JP6906453B2 - Plant monitoring controller - Google Patents

Description

The present invention relates to a plant monitoring control device that displays the status and measured values of plant equipment such as a water treatment facility and a sewage treatment facility.

Generally, in a plant monitoring and control device, screen information such as plant status charts, trend graphs, and forms are stored in independent sheets, and expansion operations to different screens can be performed by selecting the screen from the menu bar. It is also done by clicking on the parts.
The plant monitoring and control device acquires the status of the plant equipment, and when an abnormality occurs, outputs an alarm on the screen to notify the operator that the abnormality has occurred. When an alarm is generated, the operator expands the screen to the screen of the place where the abnormality has occurred and takes measures against the abnormality.
At this time, there is a problem that it is difficult for an operator who is unfamiliar with the operation to handle the system, such as it takes time to search for the screen to be viewed from the menu bar or the wrong screen is displayed.
Therefore, the display screen file that saves the data of multiple screens to be displayed on the monitor and the screen relevance definition file that defines the relationship between the screen data are saved, and the screen can be enlarged from the whole to the details. Some were developed (see Patent Document 1).

Japanese Patent No. 4943468

In Patent Document 1, it is possible to find the desired screen from the entire screen of the system by performing the enlargement / reduction operation. However, in Patent Document 1, when the screen is expanded on the related screen, it is necessary to reduce the screen once, expand the screen to the entire screen, and then expand the desired portion to expand the screen. Therefore, it is necessary to perform the screen expansion operation a plurality of times. That is, it is not possible to expand to the related screen by one screen expansion operation.

The present invention has been made to solve the above problems, and provides a plant monitoring control device that can reduce the time required to search for the screen to be viewed from the menu and is easy to handle even for an unfamiliar operator. The purpose is to do.

Plant monitoring control system according to the present invention, possess a display device for displaying the status of the plant, and the screen processing unit for processing picture data, the definition file-related information is saved between screens, associated screen It can be expanded to
The screen processing unit includes a screen management unit that exchanges data with the display device and generates screen data, a display screen data area that stores screen data currently displayed on the display device, and a display screen data area. It has a buffer area in which related screen data related to the screen currently displayed on the display device is stored.
The screen management unit creates related screen data related to the currently displayed screen by referring to the definition file and saves it in the buffer area in case there is a screen expansion operation.
Further, when the screen expansion operation is performed, the screen management unit moves the currently displayed screen data stored in the display screen data area to the buffer area and transfers the related screen data related thereto to the buffer. The related screen data searched from the area is stored in the display screen data area, and the related screen data is displayed on the display device.

According to the plant monitoring control device configured as described above, it is possible to eliminate the trouble of searching for a screen from the menu and expand to the related screen with only one operation. Also, by following the related screens, the number of operations until the screen to be displayed is displayed can be reduced. From the above, it is possible to expand the screen more efficiently than before, and it is possible to obtain an effect that even an operator who is unfamiliar with system operation can easily perform the work.

