JPH08287378A - Plant monitoring device - Google Patents

Abstract

PURPOSE: To perform monitoring and operation with few errors by performing a grouping in accordance with the feature of the monitoring function of a plant state, extracting a common item, storing the item and displaying it. CONSTITUTION: When a screen confirmation command is issued from an input device, a related item extractor 2 extracts the related item based on the character of each monitoring screen and stores the item in a related item storage device 8. When a report request command is issued from an input device, a common monitoring item extractor 3 stores a related item group including even one item matching with each related item from the related item extractor 2 as a common monitoring item in a common monitoring item storage device 6. Next, a common item screen preparing device 4 stores the related item group stored in the common monitoring item storage device 6 as a display image in a synthethic screen storage device 7. Next, in a synthetic screen display device 5, display image information is arranged on the screen arrangement conformed to display capacity and a synthetic monitoring screen display is performed, based on the display image of the synthetic screen storage device 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for monitoring a plant such as a power plant, and particularly when an abnormality occurs in the state of the plant, promptly presenting information on the abnormality to an operator. The present invention relates to a plant monitoring device that enables

[0002]

2. Description of the Related Art Conventionally, in order to monitor a plant, a plurality of monitoring screens such as an alarm display, a system diagram, and a trend are used to grasp the plant state in a multifaceted manner, and the plant is operated and monitored. Therefore, when an abnormality occurs in the plant, it is necessary to switch and display and monitor a plurality of monitoring screens in order to grasp the operating state. In addition, each monitoring screen has other parameters of the abnormal parameter that is being watched and is useful as supplementary information for making a situation judgment, but all supplementary information is not included in one surveillance screen. , It was necessary to repeat multiple screen display / monitoring operations.

[0003]

As described above, according to the conventional technique, when an abnormality occurs in the plant, the monitoring screen is switched to monitor desired information.
It is difficult to quickly grasp information about abnormalities and measures for dealing with these abnormalities when the plant is abnormal,
In addition, it is difficult to quickly take measures against this abnormality.

The present invention has been made in view of the above problems, and an object thereof is to monitor a plant operation and to monitor an item that must be closely monitored by a plant abnormality or the like. It is an object of the present invention to provide a plant monitoring device capable of collecting and displaying auxiliary information necessary for an operator to comprehensively judge this abnormality from other monitoring screens distributed and arranged.

[0005]

A plant monitoring apparatus according to the present invention for achieving the above object is a plant monitoring apparatus having a plurality of monitoring functions for extracting and monitoring a plurality of pieces of information relating to the state of a plant. (a) means for extracting parameters necessary for plant monitoring from each of the monitoring functions; and (b) means for extracting and grouping the extracted plurality of parameters according to the content that characterizes each of the monitoring functions, and storing the parameters. (c) means for extracting and storing common items from the extracted and grouped items, and (d) means for storing the stored common items in association with the function attributes of the monitoring functions (e) ) Means for generating and displaying a composite screen from the stored common item and monitoring function attribute.

[0006]

According to the present invention, information relating to the state of the plant is grouped according to the characteristics of the monitoring function, common items are extracted and stored, and the common items are stored and displayed in association with the function attributes of the monitoring function. Because I tried to make it
A monitoring screen in which supplementary information is added to the plant monitoring parameter to be noticed will be presented according to the monitoring operation of the operator, the plant operating condition will be easy, and many supplementary information will be presented at the same time. Therefore, it is possible to perform plant monitoring and operation with few errors. Further, since it is not necessary to prepare various monitoring screens in advance according to the operating conditions of each plant and the monitoring condition of the operator, the screen creation work and the used memory can be deleted.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 illustrates the function of a plant monitoring apparatus according to an embodiment of the present invention.

When a plant operator makes a monitor screen display request to the monitor screen display device 1, the monitor screen display device 1 displays various requested display functions (system diagram, alarm display, trend, etc.). ) Is displayed on a display device such as a CRT display device. There are cases where the various displays displayed by the request do not include the plant state parameter that is desired to be directly monitored depending on the amount of information and the screen configuration. In this case, the plant status parameter in the same display function is searched and displayed by the monitoring item display operation by the page operation or the like from the input device such as the keyboard. Next, when the plant state parameter to be monitored is displayed, the operator issues a screen confirmation command from an input device such as a keyboard, and the related item extraction device 2 displays the monitor screen currently displayed on the monitor screen. Paying attention to each displayed plant state parameter, the related item based on the character of each monitoring screen is extracted and stored in the related item storage device 8. For example, when the monitor screen is an alarm display screen, all the alarm items included in the alarm occurrence time before and after the alarm occurrence time of the displayed alarm item are displayed. Is stored as When the monitoring screen is a system diagram, all plant state parameters arranged near the display position of each displayed plant state parameter are stored as related items. When these various monitor screen displays, monitor item operations, and screen confirmation commands are performed n times, N related item groups are stored in the related item storage device.

