JP3445409B2 - Plant alarm monitoring device - 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 alarm monitoring device for monitoring an alarm state of a power plant or the like.

[0002]

2. Description of the Related Art Each alarm generated in a plant can be classified into many ranks according to its importance. 2. Description of the Related Art Conventionally, in a plant alarm monitoring device, by displaying an alarm of high importance on an alarm screen by emphasizing its existence, it is possible for a monitoring staff to more reliably capture the alarm.
Various methods have been proposed so far for highlighting a highly important alarm on the alarm screen.

Typical examples thereof include a method of displaying alarm data in color according to the degree of importance and a method of preferentially displaying alarm data of high degree of importance in position. The latter method collects highly important alarm data in the upper screen of the first page, even if all the alarm data cannot fit on one alarm screen due to the generation of many alarm data. Highly important alarm data can always be displayed on the first page of the alarm screen, and the risk of overlooking an important alarm can be reduced.

[0004]

However, in this method, the observer recognizes the occurrence status of the alarm for each importance level, for example, the status where a large number of alarm data of high importance level are intensively generated. However, the actual response to the highly important alarm, which should be promptly responded to, is delayed. Therefore, it is possible to display the warning data on the screen in different colors according to the degree of importance, but if there is warning data of high importance across multiple pages, it is necessary to page forward. Cannot be grasped and the operation is troublesome.

The present invention is intended to solve such a problem, and a monitor can confirm at a glance the number of pieces of alarm data of each importance among a large number of alarms of various importance. It is an object of the present invention to provide a plant alarm monitoring device capable of preventing a high alarm from being overlooked.

It is another object of the present invention to provide a plant alarm monitoring apparatus capable of easily confirming input points in a defective input state and an input exclusion state. Further, the present invention has an object to provide a plant alarm monitoring apparatus capable of eliminating a situation in which a measure taken by an observer endlessly goes to the rear even when an alarm state is set because the importance is not so high. There is. It is another object of the present invention to provide a plant alarm monitoring device that can improve efficiency when the monitoring target is limited to a certain system in addition to the importance.

[0007]

In order to achieve the above-mentioned object, the plant alarm monitoring apparatus of the present invention determines the presence or absence of an alarm state at each input point from the data obtained from each input point in the plant, Display data creation means for creating plant status display data including this determination result and input point information, storage means for storing the created plant status display data, and the importance of the alarm status corresponding to each input point is registered. Based on the input point information in the plant status display data in the alarm state stored in the storage means and the stored importance degree registration means, the importance degree for determining the importance degree of the alarm state by referring to the importance degree registration means Judgment means, counting means for respectively counting the number of plant state display data for each importance degree based on the judgment result of the importance degree judgment means, and displaying the counting result of this counting means in association with each importance degree Data number display means, selection means for selecting any importance level from the displayed importance levels, and plant status display data of the selected importance levels are retrieved from the storage means and displayed as alarm data And alarm data display means.

In order to achieve the above-mentioned object, the plant alarm monitoring apparatus of the present invention further comprises means for adding the presence / absence information of the defective input and the presence / absence information of the input exclusion to the plant state display data, and storing the means in the storing means. Second counting means for counting the number of plant state display data in the defective input state and the input exclusion state stored in the means, respectively, and second counting means for displaying the counting result of the second counting means in association with each state. No. of data display means, second selection means for selecting any state from the display contents of the second data number display means, and plant state display data of the selected state are retrieved from the storage means. And second alarm data display means for displaying the alarm data as alarm data.

Further, in order to achieve the above-mentioned object, the plant alarm monitoring apparatus of the present invention is provided in the importance level registration means corresponding to the input point information in the plant state display data in the alarm state stored in the storage means. An evaluation means for evaluating the validity of the importance based on the importance, time information and the current time, and an importance changing means for changing the importance in the importance registration means based on the evaluation result of the evaluation means. It will be further equipped.