It is a block block diagram which shows the plant monitoring control apparatus by Embodiment 1. FIG. FIG. 5 is a screen-related diagram of the plant monitoring and control device according to the first embodiment. It is a figure which shows an example of the system whole system monitoring graphic screen in the plant monitoring control apparatus by Embodiment 1. FIG. It is a figure which shows an example of the whole plant monitoring graphic screen in the plant monitoring control apparatus by Embodiment 1. FIG. It is a figure which shows an example of the network monitoring screen in the plant monitoring control apparatus by Embodiment 1. FIG. It is a figure which shows an example of the equipment monitoring screen in the plant monitoring control apparatus by Embodiment 1. FIG. It is a figure which shows an example of the pump room monitoring graphic screen in the plant monitoring control apparatus by Embodiment 1. FIG. It is a figure which shows an example of the pump room trend graph screen in the plant monitoring control apparatus by Embodiment 1. FIG. It is a figure which shows an example of the sedimentation pond filtration pond monitoring graphic screen in the plant monitoring control apparatus by Embodiment 1. FIG. It is a figure which shows an example of the sedimentation pond water level meter trend graph screen in the plant monitoring control apparatus by Embodiment 1. FIG. It is a figure which shows an example of the filter pond water level meter trend graph screen in the plant monitoring control apparatus by Embodiment 1. FIG. It is a block diagram which shows an example of the definition file in the plant monitoring control apparatus by Embodiment 1. FIG. It is a flowchart which shows the operation at the time of starting of the plant monitoring control apparatus by Embodiment 1. It is a flowchart which shows the operation at the time of the screen expansion operation of the plant monitoring control apparatus by Embodiment 1. FIG. It is a figure which shows the screen display part in the plant monitoring control apparatus by Embodiment 2. FIG. It is a flowchart which shows the operation of the plant monitoring control apparatus by Embodiment 3. FIG. It is an overall view which shows the outline of the screen development in the plant monitoring control apparatus by Embodiment 3. FIG. It is an overall view which shows the outline of the screen development in the plant monitoring control apparatus by Embodiment 3. FIG. It is an overall view which shows the outline of the screen development in the plant monitoring control apparatus by Embodiment 3. FIG. It is a flowchart which shows the operation of the plant monitoring control apparatus according to Embodiment 4. It is an overall view which shows the outline of the screen development in the plant monitoring control apparatus according to Embodiment 4. It is an overall view which shows the outline of the screen development in the plant monitoring control apparatus according to Embodiment 4. It is an overall view which shows the outline of the screen development in the plant monitoring control apparatus according to Embodiment 4. It is a figure which shows the display device in the plant monitoring control apparatus according to Embodiment 5. It is a figure which shows the display device in the plant monitoring control apparatus according to Embodiment 5. It is a flowchart which shows the operation of the plant monitoring control apparatus according to Embodiment 6. It is an overall view which shows the outline of the screen development in the plant monitoring control apparatus according to Embodiment 6. It is an overall view which shows the outline of the screen development in the plant monitoring control apparatus according to Embodiment 6. It is an overall view which shows the outline of the screen development in the plant monitoring control apparatus according to Embodiment 6. FIG. 5 is a diagram showing a state in which a system-wide monitoring graphic screen and a plant-wide monitoring graphic screen are displayed in half screens in the plant monitoring control device according to the sixth embodiment. It is a figure which shows the state which the whole plant monitoring graphic screen and the pump room monitoring graphic screen are displayed half screen each in the plant monitoring control apparatus according to Embodiment 6.

Embodiment 1.
The present embodiment relates to a plant monitoring and control device for displaying a plant status diagram, a trend graph, a form, etc. in a plant monitoring and control system such as a water treatment facility and a sewage treatment facility, and monitoring and controlling the operation of the plant equipment. It relates to a plant monitoring and control device that can be easily expanded to related screens.
Hereinafter, Embodiment 1 of the present invention will be described with reference to the drawings.
FIG. 1 is a block configuration diagram showing a plant monitoring and control device, which performs water treatment. In FIG. 1, the plant monitoring and control device 1 includes a display device 2 for displaying the state of the plant, an input device 3 for operating the plant monitoring and control device 1, and a processing device for processing data and screens. The plant monitoring and control device 1 is connected to an external device 10 composed of a plant or the like via a network 9.

The display device 2 in the plant monitoring control device 1 has a screen display unit 21, and the screen display unit 21 has a menu for selecting functions such as an alarm display unit 22 for displaying the alarm status of the plant and screen expansion. It has a menu display unit 23 for displaying the above, and a window display unit 24 for displaying the state of the plant and numerical values.
The input device 3 in the plant monitoring and control device 1 has a mouse 31, a keyboard 32, and a touch panel 33.
The processing device 4 in the plant monitoring control device 1 is defined as a screen processing unit 5 that processes screen data, a data input / output unit 6 that inputs / outputs data to / from an external device 10, and a definition that describes information related to screen data. It has an event processing unit 8 that receives an event from the file 7 and the input device 3.

