JP2001022441A - Plant monitoring device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To resolve the cause of the abnormality of a warning, to improve the working rate of a plant and to reduce the burden on an operator. SOLUTION: A warning judgment means 3 compares process data taken in by a process data input means 2 with fixed information such as a unit name, the type of warning, an upper limit value and a lower limit value, which are previously preserved in an input information file 1. When it is judged that abnormality occurs in process data, respective pieces of process data being the cause of the occurrence of warning are collected as warning data. A registration function for writing and preserving the processing method of occurred warning in the registered information area of a warning processing information file 14 at every state of the plant such as a unit state, a temperature and a flow rate and adding new registered warning and the processing method is given to a warning processing means 5 executing a warning processing on warning data.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an alarm that has occurred in the past and a method of coping with the alarm in the event of detecting unsteady abnormalities such as an alarm in a chemical plant such as a waste treatment facility of a power plant or a chemical factory. The present invention relates to a plant monitoring device that registers a database as a database.

[0002]

2. Description of the Related Art In recent years, plants such as waste treatment facilities of power plants and chemical plants such as chemical factories have become larger and larger, and the range of automated operation has been expanding. Automated operation also tends to be complicated with the expansion, and it is important to solve the problem as soon as possible in order to ensure reliability and detect abnormal abnormalities such as alarms.

Conventionally, as a device for monitoring such a plant, a plant monitoring device 200 as shown in FIG.
Has been adopted. The plant monitoring device 200 monitors the state of the plant and captures process data of the plant. The process data input unit 21 and a process that determines whether or not the process data captured by the process data input unit 21 has an abnormality is a predetermined setting. An alarm determining means 22 for determining based on the value, an alarm message history file 23 for storing an alarm message when the alarm determining means 22 determines that there is an abnormality in chronological order, and an alarm message from the alarm message history file 23. A display processing unit 24 for reading and performing display processing, and a display device 2 for displaying a warning message processed by the display processing unit 24 on a display
5 is provided.

In a plant monitoring apparatus having such a configuration, a plurality of books such as a logic diagram are examined by referring to alarm messages stored in chronological order, so that a designer or an operator can clarify a cause of a plant abnormality. Has solved the problem. For example, if the flow rate of the pump A indicates a value equal to or higher than the design value, and it is determined that the flow rate is abnormal, a warning is issued and a warning message having a plurality of OR conditions is displayed. In order to elucidate the cause of the alarm, the alarm message was examined by the designer or operator for each condition, and the alarm was processed.

[0005]

However, in such a plant monitoring device, a complicated alarm, a plurality of alarms,
Alarm messages and logic diagrams alone do not provide enough information to resolve the cause of an abnormality for a new alarm, and designers and operators spend time investigating related books, so the cause of the abnormality is quickly identified. There was a problem that it was not possible.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and can solve the problem of an alarm at an early stage, improve the operation rate of the plant, and reduce the burden on the operator. It is an object to provide a monitoring device.

[0007]

In order to achieve the above object, the present invention comprises a plant monitoring device using the following means.

[0008] The invention corresponding to claim 1 is a process data input means for monitoring the state of a plant and taking in process data of the plant, and storing the process data taken in by the process data input means and an input information file in advance. Alarm determination means for determining whether or not there is an abnormality by comparing the obtained device name, type of alarm, and fixed information such as an upper limit value and a lower limit value, and the alarm determination means determines that the process data has an abnormality. Alarm processing means for collecting each process data causing an alarm as alarm data, and performing alarm processing on the alarm data by an alarm processing method input from an input device; Alarm message history file for storing the alarm messages in chronological order when it is determined that there is An alarm processing information file that saves a method of processing the alarm data processed by the means as an alarm processing content for each equipment state of the plant and a state of a physical quantity such as a plant temperature and a flow rate, and an alarm stored in the alarm message history file. A display processing unit for displaying, on a display device, a message and alarm processing contents stored in the alarm processing information file, wherein the alarm processing unit registers a newly generated alarm and a processing method in the registration information of the alarm processing information file. It has a registration function that can be additionally registered in the area.

According to the plant monitoring apparatus of the invention corresponding to the first aspect, the generated alarm data is associated with the processing method and stored in the alarm processing information file, so that a similar alarm can be generated. For example, when a plurality of alarms are generated, the coping method and the coping time can be reduced by referring to the alarm processing information file generated in the past.

