage table to the auxiliary history menu storage table. And the past screen can be redisplayed easily and surely.

According to the eighth aspect of the present invention, when the menu is displayed on the display device by the menu display means, the task information transferred to and stored in the menu table is also displayed. Therefore, the screen once selected can be directly selected and displayed from the history menu, and the screen once selected can be stored in the menu table and the task information can be directly selected and displayed together with the menu screen.

According to a ninth aspect of the present invention, all virtual screen data is stored in the history menu storage table in correspondence with all the areas displayed on the display device, and the virtual areas of all the areas stored in the history menu storage table are requested. The screen data can be displayed on the display device. Therefore, it is possible to simultaneously redisplay the display screen on the display device at any time.

According to the tenth aspect of the present invention, when there are a plurality of monitoring screens in a specific state of the plant, the screens are displayed and erased according to the state of the plant, and the specific screens among them can be displayed by enlarged display. Becomes

According to the eleventh aspect of the invention, when the function once selected is directly selected and displayed from the history menu, the function is not selected from the display area at the time of the previous display but is selected from the display areas currently set on the display device. The area can be specified and displayed.

[0046]

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

FIG. 1 is a block diagram of a dialogue device showing a first embodiment of the present invention. FIG. 1 is different from FIG. 12 showing a conventional example in that a history menu storage table 11 and a history menu display means 12 are additionally provided, and the configuration of the task generation means 7 is different.

In the first embodiment, when the task information is generated by the task generating means 7, the notification data and the generated task information are automatically and sequentially stored in the history menu storage table 11, and the operator's display request is made. History menu storage table 1 stored as search information of past screens by
The contents of 1 are displayed on the display device 2.

Here, the history menu storage table 11
Is for storing the notification data from the input data judging means 4 and the task information generated by the task generating means 7.
The history menu display means 12 displays the contents of the history menu storage table 11 on the display device 2.

First, when the operator selects the menu display function from the input device 3, the input data judging means 4
Retrieves the hierarchical menu from the hierarchical menu table 8 via the hierarchical menu display means 5 and displays the hierarchical menu on the display device 2 as shown in FIG.

Next, in the hierarchical menu of the display shown in FIG. 14, an arbitrary classification 103 and its function group 104 are input device 3
When further selected, the input data judgment means 4 notifies the selection information to the task generation means 7, and the hierarchical menu currently displayed on the display device 2 is displayed on the display device 2 via the history menu display device 12. to erase.

The task generating means 7 is processed according to the procedure shown in FIG. 2, and first, the task information storage table 9 is searched by the notification data from the input device 3 (401, 40).
2). Next, the notification data and the retrieved task information are stored in the history menu storage table 11 configured as shown in FIG. 3 (403).

The history menu storage table 11 stores the notification data, which is the information from the input device 3, and the task information retrieved from the task information storage table 9 in chronological order. The history menu storage table 11 stores the present data 11a, the previous data 11b, and a plurality of oldest to oldest data sequentially.
When 1 is full, the oldest data is discarded, and the data 11a is inserted this time to be updated.

Then, a virtual screen number to be displayed as virtual screen data is extracted from the retrieved task information and notification data (404). This virtual screen number means that before the display data is displayed on the display device 2,
A virtual display device is set and screen display data is created on the virtual display device. It can be fixedly assigned to each function, or the display device with which the operator is currently interacting can be assigned. It was done like this.

When a virtual screen number is added to the notification data, the task generating means 7 uses the number on the notification data, and when the number is not added, it is stored in the task information storage table 9 in advance. The virtual screen number that was set is the virtual screen number of this time.

Next, it is judged whether or not some task has already been generated and the virtual screen is being displayed for the virtual screen number of the present time taken out (405). If it is already displayed in this determination, the program running on the virtual screen is stopped (406).

Next, resources are allocated so that the task for processing the function selected this time is executed on the specified virtual screen, and the task is generated (407). Here, the generated task continues to display the display data on the virtual screen until the end request is notified, and the actual display on the display device 2 is performed via the virtual screen display means 10 and the multiple screen display means 6. It is possible to display data.

Further, the generated task information is used as display data to display the status of the monitored plant and display device 2,
Alternatively, the dialogue function with the operator can be independently performed via the input device 3.

Then, the task information is displayed on the virtual screen display means 1.
By notifying 0, display is started on the display device 2 via the virtual screen display means 10 and the multiple screen display means 6 (408).

When the operator selects the history menu display function from the input device 3, the input data judging means 4 outputs the notification data to the history menu displaying means 12. The history menu display means 12 displays the information stored in the history menu storage table 11 on the display device 2 as a history menu, as shown in FIG.

In the illustrated history menu screen, the classifications and functions stored in the history menu display means 12 are displayed in a list in a superimposed manner on the currently displayed display screen A and display screen B.