The screen processing unit 5 exchanges data with the display device 2 and generates screen data, a screen management unit 51, a display screen data area 52 for storing currently displayed screen data, and related screens. It has a buffer area 53 for storing screen data. The display screen data area 52 stores screen data 54, 55, and 56 related to the alarm unit, menu unit, and window unit currently displayed on the screen. The buffer area 53 stores related screen data 57 related to the screen currently displayed on the window display unit 24.
The screen data 54 to 57 are generated by the screen management unit 51 by acquiring the value of the external device 10 via the data input / output unit 6.
The related information between the screens is stored in the definition file 7, and each time the screen is expanded, the screen management unit 51 creates the related screen data 57 to be stored in the buffer area 53 by referring to the related information in the definition file 7. do.
The event input information from each input device 3 is processed by the event processing unit 8, the screen management unit 51 performs processing corresponding to the requested operation, and the processing result is output to the display device 2.

Next, the operation of screen development will be described with reference to the screen-related diagram of FIG. FIG. 2 shows an example of a screen-related diagram by the plant monitoring and control device 1 that performs water treatment. The screens in this system include a system-wide monitoring graphic screen 100 that displays the overall system configuration, a plant-wide monitoring graphic screen 110 that displays the layout of the entire plant, and a network monitoring screen 111 that displays the system network configuration. The equipment monitoring screen 112 that displays the operating status of each equipment installed in the plant, the pump room monitoring graphic screen 120 that displays the layout of the pump room, and the pump room that displays the values measured in the pump room on a trend graph. The trend graph screen 121, the sedimentation pond filter pond monitoring graphic screen 130 displaying the arrangement of the sedimentation pond filtration pond, the sedimentation pond water level gauge trend graph screen 131 displaying the value of the water level gauge of the sedimentation pond in a trend graph, and the filtration pond. The filter pond water level gauge trend graph screen 132, which displays the value of the water level gauge in the above, is composed of a total of nine screens, and these nine screens are associated with the plant monitoring control device 1.

FIG. 3 is a diagram showing an example of the system-wide monitoring graphic screen 100, and FIG. 3 shows a case where an abnormality occurs in the slave station. The child station is a part that collects information from the pump room and the like. FIG. 4 is a diagram showing an example of a plant-wide monitoring graphic screen 110, FIG. 5 is a diagram showing an example of a network monitoring screen 111, and FIG. 6 is a diagram showing an example of an equipment monitoring screen 112. Indicates that some lines between the plant and the slave station have failed. FIG. 7 is a diagram showing an example of the pump chamber monitoring graphic screen 120, FIG. 8 is a diagram showing an example of the pump chamber trend graph screen 121, and FIG. 9 is a diagram showing an example of the sedimentation pond filtration pond monitoring graphic screen 130. FIG. 10 is a diagram showing an example of a sedimentation pond water level gauge trend graph screen 131, and FIG. 11 is a diagram showing an example of a filtration pond water level gauge trend graph screen 132.

Next, an operation when an abnormality occurs in the pump chamber and the pump chamber monitoring graphic screen 120 is displayed while the display device 2 is activated and the entire system monitoring graphic screen 100 is displayed will be described. When the screen expansion operation to the right (right arrow key operation, etc.) is performed by the input device 3 while the display device 2 is displaying the entire system monitoring graphic screen 100, the screen is expanded on the entire plant monitoring graphic screen 110. .. Here, the operation by the input device 3 corresponds to a scroll operation on the mouse 31, an arrow key operation on the keyboard 32, and a swipe operation on the touch panel 33. Next, in the state where the entire plant monitoring graphic screen 110 is displayed, since there are related screens on the top, bottom, left, and right, the screen can be expanded in four directions. By performing a screen expansion operation in the right direction (right arrow key operation, etc.), the screen can be expanded on the pump room monitoring graphic screen 120.
In addition, when the sedimentation pond filtration pond monitoring graphic screen 130 is displayed, if the screen expansion operation is performed to the right, the association between screens such as a circulation list that can be expanded to the entire system monitoring graphic screen 100 is also defined. It is possible in file 7. Similarly, a cyclic association in the vertical direction is also possible in the definition file 7.

