JP2013191171A - Plant monitoring device, control method, and control program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a plant monitoring device which suitably controls operation state of the plant monitoring device.SOLUTION: A plant monitoring device includes: plant data input means 15 for taking in an input value of each sensor installed in a plant facility 3; a plant data table 16 for storing the input values as plant data; inter-device communication means 25 for communicating with other devices 10 and 11 via a network; operation state collection means 24 for collecting an operation states indicating whether each device 10 or 11 is activated or stopped via the inter-device communication means 25; an operation state table 30 for storing the operation states as operation state data; a display device 18 for displaying the operation state data; and activation/stop execution means 22 for transmitting an activation or stop command for activating or stopping each of the devices 10 and 11 via the inter-device communication means 25.

Description

  The present invention relates to a plant monitoring apparatus that configures a network with a plurality of apparatuses, a control method thereof, and a control program.

  Various plants such as a power plant and a chemical plant are provided with a plant monitoring device for monitoring and controlling the plant.

  In recent years, a plant monitoring apparatus employs a system in which system decentralization is performed as in the client / server type, and the degeneration range of the monitoring function in a single failure of the apparatuses constituting the monitoring apparatus is minimized.

JP 2006-4456 A

  A conventional plant monitoring apparatus is configured so that plant monitoring and control can be performed for 24 hours in preparation for an emergency regardless of whether the plant is operating or stopped. In other words, in this plant monitoring device, all the devices constituting the decentralized system are always in operation.

  For this reason, the plant monitoring apparatus has a certain cost for operation and maintenance. In addition, even when a management system with a small number of operators is taken, such as at night or when the plant is shut down, there is a problem that a number of devices that can be said to be inefficient continue to operate.

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide a plant monitoring apparatus that suitably controls the operating state of the plant monitoring apparatus, a control method thereof, and a control program.

  In order to solve the above-described problems, a plant monitoring apparatus according to the present invention includes a plurality of devices that take in input values from sensors installed in a plant facility and monitor the plant facility, and the plurality of devices are In the plant monitoring apparatus that forms a network, at least one of the plurality of devices includes a plant data input unit that captures an input value from each sensor installed in the plant facility, and the input value is used as the plant data. Plant data storage means for storing, inter-device communication means for communicating with the other devices via the network, and an operating state indicating whether the plurality of devices are activated or stopped via the inter-device communication means Operating state collecting means for collecting, operating state storage means for storing the operating state as operating state data, and the operating state data Characterized by comprising display means for displaying the starting and stopping execution means to start and stop command to start or stop the other of the device via the communication means between said device.

  In the plant monitoring apparatus, its control method, and control program according to the present invention, the operating state of the plant monitoring apparatus can be suitably controlled.

The block diagram explaining one Embodiment of the plant monitoring apparatus which concerns on this invention. Explanatory drawing which shows an example of a plant data table. Explanatory drawing which shows an example of the display screen data table for displaying a monitoring screen. Explanatory drawing which shows an example of the display screen data table for displaying an operation state screen. Explanatory drawing which shows an example of an operating condition table. Explanatory drawing which shows an example of an operation state table. It is explanatory drawing which shows an example of a regular exchange information table. The flowchart explaining the monitoring screen display process performed by a plant monitoring apparatus (client). The flowchart explaining the operation state screen display process performed by a plant monitoring apparatus (client). The flowchart explaining the operation state manual control process performed by a plant monitoring apparatus (client). The flowchart explaining the operating state automatic control process performed by a plant monitoring apparatus (client). The flowchart explaining the working time smoothing process performed by a plant monitoring apparatus (client). The flowchart explaining the parts replacement notification process performed by a plant monitoring apparatus (client). The figure which shows the 1st modification of the plant monitoring apparatus in this embodiment. The figure which shows the 2nd modification of the plant monitoring apparatus in this embodiment. The figure which shows the 3rd modification of the plant monitoring apparatus in this embodiment. The figure which shows the 4th modification of the plant monitoring apparatus in this embodiment.

  DESCRIPTION OF EMBODIMENTS Embodiments of a plant monitoring apparatus, a control method thereof, and a control program according to the present invention will be described based on the accompanying drawings.

  In the present embodiment, a plant monitoring apparatus, a control method thereof, and a control program according to the present invention will be described by applying to a power plant.

  FIG. 1 is a configuration diagram illustrating an embodiment of a plant monitoring apparatus according to the present invention. Note that FIG. 1 shows the detailed configuration of only one client 10 in the distributed system. The other clients 10 and server 11 have the same configuration, but the description thereof is omitted here.

