JPH10293610A - Plant monitor controller - Google Patents

Abstract

PROBLEM TO BE SOLVED: To smooth the running operation of an operator and to cope with a monitor request of an important item and an operation request of high urgency by managing a monitor screen to be displayed when a display request of the monitor screen is repeatedly made from an automatic monitoring means. SOLUTION: An automatic monitoring means 1 automatically selects a monitor screen that corresponds to a plant state which is preliminarily set based on process data that is sequentially inputted from a plant, outputs a display request and outputs it to an automatic monitor screen managing device 2. When the device 2 repeatedly receives a display request of a monitor screen from the means 1, it manages a monitor screen that should be shown on a display device 3, decides a monitored image which should be shown on the monitor screen in accordance with precedence of a monitored image and also makes the other overlapped monitored images wait for display. That makes it possible to notify the occurrence of an automatic monitored image without preventing the display of a monitored image that is now shown even when a display request of an automatic monitored image occurs due to change of a plant state in the middle of monitoring a monitor screen.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plant monitoring and control apparatus for monitoring process data sequentially input from a plant and automatically displaying a monitoring screen corresponding to a preset plant state.

[0002]

2. Description of the Related Art For example, in a large-scale plant such as a nuclear power plant, a monitor screen is displayed on a display device, and an operator monitors and controls the plant through the monitor screen. The display of the monitoring screen may be performed manually or automatically. Monitoring screens for monitoring important parameters and operations with high urgency in the event of plant abnormalities are automatically displayed, and the monitoring screen can be selected and displayed on the display device at the discretion of the operator. .

In a plant monitoring and control apparatus having such an automatic monitoring function, when a new monitoring screen display request is received, the display is automatically switched from the currently displayed monitoring screen to a new monitoring screen. Is performed.

[0004]

However, in spite of the fact that the operator monitors the monitoring screen during the operation of the plant,
Since the screen is automatically switched to the automatic monitoring screen, it is necessary to redisplay the monitoring screen that has been monitored before the switching. Further, when the operation or setting of the device is performed through the monitoring screen, the monitoring screen is switched during the operation or setting of the device, so that the operation may be interrupted or an erroneous operation may occur.

Therefore, some of such plant monitoring and control devices have a selection switch for stopping the automatic switching function of the monitoring screen by the automatic monitoring function. When the automatic switching function of the monitoring screen by the automatic monitoring function is stopped by the selection switch, the display switching of the monitoring screen does not occur during the operation of the device. It is conceivable that an operation request cannot be immediately responded.

SUMMARY OF THE INVENTION An object of the present invention is to provide an automatic plant monitoring and control device capable of smoothly performing a driving operation by an operator and responding to an important item monitoring request or an urgent operation request.

[0007]

According to a first aspect of the present invention, there is provided a plant monitoring and control apparatus for automatically selecting a monitoring screen corresponding to a preset plant state based on process data sequentially input from a plant and requesting a display. And an automatic monitoring screen management device for managing a monitoring screen to be displayed on the display device when a request for displaying a monitoring screen is repeatedly issued from the automatic monitoring means. .

[0008] In the plant monitoring control apparatus according to the first aspect of the present invention, the automatic monitoring means automatically selects a monitoring screen corresponding to a preset plant state and outputs a display request based on process data sequentially input from the plant. I do.
Then, the automatic monitoring screen management device manages the monitoring screen to be displayed on the display device when a request for displaying the monitoring screen is duplicated from the automatic monitoring means.

According to a second aspect of the present invention, in the plant monitoring control apparatus according to the first aspect, the automatic monitoring screen management apparatus includes: a screen information database for storing screen information of a monitoring screen prepared in advance; A control unit for switching the display of the monitor screen to the display device or waiting for display based on the priority of the monitor screen requested to be displayed by the monitoring means; A screen number storage unit that stores a certain number of monitoring screens, and a screen information storage unit that extracts and stores screen information of monitoring screens waiting to be displayed from a screen information database.

