JP2018055146A - Plant Maintenance Monitoring System - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a plant maintenance monitoring system capable of displaying common information between a control screen and a monitoring screen of a plant by guaranteeing identity.SOLUTION: A control screen and a monitoring screen about an apparatus number requested by an operator are displayed on a display part of a mobile terminal 7. Monitoring screen reflection means 79 determines whether update information is common information or not on the basis of a common information list 731 when a monitoring screen storage part 73 is updated. When the update information is the common information, the monitoring screen reflection means 79 stores the update information in a control screen storage part 77, and updates the control screen storage part 77. Thus, the update information is reflected on a second control screen 78, and the identity of the common information is guaranteed on a second monitoring screen 74 and a second control screen 78 of the mobile terminal 7.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a plant maintenance monitoring system that performs monitoring control and maintenance inspection of a plant such as nuclear power generation or thermal power generation.

  Conventionally, plant maintenance management is performed on a control screen of a maintenance terminal that is connected to a control controller that controls a device to be controlled in the plant via a maintenance network. A control logic diagram that visualizes an operation program for the control controller to control the control target device is mainly displayed on the control screen.

  On the other hand, plant monitoring and control operations are performed in a monitoring terminal connected to the control controller via a control network. The monitoring information of the control target device acquired from the control controller is displayed on the monitoring screen of the monitoring terminal. The operator monitors the plant on the monitoring screen of the monitoring terminal, inputs a control instruction on the monitoring screen as necessary, and controls the control target device via the control controller.

  Further, Patent Document 1 presents a plant monitoring control system including a monitoring terminal, a control controller, and a maintenance terminal connected to each other via a communication line. The control controller is controlled by the monitoring terminal and is maintained by the maintenance terminal. Has been. In the plant monitoring and control system having the function of the plant maintenance tool as in the preceding example, the monitoring terminal can acquire the control logic diagram of the control controller and display it on the monitoring terminal screen together with the monitoring information. It was possible.

JP 2014-99070 A

  The control screen of the maintenance terminal may display information common to the monitoring screen of the monitoring terminal, such as control information of the device to be controlled, device status, and information on device abnormality or failure. However, the conventional maintenance terminal cannot acquire and display information on control operations and control results in the monitoring terminal in real time. In addition, the conventional maintenance terminal cannot display information such as process values related to the calculation of the control controller.

  Thus, the control screen of the conventional maintenance terminal has a problem that the same information as the monitoring screen of the monitoring terminal is not guaranteed to be identical. For this reason, when monitoring terminal information is required during maintenance work, the operator must go back and forth between the maintenance terminal and the monitoring terminal, resulting in poor work efficiency and easy occurrence of work errors such as erroneous operations. was there.

  The present invention has been made to solve the above-described problems, and is capable of displaying common information between a plant control screen and a monitoring screen while guaranteeing the sameness. The purpose is to provide a monitoring system and improve work efficiency.

  A plant maintenance monitoring system according to the present invention includes a process control device that controls a control target device of a plant, and a monitoring operation terminal having a first monitoring screen that displays monitoring information of the control target device acquired from the process control device. A maintenance terminal having a first control screen for displaying control information of the control target device acquired from the process control device, and the same display format as the first monitoring screen for the monitoring information acquired from the monitoring operation terminal via wireless communication And a mobile terminal having a second control screen for displaying the control information acquired from the process control device via wireless communication in the same display format as the first control screen. . When the mobile terminal updates the common information list that lists the common information displayed on both the second monitoring screen and the second control screen, and the information displayed on the second monitoring screen, A monitoring screen that determines whether or not the updated information is common information based on the common information list, and reflects the updated information on the second control screen when the updated information is common information Has reflection means.

  According to the plant maintenance monitoring system of the present invention, the mobile terminal includes the second monitoring screen having the same display format as the monitoring operation terminal and the second control screen having the same display format as the maintenance terminal. Personnel do not need to go back and forth between the maintenance terminal and the monitoring operation terminal, and the work time can be shortened. In addition, since the identity of the common information displayed on both the second monitoring screen and the second control screen is guaranteed, the operator's work mistakes can be reduced and work efficiency can be improved. .

