JPS61226896A - Plant alarm - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a plant alarm system that is capable of intensively monitoring plant alarms and also capable of recognizing and operating individual alarms.

[Technical Background of the Invention] Fig. 5 shows a conventional plant alarm system. Plant signal groups A-1 to A-n, which are composed of a plurality of plant signals, are classified by plant system and provided for each plant system. It is input to the alarm control device 1.

Each of these alarm control devices 1 includes an alarm sound generator 2 capable of emitting high-speed and low-speed alarm sounds, an alarm stop button 3 for inputting an alarm sound stop signal by a plant operator, and an alarm stop button 3 for inputting an alarm confirmation signal. An alarm confirmation button 4 is connected to an alarm reset button 5 for inputting an alarm reset signal 6 Further, an alarm display window 6 is connected in one-to-one correspondence with the plant signal group A input to each alarm control device 1. It consists of

Here, characters are written on each alarm display window 6 so that alarm items can be distinguished, and depending on each state of alarm occurrence, alarm confirmation, alarm normal return, and alarm reset, there are fast flashing, lighting, slow flashing, Operations such as turning off the light can be performed.

When an alarm condition occurs in some of the plant signal group A (
(alarm generation), the alarm control device 1 detects these and flashes the corresponding alarm display window 6 at a high speed, and at the same time causes the alarm sound generator 12 to sound at a high speed to notify the plant that an alarm has occurred.

When the plant operator, aware of the occurrence of this alarm, presses the alarm stop button 3, the alarm control device 1 detects this and stops the alarm sound (alarm stop).

Subsequently, when the plant operator presses the alarm confirmation button 4, the alarm control device 1 detects this and lights up all the alarm display windows 6 that are blinking at high speed (alarm confirmation).

Eventually, some of the alarms that were occurring return to normal (alarm returns to normal), and the alarm control bag! 1 detects this and causes the corresponding alarm display window 6 to blink at a low speed, and at the same time causes the alarm sound generator 2 to sound at a low speed to notify that the plant alarm has returned to normal.

When the plant operator presses the alarm reset button 5, the alarm control device 1 detects this, turns off all the low-speed blinking alarm display windows 6, and stops the low-speed sounding of the alarm sound generator 2. (Alarm reset).

[Problems with the Background Art] However, in the conventional plant alarm device described above, the alarm confirmation and reset operations for plant signals are processed at once for the plant signal group A input to one alarm control bag W1. Therefore, if a large number of plant alarms occur at once, there is a risk that some alarms may be lost.

Further, as the plant becomes larger, the plant system also increases, so not only the number of alarm display windows 6 increases, but also the number of alarm control devices 1 must be added.

As a result, plant control panels have become larger and plant monitoring and control has been centralized, going against the trend of downsizing plant control panels.

Furthermore, since there is no means for keeping a record of the times when alarms are issued and when the system returns to normal, it is impossible to determine the order in which the alarms were issued when multiple alarms occur in succession at approximately the same time.

On the other hand, as shown in FIG. 6, there is also known a plant alarm system that is miniaturized by using a computer 7 and a CBr4. This includes a clock 9 that inputs the plant signal group A to the computer 7 and detects the occurrence of a plant alarm and a return to normalcy, a typewriter 10 that outputs a record of the occurrence of an alarm and a return to normality in text, and a typewriter 10 that outputs a record of the occurrence of an alarm and a return to normality. The plant is equipped with a CBr 4 that outputs a message by switching the color and blinking state of the display characters of alarm items, and an alarm blinking stop button 11 that transmits a signal to the computer 7 to turn on the blinking message on the screen. This makes it possible to downsize the monitoring control panel and to keep records of automatic alarm generation and alarm return to normal status.

However, since this plant alarm device is provided with only one alarm flashing stop button 11 for all plant alarm items, if there are multiple alarm occurrences and alarm return to normal on the screen, one button will be used to stop both alarms. Since both are lit, it is not possible to display individual plant alarm items in an unconfirmed blinking state, while others are in a lit state indicating confirmation.

There was a similar problem with the device mentioned above.

In addition, in this plant alarm device, the alarm items are:
It was sometimes difficult to tell which plant system the alarm belonged to from the text in the message.

Furthermore, since there is a limit to the number of messages that can be displayed on one CBr4, multiple table pages are prepared.