According to a second aspect of the present invention, in addition to the function of the first aspect, the control unit of the automatic monitoring screen management apparatus includes a control unit for controlling the monitoring screen requested to be displayed by the automatic monitoring unit. Performs display switching of the monitoring screen to the display device or waits for display based on the priority, and stores the number of monitoring screens waiting to be displayed on the display device among the monitoring screens requested to be displayed in the screen number storage unit, and displays the number. The screen information of the waiting monitoring screen is extracted from the screen information database and stored in the screen information storage unit.

According to a third aspect of the present invention, in the plant monitoring control apparatus according to the second aspect, the control unit determines the priority of the monitoring screen requested to be displayed by the automatic monitoring means based on the screen information database. When the priority is high, the display processing of the monitoring screen is switched to the display device when the priority is low, and when the priority is low, the control processing means waits for the display and the display device based on the number of screens stored in the screen number storage unit. Background color processing means for determining the background color of the displayed monitoring screen; erasing processing means for erasing the screen information of the monitoring screen waiting for display stored in the screen information storage unit based on the erasing conditions for the monitoring screen waiting for display; And a screen display processing means for displaying the monitoring screen waiting for display on the display device when the operator requests display of the monitoring screen waiting for display.

According to a third aspect of the present invention, in addition to the function of the second aspect, the control processing means of the control unit receives a display request from the automatic monitoring means based on the screen information database. The priority of the monitoring screen is determined, and when the priority is high, the display of the monitoring screen is switched to the display device, and when the priority is low, the display waits, and the background color processing means is stored in the screen number storage unit. The background color of the monitoring screen displayed on the display device is determined based on the number of screens. Then, the screen display processing means displays the monitor screen waiting for display on the display device when the operator requests display of the monitor screen waiting for display. The deletion processing unit deletes the screen information of the monitoring screen waiting for display stored in the screen information storage unit based on the erasing condition of the monitoring screen waiting for display.

According to a fourth aspect of the present invention, in the plant monitoring control apparatus according to the third aspect, the erasure processing means includes a screen information based on an elapsed time from a display request as an erasure condition of the monitoring screen waiting to be displayed. The screen information of the monitoring screen awaiting display stored in the storage unit is deleted.

According to a fourth aspect of the present invention, in addition to the operation of the third aspect, when a predetermined time has elapsed since the display request was issued,
The screen information of the monitoring screen waiting for display stored in the screen information storage unit is deleted by the deletion processing unit.

According to a fifth aspect of the present invention, in the plant monitoring control apparatus according to the third aspect, the control processing means indicates that there is a monitoring screen waiting to be displayed on the monitoring screen being displayed on the display device. A waiting information area is displayed.

According to a fifth aspect of the present invention, in addition to the function of the third aspect, when there is a monitoring screen waiting to be displayed, the waiting information is displayed on the monitoring screen being displayed on the display device. The area is displayed and the operator is notified accordingly.

According to a sixth aspect of the present invention, in the plant monitoring control apparatus according to the fifth aspect, the control processing means is configured to execute any one of the four corners on the monitoring screen displaying the waiting information area on the display device. The plant monitoring and control device according to claim 5, wherein the information is displayed on a display.

According to a sixth aspect of the present invention, in addition to the operation of the fifth aspect, the waiting information area may include any one of the four corners on the monitoring screen displayed on the display device by the control processing means. Is displayed in one place.

According to a seventh aspect of the present invention, in the plant monitoring control apparatus according to the fifth or sixth aspect, the control processing means blinks the waiting information area.

[0020] In the plant monitoring and control apparatus according to the invention of claim 7, in addition to the effect of the invention of claim 5 or 6, the waiting information area is blinked by the control processing means to call attention of the operator. .