It is the schematic which shows the plant maintenance monitoring system which concerns on Embodiment 1 of this invention. It is a functional block diagram of the plant maintenance monitoring system concerning Embodiment 1 of the present invention. It is a figure which shows an example of the common information list | wrist which the mobile terminal which concerns on Embodiment 1 of this invention has. It is a figure explaining the process by the monitoring screen reflection means of the mobile terminal which concerns on Embodiment 1 of this invention. It is a figure which shows the flow of a process at the time of performing the maintenance work of a plant using the mobile terminal which concerns on Embodiment 1 of this invention.

Embodiment 1 FIG.
Below, the plant maintenance monitoring system concerning Embodiment 1 of the present invention is explained based on a drawing. FIG. 1 is a schematic diagram showing a plant maintenance monitoring system according to the first embodiment, and FIG. 2 is a functional block diagram of the plant maintenance monitoring system according to the first embodiment. In the drawings, the same reference numerals are given to the same and corresponding parts in the drawings.

  The plant maintenance monitoring system according to the first embodiment has a function of a maintenance tool that performs maintenance and inspection of a plant such as a nuclear power plant or a thermal power plant, and a function of a plant monitoring and control device that performs monitoring and control of the plant. A process control device 1, a monitoring operation terminal 3, a maintenance terminal 5, a mobile terminal 7, a control network 2 as a first communication line, a maintenance network 6 as a second communication line, and a wireless network 8. Composed.

  In FIG. 1 and FIG. 2, one process control device 1, one monitoring operation terminal 3, one maintenance terminal 5, and one mobile terminal 7 are shown, but there may be a plurality of them. In particular, the mobile terminal 7 is a small, lightweight and portable tablet terminal, and a plurality of mobile terminals 7 are prepared for use by an operator (user) during maintenance work.

  The process control device 1 includes a control information storage unit 11 that stores control information related to a plant auxiliary machine 4 that is a device to be controlled by the plant, and controls the plant auxiliary machine 4. The plant auxiliary machine 4 is various devices constituting the plant, such as a motor, a pump, a valve, a switch, a hydraulic device, and the like. The control information stored in the control information storage unit 11 is updated by the control information update unit 12.

  The control information includes a control logic diagram for controlling the plant auxiliary machine 4, data indicating the process value or state of the plant auxiliary machine 4, and the like. The process control device 1 receives a control instruction from the monitoring operation terminal 3 via the control network 2, and controls the plant auxiliary machine 4 with control information based on the control instruction.

  A monitoring operation terminal 3 as a plant monitoring control device is connected to the process control device 1 via the control network 2 so as to be communicable, and inputs and outputs control information. As shown in FIG. 2, the monitoring operation terminal 3 includes a monitoring information storage unit 31, a monitoring screen update unit 32, a monitoring screen storage unit 33, and a first monitoring screen 34.

  The monitoring information storage unit 31 stores monitoring information acquired from the process control apparatus 1 via the control network 2. The monitoring screen update unit 32 updates the monitoring screen storage unit 33 based on the monitoring information collected in the monitoring information storage unit 31.

  On the first monitoring screen 34, the monitoring information of the plant auxiliary equipment 4 acquired from the process control device 1 via the control network 2 is displayed. The first monitoring screen 34 is composed of a liquid crystal display or the like, and displays the monitoring screen requested by the operator from the monitoring screens stored in the monitoring screen storage unit 33.

  The monitoring operation terminal 3 includes input means (not shown) such as a mouse, a keyboard, and a touch panel, and a control instruction is input by the input means. The operator monitors the plant on the first monitoring screen 34 of the monitoring operation terminal 3, and performs a control operation on the first monitoring screen 34 using the input means as necessary. When a control instruction is input on the first monitoring screen 34, the control information of the control operation is stored in the monitoring screen storage unit 33.

