JPH0535429A - Display screen controller - Google Patents

Abstract

PURPOSE:To easily display a necessary image without any skilled operator and to accurately and speedily monitor operation without using a control board in common. CONSTITUTION:An operator selects one of systems by operating a system selection switch 3. This selection is made as long as the operator has knowledge about a plant to some extent. Then the operator operates an image kind selection switch 4 to select the image to be displayed on a CRT 5 as to the system. The kind of this image is easily selected since the system is already selected and the number of images becomes small. A display control means 1 displays the process state of the system on one kind of image of the CRT 5 with the selection signals from the switches.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display screen control device used for monitoring the operating condition of a nuclear power plant or the like.

[0002]

2. Description of the Related Art In a central supervisory control room such as a nuclear power plant,
A CRT is also provided together with the control panel, and the operator uses both to perform operation and monitoring. However, the indicators, recorders, switches, etc. provided on the control panel are arranged separately for each system, so that the operator does not necessarily use the CRT, but can monitor only by the control panel. Is becoming

Therefore, the functions required for the screen display of the CRT were also mainly intended to display the contents of the instruments in an easy-to-understand manner. As the types of screens used in this case, there are usually “system screen”, “trend screen”, “alarm screen”, “progress display screen” and the like.

The "system screen" is a display of process quantities, equipment operating states, valve open / close states, etc. for each system along with piping instrumentation diagrams. The “trend screen” is a graph in which the tendency of the process amount to change from the past is displayed. The “alarm screen” is a list of process quantities, device states, valve open / close states, etc. in an abnormal state. The “progress display screen” is a display of the progress state, operation state, etc. of the device.

Of the above-mentioned screens, the "system screen" is a separate screen for each system to some extent. However, for convenience, parameters of other related systems are displayed on the same screen, and systems with few display parameters are displayed as other screens. It was integrated with the system and displayed.

On the other hand, "trend screen", "alarm screen",
The "progress display screen" was not specifically classified by system. Therefore, the operator has to find out the parameter to be confirmed from the screen on which the information about all the systems is displayed at the same time, but conventionally it is assumed to be shared with the control panel, so the amount of information displayed on the screen is limited. However, it was not a heavy burden on the operator. Even if the parameters cannot be confirmed on the screen of the CRT, the operator can confirm the instruments and the like on the control panel, so there is no particular hindrance to the monitoring work.

[0007]

As described above, it has been conventionally assumed that both the control panel and the CRT are shared, but in recent years, display parameters have been required due to the development of control technology and the demand for high reliability. Due to the increase in the number and the problem of the installation space required for the control panel and the like, there is a need to operate and monitor the plant only by the CRT.

However, in the screen display of the conventional CRT, the operator has to memorize the screen number corresponding to the information to be confirmed one by one, which significantly increases the burden on the operator. In other words, in the conventional case, the operator could remember the location of the necessary information by associating it with the position on the control panel, so it took no time to check the information, but if only the screen display of the CRT is assumed. If the operator does not know the screen number, or if he / she forgets, the operator will spend a great deal of time until the necessary screen is displayed. Therefore, the method of displaying the screen of the CRT has a problem that only an experienced operator who is familiar with the screen numbers of necessary information to a certain degree can perform accurate and speedy operation / monitoring work. ..

The present invention has been made in view of the above circumstances, and it is possible for an experienced operator to easily display a necessary screen, and to perform accurate and quick operation without sharing a control panel. It is an object of the present invention to provide a display screen control device capable of performing monitoring work.

[0010]

As a means for solving the above-mentioned problems, the present invention provides a display screen control apparatus for displaying process states of a plurality of systems of a plant on a display device with a screen of a predetermined type, System selection switch operated when selecting any one of the above, and screen type selection operated when selecting any one of the screens of the predetermined type after the system selection switch is selected A switch, and a display control means for displaying the process state of one system on the display unit with one type of screen based on each selection signal from the system selection switch and the screen type selection switch. It is what

[0011]

In the above structure, when the operator wants to confirm the necessary information on the display, first, the operator operates the system selection switch to select the system corresponding to the required information. In this case, the operator naturally knows to which system the necessary information belongs, and this selection itself is an easy selection.

Next, the operator decides on what kind of screen the necessary information is to be confirmed, and operates the screen type selection switch to select one of a plurality of types of screens. This selection is also an easy selection, simply selecting the display items desired by the operator for the already selected system.

The display control means controls the display device so that the process state of one system is displayed on one type of screen based on the selection signal from each switch.