The plant monitoring and control apparatus according to the invention of claim 8 is the invention according to claims 5 to 7,
The control processing means displays the number of monitoring screens waiting to be displayed in the waiting information area.

In the plant monitoring and control apparatus according to an eighth aspect of the present invention, in addition to the functions of the fifth to seventh aspects, the number of monitoring screens waiting to be displayed is displayed in the waiting information area by the control processing means. Notify the operator of the number of monitoring screens waiting to be displayed.

According to a ninth aspect of the present invention, in the plant monitoring control apparatus according to the fifth aspect of the present invention, when the erasing processing means erases screen information of the monitoring screen waiting to be displayed,
The display is updated so that the display of the waiting information area matches the erased state.

According to a ninth aspect of the present invention, in addition to the function of the fifth aspect, when the screen information of the monitoring screen waiting to be displayed is deleted, the display of the waiting information area is deleted. The display is updated to match the state that was set.

According to a tenth aspect of the present invention, in the plant monitoring control apparatus according to the fifth aspect, the screen display processing means displays the monitor screen waiting for display on the display device, and the monitor screen waiting for display is reduced. In some cases, the display is updated so that the display of the waiting information area matches the state.

According to a tenth aspect of the present invention, in addition to the function of the fifth aspect, when the monitoring screen waiting for display is displayed on the display device and the number of monitoring screens waiting for display decreases, The display of the waiting information area is updated so as to match the state.

According to the eleventh aspect of the present invention, in the plant monitoring control apparatus according to the third aspect, the screen display processing means is configured to wait for a display of a monitoring screen waiting for display by an operator. Are displayed from the newest monitoring screen among the monitoring screens.

In the plant monitoring and control apparatus according to the eleventh aspect of the present invention, in addition to the operation of the third aspect of the present invention, when an operator requests a display of a monitoring screen waiting to be displayed, the screen display processing means is provided. , From the most recent monitoring screen among the monitoring screens waiting to be displayed.

[0029]

Embodiments of the present invention will be described below. FIG. 1 is a block diagram showing an embodiment of the present invention.

The automatic monitoring means 1 automatically selects a monitoring screen corresponding to a preset plant state based on process data sequentially input from the plant and outputs a display request. The display request is automatically monitored. It is input to the screen management device 2. The automatic monitoring screen management device 2 manages a monitoring screen to be displayed on the display device 3 when a request for displaying a monitoring screen is duplicated from the automatic monitoring means 1. The monitoring screen to be displayed on the monitoring screen is determined according to the priority, and another duplicated monitoring screen is to be displayed.

The automatic monitoring screen management device 2 is based on a screen information database 4 for storing screen information of monitoring screens prepared in advance, and a display device based on the priority of the monitoring screen requested to be displayed by the automatic monitoring means 1. A display unit for switching the display of the monitor screen to the display unit 3 or waiting for display; a screen number storage unit 6 for storing the number of monitor screens waiting to be displayed on the display device 3 among the monitor screens requested to be displayed; And a screen information storage unit 7 for extracting screen information of the monitoring screen from the screen information database 4 and storing the screen information.

The control unit 5 of the automatic monitoring screen management device 2
Has an input determining means 8 for determining the presence or absence of an automatic monitoring stop signal S1 when a display request is received from the automatic monitoring means 1. The input determination means 8 determines whether display of a predetermined monitoring screen on the display device 3 in response to a change in the state of the plant is permitted based on the automatic monitoring stop signal S1. When S1 is present, even if there is a display request from the automatic monitoring means 1, the display of the automatic monitoring screen on the display device 3 is not performed. On the other hand, when there is no automatic monitoring stop signal S1, the control processing means 9 is started. Further, a screen display request signal S2 from the operator is input to the input determining means 8, and based on the screen display request signal S2, a screen display processing for displaying and outputting an automatic monitoring screen waiting for display to be described later on the display device 3 is performed. Activate the means 10.