FIG. 12 is a configuration diagram showing an example of the definition file 7. In FIG. 12, the sheet number NO is described in the first column. In the second column, the related sheet numbers are separated by commas, and the relationships are listed in the order of top, bottom, right, and left. However, if there is no destination, x is displayed. Each sheet name is described in the third column. For example, sheet number 1 corresponds to the entire system monitoring graphic screen 100, sheet number 2 corresponds to the entire plant monitoring graphic screen 110, sheet number 3 corresponds to the network monitoring screen 111, and sheet number 4 corresponds to sheet number 4. Corresponds to the equipment monitoring screen 112, sheet number 5 corresponds to the pump room monitoring graphic screen 120, sheet number 6 corresponds to the pump room trend graph screen 121, and sheet number 7 corresponds to sedimentation pond filtration. The pond monitoring graphic screen 130 corresponds, the sheet number 8 corresponds to the filtration pond water level gauge trend graph screen 132, and the sheet number 9 corresponds to the sedimentation pond water level gauge trend graph screen 131.

Next, the operation in the device at the time of starting the plant monitoring control device 1 and at the time of the screen expansion operation will be described. FIG. 13 is a flowchart showing the operation at the time of starting the plant monitoring control device 1, and FIG. 14 is a flowchart showing the operation at the time of the screen expansion operation. In FIG. 13, the entire system monitoring graphic screen 100 is displayed after the plant monitoring control device 1 is started, and the entire plant monitoring graphic screen 110, which is a related screen of the displayed overall system monitoring graphic screen 100, is stored in the buffer area 53. It shows the operation until it is done. In FIG. 13, when the plant monitoring control device 1 is first activated, the screen management unit 51 collects the data necessary for creating the data of the system-wide monitoring graphic screen 100 via the data input / output unit 6 (step S1). The screen management unit 51 creates the entire system monitoring graphic screen 100 (step S2). The created data of the system-wide monitoring graphic screen 100 is stored in the display screen data area 52 (step S3), the created data (system-wide monitoring graphic screen 100) is sent to the display device 2, and the screen display unit 21 Is displayed in (step S4). When the display is completed, referring to the definition file 7 shown in FIG. 12, the screen management unit 51 displays the data of the plant-wide monitoring graphic screen 110 related to the created screen (system-wide monitoring graphic screen 100), and the sedimentation pond filtration. When the data of the pond monitoring graphic screen 130 is created (step S5), the created data which is the related screen data for the displayed screen is saved in the buffer area 53 (step S6), and there is a screen expansion operation. Make it possible to expand the screen immediately.

Here, the screen data means the data necessary for displaying the target screen. For example, in the case of the sedimentation pond filtration pond monitoring graphic screen 130, data such as the water level and concentration of the sedimentation pond or the filtration site output on the screen, and symbol data for graphic display are applicable.
FIG. 14 shows an operation when the screen is expanded to the right while the entire system monitoring graphic screen 100 is displayed. First, when the screen expansion operation to the right is performed, the screen management unit 51 moves the data of the entire system monitoring graphic screen 100 stored in the display screen data area 52 to the buffer area 53 (step S11). Next, the data of the entire plant monitoring graphic screen 110 associated in the right direction is searched from the buffer area 53 (step S12). The data of the entire plant monitoring graphic screen 110 found by the search is stored in the display screen data area 52 (step S13), the created data of the entire plant monitoring graphic screen 110 is sent to the display device 2, and the screen display unit. It is displayed on 21 (step S14). When the display is completed, the data of the pump room monitoring graphic screen 120, the data of the network monitoring screen 111, and the data of the equipment monitoring screen 112 related to the created plant-wide monitoring graphic screen 110 are created by referring to the definition file 7 (. Step S15). Finally, the data of the related screen related to the displayed screen (plant-wide monitoring graphic screen 110) is stored in the buffer area 53 (step S16), and when there is a screen expansion operation, the screen can be expanded immediately. .. Then, the data of the sedimentation pond filtration pond monitoring graphic screen 130, which is not the related screen of the plant-wide monitoring graphic screen 110 created previously, is deleted from the buffer area 53.

As described above, according to the first embodiment, there is an effect that the target screen can be expanded with a small number of operations. Further, as shown in FIG. 2, it is possible to create a rule such that a trend graph is displayed by expanding the screen upward. This makes it easier to understand the relationship between the screens, and has the effect of making it easier to handle the plant monitoring control device 1.

