JP2001067574A - Plant monitoring system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily identify a monitoring point where warning is given on a screen and to narrow a monitoring place to a narrow range from the wide range when abnormality occurs in plant facility by installing a display change means changing a display state on the map screen of the monitoring point where the warning occurs when the warning occurs in the monitoring point. SOLUTION: When a monitoring point on a map screen is clicked by a mouse, the screen is switched to a photographing picture of a camera installed in the monitoring point. The picture is the monitoring picture. The monitoring points 41 to 48 are displayed on the monitoring picture G2 in a way similar to the map screen. When abnormality occurs in the monitoring point 46 on the monitoring picture G2, display form of the monitoring point 46 on the monitoring picture is changed. When the monitoring point on the monitoring picture is clicked by the mouse, the picture is switched to the monitoring picture of the clicked monitoring point. Thus, the monitoring point and the monitoring picture are developed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plant monitoring system for monitoring an operation state of plant equipment.

[0002]

2. Description of the Related Art In some plant equipment, a camera is installed at a monitoring point in order to ensure safe plant operation and monitors whether an abnormality has occurred in the plant. When you discover a plant anomaly,
The operator takes appropriate measures such as shutting down the plant according to the type of abnormality. Further, at the start-up of the plant, the operator visually monitors whether each device is operating properly.

In order to operate plants more safely,
Plant monitoring systems are being improved daily. However, the conventional plant monitoring system has the following problems. A large number of plant facilities may be arranged in a vast plant factory, and monitoring points may be scattered in the plant factory. In such a case, it is not easy to know where the monitoring point is located in the plant factory. When an abnormality has occurred in a plant facility, it has been difficult to narrow down which plant facility in the plant factory has failed and in which part of the plant facility the abnormality has occurred. When an abnormality occurs in the plant equipment, it is necessary to perform a reproduction test for reproducing the abnormal state using the actual equipment of the plant equipment. The cause of the abnormality is determined by reproducing the abnormal state. However, a large amount of expense is required to perform the reproduction test.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and a map screen showing monitoring points is displayed on an equipment map of a plant, and monitoring is performed on this map screen. When a point is selected, the monitoring screen of the selected monitoring point is displayed. When a monitoring point is selected on this monitoring screen, the monitoring screen of the selected monitoring point is further displayed, so that the monitoring screen of the selected monitoring point is further displayed. The purpose of this is to realize a plant monitoring system that can easily grasp the position of the monitoring point of the plant by going along and, when an abnormality occurs in the plant equipment, narrow down the abnormal point from a wide range to a narrow range. And

[0005]

SUMMARY OF THE INVENTION The present invention is a plant monitoring system having the following configuration.

(1) Display means for displaying a map screen showing monitoring points on a plant facility map, a camera installed at an actual monitoring point and taking an image of the plant at the monitoring point, and an image of the camera Digitizing means for digitizing a signal, image memory for storing digitized image data, selecting means for selecting a monitoring point on the map screen, identifying the monitoring point selected on the map screen, and identifying Image reading means for reading out image data obtained from a camera installed at the monitoring point set out from the image memory, and displaying a monitoring screen based on the read out image data.

(2) The plant monitoring system according to (1), further comprising a display changing means for changing a display state of the monitoring point at which the alarm is generated on the map screen when an alarm is generated at the monitoring point. .

(3) A monitoring point is displayed on the monitoring screen called by the image calling means. When a monitoring point is selected by the selecting means on the monitoring screen, the image calling means monitors the monitoring point. The plant monitoring system according to (1), wherein the monitoring points and the monitoring screen are expanded so that the screen is further displayed.

(4) Data collecting means for collecting the process value data existing in the plant, a process value data memory for storing the collected process value data, and a photographed image of the monitoring point and the process value data on the monitor screen at the same time. And a display control means for displaying. The plant monitoring system according to (1) or (3).

(5) The plant monitoring system according to (1), wherein the camera is installed at a place where an operation target to be remotely operated is photographed, and an operation state of the operation target is displayed on a monitoring screen.

(6) Data collecting means for collecting process value data to be referred to when monitoring the operation state of the operation target, a process value data memory for storing the collected process value data, and a window on the monitor screen And a display control means for displaying a photographed image of the operation target in another window and displaying the process value data collected by the data collecting means in another window.

(7) Data collecting means for collecting data related to the operation of the operation target, a process value data memory for storing the collected data, and a photographed image of the operation target displayed in a window on a monitor screen. Display control means for displaying the operation state of the operation target in another window in a logic diagram, and changing the display state of the logic diagram based on the data collected by the data collection means. The plant monitoring system according to (1).

(8) When the instant image recording button displayed on the monitoring screen and the instant image recording button are operated, the instant image data for one screen obtained from the camera at the selected monitoring point is instantaneously displayed. The plant monitoring system according to (1), further comprising: a memory control unit that records the image in the image memory, wherein the image calling unit calls the instantaneous image recorded in the instantaneous image memory and displays the instantaneous image on the monitoring screen.