  The plant monitoring device 1 takes in input values from each sensor installed in the plant facility 3 and monitors the plant facility 3.

  The plant monitoring apparatus 1 includes a plurality of clients 10 and 10 and a plurality of servers 11 and 11. Each client 10 and server 11 form a network in a wired or wireless manner. Each client 10 and server 11 are connected to control devices 2a to 2d as examples. The control devices 2 a to 2 d are provided for each system of the plant equipment 3 such as a turbine and a boiler, and control each system of the plant equipment 3.

  The client 10 of the plant monitoring apparatus 1 is a computer that functions as a client.

  The client 10 includes a plant data input unit 15 and a plant data table 16. The plant data input means 15 periodically takes in input values from the sensors of the plant equipment 3 from the control devices 2a to 2d. The plant data table 16 (plant data storage means) stores data acquired by the plant data input means 15.

  Here, FIG. 2 is an explanatory diagram showing an example of the plant data table 16. The plant data table 16 stores the values acquired for each monitoring point of the plant equipment 3 in time series. Specifically, the plant data table 16 stores the values acquired at the points A to D,... In the time series from the latest value to the time 5,. Further, the plant data table 16 stores points “a” to “c”, “ON” and “OFF” in time series.

  The client 10 includes an input device 17 and a display device 18. The input device 17 (input means) is a mouse or a keyboard. The input device 17 receives an operator request (instruction) such as an instruction to start or stop the client 10 and the server 11 by being operated by the operator. The display device 18 (display means) is a display such as a CRT or a liquid crystal display or a printer. The display device 18 displays a screen generated based on an operator request.

  Of the instructions received by the input device 17, the dialogue screen request unit 19 supplies a display request for the monitoring screen and the operation state screen to the screen display unit 20. In addition, the dialog screen requesting unit 19 supplies the start / stop execution unit 22 with a command operation that the operator requests to start, restart, or stop the client 10. Further, the dialogue screen requesting means 19 supplies a start / stop command for starting / stopping another client 10 or the server 11 to the start / stop execution means 22 by the operator's manual operation. The dialog screen requesting means 19 supplies an instruction (manual priority designation) for setting the client 10 and the server 11 to prioritize manual control relating to start / stop to the manual priority designation means 28.

  The screen display means 20 refers to the display screen data table 21 and the plant data table 16 based on the monitoring screen display request supplied from the dialog screen request means 19 and generates monitoring screen data. The screen display means 20 displays the generated monitoring screen data on the display device 18.

  Here, FIG. 3 is an explanatory diagram showing an example of the display screen data table 21 for displaying the monitoring screen. FIG. 4 is an explanatory diagram showing an example of the display screen data table 21 for displaying the operation state screen.

  The display screen data table 21 stores screen data for configuring screens necessary for plant monitoring and control. For example, as shown in FIG. 3, the display screen data table 21 includes screen data of trend graphs such as pressure and flow rate of the plant equipment 3, screen data indicating information related to alarms generated in the plant equipment 3, Screen data indicating a system diagram and the like are stored as screen data 21a related to the monitoring screen. Further, as shown in FIG. 4, the display screen data table 21 includes screen data 21 b relating to an operation state screen that displays whether the client 10 and the server 11 in the plant monitoring apparatus 1 are activated, stopped, and whether manual priority is set. Is stored.

  The start / stop execution unit 22 starts or stops the client 10 based on the command operation supplied from the dialog screen request unit 19. The command operation is an OS (Operating System) level operation instruction that requests the client 10 to start, restart, or stop.

  The client 10 has a hard switch (SW) 23. The hardware SW 23 is a physical input device such as a push button provided outside the client 10 and provided in a computer, for example. The hardware SW 23 receives an interrupt signal for starting or stopping the client 10. The start / stop execution means 22 similarly starts or stops the client 10 when the hardware SW 23 receives an interrupt signal.

  An instruction to start, restart, or stop the client 10 and the server 11 is input by an operator when a stop or restart is required, for example, during system maintenance, or when a start after inspection work is required.

  The start / stop execution means 22 supplies a command for starting or stopping the other client 10 and the server 11 (other apparatus) in the plant monitoring apparatus 1 to the inter-device communication means 25, and the inter-device communication means 25 is To other devices.

  As a means for controlling the operating states of the client 10 and the server 11, the client 10 includes an operating state collecting unit 24, an inter-device communication unit 25, an operating time measuring unit 26, an operating state determining unit 27, a manual priority specifying unit 28, An operation condition table 29 and an operation state table 30 are included.

