JP2000249782A - Displaying method and device for image information - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an image information displaying method and a device thereof based on an information developing method matching a human recognition characteristic from an ergonomics viewpoint in plant operation using a CRT and the like as an information displaying/monitoring medium. SOLUTION: In this image information displaying method and a device thereof, plant information is hierarchically organized so as to be displayed in the image form. Information in the upper level is fixedly displayed, while information in the middle level lower than the upper level information is displayed in a plurality of images. As the plurality of images representing the middle level information are arranged, the whole condition of the plant can be grasped.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a method and apparatus for displaying image information of a plant, and more particularly to a method and apparatus for displaying image information suitable for a large plant such as a nuclear power plant.

[0002]

2. Description of the Related Art A plant control panel used in a nuclear power plant or the like initially starts with a hard-wired monitoring and operating device such as a recorder, an indicator, a knob, and a dial.
Now, with the rapid progress of information technology and networks,
HSI mainly using CRT (cathode ray tube)
(Human System Interface) has been introduced. Therefore, in the information processing of the driver, the “recognition” work is increasing more than before.

[0003] With the change of the work form and the change of the environment, the weight of the system design has shifted from the conventional reduction of the physical load to the appropriate distribution of the mental load.

[0004] In particular, the information display screen of a large-scale plant such as a nuclear power plant has an enormous amount of system diagrams, alarms, parameter trends and the like, and often has a hierarchical structure.

[0005] Therefore, the operator must be familiar with the screen contents, the screen configuration or the hierarchical structure.

[0006]

However, if the operator is unfamiliar with or forgets about the screen contents, the screen configuration, or the hierarchical structure, the mental burden on the operator until the intended information is reached. And it may take a long time to reach the target information.

[0007] In order to use a screen development method such as a CRT in a more appropriate information presentation form, it is necessary to grasp how the operator is currently performing tasks and to derive an information presentation form based on ergonomics. Needed.

Accordingly, an object of the present invention is to provide an image information display / monitoring medium based on an information development method adapted to human cognitive characteristics from an ergonomic point of view in a plant operation based on a CRT or the like. It is to provide a display method and a display device.

[0009]

According to the present invention, there is provided an image information display method for hierarchically displaying plant information in a form of an image, wherein information of an upper hierarchy is fixedly displayed, and information of a lower hierarchy than the information of the upper hierarchy is fixed. The information of the middle hierarchy is displayed as a plurality of images, and the whole situation of the plant is displayed by arranging the plurality of images.

[0010] Further, an abnormal state of the system may be displayed by a system alarm display function added to the screen displaying the information of the middle hierarchy.

Further, a screen for displaying information of a lower hierarchy lower than the middle hierarchy may be selected by a screen selection function added to a device display portion of the screen for displaying the middle hierarchy information. .

[0012] Further, on a screen for displaying information of a lower hierarchy lower than the middle hierarchy, a detailed device display is performed for a predetermined device, and devices related to the predetermined device are also displayed. The screen between lower layers may be directly selected by the screen selection function added to the device display unit of the screen displaying the information of the above.

[0013] Further, on a screen for displaying information of a lower hierarchy lower than the middle hierarchy, a detailed device display is performed for a predetermined device, and devices related to the predetermined device are also displayed. The abnormal state of the device may be displayed by an alarm display function added to the device display section of the screen displaying the information of the above.

According to the present invention, there is provided an image information display device for hierarchically displaying plant information in a form of an image, wherein first display means for fixedly displaying information of an upper hierarchy, and a middle display lower than the information of the upper hierarchy. Display hierarchical information in multiple images,
Second display means for displaying the overall status of the plant by arranging the plurality of images.

Further, the second display means may display an abnormal state of a system by a system alarm display function added to a screen for displaying the information of the middle hierarchy.

The second display means may display a screen for displaying information of a lower hierarchy lower than the middle hierarchy by a screen selection function added to a device display section of the screen for displaying the information of the middle hierarchy. You may make it select.

