JP3964568B2 - Image information display method and apparatus - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a plant image information display method and apparatus, and more particularly to an image information display method and apparatus suitable for a large plant such as a nuclear power plant.
[0002]
[Prior art]
Plant control panels used in nuclear power plants, etc., initially began with hard-wired monitoring and operation equipment such as recorders and indicators, knobs and dials, and now CRTs (cathodelays) in accordance with rapid advances in information technology and networks HSI (Human System Interface), which mainly uses tubes, has been introduced. For this reason, in the information processing of the operator, the “recognition” work has increased so much that it cannot be compared with before.
[0003]
Along with such changes in work forms and environmental changes, the importance of system design has shifted from the conventional reduction of physical load to the appropriate distribution of mental load.
[0004]
In particular, an information display screen of a large-scale plant such as a nuclear power plant has an enormous amount such as a system diagram, an alarm, and a parameter trend, and has a hierarchical structure in many cases.
[0005]
Therefore, the operator must be familiar with the screen content, screen configuration, or hierarchical structure.
[0006]
[Problems to be solved by the invention]
However, if the operator is unfamiliar with or forgets about the screen content, screen structure or hierarchical structure, the mental burden on the operator until reaching the target information is large, and the target information It may take a long time to reach
[0007]
And in order to make the screen development method such as CRT more appropriate information presentation form, it is necessary to grasp how the operator is currently processing the task and to derive the information presentation form based on ergonomics. It was.
[0008]
Therefore, an object of the present invention is to provide an image information display method based on an information development method adapted to human cognitive characteristics from an ergonomic point of view in a plant operation based on CRT or the like as an information presentation / monitoring medium, and To provide an apparatus.
[0009]
[Means for Solving the Problems]
In a reference example of the present invention , in the image information display method for displaying plant information in a hierarchical manner, the information of the upper hierarchy is fixedly displayed and the information of the lower middle hierarchy than the information of the upper hierarchy is displayed. A plurality of images are displayed, and the entire state of the plant is displayed by arranging the plurality of images.
[0010]
Further, the abnormal state of the system may be displayed by a system alarm display function added to the screen displaying the information on the middle hierarchy.
[0011]
In addition, a screen for displaying lower hierarchy information lower than the middle hierarchy may be selected by a screen selection function added to the device display section of the screen for displaying the middle hierarchy information.
[0012]
In addition, on the screen that displays the information of the lower hierarchy lower than the middle hierarchy, the detailed apparatus display is performed for the predetermined apparatus and the apparatus related to the predetermined apparatus is also displayed, and the information of the lower hierarchy is displayed. A screen between lower layers may be directly selected by a screen selection function added to the device display section of the screen to be displayed.
[0013]
In addition, on the screen that displays the information of the lower hierarchy lower than the middle hierarchy, the detailed apparatus display is performed for the predetermined apparatus and the apparatus related to the predetermined apparatus is also displayed, and the information of the lower hierarchy is displayed. You may make it display the abnormal state of an apparatus with the alarm display function added to the apparatus display part of the screen to display.
[0014]
The present invention relates to an image information display device that displays plant information in layers and displays images, in order to grasp the entire plant image corresponding to an operator mental model that incorporates a temporal element into the operator's thought process. plant overall level of the upper layer, one coherent system level intermediate hierarchy as system level, divided the machine level as details of the system to 3 hierarchy to lower hierarchy, fixing information of the upper level hierarchy a first display means for displaying the information of the previous SL in position hierarchy displayed in multiple images, and a second display means for displaying the entire status of the plant by arranging the plurality of images, the second The display means is characterized in that the screen for displaying the information in the lower hierarchy is selected by a screen selection function added to the device display section of the screen for displaying the information in the middle hierarchy .
[0015]
The second display means may display an abnormal state of the system by a system alarm display function added to a screen for displaying the information on the middle hierarchy.
[0017]
Further, the second display means, the screen displays the information before Symbol subordinate hierarchy, also displays the devices related to the predetermined device performs a detailed device display for a given instrument, the lower layer A screen between lower layers may be directly selected by a screen selection function added to the device display section of the screen for displaying information.
