JPS621006A - Supervising equipment for operation state of plant - Google Patents

Abstract

PURPOSE:To confirm quickly and accurately an abnormal phenomenon by displaying a specified image corresponding to the abnormality with operation of an alarm display window part showing the abnormality. CONSTITUTION:When an electronic computer 1 detects the abnormality of a plant from the measurement signal S1 given from various measuring instruments, a signal is sent to a speaker 4 for production the alarm tones. Furthermore the computer 1 selects the abnormal type number according to the type of the plant abnormality and selects one of alarm display windows 5a-5n in response to said abnormality type number to turns on or blinks it. An operation switch 6 corresponding to the glowing alarm display window is turned on. Thus the computer 1 displays automatically the image having the relevant number on a CRT display device 3.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a plant operating state monitoring device for monitoring the operating state of a plant, such as an atomic couplant or a chemical plant, to ensure plant safety.

[Technical background of the invention and its problems]

Conventionally, monitoring devices for the operating status of plants such as atomic couplets or chemical plants process measurement signals such as process quantities from various measuring instruments installed in various parts of the plant using electronic computers, etc. to monitor multiple states that indicate the state quantities of the plant. get a signal,
These are indicated by a meter such as a needle type indicator or a recorder.
The system is configured to monitor the operating status of the plant by recording. Additionally, if the above measurement signal exceeds a specific value that indicates an abnormality in the plant, an alarm will be emitted to notify the operator of the abnormality in the plant, and the alarm display window will light up to indicate the content of the alarm. Alternatively, methods such as flashing are adopted to ensure safe driving.

Therefore, in the past, it was necessary to install separate meters and recorders for each type of signal that indicates the operating status of the plant. As the number of meters and recorders increases and the monitoring panel becomes large, operators must monitor a large number of meters and recorders.
There was a problem that the burden on the operator increased.

Therefore, recently, cathode ray tube displays (hereinafter referred to as CRT displays) have been used as indicators to display the operating status in order to downsize monitoring panels and reduce the burden on operators.
A system has been proposed in which multiple types of plant state quantities are switched and displayed at appropriate times using a display. According to this monitoring device using a CRT display, a plurality of types of plant operating status quantities can be displayed on one CRT display, so the monitoring panel can be made smaller.

However, in this monitoring device using a CRT display, multiple screens are assigned to one CRT display, and the screen to be monitored is appropriately selected by keyboard operation.
If an abnormality that is not directly related to a certain screen occurs while the screen is being displayed, there is a problem in that the occurrence of the abnormality cannot be detected from the currently displayed screen.

In addition, even if the occurrence and details of a plant abnormality are known by the generation of an alarm sound and the lighting of the alarm display window, the operator must confirm the details of the abnormality and the details of the screen in order to promptly display the screen corresponding to the abnormality. It is necessary to memorize the response in advance (for example, in the case of an atomic couplant, this alarm type is
There was a problem in that the burden on the operator was too heavy.

[Purpose of the invention]

The present invention has been made based on the above circumstances, and its purpose is to notify operators of the occurrence of an abnormality when an abnormality occurs in a plant, so that the operator can immediately grasp the location of the abnormality and its situation. It is possible to quickly and accurately monitor and take response measures, and it also reduces the burden on operators.
An object of the present invention is to provide a plant operating state monitoring device that is extremely useful for safe plant operation.

[Summary of the invention]

In order to achieve the above object, the present invention provides a plant monitoring device equipped with a plurality of alarm display windows and a CRT display device, in which a plurality of operation switches are provided near the alarm display window portion or the alarm display affected area, The apparatus includes means for selecting a specific alarm by operating the operation switch, and means for displaying a specific image on the CRT display device according to the type of alarm selected by the selection means.

[Embodiments of the invention]

An embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram of a plant operating state monitoring device that is an embodiment of the present invention. In the figure, measurement signals S1 from various measuring instruments (not shown) installed in various parts of the plant are input to input terminals 1a, lb, .
.

Further, the electronic computer 1 is connected to a keyboard 2.

When the display request signal S2 from the keyboard 2 is input, a state signal S3 corresponding to the display request signal S2 is selected from among the plurality of state signals and is supplied to the CRT display 3.