[0017] The second display means may include a screen for displaying information of a lower hierarchy lower than the middle hierarchy.
A detailed device display is performed for a predetermined device and devices related to the predetermined device are also displayed, and a screen between lower layers is displayed by a screen selection function added to a device display unit of a screen for displaying information of the lower layer. You may make it select directly.

[0018] The second display means may include a screen displaying information of a lower hierarchy lower than the middle hierarchy.
A detailed device display is performed for a predetermined device, and a device related to the predetermined device is also displayed, and an abnormal state of the device is displayed by an alarm display function added to a device display section of a screen for displaying information of the lower hierarchy. You may do

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an image information display method and apparatus according to an embodiment of the present invention will be described with reference to the drawings. Note that this embodiment shows an example in which the present invention is applied to a nuclear power plant.

FIG. 1 shows the results of a task analysis performed by a plant operator during an emergency response simulator training and a study of a mental model of the operator.

As shown in FIG. 1, the thinking process of the operator includes firstly the whole plant level for grasping the whole picture of the plant, secondly the system level as one integrated system, 3 shows the equipment level 3
It turns out that it consists of a hierarchical structure. In other words, the thinking process of the operator changes between the entire plant and the equipment section.

In the case of a boiling water nuclear power plant (BWR) as an example, immediately after a reactor scram (emergency stop), an interlock associated with the scram operates, and parameters of the reactor pressure and the reactor water level fluctuate. At this time, monitoring and confirmation at the plant level is mainly performed. If there is no abnormality, the fluctuation parameters converge in about 2 minutes.

From this point on, the operator's thinking shifts to checking the state of the system and the state of the equipment and to the operation of stopping unnecessary equipment and starting the required equipment in order to stop the plant.

That is, the mental model of the operator changes immediately after the scrum and when a certain amount of time has passed from the scrum. In FIG. 1, the mental model of the operator is hierarchized, and a time element is shown.

FIG. 1 shows the basic correspondence at the time of scrum, and the area of each layer indicates the amount of information processing.

The information processing amount of each layer changes with time t. That is, immediately after the scrum (t = 0), the amount of information processing at the entire plant level is large, and the operation includes confirmation of parameters and operation confirmation such as automatic start and automatic stop of devices.

[0027] At a stage slightly after the scrum,
The previously confirmed scrum state, and the automatic start and stop devices have almost no reversibility, reducing the need for reconfirmation.Also, parameter fluctuations calm down, so the frequency of confirmation is reduced, and information processing volume is reduced. Will decrease.

Therefore, the operator's focus shifts from the whole plant level to the system level and the equipment level according to the elapsed time from the scrum.

For example, steam that has completed work in a turbine at a system level is cooled by a condenser and returned to water, and a supply / condensation system exists as a supply line for this water to a reactor (shown in the figure). However, there is a confirmation of the status of this water supply and return system.

At the equipment level, in order to grasp the supply and return water system in detail, it is necessary to check the opening of the minimum flow valve of the automatically started pump and the operation status of the valve of the automatically stopped pump.

The abnormal event converges (n = 0 in FIG. 1).
), The information processing and the operation amount at the system level and the equipment level are reduced as in the case of the plant level, and the ground state is established.

The example shown in FIG. 1 is a basic task handling situation of the operator during the reactor scram. The task analysis of the operator for multiple failures such as occurrence of further abnormalities during the reactor scram is described. Was carried out.

Here, multiple faults can be regarded as an interrupt task.

That is, at the plant level, it is assumed that an interrupt task that has a higher priority than the routine response has occurred partially and the response is implemented.

On the other hand, at the system level and the equipment level, depending on the contents and urgency of the interrupt task, system monitoring, equipment level alarm confirmation, parameter trend confirmation, response operation,
Tasks such as confirmation of feedback effects occur.

When the correspondence of the other event added from the middle of the scrum converges as described above, the original scrum correspondence is returned.