The operator selects an arbitrary item from the input device 3 in the history menu displayed on the display device 2. In the task generating means 7, the task information storage table 9 stores the task information for processing the function corresponding to the selected item.
(409).

Thereafter, the same processing as when an arbitrary function is selected from the hierarchical menu display is performed, virtual screen data is created by the virtual screen display means 10 and displayed on the display device 2 via the multiple screen display means 6. Output and display (404-4)
08).

As described above, in order to retrieve the past screen once selected by the operator, the history menu is sequentially stored in the history menu storage table 11 and the history menu as the display index is redisplayed in response to the operator's display request. Then, the required display data can be immediately re-displayed on the display device 2 from this history menu.

Therefore, it is not necessary to store or memorize the classification and function of the screens in the past as in the conventional case, and the complicated selection operation for selecting a required screen is unnecessary.

Next, a second embodiment of the present invention will be described with reference to FIG.

The second embodiment differs from the first embodiment shown in FIG. 1 in that a temporary storage table 13 is additionally provided. In the first embodiment, notification data and task information are created every time. In contrast to the automatic saving to the history menu storage table 11, in the second embodiment, the notification data and the task information are temporarily saved in the temporary storage table 13, and the notification data and the task information are saved to the history menu storage table 11 according to the storage request of the operator. I try to save it.

First, when the operator selects the menu display function from the input device 3, the input data judging means 4
The contents of the hierarchical menu table 8 are displayed on the display device 2 through the hierarchical menu display means 5, as shown in FIG.

Next, when an arbitrary classification and its function are selected from the input device 3 from the hierarchical menu shown in FIG. 14, the input data judgment means 4 outputs the selection notification data to the task generation means 7 and displays the current display. The hierarchical menu being displayed is deleted from the display device 2 via the history menu display means 12.

The task generation means 7 reads task information for processing the corresponding function from the notification data from the task information storage table 9 and notifies the virtual screen display means 10 of it.

Next, the virtual screen display means 10 creates virtual screen data using the task information from the task generation means 7,
The screen is displayed in the area on the display device 2 via the multi-screen display unit 6.

Here, when the operator selects the history menu storage function from the input device 3, the input data judgment means 4 notifies the task generation means 7. Task generation means 7
Is the current data 1 shown in FIG. 6 from the temporary storage table 13.
3 is read out and stored in the history menu storage table 11.

On the history menu storage table 11, the notification data which is the information from the input data judging means 4 and the information of the task information storage table 9 are sequentially stored, and when full, the oldest information is discarded and the current information is stored. Remember.

Next, when the operator selects the history menu display function from the input device 3, the input data judgment means 4 is notified to the history menu display means 12 and stored in the history menu storage table 11 by the history menu display means 12. The displayed information is displayed on the display device 2 as a history menu as shown in FIG.

When this history menu is displayed, if any function is selected from the history menu via the input device 3, the input data judging means 4 notifies the task generating means 7 of the selection information and , History menu display means 1
Notify 2 of the history menu deletion request.

The task generation means 7 reads task information for processing the corresponding function from the notified information from the history menu storage table 11, notifies the virtual screen display means 10 and stores it in the history menu storage table 11.

As described above, since the task generation information displayed on the display device 2 is temporarily stored and stored in the history menu storage table 11 only when the history menu storage request is made, only the necessary history is stored. It is stored in the menu storage table 11.

Therefore, since only the necessary history menu can be displayed in the past screen, the necessary past screen can be easily displayed, and the classification and function of the past screen can be recorded as in the conventional case. I no longer need to remember.

Next, a third embodiment of the present invention will be described with reference to FIG.

In the third embodiment, the notification data and task information corresponding to all the areas displayed on the display device 2 are automatically generated in the temporary storage table 13 when the task information is generated, as described in the second embodiment. When the operator requests the history menu to be saved, the history menu storage table 11 is saved. When the operator further requests, the display of the entire area of the display device 2 is collectively displayed. is there.

First, when the operator selects on the displayed hierarchical menu screen, the task generating means 7 reads task information for processing the corresponding function from the notified information from the task information storage table 9, and the virtual screen displaying means. 10 as well as to the temporary storage table 13.

As a result, the temporary storage table 13 contains
The task information of all areas currently displayed on the display device 2 is stored. That is, as shown in FIG. 7, the temporary storage table 1
In 3, the notification data and task information corresponding to the display areas 1 to i are collectively stored.

The virtual screen display means 10 creates virtual screen data using the task information from the task generation means 7 and displays the screen in one area on the display device 2 via the multiple screen display means 6.

Here, when the history menu save function is selected from the input device 3, the task generation means 7 reads the data of the temporary storage table 13 shown in FIG. Store data sequentially.

