JPH07152984A - Method and device for monitoring plant - Google Patents

Abstract

PURPOSE:To provide the plant monitoring method and device which can make monitoring operation easy and efficient. CONSTITUTION:Plant facilities are photographed by an ITV camera 30 and a three-dimensional image of the same scene with an ITV image is generated from the photography data and the arrangement design data base 32 of the plant facilities; and an abnormal position in the three-dimensional image is highlighted with the signal of a sensor which detects abnormality and its abnormal position image is superimposed on the ITV image. Consequently, the state of the circumferential site of the abnormal position can be grasped and the monitoring operation is made easy and efficient.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plant monitoring method and apparatus for monitoring a plant such as a nuclear power plant.

[0002]

2. Description of the Related Art FIG. 9 is a functional block diagram of a conventional plant monitoring apparatus disclosed in, for example, Japanese Patent Laid-Open No. 2-29893. 2 is a plant such as a thermal power plant or a nuclear power plant, which is composed of various facilities and equipment. Reference numeral 4 is an input unit for taking in process data of these facilities, for example, data such as valve opening, switch on / off, water level, and pressure, and 6 is a three-dimensional information processing unit for processing the data from the input unit 4. , Signal processing unit 12, screen selection input unit 14, three-dimensional database 16, screen selection unit 18, screen correspondence selection unit 20, coordinate conversion unit
22, a screen compositing unit 24, and a display processing unit 26. 8
Is a display such as a CRT for displaying information from the three-dimensional information processing unit 6, and 10 is a screen selector for selecting the type of screen displayed on the display 8.

Next, the operation will be described. The process data of the plant 2 is captured by the input unit 4. There are various data such as reactor water level and main steam flow device. For example, the reactor water level RL is converted into an input data format by the input unit 4. This data format includes a header part, a control part, a detection position part, a three-dimensional information part, process data, and a CRC. The header section indicates the beginning and end of the frame, the control section issues various command instructions, the three-dimensional information section indicates whether or not three-dimensional display is performed, and the process data is the process data from the plant 2, CRC is an error check code.

At the input unit 4 which has taken in the reactor water level RL, the detected water level "RL" is inserted into "process data" as a measure in the data format. Similarly, the position indicating the water level in the reactor is displayed in the “Detection position part”, and “3
The 3D display is instructed to the "dimensional information section". Here, the three-dimensional display is a display capable of three-dimensional expression such as a perspective view. Other control units and CRC perform the same as general data transmission.

The data thus obtained is sent to the signal processing unit 12 of the three-dimensional information processing unit 6 via a line, and a CRC check is performed there. Includes dimension information and process data.

The screen selector 10 selects the type of screen to be displayed. Select whether to display the entire plant or a partial display, and if it is a partial display, turn on the switch indicating that part. The screen selection input unit 14 takes in the selection information from the screen selector 10 and converts it into a standard processing format.

The screen selection unit 18 selects a three-dimensional shape symbol such as a device to be displayed from the three-dimensional database 16 and sends it to the screen correspondence selection unit 20. Screen correspondence selector 20
Then, the plant data is fetched from the signal processing unit 12. If the reactor water level is displayed, the process data RL of the water level is incorporated in the shape format of the reactor water level.

Next, the coordinate conversion unit 22 performs coordinate conversion so that each device comes to a position to be displayed on the screen. Here, the existing position of, for example, a reactor on the three-dimensional database 16 is represented by the coordinate axes of the reactor building, and is registered on a database different from the coordinate axes of other high pressure turbine buildings. Coordinate conversion is performed so that these coordinate axes can be unified. Then, the screen synthesizing unit 24 edits the various screens obtained above and synthesizes them as one screen data. The display processing unit 26 converts the combined figure into a display format,
This is displayed on the display unit 8.

[0009]

Since the conventional plant monitoring method is configured as described above and only handles the data of the virtually displayed three-dimensional image, the actual situation can be directly observed from a remote place. I can't observe it. In addition, even if industrial television (ITV) image information is taken in, the user has to select and check the relevant information by looking at the image contents in order to obtain the information related to the image. Increased, inconvenient and easy to induce human error. In order to solve this problem, it is necessary to have a function to identify the equipment and equipment shown in the ITV screen.
The conventional image recognition technology requires computational processing capacity capable of handling a complicated and enormous load, and it has been difficult to apply it to a plant monitoring system used in real time.

The present invention has been made to solve the above problems and to improve the efficiency of user's work.
It is an object of the present invention to realize a plant monitoring method in which monitoring work is easy and necessary information related to monitoring is easily obtained.

[0011]

A plant monitoring method according to the present invention is an ITV image and a method corresponding to the ITV image.
A three-dimensional image is used to highlight an abnormal portion on the three-dimensional image and to display it in an overlapping manner on the ITV image. Further, the information related to the abnormal part is displayed.