[0018]
Further, the second display means, the screen displays the information before Symbol subordinate hierarchy, also displays the devices related to the predetermined device performs a detailed device display for a given instrument, the lower layer You may make it display the abnormal state of an apparatus with the alarm display function added to the apparatus display part of the screen which displays information.
[0019]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an image information display method and apparatus according to an embodiment of the present invention will be described with reference to the drawings. In addition, this embodiment shows the example which applied this invention to the nuclear power plant.
[0020]
Fig. 1 shows the results of a task analysis performed during simulator training for plant operators in response to abnormalities and examination of the operator's mental model.
[0021]
As shown in FIG. 1, the operator's thought process is, first, the whole plant level for grasping the whole picture of the plant, second, the system level as one integrated system, third, It was found that it consists of a three-level structure at the equipment level as details of the system. In other words, the operator's thinking process changes between the entire plant and the equipment section.
[0022]
Taking a boiling water nuclear power plant (BWR) as an example, immediately after the reactor scram (emergency shutdown), the interlock associated with the scram is activated, and the parameters of the reactor pressure and the reactor water level change. At this time, monitoring and confirmation at the plant level is the main. If there is no abnormality, the fluctuation parameter converges in about 2 minutes.
[0023]
From this point of time, the operator's thought shifts to the operation of stopping unnecessary devices and the starting operation of necessary devices in order to confirm the system state and the device state and stop the plant.
[0024]
That is, the mental model of the operator changes immediately after the scrum and when a certain amount of time has passed since the scrum. In FIG. 1, the mental model of the operator is hierarchized, and the time factor is taken into consideration.
[0025]
FIG. 1 represents the basic correspondence at the time of scrum, and the area of each layer indicates the amount of information processing.
[0026]
The information processing amount of each hierarchy changes with time t. That is, immediately after the scrum (t = 0), there is a large amount of information processing at the whole plant level, and it consists of parameter confirmation and operation confirmation such as automatic start / stop of equipment.
[0027]
When a little time has passed since the scrum, the previously confirmed scrum state, auto-start device and auto-stop device have almost no reversibility, so there is less need for re-check, and parameter fluctuations also settle down. The frequency of confirmation is also reduced, and the amount of information processing is reduced.
[0028]
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.
[0029]
For example, steam that has finished work at the turbine as a system level is cooled by a condenser and returned to water, but there is a feed condensate system (not shown) as a supply line to this nuclear reactor. The status of this feed and condensate system is confirmed.
[0030]
In addition, at the equipment level, in order to grasp the supply and condensate system in detail, it is necessary to confirm the opening degree of the minimum flow valve of the automatic start pump and the operation status of the valve of the automatic stop pump.
[0031]
When the abnormal event converges (when n = 0 in FIG. 1), the information processing and the operation amount at the system level and the equipment level decrease as in the plant level, and the ground state is obtained.
[0032]
The example shown in FIG. 1 is a basic operator task response situation at the time of reactor scram, but an operator task analysis was performed for multiple failures such as further abnormalities occurring at the time of reactor scram. .
[0033]
Here, multiple faults can be considered as interrupt tasks.
[0034]
That is, at the plant level, it is assumed that an interrupt task that has priority over the routine response partially occurs, and the response is implemented.
[0035]
On the other hand, at the system level and the device level, tasks such as system monitoring, device level alarm confirmation, parameter trend confirmation, response operation, and feedback effect confirmation occur depending on the contents of the interrupt task and the urgency level.
[0036]
Thus, if the other event response added from the middle of the scrum converges, the original scrum response is restored.
[0037]
Figure 1 shows the operator's accident response model. The operator can collect information and operate the equipment via an interface such as a CRT, such as monitoring the entire plant, checking the status of the system, and responding at the equipment level. Is going.
[0038]
There is no problem as long as these enormous screens are systematically arranged and a screen development method suitable for the operator's image is provided. However, conventional image information display methods often depend on the learning and proficiency of the operator for the existence of a huge screen and the information content presented on the screen.
[0039]
In addition, in the conventional image information display method, there are many procedures for screen development such as replacing the currently displayed screen with another screen, and there are many burdens on the operator.
[0040]
On the other hand, in this embodiment, an information development method based on a mental model (FIG. 1) obtained from an operator task analysis is employed, which will be described with reference to FIG.