(9) Display means for displaying a map screen showing monitoring points on a plant facility map, a camera installed at an actual monitoring point and taking an image of the plant at the monitoring point, and an image of the camera Digitizing means for digitizing a signal, selecting means for selecting a monitoring point on the map screen, an instant image recording button displayed on the monitoring screen, and when the instant image recording button is operated, the selected Memory control means for recording the instantaneous image data for one screen obtained from the camera at the monitoring point in the instantaneous image memory; and image calling means for calling out the instantaneous image recorded in the instantaneous image memory and displaying it on the monitoring screen. A plant monitoring system comprising:

(10) A recording start button, a recording stop button, and a pause button displayed on the monitoring screen, and image data obtained from a camera at a selected monitoring point when the recording start button is operated, is stored in an image memory. (1) a memory control means for starting an operation of recording to a memory, stopping recording when a recording stop button is operated, and temporarily stopping recording when a pause button is operated. Plant monitoring system.

(11) An automatic recording button displayed on the monitoring screen for setting and canceling the automatic recording function, and when the automatic recording function is set, the image is obtained from the camera at the selected monitoring point. (1) The plant monitoring system according to (1), further comprising: memory control means for starting and stopping the operation of recording the image data in the image memory in response to a time or an external trigger.

(12) User name, authority only to view the image of the monitoring point, authority to change the monitoring point, and authority to change the assignment of the image to the monitoring screen When a user name is input and a correspondence table memory storing a correspondence table corresponding to at least one of the above, the authority corresponding to the user name is read from the correspondence table memory, and the operation is performed within the read authority range. The plant monitoring system according to (1), further comprising: security means for limiting.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the drawings. FIG. 1 is a configuration diagram showing one embodiment of the present invention. In FIG. 1, the display means 10 displays a map screen showing monitoring points on a plant equipment map. In the example of the figure, the display means 10 displays an equipment map in which the plant equipments 11A and 11B are arranged. Monitoring points 12A to 12D are shown on the equipment map. The display means 10 displays not only a map screen but also a screen necessary for monitoring a plant.

The camera 13 is installed at an actual monitoring point and captures an image of the plant at the monitoring point. The A / D converter 14 digitizes the image signal of the camera 13. The digitizing means in the claims is the A / D converter 14. The image memory 15 stores digitized image data. The selection means 16 selects a monitoring point on the map screen. The selection means 16 is, for example, a mouse, a keyboard, or the like. The image calling means 17 identifies a monitoring point selected on the map screen, reads out image data obtained from a camera installed at the identified monitoring point from the image memory 15, and displays the monitoring screen based on the read image data. I do.

The display changing means 18 changes the display state on the map screen of the monitoring point at which the alarm has occurred when the alarm has occurred at the monitoring point. The warning signal includes
Information indicating the monitoring point at which the alarm occurred is included. The data collecting means 19 collects process value data existing in the plant. Process value data memory 20
Stores the collected process value data. The display control means 21 controls display on the display means 10. The display control means 21 may simultaneously display the captured image of the monitoring point and the process value data on the monitoring screen according to the screen setting.

The operation of the plant monitoring system shown in FIG. 1 will be described. FIG. 2 is a diagram showing an example of the map screen. FIG.
On the map screen G1, a facility map showing the arrangement of plant facilities is displayed. The equipment map includes 8 from one building
The factory building is shown up to the building, and plant equipment is located in the factory building. Monitoring points 31 to 34 are shown in the equipment map. Cameras are installed at the actual positions of the monitoring points 31 to 34.

On the map screen G1 shown in FIG.
When an abnormality occurs in 2, the display mode of the monitoring point 32 on the map screen changes. For example, when no abnormality occurs, the display colors of the monitoring points 31 to 34 are green, and when an abnormality occurs at the monitoring point 32,
Only the display color of the monitoring point 32 changes to red. Thereby, the monitoring point where the abnormality has occurred can be easily identified.

When a monitoring point on the map screen is clicked with a mouse, the screen is switched to an image captured by a camera installed at the monitoring point. This screen is the monitoring screen.

FIG. 3 shows an example of the monitoring screen.
The screen of FIG. 3 is a comprehensive monitoring screen of a blast furnace in an iron making plant. The monitoring screen G2 of FIG. 3 also shows the monitoring points 41 to 48 similarly to the map screen. Monitoring point 41
To 48 are a dry dust collector, a hot stove, a raw material charging section,
It is installed in places where monitoring of relay tanks, yards, blast furnace bodies, tapholes, topeedes, etc. is required. On the monitoring screen, process value data such as furnace pressure, molten iron temperature, blast temperature, blast flow rate, and blast pressure are displayed.

In the monitoring screen G2 shown in FIG.
When an abnormality occurs in, the display form of the monitoring point 46 on the monitoring screen changes. Clicking a monitoring point on the monitoring screen with the mouse switches to the monitoring screen of the clicked monitoring point. Monitoring points may be further displayed on the switched monitoring screen. When a monitoring point is selected on the monitoring screen in this way, the monitoring screen of the selected monitoring point is displayed, and the monitoring point and the monitoring screen are expanded such that the monitoring point is also displayed on the displayed monitoring screen. To go. As a result, the monitoring location can be narrowed down from a wide range to a narrow range.