FIG. 1 shows an accident response model of an operator. The operator can collect information and operate the equipment such as a CRT by monitoring the entire plant, checking the status of the system, and responding at the equipment level. Through the interface.

These huge screens are systematically arranged,
There is no problem if a screen development method that matches the image of the operator is provided. However, in the conventional image information display method,
In many cases, the existence of an enormous number of screens and the information contents presented on the screens depend on the learning and mastering of the operator.

Also, in the conventional image information display method, the currently displayed screen is replaced with another screen.
There were many burdens on the operators, such as the number of procedures involved and the complexity of screen development.

On the other hand, in the present embodiment, an information expanding method based on the mental model (FIG. 1) obtained from the task analysis of the operator is adopted.
This will be described with reference to FIG.

FIG. 2 is a schematic diagram showing the image information display device according to the present embodiment.

From the plant 103, various process signals 201 indicating the plant state are transmitted. The process signal 201 is sent to the process signal terminal board 104.

The process signal 202 from the process signal terminal board 104 is processed as a meter / meter or by a computer, and the operation information of the plant is provided by a display medium such as a CRT. The flow of this series of signals and the information processing method are not different from those in the related art.

With this information development method, the plant display panel (first
The display unit 101 fixedly displays and presents information corresponding to the entire plant shown in FIG. On the other hand, a plurality of individual image information presentation devices (second display means) 102 such as CRTs
a to 102n have a function of providing information of the system and the device in FIG.

Individual image information presentation devices 102a to 102n
Is the image data signal 2 by the image data editing device 106.
04 is displayed. In addition, the individual image information presenting apparatuses 102a to 102n
The image data editing device 106 sends back the image data by sending the signal 204 requesting the specific data to 06.

Individual image information presentation devices 102a to 102n
The content is used in recent plants and does not require a new method.

The plant display panel 101 always presents certain information suitable for the state of the plant during operation such as start-up and reactor scram.

The plant display panel 101 has a function of directly displaying the process signal 202 from the plant signal terminal board 104 as a meter or an instrument, and a function of editing a process signal by the process signal converter 105 and displaying an edited data signal 203. .

The plant display panel 101 is responsible for displaying the upper hierarchy (entire plant) of FIG. 1 showing the mental model, so that the operator can use the middle hierarchy (system) and the lower hierarchy (equipment).
By performing the information operation described above, the object can be achieved.

Individual image information presentation devices 102a to 102n
Has presented the information of the middle hierarchy and the lower hierarchy, as described above. The information displayed here will be described below.

The information display on the plant display panel 101 is made up of a physically limited space, so that information on a large-scale plant cannot be provided in detail, and is limited to main information. Therefore, more detailed information is obtained from the individual image information
102n. The display information serving as a reference for the individual image information presentation devices 102a to 102n includes a middle hierarchy (system). That is, information is presented to each individual image information presentation device 102a to 102n in a system unit.

By presenting information side by side for each system in this manner, it is possible to express the plant state in a closed loop, and to enable an image display mode suitable for the operator's image.

FIG. 3 shows a reactor system as a display example of the middle hierarchy on the image information display device in the BWR power plant. In addition, an emergency core cooling system, a condensate / water supply system, a turbine generator system, a power supply system, and the like can be assigned to the middle hierarchy.

As described above, the system hierarchy information of the plant can be grasped by displaying the middle hierarchy screens in parallel.

The middle hierarchy screen shown in the example of FIG. 3 has the following features. -Explicit and implicit indications In Figure 3, the indications directly related to the reactor system are explicitly emphasized. For example, the letters of MSIV (Main Steam Isolation Valve) 301 are enlarged or the line representing the piping is thickened.

On the other hand, indications not directly related to the reactor system are implicit. For example, the character of FWS (water supply system) 302 is made smaller, or the line representing the pipe is made thinner. By using the explicit display and the implicit display in this manner, the flow of the system can be smoothly understood, and the operator can easily recognize the flow.

