JP4374319B2 - Plant operation support device - Google Patents

Description

This invention relates to pulp plant driving support device to support the operation of the plant, such as water and sewage plants.

  In a plant monitoring and control system that monitors and controls a plant using a conventional CRT display device, the operating state and sensor measurement values of various devices in the plant are displayed. When the set alarm value is exceeded, an alarm is displayed. The alarm display displays the alarm information that is generated in the order in which they occurred, and the color is changed according to the level of importance determined in advance for each alarm. It was difficult to determine whether it was important.

  In response to this problem, as proposed in Japanese Patent Application Laid-Open No. 7-272183, the plant operation support apparatus uses a membership function of a fuzzy operation according to a trend of change in the process amount of an alarm to be monitored, and an abnormal state is detected. There are those that obtain the degree and change the importance dynamically.

Japanese Patent Laid-Open No. 7-272183 (FIG. 3 and its description)

  In the conventional monitoring control system as described in Patent Document 1, the importance level of the alarm is determined based on the change trend of the process amount in an abnormal state and is dynamically changed. It was not possible to make a judgment of importance in combination with the state. For example, in a sewage treatment plant, even if an alarm for an increase in rainfall intensity occurs, if the water level of the inflow droop or pump well is low, the operator does not need to take immediate action, but if the water level is high, the pump Immediate action is required such as additional operation. Therefore, even if the same rainfall intensity increase alarm occurs, it is necessary for the operator to judge the importance by combining the state of the measured values such as other water levels.

  The present invention has been made in view of the above-described circumstances, and an object thereof is to enable more appropriate plant operation support.

The plant operation support apparatus according to the present invention includes a fuzzy rule database in which rules for evaluating the degree of importance comprehensively from a plurality of measurement values, a plant data input I / F for inputting measurement values of devices constituting the plant, and an alarm. An importance determination unit that collectively evaluates the importance of the alarm according to the rules of the fuzzy rule database from a plurality of measurement values related to the alarm among the measurement values input from the plant data input I / F at the time of occurrence; And a plant operation support apparatus comprising an alarm display unit that displays a plurality of alarms that have occurred at the same time together with a comprehensive importance rating result by the importance level determination unit,
An operation history database that stores the alarms that have occurred and the operation records of the devices that responded to the alarms is provided, and the device operations that correspond to the past relevant alarms stored in the operation history database are rated as a rating of the importance of each alarm. Used as an element,
A plurality of device operation information corresponding to past relevant alarms stored in the operation history database is displayed as additional information on the alarm display unit,
By selecting on the screen from the plurality of device operation information, an operation command is output to the selected plant component device,
Each of the plurality of device operation information is added with a display for distinguishing the operated information from the unoperated information.

The present invention provides a fuzzy rule database in which a rule for comprehensively evaluating importance from a plurality of measured values is set, a plant data input I / F for inputting measured values of devices constituting the plant, and the plant data input when an alarm is generated An importance determination unit that comprehensively evaluates the importance of the alarm based on the rules of the fuzzy rule database from a plurality of measurement values related to the alarm among the measurement values input from the I / F, and a plurality of simultaneous occurrences A plant operation support apparatus comprising an alarm display unit for displaying an alarm together with a comprehensive importance rating result by the importance determination unit,
An operation history database that stores the alarms that have occurred and the operation records of the devices that responded to the alarms is provided, and the device operations that correspond to the past relevant alarms stored in the operation history database are rated as a rating of the importance of each alarm. Used as an element,
A plurality of device operation information corresponding to past relevant alarms stored in the operation history database is displayed as additional information on the alarm display unit,
By selecting on the screen from the plurality of device operation information, an operation command is output to the selected plant component device,
Since the plant operation support device is characterized in that each of the plurality of device operation information is added with a display for distinguishing between operated and unoperated ones, more appropriate plant operation support is provided. There is an effect that can.

Reference Example 1
Reference Example 1 of the present invention will be described below with reference to FIGS. FIG. 1 is a block diagram showing an example of the overall schematic configuration of the plant monitoring control system and the plant operation support apparatus, and FIG. 2 is a flowchart showing an example of the operation of the plant operation support apparatus in FIG.