FIG. 4 is a diagram showing another example of the monitoring screen. FIG. 4 shows a monitoring screen in which an operation target to be remotely operated is photographed. A camera is installed at a location where an operation target to be remotely operated is photographed, and an operation state of the operation target is displayed on a monitoring screen. In the example of the figure, a curved multi-stage bending type continuous casting machine is displayed in the window W1 of the monitoring screen G3. A remote operation is performed on the continuous casting machine while the continuous casting machine is displayed. Then, whether or not the remote operation has been correctly performed is confirmed on the monitoring screen.

FIG. 5 is a diagram showing another example of the monitoring screen. In the monitoring screen G4 of FIG. 5, the captured image to be operated is displayed in the window W1, and the process value data is displayed in the window W2. "FIC100", "TIC10
“0” and “PIC100” are tag names of the controller. The process value data obtained by each controller is displayed as a trend graph and a numerical table. This process value data is data that is referred to when monitoring is performed. Camera 1 to be operated
Obtain from 3. Process value data is obtained from the data collection means 19.

FIG. 6 is a diagram showing another example of the monitoring screen. In the monitoring screen G5 of FIG. 6, the captured image of the operation target is displayed in the window W1, and the operation state of the operation target is displayed in the windows W3 and W4 in a logic diagram. The window W3 displays the control state of the operation target in a ladder diagram. The window W4 displays a time chart of signals handled by the operation target. The display color of the ladder diagram is partially changed according to the progress of the operation logic of the operation target.
Data related to the operation of the operation target is stored in the data collection unit 19.
Get from. This data is, for example, an external contact signal, an operation command from an operator, or the like. The display state of the logic diagram is changed based on the data obtained from the data collection unit 19.

By displaying the operation state of the operation target in a logic diagram on the operation screen, the following can be confirmed. When starting up the plant, you can check whether each device is operating properly. When an abnormality occurs in the plant, by reproducing the operation state of the plant at the time of the abnormality in a logic diagram, it is possible to confirm in which part the abnormality has occurred. Thus, the cause of the abnormality can be determined.

FIG. 7 is a diagram showing another example of the monitoring screen. This screen is a screen that displays an image taken by the camera at the selected monitoring point. Operation buttons are displayed on the monitoring screen of FIG. The operation is performed by clicking the operation button. The operation buttons 60 and 61 are buttons for automatic recording. Operating the ON button 60 sets the automatic recording function, and operating the OFF button 61 releases the automatic recording function. The automatic recording function is a function of starting and stopping an operation of recording an image taken by the camera 13 in the image memory 15 in response to a time or an external trigger.

The operation buttons 62 to 64 are buttons for manual recording. When the recording start button 62 is operated, an operation of recording an image taken by the camera 13 into the image memory 15 is started. When the recording stop button 63 is operated, the recording is stopped, and when the pause button 64 is operated, the recording is temporarily stopped. When the instant image recording button 65 is operated, the camera 13
Is recorded in the memory.

FIG. 8 is a block diagram showing another embodiment of the present invention. This embodiment is an embodiment for realizing the function of the operation button in FIG. The memory control unit 70 performs a process for executing the operation of the operation buttons 60 to 65.

When the ON button 60 is operated and the automatic recording function is set, the memory control means 70 starts and stops the operation of recording the image data taken by the camera 13 in the image memory 15 by a time or an external trigger. I do it as an opportunity. The external trigger is, for example, a contact signal, an alarm, or the like. O
When the FF button 61 is operated, the automatic recording function is released.

The memory control means 70 has a recording start button 6
When the button 2 is operated, the operation of recording the image data obtained from the camera 13 into the image memory 15 is started. When the recording stop button 63 is operated, the recording is stopped, and when the pause button 64 is operated, the recording is temporarily stopped.

When the instant image recording button 65 is operated, the memory control means 70 records instant image data for one screen obtained from the camera 13 in the instant image memory 71.
The image calling means 17 calls the instantaneous image recorded in the instantaneous image memory 71 and displays the instantaneous image on the monitoring screen. This allows
On the monitoring screen, an image 72 and an instantaneous image 73 taken every moment are displayed. For this reason, an image at a desired timing can be left on the screen. It can take images as well as still pictures. The camera 13 here is a camera installed at the selected monitoring point.

In the embodiment shown in FIG. 8, both the momentarily taken image and the instantaneous image are displayed on the monitoring screen, but only one of them may be displayed.

The correspondence table memory 74 stores the user name, the authority to view the image of the monitoring point (authority 1),
A correspondence table is stored in which at least one of the authority (authority 2) that allows the user to change the monitoring point and the authority (authority 3) that enables the user to change the assignment of images to the monitoring screen is stored. I do. In the correspondence table,
For example, the user name A is associated with the authority 1, the user name B is associated with the authority 1 and the authority 2, and the user name C is associated with the authority 1, the authority 2 and the authority 3.