Further, in order to achieve the above-mentioned object, the plant alarm monitoring apparatus of the present invention determines the presence or absence of an alarm state at each input point from the data obtained from each input point of each system in the plant, and makes this determination. The display data creating means for creating the plant status display data including the result and the input point information, the storing means for storing the created plant status display data, and the importance of the alarm status corresponding to each input point are registered. Based on the importance level registration means, the system type registration means in which the system type corresponding to each input point is registered, and the input point information in the plant status display data in the alarm state stored in the storage means Based on the importance / system type determination means for determining the importance of the alarm state and the system type by referring to the registration means and the system type registration means, and the determination result of the importance / system type determination means Counting means for respectively counting the number of plant status display data of each system type for each importance, data number display means for displaying the counting result of the counting means in association with the importance and the system type, and each displayed important And a selection means for selecting an arbitrary importance and system type from each system type, and an alarm that retrieves the plant status display data of the selected importance and system type from the storage means and displays it as alarm data. And a data display means.

[0011]

In the plant alarm monitoring apparatus according to the first aspect of the present invention, the number of plant state display data in the alarm state is displayed separately for each importance level of the alarm, and the importance level selected arbitrarily among them is displayed. Since the data can be displayed as a list of alarm data, the number of alarms of each importance level can be checked at a glance among a large number of alarms of various importance levels. Therefore, it is possible to promptly recognize a situation in which a large number of them have occurred.

In the plant alarm monitoring apparatus according to the second aspect of the present invention, the number of data in the defective input state and the input excluded state is displayed, and the plant state display data in the arbitrarily selected state is used as the alarm data. As a list can be displayed as, it is possible to easily confirm the input points in the defective input state and the input exclusion state.

In the plant alarm monitoring apparatus according to claim 3 of the present invention, the validity of the importance in the importance registration means corresponding to the input point information in the plant status display data is the elapsed time from the alarm generation time to the present time. Based on the above, and if it is judged to be unreasonable, the importance in the importance registration means is changed optimally, for example, even if the original importance is not so high, it will be monitored even if it becomes an alarm state. It is possible to eliminate the situation where the response measures by the staff endlessly fall behind.

In the plant alarm monitoring apparatus according to claim 4 of the present invention, the number of plant status display data of each system type is displayed for each importance, and the importance and system type of the system selected by the monitor are displayed. Since the data can be displayed as a list as alarm data, the efficiency can be improved when the monitoring target is limited to a certain system.

[0015]

EXAMPLES Examples will be described below by taking the case where the present invention is applied to a power plant as an example. FIG. 1 is a diagram showing the configuration of a plant alarm monitoring apparatus according to the first embodiment.

In the figure, 1 is a plant, and 2 is a data scanning means for periodically taking in data such as temperature and pressure from each input point (hereinafter referred to as PID) to be monitored in the plant 1. . 3 is a data scanning means 2
It is a plant data table which stores the plant data taken in by. Reference numeral 4 is a state determination table in which the alarm state determination standard for each PID is stored. Reference numeral 5 is a display data creating means for making a decision as to whether or not there is an alarm state for the plant data by using an alarm state determination standard, and producing plant state display data including the determination result. 6 is a plant state display data table in which plant state display data is stored. Reference numeral 7 is an importance-based table in which the rank of importance for each PID is registered. 8 is a plant status display data table 6 and an importance degree table 7
From the alarm number data table 9 in which the number of data for each importance (rank) is registered, and the PID for each importance (rank)
It is an alarm number data creating means for creating the importance level storage table 10 in which the numbers are registered. 11 is a process of reading the alarm number data table 9 and displaying the number of data for each importance (rank) on the CRT screen 12, and further displaying the plant status display data of the importance arbitrarily selected by the supervisor. It is a display means for performing a process of searching and displaying the data table 6. Further, 13 is a keyboard, and 14 is all PIDs belonging to the selected rank from the storage table 10 classified by importance based on the rank arbitrarily selected by the monitor through the keyboard 13 on the CRT screen 12.
It is an alarm type dialogue means for searching for a number and storing it in the display request rank storage area 15. Next, the operation of this embodiment will be described.