According to a second aspect of the present invention, in the plant monitoring apparatus according to the first aspect, the alarm processing means generates an alarm and an average normal value of each of a plurality of devices related to each other from the input information file. Capture the upper and lower limits, separate the normal range of one device, determine the normal range of the other device, capture the data for the number of scans as the current value, and calculate the correlation between the current values of both devices. It has a parameter analysis function of creating a correlation current value, determining a correlation level, and storing it in the parameter analysis information area of the alarm processing information file.

According to the plant monitoring apparatus of the invention corresponding to claim 2, the correlation level of the device performing the alarm processing and the normal range are stored in the alarm processing information file in association with each other, so that the alarm processing is efficiently performed. be able to. Therefore, when a plurality of alarms are generated, when a complicated alarm is generated, the correlation current value and the correlation level determined from the correlation are determined by referring to the processing method of the alarms generated in the past and the parameter analysis information. Therefore, it is possible to quickly respond to the processing of the alarm.

According to a third aspect of the present invention, in the plant monitoring device according to the first or second aspect,
The alarm processing means captures an average normal value of a plurality of devices related to each other from the input information file, an upper limit value and a lower limit value for generating an alarm, and an operation time, and calculates an average normal value, an upper limit value, and a value up to a lower limit value. σ (A), the current value of each device is set for each fixed time (ΔT) from the operation time, the average during ΔT of the deviation from the normal value is calculated, and the variation of the average is divided for each level. The alarm processing information file has a time-series analysis function for storing the time-series analysis information in the time-series analysis information area.

According to the third aspect of the present invention, the normal value of the device performing the alarm process and the variation level are stored in the alarm processing information file in association with each other. Alarm processing can be performed. In this way, when a plurality of alarms are generated, when a complicated alarm is generated, the level of variation is determined by referring to the processing method of the alarms generated in the past and the time-series analysis information. Since the processing can be performed in a short time, an improvement in the operation rate of the plant can be expected.

According to a fourth aspect of the present invention, in the plant monitoring apparatus according to the first to third aspects of the present invention, the alarm processing means includes a part for designing equipment of the plant even if the contents of the alarm are the same. The control parameter correction function of correcting the operation control parameter of the device in the alarm and the alarm processing method related to the target change and storing the correction in the correction information area of the alarm processing information file.

According to the plant monitoring apparatus of the invention corresponding to the fourth aspect, there is provided a device for appropriately performing an alarm process in response to a change in a plant state such as a change in characteristics of a device or piping over time or a new change. The control set value can be corrected.

According to a fifth aspect of the present invention, in the plant monitoring device according to the first aspect of the present invention, the alarm processing means performs an operation performed by an operator, an operation state, and an alarm processing of the operator. It has an operator operation history function of judging the difficulty level of the alarm processing operation at the operation level based on the number of operations and the operation frequency, and storing it in the operator operation area of the alarm processing information file.

According to the plant monitoring apparatus of the invention corresponding to claim 5, the operation actually performed by the operator and the alarm processing method are associated with each other and stored in the alarm processing information file. In this way, when similar alarms are generated, multiple alarms are generated, etc., by referring to the list of alarm processing methods that have occurred in the past, alarms that cannot be solved only by alarm messages or logic diagrams accumulated in chronological order Processing information can be added, and new alarm patterns can be disclosed. Further, an alarm processing method based on the experience of the operator, which has not been recorded, can be stored.

According to a sixth aspect of the present invention, in the plant monitoring apparatus according to any one of the first to third and fifth aspects of the present invention, the alarm processing means may output a larger alarm than the input information file. Alarm classification information such as alarms and small alarms, correlation levels obtained by the parameter analysis function, variation levels obtained by the time-series analysis function, and operation levels obtained by the operator operation history function are incorporated, making it difficult to perform alarm processing. It has a classification function of classifying the degrees for each alarm processing level and storing the degrees in the classification information area of the alarm processing information file.

According to the plant monitoring apparatus of the invention corresponding to claim 6, the importance of the alarm and the alarm processing level are stored in the alarm processing information file in association with each other. Thus, when a plurality of alarms are generated, a pattern of alarms with high importance and urgency can be known by referring to a list of alarm processing methods generated in the past, and the cause can be specified.