When the user name and the password are entered, the security means 75 reads out the authority corresponding to the user name from the correspondence table memory 74 if the entered user name and the password are correct. Restrict operations to Thereby, security can be changed step by step according to the user.

[0039]

According to the present invention, the following effects can be obtained.

According to the first aspect of the present invention, since the map screen showing the monitoring points is displayed on the plant equipment map, the positions of the monitoring points can be easily grasped. Also, an arbitrary monitoring point can be selected on the map screen to view a monitoring image.

According to the second aspect of the present invention, the monitoring point at which the alarm has occurred can be easily identified on the screen.

According to the third aspect of the present invention, when a monitoring point is selected on the map screen, a monitoring screen of the selected monitoring point is displayed, and when a monitoring point is further selected on the displayed monitoring screen, the selected monitoring point is displayed. The monitoring point and the monitoring screen are developed as if the monitoring screen of the point is displayed. Thus, when an abnormality occurs in the plant equipment, the abnormal part can be narrowed down from a wide range to a narrow range.

According to the present invention, not only the image of the monitoring point but also the process value data can be simultaneously viewed on the monitoring screen, so that more detailed monitoring can be realized.

According to the fifth aspect of the present invention, it is possible to monitor from a remote place whether or not a remote operation target has been correctly operated.

According to the sixth aspect of the present invention, the operation state of the operation target can be remotely monitored, and the process value data can be referred to on the same screen.

According to the seventh aspect of the present invention, the operation state of the operation target can be remotely monitored, and whether or not each device of the plant has operated according to the logic can be confirmed. It can be confirmed at which part the abnormality has occurred.

According to the eighth aspect of the present invention, it is possible to confirm both an image taken every moment and an instantaneous image at a desired timing on the monitor screen.

According to the ninth aspect, only an instantaneous image at a desired timing can be left on the screen.

According to the tenth aspect, an image of a monitoring point can be recorded in synchronization with a timing at which an external trigger is input. For example, an image can be recorded in accordance with the timing of generation of an alarm. In addition, since recording can be started and stopped according to time, the state can be recorded at a fixed period.

According to the eleventh aspect of the present invention, an operator can record an image of a monitoring point at an arbitrary timing by manual operation.

According to the twelfth aspect of the present invention, the authority granted according to the user name is changed. Thereby, security can be changed step by step according to the user.

As described above, according to the present invention, the position of the monitoring point of the plant can be easily grasped, and when an abnormality occurs in the plant equipment, the location of the abnormality can be narrowed down from a wide range to a narrow range. A monitoring system can be realized.

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing one embodiment of the present invention.

FIG. 2 is a diagram showing an example of a map screen.

FIG. 3 is a diagram showing an example of a monitoring screen.

FIG. 4 is a diagram showing another example of the monitoring screen.

FIG. 5 is a diagram showing another example of the monitoring screen.

FIG. 6 is a diagram showing another example of the monitoring screen.

FIG. 7 is a diagram showing another example of the monitoring screen.

FIG. 8 is a configuration diagram showing another embodiment of the present invention.

[Explanation of symbols]

REFERENCE SIGNS LIST 10 display means 12A to 12D, 31 to 34, 41 to 48 monitoring points 13 camera 14 A / D converter 15 image memory 16 selecting means 17 image calling means 18 display changing means 19 data collecting means 20 memory for process value data 21 display Control means 60, 61 Automatic recording button 62 Recording start button 63 Recording stop button 64 Pause button 65 Instantaneous image recording button 70 Memory control means 71 Instantaneous image memory 74 Corresponding table memory 75 Security means

────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] April 6, 2000 (200.4.6)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Full text

[Correction method] Change

[Correction contents]

[Document Name] Statement

[Title of the Invention] Plant monitoring system

[Claims]

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plant monitoring system for monitoring an operation state of plant equipment.

[0002]

2. Description of the Related Art In some plant equipment, a camera is installed at a monitoring point in order to ensure safe plant operation and monitors whether an abnormality has occurred in the plant. When you discover a plant anomaly,
The operator takes appropriate measures such as shutting down the plant according to the type of abnormality. Further, at the start-up of the plant, the operator visually monitors whether each device is operating properly.

In order to operate plants more safely,
Plant monitoring systems are being improved daily. However, the conventional plant monitoring system has the following problems. A large number of plant facilities may be arranged in a vast plant factory, and monitoring points may be scattered in the plant factory. In such a case, it is not easy to know where the monitoring point is located in the plant factory. When an abnormality has occurred in a plant facility, it has been difficult to narrow down which plant facility in the plant factory has failed and in which part of the plant facility the abnormality has occurred. When an abnormality occurs in the plant equipment, it is necessary to perform a reproduction test for reproducing the abnormal state using the actual equipment of the plant equipment. The cause of the abnormality is determined by reproducing the abnormal state. However, a large amount of expense is required to perform the reproduction test.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an alarm is generated.
Monitoring points can be easily identified on the screen,
When an abnormality occurs in the equipment, the monitoring location can be narrowed from a wide range.
It is an object of the present invention to realize a plant monitoring system capable of narrowing down to a narrow range .

