JP3163108B2 - Plant monitoring equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plant monitoring apparatus used for monitoring an abnormality of a component of a plant .

[0002]

2. Description of the Related Art As maintenance means for each part of a plant configuration,
Patrols by plant personnel are widely performed. In this method, plant components are constantly monitored using the five senses of visual and auditory senses of plant personnel so that early detection of abnormalities and measures to prevent the propagation of abnormalities by early detection can be achieved.

However, since all such plant patrol operations involve humans, mistakes such as oversight are inevitable. Further, in a large-scale plant, it is necessary to carry out patrols over a vast area, which places a burden on plant personnel. Therefore, recently, a device that processes an image of a camera or a microphone and a signal from an acoustic sensor by a computer and mechanically detects an abnormality has been introduced.

FIG. 4 shows a configuration example of such a plant monitoring apparatus . In FIG. 4, the image and acoustic data of each part of the plant are collected by the acoustic sensor group 1 and the incremental sensor group 2 arranged at various parts of the plant, and are taken into the abnormality determination device 3. The abnormality determination device 3 analyzes these data, determines the presence or absence of an abnormality using the analysis result, and displays the determination result on the display device 4. The display device 4 displays the names of all the sensors of the acoustic sensor group 1 and the image sensor group 2 and the determination result of the abnormality determination device 3, and displays an alarm message on the same screen when an abnormality is recognized. An input device 5 for inputting a request from an operator is connected to the abnormality determination device 3. With such a device, the plant abnormality monitoring is centralized, and the plant factor is monitored only on a single screen to reduce errors and reduce the burden of the plant factor.

[0005]

As described above, the conventional plastic
The event monitoring device processes the signals from multiple sensors, and on the single screen displays the most important and urgent information among the results, the abnormality determination result and the sensor name required for qualifying the location where the abnormality occurred. The display is used to centralize plant abnormality monitoring. However, even if an abnormality is detected, recovery from the abnormality often requires work to reduce the operational efficiency of the process, including plant shutdown. By comparing and examining, the presence or absence of implementation is determined. Therefore, depending on the situation of the abnormality, the recovery work may not be performed, and in this case, it is necessary to continuously monitor the progress of the abnormality. Further, even when the execution of the recovery work is determined depending on the state of the abnormality, it takes a considerable period of time to perform the work, so it is necessary to grasp the state of the abnormality.

However, it is necessary to display detailed information such as a data analysis process and an abnormality determination process in order to grasp the status of the abnormality, and it is conceivable to display more information in order to respond to such a request. As a result, the display is complicated and the visibility is low, and it is difficult to quickly check for the occurrence of an abnormality, which is information of high urgency.

Further, for example, when the scale of a plant process is increased as in a thermal power plant, the monitoring range is widened, so that the number of sensors arranged is increased, and all monitoring information can be displayed on a single screen. Impossible. For this reason, a method is conceivable in which a plurality of screens in which the number of sensor displays is limited are provided, and these screens are switched by an operator through an input device to prevent a decrease in visibility due to an increase in display information. However, the display screen increases as the monitoring range increases, and the operation becomes complicated. As a result, it is difficult to urgently know whether or not an abnormality has occurred. Further, there is no means for recognizing an abnormality occurrence location in the whole plant, and the operator must always recognize correspondence between a large number of displays and processes and locations of the plant.

[0008] As described above, a request for displaying detailed information and a large-scale plant require a large amount of data to be displayed. However, the purpose of quickly knowing an abnormality tends to be contradictory, and it is difficult to provide a device that satisfies all the purposes required for monitoring work.

An object of the present invention is to constantly monitor the components of a plant, and when an abnormality occurs, a plant monitoring apparatus capable of easily ascertaining the occurrence of the abnormality, the location where the abnormality occurred, and the content and extent of the abnormality. To provide.