  In the control network 2, input / output signals for the plant auxiliary machine 4 are mainly transmitted between the process control device 1 and the monitoring operation terminal 3. An input signal to the plant auxiliary machine 4 is a control signal to the plant auxiliary machine 4 and is input from the monitoring operation terminal 3 to the plant auxiliary machine 4 via the process control device 1. Further, the output signal from the plant auxiliary machine 4 is a signal indicating a process value and a state as a result of the control operation based on the control signal.

  On the other hand, the maintenance terminal 5 as a plant maintenance inspection tool is connected to the process control device 1 and the monitoring operation terminal 3 via the maintenance network 6 and controls the process control device 1 via the maintenance network 6. As shown in FIG. 2, the maintenance terminal 5 includes a control information collection unit 51, a control screen update unit 52, a control screen storage unit 53, and a first control screen 54.

  The control information collecting unit 51 acquires control information from the process control device 1 via the maintenance network 6. The control screen update unit 52 updates the control screen storage unit 53 based on the control information collected by the control information collection unit 51.

  The first control screen 54 visualizes control information acquired from the process control device 1 via the maintenance network 6, specifically, an operation program for the process control device 1 to control the plant auxiliary machine 4. A logic diagram is displayed. The first control screen 54 is configured by a liquid crystal display or the like, and displays the control screen requested by the operator from the control screens stored in the control screen storage unit 53.

  The maintenance terminal 5 further includes input means such as a mouse, a keyboard, and a touch panel for controlling the process control device 1, a transfer function for various settings necessary for starting the process control device 1, etc. (all not shown). I have. In the maintenance network 6, control information is mainly transmitted between the maintenance terminal 5 and the process control device 1.

  The mobile terminal 7 can communicate with the process control device 1 and the monitoring operation terminal 3 via a wireless network 8 which is a wireless communication means. The mobile terminal 7 updates the monitoring screen storage unit 73 based on the monitoring information collected by the monitoring information collecting unit 71 and the monitoring information collecting unit 71 that acquires the monitoring information from the monitoring operation terminal 3 via the wireless network 8. Monitoring screen updating means 72 is provided.

  Since the mobile terminal 7 acquires the information stored in the monitoring information storage unit 31 of the monitoring operation terminal 3 and updates the monitoring screen by the monitoring screen update means 72, the mobile terminal 7 and the monitoring screen storage unit 73 of the mobile terminal 7 monitor. The contents of the stored monitoring screen are the same as those of the monitoring screen storage unit 33 of the operation terminal 3.

  Further, the mobile terminal 7 has a second monitoring screen 74 that displays the monitoring screen requested by the operator from the monitoring screens stored in the monitoring screen storage unit 73. On the second monitoring screen 74, the monitoring information of the plant auxiliary equipment 4 acquired from the monitoring operation terminal 3 via the wireless network 8 is displayed in the same display format as the first monitoring screen 34 of the monitoring operation terminal 3. . For this reason, the operator can see the same monitoring screen as that of the monitoring operation terminal 3 on the mobile terminal 7.

  In addition, the mobile terminal 7 includes a control information collection unit 75 that acquires control information from the process control device 1 via the wireless network 8, and a control screen storage unit 77 based on the control information collected by the control information collection unit 75. Control screen update means 76 for updating is provided.

  Furthermore, the mobile terminal 7 has a second control screen 78 that displays a control screen requested by the operator from among the control screens stored in the control screen storage unit 77. The second control screen 78 visualizes control information acquired from the process control device 1 via the wireless network 8, specifically, an operation program for the process control device 1 to control the plant auxiliary equipment 4. The logic diagram is displayed in the same display format as the first control screen 54 of the maintenance terminal 5. For this reason, the operator can see the same control screen as the maintenance terminal 5 on the mobile terminal 7.

  The second monitoring screen 74 and the second control screen 78 of the mobile terminal 7 are configured by a display unit such as a liquid crystal display, and further include input means (not shown) such as a touch panel.