[0012] Furthermore, the site designated on the ITV image is
The designated portion is identified by contrasting with the three-dimensional image. In addition, the information related to the designated part is displayed. Further, a maintenance work record is displayed as the related information.

Further, in the plant monitoring apparatus according to the present invention, in order to execute the above plant monitoring method, the monitoring computer is composed of a three-dimensional image generating section, an abnormal site image synthesizing section, and a site name extracting section. Is.

[0014]

According to the plant monitoring method and apparatus of the present invention, the highlighted three-dimensional image of the abnormal portion is displayed on the ITV image, and the related information such as the maintenance work record related to the abnormal portion is displayed. And provide the site environment information related to the abnormal part and other necessary information accurately,
Help the user monitor work. Furthermore, since the site specified by the user on the ITV image is identified by comparing it with the three-dimensional image, a complicated image recognition process is not required for identification, and the specified site can be quickly identified by a simple process. Also, related information such as a maintenance work record related to the designated part is displayed to provide the information required by the user to assist the monitoring work.

[0015]

【Example】

Example 1. Example 1 of the present invention will be described below.
FIG. 1 is a block diagram showing a plant monitoring apparatus according to the present invention 1, in which an industrial television (ITV) camera 30 is installed at a site distant from a monitoring place to capture an actual image of plant equipment and output captured data. Then, the shooting data includes the camera position, angle, magnification, etc., and the ITV image and the shooting data information are transmitted by wire or wirelessly.

Reference numeral 130 denotes an ITV receiving device for receiving this, 13
Reference numeral 2 is a monitoring computer system that receives signals from the ITV receiver 130 and performs processing, the details of which will be described later. Reference numeral 46 is a CRT display which is a display device for displaying the output of the monitoring computer system 132, and 134 and 136 are a mouse and a touch panel which are input devices for the user (operator) to input to the monitoring computer system 132.

FIG. 2 is a functional block diagram mainly showing the monitoring computer system 132 of FIG. 1 in detail. Reference numeral 32 is prepared in the first storage device in order to generate a three-dimensional image virtually displaying plant equipment. This is a stored layout database of plant equipment. Here, the virtual display means displaying an image based on the installation design data, not an actually captured image, and the three-dimensional image is not only a front view or a plan view but also a perspective view. Say what can be expressed in.

Reference numeral 34 is a diagnostic result data group in which the abnormality diagnosis result of the plant and online plant process data are accumulated in the second storage device, and 35 is an analysis table (see FIG.
60), and a diagnostic result analysis processing unit for performing an analysis process of the diagnostic result from the data stored therein and the data of the diagnostic result data group, and 36 represents the layout design database 32 and the imaging data of the ITV camera 30. Using it, a three-dimensional image corresponding to the image of the ITV camera 30, that is, a three-dimensional image showing the same scene as the captured real image is generated, and the abnormal portion is highlighted by the data from the diagnostic result analysis processing unit 35. 3D image generation unit.

Reference numeral 38 is a three-dimensional image processing unit for processing the image generated by the three-dimensional image generating unit 36, and 40 is a process for combining the abnormal site image of the plant equipment output from the three-dimensional image generating unit 36 and the ITV image. An abnormal part image synthesizing unit 42 is a related information output unit that outputs information related to an abnormal part or a part corresponding to an instruction input by a maintenance staff. The abnormal part image synthesizing unit 40 and the related information output unit 42 are 3 It constitutes a three-dimensional image processing unit 38. Reference numeral 44 denotes a part name extraction unit that specifies the name of the part specified on the ITV image by combining the ITV image and the three-dimensional image corresponding to the ITV image.

FIG. 3 is a diagram in which plant equipment is virtually displayed in a three-dimensional image, and highlights such as blinking (blinking) an abnormal part of the equipment in the three-dimensional image from the state of process parameters of the plant and the diagnosis result of the plant. 9 is a flowchart showing a process for displaying the image by superimposing it on the ITV image. First, in step 52, a three-dimensional image representing the same scene as the image captured by the ITV camera 30 is obtained based on the captured data of the ITV camera 30 and using the plant equipment layout design database 32 in a three-dimensional image generation unit. 36
Prepared in advance.

On the other hand, a diagnostic system outside the apparatus, which includes a sensor for detecting the process data of the plant and the presence / absence of abnormality
The information from 54 is put in the diagnostic result data group 34.
It is assumed that this information, that is, the diagnosis result data is distinguished by the identification number, and that the diagnosis result "ID10: Diesel generator lubricating oil pipe abnormality" is input as shown in 56, for example. The diagnosis result is transferred to the diagnosis result analysis processing unit in step 58, and the abnormal part name is searched from the data described in advance in the analysis table 60 and the identification number (ID10 in this example) of the diagnosis result. The data of the analysis table 60 is composed of attributes such as the identification number of the diagnosis result, the abnormal part name, and the related parameter name. In this case, the identification number I of the diagnosis result
The data regarding D10 is searched, and the data of the diesel generator lubricating oil pipe described in the attribute of the abnormal portion is retrieved.