The plant data fetched by the data scanning means 2 is sequentially stored in the plant data table 3. The display data creation means 5 determines the presence or absence of an alarm state for the plant data stored in the plant data table 3 according to the determination criteria defined in the state determination table 4. The determination criterion in the state determination table 4 is PI
It is set for each D. And display data creating means 5
Creates the plant status display data including the judgment result,
This is registered in the plant status display data table 6.
FIG. 2 shows the structure of the plant state display data table 6. As shown in the figure, the time, PID number, current value, alarm limit value, presence / absence of alarm state, presence / absence of defective state, and presence / absence of scanning exclusion are registered in this table 6 as plant state display data.

Next, the alarm number data creating means 8 is used by the plant status display data table 6 and the importance level table 7.
Then, the alarm number data table 9 and the importance-based storage table 10 are created as follows. FIG. 3 shows the details of the alarm number data creating means 8.

The alarm number data creating means 8 first searches the plant status display data table 6 for the PID number in the alarm status by the PID reading means 81 shown in FIG. Subsequently, the alarm number data creating means 8 reads the importance-based table 7 by the importance reading means 82, and the importance determining means 83 determines the rank of the importance for the PID which is the search result. In the importance level table 7, as shown in FIG. 4, the rank of the importance level determined for each PID is registered. The ranks are indicated by A, B, and C in descending order of importance. After determining the rank of importance in this way, the alarm number data creating means 8 registers all the corresponding PID numbers for each rank of A, B, and C in the importance-based storage table 10. FIG. 5 shows the structure of the importance-based storage table 10. Subsequently, the alarm number data creating means 8 determines the number of plant state display data (alarm data) for each rank by the number data creating means 84, and registers the result in the alarm number data table 9. FIG. 6 shows an example of the alarm number data table 9.

Thereafter, the display means 11 reads the alarm number data table 9 and, for example, as shown in FIG.
Each rank and the number of data items belonging to each rank are displayed on the alarm screen in association with each other. In the figure, a, b, and c are display areas for the number of data for each rank. In the initial state, below the display areas a, b, and c for the number of data on the alarm screen, the alarm data belonging to the A rank, which has the highest importance, is displayed in the alarm data display area d. When an arbitrary rank is selected by the monitor through the keyboard 13 on this screen, all P belonging to the selected ranks from the importance level storage table 10 are selected by the alarm type dialogue means 14.
The ID number is searched and the result is stored in the display request rank storage area 15. When the rank is selected, the data number display area of the selected rank on the alarm screen is highlighted, and a confirmation display of the completion of rank selection is displayed.

Thereafter, the display data creating means 5 reads out the PID numbers one by one from the display request rank storage area 15, and sequentially uses the PID numbers as a key from the plant state display data table 6 to display the time, current value and alarm limit value. Etc. data search is performed. Then, the display data creating means 5
Adds rank data to these search data and transfers this to the display means 11 as alarm data. As a result, as shown in FIG. 7B, a list of alarm data belonging to the selected rank is displayed in the alarm data display area d of the alarm screen. In the alarm data display area d shown in FIG. 7B, “HH” is the time, “C” is the rank,
"UPPPP" is the PID, "NN ... N" and "XX ... X"
Indicates other data.

Thus, according to this embodiment, the number of pieces of alarm data classified by importance can be confirmed on the alarm screen, and a list of alarm data belonging to the arbitrarily selected importance can be displayed. Therefore, the number of alarm data of high importance among a large number of alarms of various importance can be confirmed at a glance by the observer, and the alarm of high importance can be prevented from being overlooked.

As a modified example of the present embodiment, the change of the number of alarm data for each importance may be notified to the monitoring person by the change of the display color of the number data display area. Next, a second embodiment according to the present invention will be described.

FIG. 8 is a block diagram showing the configuration of the plant alarm monitoring system according to the second embodiment. In the figure, the same parts as those in FIG. 1 are designated by the same reference numerals. In the figure, 15a creates a defect / scan exclusion number data table 16 from the plant state display data table 6, and also includes the PID number and scan exclusion state (in the plant operator) in the defect input state to the importance level storage table 10. This is a defective / scanning exclusion input data number creating means for registering a PID number in a state where the PID data scan is stopped by the judgment. FIG. 9 shows the details of the configuration of the defective / scanning excluded input data number creating means 15a.