[0010]

SUMMARY OF THE INVENTION The present invention relates to a plant
Is detected by the sensor group and output from this sensor group.
Of the plant components by processing the data
In a plant monitoring device for detecting an abnormality, the sensor
Capture data detected by groups and analyze this data
Abnormality determining means for determining the presence or absence of an abnormality by
The sensor arrangement information indicating the arrangement of the groups and the abnormality determination means
Record the information that associates the result of the judgment with the data processing content.
The display information storage means and the abnormality determination means determine
When the input result is input, the display information storage means
Reads information according to the determination result of the abnormality determination means, and
At the time, the sensor arrangement information and the judgment result are displayed,
At all times, the information necessary for grasping the sensor
The display of abbreviation information is displayed on the display means, and detailed
Display control means for displaying data analysis contents on display means;
It is provided with.

[0011]

In the plant monitoring apparatus having such a configuration, the judgment result is displayed in a normal state, and when an abnormality occurs, information necessary for displaying the abnormality judgment result and grasping the abnormal state or sensor arrangement information and It is possible to display information necessary for grasping the abnormality, and then to display detailed data analysis contents in response to a request from the input means. In addition, by assigning higher priority information necessary for monitoring work to the upper level, it is hierarchized, and by managing a large amount of information from summary information to detailed information, it is automatically obtained according to the abnormality determination result. Information can be displayed.

[0012]

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

FIG. 1 is a block diagram showing a configuration example of a plant monitoring apparatus . In FIG. 1, reference numeral 11 denotes an acoustic sensor group such as a microphone installed in each part of the plant, and 12 denotes an image sensor group such as a camera. Information collected by the acoustic sensor group 11 and the image sensor group 12 is determined to be abnormal. Device 13
Is taken in. The abnormality determination device 13 analyzes input information to determine whether there is an abnormality. The crotch 14 is a display information storage device. The display information storage device 14 has sensor arrangement information indicating the arrangement of images and acoustic sensors in the entire plant and information for associating the results determined by the abnormality determination device 13 with the data processing contents. For example, a normal item list and an abnormal display item list are stored as related information hierarchized according to importance. Reference numeral 15 denotes a display control device to which a result determined by the abnormality determination device is input. The display control device 15 stores the determination information in the display information storage device 1.
4 according to the display information stored in the display device 1
6 is displayed. Reference numeral 17 denotes an input device for transmitting a request from the operator to the display control device 15, and the input device 17 selects a display screen according to the display information.

Next, the plant monitoring constructed as described above
The operation of the device will be described with reference to FIGS. FIG.
Shows the hierarchical relation of the display screen in the present embodiment, and FIG. 3 shows an example of the screen relation information provided in the display information storage device.

As is well known, in a plant monitoring operation,
The most important and priority purpose is to quickly detect anomalies. To achieve this purpose, the normal display screen 18 displayed in the normal state follows the normal display item list 21 held in the display information storage device 14 and the names of a plurality of detection sensors and abnormality detection by the abnormality determination device 13. Displays the presence or absence of This screen provides the widest possible monitoring work and provides only the highest priority information so that the number of monitoring screens can be reduced.

The next important task is to grasp the situation of an abnormality when an abnormality is detected by analyzing information from a certain detection sensor. Therefore, when the abnormality determination device 13 determines, for example, that the sensor A in the normal-time item list 21 has detected an abnormality, the display control device 15 stores the abnormal-time display item list 22 stored in the display information storage device 14. Is used to select a data analysis process, a data analysis result, and the like necessary for grasping an abnormal situation, and automatically output to the display device 16 as an abnormal display screen 19. When it is desired to display more detailed information, for example, detailed information of A1 in the abnormal display item list, the display controller 15 selects the display information using the detailed information list 24 by instructing from the input device 17, The detailed information screen 20 is output to the display device 16.

In the above embodiment, a plan having a screen hierarchy relationship
This is an explanation of the monitoring device.
The following display can be performed by storing the sensor arrangement information in the error display items 22 and 23 in FIG.