[0014]

Embodiments of the present invention will be described below with reference to FIGS. FIG. 1 is a block diagram showing a schematic configuration of this embodiment.

In this figure, the process signal from the plant is sent to the display control means 1 composed of a CPU and also to the main memory 2. Then, the display control means 1 causes the CRT 5 to display the process state of one system of the plant on the CRT 5 on the one type of screen based on the selection signals from the system selection switch 3 and the screen type selection switch 4. Further, since the process information of the plant is stored in the main memory 2, the display control means 1 will later display a screen similar to the above based on the data in the main memory 2.
It can be displayed on RT5.

Next, by the device thus constructed,
The procedure for the operator to display the screen will be described.
First, when the operator selects the screen of the CRT 5, he or she selects a system that is considered to contain necessary information with the system selection switch 3 (step 1 in FIG. 2).
This selection is easy if the operator has some knowledge of the plant without prior knowledge of the screen display method. The operator is assumed to be a person who is sufficiently trained in the operation of the plant, and usually, the operator has sufficient knowledge about the plant.

On the other hand, a nuclear power plant of the same type,
Even if the system configurations are the same, the screen display method of the CRT 5 differs depending on each unit. Therefore, most operators are not familiar with the types of screens displayed on the CRT 5 for each machine, and it takes a certain period of time before the screens can be smoothly selected.

Next, the operator selects the system selection switch 3
After making a selection by, the type of screen to be obtained is selected for the selected system (step 2 in FIG. 2). This selection is made from the four screens shown in FIG. 2, that is, the system screen P ₁ , the trend screen P ₂ , the alarm screen P ₃ , and the progress display screen P ₄ .

As the screen type selection switch 4 used for this selection operation, four push buttons corresponding to four types of screens are used, or a touch screen having four types of screen names displayed on the screen, or the like. use. And
Allow the operation to be completed with one action. In this case, after a certain system is selected once, screens of different types in that system can be selected by one operation. This selection is one of the simplest operations and can be performed without interrupting the thinking of the operator who is driving / monitoring while watching the screen.

Further, unlike the prior art, each screen of the trend screen, the alarm screen, and the progress display screen is created one or more for each system, which facilitates the search by the operator. That is,
Conventionally, for example, even if the number of alarm status signals on the alarm screen is large (for example, 100) and the number of screens becomes large and the search becomes complicated, the signal that the operator should pay attention to is only a part of the signal. Most of it was unnecessary. However, according to the present embodiment, since the alarm screen is created for each system, the number of screens to be searched is very small.

With respect to the trend screen, conventionally, the number of screens is at most about 5 at most, and it is not always necessary to classify each system. However, it is considered that the number will increase to 10 or more in the future, and in that case, classification display for each system will be useful.

FIGS. 3, 4, 5, and 6 are explanatory views showing display examples of a system screen, a trend screen, an alarm screen, and a signal display screen, respectively.

At a certain nuclear power plant, which is scheduled to enter into commercial operation in 1996, the control panel which was conventionally shared is abolished, and the plant is operated and monitored only by the CRT and a very small amount of instruments. It is planned to adopt the configuration. Therefore, it is expected that the information that must be displayed on the CRT will greatly increase in the future.

[0024]

As described above, according to the present invention, a plurality of types of predetermined screens are classified for each system, and the process state of one system is displayed on the display unit with one type of screen. Even a non-experienced operator can easily display necessary screens and can perform accurate and quick operation / monitoring work without sharing a control panel.

[Brief description of drawings]

FIG. 1 is a block diagram showing a schematic configuration of an embodiment of the present invention.

FIG. 2 is a flowchart for explaining the operation of FIG.

FIG. 3 is an explanatory diagram showing an example of a display screen according to the embodiment of the present invention.

FIG. 4 is an explanatory diagram showing an example of a display screen according to the embodiment of the present invention.

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

FIG. 6 is an explanatory diagram showing an example of a display screen according to the embodiment of the present invention.

[Explanation of symbols]

 1 Display control means 3 System selection switch 4 Screen type selection switch 5 Display (CRT)

Claims (1)

Claim: What is claimed is: 1. A display screen control device for displaying a process status of a plurality of systems of a plant on a display device with a screen of a predetermined type. And a screen type selection switch operated when selecting one of the screens of the predetermined type after the system selection switch is selected, the system selection switch and the screen type A display screen control device comprising: display control means for displaying the process state of one system on the display device on one type of screen based on each selection signal from the selection switch.