Defect / scan exclusion excluded input data count creation means 1
5a is the PID reading means 151 shown in FIG.
The plant state display data table 6 is searched for the PID number in the defective input state and the PID number in the scanning exclusion state, respectively. Subsequently, the means 15a is the importance degree determination means 15
At 2, the rank of the importance of each PID which is the search result is determined. At this time, the importance of the defective input state is D rank,
The importance of the scanning exclusion state is determined as the E rank, and all the PID numbers corresponding to each rank of D and E are registered in the importance-based storage table 10 shown in FIG. After determining the rank in this way, the means 15a uses the number data creating means 153 to obtain the number of data for each rank of D and E, and the result is the defective / scanning exclusion number data table 1
Register at 6. FIG. 10 shows an example of the defect / scan exclusion number data table 16.

Thereafter, the display means 11 displays the alarm count data table 9 and the defect / scan exclusion count data table 16.
11A, for example, as shown in FIG. 11A, each rank (A to E) and the number of data for each rank are displayed in association with each other on the alarm screen. In the figure, i is the number display area of alarm data in the defective input state, and j is the number display area of alarm data in the scan excluded state.

When the E-rank, for example, is selected by the monitor through the keyboard 13 on this alarm screen, the alarm-type dialogue means 14 retrieves all the PID numbers belonging to the E-rank from the importance-level storage table 10 and, as a result, Is stored in the display request rank storage area 15. Also, by selecting E rank, E on the alarm screen
The alarm data number display area j of the rank is highlighted,
A confirmation display indicating that rank selection is complete is displayed.

Thereafter, the display data creating means 5 causes the PIs belonging to the E rank to be displayed in the display request rank storage area 15.
The D numbers are read one by one, and sequentially using this as a key from the plant status display data table 6, the time, the current value,
Data retrieval such as alarm limit values is performed. Then, the display data creation means 5 adds a rank (E) to these search data and transfers this to the display means 11 as alarm data. As a result, as shown in FIG. 11B, a list of alarm data belonging to the selected E rank is displayed in the alarm data display area d of the alarm screen.

Thus, according to this embodiment, since the number of alarm data in the defective input state and the alarm data in the scan excluded state can be displayed on the alarm screen, it is easy to confirm the PID in the defective input state and the scan excluded state. Therefore, it is possible to avoid a situation in which the plant supervisor forgets the existence of the PID in such a state.

In this embodiment, the defect input and the scan exclusion input generated during the regular inspection are ranked differently from the other normal defect input and the scan exclusion input, and the alarm data by the regular inspection is obtained. May be configured to be identified at a glance.

Next, a third embodiment according to the present invention will be described. FIG. 12 is a diagram showing the configuration of the plant alarm monitoring system according to the third embodiment. In the figure, the same parts as those in FIG. 1 are designated by the same reference numerals.

In the figure, reference numeral 17 evaluates the validity of the importance for the PID in the plant status display data in the alarm state based on the elapsed time from the warning occurrence time to the present and the contents of the monitoring time table 18, and It is a time monitoring means for notifying the importance change means 19 of the evaluation result. Reference numeral 20 denotes an importance-specific initial data table in which initial data (initial rank) of importance determined for each PID is fixedly registered. Further, in the present embodiment, the data (rank) of the importance for each PID registered in the importance table 7 can be changed by the importance changing means 19.

FIG. 13 shows the detailed structure of the time monitoring means 17. First, the time monitoring means 17 first detects the PID
The time data reading means 171 reads the PID number and the alarm generation time in the plant state display data in the alarm state from the plant state display data table 6, respectively. Subsequently, the time monitoring means 17 obtains the rank of the importance degree corresponding to the PID from the importance degree table 7 by the means 172, and determines whether the importance degree is the A rank or not by the importance degree determining means 173. To do. In case of A rank, do nothing,
In cases other than A rank (B and C ranks), the Δt reading means 174 reads the monitoring time Δt corresponding to the PID from the monitoring time table 18. FIG. 14 shows an example of the monitoring time table 18. Next, the calculation means 175
At, the total value (T) of the alarm occurrence time and the monitoring time Δt is calculated. Then, the time indicated by the total value (T) is compared with the current time (T1) by the means 176, and when the current time (T1) has passed the time (T), that is, T <T1.
In the case of, the notification of the importance change is output to the importance changing means 19 as the validity evaluation result of the importance.