Here, in the display request of the automatic monitoring screen from the automatic monitoring means 1, a screen number is input as an identifier uniquely indicating the monitoring screen. When activated by the input judging means 9, the control processing means 9 retrieves screen information corresponding to the screen number specified by the automatic monitoring screen display request from the automatic monitoring means 1 from the screen information database 4 and requests the display information. The priority of the monitoring screen with the error is determined. When the priority is equal to or higher than the predetermined priority (when the priority is high), the display of the monitoring screen is switched to the display device 3. On the other hand, when the priority is less than the predetermined priority (when the priority is low), the display waits.

For example, as priority, "0", "1",
Three levels of "2" are prepared in advance, and when the priority of the read screen number is "2", the monitor screen is updated and displayed on the display device 3 without waiting for display. Also,
If it is equal to or less than “1”, that is, less than “2”, the number of screens in the screen number storage unit 6 is increased by one, and the screen information of the monitoring screen awaiting display is stored in the screen information storage unit 7. As a result, the screen information of the automatic monitoring screen waiting to be displayed is transmitted to the screen information database 4 by the control processing means 9.
And stored in the screen information storage unit 7.

Then, the control processing means 9 displays the waiting information area on a part of the monitoring screen being displayed on the display device 3, and displays the number of monitoring screens waiting to be displayed on the waiting information area.
The waiting information area is displayed as an icon, for example. As a result, if the number of screens in the screen number storage unit 6 is one or more, the number of automatic monitoring screens is displayed on the icon displayed in the waiting information area. Can be notified.

When the operator requests a display of an automatic monitoring screen waiting for display while the monitoring screen waiting for display exists, the screen display processing means 10 displays the monitoring screen waiting for display on the display device 3. Perform the following processing. In this case, the monitoring screens that are waiting to be displayed are displayed from the latest one.
Since the number of monitoring screens waiting to be displayed is reduced by one due to the display of the automatic monitoring screen waiting for display on the display device 3, the number of screens in the waiting information area is updated by subtracting one.

The background color processing means 11 determines the background color of the monitor screen displayed on the display device 3 on the basis of the number of screens stored in the screen number storage section 6. Is made intuitive by the background color. That is, the background color of the display device 3 is changed according to the number of screens in the screen number storage unit 6 to notify the user of the presence of the automatic monitoring screen, and the approximate number of screen information stored in the screen information storage unit 7. Notify.

The deletion processing means 12 deletes the screen information of the monitoring screen waiting for display stored in the screen information storage unit 6 based on the erasing condition of the monitoring screen waiting for display. Is automatically deleted when a predetermined time has elapsed from the display waiting start time, as described later.

FIG. 2 is a flowchart showing the processing contents of the control unit 5. The input determination means 8 outputs the automatic monitoring stop signal S
Is determined (S1). If there is a function stop request of the automatic monitoring means 1, the display of the automatic monitoring screen on the display device 3 is prohibited. End the function.

On the other hand, when there is no automatic monitoring stop signal S1, it is determined whether or not there is a display request of the automatic monitoring screen from the automatic monitoring means 1 (S2). Then, when there is a request to display the automatic monitoring screen, the control processing means 9 is activated and its control processing function is executed (S3), and thereafter the erasing processing means 12 is executed (S4). In other words, the monitor screen with the higher priority is updated on the display device 3, and the monitor screen with the lower priority is on standby. In this case, an icon indicates that there is a monitoring screen waiting to be displayed in a part of the waiting information area of the currently displayed monitoring screen. Thereafter, an automatic monitoring screen that satisfies the erasing condition is determined from the automatic monitoring screens waiting to be displayed, and if there is an automatic monitoring screen that satisfies the erasing condition, the automatic monitoring screen is erased.