Embodiment 2.
In the plant monitoring control device shown in the first embodiment, since the screen can be easily expanded by using scrolls and arrow keys, it is not always necessary to display the menu display unit 23. The present embodiment relates to a plant monitoring control device having a function of hiding the menu display unit 23.
In the first embodiment, a method of creating screen data related to the currently displayed screen in advance, storing the screen data in the buffer area 53, and easily expanding the screen has been described. However, in the present embodiment, the screen data can be easily expanded. A function is provided to hide the menu display unit 23 from within the screen display unit 21.

FIG. 15 is a diagram showing a screen display unit according to the second embodiment, the screen of FIG. 15A is a screen of a menu display mode, and the screen of FIG. 15B is a screen of a menu non-display mode. In FIG. 15, a minimize button 25 is provided as a part of the menu display unit 23. Switching from the menu display mode (FIG. 15 (A)) to the menu non-display mode (FIG. 15 (B)) is performed by pressing the minimize button 25 in the menu display unit 23, and from the menu non-display mode. Switching to the menu display mode is performed by pressing the minimized menu display unit 23.
As described above, according to the second embodiment, by hiding the menu display unit 23, the window display unit 24 can be displayed in a large size, which has the effect of making the screen easier to see.

Embodiment 3.
In the first embodiment, the case where there is one display device 2 has been described, but in the present embodiment, the present invention relates to a plant monitoring control device including a plurality of display devices. Then, in the present embodiment, the screen can be expanded on a plurality of display devices 2 by one screen expansion operation.
FIG. 16 shows from the state where the entire system monitoring graphic screen 100 and the entire plant monitoring graphic screen 110 are displayed to the display of the pump room monitoring graphic screen 120 and the sedimentation pond filtration pond monitoring graphic screen 130 on the two display devices. It is a flowchart which shows the operation, and FIGS. 17 to 19 are the whole views which show the outline of the screen development.

In the example shown in FIGS. 17 to 19, the pump chamber and sedimentation occur when the entire system monitoring graphic screen 100 and the entire plant monitoring graphic screen 110 are displayed in the plant monitoring control device 1 provided with the two display devices 2. The procedure of the screen expansion operation when an abnormality occurs in the pond filtration ground and displays the pump room monitoring graphic screen 120 and the sedimentation pond filtration pond monitoring graphic screen 130 is shown. The screen shown by the diagonal lines is the screen actually displayed on the display device 2. In FIG. 16, the screen expansion operation to the right is performed while the system-wide monitoring graphic screen 100 and the plant-wide monitoring graphic screen 110 are displayed (step S21) (step S22). As a result, the state of FIG. 17 shifts to the state of FIG. 18, and the entire plant monitoring graphic screen 110 and the pump room monitoring graphic screen 120 are displayed (step S23). Further, when the screen expansion operation to the right side is performed (step S24), the state of FIG. 18 shifts to the state of FIG. 19, and the pump chamber monitoring graphic screen 120 and the sedimentation pond filtration pond monitoring graphic screen 130 can be displayed (step S24). Step S25). In this way, the target screen can be displayed by performing the screen expansion operation twice.

As described above, according to the third embodiment, by using a plurality of screens, it is possible to display related screens side by side, and there is an effect that it becomes easy to compare and refer to the plurality of screens. In addition, it is possible to expand multiple screens with a small number of operations, which has the effect of enabling efficient work.

Embodiment 4.
In the first embodiment, the case where the display device 2 is one is described, but in the present embodiment, in the plant monitoring control device provided with a plurality of display devices, the related information in the definition file 7 is not adjacent to each other. However, a plant monitoring control device that can expand screens among a plurality of display devices by performing a screen expansion operation at one time will be described. FIG. 20 shows the sedimentation pond filtration pond monitoring graphic screen 130 and the sedimentation pond water level gauge trend graph screen 131 from the state where the pump chamber monitoring graphic screen 120 and the sedimentation pond filtration pond monitoring graphic screen 130 are displayed on the two display devices. It is a flowchart which shows the operation until the display, and FIGS. 21 to 23 are the whole view which shows the outline of the screen development.