Upon receiving the importance change notification, the importance changing means 19 changes the rank of the PID in the importance-based table 7 from B to A or from C to A, and notifies the display data creating means 5 accordingly. Notice. Upon receipt of this notification, the display data creating means 5 sends a start notification to the alarm number data creating means 8 after registering the data in the plant status display data table 6. Hereinafter, the same operation as that of the first embodiment is performed.

After that, when the display data creating means 5 finds out that the PID whose importance has been changed has returned to the normal state from the alarm state, the P data corresponding to the importance is sorted from the initial data table 20 according to importance.
The initial data of the importance level of the ID is read and written in the importance level table 7 to restore the original rank.

In this way, according to this embodiment, the importance can be changed to the PID based on the elapsed time from the alarm generation time to the current time. Therefore, since the importance is not so high originally, the alarm state is set. Even so, it is possible to eliminate the situation in which the response measures by the observers end up being delayed.

In this embodiment, the importance of the PID is changed from B rank to A rank and C rank to A rank after a certain period of time from the alarm generation time. As described above, the rank may be increased by one rank. Conversely, from A to B,
As in the case of A to C, it is possible to provide a function of decreasing the importance only for a specific PID over time. For example,
For PIDs that are important alarms but can be ignored during regular inspections, if the inspection is started immediately after the alarm generation time, the importance of the PIDs may be temporarily lowered during the inspection. Further, in this case, it is possible to set and display a level having a lower importance level than C, which means that it can be ignored during the inspection.

Next, a fourth embodiment according to the present invention will be described. FIG. 15 is a diagram showing the configuration of a plant alarm monitoring apparatus according to the fourth embodiment. In the figure, the same parts as those in FIG. 1 are designated by the same reference numerals.

In the figure, reference numeral 21 is a system type correspondence table in which system types (boiler, turbine, generator, electricity, etc.) for each PID are registered. FIG. 17 shows an example of this system type correspondence table 21. Reference numeral 22 denotes a plant state display data table 6, an importance level table 7 and a system type correspondence table 21, an alarm number data table 9, an importance level storage table 10, and a system level storage table 2.
3 and alarm count data creation means for creating the alarm count data table 24 for each system.

FIG. 16 shows details of the configuration of the alarm number data creating means 22 in this embodiment. First, the alarm number data creating means 22 starts with the PID reading means 221 shown in FIG.
Then, the PID number in the alarm state is searched from the plant state display data table 6. Then, the alarm number data creating means 22 reads the importance level table 7 by the importance reading means 222, and the importance determining means 223 determines the rank of the importance of each PID which is the search result.
The PID number of each rank is registered in the importance degree-based storage table 10. Next, the alarm number data creating means 22 calculates the number of data for each rank by the number data creating means 224, and registers the result in the alarm number data table 9.

Further, the alarm number data creating means 22 reads the system type for the PID from the system type correspondence table 21 by the system reading means 225, and the system type storing means 226 indicates the system type as shown in FIG. 18, for example. The rank is stored in the system-based storage table 23 in association with the PID number. Subsequently, the alarm number data creating means 22 uses the system-specific number data creating means 227 to obtain the number of data of each system type for each rank, and registers the result in the system-based alarm number storage table 24. FIG. 19 shows the configuration of the alarm number storage table 24 for each system.

After that, the display means 11 reads this system-specific alarm number storage table 24 and, for example, as shown in FIG. 20A, on the alarm screen, each system type for each rank (A, B, C). The number of data of (p, q, r, s, t) is displayed in a table format. When an observer selects an arbitrary system type of an arbitrary rank through the keyboard 13 on this alarm screen, the alarm type interaction means 14 causes all PIDs belonging to the rank / system type selected from the system-specific storage table 23. The number is searched and the result is stored in the display request rank storage area 15. When the rank is selected, the data number display area u of the selected rank / system type on the alarm screen is reversely displayed, and a confirmation display of the selection completion is made.