If it is determined in step S2 that there is no request to display the automatic monitoring screen, it is determined whether or not the driver has a screen display request signal S2 (S5). Then, if there is a screen display request signal S2 by the operator via the display device 3, the screen display processing function of the screen display processing means 10 is executed to display an automatic monitoring screen waiting for display on the display device 3. Also in this case, after the processing, the erasing processing means 12 is activated to execute the erasing processing function (S4). That is, an automatic monitoring screen that satisfies the erasing condition is determined from the automatic monitoring screens waiting to be displayed, and if there is an automatic monitoring screen that satisfies the erasing condition, the automatic monitoring screen is erased.

Next, FIG. 3 is a flowchart showing the processing contents of the control processing means 9 of the control unit 5. Control processing means 9
When there is a display request for the automatic monitoring screen from the automatic monitoring means 1, the display request is input and the time at which the display request was made is stored as the display request occurrence time (S1). Then, the screen number is extracted from the display request, and the screen attribute data of the screen information corresponding to the screen number is extracted from the screen information database 4 (S2). The screen attribute data is shown in FIG.
Screen number, screen priority, screen title,
It consists of the display time and the display time.

That is, the screen priority is divided into three levels of "0", "1", and "2" according to the screen number, and the priority "2" is the highest priority of the screen level,
“0” indicates the lowest priority. The screen title is used when notifying that there is a monitoring screen waiting to be displayed in the wait information area, and the time until erasure is determined when the erasure processing unit 12 determines whether the erasure condition is satisfied as described later. Used for In addition, the display color determines the display color for the waiting information area, and the display color is given priority (importance).
The display can be changed by using

When inputting the screen attribute data from the screen database, the control processing means 9 determines the priority of the screen number requested to be displayed. Then, it is determined whether or not the priority is "2" (S3). If the priority is "2", the monitoring screen is displayed on the display device 3 (S4).

On the other hand, when the screen priority is less than “2”,
The erase time is calculated from the sum of the stored occurrence time and the time until the screen attribute data is erased (S5). Then, the display color of the screen attribute data is set to the icon display color, and the screen title is set to the icon title (S6). Further, 1 is added to the number of screens stored in the number-of-screens storage unit 6 to update the number of screens (S7), and the screen information of the screen number requested to be displayed is stored in the screen information storage unit 7 (S8). ). That is, the erasing time calculated in step S5 is stored in the screen information storage unit 7.

Thereafter, the background color processing means 11 is activated to set the background color of the monitoring screen displayed on the display device 3 (S9). The background color processing means 11 determines the background color based on the number of monitoring screens waiting to be displayed. Then, the display of the icon is requested in the waiting information area on the monitoring screen (S1).
0).

FIG. 5 is a flowchart showing the processing contents of the background color processing means 11. In the background color processing means 11,
The background color of the display device 3 is determined from the number of screens in the screen number storage 6 according to the following procedure. First, black is stored in the variable ICOLOR, and the number of screens in the screen number storage unit 6 is stored in the variable INUM (S1). Then, it is determined whether or not the variable INUM (the number of screens) is equal to or less than a first predetermined number (for example, 5).
The yellow is stored in OLOR (S3). Then, the background color is displayed in yellow (S4).

In step S2, the variable INUM is set to the first
When the variable INUM is greater than or equal to 5 and is equal to or less than the second predetermined number of 10 (S5), orange is stored in the variable ICOLOR if the variable INUM is greater than or equal to 6 and less than or equal to 10 (S6). ). Then, the background color is displayed in orange (S4).

In step S5, the variable INUM
Is greater than or equal to the second predetermined number of 10, it is determined whether or not is less than or equal to the third predetermined number of 15 (S7).
If UM is 10 or more and 15 or less, red is stored in the variable ICOLOR (S8). Then, the background color is displayed in red (S4).

The variable INU is determined in step S7.
If it is determined that M exceeds 15, the variable ICOLO
M is stored in white (S9), and the white stored in the variable ICOLOR is displayed as the background color of the display device 3 (S9).
4).