[0005]

SUMMARY OF THE INVENTION The present invention is a plant monitoring system having the following configuration.

(1) Display means for displaying a map screen showing monitoring points on a plant facility map, a camera installed at an actual monitoring point and taking an image of the plant at the monitoring point, and an image of the camera Digitizing means for digitizing a signal, image memory for storing digitized image data, selecting means for selecting a monitoring point on the map screen, identifying the monitoring point selected on the map screen, and identifying the image data obtained from a camera installed in the monitoring point read from the image memory, an image calling means for displaying the monitoring screen by read image data, alarm monitoring points originating
A map image of the monitoring point at which the
And a display changing means for changing a display state on the screen .

(2) A monitoring point is displayed on a plant equipment map.
Display means for displaying a map screen showing the
Installed at monitoring points and plan at monitoring points
The camera that captures the image of the
Digitizing means to digitize and digitized images
An image memory for storing data, and a monitor on the map screen.
Selection means for selecting the viewing point and selection on the map screen
Identified monitoring points and identify the identified monitoring points.
The image data obtained from the installed camera is
Monitor from the memory
Image calling means for displaying a screen.
The monitoring screen called by the means shows the monitoring points.
Is monitored by the selection means on the monitoring screen.
When a point is selected, the image calling means
Monitoring points, such as displaying additional monitoring screens
Plan characterized by the fact that the monitoring screen and the monitoring screen are expanded
Monitoring system.

(3) Shooting an operation target to be remotely operated
The camera is installed in a location where
(1) characterized in that it is displayed on a visual screen
The plant monitoring system according to (2).

(4) Data related to the operation of the operation target
Data collection means for collecting data and storing the collected data
Memory for process value data to be
The captured image to be operated is displayed in the window, and another window
The operation status of the operation target is displayed in a logic diagram on
The display state of the magic diagram is the data collected by the data collection means.
Display control means for changing based on data.
(3) The plant monitoring system according to (3) .

(5) Instantaneous image displayed on the monitor screen
The image recording button and this instant image recording button are operated
And one screen obtained from the camera at the selected monitoring point
Memory for storing instantaneous image data for minutes
The plant monitoring system according to (1) or (2), further comprising a control unit , wherein the image calling unit calls an instantaneous image recorded in an instantaneous image memory and displays the instantaneous image on a monitoring screen.

(6) A monitoring point is displayed on the plant equipment map.
Display means for displaying a map screen showing the
Installed at monitoring points and plan at monitoring points
The camera that captures the image of the
Digitizing means for digitizing, and on the map screen
Selection means for selecting monitoring points and display on the monitoring screen
Instant image recording button and this instant image recording button
Is operated, the camera is
The recorded instantaneous image data for one screen is stored in the instantaneous image memory.
Memory control means for recording, and recording in the instantaneous image memory.
Image caller who calls the instantaneous image and displays it on the monitoring screen
And a plant monitoring system, comprising:
M

(7) displayed on the monitoring screen,
An automatic recording button for setting and canceling the automatic recording function
When the automatic recording function is set, the selected monitoring point
Image data obtained from another camera to the image memory.
Start or stop the operation by time or external trigger
Memory control means for performing
The plant monitoring system according to (1) or (2).

(8) User name and monitoring point image
Permission to view, even change the monitoring point
Change the authority of the function and the assignment of images to the monitoring screen
At least one of the authorities
A correspondence table memory for storing the correspondence table,
When the user name is entered, the memory
Read the authority corresponding to the user name from the
Security means for restricting operation to a range of
The plant supervisor according to (1) or (2),
Vision system.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the drawings. FIG. 1 is a configuration diagram showing one embodiment of the present invention. In FIG. 1, the display means 10 displays a map screen showing monitoring points on a plant equipment map. In the example of the figure, the display means 10 displays an equipment map in which the plant equipments 11A and 11B are arranged. Monitoring points 12A to 12D are shown on the equipment map. The display means 10 displays not only a map screen but also a screen necessary for monitoring a plant.

The camera 13 is installed at an actual monitoring point and captures an image of the plant at the monitoring point. The A / D converter 14 digitizes the image signal of the camera 13. The digitizing means in the claims is the A / D converter 14. The image memory 15 stores digitized image data. The selection means 16 selects a monitoring point on the map screen. The selection means 16 is, for example, a mouse, a keyboard, or the like. The image calling means 17 identifies a monitoring point selected on the map screen, reads out image data obtained from a camera installed at the identified monitoring point from the image memory 15, and displays the monitoring screen based on the read image data. I do.