[0041]
FIG. 2 is a schematic configuration diagram illustrating the image information display apparatus according to the present embodiment.
[0042]
Various process signals 201 indicating the plant state are transmitted from the plant 103. The process signal 201 is sent to the process signal terminal board 104.
[0043]
The process signal 202 from the process signal terminal board 104 is processed as a meter / instrument or by a computer, and plant operation information is provided by a display medium such as a CRT. This series of signal flows and information processing methods are not different from conventional ones.
[0044]
With this information development method, the plant display panel (first display means) 101 displays information corresponding to the entire plant shown in FIG. On the other hand, a plurality of individual image information presentation devices (second display means) 102a to 102n made of CRT or the like have a function of providing system and device information in FIG.
[0045]
The individual image information presentation devices 102a to 102n receive and display the image data signal 204 by the image data editing device 106. Further, when the individual image information presentation devices 102 a to 102 n send a signal 204 requesting specific data to the image data editing device 106, the image data editing device 106 sends back the image data.
[0046]
The contents related to the individual image information presentation devices 102a to 102n are used in recent plants and do not require a new method.
[0047]
The plant display panel 101 always presents certain information adapted to the state in the operation phase of the plant startup, reactor scram, or the like.
[0048]
The plant display board 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 the process signal by the process signal converter 105 and displaying the edited data signal 203.
[0049]
The plant display panel 101 is responsible for displaying the upper hierarchy (whole plant) of FIG. 1 showing the mental model, so that the operator can achieve the objective by performing information operations on the middle hierarchy (system) and the lower hierarchy (equipment). I can do things.
[0050]
As described above, the individual image information presentation devices 102a to 102n present the information of the middle hierarchy and the lower hierarchy. The information content displayed here will be described below.
[0051]
Since the information display on the plant display panel 101 consists of a physically limited space portion, information on a large-scale plant cannot be provided in detail and is limited to main information. Therefore, more detailed information is acquired by the individual image information presentation devices 102a to 102n. The display information serving as a reference for the individual image information presentation devices 102a to 102n consists of a middle hierarchy (system). That is, information is presented to each individual image information presentation device 102a to 102n in units of systems.
[0052]
Thus, by presenting the information side by side for each system, the plant state can be expressed in a closed loop, and an image display form suitable for the operator's image is possible.
[0053]
FIG. 3 shows a nuclear reactor system as a display example of the middle hierarchy in the image information display device in the BWR power plant. As the middle level, an emergency core cooling system, a condensate / water supply system, a turbine generator system, a power supply system, etc. can be assigned.
[0054]
As described above, by displaying the middle hierarchy screen in parallel, the system information of the plant can be grasped.
[0055]
The middle hierarchy screen shown in the example of FIG. 3 has the following characteristics.
• Explicit and implicit indications The indications directly related to the reactor system in Figure 3 are explicitly emphasized. For example, the character of MSIV (main steam isolation valve) 301 is enlarged or the line representing the piping is thickened.
[0056]
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 piping is made thinner.
By using the explicit display and the implicit display in this manner, the flow of the system can be understood smoothly and the operator can easily recognize.
[0057]
System alarm display function In FIG. 3, MSIV 301, FWS 302, and the like collectively refer to systems, but when an alarm occurs in these systems, the fact that an alarm has occurred is notified by color or flicker.
[0058]
Therefore, the operator can easily grasp the abnormality of the system by monitoring the individual image information presentation devices 102a to 102n side by side.
[0059]
It is also possible to easily grasp not only the abnormality of the system shown explicitly but also the abnormality of the related system shown implicitly.
[0060]
This means that the propagation of an abnormality can be easily grasped.
In the past, due to the operator's thoughts, there was a possibility of overlooking unless information was taken out.
[0061]
Screen switching (selection) function The individual image information presentation devices 102a to 102n present a system screen that is normally in the middle hierarchy, but when the operator needs a more detailed device level (lower hierarchy) image. The lower hierarchy screen can be called directly from the middle hierarchy screen.
[0062]
For example, the MSIV (main steam isolation system) 301 is touch-operated (mouse operation or light pen may be used) on the middle level screen of FIG. 3 to display a detailed screen (Fig. 3) which is an MSIV device screen (lower level screen). (Not shown) is displayed.