Next, when the history menu display is selected from the input device 3, the history menu display means 12 displays the data stored in the history menu storage table 11 on the display device 2 as a history menu as shown in FIG. indicate.

When the history menu is displayed and an arbitrary function is selected from the history menu via the input device 3, the task generation means 7 displays the task information for processing the corresponding function from the notified information as the history menu. It reads from the storage table 11 and notifies the virtual screen display means 10.

As described above, the task information of all areas being displayed on the display device 2 is stored in the history menu storage table 11, and a screen once selected can be directly selected and displayed from the display of the history menu. . At this time, it is not necessary to specify which area on the display device 2 the task information is stored. Therefore, it is possible to store the history menu for all areas on the display device 2 at a certain point in the past and display all areas once again.

Next, a fourth embodiment of the present invention will be described with reference to FIG.

In the fourth embodiment, in the third embodiment, when the history menu save function is selected, the data of the temporary storage table 13 is stored in the history menu storage table 11, while the virtual screen display means 10 creates the data. The virtual screen data is also stored together.

First, when a hierarchical menu is displayed on the display device 2 and an arbitrary classification and its function are selected from the input device 3, the task generation means 7 processes task information for processing the corresponding function from the notified information. Is read from the task information storage table 9, the virtual screen display means 10 is notified, and the entire area currently displayed on the display device 2 is stored in the temporary storage table 13 as shown in FIG.

The virtual screen display means 10 creates virtual screen data using the information from the task generation means 7, and displays the screen in one area on the display device 2 via the multiple screen display means 6.

When the history menu save function is selected, the task generating means 7 causes the temporary storage table 1 to be displayed as shown in FIG.
The data of No. 3 is read out, and the history menu storage table 11
While this data is sequentially stored for all display areas, the virtual screen data stored in the virtual screen display means 10 is also stored together.

On the history menu storage table 11, notification data corresponding to all areas and the task information storage table 9 are stored.
Task information and virtual screen data stored in the virtual screen display means 10 are stored, and when full, the oldest information is discarded and the current information is stored.

The history menu display means 12 simultaneously displays a plurality of virtual screen data as history menus stored in the history menu storage table 11 on the display device 2 as shown in FIG. This figure is an example of screen data displayed by the history menu display means 12.

When this screen data is displayed and an arbitrary function is selected from the screen data via the input device 3, the task generation means 7 is notified of the selection information and the history menu display means 12 is notified of the history menu. Notify the deletion request.

According to the fourth embodiment, when the screen once selected is directly selected and displayed from the history menu, it is possible to select from the virtual screen data as the screen image in which the screen is saved. This has the effect that by storing past virtual screen data, past numerical data of the plant that is included in the virtual screen data can be redisplayed as it is.

Next, a fifth embodiment of the present invention will be described with reference to FIG.

In the dialogue system 1 of the fifth embodiment, the process input / output device 15 for inputting the plant state from the monitored plant 14 and the monitored plant 14 are specified in the configuration described in the first embodiment of FIG. It comprises a plant status judging means 16 for judging whether the status is a status and a specific status of the monitored plant 14 and a plant status judging table 17 which displays the specific status of the monitored plant 14 on the display device 2 and stores items to be monitored.

First, with the above configuration, the process input / output device 1
The information of the monitored plant 14 inputted to the plant state judging means 16 via 5 is compared with the display timing stored in advance in the plant state judging table 17 as shown in FIG.

As a result of this comparison, when it is determined that the monitored plant 14 is in any one of the specific states of the plant state determination table 17, the plant state determination means 16 notifies the input data determination means 4. The input data judgment means 4 is
The task generation means 7 is notified of the notification data from the plant state determination means 16.

The task generation means 7 reads the task information for displaying the corresponding monitor screen from the notification data from the task information storage table 9, notifies the virtual screen display means 10 of the task information, and stores the history menu similar to that shown in FIG. The notification data and the task information are stored in the table 11.

The virtual screen display means 10 creates virtual screen data using the task information from the task generation means 7 and displays the screen in one area on the display device 2 via the multiple screen display means 6.

Next, when the history menu display function is selected from the input device 3, the information in the history menu storage table 11 is displayed on the display device 2 as in the example shown in FIG. 4 as in the first embodiment. . Then, when selected from the displayed history menu of the display device 2, virtual screen data is created and displayed on the display device 2.

According to the fifth embodiment, when it is necessary to monitor the plant in a specific state, the monitored plant 1 is automatically displayed on the display device 2 without the operator's judgment.
It is possible to display the state of No. 4. In addition to the automatic display according to the plant state, the notification data and the task information at the time of automatic display are stored in the history menu storage table 11, the history menu is displayed when requested, and the past plant abnormality is selected by selection. The display screen at the time can be easily re-displayed.