FIG. 6 is a flowchart showing the processing contents of the erasing processing means 12. In this erasing processing means 12,
The automatic monitoring screen stored in the screen information storage unit 7 is searched for the one at the erasing time, deleted from the screen information storage unit 7, and the number of screens in the screen number storage unit 6 is reduced. Also,
The background color of the display device 3 is reset and the notification icon is reset.

In FIG. 6, the current time is set in a variable CTIME, and the number of screens is set in a variable INUM and a variable GNUM.
Further, "-1" is set to the variable I (S1). Variable IN
It is determined whether or not UM is 0 or less. If it is 0 or less, there is no monitoring screen waiting to be displayed, and the process is terminated (S
2). When the variable INUM is 1 or more, the variable I is set to 1
Is added (S3), and the updated variable I is compared with the variable INUM (S4).

Now, assuming that the number of screens is 3, the variable IN
Since UM is 3 and variable I is 0, variable I is smaller. Therefore, the process proceeds to step S5. In step S5, the erasing time of the I-th, that is, the 0th screen information stored in the screen information storage unit 7 is extracted and stored in a variable DTIM. Then, the variable CTIME storing the current time is compared with the variable DTIME storing the erasing time of the 0th screen information (S6). If the variable CTIME matches the erasing time, the screen information is deleted and 1 is subtracted from the variable GNUM. And step S3
Return to (S7). On the other hand, when the current time does not coincide with the erasing time, the process returns to step S3. In the same manner, steps S3 to S7 are repeated for the number of screens (variable INUM).
Is repeated.

When the processing from step S3 to step S7 is repeated for the number of screens set in the variable INUM, the variable I becomes equal to or larger than the variable INUM in the determination in step S4, and the process proceeds to step S8. In step S8, it is determined whether there is any erased screen information. If there is no erased screen information, the process ends, and the process returns to the start after a predetermined time period. On the other hand, when there is screen information that has been erased, the part that has been erased in the year information storage unit 7 is filled and (S
9), the number of screens in the screen number storage unit 6 is set to a variable GNUM (S10).

Next, the background color processing means 12 is activated to set the background color of the monitoring screen displayed on the display device 3 (S1).
1). Then, referring to the screen information stored in the variable NUM, the icon display color is determined, the screen title is determined (S12), and the display update of the icon is requested in the waiting information area on the monitoring screen (S13). . That is, when there is screen information deleted by the deletion unit 12, the icon display in the waiting information area is also updated.

FIG. 7 shows a screen display processing means 10 of the control unit 5.
5 is a flowchart showing the processing contents of FIG. The screen display processing means 10 starts processing in response to a screen display request signal S2 of the operator from the display device 3. At that time, the latest automatic monitoring screen stored in the screen information storage unit 7 is extracted (S1).
The extracted automatic monitoring screen is displayed on the display device 3 (S2). That is, the last automatic monitoring screen of the number of screens in the screen number storage unit 6 is displayed. Since the monitoring screen is no longer waiting to be displayed, the screen information of the displayed automatic monitoring screen is deleted from the screen information storage unit 7 (S3).
Further, the number of screens in the screen number storage unit 6 is reduced by 1 (S4), the background color processing means 12 is activated, and the background color of the monitoring screen displayed on the display device 3 is set (S5). Further, the icon display color is determined, the screen title is determined (S6), and the display update of the icon is requested in the waiting information area on the monitoring screen (S7). That is, when there is screen information deleted by the deletion unit 12, the icon display in the waiting information area is also updated.

Next, the waiting information area on the monitoring screen will be described. FIG. 8 shows a case where notification is made by displaying an icon when a notification that there is an automatic monitoring screen waiting to be displayed is provided to the waiting information area on the monitoring screen. The icon 13 is displayed on the monitoring screen displayed on the display device 3 when the automatic monitoring screen is waiting to be displayed. When there are a plurality of automatic monitoring screens, the latest one is displayed over the oldest one.

