JPS63293612A - Plant monitoring device - Google Patents

Abstract

PURPOSE:To early display the operating information having higher importance by setting the order of plural operating information to be displayed in response to each corresponding importance of abnormality. CONSTITUTION:A monitoring device 3 for a plant 1 fetches a process signal via an input device 2 to monitor whether signal is kept within a prescribed range or not and displays the result of this monitor on a CRT display device 6. At the same time, a manual selecting means 35 of the device 3 reads a manual name out of a manual data table 36 based on the alarm number and its importance information from a diagnosing means 33 and outputs the manual name and its importance to a manual order control means 40. This means 40 sets the order of those manual names on a manual output request table 41 based on said importance. Then the manual output is requested to an output means 38. Thus it is possible to quickly display the relevant countermeasure manual in case an alarm having a high degree of danger is produced in the subsequent alarm deciding cycles.

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention monitors the state of signals input from a plant and, when an abnormality is detected, provides operational information for dealing with the abnormality. This invention relates to a plant monitoring device that displays graphics.

(Prior art) For example, in an industrial plant such as a nuclear power plant, the status of process signals input from the plant is monitored, and if an abnormality is detected, a manual (operation information) for dealing with the abnormality is issued. Displayed to the operator.

This display is made on a screen display device such as a CR7 display device, and the manual itself is stored in a file device as graphic data. Furthermore, since the amount of data required for manuals is enormous due to the complexity of the plant, the manuals are usually stored in an optical disk file device.

A conventional example of such a plant monitoring device is shown in FIG.

In the figure, various process signals outputted from a plant 1 are applied to a monitoring means 31 of a plant monitoring device 3 via a process input device 2 at a predetermined period corresponding to each signal.

The monitoring means 31 monitors whether the input process signals do not deviate from predetermined ranges set for each. If there is a signal that deviates from the range, the state is determined to be an alarm occurrence, and the result is stored in the input signal state table 32 by referring to the alarm number set in the process signal that generated the alarm. .

As shown in Table 1 below, the input signal status table 32 includes the "alarm number" corresponding to each alarm, the "importance level" set for each alarm, and the "presence or absence of alarm occurrence". information is stored.

Among these, the contents of the "alarm number" and "importance" columns are set in advance, and the contents of the "presence or absence of alarm occurrence" column are appropriately rewritten by the monitoring means 31 according to the occurrence status.

” Here, the smaller the “importance” value, the greater the risk. In addition, alarm numbers are set not only for alarms related to abnormalities in direct process input signals, but also for alarms consisting of combinations of these, as described later, and the relationship between the alarm number and severity of such alarms is also set in this way. It is stored in the input signal status table 32.

Furthermore, when an alarm occurs, the monitoring means 31 reads the importance set for the alarm from the input signal status table 32, and if it is greater than a predetermined value, that is, if the degree of danger is large, , notifies the diagnostic means 33 that an alarm has occurred.

For example, the diagnostic means 33 stores the interrelationship between each alarm as sequence data as shown in FIG. Based on this, data is stored in the abnormality occurrence sequence table 34.

For example, as shown in FIG. 4, when alarm 1, alarm 4, and alarm 6 are occurring, the abnormality occurrence sequence table 34
Data as shown in Table 2 below is stored in . (The following is a blank space) Shadow Here, the first cause indicates that there is no alarm that causes the alarm to be generated.

Further, the diagnostic means 33 issues an alarm for the first R cause and a first R cause alarm.
The importance level of an alarm that is determined to have newly occurred due to the abnormality occurrence sequence described above due to reasons other than the cause is input from the input signal state table 32. Then, in descending order of importance,
That is, the alarm numbers are outputted to the manual selection means 35 together with the importance levels in descending order of risk.

The manual selection means 35 refers to the manual data table 36 based on the alarm number notified by the diagnosis means 33, and sequentially selects a manual name indicating a manual for dealing with the alarm corresponding to the alarm number and creates a manual output request list. Accumulates to 37. At the same time, the manual selection means 35 requests the output means 38 to output a manual.

The manual data table 36 includes an alarm number for each alarm, as shown in FIG.

The importance level, manual name, optical disk access information, manual file name, first page, and number of pages are stored.

In this embodiment, manual data is stored in an optical disk file device (described later).

The output means 38 extracts the manual names in the order stored in the manual output request list 37 and outputs them to the manual display control device 4.

The manual display control device 4 reads the manual data of the received manual name from the optical disk file device 5 and displays it on the CR7 display device 6.