[0009]

[Equation 1]

N: number of related item groups confirmed in all operations m _i : number of related item groups extracted at the i-th screen confirmation command performed next, plant operation state monitoring by a series of monitoring screens is completed. In this case, when the operator issues a report request command from an input device such as a keyboard, the common monitoring item extraction device 3 selects the related item R _N from the related item extraction device 2 in which N related item groups are stored. A related item group N ′ including even one matching item is set as a common monitor item by a series of monitor screen operations in the common monitor item storage device 6 and a monitor screen type K _N ′ (system) to which the related item group N ′ belongs. (Figures, alarm displays, etc.) are stored in the common monitoring item storage device 6. Next, the common item screen creation device 4 _selects N'at the attribute of K _N ′ based on the related item group N ′ stored in the common monitor item storage device 6 and the monitor screen type K _N ′ to which _N ′ belongs. The item is stored in the composite screen storage device 7 as a display image of K _N ′. Next, the composite screen display device 5 displays the composite monitor screen by arranging the display image information in a screen layout suitable for the display capability of a display device such as a CRT display device based on the display image information of the composite screen storage device 7. Composite screen storage device 7
In the case where the display image information in the above does not fit on one display screen that can be output by the display device, the composite screen display device 5
It can be displayed as j display screens and can be monitored by page operations or the like.

FIG. 2 shows a flow chart up to the creation of the monitor screen in one embodiment of the present invention.

The operator displays _{t + n} monitoring screens At _{+ n} , and the monitoring item display operation displays the monitoring items at At _{+ n} . Here, the operator is, issuing a screen confirmation command, extracting and storing the related item E _n (A t _{+ n)} from the display items displayed in A t _{+ n.} Next, when the operator makes a report request, the related item E _n (A _{t + n} ) to the common monitoring item C
Extract _m (A _tn ). This common monitoring item is, as shown in FIG. 3, each event E extracted in each screen At _{+ n} .
_{In n} (A _{t + n} ), an event set including the completely common items that are collectively matched is extracted as a common monitoring item C _m (A _{t + n} ). Next, in FIG. 2, the display attribute A _{t + K} , C _m
The screen size W _K that can be displayed individually is obtained and stored in the display composition buffer. After performing this process for all common items, display from the upper part of the display composition buffer.

FIG. 4 illustrates a specific display screen as an example.

First, it is assumed that the operator makes a warning display request. The alarm display is a time-series display of the abnormal items that occurred during plant operation, in the order of time when they occurred. In this example, abnormal items A to G occur.
Here, assuming a case where the operator is monitoring the operation by paying attention to an abnormality near the turbine, the operator makes a confirmation request because item A can be monitored on this alarm display screen.
Next, as related item extraction, items that are close to the abnormality occurrence time are collected as related abnormalities with a certain time width (10 minutes in this case) around the occurrence time of each item. To extract.

Next, it is assumed that the operator makes a system diagram display request. The system diagram display is graphically displayed together with each plant parameter based on the plant equipment configuration. Again, the operator can monitor the monitoring item A near the turbine, so the operator makes a confirmation request. Next, as related item extraction, the physical arrangement is collected and extracted assuming that items (in Δi, Δj) that are close to each other in terms of physical parameters are related items.

Finally, it is assumed that the operator makes a trend display request. In the trend display, related plant parameters are grouped and displayed for mutual monitoring in the same trend graph. Similarly, as a result of the operator selecting the trend group and monitoring groups 4 and 5, monitoring item A could be monitored in group 5,
The operator makes a confirmation request. Next, as the trace item extraction,
Collect and extract plant parameters that belong to the same trend group as related items.

At this point, the operator requests the report as if the monitoring operation for the series of items A is completed. Items A, B, and D (complete common items) are extracted as a common set of related items extracted in the alarm display, system diagram, and trend. Next, the following sets are extracted with display attributes as items (common items) including the common set (A, B, D). (1) Alarm display / (A, B, C, D) (2) System diagram / (A, B, D) (3) Trend / (A, B, D) Create and display at.

[0018]

【The invention's effect】

(1) A monitoring screen in which supplementary information is added to the plant monitoring parameters of interest is presented according to the operator's monitoring operation, so that the plant operation status is easy and many supplementary information is presented at the same time. Therefore, plant monitoring and operation with few errors can be performed.

(2) Since it is not necessary to prepare various monitoring screens in advance according to the operating status of each plant and the monitoring status of the operator, screen creation work and used memory can be deleted.

[Brief description of drawings]

FIG. 1 is a diagram illustrating functions of a plant monitoring device according to an embodiment of the present invention.

FIG. 2 is a flowchart of creating a monitor screen according to an embodiment of the present invention.

FIG. 3 is a conceptual diagram of common item extraction in one embodiment of the present invention.

FIG. 4 is a display example on a monitor screen according to an embodiment of the present invention.

[Explanation of symbols]

1 ... Monitoring screen display device, 2 ... Related item extracting device, 3 ... Common monitoring item extracting device, 4 ... Common item screen creating device, 5 ...
Synthetic screen display device, 6 ... Common monitoring item storage device, 7 ... Synthetic screen storage device, 8 ... Related item storage device.

Claims (1)

[Claims] 1. A plant monitoring device having a plurality of monitoring functions for extracting and monitoring a plurality of pieces of information relating to the state of a plant, wherein: (a) means for extracting parameters required for plant monitoring from each of the monitoring functions; (b) a means for extracting and grouping the extracted plurality of parameters according to the content that characterizes each of the monitoring functions, and (c) a means for extracting and storing a common item from the extracted and grouped items (D) means for storing the stored common item in association with the function attribute of each of the monitoring functions,
(e) means for generating and displaying a composite screen from the stored common item and monitoring function attribute, and the plant monitoring device.