According to a seventh aspect of the present invention, in the plant monitoring apparatus according to the first aspect of the present invention, the alarm processing means is configured to determine, based on the input information file, an average normality of the devices related to each other. The values, the upper and lower limits at which an alarm occurs, and the operation time are taken in. It has a prediction function of predicting the time at which the next warning will occur based on the value, and predicting the warning processing method of the next warning in the prediction information area of the warning processing information file.

According to the plant monitoring apparatus of the present invention corresponding to claim 7, the alarm which may occur and the alarm processing method are stored in the alarm processing information file in association with each other. As a result, it is possible to predict the process data that may cause an alarm before an alarm is generated by referring to a list of similar alarms and alarm processing that have occurred in the past before the alarm is generated, and take measures before the alarm is generated. Can be.

According to an eighth aspect of the present invention, in the plant monitoring apparatus according to any one of the first to seventh aspects, the alarm processing means stores the alarm processing registration sheet having performed the alarm processing. It has a form function for printing.

According to the plant monitoring apparatus of the invention corresponding to the eighth aspect, it is possible to confirm whether or not there is a possibility that a similar alarm will be generated in another plant, and it is possible to collectively arrange the alarm processing method with complete contents. Also, when multiple alarms occur, even if similar alarms occur in similar plants,
Since the processing order is determined from which device the processing is performed, the processing time can be reduced.

[0024]

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

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

In FIG. 1, a plant monitoring device 100
Is an input information file 1 in which device names, types of alarms, upper limit values, lower limit values, etc. are registered in advance, process data input means 2 for monitoring the state of the plant and taking in process data of the plant, and process data input means 2 Comparing the process data taken into the input information file 1 with the related data in the input information file 1 to determine whether or not there is an abnormality. And an alarm message history file 4 that stores the sequence order.

Only when the alarm judging means 3 judges that there is an abnormality, the alarm processing means 5 which collects each process data causing the alarm and performs the alarm processing is used to register the alarm processing. Function 6, a parameter analysis function 7 for analyzing parameters related to a method of coping with an alarm, a time series analysis function 8 related to a method of coping with an alarm of an alarm processing information file, an alarm and a warning of a partial change in device design The correction function 9 for correcting the operation control parameters of the equipment in the processing method, the degree of difficulty of the alarm processing operation based on the operation performed by the operator and the operation state, the number of operations performed by the operator and the frequency of the operation, and the operation level. A driving operation history function 10 to judge and register, a classification function 11 for classifying the difficulty of the alarm processing method for each alarm processing level, and a next alarm based on the current value. Predicting a time to live, prediction function 12 for predicting the alarm processing method of the next alarm is form function 13 to print the alarm processing registration sheet was subjected to alarm processing is provided.

Further, an alarm processing information file 14 for registering an alarm processing method subjected to an alarm processing using each function of the alarm processing means 5, an alarm message from the alarm message history file 4, and an alarm processing method from the alarm processing information file 14. A display processing unit 15 that reads out
A display device 16 is provided for displaying the warning message processed by the display processing unit 15 on a display. The display device 16 includes an input device 17.
Various kinds of information are input to the alarm processing means 5.

In the above configuration, the process data input means 2, the alarm determination means 3, the alarm message history file 4, the alarm processing means 5 having various functions to 13, the alarm processing information file 14, and the display processing unit 15 The device 100 is configured.

Here, in the input information file 1, as shown in FIG. 2, an area for each input information data includes an "apparatus name" such as "pump A", an "operating time", for example, "Average normal" like "XXXXt / h",
The “upper limit value” and the “lower limit value”, for example, “alarm classification” such as the alarm state of the pump A such as “general medium alarm” are stored.

As shown in FIG. 3, the alarm processing information file 14 includes, as an alarm processing method, an “apparatus name” such as “pump A”, “registration information” for performing alarm processing, and “parameter information”. “Analysis information”, “time-series information”, “correction information”, “operator operation history information”, “classification information”, “prediction information”, and “form information” are stored.