In this way, when an abnormality occurs in the plant 1, a manual for dealing with the abnormality is displayed on the CR7 display device 6, so that the operator can quickly take appropriate measures.

(Problem to be solved by the invention) However, in such conventional devices, a manual for dealing with the judged alarm is displayed every alarm judgment cycle, so a very high-risk alarm is When an alarm occurs in the alarm judgment cycle, there is an inconvenience that it takes time until a manual for dealing with the alarm is displayed.

The present invention has been made in order to eliminate the inconveniences of the prior art, and when an extremely high-risk alarm occurs in a later alarm judgment cycle, the manual for dealing with the alarm is as much as possible. The purpose is to provide a plant monitoring device that can quickly display information.

[Structure of the Invention] (Means for Solving Problems) The present invention includes a control means that sets the order of a plurality of pieces of operation information to be displayed according to the importance of the respective abnormalities.

(Operation) Therefore, items of high importance can be displayed earlier, and plant monitoring can be performed appropriately.

(Embodiments) Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 shows a plant monitoring device according to an embodiment of the present invention. In this figure, the same parts and corresponding parts as in FIG. 3 are given the same reference numerals.

In the figure, the manual selection means 35 is the diagnostic means 33
reads the manual name from the manual data table 36 based on the alarm number and severity notified from the
Manual order adjustment means 4 for manual name and importance level
Output to 0.

The manual order adjustment means 40 is the manual selection means 3
5, the order of the input manual names in the manual output request table 41 is set by referring to the importance levels of the manual names already stored in the manual output request table 41. Then, a manual output is requested from the output means 38.

The manual output request table 41 stores manual names and their importance as shown in Table 4 below.

The output means 38 notifies the manual display control device 4 of the manual names in order from the top of the manual output request table 41.

An example of processing by the manual order adjustment means 40 is shown in FIG.

First, process 101 to initialize the variable i to O for setting the point of interest in the manual output request table 41.
), it is checked whether the contents of the manual output request table 41 are empty (determination 102).

If the result of the judgment 102 is YES, when outputting the manual output request to the output means 38, the name of the manual to be output requested is directly output to the output means 38 (process 10).
3).

If the result of the judgment 102 is NO, it is checked whether the importance of the i-th manual name in the manual output request table 41 is greater than the importance of the manual name input from the manual selection means 35 at that time (judgment 104
).

If the result of judgment 104 is NO, the variable i is incremented (process 105) and the process returns to judgment 102.

If the result of the judgment 104 is YES, place the manual name and its importance input from the manual selection means 35 at that time in the i-th column of the manual output request table 41, and place the manual name and its importance level input in the i-th column before that. The name and importance of the manual that was located in the (ill)th position and the name and importance of the manual that was located in the (ill)th position are (i+2)
Then, sequentially, manual output request table 41
The content of is updated (processing 106).

Therefore, in the manual output request table 41, manual names and their degrees of importance are arranged in descending order of importance. Thereby, the output means 38 always outputs the manual name with the highest degree of importance at that time to the manual display control device 4.

As a result, the CR7 display device 6 displays the manual with the highest degree of importance at that time.

However, if there is a manual being displayed, the manual display is updated when the operator finishes displaying the manual.

As described above, when an alarm occurs in plant 1,
Since manuals for dealing with alarms are displayed on the CR7 display device 6 in order of importance, appropriate operation for ensuring the safety of the plant 1 is possible.

[Effects of the Invention] As explained above, according to the present invention, a control means is provided for setting the order of a plurality of pieces of operation information to be displayed according to the importance of the respective abnormalities. The effect is that operation information can be displayed earlier and plant monitoring can be performed appropriately.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing a plant monitoring device according to an embodiment of the present invention, FIG. 2 is a flowchart showing a processing example of the manual order adjustment means, and FIG. 3 is a block diagram showing a conventional example of the plant monitoring device. FIG. 4 is a sequence diagram showing an example of an abnormality occurrence sequence, and FIG. 5 is a signal arrangement diagram showing an example of the stored contents of a manual data table. 40...Manual order adjustment means, 41...Manual output request table.

Claims (1)

[Claims] In a plant monitoring device that monitors the state of signals input from the plant and detects the occurrence of an abnormality, it graphically displays operation information to deal with the abnormality, and the order of the plurality of pieces of operation information to be displayed is changed to indicate the abnormality corresponding to each one. A plant monitoring device characterized by comprising a control means for setting according to the degree of importance of the plant monitoring device.