In the example shown in FIGS. 21 to 23, when the pump room monitoring graphic screen 120 and the sedimentation pond filtration pond monitoring graphic screen 130 are displayed in the plant monitoring control device 1 provided with the two display devices 2, the sedimentation pond is displayed. The procedure of the screen expansion operation at the time of displaying the sedimentation pond filtration pond monitoring graphic screen 130 and the sedimentation pond water level gauge trend graph screen 131 is shown. The screen shown by the diagonal lines is the screen actually displayed on the display device 2. First, when the pump chamber monitoring graphic screen 120 and the sedimentation pond filtration pond monitoring graphic screen 130 are displayed (step S31), the screen expansion operation is performed upward on the sedimentation pond filtration pond monitoring graphic screen 130 (step). S32), the state of FIG. 21 shifts to the state of FIG. 22, and the pump chamber monitoring graphic screen 120 and the sedimentation pond water level gauge trend graph screen 131 are displayed (step S33). That is, in this state, two screens that are not associated with each other in the definition file 7 are displayed on the display device 2. Further, when the screen expansion operation to the right side is performed on the pump room monitoring graphic screen 120 (step S34), the state shifts from the state of FIG. 22 to the state of FIG. 23, and the sedimentation pond filtration pond monitoring graphic screen 140 and the sedimentation pond water level gauge trend graph. The screen 131 can be displayed (step S35). In this way, the target screen can be displayed by performing the screen expansion operation twice. In the present embodiment, unlike the third embodiment, one screen display does not change in the two display devices, and only one screen display changes.

As described above, according to the fourth embodiment, by using a plurality of screens, it is possible to display related screens side by side, and even if the related information is not adjacent to each other in the definition file 7, the plurality of screens can be displayed side by side. It has the effect of making it easier to compare and refer to.

Embodiment 5.
In the first embodiment, a method has been described in which screen data related to the currently displayed screen is created in advance and stored in the buffer area 53 so that the screen can be easily expanded. In the present embodiment, a plant monitoring control device provided in the display device 2 with a bird's-eye view display function for knowing what kind of relationship the screen data has will be described. 24 and 25 are views showing the display device according to the fifth embodiment, FIG. 24 shows a state in which the bird's-eye view position display unit is reduced, and FIG. 25 shows a state in which the bird's-eye view position display unit is enlarged. Shown. As shown in FIG. 24, a bird's-eye view position display unit 26 is created in the lower right of the window display unit 24 to display which screen the current screen is related to. That is, the bird's-eye view position display unit 26 displays so that the positional relationship between the screens can be understood. Further, the bird's-eye view position display unit 26 can be enlarged / reduced by a drag operation, and as shown in FIG. 25, it can be displayed so as to cover the entire window display unit 24. In FIGS. 24 and 25, the state in which the entire plant monitoring graphic screen 110 is displayed is shown, and the displayed screen is surrounded by a thick line.

As described above, according to the fifth embodiment, the screen can be displayed from a bird's-eye view. That is, by providing the bird's-eye view position display unit 26 that displays the screen layout relationship from a bird's-eye view, the relationship between the current screen display position and the related screen can be grasped, and screen development can be realized more easily. Therefore, when searching for a related screen, it is possible to search without actually expanding the screen, which has the effect of reducing the time required to reach the target screen. Further, for an operator who is unfamiliar with the operation of the plant monitoring control device 1, it is possible to operate while observing the relationship between the screens, so that the positional relationship between the screen to be displayed and the current display screen can be easily grasped. This has the effect of making the device easier to handle.

Embodiment 6.
In the first embodiment, the screen data related to the currently displayed screen is created in advance, stored in the buffer area 53, and the screen can be easily expanded. However, the present embodiment has been described. The present invention relates to a plant monitoring control device capable of operating a plurality of sheets (screens) as if they were one sheet (screen).
FIG. 26 is a flowchart showing the operation according to the present embodiment, and FIGS. 27 to 29 are image diagrams showing a state of screen development. The screen shown by the diagonal lines is the screen actually displayed on the display device 2. First, when the device is started, the plant monitoring control device 1 reads the definition file 7 that defines the relationship between the screens (step S41). Next, in the same manner as in the first embodiment, a display screen is created, the entire system monitoring graphic screen 100 is created as shown in FIG. 27, and the screen is output to the screen display unit 21 (step S42) to display the entire system monitoring graphic. The screen data of the entire plant monitoring graphic screen 110 related to the screen 100 is created and stored in the buffer area 53 (step S43).