The abnormal part name 61 output in step 58 in this manner is sent to the three-dimensional image generation section 36. Further, since the three-dimensional image generated in step 52 is created from the layout design database, each part on the image can be associated with the part name. Step 62, 3
A process of blinking the display color of the portion corresponding to the abnormal portion name on the three-dimensional image is performed. In step 64, the abnormal portion image synthesizing unit 40 performs the superimposing display processing of the blink portion and the image from the ITV camera 30. From the above, when the user focuses on the ITV image, it is as if the abnormal part
Displayed as shown directly in the image. In addition, for example, when there is vibration or steam spouting in or around the abnormal part, the abnormal part is displayed on the screen showing them, which is useful for correctly grasping the situation at the site.

Example 2. Example 1. FIG. 4 shows a flowchart of a method of displaying an image in which an abnormal part highlighted (for example, blinking) and an ITV image are displayed and information related to the abnormal part is displayed. Example 1. The illustration and description of the portions overlapping with are omitted. Based on the identification number of the diagnosis result in step 58, the diagnostic message from the analysis table 60 shown in FIG. 3 is displayed.
70 and the abnormal part name 61 are sent to the related information output unit 42, and the following processing is performed.

The diagnostic message 70 is processed for display in step 72. Also, the plant equipment database
The related parameter name and the related equipment data name related to each part are stored in 76, and these are searched in step 74. Procedure based on the retrieved related parameter name 78
The diagnosis result data group 34 is searched at 82 and 84, the current value and the trend value are taken out, and the process for displaying the numerical value and the graph is performed.

Further, the plant maintenance database 88 stores maintenance records of each plant facility, and in step 86, the plant maintenance database 88 is searched and displayed based on the associated facility data name 80 and abnormal site name 60. Perform processing.
In Step 90, Example 1. By capturing the ITV image as described above, the current state of the site of the abnormal part and the related equipment is displayed on the CRT screen, and in step 92, the maintenance work record is displayed as text and a still image. Further, in step 94, display processing of the structure of the facility / equipment related to the maintenance target, maintenance manual data, etc. is performed.

FIG. 5 shows an example of the CRT screen when the related information is output. In Fig. 5, 100 indicates IT, which shows the situation at the site.
A V image display window, 102 is a diagnostic message display window, 104 is a maintenance work record display window, 106 is a window for displaying trend graphs and current value information of related information such as diagnostic results, and in the example of FIG. The maintenance target facility data in step 94 of 4 is not displayed. In this embodiment, the maintenance work records so far are displayed, which is useful for taking measures against the abnormal part.

Example 3. I at a remote plant site
Taking in TV images to the computer system for monitoring,
By using the captured data of the ITV to generate a three-dimensional image that virtually displays the same scene as the ITV image, and comparing and comparing both the ITV image and the three-dimensional image, the user can
It is possible to identify the designated portion on the TV image and extract the names of equipment, equipment, portions, and the like. FIG. 6 shows an example in which an ITV image window 110 and a three-dimensional image window 112 are displayed on the CRT screen and the respective images are displayed therein for the purpose of explanation. The coordinates of each point in the figure are absolute coordinates on the CRT screen.

An instruction input point on the ITV screen by the user is indicated by a pointer 114, and its coordinates are (X1, Y1). Set the coordinates of the reference point of the ITV image window 110 to (XW
1, YW1), and the relative coordinate value from the reference point is (a,
b) Then, a = X1-XW1 and b = Y1-YW1. Since (XW1, YW1) is the information that this display system has, and (X1, Y1) is the input value from the user's mouse or the like, both are information that can be used by the plant monitoring device.

When the coordinates of the reference point of the three-dimensional image window 112 are (XW2, YW2), the point on the three-dimensional image corresponding to the point input on the ITV image, that is, ITV
The coordinates (X2, Y2) of a point that displays the same equipment or device designated on the image on the three-dimensional image can be derived from the relationship of X2 = XW2 + a Y2 = YW2 + b. The point (X
2, Y2), the plant equipment layout design database is referred to, and based on this, the user can specify the designated equipment on the ITV image. The flow of the above processing is shown in FIG. Using this method,
For example, when the user finds a part in the ITV image that may be abnormal, the part can be quickly known.
Although the three-dimensional image is displayed on the CRT screen at the same time as the ITV image in FIG. 6, only the ITV image is displayed and the three-dimensional image is not displayed. You may

Example 4. By combining the second embodiment and the third embodiment, it is possible to display the information related to the equipment together with the ITV image by using the plant equipment name specified by the user's instruction input on the ITV screen. That is, the plant equipment name 120 obtained by the method described in the third embodiment may be used in place of the abnormal site name 60 in FIG. 4 to perform the same processing as shown in FIG. 4 below. .
FIG. 8 shows an example of a CRT screen display when this process is executed. Reference numeral 122 is a window displaying the specified plant equipment name 120. In this embodiment, the maintenance work records so far are displayed, which is useful for judging the state of the designated part.