  Furthermore, the mobile terminal 7 according to the first embodiment includes a common information list 731 that lists common information displayed on both the second monitoring screen 74 and the second control screen 78, and a monitoring screen reflecting unit 79. And. In FIG. 2, the common information list 731 is stored in the monitoring screen storage unit 73, but is not limited thereto.

  Common information here is information that can be linked between the control logic and the monitoring information, such as operation information for the plant auxiliary equipment 4 (for example, information such as valve opening / closing, pump operation or stop), Information indicating the state of the plant auxiliary machine 4 (for example, valve open, pump stop, etc.), process values (for example, flow rate, pressure, temperature, etc.) as a result of the control operation, and information on abnormality or failure of the plant auxiliary machine 4 Including.

  Items of the common information list 731 include a device number, a device name, a process control device number, a status ID, a monitoring screen ID, a control screen ID, and the like, and the above-described common information is obtained using any of these items. Listed. An example of the common information list 731 is shown in FIG.

  When the monitoring information displayed on the second monitoring screen 74 is updated, the monitoring screen reflecting unit 79 determines whether the updated information is common information based on the common information list 731. When the updated information is common information, it is reflected on the second control screen 78.

  As a reflection method, it is determined based on the common information list 731 whether or not the update information is common information at the timing when the monitor screen storage unit 73 is updated by the monitor screen update unit 72. If the update information is common information, the update information is reflected in the second control screen 78 by storing the update information in the control screen storage unit 77. As a result, the sameness of the common information is guaranteed on the second monitoring screen 74 and the second control screen 78 of the mobile terminal 7.

  Note that the monitoring screen reflecting means 79 is designed to share the common information with the control screen storage section 77 at the timing when the monitoring screen storage section 73 is updated by the monitoring screen update section 72. 2 when not only the monitoring information currently displayed on the monitoring screen 74 of 2 but also the monitoring information not currently displayed is updated, if the information is common information, it is reflected in the control screen storage unit 77. The identity of common information is guaranteed.

  Processing performed by the monitoring screen reflecting means 79 of the mobile terminal 7 according to the first embodiment will be described with reference to FIG. The operator performs a control operation of the plant auxiliary machine 4 at the monitoring operation terminal 3. In the example shown in FIG. 4, a control instruction “operation prohibited” is input to an arbitrary plant auxiliary machine 4 from the input means of the monitoring operation terminal 3, and a message symbol “operation prohibited A1” is added on the first monitoring screen 34. It shows the state that was done. The control information of this control operation is stored in the monitoring screen storage unit 33 of the monitoring operation terminal 3, and the monitoring screen storage unit 33 is updated.

  When the monitoring screen storage unit 33 of the monitoring operation terminal 3 is updated, the monitoring screen storage unit 73 of the mobile terminal 7 is updated in the same manner, and the monitoring screen storage unit 33 and the monitoring screen storage unit 73 store the stored monitoring. The contents of the screen are the same. Thereby, when another operator displays the same monitoring screen of the plant auxiliary machine 4 as the first monitoring screen 34 of the monitoring operation terminal 3 on the second monitoring screen 74 of the mobile terminal 7, the operation prohibition A1 is displayed. Is done.

  When the monitoring screen storage unit 73 is updated in the mobile terminal 7, the monitoring screen reflection means 79 searches the common information list 731 for the device number or device name of the update information updated this time, and the update information is It is determined whether it corresponds to common information.

  In the example illustrated in FIG. 4, the common information list 731 includes the device number or the device name of any plant auxiliary machine 4 for which the operation prohibition control operation has been performed, and the operation prohibition control information corresponds to the common information. It shall be judged.

  When it is determined that the current update information corresponds to the common information, the monitoring screen reflection unit 79 stores the update information in the control screen storage unit 77 and updates the control screen storage unit 77. As a result, a message symbol of operation prohibition A2 is displayed at a location corresponding to any plant auxiliary machine 4 on the second control screen 78, and the common information is in the same state as the second monitoring screen 74. .