The display changing means 18 changes the display state on the map screen of the monitoring point at which the alarm has occurred when the alarm has occurred at the monitoring point. The warning signal includes
Information indicating the monitoring point at which the alarm occurred is included. The data collecting means 19 collects process value data existing in the plant. Process value data memory 20
Stores the collected process value data. The display control means 21 controls display on the display means 10. The display control means 21 may simultaneously display the captured image of the monitoring point and the process value data on the monitoring screen according to the screen setting.

The operation of the plant monitoring system shown in FIG. 1 will be described. FIG. 2 is a diagram showing an example of the map screen. FIG.
On the map screen G1, a facility map showing the arrangement of plant facilities is displayed. The equipment map includes 8 from one building
The factory building is shown up to the building, and plant equipment is located in the factory building. Monitoring points 31 to 34 are shown in the equipment map. Cameras are installed at the actual positions of the monitoring points 31 to 34.

On the map screen G1 shown in FIG.
When an abnormality occurs in 2, the display mode of the monitoring point 32 on the map screen changes. For example, when no abnormality occurs, the display colors of the monitoring points 31 to 34 are green, and when an abnormality occurs at the monitoring point 32,
Only the display color of the monitoring point 32 changes to red. Thereby, the monitoring point where the abnormality has occurred can be easily identified.

When a monitoring point on the map screen is clicked with a mouse, the screen is switched to an image captured by a camera installed at the monitoring point. This screen is the monitoring screen.

FIG. 3 shows an example of the monitoring screen.
The screen of FIG. 3 is a comprehensive monitoring screen of a blast furnace in an iron making plant. The monitoring screen G2 of FIG. 3 also shows the monitoring points 41 to 48 similarly to the map screen. Monitoring point 41
To 48 are a dry dust collector, a hot stove, a raw material charging section,
It is installed in places where monitoring of relay tanks, yards, blast furnace bodies, tapholes, topeedes, etc. is required. On the monitoring screen, process value data such as furnace pressure, molten iron temperature, blast temperature, blast flow rate, and blast pressure are displayed.

In the monitoring screen G2 shown in FIG.
When an abnormality occurs in, the display form of the monitoring point 46 on the monitoring screen changes. Clicking a monitoring point on the monitoring screen with the mouse switches to the monitoring screen of the clicked monitoring point. Monitoring points may be further displayed on the switched monitoring screen. When a monitoring point is selected on the monitoring screen in this way, the monitoring screen of the selected monitoring point is displayed, and the monitoring point and the monitoring screen are expanded such that the monitoring point is also displayed on the displayed monitoring screen. To go. As a result, the monitoring location can be narrowed down from a wide range to a narrow range.

FIG. 4 is a diagram showing another example of the monitoring screen. FIG. 4 shows a monitoring screen in which an operation target to be remotely operated is photographed. A camera is installed at a location where an operation target to be remotely operated is photographed, and an operation state of the operation target is displayed on a monitoring screen. In the example of the figure, a curved multi-stage bending type continuous casting machine is displayed in the window W1 of the monitoring screen G3. A remote operation is performed on the continuous casting machine while the continuous casting machine is displayed. Then, whether or not the remote operation has been correctly performed is confirmed on the monitoring screen.

FIG. 5 is a diagram showing another example of the monitoring screen. In the monitoring screen G4 of FIG. 5, the captured image to be operated is displayed in the window W1, and the process value data is displayed in the window W2. "FIC100", "TIC10
“0” and “PIC100” are tag names of the controller. The process value data obtained by each controller is displayed as a trend graph and a numerical table. This process value data is data that is referred to when monitoring is performed. Camera 1 to be operated
Obtain from 3. Process value data is obtained from the data collection means 19.

FIG. 6 is a diagram showing another example of the monitoring screen. In the monitoring screen G5 of FIG. 6, the captured image of the operation target is displayed in the window W1, and the operation state of the operation target is displayed in the windows W3 and W4 in a logic diagram. The window W3 displays the control state of the operation target in a ladder diagram. The window W4 displays a time chart of signals handled by the operation target. The display color of the ladder diagram is partially changed according to the progress of the operation logic of the operation target.
Data related to the operation of the operation target is stored in the data collection unit 19.
Get from. This data is, for example, an external contact signal, an operation command from an operator, or the like. The display state of the logic diagram is changed based on the data obtained from the data collection unit 19.

By displaying the operation state of the operation target in a logic diagram on the operation screen, the following can be confirmed. When starting up the plant, you can check whether each device is operating properly. When an abnormality occurs in the plant, by reproducing the operation state of the plant at the time of the abnormality in a logic diagram, it is possible to confirm in which part the abnormality has occurred. Thus, the cause of the abnormality can be determined.

FIG. 7 is a diagram showing another example of the monitoring screen. This screen is a screen that displays an image taken by the camera at the selected monitoring point. Operation buttons are displayed on the monitoring screen of FIG. The operation is performed by clicking the operation button. The operation buttons 60 and 61 are buttons for automatic recording. Operating the ON button 60 sets the automatic recording function, and operating the OFF button 61 releases the automatic recording function. The automatic recording function is a function of starting and stopping an operation of recording an image taken by the camera 13 in the image memory 15 in response to a time or an external trigger.