If the message on the screen overflowed, buttons such as page forward and page backward were provided so that the display screen could be switched and the alarm item could be checked, but it is necessary to search on which page a specific alarm item is displayed. It was time consuming.

Furthermore, on this screen display, messages are not displayed for alarm items that are in the alarm recovery state.

In order to check the status of a given alarm item, the user must operate the page forward and page backward buttons page by page, check the message, and then determine that the alarm item is in the alarm recovery state, which is similarly time-consuming. There were such problems.

[Purpose of the Invention] The present invention not only enables centralized monitoring of all plant alarms, but also enables clear recognition of the content and status of each alarm item, and allows alarm confirmation and reset operations to be performed individually for each alarm item. The main purpose is to provide a possible plant alarm system.

[Summary of the Invention] In order to achieve the above object, in the present invention, a touch screen is provided in front of the screen of a display device that displays alarm items on the screen, and a computer is provided with a touch screen in front of the screen of a display device that displays all alarm items on the screen. or a means for enlarging and displaying a part thereof, a means for inputting a request to change the degree of enlargement from a touch screen, and a means for recognizing alarm confirmation/reset operations for individual alarm items from coordinate signals from the touch screen. The present invention is characterized by providing means for reflecting this on the display screen.

[Embodiments of the invention] Hereinafter, the present invention will be explained using embodiments shown in the drawings.

FIG. 1 shows a block diagram of a plant alarm system according to an embodiment of the present invention.

The computer 20 includes a memory 201 that stores alarm data E corresponding to each plant signal group A, a memory 202 that stores screen coordinate data J, a memory 203 that stores enlarged coordinate data Z, and a touch screen input coordinate data file. A memory 204 is provided for storing each.

FIG. 2 is a diagram showing the contents of the memory 201 that stores the alarm data E. As shown in the figure, one alarm data E includes alarm item name data j of the corresponding plant signal group A and all alarm data. Information on display position data i, status determination data e, alarm generation status S, alarm confirmation status t, alarm recovery status U, and alarm reset status V for each alarm item when the item is displayed on a CRT screen is included. remembered.

When the state of any of the plant signal group A to the computer 20 changes, the alarm signal processing unit 205 searches for alarm data E corresponding to the changed plant signal, and uses the state determination data e stored among the corresponding alarm data. By checking the status of the plant alarm signal and the state of the plant alarm signal, it is determined whether the alarm has occurred or the alarm has returned.

When the result of the state determination is that an alarm has occurred, if the alarm reset state V stored in the alarm data memory 201 is set, the alarm reset state V and the alarm return state U are set.
and reset the alarm confirmation state t.

The alarm generation state S is set, the image display processing unit 206 is activated, and the process is completed.

On the other hand, when the alarm reset state V is not set in the alarm data memory 201, the alarm confirmation state t and the alarm recovery state U are reset, the alarm occurrence state S is set, the image display processing unit 206 is activated, and the complete.

Additionally, if the result of the status determination is alarm recovery or normal, and alarm confirmation status t in the alarm data memory 201 is set, the alarm confirmation status t and alarm reset status V are reset, and the alarm recovery status U is set. Then, the image display processing unit 206 is activated and the processing is completed.

On the other hand, when the alarm confirmation state t has been reset, the alarm return state U is set, the alarm reset state V is reset, the image display processing section 206 is activated, and the process is completed.

The image display processing section 206 activated as a result of the alarm signal processing section 205 displays an image as shown in FIG. 3 on the CRT 30. In FIG. 3(a), all alarm items are displayed in a concentrated manner on one screen, and the alarm occurrence status for each plant system can be determined by the display color and blinking state. However, it is impossible to determine the names of the two individual alarm items. Therefore, by enlarging and displaying the rectangular part formed with the P point and the 0 point as both ends of the diagonal line in Figure (a), the screen in Figure (b) can be obtained, and the name of the alarm item can be displayed. It becomes possible to distinguish.

The process of enlarging the screen will be described below.

One display screen may include a centralized alarm monitoring screen K (Fig. 3 (a)) that can monitor the status of all plant alarms, or an enlarged display screen obtained by enlarging a part of the screen (Fig. 3 (b)). )), a request to enlarge the screen, that is, zoom V, and a request to return ' to the intensive alarm monitoring screen K, that is, return U, from the touch screen 40 to the computer 2.
It consists of an area where a guide display for inputting 0 is performed, that is, an operation area N.

Further, each alarm item F can be recognized by displaying the alarm name j obtained from the alarm data E in characters.

When the image display processing unit 206 is activated, the memory 2
The enlarged display data 2 and alarm data E are read from 01 and 203, and the corresponding alarm item F is displayed on the screen excluding the operation area N.

Here, the enlargement display data memory 203 can store an enlargement request, an enlargement index P, and an enlargement index Q, and determines the portion to be enlarged and displayed on the intensive alarm monitoring screen displayed on one screen. Ru.

That is, if the enlargement request is reset, or if the enlargement request is set and enlargement index P and enlargement index Q are not stored, the display position of alarm item F is changed to the alarm item display of alarm data E. is displayed on the centralized alarm monitoring screen based on the position data i.

On the other hand, if an enlargement request is set and an enlargement index P and an enlargement index Q are stored, '' is displayed on the enlarged display screen of the CRT 30 based on the coordinate data of P and Q.

In addition, the alarm display item F has the display color and blinking state set in the alarm state data (8y i tu,
v), blinks in red (when alarm generation status S is set), lights up in red (when alarm confirmation status t is set), and blinks in green (when alarm return status U is set). , when the alarm generation status S is reset), lights up in green (when the alarm reset status V is set)
The state is changed and displayed.

This kind of screen display allows you to understand the status of alarm occurrences,
In particular, on the centralized alarm screen K, plant alarm monitoring can be performed in the same manner as when viewing the alarm display window of a conventional plant alarm device from a distance.

Furthermore, the same state as when approaching the alarm display window of a conventional plant alarm system is realized by '' on the enlarged display screen.

On the other hand, when a plant operator performs a touch operation on any CRT display image and requests to enlarge the image, restore image enlargement, or confirm/reset an alarm for an alarm item, touch the input coordinate data on the touch screen. The coordinate signal transmitted from the screen is stored, and then the content of the plant operator's request is determined by the touch screen input determination processing unit 207.

If the touch screen input coordinate data I matches the coordinates at which return U is displayed on the screen of the CRT 30, the touch screen input determination processing unit 207 clears all data Z stored in the enlarged display data memory 203. The image display processing unit 206 is activated, the touch screen input coordinate data is cleared, and the process is ended.

As a result, the display screen of the CRT30 is the central alarm monitoring screen K.
can be switched to

If the touch screen distance coordinate data matches the coordinates displaying the zoom V on the screen of the CRT 30, the touch screen input determination processing unit 207 sets an enlargement request in the enlargement display data memory 203 and displays the touch screen input. Clear the coordinate data I, and add the enlargement index P and enlargement finger 411 to the touch screen input coordinate data E.
Each time Q is input, a new expansion index P' and expansion index Q are added.
' is calculated and the enlarged display data 2 is updated.

In this process, when the coordinate signal of the touch screen 40 at the position where the return U is displayed is input, the above-described process when the return U is input can be executed.

After the enlargement indicators P and Q are stored, the touch screen input determination processing unit 207 starts the image display processing unit 206,
Clear all touch screen input coordinate data and complete the process.

Next, the touch screen input coordinate data is
0, the touch screen input determination processing unit 207 determines that this is an alarm confirmation for alarm item F or an alarm reset operation request. reads the touch screen input coordinate data I and the enlarged display data 2, and calculates the physical coordinates of the touch screen 40 by C.
Convert to logical coordinates of the screen displayed on RT30.

Here, touch screen input coordinate data I is CRT30
This coordinate data is based on the physical size of the touch screen 40, but is converted into logical screen coordinate data J by calculation, and becomes the same coordinate system as the alarm item display position data i included in the alarm data E. Furthermore, the touch screen input determination processing unit 207 stores the screen coordinates obtained as a result of the calculation in the screen coordinate data memory 202, clears the touch screen input coordinate data, and activates the alarm item processing unit 208 to complete the process.

When activated, the alarm item processing unit 208 searches out the corresponding alarm data E from the screen coordinate data J.

Clear the screen coordinate data J and save the alarm data memory 20.
The following processing is performed according to the alarm state stored in 1.

When the alarm occurrence state S is set and the alarm return state U is not set, the alarm occurrence state S and the alarm reset state V are reset, and the alarm confirmation state t is set;
The image display processing unit 206 is activated and the processing is completed.

When the alarm occurrence state S and the alarm return state U are set, the alarm occurrence state S, the alarm, the confirmation state t, and the alarm reset state V are reset, and the one-image display processing unit 206 is started;
Complete the process.

If the alarm occurrence state S is reset and the alarm return state U is set, the alarm confirmation state t and the alarm return state U are reset, and the alarm reset state V is set.
The image display processing unit 206 is activated.

Complete the process.

When both the alarm generation state S and the alarm recovery state U are reset, and when the corresponding alarm item F is not found, the process is completed without executing any process.

The above-described alarm item processing unit 208 determines whether the operation for each alarm item appearing in the image is an alarm confirmation request, an alarm reset request, or an alarm reset request, depending on the alarm state before the operation. Also,
A series of alarm recognition operations performed by a plant operator, such as a request for alarm confirmation after an alarm recovery state, can be reflected on the screen display.

In the above embodiment, an example using a CRT 30 was shown, but the present invention is not limited to this, and it goes without saying that a liquid crystal dot type display device or the like may be used.

In addition, by configuring the plant alarm system to include multiple sets of CR7 display devices with touch screens that can display enlarged screens, even if one of the touch screens 40 or CRT 30 fails, the other normal set Not only can plant alarms be confirmed and reset using the touch screen 40 and CRT 30, but also alarm items can be classified for each system of the plant and alarm notifications can be sent to each CRT 30.

In this way, the enlarged display data memory, the touch screen input coordinate data memory, and the screen coordinate data memory,
By preparing an alarm data memory that corresponds one-to-one with each plant alarm signal, and connecting a CRT and touch screen that can be enlarged and displayed to a computer that has means for referencing and updating data in each memory, and controlling the following: Effects like this can be obtained.

(1) The occurrence status of all plant alarms can be monitored centrally on a single CRT screen.

(2) By enlarging and displaying the portion of the alarm monitoring screen, it is possible to monitor the alarm occurrence, time of return to normal, etc., and alarm status.

(3) By using a touch screen, you can confirm the alarm after it occurs and reset the alarm after the alarm returns to normal for each alarm item without having to install many push leads etc.
It can be performed directly on that image.

(4) Changes in alarm status such as alarm occurrence, alarm confirmation, alarm recovery, and alarm reset for each alarm item and their times can be kept as records one by one by being equipped with a typewriter.

(5) The alarm item display portion of the alarm notification device can be downsized to the size of a CRT display screen, and the plant control panel can be downsized.

FIG. 4 shows another embodiment of the present invention, in which two computers 20A and 20B and switching devices 50A to SOC are provided, so that even if one of the computers fails, the other computer can continue to operate. This allows for plant alarm notifications to be executed.

That is, each computer 20A, 20B has a function to monitor the normality of the other computers 20B, 20A, and if both computers are normal, one of the computers, for example 20A, has a plant alarm notification function. When carrying out , the other computer 20B uses the operation touch screen input coordinate data memory 204 of the one computer 2QA,
Screen coordinate data memory 202 and alarm data memory 20
1. Data transmission processing and storage processing are performed so that the contents of each file are the same.

Here, if the computer 20A that was performing the plant alarm notification function first fails, the other computer 20B detects this and inputs from the touch screen 40 and the plant signal group A to the other computer 20B. The switching devices 50A and 50C are switched to connect to the same side. Also, C
The operation output signal to RT30 is connected to the other computer 20B by the switching operation of the switching device 50B, and this computer 2
The plant alarm notification function continues to be executed by 0B.

In one or more embodiments, an example using a CRT 30 capable of enlarged display is shown, but a CRT 30 which cannot be enlarged
Also, several display screens are prepared, and one of them has the same monitoring function as the central alarm monitoring screen.
By switching the screen, alarm confirmation and reset operations for individual alarm items F are possible.

In this case, when the touch screen input coordinate data of the area corresponding to the display position of the plant system name display shown in Fig. 3 is obtained, the screen of alarm item group F belonging to the corresponding plant system is redisplayed. As a result, a CRT display equivalent to ' can be obtained on the enlarged display screen. That is, this adds a new screen number data storage memory to the alarm data memory 201 for storing in advance which screen number an alarm item belongs to, while replacing the enlarged display data memory 203 with the current screen number data memory. Prepare a display screen number memory that stores the screen number being displayed.

In addition, the calculation for determining the alarm item F in the image display processing unit 206 is replaced with one that can be calculated from the alarm data E and the 1-display screen number memory, and the touch screen input judgment processing unit 207 starts the screen number judgment process and the alarm item process. Add possible processing. Furthermore.

This can be realized by deleting the screen coordinate data J and replacing the alarm item processing section 208 with arithmetic processing that can index the alarm data E from the touch screen input coordinate data E and the display screen number memory.

Further, as for the processing of the computer 20, a typewriter output processing section is provided, and an alarm data index processing section and an alarm item processing section 208 detect and operate each state of alarm occurrence, alarm recovery, alarm confirmation, and alarm reset. It is also possible to record and output what has been done together with each time information.

In addition, since a computer is usually equipped with a clock device, the alarm data memory 201 described in the above embodiment has the following information:
Add memory to store the alarm occurrence time, alarm confirmation time, alarm recovery time, and alarm reset time, and display processing together with the alarm item name j in the display of alarm item F on the CR7 screen. If the image display processing unit 206 is changed to do this, it is also possible to confirm the above four times by looking at the display data. In the embodiment described above, the alarm generation is prioritized and reflected in the image and notified, but the reversing method and display processing method of each piece of information related to the alarm state stored in the alarm data is changed depending on the plant alarm management method. It is also possible to do so.

In addition, the plant alarm system is equipped with an alarm sound generator that produces two sounds that can notify the occurrence of an alarm and the return of an alarm, and the processing for operating and controlling this equipment and the storage of information regarding the type of alarm sound required are newly added. This allows the alarm signal processing section 205 to set the content of information storage regarding the type of alarm sound.

Furthermore, when one alarm stop request is input from the touch screen to the touch screen input determination processing unit 207, the information storage regarding the type of alarm sound can be reset in the priority order of the alarm generation sound and the alarm return sound. Make it. By doing so, an effective plant alarm reporting function can be added.

[Effects of the Invention] As explained above, according to the present invention, the alarm display screen can be enlarged to an appropriate size, and each alarm item can be checked and reset individually. It becomes possible to clearly recognize the contents and status of alarm items, and it becomes possible to respond more accurately and quickly to plant abnormalities.

[Brief explanation of drawings]

FIG. 1 is a block configuration diagram of a plant alarm system according to an embodiment of the present invention, FIG. 2 is an explanatory diagram showing an example of a data set of each alarm item in FIG. 1 and its information content, and FIG. 1st
This is a display screen diagram displayed on the CR7 display device shown in the figure.
Fig. 4 is a block diagram of a plant alarm system according to another embodiment of the present invention, and Fig. 5 is a diagram showing a centralized alarm monitoring screen. FIG. 6 is a block diagram of a conventional plant alarm system using a computer and a CRT. 20.20A, 20B...Calculator, 30...CRT
, 40...touch screen, 50A, 50B
, 50C... switching device, 201, 202, 203° 204... memory, 205... alarm signal processing unit, 2
06... Image display processing section, 207... Touch screen input determination processing section, 208... Alarm item processing section. Agent Patent Attorney Crest 1) Makoto ゛), /' Figure 2 Figure 3 N N Figure 4 0B Figure 5 Figure 6

Claims (2)

[Claims] (1) In a plant alarm device that inputs signals from each part of the plant to a computer to determine whether an alarm has occurred, and displays the alarm status from the computer to a display device, the computer is configured to input each alarm when the plant alarm occurs. A plant alarm system comprising: means for collectively displaying items on the display device; and means for enlarging and displaying a desired portion of the collective display screen to a desired size in response to a request from an operator. (2) In claim 1, a touch screen is provided in front of the screen of the display device, and the computer further includes means for inputting a request to change the degree of enlargement from the touch screen; 1. A plant alarm device comprising means for recognizing alarm confirmation/reset operations for individual alarm items from coordinate signals from a touch screen and reflecting the same on a display screen.