[0031]

Since the present invention is constructed as described above, it has the following effects. That is, the highlighted abnormal part is displayed by being superimposed on the IVT image, and information related to the abnormal part is displayed, so that the site environment information regarding the abnormal part is accurately provided, and the user can perform maintenance work. Necessary information such as information to be prepared before the operation can be easily provided, so that the user's work becomes easy and efficient.

Further, since the site designated by the user on the ITV image is identified by comparing it with the three-dimensional image, the designated site can be quickly identified by a simple process, and information related to this designated site can be obtained. Since the information is displayed, the information required by the user can be accurately provided, which facilitates the user's work and improves efficiency.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing a plant monitoring apparatus according to a first embodiment of the present invention.

FIG. 2 is a functional block diagram showing a monitoring computer system in FIG.

FIG. 3 is a flowchart showing highlight processing of an abnormal portion and overlay display processing with an ITV image according to the first embodiment of the present invention.

FIG. 4 is a flowchart showing a display process of displaying related information of an abnormal part according to the second embodiment of the present invention.

FIG. 5 is an explanatory diagram showing a CRT screen according to the second embodiment of the present invention.

FIG. 6 is an explanatory diagram showing a CRT screen for explaining a third embodiment of the present invention.

FIG. 7 is a flowchart showing a process of identifying a designated portion according to the third embodiment of the present invention.

FIG. 8 is an explanatory diagram showing a CRT screen in Example 4 of the present invention.

FIG. 9 is a functional configuration diagram showing a conventional plant monitoring device.

[Explanation of symbols]

 30 ITV camera 32 Equipment layout design database (first storage device) 34 Diagnosis result data group (second storage device) 35 Diagnosis result analysis processing unit 36 Three-dimensional image generation unit 40 Abnormal part image synthesis unit 42 Related information output unit 44 Part name extraction unit 46 CRT display

Claims (6)

[Claims] 1. A plant monitoring method for monitoring the plant using a three-dimensional image that virtually displays the plant facility based on the layout design data of the plant facility, wherein the plant facility is a camera of an industrial television. While taking a picture, the three-dimensional image corresponding to the image by the industrial television is generated by using the photographing data of the camera, and the abnormal portion on the three-dimensional image is generated by the signal from the sensor detecting the abnormality of the plant. Highlight
A plant monitoring method characterized by displaying the highlighted image of the abnormal portion on the image of the industrial television by displaying it on a display device for monitoring. 2. The plant monitoring method according to claim 1, wherein the related information related to the abnormal part is displayed. 3. A plant monitoring method for monitoring the plant using a three-dimensional image that virtually displays the plant facility based on the layout design data of the plant facility, wherein the plant facility is a camera of an industrial television. While shooting, the three-dimensional image corresponding to the image of the industrial television is generated using the shooting condition data of the camera, and the designated portion on the displayed image of the industrial television is referred to as the three-dimensional image. In contrast, a plant monitoring method characterized by identifying the above portion. 4. The plant monitoring method according to claim 3, wherein the related information related to the designated part is displayed. 5. The plant monitoring method according to claim 2 or 3, wherein the related information is a maintenance work record. 6. An industrial television camera for photographing plant equipment and outputting photographed data, an industrial television receiver for receiving an image photographed by this industrial television camera and the photographed data through a wired line or a wireless line, A monitoring computer system for receiving and processing output from this industrial television receiving device, an input device for inputting to this monitoring computer system, and a display device for displaying the output from the monitoring computer system, The monitoring computer system includes a first storage device for storing the layout design data of the plant equipment, a second storage device for storing the abnormality diagnosis result of the plant and online plant process data, and data from the second storage device. A diagnostic result analysis processing unit that performs a diagnostic result analysis process, and the layout design data of the first storage device. 3D image corresponding to the image by the industrial television camera is generated from the data obtained by the industrial television camera and the abnormal data of the plant is highlighted by the data from the diagnosis result analysis processing unit. Related to the three-dimensional image generation unit, the abnormal region image synthesis unit that synthesizes the abnormal region image output from the three-dimensional image generation unit and the image by the industrial television camera, the abnormal region or the region corresponding to the instruction input The name of the part specified on the image by the industrial TV camera is specified by the combination of the related information output unit that outputs the information, the image by the industrial TV camera, and the three-dimensional image corresponding to this image. A plant monitoring device comprising a part name extraction unit.