FIG. 4 shows an example of a display screen for inputting an alarm processing method. In FIG. 4, “registration information” for performing an alarm process is denoted by 301, “parameter analysis information” is denoted by 302, “time-series information” is denoted by 303, “correction information” is denoted by 304, and “operator operation information”. To 305,
"Classification information" in 306, "prediction information" in 307,
“Form information” is displayed at 308.

Next, the operation of the plant monitoring apparatus configured as described above will be described with reference to FIGS.

In FIG. 5, the plant is monitored, the process data of the plant is fetched from the process data input means 2, and the processing method of the alarm generated in the plant is changed to the equipment state,
Alarm judgment means 3 for each plant state such as temperature and flow rate
(501). The alarm judging means 3 compares the file information such as the device name, alarm type, upper limit value, lower limit value, etc. already taken from the input information file 1 with the input process data (502). Only when the judgment is made (503), each process data that causes an alarm is collected as alarm data.

The alarm judging means 3 judges whether or not the alarm processing has been performed (504). If the alarm processing has not been performed, the alarm function is registered by using the registration function 6. As shown in FIG. 4, the processing method for performing the processing for the alarm is input to 301 of the alarm processing display screen 300 (50).
5). Then, the data sheet number 601 is written (507) in the registration information area 600 of the alarm processing information file 14 shown in FIG. It is determined whether all the alarms have been resolved (506), and if it is necessary to add a processing method, the processing method of the next generated alarm is displayed on the alarm processing screen 3
00 can be used for additional input.

Thus, the generated alarm data and its processing method are stored in the alarm processing information file 14 in association with each other, so that when a similar alarm is generated or a plurality of alarms are generated, the alarm data is stored in the past. The coping method and the coping time can be reduced by referring to the generated alarm processing information file.

Next, parameter analysis processing using the parameter analysis function 7 of the alarm processing means 5 will be described with reference to FIGS.

In FIG. 7, information on the related equipments A and B, for example, the average normal values of the pumps A and B are obtained from the input information file 1 in which the information on the plant equipment such as the stirrer, the pump and the valve is stored. Then, the upper limit value and the lower limit value at which an alarm is generated are captured (701).

When these values are taken in, the normal range of the pump A is divided into A1 to A5 as shown in FIG. 8, and the normal range of the pump B is determined (702). The data for the X times of the scans of the pumps A and B are fetched as current values (703), and a correlation is created from the current values of the pumps A and B to create correlation current values C1 to CX. From the current correlation values C1 to CX, the upper limit curve 702 or the lower limit curve 7
The values in the X-axis and Y-axis directions up to 03 are added, and the values are divided into five, and correlation levels 1 to 5 are determined from the smaller added value (707).

When these correlation levels are determined, FIG.
As shown in the figure, the correlation level and the added value, pump A, pump B
Is stored in the parameter analysis information area 900 in the alarm processing information file 14.

Thus, the correlation level of the device performing the alarm process and the normal range are stored in the alarm processing information file in association with each other, so that the alarm process can be performed efficiently. Therefore, when a plurality of alarms are generated, when a complicated alarm is generated, the correlation current value and the correlation level determined from the correlation are determined by referring to the processing method of the alarms generated in the past and the parameter analysis information. Therefore, it is possible to quickly respond to the processing of the alarm.

Next, a time series analysis process using the time series analysis function 8 of the alarm processing means 5 will be described with reference to FIGS.

In FIG. 10, the average normal value, the upper limit value, the lower limit value, and the operation time of the pumps A and B are fetched from the input information file 1 (1001). Average normal and upper limit,
A value up to the lower limit is defined as σ (A), and an average normal value curve B = f (A) (1101) as shown in FIG. 11, an upper limit curve (1102) obtained from the upper limit, and a value obtained from the lower limit. The normal value σ (A) of the pump A is determined from the lower limit curve (1103) (1002).

The current value of the pump A is set to Ai and the current value of the pump B is set to Bi at every predetermined time (ΔT) obtained from the operation time (1003). After performing this n times (100
4) The average of ΔT of the deviation from the normal value is calculated using an arithmetic expression (1005).

As shown in FIG. 12, when 1 <average variation <2, the variation level is 1, 2 <average variation <
In the case of 3, variation levels are divided into 2 and 3 and in the case of <average variation, each variation level 3 is classified (1006). As shown in FIG. 13, this variation level is set to 130 in the time-series analysis information area 1300 in the alarm processing information file 14.
Save to 1.