The operation buttons 62 to 64 are buttons for manual recording. When the recording start button 62 is operated, an operation of recording an image taken by the camera 13 into the image memory 15 is started. When the recording stop button 63 is operated, the recording is stopped, and when the pause button 64 is operated, the recording is temporarily stopped. When the instant image recording button 65 is operated, the camera 13
Is recorded in the memory.

FIG. 8 is a block diagram showing another embodiment of the present invention. This embodiment is an embodiment for realizing the function of the operation button in FIG. The memory control unit 70 performs a process for executing the operation of the operation buttons 60 to 65.

When the ON button 60 is operated and the automatic recording function is set, the memory control means 70 starts and stops the operation of recording the image data taken by the camera 13 in the image memory 15 by a time or an external trigger. I do it as an opportunity. The external trigger is, for example, a contact signal, an alarm, or the like. O
When the FF button 61 is operated, the automatic recording function is released.

The memory control means 70 has a recording start button 6
When the button 2 is operated, the operation of recording the image data obtained from the camera 13 into the image memory 15 is started. When the recording stop button 63 is operated, the recording is stopped, and when the pause button 64 is operated, the recording is temporarily stopped.

When the instant image recording button 65 is operated, the memory control means 70 records instant image data for one screen obtained from the camera 13 in the instant image memory 71.
The image calling means 17 calls the instantaneous image recorded in the instantaneous image memory 71 and displays the instantaneous image on the monitoring screen. This allows
On the monitoring screen, an image 72 and an instantaneous image 73 taken every moment are displayed. For this reason, an image at a desired timing can be left on the screen. It can take images as well as still pictures. The camera 13 here is a camera installed at the selected monitoring point.

In the embodiment shown in FIG. 8, both the momentarily taken image and the instantaneous image are displayed on the monitoring screen, but only one of them may be displayed.

The correspondence table memory 74 stores the user name, the authority to view the image of the monitoring point (authority 1),
A correspondence table is stored in which at least one of the authority (authority 2) that allows the user to change the monitoring point and the authority (authority 3) that enables the user to change the assignment of images to the monitoring screen is stored. I do. In the correspondence table,
For example, the user name A is associated with the authority 1, the user name B is associated with the authority 1 and the authority 2, and the user name C is associated with the authority 1, the authority 2 and the authority 3.

When the user name and the password are entered, the security means 75 reads out the authority corresponding to the user name from the correspondence table memory 74 if the entered user name and the password are correct. Restrict operations to Thereby, security can be changed step by step according to the user.

[0039]

According to the present invention, the following effects can be obtained.

According to the first aspect of the present invention, at the monitoring point
When an alarm occurs, the monitoring point
Because the display state on the map screen has been changed,
The monitoring point where the information occurred can be easily identified on the screen.
You.

According to the second aspect of the present invention, on the map screen
Select a monitoring point to monitor the selected monitoring point.
The monitoring screen is displayed and the monitoring port is further displayed on the displayed monitoring screen.
Select a monitoring point to display the monitoring screen of the selected monitoring point.
Is displayed, the monitoring point and the monitoring screen
Unfold. This causes an abnormality in the plant equipment.
When it is born, the monitoring location is narrowed from a wide range to a narrow range
You can get into it.

According to the third aspect of the present invention, the operation of the operation target is performed.
Since the status is displayed on the monitoring screen,
Monitor the operation of the target correctly from a remote location
can do.

According to the fourth aspect of the invention, the operation of the operation target
Collect data related to
Since the display state of the logic diagram has been changed,
You can check if the device operated according to the logic
When an abnormality occurs in the plant,
You can check if an error has occurred in minutes.

According to the fifth aspect of the present invention , the time is displayed on the monitoring screen.
Instantly capture the images you take every moment and the timing you want to see
You can see both images.

According to the sixth aspect of the present invention, the desired timing
Only the instantaneous image of the
You can take images as well as teal photos .

According to the seventh aspect of the present invention, an external trigger is input.
Recording images of monitoring points in synchronization with the timing
be able to. For example, according to the timing of the alarm
To record images. Also recorded by time
Can start and stop, so the status can be recorded at regular intervals.
You.

According to the invention of claim 8, according to the user name
The authority to give is changing. This allows the user
Security can be changed in stages accordingly.

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing one embodiment of the present invention.

FIG. 2 is a diagram showing an example of a map screen.

FIG. 3 is a diagram showing an example of a monitoring screen.

FIG. 4 is a diagram showing another example of the monitoring screen.

FIG. 5 is a diagram showing another example of the monitoring screen.

FIG. 6 is a diagram showing another example of the monitoring screen.

FIG. 7 is a diagram showing another example of the monitoring screen.

FIG. 8 is a configuration diagram showing another embodiment of the present invention.