  In FIG. 1, a plant operation support apparatus 1 for a plant such as a water treatment plant includes a plant data input I / F 11 for inputting various plant alarms and sensor measurement values collected by a controller 3 from a plant data way 2, and a plurality of plant data input I / Fs 11. When an alarm is generated simultaneously, an importance determination unit 12 that determines the importance of an alarm that is occurring, a fuzzy rule database 13 that stores a fuzzy rule for determining the importance, and an alarm that is occurring The alarm display unit 14 displays the items with the highest importance.

  The sensor measures various states of equipment 41, 41, 43,... Of the plant such as pumps, valves, etc., and monitors the state of the plant based on the measured value that is the output, The devices 41, 41, 43,... Are controlled, and an alarm is generated.

  Next, the operation of the plant operation support apparatus 1 in FIG. 1 will be described with reference to FIG.

  In FIG. 2, the importance level determination unit 12 periodically reads plant measurement values from the plant data input I / F 11 (step ST <b> 11), and corresponds to each measurement value stored in the fuzzy rule database 13. The membership function is applied to normalize the state of the measurement values in several stages, such as high / slightly high / normal / slightly low / low, to a value of 0.0 to 1.0 (step ST12).

  Next, an alarm that is occurring is acquired from the plant data input I / F 11 (step ST13), and the importance is comprehensively determined from the normalized index values of a plurality of measured values for each alarm related to each alarm. In order to determine, a fuzzy operation corresponding to each alarm signal using the fuzzy rules stored in the fuzzy rule database 13 (for example, “the measured value X is high and the measured value Y is low, the importance is high”). To evaluate the importance of the alarm (step ST14).

  Finally, the alarm display unit 14 inputs the importance level of the alarm evaluated by the importance level determination unit 12, and displays the alarm importance level together with the rating importance level for each alarm in the order of importance as shown (step). ST15).

As described above, in Reference Example 1 of the present invention, the importance level determination unit 12 periodically acquires the measured value of the plant from the plant data input I / F 11 to determine the state of the plant. As described above, it is possible to judge the importance from multiple process quantities (measured values) related to the alarm in the middle, and display the result of rating the importance of each alarm along with the alarms. By doing so, more appropriate plant operation support can be provided.

Further, in the first reference example of the present invention, as described above, when alarms are generated at the same time in the plant monitoring control system, for each alarm, a comprehensive importance is calculated from a plurality of measured values related to each alarm. And a fuzzy rule database 13 in which a rule for comprehensively evaluating the importance from a plurality of measured values is set, a device 41 constituting the plant, The plant data input I / F 11 for inputting measured values 42, 43,..., And the fuzzy from a plurality of measured values related to the alarm among the measured values input from the plant data input I / F 11 when an alarm occurs. Importance determination unit 12 that comprehensively evaluates the importance of the alarm according to the rules of the rule database 13 and the simultaneous occurrence Since the plant operation support apparatus is provided with the alarm display unit 14 that displays a number of alarms together with the overall importance rating result by the importance level determination unit 12, as described above, the importance rating result is displayed together with each alarm. More appropriate plant operation support can be provided by displaying or sequentially displaying important alarms.

  For example, in a sewage treatment plant, rainwater, domestic wastewater, and the like flow in, the rainwater and domestic wastewater, etc. that flow in are received by an inflow trough and a pump well, pumped by a pump, and processed. In such a sewage treatment plant, if an alarm for an increase in rainfall intensity occurs, there is still room to accept inflow water if the water level of the inflow droop or pump well is low. There is no need to make an alarm, and the importance of the alarm of rising rainfall intensity is low. On the other hand, if the water level of the inflow dredge or pump well is high, there is a risk that water will overflow from the inflow dredge or pump well due to an increase in the amount of inflow due to increased rainfall intensity. There is a high importance of the alarm of rising rainfall intensity.

According to the reference example 1 of the present invention described above, when applied to the sewage treatment plant as described above, the plant operation support device has the above-described “increased rainfall intensity”, “water level of inflow dredge and pump well”, etc. The degree of importance of the alarm can be determined comprehensively from the plurality of process values and process information, and more appropriate plant operation support can be provided. Also, the judgment basis for judging the degree of importance of the alarm, for example, “Rainning intensity rises and water level is low”, “Rainning intensity rises and water level is high”, etc. are displayed in association with the degree of alarm importance. In this way, if the basis for determination is also displayed in association with the degree of importance of the alarm, the plant operation support device can further support plant operation.