Next, a sixth embodiment of the present invention will be described with reference to FIG.

The interactive apparatus 1 of the sixth embodiment has the configuration described in the fifth embodiment, and the contents of the plant state judgment table 17 are based on the information of the history menu storage table 11 in response to a request from the input data judgment means 4. This is a function that allows rewriting and modification.

With the above structure, the virtual screen display means 10 creates virtual screen data by the task information from the task generation means 7 by the same operation as in the fifth embodiment, and the display device 2 is operated via the multiple screen display means 6. Display the screen in the upper one area.

Here, when the automatic display condition setting function is selected from the input device 3, the input data judgment means 4 rewrites the contents of the plant state judgment table 17 based on the information of the history menu storage table 11. For example, the history menu storage table 11 stores task information and the like as display information of past specific states of the plant,
A plant state determination table 17 based on task information or the like as display information in response to a request from the input data determination means 4
Rewrite the contents of.

Next, the monitored plant 14 input to the plant state judging means 16 via the process input / output device 15
Is compared with the display timing stored in advance in the plant state determination table 17.

As a result of this comparison, when it is determined that the monitored plant 14 is in one of the specific states of the plant state determination table 17, the plant state determination means 16 causes the display reset by the automatic display condition setting function. The information is notified to the input data judging means 4.

The task generation means 7 reads task information for processing the corresponding function from the notified information from the task information storage table 9 and notifies the virtual screen display means 10 of it.

The virtual screen display means 10 creates virtual screen data using the task information from the task generation means 7, and displays the screen in one area on the display device 2 via the multiple screen display means 6.

According to the sixth embodiment, since the contents of the plant status judgment table 17 are corrected by the past display information, the monitoring screen when the monitoring in the specific status of the plant becomes necessary, depending on the situation of the plant. It will be optimal.

Next, a seventh embodiment of the present invention will be described with reference to FIG.

In the seventh embodiment, the auxiliary history menu storage table 18 is added to the second embodiment described with reference to FIG. 5, and the task information is automatically stored in the history menu storage table 11 when a task is generated. Both the example and the second embodiment in which the task information is automatically stored in the temporary storage table 13 when the task is generated and stored in the auxiliary history menu storage table 18 upon request.

In the above configuration, when the history menu save function is selected from the input device 3, the input data judgment means 4 notifies the task generation means 7, and the task generation means 7 temporarily stores the same information as shown in FIG. The data in the storage table 13 is read out and sequentially stored in the auxiliary history menu storage table 18.

On the auxiliary history menu storage table 18, the notification data, which is the information from the input data judging means 4, and the task information of the task information storage table 9 are sequentially stored, and the oldest information is discarded when full. Store information.

Here, as a first action, when the history menu display function is selected from the input device 3, the input data judgment means 4 notifies the history menu display means 12 and the history menu display means 12 makes a history. Menu storage table 1
The information stored in 1 is displayed on the display device 2 as a history menu.

When an arbitrary function is selected from the history menu screen via the input device 3, the input data judgment means 4 notifies the task generation means 7 of the selection information and the history menu storage table 11 stores the history information. Notify to delete the menu.

The task generation means 7 reads task information for processing the corresponding function from the notified information from the history menu storage table 11 and notifies the virtual screen display means 10 of it.

Here, as a second effect, when an arbitrary history menu display function is selected from the input device 3, the input data judgment means 4 notifies the history menu display means 12,
The history menu display means 12 displays the data stored in the auxiliary history menu storage table 18 on the display device 2 as a history menu.

When any function is selected from the history menu via the input device 3 while the history menu is displayed, the task generating means 7 displays task information for processing the corresponding function from the notified information as the auxiliary history menu. Memory table 18
Then, the virtual screen display means 10 is read out, and the display screen is displayed on the display device 2 via the multiple screen display means 6.

According to the seventh embodiment, the first embodiment in which the once-selected screen is automatically stored and can be directly selected and displayed from the history menu of the history menu storage table 11, and the once-selected screen is requested. The second embodiment in which the history menu stored in the auxiliary history menu storage table 18 from the temporary storage table 13 can be directly selected and displayed is possible at the same time.

Therefore, since there are two types of tables for selecting the history menu, it is possible to easily and surely redisplay the past screen by properly using these tables.

Next, an eighth embodiment of the present invention will be described with reference to FIG.

In the eighth embodiment, the data is stored in the history menu storage table 11 by request from the temporary storage table 13 in the second embodiment, but the storage destination is changed and the data is stored in the hierarchical menu table 8. It is a thing.

With the above configuration, when the hierarchical menu saving function is selected from the input device 3, the input data judging means 4
Notifying the task generation means 7, the task generation means 7 reads out the data in the temporary storage table 13 and stores it in the hierarchical menu table 8. The storage location in the hierarchical menu table 8 is overwritten even if the display information is already specified by the operator when the hierarchical menu saving request is made.