After that, the display data creating means 5 reads the PID numbers one by one from the display request rank storage area 15, and sequentially uses the PID numbers as a key from the plant state display data table 6 to display the time, current value, and alarm limit value. Etc. data search is performed. Then, the display data creating means 5
Adds rank data to these search data and transfers this to the display means 11 as alarm data. As a result, as shown in FIG. 20B, a list of alarm data belonging to the selected rank / system type is displayed in the alarm data display area d of the alarm screen.

Thus, according to the present embodiment, it is possible to display the number of alarm data of each system type for each importance level, and to display a list of the alarm data of the importance level / system type selected by the monitor. Therefore, it is possible to improve the efficiency when the monitoring target is limited to a certain system.

In addition, in the configuration of this embodiment, the defective / scanning exclusion input data number creating means 15 described in the second embodiment is used.
By adding the defect / scan exclusion number data table 16, it is possible to know the defect input and the scan exclusion input for each system.

[0046]

As described above, according to the plant alarm monitoring apparatus of the first aspect of the present invention, the number of plant state display data in the alarm state is displayed separately according to the importance of the alarm. Since data of arbitrarily selected importance can be displayed as a list as alarm data, the number of alarms of each importance can be confirmed at a glance by the monitor while a large number of alarms of various importance occur. It is possible to promptly recognize a situation in which a large number of alarms of particularly high importance are concentrated and generated.

According to the plant alarm monitoring apparatus of the second aspect of the present invention, the number of data in the defective input state and the input excluded state is displayed, and the plant state display data in the arbitrarily selected state is alarmed. Since the list can be displayed as data, it is possible to easily confirm the input points in the defective input state and the input exclusion state.

According to the plant alarm monitoring apparatus of claim 3 of the present invention, the validity of the importance in the importance registration means corresponding to the input point information in the plant state display data is confirmed from the alarm generation time to the present. Evaluate based on time, and if it is judged to be unreasonable, by changing the importance in the importance registration means optimally, for example, even if the original importance is not so high, even if an alarm state occurs. It is possible to eliminate the situation where the response measures by the observer are delayed.

According to the plant alarm monitoring apparatus of claim 4 of the present invention, the number of plant status display data of each system type is displayed for each importance level, and the importance level and system type selected by the monitor member are displayed. Since the data can be displayed as a list as the alarm data, the efficiency can be improved when the monitoring target is limited to a certain system.

[Brief description of drawings]

FIG. 1 is a diagram showing a configuration of a plant alarm monitoring apparatus according to a first embodiment.

FIG. 2 is a diagram showing the configuration of a plant status display data table.

FIG. 3 is a diagram showing the details of the configuration of alarm number data creating means.

FIG. 4 is a diagram showing the structure of a table classified by importance.

FIG. 5 is a diagram showing a configuration of a storage table according to importance.

FIG. 6 is a diagram showing an example of an alarm number data table.

FIG. 7 is a diagram showing an example of an alarm screen according to the first embodiment.

FIG. 8 is a diagram showing a configuration of a plant alarm monitoring apparatus according to a second embodiment.

FIG. 9 is a diagram showing details of the configuration of defective / scanning exclusion input data number creating means.

FIG. 10 is a diagram showing an example of a defect / scan exclusion number data table.

FIG. 11 is a diagram showing an example of an alarm screen according to the second embodiment.

FIG. 12 is a diagram showing a configuration of a plant alarm monitoring apparatus according to a third embodiment.

FIG. 13 is a diagram showing details of the configuration of time monitoring means.

FIG. 14 is a diagram showing an example of a monitoring time table.

FIG. 15 is a diagram showing a configuration of a plant alarm monitoring apparatus according to a fourth embodiment.

FIG. 16 is a diagram showing details of the configuration of an alarm number data creating means in the fourth embodiment.

FIG. 17 is a diagram showing an example of a system type correspondence table.

FIG. 18 is a diagram showing the structure of a system-specific storage table.

FIG. 19 is a diagram showing the configuration of a system-specific alarm count storage table.

