JP6698485B2 - Plant maintenance monitoring system - Google Patents

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

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

  Further, Patent Document 1 presents a plant monitoring control system including a monitoring terminal, a controller, and a maintenance terminal that are connected to each other via a communication line, and the controller is controlled by the monitoring terminal and maintained by the maintenance terminal. Has been done. In the plant monitoring control system that also has the function of the maintenance tool of the plant like this prior example, the monitoring terminal acquires the control logic diagram of the controller and can display it together with the monitoring information on the screen of the monitoring terminal. 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 control target device, device status, and device abnormality or failure information. However, the conventional maintenance terminal cannot acquire and display the information on the control operation and the control result in the monitoring terminal in real time. Moreover, the conventional maintenance terminal cannot display information such as a process value related to the calculation of the controller.

  As described above, the conventional control screen of the maintenance terminal has a problem that the commonality of information with the monitoring screen of the monitoring terminal is not guaranteed. For this reason, when information on the monitoring terminal is required during maintenance work, the operator has to move back and forth between the maintenance terminal and the monitoring terminal, resulting in poor work efficiency and easy occurrence of work mistakes such as erroneous operation. was there.

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

A plant maintenance monitoring system according to the present invention displays a process control device for controlling a control target device of a plant, and a first control device for displaying monitoring information of the control target device acquired from the process control device via a first communication line . A monitoring operation terminal having a monitoring screen, a maintenance terminal having a first control screen for displaying control information of the control target device acquired from the process control device via the second communication line, and wireless communication from the monitoring operation terminal. It acquires the monitoring information of the control target device via, a plant maintenance monitoring system comprising a mobile terminal to acquire control information of the control target device via the wireless communication from the process control device, the mobile terminal monitors A second monitoring screen that displays the monitoring information acquired from the operation terminal in the same display format as the first monitoring screen, and a second monitoring screen that displays the control information acquired from the process control device in the same display format as the first control screen. Control screen , a common information list that lists common information displayed on both the second monitoring screen and the second control screen, and when the information displayed on the second monitoring screen is updated. A monitor that determines whether 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 It has a screen 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. The worker does not need to go back and forth between the maintenance terminal and the monitoring operation terminal, and the working time can be shortened. Further, since the common information displayed on both the second monitoring screen and the second control screen is guaranteed to be the same, it is possible to reduce the operator's work mistakes and improve the work efficiency. .

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 which concerns on Embodiment 1 of this invention. It is a figure which shows an example of the common information list 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 when performing a maintenance work of a plant using the mobile terminal which concerns on Embodiment 1 of this invention.

Embodiment 1.
The plant maintenance monitoring system according to the first embodiment of the present invention will be described below with reference to the drawings. 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 each figure, the same or corresponding parts are designated by the same reference numerals.

  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 control device that monitors and controls the plant. And includes the process control device 1, the monitoring operation terminal 3, the maintenance terminal 5, the mobile terminal 7, the control network 2 as the first communication line, the maintenance network 6 as the second communication line, and the wireless network 8. Composed.

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

  The process control device 1 has a control information storage unit 11 that stores control information about 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 equipments that constitute the plant, such as a motor, a pump, a valve, a switch, and a hydraulic device. The control information stored in the control information storage unit 11 is updated by the control information updating unit 12.

  The control information includes a control logic diagram for controlling the plant auxiliary machine 4, data indicating a 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 equipment 4 by control information based on this control instruction.

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

  The monitoring information storage unit 31 stores the monitoring information acquired from the process control device 1 via the control network 2. The monitoring screen updating 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 monitor screen 34 is composed of a liquid crystal display or the like, and displays the monitor screen requested by the operator from among the monitor screens stored in the monitor screen storage unit 33.

  Further, 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 this input means. The operator monitors the plant on the first monitoring screen 34 of the monitoring operation terminal 3 and performs control operation on the first monitoring screen 34 using the input means as necessary. When a control instruction is input on the first monitor screen 34, the control information of the control operation is stored in the monitor screen storage unit 33.

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

  On the other hand, the maintenance terminal 5 as a plant maintenance and 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 means 51 acquires control information from the process control device 1 via the maintenance network 6. The control screen updating unit 52 updates the control screen storage unit 53 based on the control information collected by the control information collecting unit 51.

  On the first control screen 54, the control information acquired from the process control device 1 via the maintenance network 6, specifically, the control in which the process control device 1 visualizes the operation program for controlling the plant auxiliary equipment 4 is visualized. The logic diagram is displayed. The first control screen 54 is composed of a liquid crystal display or the like, and displays the control screen requested by the operator from among the control screens stored in the control screen storage unit 53.