System Alarm Display Function In FIG. 3, the MSIV 301, FWS 302, and the like are generically referred to as systems. When an alarm occurs in these systems, the fact that an alarm has occurred is notified by color or flicker.

Therefore, the operator operates the individual image information presentation device 1
By monitoring the 02a to 102n side by side, it is possible to easily grasp the abnormality of the system.

Further, it is possible to easily grasp not only the abnormality of the explicitly indicated system but also the abnormality of the related system which is implicitly indicated.

This means that the propagation of the abnormality can be easily grasped. Conventionally, there is a possibility that if the information is not taken out, it may be overlooked due to the thinking of the operator.

Screen switching (selection) function The individual image information presenting apparatuses 102a to 102n present a system screen which is usually a middle hierarchy, but the operator needs more detailed equipment level (lower hierarchy) images. Then, the lower hierarchy screen can be called directly from the middle hierarchy screen.

For example, in the middle hierarchy screen of FIG.
By performing a touch operation (a mouse operation or a light pen) on the IV (main steam isolation system) 301, the MSIV is performed.
A detailed screen (not shown), which is a device screen (lower hierarchical screen), is displayed.

In FIG. 3, by touching the MSIV 301 and further designating the type of the screen, the image data editing device 106 of FIG. 2 recognizes the information screen to be presented, edits data according to the screen, and The image information presentation device 102a-102n replaces the screen with the designated MSIV301.

At this time, the image data editing device 106
An image to be output is selected from the lower layer screen information shown in (a) and (b).

That is, the MS in the reactor system screen of FIG.
By selecting the IV 301, a certain range (X1 to X2, Y1 to Y2) of the XY coordinates is recognized, it is recognized that the MSIV device level screen is selected, and n is received as the image type. By editing the image,
The image data signal 204 is transmitted to the individual image information presenting apparatuses 102a to 102n.

The data of the screen types shown in FIGS. 4A and 4B correspond to the individual image information presentation devices 102a to 102a shown in FIG.
This is made possible by allocating a specific area of a 2n CRT.

The screen (not shown) at the device level (lower hierarchy), like the system screen (middle hierarchy), explicitly emphasizes the display directly related to the device. For example, in the case of a device screen showing MSIV, the characters are enlarged or lines representing pipes are thickened. On the other hand, a display that is not directly related to MSIV is implicitly indicated by, for example, reducing the size of a character or thinning a line representing piping.

By using the explicit display and the implicit display in this manner, the flow of the equipment can be smoothly understood, and the operator can easily understand the flow.

Also in the device level diagram, the alarm display notifies the aforementioned system alarm display by color or flicker.

In the device level diagram, by touching the device (eg, device name) shown in the diagram, the screen of the touched device can be selected. At this time, the screen types shown in FIGS. 4A and 4B are also input.

To display a higher-level screen of a device from the device-level screen, touch a specific area.
You can return to the system screen.

As described above, according to the image information display method and apparatus of the present embodiment, the mental model related to the information processing of the driver, which is originally composed of three layers, displays the information of the upper layer in a fixed manner. This can be done by hierarchical information expansion.

Further, by displaying a plurality of two-layer screens in parallel, the plant system can be displayed along a continuous flow.

Since the screen can be developed with the plant image as described above, it is not necessary to acquire a troublesome operation method, and it is possible to shift to the required screen with a minimum operation.

[0075]

As described above, according to the present invention, as an information presenting / monitoring medium, in a plant operation based on a CRT or the like, an information developing method adapted to human cognitive characteristics from an ergonomic point of view. , An image information display method and apparatus can be provided.

[Brief description of the drawings]

FIG. 1 is a diagram showing a corresponding model of an operator as a result of studying a mental model of the operator.

FIG. 2 is a schematic configuration diagram showing an image information display device for a BWR power plant according to one embodiment of the present invention.