Thus, the normal value and the variation level of the device that performs the alarm process are stored in the alarm processing information file in association with each other, so that the alarm process can be performed according to the degree of the alarm. Therefore, when multiple alarms are generated, when complex alarms are generated, etc., by referring to the processing method of the alarms generated in the past and the time series analysis information, the dispersion level is determined, and the processing is performed before the alarm is generated. Since it is possible to respond, it is expected that the operation rate of the plant will be improved.

Next, a correction process using the correction function 9 of the alarm processing means 5 will be described with reference to FIGS.

In FIG. 14, the upper limit value and the lower limit value are taken from the input information file 1 (1402). Even if the contents of the alarm are the same, if the countermeasure for the alarm is newly changed due to a partial change in the device design such as the pump and the piping of the plant, the value is compared with the value of 1402 (1401).

If the upper limit value and the lower limit value are different, the corrected upper limit value is corrected as a corrected upper limit value, and the changed lower limit value is corrected as a corrected lower limit value (1404). The correction upper limit value and the correction lower limit value are written in the correction information area shown in FIG. 15 of the alarm processing information file 14 (1405). As shown in FIG. 4, a display is made on the alarm processing display screen 304.

Thus, it is possible to correct the control set value of a device or the like that appropriately performs an alarm process in response to a change in the plant state, such as a change in characteristics of the device or piping due to aging, or a new change.

Next, a driving operation history registration process using the driving operation history registration function 10 of the alarm processing means 5 will be described with reference to FIGS.
This will be described with reference to FIG.

In FIG. 16, first, the contents of the operation actually performed by the operator are registered in the alarm processing registration sheet 305 shown in FIG. 4 (801). The difficulty level of the alarm processing operation is determined in five operation levels from operation level 1 to operation level based on the driving state, the number of operations performed by the operator for performing the alarm processing, and the operation frequency (802).
As shown in FIG. 17, this operation content and operation level are stored in the operator operation area of the alarm processing information file 14 (803).

Thus, the operation actually performed by the operator and the alarm processing method are associated with each other and stored in the alarm processing information file. Therefore, by referring to the list of alarm processing methods that have occurred in the past, such as when similar alarms are generated or when multiple alarms are generated, alarm processing that cannot be solved only by alarm messages or logic diagrams accumulated in chronological order Information can be added and new alarm patterns can be disclosed. Further, an alarm processing method based on the experience of the operator, which has not been recorded, can be stored.

Next, classification processing by the classification function 11 of the alarm processing means 5 will be described with reference to FIGS.

In FIG. 18, alarm classification information such as a large alarm, a medium alarm, and a small alarm is fetched from the input information file 1 (1801). Further, the correlation level is acquired from the parameter analysis area of the alarm information file 14 (1802). Further, the operation level is taken from the operator operation area (18
04). Based on these information, the difficulty level of the alarm processing method is classified into alarm processing levels 1 to 5 (1
805), as shown in FIG.
4 is stored in the classification information area (1806). And
As shown in FIG. 4, a display is made on the alarm processing display screen 306.

Thus, the importance of the alarm and the importance, difficulty, and urgency of the alarm processing method are stored in the alarm processing information file in association with each other. Therefore, by referring to a list of alarm processing methods that have occurred in the past, such as when a plurality of alarms have occurred, a pattern of an alarm with a high degree of importance and urgency can be known, and the cause thereof can be specified.

Next, the prediction processing by the prediction function 12 of the alarm processing means 5 will be described with reference to FIGS.

In FIG. 20, the average normal value, upper limit value, lower limit value, and operation time of the pump A are fetched from the input information file 1 (2001). According to FIG. 21, the T time and the rate of change of the measured value C are calculated using the formula yc / xc (2002).
The change rate of the T time and the upper limit change point D is calculated using Expression 2107, and is set as the upper limit change rate, and the change rate of the lower limit change point E is set as the lower limit change rate (2003).