  The maintenance terminal 5 further has input means such as a mouse, a keyboard, and a touch panel for controlling the process control device 1, and a transfer function of various settings necessary for starting the process control device 1 (all not shown). I have it. 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 collection unit 71 that acquires monitoring information from the monitoring operation terminal 3 via the wireless network 8 and the monitoring information collected by the monitoring information collection unit 71. The 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 updating means 72, the monitoring screen storage unit 73 of the mobile terminal 7 and the monitoring screen are monitored. The contents of the monitoring screen stored in the monitoring screen storage unit 33 of the operation terminal 3 are the same.

  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. .. Therefore, the operator can see the same monitoring screen as the monitoring operation terminal 3 on the mobile terminal 7.

  In addition, the mobile terminal 7 stores the control information collection unit 75 that acquires control information from the process control apparatus 1 via the wireless network 8 and the control screen storage unit 77 based on the control information collected by the control information collection unit 75. It has a control screen updating means 76 for updating.

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

  The second monitor 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 an input unit (not shown) such as a touch panel.

  Further, the mobile terminal 7 according to the first embodiment has a common information list 731 that lists common information displayed on both the second monitor screen 74 and the second control screen 78, and a monitor screen reflection unit 79. It has and. Although the common information list 731 is stored in the monitoring screen storage unit 73 in FIG. 2, the common information list 731 is not limited to this.

  The common information referred to here is information that can be linked between the control logic and the monitoring information, such as operation information for the plant auxiliary machine 4 (for example, information about opening/closing of valves, operation or stop of pumps, etc.), Information indicating the state of the plant auxiliary machine 4 (for example, valve open, pump stop, etc.), process value (for example, flow rate, pressure, temperature, etc.) as a result of control operation, and information such as abnormality or failure of the plant auxiliary machine 4 are displayed. Including.

  Items of the common information list 731 include a device number, a device name, a process control device number, a state ID, a monitoring screen ID, a control screen ID, and the like, and the above-mentioned common information can be obtained by using any of these items. It is 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, If the updated information is common information, it is reflected on the second control screen 78.

  As the reflecting method, at the timing when the monitoring screen updating unit 72 updates the monitoring screen storage unit 73, it is determined based on the common information list 731 whether the update information is common information. 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 common information is guaranteed on the second monitor screen 74 and the second control screen 78 of the mobile terminal 7.

  Note that the monitoring screen reflecting unit 79 attempts to make common information with the control screen storing unit 77 identical at the timing when the monitoring screen updating unit 72 updates the monitoring screen storing unit 73. If not only the monitoring information currently displayed on the second monitoring screen 74 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.

  The process performed by the monitoring screen reflection unit 79 of the mobile terminal 7 according to the first embodiment will be described with reference to FIG. The operator performs control operation of the plant auxiliary equipment 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 of being performed. 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 also updated, and the monitoring screen storage unit 33 and the monitoring screen storage unit 73 store the stored monitoring data. The contents of the screen are the same. Accordingly, when another operator displays the same monitoring screen of the plant accessory 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. To be done.

  Further, when the monitoring screen storage unit 73 is updated in the mobile terminal 7, the monitoring screen reflecting unit 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 updated. It is determined whether or not 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 accessory 4 for which the operation prohibition control operation has been performed, and the operation prohibition control information corresponds to the common information. Then it shall be judged.

  When it is determined that the update information of this time corresponds to the common information, the monitoring screen reflecting unit 79 stores the update information in the control screen storage unit 77 and updates the control screen storage unit 77. As a result, the message symbol "operation prohibited A2" is displayed at a location corresponding to any plant accessory 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. Therefore, the sameness of common information is not guaranteed between the first monitoring screen 34 of the monitoring operation terminal 3 and the first control screen 54 of the maintenance terminal 5.

  Further, the control information collecting means 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 machine 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 value related to the operation of the plant auxiliary machine 4 collected by the control information collecting means 75 is stored in the control screen storage section 77 by the control screen updating means 76, and the process value of the equipment is displayed on the second control screen 78. It

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

  In the maintenance terminal 5 as well, the control information collecting means 51 acquires the process value related to the calculation 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 in both data with the second control screen 78.

  The flow of processing when the plant maintenance work is performed using the mobile terminal 7 according to the first embodiment will be described with reference to the flowchart of FIG. First, in step S1, the operator uses the input means of the mobile terminal 7 to request the display of a control screen related to the facility subject to maintenance work. Here, for example, the device number is input.

  In step S2, the control information collecting means 75 acquires the 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 updating unit 76 updates the control screen storage unit 77 based on the control information acquired by the control information collecting unit 75, and in step S4, the device number is displayed on the second control screen 78. Display the associated control screen. At this time, the display method of the second control screen 78 is the same as the display method of the first control screen 54 of the maintenance terminal 5.