In a normal state in which no abnormality is detected, the display device 16 displays an overall monitoring diagram showing the approximate positions of a plurality of detection sensors in the plant and a result of the abnormality determination device 13 in a normal state in accordance with a command from the display control device 15. It is displayed on the screen 18. When the abnormality determination device 13 makes a determination of abnormality detection, the display control device 15 uses a sensor arrangement information included in the display information storage device 14, and a sensor arrangement diagram in which at least the position of each image and the acoustic sensor in the plant is known, It automatically displays at least the monitoring information that allows the overview of the abnormal situation to be grasped as an abnormal display screen. Further, by making a request from the input device 17, the display control device 15 displays more detailed abnormality detection information as a detailed information screen 20 on the display device 16 using the detailed information list 24 included in the display information storage device 14. . Further, in the above embodiment, the following display can be performed by providing the display control device 15 with a screen control function that can be interrupted.

In this embodiment, the abnormality judging device 1
3, when an abnormality is detected, the display is automatically switched. That is, when the abnormality is not detected, the display device 16 displays the normal display screen 18 in the same manner as in the above-described embodiment, and when the abnormality determination device 13 determines that the abnormality is detected, the display control device 15 changes the display to the abnormal display. The screen is automatically switched to the screen 19.

Even if no abnormality is detected, for example, it is necessary to grasp the temporal change of the plant component to be monitored, or to monitor the abnormal progress of the plant component that has not been recovered. When the operator determines that it is necessary to display the data analysis contents and the signals of the detection sensors, the display control device 15 makes a request from the input device 17 irrespective of the presence or absence of an abnormality.
8 to the detailed information screen 20.

As described above, according to the above embodiment, enormous plant monitoring information due to an increase in the scale of the process can be systematically monitored from the highest priority, and the abnormality can be detected quickly and quickly. The situation and the place of occurrence can be easily identified.

The display screens and display items hierarchically linked in the above description and in FIGS. 2 and 3 can be configured in a larger number, and can be selected by the content of an abnormality or input by an operator. In the above embodiment, the screen is divided into three layers. However, it is needless to say that a multi-layer structure can be used.

[0023]

As described above, according to the present invention, the normal
By automatically providing necessary information in the event of an emergency or
Can be performed easily and accurately,
Quick detection of relevant anomalies, identification of their locations and
A plant supervisor who can satisfy the situation
A visual device can be provided.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an embodiment of a plant monitoring apparatus according to the present invention.

FIG. 2 is an explanatory diagram of a hierarchical relationship of a display screen in the embodiment.

FIG. 3 is an explanatory diagram of a hierarchical relationship of screen display information in the embodiment.

FIG. 4 is a block diagram showing a conventional plant monitoring device.

[Explanation of symbols]

11 ... Acoustic sensor group, 12 ... Image sensor group, 13 ...
... Abnormality determination device, 14 ... Display information storage device, 15 ...
Display control device 16 Display device 17 Input device

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Tetsuya Nakano 2--4, Suehirocho, Tsurumi-ku, Yokohama-shi, Kanagawa Prefecture Inside the Toshiba Keihin Plant (72) Inventor Tetsuo Mozai 1-1-1, Shibaura, Minato-ku, Tokyo No. 1 Inside the head office of Toshiba Corporation (56) References JP-A-61-206099 (JP, A) JP-A-3-29008 (JP, A) JP-A-3-48393 (JP, A) 2-224095 (JP, A) JP-A-60-81697 (JP, A) JP-A-59-132095 (JP, A) JP-A-53-68997 (JP, A) JP-A-63-98097 (JP, A) A)

Claims (1)

(57) [Claims] 1. The state of each part of a plant is detected by a sensor group.
And process the data output from this sensor group.
To detect plant component errors
Data detected by the sensor group in the visual device
And analyze this data to determine if there is any abnormality
Abnormality determination means and a sensor arrangement indicating an arrangement of the sensor group
Information and the result determined by the abnormality determination means and data processing.
Display information storage means for storing information for associating logical contents
And the result determined by the abnormality determination means is input.
The judgment result of the abnormality judgment means from the display information storage means
The information corresponding to the sensor arrangement information is read out.
And the judgment result is displayed.
Display information and summary information necessary for grasping the abnormal situation.
Column, and display the detailed data analysis contents as needed.
Display control means for displaying on a column.
Plant monitoring equipment.