Here, as a first operation, when the history menu display function is selected from the input device 3, the input data judging means 4 notifies the history menu storage table 11 of
The history menu storage table 11 displays the information stored in the history menu storage table 11 on the display device 2 as a history menu.

When a history menu is displayed and an arbitrary function is selected from the history menu via the input device 3, the task generation means 7 stores task information for processing the corresponding function from the notification data in the history menu storage table 11. Then, the virtual screen display means 10 is read out, and the display screen is displayed on the display device 2 via the multiple screen display means 6.

As a second effect, when a menu display request is issued from the input device 3, when the hierarchical menu is displayed on the display device 2, the function stored in the history menu saving function is also combined. indicate.

When any function is selected from the function menu via the input device 3 while the function menu is being displayed, the task generation means 7 reads from the task information storage table 9 based on the notified information, and the virtual screen display means is displayed. 10 is notified and the display screen is displayed on the display device 2 via the multi-screen display unit 6.

According to the eighth embodiment, the screen once selected can be directly selected and displayed from the history menu, and the screen once selected is assigned to the hierarchical menu and directly selected from the hierarchical menu. It becomes possible to display.

Next, a ninth embodiment of the present invention will be described with reference to FIG.

In the ninth embodiment, when the data of the temporary storage table 13 is stored in the history menu storage table 11 by selecting the history menu storage function, the notification data corresponding to the entire area displayed on the display device 2 is displayed. Also, the task information and the virtual screen data are stored together, and when a display request is made from the input device 3, all the items currently displayed are erased, and all the items corresponding to all the areas newly stored in the history menu storage table 11 are erased. It is intended to be displayed.

With the above configuration, when the history menu saving function is selected from the input device 3, the input data judging means 4
Notifies the task generation means 7, and the task generation means 7
The data in the temporary storage table 13 is read, and the information including the virtual screen data for all areas is sequentially stored in the history menu storage table 11.

The history menu storage table 11 stores notification data, task information, and virtual screen data information, which are the information from the input data judging means 4, and discards the oldest information when it is full. Store information.

Next, when the history menu display function is selected from the input device 3, the input data judgment means 4 notifies the history menu display means 12 and the history menu display means 12 is notified.
Displays the information stored in the history menu storage table 11 on the display device 2 as a history menu. The history menu at this time is a collective storage of all display areas displayed in the history menu storage table 11 at the same time.

When any function is selected from the history menu displayed on the input device 3, the task generation means 7 stores task information for processing the corresponding function from the notified information in the history menu. The entire area is read from the table 11, the virtual screen display means 10 is sequentially notified, and as a result, the display processing is performed on the entire display screen.

According to the ninth embodiment, all task information corresponding to all areas displayed on the display device 2 is stored in the data of the temporary storage table 13 and the history menu storage including virtual screen data is requested. It is possible to display the entire area stored in the history menu storage table 11 on the display device 2 by storing it in the table 11 and making a request. Therefore,
It is possible to simultaneously redisplay the display screen on the display device 2 at any time.

Next, a tenth embodiment of the present invention will be described with reference to FIG.

In the tenth embodiment, in the fourth and fifth embodiments, when the plant is in the specific state, a plurality of display areas to be displayed on the display device 2 are provided so that the monitored plant 14 is in the specific state. When the display screens stored in the state determination table 17 are displayed, the display screens are sequentially displayed in a plurality of display areas on the display device 2, and the display screens that are no longer in a specific state are deleted from the display area. .

First, the information of the monitored plant 14 inputted to the plant state judging means 16 via the process input / output device 15 is compared with the display timing stored in advance in the plant state judging table 17.

As a result of this comparison, when it is determined that the monitored plant 14 is in one of the specific states of the plant state determination table 17, the plant state determination means 16 notifies the input data determination means 4.

The input data judging means 4 notifies the task generating means 7, the task generating means 7 reads task information for processing the corresponding function from the notified information from the task information storage table 9, and the virtual screen displaying means. Notify 10.

The virtual screen display means 10 creates virtual screen data using the task information from the task generation means 7, and displays the screen in one area on the multiple display area shown in FIG. 8 via the multiple screen display means 6, for example. indicate. Further, when there are monitoring screens which are display timings for the plurality of monitoring screens in the plant status judging means 16, the notification information from the plant status judging means 16 is notified to the task generating means 7 via the input data judging means 4. From the task information storage table 9, task information for processing the corresponding function is read from the notified information, and the virtual screen display means 10 is notified.

The virtual screen display means 10 creates a virtual screen from the task generation means 7 and displays the screen in the next one area on the multiple display area shown in FIG. 8 via the multiple screen display means 6, for example. .