Therefore, the CRT display 3 displays the status signal S3 supplied from the electronic computer 1 as a specific image.

Further, the electronic computer 1 processes status signals from the various measuring instruments mentioned above and also detects abnormalities in the plant. That is, when this computer 1 detects a plant abnormality based on measurement signals S1 from various measuring instruments, a signal is sent to the speaker 4, and the speaker 4 generates an alarm sound.

Furthermore, the computer 1 selects an abnormality type number according to the type of plant abnormality, selects one of the alarm display windows 5a, 5b, . . . , 5n according to the abnormality type number, and displays the selected alarm. A signal for lighting or blinking the display window is generated, and the selected alarm display window is lit or blinked. On the other hand, alarm display windows 5a, 5b, .
..., 5n has corresponding operation switch 6a,
6b, . . . , 6n are provided, so that when the operation switch corresponding to the illuminated alarm display window is input, the signal corresponding to the alarm display window is input to the computer 1 via this operation switch. . Here, this signal corresponds to the content of the abnormality detected by the computer 1, that is, the abnormality type number.

Furthermore, when a signal from the operation switch is input to the computer 1, the image number corresponding to that signal is selected and the CR
The image with the corresponding image number is automatically displayed on the T display.

Note that the above abnormality type numbers are signal input terminals 1a and Ib.

. . . can be obtained by using a memory address number within the computer 1 that temporarily stores various measurement signals input from the lk.

By the way, for the corresponding alarm display window number and the corresponding image number, for example, a correspondence table as shown in FIG. 2 is created in advance, and this is stored in the computer 1, so that when an abnormality occurs, the corresponding alarm display window number is used. and the image number are obtained by searching the alarm display window number table 21 and the image number table 22.

Next, the operation of this embodiment having the above configuration will be explained.

For example, if an abnormal water level drop phenomenon occurs in a nuclear power plant, first the abnormality type table 20
The abnormal number within is selected. Next, the corresponding alarm display window number in the alarm display window number table 21 is selected, and then by operating the operation switch of the alarm display window, the image number corresponding to the corresponding alarm display window number is selected from the image number table 22. Selected. Here, if the abnormality type number is, for example, NO, 2 in FIG. 2, the corresponding alarm display window number and corresponding image number are NO12 and N001, respectively. Therefore, the alarm display window regarding the drop in the reactor water level is No. 2, and the corresponding image number No. 1, which aggregates this information, is displayed on the CRT display.

In this way, in this embodiment, an operation switch is provided in the alarm display window, and by inputting the switch, an image corresponding to the content of the alarm can be displayed on the CRT display, so that the content related to the abnormality can be immediately recognized and countermeasures can be taken. operations can be performed.

In this embodiment, a case has been described in which one alarm occurs, but even if multiple alarms occur, only the image corresponding to the input of the operation switch in the alarm display window will be displayed on the CRT display. Ru.

〔Effect of the invention〕

As explained above, according to the plant operating state monitoring device of the present invention, when an abnormality occurs in the plant, a specific image corresponding to the abnormality is displayed on the CRT display by operating the alarm display window section indicating the abnormality. Since the information can be displayed on the screen, the operator can quickly and reliably confirm the abnormal event.

Therefore, it is possible to provide a plant operating status monitoring device that is extremely useful for safe plant operation.

[Brief explanation of drawings]

FIG. 1 is a block diagram of an embodiment of the present invention, and FIG. 2 is a diagram showing a correspondence table between the abnormality type number, corresponding alarm display window number, and corresponding image number in FIG. 1. 1... Computer 2... Keyboard 3... CRT display 4... Speakers 5a, 5b,..., 5n... Alarm display window 6a
, 6b ,..., 6n... Operating switch agent Patent attorney Noriyuki Chika (1 person) Figure 1

Claims (1)

[Claims] In a plant monitoring device equipped with a plurality of alarm display windows and a CRT display device, a plurality of operation switches are provided at or near the alarm display window, and a specific alarm is selected by operating the operation switch. and the type of alarm selected by this selection means.
1. A plant operating state monitoring device comprising means for displaying a specific image on a T display device.