Next, when the screen expansion operation for a half screen is performed to the right (step S44), the screen expansion operation is performed, and as shown in FIG. 28, the entire system monitoring graphic screen 100 and the entire plant monitoring graphic screen 110 are displayed. A half screen is output to the display unit 21 (step S45). FIG. 30 is a diagram showing a state in which the system-wide monitoring graphic screen 100 and the plant-wide monitoring graphic screen 110 are displayed half-screen each. Next, screen data of the network monitoring screen 111, the equipment monitoring screen 112, and the pump room monitoring graphic screen 120 related to the entire plant monitoring graphic screen 110 are created and stored in the buffer area 53 (step S46).

Further, when the screen expansion operation for one screen is performed to the right (step S47), the screen expansion operation is performed, and as shown in FIG. 29, the entire plant monitoring graphic screen 110 and the pump room monitoring graphic screen 120 are half-screened. The amount is output to the screen display unit 21 (step S48). FIG. 31 is a diagram showing a state in which the entire plant monitoring graphic screen 110 and the pump room monitoring graphic screen 120 are displayed half screens at a time. Then, the screen data of the pump room trend graph screen 121 and the sedimentation pond filtration pond monitoring graphic screen 130 related to the pump room monitoring graphic screen 120 are created and stored in the buffer area 53 (step S49). Further, since the screen data of the hidden system-wide monitoring graphic screen 100 is a related screen of the plant-wide monitoring graphic screen 110, it is stored in the buffer area 53.

As described above, according to the sixth embodiment, the screen can be created without being aware of the boundary of the sheet (screen) and the development of the screen. Therefore, it is possible to operate a plurality of sheets (screens) as if they were one sheet (screen), and it is possible to display across the plurality of sheets (screens). Therefore, the plant monitoring control device 1 can be operated while grasping the relationship between the screens, which has an effect of facilitating the operation even for an operator who is unfamiliar with the operation.
In the present invention, each embodiment can be freely combined, and each embodiment can be appropriately modified or omitted within the scope of the invention.

1 Plant monitoring and control device, 2 Display device, 5 Screen processing unit, 7 Definition file,
23 Menu display unit, 26 Bird's-eye view position display unit, 51 Screen management unit,
52 display screen data area, 53 buffer area.

Claims (6)

A display device for displaying the status of the plant, and the screen processing unit for processing picture data, have a definition file that relevant information is stored between screens, the plant that can be deployed to the associated display monitoring controller And
The screen processing unit includes a screen management unit that exchanges data with the display device and generates screen data, a display screen data area that stores screen data currently displayed on the display device, and a display screen data area. It has a buffer area in which related screen data related to the screen currently displayed on the display device is stored.
The screen management unit creates related screen data related to the currently displayed screen by referring to the definition file and saves it in the buffer area in case there is a screen expansion operation.
Further, when the screen expansion operation is performed, the screen management unit moves the currently displayed screen data stored in the display screen data area to the buffer area and transfers the related screen data related thereto to the buffer. A plant monitoring and control device that searches from an area, stores the searched related screen data in the display screen data area, and displays the related screen data on the display device. The plant monitoring control device according to claim 1, wherein the display device is provided with a menu display unit for displaying a menu for selecting a screen expansion function, and is provided with a function for hiding the menu display unit. The plant monitoring control device according to claim 1 or 2, wherein the display device is provided with a bird's-eye view position display unit that displays the positional relationship between screens so as to be understood. The plant monitoring control device according to any one of claims 1 to 3, wherein a plurality of the display devices are provided and screens can be expanded on the plurality of display devices by one screen expansion operation. The plant monitoring control device according to claim 4, wherein a plurality of the display devices are provided, and the screen can be expanded only on one display device in the plurality of display devices by one screen expansion operation. The plant monitoring control device according to any one of claims 1 to 3, wherein the display can be displayed over a plurality of screens on the same display device.

Images