  On the other hand, the maintenance terminal 5 cannot acquire the control information of the control operation on the first monitoring screen 34 of the monitoring operation terminal 3 in real time. For this reason, the identity of the common information is not guaranteed on the first monitoring screen 34 of the monitoring operation terminal 3 and the first control screen 54 of the maintenance terminal 5.

  In addition, the control information collecting unit 75 of the mobile terminal 7 according to the first embodiment is involved in the calculation that is the control information of the plant auxiliary equipment 4 related to the control screen at the timing when the second control screen 78 is displayed. The process value is acquired from the process control device 1 via the wireless network 8. The process values related to the operation of the plant auxiliary machine 4 collected by the control information collecting unit 75 are stored in the control screen storage unit 77 by the control screen update unit 76, and the process values of the devices are displayed on the second control screen 78. The

  In the example illustrated in FIG. 4, a symbol “AI12.22” indicating a process value is displayed on the second control screen 78. AI represents an analog input, and 12.22 represents the temperature of the plant auxiliary machine 4, for example.

  Also in the maintenance terminal 5, the control information collection unit 51 acquires the process value related to the operation of the plant auxiliary machine 4 from the process control device 1, so that the first control screen 54 of the maintenance terminal 5 and the mobile terminal 7 There is no difference between the two data with the second control screen 78.

  The flow of processing when performing maintenance work on a plant using the mobile terminal 7 according to the first embodiment will be described with reference to the flowchart of FIG. First, in step S <b> 1, the operator requests display of a control screen related to equipment to be subjected to maintenance work by using the input unit of the mobile terminal 7. Here, for example, a device number is input.

  In step S <b> 2, the control information collection unit 75 acquires control information related to the device number from the process control device 1 via the wireless network 8. Subsequently, in step S3, the control screen update unit 76 updates the control screen storage unit 77 based on the control information acquired by the control information collection unit 75. In step S4, the control screen update unit 76 sets the device number on the second control screen 78. Display related control screens. At this time, the display method of the second control screen 78 is the same display method as that of the first control screen 54 of the maintenance terminal 5.

  When the device number is input in step S 1, the monitoring information collection unit 71 acquires monitoring information related to the device number from the monitoring operation terminal 3 via the wireless network 8 in step S 5.

  Subsequently, in step S6, the monitoring screen update unit 72 updates the monitoring screen storage unit 73 based on the monitoring information acquired by the monitoring information collection unit 71. In step S7, the monitoring screen update unit 72 sets the device number on the second monitoring screen 74. Display related monitoring screens. At this time, the display method of the second monitoring screen 74 is the same display method as that of the first monitoring screen 34 of the monitoring operation terminal 3.

  Through the processing from step S1 to step S7, the control screen and the monitoring screen related to the device number requested by the operator are displayed on the display unit of the mobile terminal 7. In addition, when there are a plurality of related monitoring screens for one control screen, a dialog in which the monitoring screens are displayed as a list may be displayed so that the operator can select a necessary monitoring screen.

  Subsequently, in step S <b> 8, the monitoring screen reflection unit 79 determines whether there is an update of the monitoring screen storage unit 73. For example, when another operator performs a control operation on the monitoring operation terminal 3, the monitoring screen storage unit 73 is updated.

  If the monitoring screen storage unit 73 has been updated in step S8 (YES), the process proceeds to step S9, and it is determined based on the common information list 731 whether or not the updated information is common information. If the update information is common information in step S9 (YES), the process proceeds to step S10, where the monitoring screen reflecting means 79 stores the update information in the control screen storage unit 77, and in step S11, the control screen storage unit 77. Update.

  Thereby, the update information is reflected on the second control screen 78 in step S12. If the monitoring screen storage unit 73 is not updated in step S8 (NO), and if the update information is not common information in step S9 (NO), the process proceeds to step S13. In step S13, when the maintenance work is finished (YES), the process is finished. In step S13, when the maintenance work is not completed (NO), the process returns to step S8, and the processes from step S8 to step S12 are repeated until the maintenance work is completed.