[0063]
In FIG. 3, by touching the MSIV 301 and specifying the type of screen, the image data editing apparatus 106 in FIG. 2 recognizes the information screen to be presented, edits data according to the screen, and presents individual image information. The MSIV 301 of the devices 102a to 102n is replaced with the designated screen.
[0064]
At this time, the image data editing device 106 selects an image to be output from the lower layer screen information shown in FIGS. 4 (a) and 4 (b).
[0065]
That is, by selecting MSIV 301 on the reactor system screen in FIG. 3, a certain range of XY coordinates (X1 to X2, Y1 to Y2) is recognized, and it is recognized that the MSIV device level screen has been selected. Further, by receiving n as the image type, the image is edited and the image data signal 204 is transmitted to the individual image information presentation devices 102a to 102n in FIG.
[0066]
The screen type data shown in FIGS. 4A and 4B can be obtained by assigning specific areas of the CRTs of the individual image information presentation apparatuses 102a to 102n shown in FIG.
[0067]
The device level (lower hierarchy) screen (not shown), 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 character is enlarged or the line representing the pipe is thickened. On the other hand, a display that is not directly related to MSIV is implicitly shown by making a character smaller or making a line representing a pipe thinner.
[0068]
By using the explicit display and the implicit display in this way, the flow of equipment can be understood smoothly, and the operator can easily understand.
[0069]
Also in the device level diagram, the alarm display notifies the above-mentioned system alarm display by color or flicker.
[0070]
In the device level diagram, by touching the device (for example, 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.
[0071]
To display the upper screen of the device from the device level screen, the user can return to the system screen by touching a specific area.
[0072]
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 operator, which originally consists of three layers, displays the information of substantially two layers by fixing and displaying the information of the upper layer It can be done by deployment.
[0073]
Moreover, by displaying a plurality of two-level screens in parallel, the plant system can be displayed along a continuous flow.
[0074]
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 a required screen with a minimum operation.
[0075]
【The invention's effect】
As described above, according to the present invention, image information based on an information development method adapted to human cognitive characteristics from an ergonomic point of view in a plant operation based on CRT or the like as an information presentation / monitoring medium. A display method and apparatus can be provided.
[Brief description of the drawings]
FIG. 1 is a diagram showing an operator corresponding model as a result of examining an operator mental model;
FIG. 2 is a schematic configuration diagram showing an image information display device for a BWR power plant according to an embodiment of the present invention.
3 is a diagram showing a nuclear reactor system as a display example of a middle hierarchy in the image information display device for the BWR power plant shown in 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. FIG.
[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 converter 201, 202 Process signal 203 Edit data signal 204 Image data signal

Claims (4)

In the image information display device that displays the plant information in layers and images , the whole plant level for grasping the whole plant image corresponding to the operator mental model that incorporates the time factor into the operator's thinking process the upper layer, divided lineage level as one cohesive system level to 3 hierarchical structure that middle order, the equipment level of the details of the system and lower layer, the first for securing display the information of the upper level hierarchy display means, the information before Symbol in position hierarchy displayed in multiple images, and a second display means for displaying the entire status of the plant by arranging the plurality of images, the second display means, image information display instrumentation, characterized in that to choose a screen for displaying information of the lower layer by screen selection function added to the device display of a screen for displaying information of the intermediate hierarchy . The image information display apparatus according to claim 1, wherein the second display means displays an abnormal state of the system by a system alarm display function added to a screen for displaying the information on the middle hierarchy. The second display means, the screen displays the information before Symbol subordinate hierarchy, also displays the devices related to the predetermined device performs a detailed device display for a given device, the information of the lower layer 3. The image information display device according to claim 1, wherein a screen between lower layers is directly selected by a screen selection function added to a device display section of a screen to be displayed. The second display means, the screen displays the information before Symbol subordinate hierarchy, also displays the devices related to the predetermined device performs a detailed device display for a given device, the information of the lower layer image information display apparatus according to any one of claims 1 to 3, characterized in that so as to display the abnormal state of the apparatus by the alarm display function is added to the device display of the screen to be displayed.

Images