[Description of Signs] 10 display means 12A to 12D, 31 to 34, 41 to 48 monitoring points 13 camera 14 A / D converter 15 image memory 16 selecting means 17 image calling means 18 display changing means 19 data collecting means 20 process value Data memory 21 Display control means 60, 61 Automatic recording button 62 Recording start button 63 Recording stop button 64 Pause button 65 Instantaneous image recording button 70 Memory control means 71 Instantaneous image memory 74 Corresponding table memory 75 Security means

[Procedure amendment 2]

[Document name to be amended] Drawing

[Correction target item name] Fig. 8

[Correction method] Change

[Correction contents]

FIG. 8

Continued on the front page F-term (reference) 5C054 CF06 CG08 CH08 EA01 EB05 EH07 FE09 FE12 FE13 FE14 FE19 FE26 FE28 GA04 GD03 GD06 GD07 HA02 5C087 AA03 AA04 AA09 AA10 AA16 AA22 AA24 GG21 GG03 DD08 GG57

Claims (12)

[Claims] 1. A display means for displaying a map screen showing monitoring points on an equipment map of a plant, a camera installed at an actual monitoring point and capturing an image of a plant at the monitoring point, an image signal of the camera Digitizing means for digitizing, an image memory for storing digitized image data, selecting means for selecting a monitoring point on the map screen, and identifying the monitoring point selected on the map screen. A plant monitoring system, comprising: image reading means for reading image data obtained from a camera installed at a monitoring point from the image memory, and displaying a monitoring screen based on the read image data. 2. When an alarm occurs at a monitoring point,
2. The plant monitoring system according to claim 1, further comprising a display changing unit configured to change a display state of a monitoring point on which a warning has occurred on a map screen. 3. The monitoring screen called by the image calling means displays a monitoring point. When a monitoring point is selected by the selecting means on the monitoring screen, the image calling means displays the monitoring screen of the monitoring point. 2. The plant monitoring system according to claim 1, wherein the monitoring points and the monitoring screen are expanded so as to further display. 4. A data collection means for collecting process value data existing in a plant, a process value data memory for storing the collected process value data, and simultaneously displaying a captured image of a monitoring point and process value data on a monitoring screen. The plant monitoring system according to claim 1, further comprising: a display control unit configured to perform the display control. 5. The plant monitoring system according to claim 1, wherein the camera is installed at a place where an operation target to be remotely operated is photographed, and an operation state of the operation target is displayed on a monitoring screen. 6. A data collection means for collecting process value data to be referred to when monitoring the operation state of the operation target, a process value data memory for storing the collected process value data, and a window on the monitor screen. The plant monitoring system according to claim 5, further comprising: display control means for displaying a captured image of the operation target and displaying the process value data collected by the data collection means in another window. 7. A data collection means for collecting data related to the operation of the operation target, a process value data memory for storing the collected data, and a captured image of the operation target displayed in a window on a monitoring screen; 6. A display control means for displaying an operation state of an operation target in another window in a logic diagram, and changing a display state of the logic diagram based on data collected by the data collection means. A plant monitoring system as described. 8. An instantaneous image recording button displayed on the monitoring screen, and when the instantaneous image recording button is operated, the instantaneous image data for one screen obtained from the camera at the selected monitoring point is instantaneously imaged. 2. The plant monitoring system according to claim 1, further comprising: a memory control unit that records the image in a memory, wherein the image retrieving unit retrieves the instantaneous image recorded in the instantaneous image memory and displays the instantaneous image on a monitoring screen. 9. A display means for displaying a map screen showing monitoring points on an equipment map of a plant, a camera installed at an actual monitoring point and taking an image of a plant at the monitoring point, an image signal of the camera Digitizing means for digitizing, a selecting means for selecting a monitoring point on the map screen, an instant image recording button displayed on the monitoring screen, and when the instant image recording button is operated, the selected monitoring Memory control means for recording the instantaneous image data for one screen obtained from the camera at the point in the instantaneous image memory; and image calling means for invoking the instantaneous image recorded in the instantaneous image memory and displaying it on the monitoring screen. A plant monitoring system, characterized in that: 10. A recording start button, a recording stop button, and a pause button displayed on the monitoring screen, and when the recording start button is operated, image data obtained from a camera at a selected monitoring point is stored in an image memory. 2. The plant according to claim 1, further comprising: a memory control unit that starts a recording operation, stops recording when a recording stop button is operated, and pauses recording when a pause button is operated. Monitoring system. 11. An automatic recording button displayed on the monitoring screen for setting and canceling an automatic recording function, and an image obtained from a camera at a selected monitoring point when the automatic recording function is set. 2. The plant monitoring system according to claim 1, further comprising: a memory control unit that starts and stops an operation of recording data in the image memory in response to a time or an external trigger. 12. A user name, a right to only view an image of a monitoring point, a right to change a monitoring point, and a right to change allocation of an image to a monitoring screen. When a user name is input, a correspondence table memory storing a correspondence table in which at least one correspondence is stored, reads the authority corresponding to the user name from the correspondence table memory, and restricts the operation to the range of the read authority. The plant monitoring system according to claim 1, further comprising: