JPH07225888A - Alarm display device - Google Patents

Abstract

PURPOSE:To deal with the change of an alarm item just by the change of software by constructing an alarm display device prepared in the central control room of a plant with plural sheets of liquid crystal panels. CONSTITUTION:An operating board 3 contained in the central control room of a plant is provided with an alarm window serving as a liquid crystal panel type alarm display device 1 consisting of liquid crystal panels. Meanwhile an alarm display device 2 receives the alarm factor contacts 4 which are detected by the equipment placed at the work site of the plant and other devices and displays these contacts 4 on the device 1. When the faults occurred at various equipments of the plant, the contacts 4 are inputted to the device 2 from the work site. The device 2 displays the proper information on the corresponding liquid crystal panel and also produces an alarm by a buzzer. Furthermore the color of the liquid crystal panel is changed according to the degrees of alarmed dangers. For instance, a serious alarm that requires the stop of the plant operation is shown in red and an alarm that arouses the attention of an operator and requires the continuous monitoring is shown yellow, etc.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an alarm display device provided in a central control room of a plant, and an alarm display device for outputting an alarm display.

[0002]

2. Description of the Related Art Conventionally, a central control room of a plant is provided with a lamp / LED type alarm indicator, and when an abnormality occurs in various equipment of the plant, the name of the corresponding alarm item is marked. The small window of the display is blinking or lit and the buzzer notifies the operator of the abnormality.

[0003]

DISCLOSURE OF THE INVENTION In the prior art,
When the alarm display items are changed or added, it is necessary to replace each marking plate of the alarm display and change / add the wiring of the internal circuit. It is a planning burden.

Further, in the conventional alarm display section, since the size of each window is small, it is possible to discriminate only from a relatively short distance in the central control room, and the means of warning report are blinking / lighting of the lamp and buzzer. Therefore, when a large number of alarms are generated at the same time, it is inconvenient that the important alarm items cannot be immediately judged and the operator cannot respond quickly.

The alarm display is of a liquid crystal panel type, and even when the alarm items are changed, it can be dealt with only by changing the software.
This will shorten the modification process such as regular inspection,
As a result, it contributes to the efficient operation of the plant.

Further, by adopting a liquid crystal panel type as the alarm display, effective alarm display such as color change display, large screen display, character information display, image information display, process value trend display, etc. is realized, and operation is performed. We will provide more friendly alerts to employees and contribute to safe plant operation.

[0007]

[Means for Solving the Problems] To achieve the above object,
The present invention is configured as shown in FIG. That is, while the alarm window provided on the operation panel 3 in the central control room of the plant is the liquid crystal panel type alarm display 1 composed of a liquid crystal panel,
An alarm display device 2 for displaying on the liquid crystal panel 1 upon receiving an alarm-causing contact 4 detected from a plant field device or various devices is installed.

[0008]

When an abnormality occurs in various equipment of the plant, the alarm-causing contact 4 is input from the site to the alarm display device 2, and the alarm display device 2 displays appropriate information on the corresponding liquid crystal display panel 1. At the same time, a buzzer alerts the operator.

Further, when the alarm display items are changed due to the equipment update / addition of the plant or the like, the liquid crystal panel type alarm display 1 is simply changed by changing the software of the alarm display device 2.
You can change the content displayed on.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention, as shown in FIG. 1, uses a liquid crystal panel type alarm display device 1 and an alarm display device 2 to provide a warning when an abnormality occurs in various equipment of a plant. In the display, by using a method as shown in the following embodiment, it is possible to provide a more effective alarm reporting means to the operator.

FIG. 2 shows a first display example of color change display.
Depending on the danger level of the generated alarm, a serious alarm that requires the plant to be stopped is red, an alarm that calls attention to the operator and should be continuously monitored is yellow, and a simple status display is meant. Changes the color of the liquid crystal panel, such as green.

With this display method, when an alarm is issued, it is possible to see at a glance how important the alarm is, and it is possible to reduce the mental burden on the operator. In addition, according to this display method, one place where the conventional lamp / LED type display window is provided with different windows for alarm items in which one monitoring target has a plurality of alarm limit values Can be expressed in.

FIG. 3 shows a second display example of the blinking display.
By blinking the liquid crystal panel when an alarm is issued, it is possible to clearly notify the operator of the alarm item that has occurred. or,
By changing the blinking speed according to the danger level of the alarm that has occurred, it becomes possible to know at a glance how important the alarm is when an alarm is issued, and the mental burden on the operator can be reduced. Can be reduced.

FIG. 4 shows a third display example of the large screen display. Multiple liquid crystal panels are regarded as one large screen, and corresponding alarm items are enlarged and displayed in large letters when an alarm occurs.

With this display method, it is possible to further emphasize the alarm items that have occurred and notify the operator. FIG. 5 shows a fourth display example of text display. Character information is displayed on a plurality of liquid crystal panels as a display area.

By realizing this display method, as shown in FIG. 6, a separately installed alarm guidance device 7 is combined with the liquid crystal type alarm display device 2 to display operation-related guidance corresponding to each alarm item. This makes it possible to significantly reduce the burden on the operator when an alarm is issued, and also improve the reliability of plant operation.

Further, as shown in FIG. 7, by combining an external information transmitting device 6 separately installed with the liquid crystal type alarm display device 2, in the state where no alarm is issued, contact information and news in the plant Etc. can be displayed, communication between the central control room and the outside can be improved, and a relaxing effect can be provided to the operator during normal operation.

FIG. 8 shows a fifth display example of image display.
As shown in FIG. 9, an image information processing device 7 is provided inside the alarm display device 2, and a commercial TV video signal 8, a monitoring computer CRT image signal 9, and an ITV monitor video signal 10 are input to obtain a plurality of images. The image information and the like related to the generated alarm item is displayed on the liquid crystal panel as the display area.

By using this display method, it is possible to be useful in judging the contents of the operation correspondence of the operator, for example, by immediately monitoring the image of the site where the alarm is generated. Further, when no alarm is issued, it can be used as an effective information display medium for an operator, such as checking a weather forecast or the like from a commercial TV image as information on plant operation.

Next, a sixth embodiment of process value trend display will be described. As shown in FIG. 10, the sensor 11
The process value of the plant detected by is input to the liquid crystal alarm display device 2 as an appropriate analog signal through the converter 12. The liquid crystal display device 2 displays the inputted analog signal as a trend on a plurality of liquid crystal panels as a display area when an operator arbitrarily requests it or when an alarm is issued.

FIG. 11 shows a sixth display example of the trend display of process values. With this display method, it is possible to newly use the alarm indicator for monitoring the process value of the plant. In addition, when an alarm is issued, it is possible to simultaneously monitor the trend of whether the current value of the alarm item that has occurred is in a recovery state or in a deteriorated state, and the monitoring function can be greatly improved.

It should be noted that, in FIG. 10, the processing computer for inputting analog signals, the processing for displaying the trend, etc. are performed by the computer for monitoring the plant, and the liquid crystal type alarm display device 2 is limited to the processing for the liquid crystal display. Is also possible.

A seventh embodiment of the logical processing display will be described. In the seventh embodiment, as shown in FIG. 12, a logic processing circuit 13 is provided inside the alarm display device 2.
When a large number of alarms are generated at the same time, logical processing displays such as displaying the one with high importance with priority, selecting and displaying the first occurrence item, and excluding and displaying the chain occurrence item are displayed. It is possible.

With this display method, when a large number of alarms are issued at the same time, it is possible to prevent a situation in which the operator cannot immediately determine what is an important alarm item and the operator cannot respond quickly.

Next, an eighth embodiment of the transmission function will be described. In this eighth embodiment, as shown in FIG. 13, a transmission interface device 14 is provided inside the alarm display device 2. A data transmission connection is made from the transmission interface device 14 to the plant monitoring computer 16 and the control device 17 via the transmission line 15.

As a result, the alarm-causing contact and plant information possessed by the monitoring computer 16 and the control device 17 are displayed on the alarm display device 2.
It will be possible to share it even in the case of, and it will contribute to the improvement of the monitoring ability by the operator.

A ninth embodiment of arbitrary display of alarm-related information will be described. In the ninth embodiment, as shown in FIG. 14, a man-machine tool 20 including a keyboard 18 and an operation panel 19 is attached to the alarm display device 2, and the man-machine tool 20 requests the man-machine tool 20. As a result, it is possible to arbitrarily display various information held by the alarm display device 2, such as alarm guidance, image information, trend display of process values, processing contents of logical processing, and the like. As a result, the liquid crystal panel type alarm display 1 can be effectively used even in a normal state other than when an alarm is issued.

[0028]

According to the present invention, when the alarm items of the plant can be changed by only adding / changing the software, the construction process can be shortened, which contributes to the efficient operation of the plant. I can.

Further, the present invention realizes effective alarm display such as color change display, large screen display, character information display, process value trend display, etc. on the liquid crystal panel type alarm display, which is more friendly to the operator. It can notify the alarm and contribute to safe plant operation.

[Brief description of drawings]

FIG. 1 is an overall configuration diagram of an alarm display device of the present invention

FIG. 2 is a plan view of a liquid crystal panel display surface showing the first embodiment of the present invention.

FIG. 3 is a plan view of a liquid crystal panel display surface showing a second embodiment of the present invention.

FIG. 4 is a plan view of a liquid crystal panel display surface showing a third embodiment of the present invention.

FIG. 5 is a plan view of a liquid crystal panel display surface showing a fourth embodiment of the present invention.

FIG. 6 is a first configuration diagram of a fourth embodiment of the present invention.

FIG. 7 is a second configuration diagram of the fourth embodiment of the present invention.

FIG. 8 is a plan view of a liquid crystal panel display surface showing a fifth embodiment of the present invention.

FIG. 9 is a configuration diagram of a fifth embodiment of the present invention.

FIG. 10 is a configuration diagram of a sixth embodiment of the present invention.

FIG. 11 is a plan view of a liquid crystal panel display surface showing a sixth embodiment of the present invention.

FIG. 12 is a configuration diagram of a seventh embodiment of the present invention.

FIG. 13 is a configuration diagram of an eighth embodiment of the present invention.

FIG. 14 is a configuration diagram of a ninth embodiment of the present invention.

[Explanation of symbols]

 1 ... Liquid crystal panel type alarm display device 2 ... Liquid crystal type alarm display device 3 ... Operation panel 4 ... Alarm cause contact 5 ... Alarm guidance device 6 ... Information transmission device 7 ... Image input device 8 ... Commercial TV video signal 9 ... Surveillance computer CRT image signal 10 ... ITV monitor video signal 11 ... Sensor 12 ... Converter 13 ... Logic processing circuit 14 ... Transmission interface device 15 ... Transmission network 16 ... Monitoring computer 17 ... Control device 18 ... Keyboard 19 ... Operation panel 20 ... Man machine tool

Claims (10)

[Claims] 1. A liquid crystal panel type alarm display device comprising an alarm display device provided in a central control room of a plant, which comprises a plurality of liquid crystal panels, and a controller for controlling the liquid crystal panel type alarm display device. Alarm display device. 2. The alarm display device according to claim 1, wherein the liquid crystal panel type alarm display is configured to change the color of the liquid crystal panel according to the degree of danger of an alarm that has occurred. 3. The alarm display device according to claim 1, wherein the liquid crystal panel alarm display blinks the liquid crystal panel when an alarm occurs. 4. The alarm display device according to claim 1, wherein the liquid crystal panel type alarm display displays large characters by simulating a plurality of liquid crystal panels as one large screen. 5. The liquid crystal panel type alarm indicator displays character information on a plurality of liquid crystal panels.
The alarm display device described in. 6. The liquid crystal panel type alarm display device displays a plant monitoring computer CRT screen, a surveillance camera image, a commercial TV image, and other image information on a plurality of liquid crystal panels. The alarm display device described in. 7. The alarm display device according to claim 1, wherein the liquid crystal panel type alarm display displays trend of process values of the plant on a plurality of liquid crystal panels. 8. A liquid crystal panel type alarm display is provided with a display accompanied by logical processing, such as priority display determination based on the importance of alarm generation items, first generation item selection display, chain item exclusion display, etc. The alarm display device according to item 1. 9. The alarm display device according to claim 1, wherein alarm information to be displayed on the liquid crystal panel type alarm display is transmitted and input from a plant monitoring computer, a control device or the like. 10. The alarm display device according to claim 5, wherein various display functions of the liquid crystal panel type alarm display device can be arbitrarily displayed by a man-machine tool.