FIG. 20 is a diagram showing an example of an alarm screen according to the fourth embodiment.

[Explanation of symbols]

1 ... Plant 2 ... Data scanning means 3 ... Plant data table 4 ... Status judgment table 5 ......... Display data creation means 6 ... Plant status display data table 7 ... Tables by importance 8: Alarm number data creation means 9 ... Alarm number data table 10 ... Saving table by importance 11 ... Display means 12 …… CRT screen 13 ... keyboard 14 ... Alarm type dialogue means 15 ... Display request rank storage area 15a ... Means for creating defective / scanning excluded input data 16: Defect / scan exclusion count data table 17 ... Time monitoring means 18 ... Monitoring time table 19 ... Means for changing importance 20 ... Initial data table by importance 21: System type correspondence table 22 ... Alarm quantity data creation means 23 ... Storage table by system 24: Alarm number data table for each system

─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Shigeyuki Kurakami 1-24-2 Harumi-cho, Fuchu-shi, Tokyo Inside Toshiba System Technology Co., Ltd. (56) Reference JP-A-63-179216 (JP, A) Kaihei 5-174274 (JP, A) JP 7-93682 (JP, A) JP 4-369099 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) G05B 23 / 00-23/02 G08B 23/00-31/00

Claims (4)

(57) [Claims] 1. Display data creating means for judging whether or not there is an alarm state at each input point from data obtained from each input point in a plant, and creating plant state display data including the judgment result and input point information. Storage means for storing the plant status display data created by the display data creating means, importance registration means for registering the importance of the alarm status corresponding to each of the input points, and storage in the storage means Based on the input point information in the plant state display data in the generated alarm state, the importance degree judging means for judging the importance degree of the alarm state by referring to the importance degree registering means, and the judgment of the importance degree judging means Counting means for counting the number of plant status display data for each importance based on the result, and data number display means for displaying the counting result of this counting means in association with each importance Selection means for selecting an arbitrary importance degree from the respective importance degrees displayed by the data number display means, and plant state display data of the importance degree selected by this selection means are retrieved from the storage means. A plant alarm monitoring apparatus comprising: alarm data display means for displaying alarm data. 2. The plant alarm monitoring device according to claim 1, wherein means for adding the presence / absence information of defective input and presence / absence information of input exclusion to the plant state display data and storing the data in the storage means; Second counting means for respectively counting the number of stored plant state display data in the defective input state and the input exclusion state, and the second counting means for displaying the counting result of the second counting means in association with each state. Data number display means, second selection means for selecting any state from the display contents of the second data number display means, and the plant in the state selected by the second selection means. A plant alarm monitoring device further comprising a second alarm data display unit that retrieves status display data from the storage unit and displays the data as alarm data. 3. The plant alarm monitoring device according to claim 1, wherein the importance level in the importance level registration means corresponding to the input point information in the plant status display data in the alarm state stored in the storage means is valid. Further comprising an evaluation means for evaluating the importance based on the elapsed time from the alarm generation time to the present time, and an importance degree changing means for changing the importance degree in the importance degree registration means based on the evaluation result of the evaluation means. A plant alarm monitoring device characterized by: 4. A display for judging the presence or absence of an alarm state at each input point from the data obtained from each input point of each system in the plant, and creating plant state display data including the determination result and the input point information. Data creation means, storage means for storing the plant status display data created by the display data creation means, importance registration means for registering the importance of the alarm status corresponding to each of the input points, System type registration means in which the system type corresponding to each input point is registered, and based on the input point information in the plant state display data in the alarm state stored in the storage means, the importance degree registration means and the system The importance / system type determination means for determining the importance of the alarm state and the system type by referring to the type registration means, and the respective weights based on the determination result of the importance / system type determination means. Counting means for counting the number of plant state display data of each system type for each degree, data number displaying means for displaying the counting result of this counting means in association with the importance and system type, and this data number displaying means Selector means for selecting an arbitrary importance level and system type from each importance level and each system type displayed by, and plant status display data of the importance level and system type selected by this selection means And a warning data display means for displaying the warning data as a warning data.