Next, the upper limit change rate and the change rate are compared (2).
004). When the upper limit change rate> the lower limit change rate, the time when the abnormal state occurs is calculated from the current value and the change rate, and is set as the upper limit predicted time. As shown in FIG.
In the prediction information area No. 4, the change rate is written in 2201 and the upper limit prediction time is written in 2202. Further, the lower limit change rate and the change rate are compared (2006). When the lower limit change rate> the change rate, the time at which the abnormal state occurs is calculated from the current value and the change rate, and is set as the lower limit predicted time. As shown in FIG.
In the prediction information area of the alarm processing information file 14, the change rate is written in 2201 and the lower limit prediction time is written in 2202.

Thus, the estimated time that may occur and the alarm processing method are stored in the alarm processing information file in association with each other. Therefore, it is possible to predict the occurrence time of an alarm that may occur next before an alarm is generated, and to deal with the alarm before the alarm is generated by referring to the similar alarms generated in the past and the alarm processing list.

Next, the form processing by the form function 13 of the alarm processing means 5 will be described with reference to FIGS.

In FIG. 23, a form is output using a print command 307 of an alarm processing registration sheet (FIG. 4) in which an alarm is generated, the cause is completely identified, and the alarm processing process is registered until the cause is solved (2301). . As shown in FIG. 24, the form output date is written in the form information area 2401 of the alarm processing information file 14.

As a result, it is possible to confirm whether or not there is a possibility that a similar alarm will be generated in another plant, and the alarm processing method can be collectively arranged with complete contents. When multiple alarms occur, even if similar alarms occur in similar plants, the processing order is determined with reference to the form output,
Processing time can be reduced.

[0064]

As described above, according to the present invention, it is possible to provide a plant monitoring device which can solve the cause of the abnormality for the alarm at an early stage, improve the operation rate of the plant, and reduce the burden on the operator. .

[Brief description of the drawings]

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

FIG. 2 is a diagram showing fixed information stored in an input information file in the embodiment.

FIG. 3 is a diagram showing storage information of an alarm processing information file in the embodiment.

FIG. 4 is a diagram showing an example of a screen for displaying an alarm process in the embodiment.

FIG. 5 is a flowchart for explaining a registration function of the alarm processing unit according to the embodiment;

FIG. 6 is a diagram showing a registration information area of the alarm processing information file.

FIG. 7 is a flowchart for explaining a parameter analysis function of the alarm processing unit according to the embodiment;

FIG. 8 is a correlation curve graph for explaining the parameter analysis function.

FIG. 9 is a diagram showing a parameter analysis information area of the alarm processing information file.

FIG. 10 is a flowchart for explaining a time-series analysis function of the alarm processing unit according to the embodiment;

FIG. 11 is a correlation curve graph for explaining the time-series analysis function.

FIG. 12 is a graph showing variation levels for explaining a time-series analysis function.

FIG. 13 is a diagram showing a time-series analysis information area of the alarm processing information file.

FIG. 14 is a flowchart illustrating a correction function of the alarm processing unit according to the embodiment;

FIG. 15 is a diagram showing a correction information area of the alarm processing information file.

FIG. 16 is a flowchart for explaining a driver operation history function included in the alarm processing means in the embodiment.

FIG. 17 is a diagram showing an operator operation information area of the alarm processing information file.

FIG. 18 is a flowchart for explaining a classification function of the alarm processing unit according to the embodiment;

FIG. 19 is a diagram showing a classification information area of the alarm processing information file.

FIG. 20 is a flowchart for explaining a prediction function of the alarm processing unit according to the embodiment;

FIG. 21 is a graph showing the relationship between the equipment and the operation time.

FIG. 22 is a diagram showing a prediction information area of the alarm processing information file.

FIG. 23 is an exemplary flowchart for explaining a form function included in the alarm processing unit according to the embodiment;

FIG. 24 is a diagram showing a form information area of the alarm processing information file.