Reference Example 2
A reference example 2 of the present invention will be described below with reference to FIG. 2 showing an example of the overall schematic configuration of a plant monitoring control system and a plant operation support apparatus.

In the above-described reference example 1 of the present invention, the importance level determination unit 12 periodically collects data from the plant data I / F 11 and comprehensively determines the importance level based on a plurality of process quantities relating to an alarm that is occurring. As described above, in Reference Example 2 of the present invention, as shown in FIG. 3, the operation history database 15 is installed in the plant operation support apparatus 1, and the generated alarm and the operation record of the device corresponding to the alarm are recorded. From the plant data input I / F 11, the operation history database 15 stores the operation occurrence date and time together.

Further, the importance level determination unit 12 searches and extracts the past occurrence history from the operation history database 15 for the alarm that is occurring. Next, before and after (predetermined time) before and after (predetermined time) the occurrence of a past alarm, the number of occurrences of device operation by the operator is counted to obtain the average number of times of device operation when one alarm is generated. Since alarms with a lot of past device operations are considered to be important alarms for operators, the number of operations before and after the occurrence of alarms in the past history is used as input for fuzzy calculations, and evaluation based on fuzzy rules is performed. Incorporated as a rating element and reflected in fuzzy judgment of importance. By displaying this result from an important alarm as in Reference Example 1, it is possible to provide more appropriate plant operation support in line with actual operation.

Further, as described above, the reference example 2 of the present invention includes the operation history database 15 that stores the generated alarm and the operation record of the device in response to the alarm, and the past corresponding alarm stored in the operation history database 15. As described above, the device operation in response to is used as one evaluation factor of the importance of each alarm, and as described above, it is possible to provide more appropriate plant operation support in line with actual operation.

Reference Example 3.
Reference Example 3 of the present invention will be described below with reference to FIG. 4 showing a screen display example of the plant operation support apparatus.

In Reference Example 2, the case where the operator's device operation before and after the occurrence of a past alarm is recorded in the operation history database 15 and the number of operations is reflected in the importance determination has been described. Reference Example 3 of the present invention Then, the average number of times of device operation in each alarm is obtained, and when an alarm is generated in the alarm list display 5 of the alarm display unit 14 as shown in FIG. As shown, an alarm-related operation display 61 is displayed.

  In the alarm-related operation display 61, as shown in the figure, the operation devices by the operator before and after the occurrence of the past alarm are displayed in a window with the average number of operations in descending order of the number of operations.

  Thus, by displaying 61 the device operation frequency information performed before and after the occurrence of the corresponding alarm in the past as additional information on the alarm display unit 14, what operation should be performed next to the operator. Can be shown as guidance, and more appropriate plant operation support can be provided.

Further, in Reference Example 3 of the present invention, as described above, a plurality of pieces of device operation information corresponding to past relevant alarms stored in the operation history database 15 are displayed on the alarm display unit 14 as additional information. As described above, as described above, the operator can be instructed as to what operation should be performed next, and more appropriate plant operation support can be provided.

Reference Example 4
Reference Example 4 of the present invention will be described below with reference to FIGS. FIG. 5 is a block diagram showing an example of the overall schematic configuration of the plant monitoring control system and the plant operation support device, and FIG. 6 is a diagram showing a screen display example of the plant operation support device in FIG.

In the above-mentioned Reference Example 3 of the present invention, the case where the device operation performed before and after the occurrence of the corresponding alarm in the past is displayed as additional information on the alarm list display 5 as the alarm-related device operation frequency information 61 has been described. In Reference Example 4 of the present invention, as shown in FIG. 5, an equipment operation command output I / F 16 for executing the operation of the equipment selected on the alarm display unit 14 is provided in the plant operation support apparatus 1 and shown in FIG. If the device operation is selected from the alarm-related operation display 62 as shown in the figure, for example, “Generator No. 1 operation” is selected and “OK” is clicked, the operation target device is selected, and the selected operation is selected. An operation command to the target device is output from the device operation command output I / F 16, and the selected operation target device is operated via the plant gateway 2 and the controller 3. Divide so as to.

Thus, according to the reference example 4 of the present invention, the operator can select and execute the equipment operation that is often performed before and after the alarm described in the above-described reference example 3 of the present invention. Since the control operation of the device corresponding to the alarm can be easily performed, it is possible to respond quickly to the alarm.