In this way, the display timing screens are sequentially displayed in a plurality of display areas on the display device 2, and
Display device 2 for screens that are no longer displayed
Erase from the top.

Next, when a specific one screen is selected from a plurality of screens of the display device 2 and a specific display is performed, the selected screen is enlarged and displayed on the display device 2. FIG. 11 is an example of an enlarged display.

According to the tenth embodiment, when there are a plurality of monitoring screens in a specific state of the plant, the screens are displayed and erased according to the state of the plant, and the specific screens among them are also displayed by enlarged display. It will be possible.

Next, an eleventh embodiment of the present invention will be described with reference to FIG.

In the eleventh embodiment, when the display function stored in the history menu storage table 11 is selected and displayed from the input device 3 in the first to third embodiments, a plurality of display areas of the display device 2 are displayed. It is configured to request which area to display.

With the above configuration, when the history menu display function is selected from the input device 3, the input data judging means 4
The history menu display means 12 is notified, and the history menu display means 12 displays the information stored in the history menu storage table 11 on the display device 2 as a history menu.

When the history menu is displayed and an arbitrary function is selected from the history menu via the input device 3, one arbitrary display area on the display device 2 is simultaneously selected. The input data judging means 4 outputs the selection information and the notification data to the task generating means 7, and at the same time, the history menu displaying means 1
Notify 2 of the history menu deletion request.

The task generating means 7 reads task information for processing the corresponding function from the notified information from the history menu storage table 11 and selects 1 on the display device 2.
The virtual screen display means 10 is notified together with the display area information. The virtual screen display means 10 displays the selected display screen on one display area on the display device 2.

According to the eleventh embodiment, when the function once selected is directly selected and displayed from the history menu, it is not in the display area at the time of the previous display, but in the display area currently set on the display device 2. It is possible to display by specifying the area arbitrarily from.

[0156]

As described above, according to the invention of claim 1, when the task information is generated, if the generated task information is stored in the history menu storage table and the selection request notification data is present, the history menu is displayed. Corresponding task information is read from the storage table and notified to the virtual screen display means to display the screen requested to be selected on the display device. As a result, the history menu as a display index for retrieving the past screen once selected by the operator can be re-displayed, and the necessary display data can be immediately re-displayed on the display device from this history menu. Therefore, it is not necessary to store or memorize past screen classifications and functions as in the past, and a complicated selection operation for selecting a required screen is unnecessary.

According to the second aspect of the present invention, when the task information is generated, the task information is stored in the temporary storage table, and thereafter, there is notification data of a task information storage request,
When the selection request notification data is transferred and stored from the temporary storage table to the history menu storage table, the corresponding task information is read from the history menu storage table and notified to the virtual screen display means to notify the display device. The screen requested to be selected is displayed. As a result, the task generation information displayed on the display device is temporarily stored and is stored in the history menu storage table only when a storage request is made, so that only the necessary items are stored in the history menu storage table. Therefore, only the necessary history menu can be displayed in the past screen, so that the necessary past screen can be easily redisplayed.

According to the third aspect of the present invention, when the task information is stored in the temporary storage table, the task information corresponding to all the areas displayed on the display device is stored, so that the task information of all the areas displayed on the display device is stored. Stored in the history menu storage table upon request. Therefore, it is possible to store the history menu for all areas on the display device at a certain point in the past and display the entire areas again at once.

According to the invention of claim 4, when the task information stored in the temporary storage table is transferred to and stored in the history menu storage table, virtual screen data corresponding to all areas displayed on the display device is also stored. Therefore, when directly selecting and displaying the screen once selected from the history menu, it becomes possible to select from the virtual screen data as the screen image that saved the screen, and the past numerical values of the plant included in the virtual screen data fluctuate. The data can be displayed again as it is.

According to the invention of claim 5, when it is necessary to monitor the specific state of the plant, the state of the monitored plant can be automatically displayed on the display device without the operator's judgment. In addition, the task information when it is automatically displayed is stored in the history menu storage table, the history menu is displayed when requested, and the display screen for past plant abnormalities can be easily and quickly redisplayed by selection. You can

According to the invention of claim 6, since the contents of the plant state judgment table are corrected by the display information in the past, the monitoring screen when it is necessary to monitor in the specific state of the plant is optimized according to the situation of the plant. Will be things.

According to the invention of claim 7, the screen once selected can be directly selected and displayed from the history menu of the history menu storage table which is automatically stored, and at the same time the screen once selected can be assisted from the temporary storage table by a request. The history menu can be directly selected and displayed from the history menu stored in the history table storage table. Therefore, since there are two types of tables for selecting the history menu, it is possible to easily and surely redisplay the past screen by properly using these tables.