The display position is any one of the four corners of the display device 3. In general, the monitoring screen displayed on the display device 3 tends to be designed so that the corners of the screen are not used as much as possible from the viewpoint of ease of viewing and convenience of operation. Therefore, even if the icon 13 is displayed in the corner, the important information is hardly hidden. Therefore, the possibility of hiding important information is reduced in the four corners of the display device 3.

The icon 13 displays the number of screens waiting to be displayed. The figure shows a case where two automatic monitoring screens are waiting to be displayed. It is also effective to blink (flash) the icon 13 or make a sound to draw the attention of the operator, or to use them together.

When the automatic monitoring screen is displayed, the cursor is moved to the icon 13 and a button of a pointing device such as a mouse or a tracker ball is pressed, whereby
Do this by clicking. In this case, if the display device 3 has a touch screen, an automatic monitoring screen is displayed by pressing the icon 13 with a finger.

FIG. 9A shows a small notification screen 14 for notifying the automatic monitoring screen to the waiting information area on the monitoring screen.
Shows what was done. The notification screen 14 is displayed on the monitoring screen displayed on the display device 3 when the automatic monitoring screen is waiting to be displayed. As in the case of FIG.
If there are a plurality of automatic monitoring screens waiting to be displayed, the latest one is displayed over the oldest one. The display position is set at any one of the four corners of the display device 3.

As shown in FIG. 9B, the notification screen 14 displays the number of screens waiting to be displayed and the screen title. In this case, the notification screen 14 is used to draw the operator's attention.
Can be blinked, sounded, or used together. When the automatic monitoring screen is displayed, the cursor is moved to the notification screen and a button of a pointing device, such as a mouse or a tracker ball, is pressed to perform a click. If the display device 3 has a touch screen (input device from the screen), the automatic monitoring screen is displayed by directly pressing the notification screen 14 with a finger.

In the above description, the latest one is displayed so as to be superimposed on the old one. However, the predetermined number is displayed without being superimposed, and when the predetermined number is exceeded, the superimposed one is displayed. Is also good. Also, the information may be displayed in a superimposed manner according to the priority. For example, the ones with the priority "1" and the ones with the priority "0" may be distinguished and displayed, and the latest one may be displayed on top of the old one.

As described above, when the automatic monitoring screen is displayed at the request of the operator, the latest automatic monitoring screen can be displayed since the automatic monitoring screen (display request) stored as the last display standby is displayed.

[0065]

As described above, according to the plant monitoring and control apparatus of the present invention, even if a request for displaying the automatic monitoring screen occurs due to a change in the plant status while monitoring the monitoring screen, the monitoring currently being displayed is performed. The occurrence of the automatic monitoring screen can be notified without interrupting the screen display. In addition, since a display request for the automatic monitoring screen waiting to be displayed can be made as needed, the automatic monitoring screen waiting to be displayed can be easily displayed.

When an important monitoring screen with a high priority is automatically monitored, the screen is displayed without making a display request, so that the important automatic monitoring screen can be displayed with priority. Become

[Brief description of the drawings]

FIG. 1 is a block configuration diagram of a plant monitoring and control device according to an embodiment of the present invention.

FIG. 2 is a flowchart showing processing contents of a control unit according to the embodiment of the present invention.

FIG. 3 is a flowchart showing processing contents of control processing means of a control unit according to the embodiment of the present invention.

FIG. 4 is an explanatory diagram of screen attribute data stored in an on-screen database according to the embodiment of the present invention.

FIG. 5 is a flowchart showing processing contents of a background color processing means of the control unit according to the embodiment of the present invention.

FIG. 6 is a flowchart illustrating processing contents of an erasing processing unit of the control unit according to the embodiment of the present invention.

FIG. 7 is a flowchart showing processing contents of a screen display processing means of the control unit according to the embodiment of the present invention.