In addition, in Reference Example 4 of the present invention, as described above, an operation command is output to the selected plant component device by selecting on the screen from the plurality of device operation information. As mentioned above, the operator can select and execute equipment operations that are often performed before and after the alarm, and the control operation of the equipment corresponding to the alarm can be easily performed. Can respond quickly.

Embodiment 1 FIG.
Hereinafter, Embodiment 1 of the present invention will be described with reference to FIG. 7 showing a screen display example of the plant operation support apparatus.

In the above-described Reference Example 3 of the present invention, the case has been described in which the operation display performed in the past before and after the occurrence of the corresponding alarm is performed as additional information on the alarm display unit. Since there is no need to prompt the operator to operate the already-operated device, in the first embodiment of the present invention, as shown in FIG. 7, the device operation performed within a certain time before the occurrence of the current alarm is searched. The corresponding item is displayed as an executed device operation in the alarm-related operation display 63, and a display for distinguishing an unexecuted device operation from an executed device operation is added or the display color is changed. And so on.

  By doing so, the device operation that needs to be performed is clarified, the device control operation corresponding to the alarm can be easily performed, and more appropriate plant operation support can be provided.

In the first embodiment of the present invention, as described above, the display for distinguishing the operated information from the unoperated information is added to each of the plurality of device operation information. Thus, the device operation that needs to be performed is clarified, the control operation of the device corresponding to the alarm can be easily performed, and more appropriate plant operation support can be provided.

1 to 7 described above, the same reference numerals in the drawings indicate the same or corresponding parts. Further, in the above-described Reference Examples 1 to 4 and Embodiment 1 of the present invention, the description in the later Reference Example and Embodiment 1 is omitted for the matters described in the previous Reference Example .

It is a figure which shows the reference example 1 of this invention, and is a block diagram which shows an example of the schematic structure of the whole of a plant monitoring control system and a plant operation assistance apparatus. It is a figure which shows the reference example 1 of this invention, and is a flowchart which shows an example of operation | movement of the plant operation assistance apparatus in FIG. It is a figure which shows the reference example 2 of this invention, and is a block diagram which shows an example of the schematic structure of the whole of a plant monitoring control system and a plant operation assistance apparatus. It is a figure which shows the reference example 3 of this invention, and is a figure which shows the example of a screen display of a plant operation assistance apparatus. It is a figure which shows the reference example 4 of this invention, and is a block diagram which shows an example of the schematic structure of the whole of a plant monitoring control system and a plant operation assistance apparatus. It is a figure which shows the reference example 4 of this invention, and is a figure which shows the example of a screen display of the plant operation assistance apparatus in FIG. It is a figure which shows Embodiment 1 of this invention, and is a figure which shows the example of a screen display of a plant operation assistance apparatus.

1 plant operation support device,
11 Plant data input I / F,
12 Importance determination unit 12,
13 Fuzzy rule database,
14 Alarm display,
15 Operation history database,
16 Device operation output I / F,
2 Plant dataway,
3 controller,
41, 42, 43 Equipment constituting the plant,
5 Alarm list display,
61, 62, 63 Alarm related operation display.

Claims (1)

A fuzzy rule database in which a rule for comprehensively evaluating the importance from a plurality of measured values is set, a plant data input I / F for inputting measured values of devices constituting the plant, and the plant data input I / F when an alarm occurs Of the input measurement values, an importance determination unit that comprehensively evaluates the importance of the alarm according to the rules of the fuzzy rule database from a plurality of measurement values related to the alarm, and a plurality of simultaneously generated alarms as the importance A plant operation support device comprising an alarm display unit for displaying together with the overall importance rating result by the degree determination unit,
An operation history database that stores the alarms that have occurred and the operation records of the devices that responded to the alarms is provided, and the device operations that correspond to the past relevant alarms stored in the operation history database are rated as a rating of the importance of each alarm. Used as an element,
A plurality of device operation information corresponding to past relevant alarms stored in the operation history database is displayed as additional information on the alarm display unit,
By selecting on the screen from the plurality of device operation information, an operation command is output to the selected plant component device,
A plant operation support apparatus, characterized in that a display for distinguishing between operated and unoperated information is added to each of the plurality of device operation information.

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