According to the eighth aspect of the present invention, when the menu is displayed on the display device by the menu display means, the task information transferred to and stored in the menu table is also displayed. Therefore, the screen once selected can be directly selected and displayed from the history menu, and the screen once selected can be stored in the menu table and the task information can be directly selected and displayed together with the menu screen.

According to a ninth aspect of the present invention, all task information corresponding to all areas displayed on the display device is stored in the data of the temporary storage table and stored in the history menu storage table including virtual screen data when requested. However, it is possible to display the entire area stored in the history menu storage table on the display device upon request. Therefore, it is possible to simultaneously redisplay the display screen on the display device at any time.

According to the tenth aspect of the present invention, when there are a plurality of monitoring screens in the specific state of the plant, the screens are displayed and erased according to the state of the plant, and the specific screen among them can be monitored by the enlarged display. Becomes

According to the invention of claim 11, when the function once selected is directly selected and displayed from the history menu, any function is selected from the display areas currently set on the display device, not on the display area at the time of the previous display. The area can be specified and displayed.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a dialogue device showing a first embodiment of the present invention.

FIG. 2 is a flowchart showing a processing procedure of a task generation means of FIG.

FIG. 3 is a configuration diagram showing a history menu storage table of FIG.

FIG. 4 is an explanatory diagram in which a history menu screen is displayed on the display device of FIG.

FIG. 5 is a configuration diagram of a dialogue device showing a second embodiment of the present invention.

FIG. 6 is an explanatory diagram showing a temporary storage table of FIG.

FIG. 7 is a configuration diagram showing a temporary storage table according to a third embodiment of the present invention.

FIG. 8 is an explanatory diagram showing a display screen displayed on the display device according to the fourth embodiment of the present invention.

FIG. 9 is a configuration diagram of a dialogue device showing a fifth embodiment of the present invention.

FIG. 10 is a block diagram of a dialogue device showing a seventh embodiment of the present invention.

FIG. 11 is an explanatory diagram showing an example of a display screen according to the tenth embodiment of the present invention.

FIG. 12 is a configuration diagram of a dialog device showing a conventional example.

FIG. 13 is an explanatory diagram showing an example of a hierarchical menu.

FIG. 14 is an explanatory diagram showing the hierarchical menu of FIG. 13 on a display screen.

15 is an explanatory diagram showing a display screen when a classification and a function are selected from the hierarchical menu screen of FIG.

FIG. 16 is an explanatory diagram showing an example of a plant state determination table.

FIG. 17 is an explanatory diagram showing a plurality of display screens displayed on a display device.

[Explanation of Codes] 1 Dialogue device 2 Display device 3 Input device 4 Input data determination means 5 Hierarchical menu display means 6 Multiple screen display means 7 Task generation means 8 Hierarchical menu table 9 Task information storage table 10 Virtual screen display means 11 History Menu storage table 12 History menu display means 13 Temporary storage table 14 Monitored plant 15 Process input / output device 16 Plant state determination means 17 Plant state determination table 18 Auxiliary history menu storage table

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Tetsuo Murai No. 1 Toshiba-cho, Fuchu-shi, Tokyo Inside Toshiba Fuchu factory (72) Inventor Hidenobu Nishiyama No. 1 Toshiba-cho, Fuchu-shi, Tokyo Inside Toshiba Fuchu factory ( 72) Inventor Yasumi Nakamura No. 1 Toshiba-cho, Fuchu-shi, Tokyo Inside the Fuchu factory, Toshiba Corporation

Claims (11)