  When the device number is input in step S1, the monitoring information collecting means 71 acquires the monitoring information related to the device number from the monitoring operation terminal 3 via the wireless network 8 in step S5.

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

  Through the above steps S1 to S7, the control screen and the monitoring screen regarding the device number requested by the operator are displayed on the display unit of the mobile terminal 7. When there are a plurality of related monitor screens for one control screen, a dialog listing these monitor screens may be displayed so that the operator selects the necessary monitor screen.

  Subsequently, in step S8, the monitoring screen reflection unit 79 determines whether the monitoring screen storage unit 73 has been updated. For example, when another operator performs a control operation on the monitoring operation terminal 3, the monitoring screen storage unit 73 is updated.

  When the monitoring screen storage unit 73 is updated in step S8 (YES), the process proceeds to step S9, and it is determined based on the common information list 731 whether the update information is common information. When the update information is common information in step S9 (YES), the process proceeds to step S10, the monitoring screen reflecting unit 79 stores the update information in the control screen storage unit 77, and in step S11, the control screen storage unit 77. To update.

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

  As described above, according to the plant maintenance monitoring system of the first embodiment, the mobile terminal 7 displays the second monitoring 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, even if the operator needs the monitoring information at the time of maintenance and inspection, there is no need to go back and forth between the maintenance terminal 5 and the monitoring operation terminal 3, and the working time can be shortened. Planned.

  Also, since the common information displayed on both the second monitor screen 74 and the second control screen 78 of the mobile terminal 7 is guaranteed to be the same, the data may differ between the monitor information and the control information. It is possible to prevent a work error such as an erroneous operation due to the presence of the work, thereby improving work efficiency. Note that the present invention can appropriately modify or omit the embodiments within the scope of the invention.

  INDUSTRIAL APPLICABILITY 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 accessories, 5 maintenance terminals, 6 maintenance networks, 7 mobile terminals,
8 wireless network, 11 control information storage unit, 12 control information updating means,
31 monitoring information storage unit, 32 monitoring screen updating 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 updating means, 73 monitoring screen storage unit, 74 second monitoring screen,
75 control information collecting means, 76 control screen updating means, 77 control screen storing section,
78 second control screen, 79 monitoring screen reflection means, 731 common information list

Claims (5)

A process control device for controlling the equipment to be controlled in the plant,
A monitoring operation terminal having a first monitoring screen for displaying monitoring information of the controlled device acquired from the process control device via a first communication line ;
A maintenance terminal having a first control screen for displaying control information of the controlled device acquired from the process control device via a second communication line ;
A plant equipped with a mobile terminal that acquires monitoring information of the control target device from the monitoring operation terminal via wireless communication, and also acquires control information of the control target device from the process control device via the wireless communication. A maintenance monitoring system ,
The mobile terminal is
A second monitoring screen that displays the monitoring information acquired from the monitoring operation terminal in the same display format as the first monitoring screen ;
A second control screen displaying the control information acquired from the process control device in the same display format as the first control screen ;
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 monitor 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 when there is. The mobile terminal is
Monitoring information collecting means for acquiring monitoring information of the controlled device from the monitoring operation terminal via the wireless communication ;
A monitoring screen storage unit for storing the monitoring screen displayed on the second monitoring screen;
Monitoring screen updating means for updating the monitoring screen storage section based on the monitoring information collected by the monitoring information collecting means,
Control information collecting means for acquiring control information of the controlled device from the process control device via the wireless communication ;
A control screen storage unit for storing a control screen displayed on the second control screen;
A control screen updating unit for updating the control screen storage unit based on the control information collected by the control information collecting unit,
The monitoring screen reflecting unit determines whether the updated information is common information at the timing when the monitoring screen updating unit updates the monitoring screen storage unit, and the updated information is common information. 2. The plant maintenance monitoring system according to claim 1, wherein the updated information is stored in the control screen storage unit and reflected on the second control screen in the case of occurrence.   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 acquires the process value related to the operation of the process control device by the control information collecting means, stores the process value in the control screen storing unit by the control screen updating means, and stores the process value in the first value. The plant maintenance monitoring system according to claim 2 or 3, which is displayed on the control screen of item 2.   The mobile terminal has an input unit for inputting a device number of the control target device, and a control screen related to the control target device is changed to the second control screen based on the device number input to the input unit. The plant maintenance monitoring system according to any one of claims 1 to 4, wherein a monitoring screen related to the controlled device is displayed on the second monitoring screen while being displayed.

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