3 is a diagram showing a reactor system as a display example of a middle hierarchy in the image information display device for a BWR power plant shown in FIG. 2;

FIG. 4 is a diagram showing a display example of a lower hierarchy in the image information display device for the BWR power plant shown in FIG. 2;

[Explanation of symbols]

101 Plant display panel (first display means) 102a, 102b... 102n Individual image information presentation device (second display means) 103 Plant 104 Process signal terminal board 105 Process signal conversion device 201, 202 Process signal 203 Editing data signal 204 Image data signal

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Tsutomu Otsuka 1 Toshiba-cho, Fuchu-shi, Tokyo Inside the Fuchu Plant, Toshiba Corporation (72) Inventor Shun Ikeda 8 Shin-Sugita-cho, Isogo-ku, Yokohama-shi, Kanagawa Pref. F-term in Toshiba Yokohama Office (reference) 2G075 AA03 BA03 BA16 CA02 DA20 FA20 FC14 FC20 FD01 FD04 GA28 GA34 5E501 AC02 BA05 CA03 CB09 CB11 EA05 EA13 EB01 EB05 FA14 FA22 FA43 FA44 FB28 FB30 FB44 5H223 AA03 EE06

Claims (10)

[Claims] In an image information display method for hierarchically displaying plant information in an image, information of an upper hierarchy is fixedly displayed, and information of a middle hierarchy lower than the information of the upper hierarchy is displayed by a plurality of images. An image information display method, comprising displaying an image and displaying the whole situation of the plant by arranging the plurality of images. 2. The image information display method according to claim 1, wherein an abnormal state of the system is displayed by a system alarm display function added to the screen displaying the information of the middle hierarchy. 3. A screen for displaying information of a lower hierarchy lower than the middle hierarchy by a screen selection function added to a device display section of the screen for displaying the information of the middle hierarchy. The image information display method according to claim 1. 4. A screen for displaying information of a lower hierarchy lower than the middle hierarchy, displaying a detailed device for a predetermined device and displaying devices related to the predetermined device, The image information display method according to any one of claims 1 to 3, wherein a screen between lower layers is directly selected by a screen selection function added to a device display unit of a screen for displaying the information of the image information. . 5. A screen displaying information of a lower hierarchy lower than the middle hierarchy, displays a detailed device for a predetermined device and also displays a device related to the predetermined device, and displays the information related to the predetermined device. The image information display method according to any one of claims 1 to 4, wherein an abnormal state of the device is displayed by an alarm display function added to a device display section of a screen displaying the information of (1). 6. An image information display apparatus for hierarchically displaying plant information and displaying the image as an image, a first display means for fixedly displaying information of an upper hierarchy, and a middle display of an intermediate hierarchy lower than the information of the upper hierarchy. An image information display device, comprising: a second display unit that displays information as a plurality of images and displays the overall status of the plant by arranging the plurality of images. 7. The system according to claim 6, wherein said second display means displays an abnormal state of a system by a system alarm display function added to a screen displaying information of said middle hierarchy. Image information display device. 8. The second display means displays a screen for displaying information of a lower hierarchy lower than the middle hierarchy by a screen selection function added to a device display section of the screen for displaying the information of the middle hierarchy. 8. The image information display device according to claim 6, wherein the image information display device is selected. 9. The second display means displays a detailed device for a predetermined device on a screen for displaying information of a lower layer lower than the middle layer, and displays a device related to the predetermined device. 9. A screen between lower layers is directly selected by a screen selection function added to a device display section of a screen for displaying the information of the lower layer. The image information display device according to claim 1. 10. The second display means displays a detailed device for a predetermined device on a screen for displaying information of a lower layer lower than the middle layer, and displays a device related to the predetermined device. 10. An abnormal state of a device is displayed by an alarm display function added to a device display portion of a screen for displaying information of the lower hierarchy, wherein the information of the lower hierarchy is displayed. Item 10. The image information display device according to Item 1.