[Claims] 1. A display device, an input device for inputting a processing request according to display information displayed on the display device, a content input from the input device, a corresponding process is executed, and the result is displayed. Input data determination means for outputting notification data as command information to be displayed on the display device,
Menu display means for displaying the contents of a menu table storing a menu screen for selecting a screen to be displayed on the display device on the display device, and program information for creating display screen data in accordance with the notification data. Task generation means for generating task information from a task information storage table for storing the task information, and virtual screen display means for generating and storing virtual screen data capable of immediately displaying a screen on the display device based on the task information, In an interactive device comprising screen display means for displaying virtual screen data stored in the virtual screen display means on the display device, the notification data and task information generated by the task generation means are sequentially updated and stored by a fixed amount. Request to display the history menu storage table and the contents of this history menu storage table When the history menu is displayed on the display device as a history menu, and when the history menu is displayed on the display device, the corresponding task information is read from the history menu storage table by the notification data of the selection request. And a means for notifying the virtual screen display means. 2. A display device, an input device for inputting a processing request according to the display information displayed on the display device, a content input from the input device, a corresponding process is executed, and the result is displayed. Input data determination means for outputting notification data as command information to be displayed on the display device,
Menu display means for displaying the contents of a menu table storing a menu screen for selecting a screen to be displayed on the display device on the display device, and program information for creating display screen data in accordance with the notification data. Task generation means for generating task information from a task information storage table for storing the task information, and virtual screen display means for generating and storing virtual screen data capable of immediately displaying a screen on the display device based on the task information, In an interactive device comprising screen display means for displaying virtual screen data stored in the virtual screen display means on the display device, the notification data and task information generated by the task generation means are sequentially updated and stored by a fixed amount. A temporary storage table, the notification data stored in the temporary storage table, and A history menu storage table for updating and storing a certain amount of task information according to storage request notification data,
When the contents of the history menu storage table are requested to be displayed, history menu display means for displaying the history menu on the display device, and when the history menu is displayed on the display device, the history menu is displayed according to selection request notification data. And a means for notifying the virtual screen display means of corresponding task information from a storage table. 3. The temporary storage table, when storing the notification data and the task information, stores the notification data and the task information corresponding to the entire area displayed on the display device. 2. The dialogue device according to 2. 4. When the notification data and task information stored in the temporary storage table are stored in the history menu storage table as storage request notification data,
4. The interactive apparatus according to claim 3, wherein virtual screen data corresponding to all areas displayed on the display device is also stored. 5. A process input / output device for inputting a process state of a plant, a specific plant state is determined from the plant state input from the process input / output device and determination data of a plant state determination table, and a display request is issued. 5. The dialogue apparatus according to claim 1, further comprising a plant state judging means for outputting to the input data judging means. 6. The content of the plant state determination table is reset based on the content of the history menu storage table by the reset request notification data from the input data determination means. The interactive device described. 7. A display device, an input device for inputting a processing request according to display information displayed on the display device, a content input from the input device, a corresponding process is executed, and the result is displayed. Input data determination means for outputting notification data as command information to be displayed on the display device,
Menu display means for displaying the contents of a menu table storing a menu screen for selecting a screen to be displayed on the display device on the display device, and program information for creating display screen data in accordance with the notification data. Task generation means for generating task information from a task information storage table for storing the task information, and virtual screen display means for generating and storing virtual screen data capable of immediately displaying a screen on the display device based on the task information, In an interactive device comprising screen display means for displaying virtual screen data stored in the virtual screen display means on the display device, the notification data and task information generated by the task generation means are sequentially updated and stored by a fixed amount. A temporary storage table, a first history menu storage table, and the temporary storage table A second history menu storage table for updating and storing a certain amount of the notification data and task information stored in the memory according to the storage request notification data, and when the contents of the first or second history menu storage table are requested to be displayed. , History menu display means for displaying as a history menu on the display device, and when the history menu is displayed on the display device, corresponding task information is displayed from the first or second history menu storage table by notification data of a selection request. And a unit for reading out and notifying the virtual screen display unit. 8. A display device, an input device for inputting a processing request according to the display information displayed on the display device, a content input from the input device, a corresponding process is executed, and the result is displayed. Input data determination means for outputting notification data as command information to be displayed on the display device,
Menu display means for displaying the contents of a menu table storing a menu screen for selecting a screen to be displayed on the display device on the display device, and program information for creating display screen data in accordance with the notification data. Task generation means for generating task information from a task information storage table for storing the task information, and virtual screen display means for generating and storing virtual screen data capable of immediately displaying a screen on the display device based on the task information, In an interactive device comprising screen display means for displaying virtual screen data stored in the virtual screen display means on the display device, the notification data and task information generated by the task generation means are sequentially updated and stored by a fixed amount. History menu memory table and temporary memory table, and this temporary memory table The stored notification data and task information are stored in the menu table according to the storage request notification data, and when the menu is displayed on the display device by the menu display means, the task information stored in the menu table is also displayed. And means for displaying the contents of the history menu storage table,
History menu display means for displaying as a history menu on the display device, and when the history menu is displayed on the display device, corresponding task information is read from the history menu storage table by the notification data of the selection request to display the virtual screen. And a means for notifying the means. 9. When the history menu is displayed on the display device, the virtual screen data of the entire area of the display device stored in the history menu storage table is taken out by the notification data of the screen display request to extract the virtual screen data. 5. The dialog device according to claim 4, wherein the display device is caused to display the screen of the entire area through the screen display means and the screen display means. 10. A plurality of display areas of the display device are sequentially displayed in response to a case where the plant is brought into a plurality of specific states by the plant state judging means, and the display areas are displayed in response to cancellation of the specific states. 7. The interactive apparatus according to claim 5, wherein the dialogue devices are sequentially erased. 11. A means for designating an area to be displayed by a display device when displaying the contents of the history menu storage table and selecting one of the history menus from the table is added. 9. The dialogue apparatus according to claim 8.