FIG. 8 is an explanatory diagram of a monitoring screen when an icon is displayed in a waiting information area on the monitoring screen according to the embodiment of the present invention.

FIG. 9 is an explanatory diagram of a monitoring screen when a notification screen is displayed in a waiting information area on the monitoring screen according to the embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Automatic monitoring means 2 Automatic monitoring screen management device 3 Display device 4 Screen information database 5 Control part 6 Screen number storage part 7 Screen information storage part 8 Input determination means 9 Control processing means 10 Screen display processing means 11 Background color processing means 12 Erasure Processing means 13 Icon 14 Notification screen

Claims (11)

[Claims] 1. A plant monitoring and control device that displays process data from a plant on a monitoring screen of a display device and performs monitoring and control of the plant through the monitoring screen, based on process data sequentially input from the plant. Automatic monitoring means for automatically selecting a monitoring screen corresponding to the set plant state and outputting a display request; and monitoring to be displayed on the display device when a request for displaying the monitoring screen is duplicated from the automatic monitoring means. A plant monitoring control device comprising: an automatic monitoring screen management device for managing a screen. 2. The automatic monitoring screen management device according to claim 1, wherein said automatic monitoring screen management device includes a screen information database storing screen information of a monitoring screen prepared in advance, and a display device based on a priority of the monitoring screen requested to be displayed by said automatic monitoring means. A control unit that switches display of a monitoring screen to a display screen or waits for display; a screen number storage unit that stores the number of monitoring screens that are waiting to be displayed on the display device among the monitoring screens requested to be displayed; The plant monitoring control device according to claim 1, further comprising: a screen information storage unit that extracts screen information of the monitoring screen from the screen information database and stores the screen information. 3. The control unit determines a priority of a monitoring screen requested to be displayed by the automatic monitoring unit based on the screen information database, and displays the monitoring screen on the display device when the priority is high. Control processing means for performing switching and waiting for display when the priority is low, and background color processing means for determining a background color of a monitoring screen displayed on the display device based on the number of screens stored in the screen number storage unit Erasing processing means for erasing screen information of the monitoring screen waiting for display stored in the screen information storage unit based on erasing conditions of the monitoring screen waiting for display, and displaying the monitoring screen waiting for display by an operator 3. The plant monitoring control device according to claim 2, further comprising: a screen display processing unit that displays a monitoring screen waiting to be displayed on the display device when requested. 4. The deletion processing unit according to claim 1, wherein the screen information of the monitoring screen waiting for display stored in the screen information storage unit is deleted based on an elapsed time from a display request as an erasing condition of the monitoring screen waiting for display. The plant monitoring and control device according to claim 3, wherein: 5. The control processing unit according to claim 3, wherein a waiting information area indicating that the display waiting monitoring screen is present is displayed on the monitoring screen being displayed on the display device. A plant monitoring and control device according to item 1. 6. The control processing means according to claim 5, wherein said control processing means displays said waiting information area at any one of four corners on a monitoring screen being displayed on said display device. Plant monitoring and control equipment. 7. The plant monitoring and control apparatus according to claim 5, wherein the control processing means blinks the waiting information area. 8. The plant monitoring control apparatus according to claim 5, wherein said control processing means displays the number of monitoring screens waiting to be displayed in said waiting information area. 9. The erasure processing means, when erasing the screen information of the monitoring screen awaiting display, updates the display so that the display of the wait information area matches the erased state. The plant monitoring and control device according to claim 5, wherein 10. The screen display processing means displays a monitor screen waiting for display on a display device, and when the monitor screen waiting for display decreases, updates the display so that the display of the wait information area matches the state. The plant monitoring and control device according to claim 5, wherein the control is performed. 11. The screen display processing means, when an operator requests display of the monitoring screen waiting for display,
The plant monitoring control device according to claim 3, wherein the display is started from the newest monitoring screen among the monitoring screens waiting to be displayed.