FIG. 25 is a block diagram showing a conventional plant monitoring device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Input information file 2 ... Process data input means 3 ... Warning judgment means 4 ... Warning message history file 5 ... Warning processing means 6 ... Registration means 7 ... Parameter analysis means 8 ... Time series analysis means 9 ... Correction means 10 ... Operator Operation history function 11 ... Classification means 12 ... Prediction function 13 ... Form function 14 ... Alarm processing information file 15 ... Display processing unit 16 ... Display device 17 ... Input device

Continued on the front page F-term (reference) 2G075 AA02 AA18 BA03 CA02 DA18 EA01 EA05 FB07 FB09 FB17 FC04 FD01 GA15 GA16 GA34 5C087 AA02 AA04 AA08 AA19 DD03 DD08 DD21 DD27 EE05 EE06 EE07 GG14 GG31 AGG03 FF06

Claims (8)

[Claims] 1. Process data input means for monitoring a state of a plant and taking in process data of the plant, process data taken in by the process data input means, and device names and alarms previously stored in an input information file. An alarm judging means for judging the presence or absence of an abnormality by comparing with fixed information such as a type, an upper limit value and a lower limit value. If the alarm judging means judges that there is an abnormality in the process data, an alarm is generated. An alarm processing unit that collects each process data as alarm data, performs an alarm process on the alarm data by an alarm processing method input from an input device, and when the alarm determination unit determines that the process data is abnormal. An alarm message history file for storing the alarm messages in chronological order; and an alarm data processed by the alarm processing means. An alarm processing information file that saves the processing method of the data as the alarm processing content for each of the equipment state of the plant and the state of the plant temperature, physical quantity such as flow rate,
A display processing unit for displaying, on a display device, an alarm message stored in the alarm message history file and alarm processing contents stored in the alarm processing information file, wherein the alarm processing unit generates a newly generated alarm and processes A plant monitoring apparatus having a registration function capable of additionally registering a method in a registration information area of the alarm processing information file. 2. The plant monitoring apparatus according to claim 1, wherein the alarm processing means captures an average normal value of each of a plurality of devices related to each other and an upper limit value and a lower limit value at which an alarm is generated from the input information file. The normal range of one device is divided, the normal range of the other device is determined, the data of the number of times of scanning are taken in as the current value, and the correlation current value is created from the correlation between the current values of both devices. A plant monitoring apparatus having a parameter analysis function of determining a correlation level and storing the correlation level in a parameter analysis information area of the alarm processing information file. 3. The plant monitoring apparatus according to claim 1, wherein the alarm processing means includes an average normal value of each of a plurality of devices related to each other based on the input information file; The lower limit value and the operation time are taken in, the average normal value, the upper limit value, and the value up to the lower limit value are defined as σ (A). A plant monitoring apparatus having a time-series analysis function for calculating an average during a shift ΔT, dividing the average dispersion for each level, and storing the average variation in a time-series analysis information area of the alarm processing information file. 4. The plant monitoring device according to claim 1, wherein the alarm processing unit is configured to change the alarm by partially changing the equipment design of the plant even when the contents of the alarm are the same. A plant monitoring apparatus having a control parameter correction function of correcting an operation control parameter of a device in a related alarm and an alarm processing method and storing the operation control parameter in a correction information area of the alarm processing information file. 5. The plant monitoring apparatus according to claim 1, wherein the alarm processing means performs an alarm processing operation based on an operation performed by an operator, an operation state, the number of operations performed by the operator, and an operation frequency. A plant monitoring device having an operator operation history function of judging a difficulty level at an operation level and storing it in an operator operation area of the alarm processing information file. 6. The plant monitoring apparatus according to claim 1, wherein the alarm processing unit is configured to output alarm classification information such as a large alarm, a medium alarm, and a small alarm from an input information file. And the correlation level obtained by the parameter analysis function, the variation level obtained by the time series analysis function, and the operation level obtained by the operator operation history function, and classify the difficulty of the alarm processing method for each alarm processing level. A classification function for saving the classification information in the classification information area of the alarm processing information file. 7. The plant monitoring apparatus according to claim 1, wherein the alarm processing unit calculates an average normal value of devices related to each other from an input information file, and an upper limit value and a lower limit value for generating an alarm. Value, operation time, and the measured value and the rate of change of T time,
Using the upper limit change point and the rate of change of the T time, and the lower limit change point and the rate of change of the T time, predict the time at which the next warning will occur from the current value, and predict the warning processing method of the next warning. A plant monitoring device having a prediction function of saving in an information area. 8. The plant monitoring apparatus according to claim 1, wherein said alarm processing means has a form function for printing an alarm processing registration sheet on which an alarm processing has been performed. Plant monitoring equipment.