  As described above, according to the plant maintenance monitoring system according to the first embodiment, the mobile terminal 7 has the second display screen 74 having the same display format as the monitoring operation terminal 3 and the same display format as the maintenance terminal 5. Since the second control screen 78 is provided, it is not necessary for the operator to go back and forth between the maintenance terminal 5 and the monitoring operation terminal 3 even when monitoring information is required at the time of maintenance inspection. Figured.

  In addition, since the identity of the common information displayed on both the second monitoring screen 74 and the second control screen 78 of the mobile terminal 7 is guaranteed, the data differs between the monitoring information and the control information. Therefore, it is possible to prevent a work error such as an erroneous operation due to being present, and to improve work efficiency. In the present invention, the embodiments can be appropriately modified and omitted within the scope of the invention.

  The present invention can be used as a plant maintenance monitoring system that performs plant monitoring control and maintenance inspection.

1 process control device, 2 control network, 3 monitoring operation terminal,
4 Plant auxiliary machine, 5 Maintenance terminal, 6 Maintenance network, 7 Mobile terminal,
8 wireless network, 11 control information storage unit, 12 control information updating means,
31 monitoring information storage unit, 32 monitoring screen update means, 33 monitoring screen storage unit,
34 first monitoring screen, 51 control information collecting means, 52 control screen updating means,
53 control screen storage unit, 54 first control screen, 71 monitoring information collecting means,
72 monitoring screen update means, 73 monitoring screen storage unit, 74 second monitoring screen,
75 control information collection means, 76 control screen update means, 77 control screen storage,
78 second control screen, 79 monitoring screen reflecting means, 731 common information list

Claims (5)

A process control device for controlling the control target equipment of the plant;
A monitoring operation terminal having a first monitoring screen for displaying monitoring information of the control target device acquired from the process control device;
A maintenance terminal having a first control screen for displaying control information of the control target device acquired from the process control device;
A second monitoring screen for displaying the monitoring information acquired from the monitoring operation terminal via wireless communication in the same display format as the first monitoring screen; and the control information acquired from the process control device via the wireless communication Mobile terminal having a second control screen that displays the same display format as the first control screen, the mobile terminal,
A common information list that lists common information displayed on both the second monitoring screen and the second control screen;
When the information displayed on the second monitoring screen is updated, it is determined whether the updated information is common information based on the common information list, and the updated information is common information. A plant maintenance monitoring system comprising: a monitoring screen reflecting means for reflecting the updated information on the second control screen if there is. The mobile terminal
Monitoring information collecting means for acquiring monitoring information of the control target device from the process control device via a first communication line;
A monitoring screen storage unit for storing a monitoring screen displayed on the second monitoring screen;
Monitoring screen updating means for updating the monitoring screen storage unit based on the monitoring information collected by the monitoring information collecting means;
Control information collecting means for acquiring control information of the control target device from the process control device via a second communication line;
A control screen storage unit for storing a control screen displayed on the second control screen;
Control screen update means for updating the control screen storage unit based on the control information collected by the control information collection means,
The monitoring screen reflection unit determines whether the updated information is common information at a timing when the monitoring screen storage unit is updated by the monitoring screen update unit, and the updated information is common information. The plant maintenance monitoring system according to claim 1, wherein the updated information is stored in the control screen storage unit and reflected in the second control screen.   The plant maintenance monitoring system according to claim 2, wherein the common information list is stored in the monitoring screen storage unit.   The mobile terminal obtains a process value related to the operation of the process control device by the control information collection unit, stores the process value in the control screen storage unit by the control screen update unit, and stores the process value in the control screen storage unit. 4. The plant maintenance monitoring system according to claim 2, wherein the system is displayed on the control screen of 2.   The mobile terminal has an input unit for inputting a device number of the device to be controlled, and a control screen related to the device to be controlled based on the device number input to the input unit is used as the second control screen. The plant maintenance monitoring system according to any one of claims 1 to 4, wherein the plant maintenance monitoring system displays a monitoring screen related to the control target device on the second monitoring screen.

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