  The operation state collection unit 24 periodically collects operation states of the client 10 and the server 11 that form a network in the plant monitoring apparatus 1. The operating state is information indicating whether it is starting or stopping. The operating state collecting unit 24 supplies an instruction for acquiring the operating states of the client 10 and the server 11 to the inter-device communication unit 25. The operating state collecting unit 24 supplies the acquired operating time of the client 10 and the server 11 to the operating time measuring unit 26 and stores it in the operating state table 30.

  The inter-device communication unit 25 communicates with other clients 10 and the server 11 (other devices) via a network. The inter-device communication unit 25 transmits inquiry information for determining the start / stop state to the client 10 and the server 11 based on an instruction from the operation state collection unit 24. The inter-device communication unit 25 supplies the response result of the inquiry information to the operating state collection unit 24. Further, the inter-device communication unit 25 transmits a command for controlling start / stop (operating state) to the client 10 and the server 11 based on the instruction from the start / stop execution unit 22 described above. The operating state of the client 10 and the server 11 is controlled according to this command.

  The operating time measuring unit 26 measures the cumulative operating (starting) time of each client 10 and server 11 collected by the operating state collecting unit 24. The operating time measuring unit 26 stores the accumulated operating time in the operating state table 30 as the actual operating time.

  The operating condition table 29 (operating condition storage means) stores operating condition data that is a condition for operating each client 10 and the server 11. Here, FIG. 5 is an explanatory diagram showing an example of the operating condition table 29. The operation condition table 29 stores conditions for operating each client 10 and the server 11 such as an operation day, an operation time, a plant state to be operated, and a minimum operation number. The plant state can be determined from the plant data table 16. The operating condition table 29 stores operating conditions for each client 10 and server 11.

  The operating state determination unit 27 performs determination for automatically controlling stop / start of the client 10 and the server 11. Specifically, the operation state determination unit 27 reads various data stored in the plant data table 16, the operation condition table 29, and the operation state table 30. The operating state determination unit 27 determines whether or not the client 10 and the server 11 need to be stopped / started based on the read information.

  The manual priority designation means 28 stores the manual priority designation of the client 10 or the server 11 in the operating state table 30 based on the manual priority designation supplied from the dialogue screen request means 19. The manual priority designation is information relating to the client 10 or the server 11 in which manual control by the operator is prioritized for starting and stopping. When manual priority designation is set, even if the activation and deactivation are automatically controlled by the operating state determination means 27, manual activation and deactivation control is given priority.

  When an operator wants to manually stop and start the client 10 or the server 11 in preference to the automatic control in an emergency or temporarily, the operation status screen (screen data in FIG. 4) is displayed via the input device 17. 21b). As a situation where manual priority designation is made, for example, a situation different from normal operation such as when a plant abnormality occurs or during maintenance and inspection can be considered.

  The operation state table 30 (operation state storage unit) stores various information supplied from the operation state collection unit 24, the operation time measurement unit 26, and the manual priority designation unit 28. Here, FIG. 6 is an explanatory diagram illustrating an example of the operating state table 30.

  The operation state table 30 stores the operation state data of the client 10 and the server 11 acquired by the operation state collection unit 24. The operating state table 30 stores the actual operating time of the client 10 and the server 11 measured by the operating time measuring unit 26. Further, the operating state table 30 sets a manual priority flag for the client 10 or the server 11 for which manual priority is designated by the manual priority designation means 28. In addition, the operation state table 30 stores operation priorities given in an operation time smoothing process (FIG. 12) described later.

  The client 10 further includes a regular exchange information table 31 and a regular exchange determination unit 32. The periodic replacement information table 31 stores the periodic replacement parts, replacement notice time, and replacement recommendation message for each client 10 and server 11. Here, FIG. 7 is an explanatory diagram showing an example of the periodic exchange information table 31.

  The periodic replacement part (replacement part) is a part name that needs to be periodically replaced in each client 10 and server 11. The replacement notice time is the time until the next exchange is notified corresponding to the actual operating time of the client 10 and the server 11. The replacement recommendation message is a message displayed on the display device 18 and presented to the operator when the replacement notice time comes.

  The periodic replacement determination unit 32 compares the actual operating time of each client 10 and server 11 stored in the operating state table 30 with the replacement notice time stored in the periodic replacement information table 31. The regular replacement determination unit 32 supplies a replacement recommendation message to the screen display unit 20 when the actual operation time exceeds the replacement notice time.

  Next, the operation of the plant monitoring apparatus 1 according to the present embodiment, particularly the client 10, will be mainly described.

  The plant monitoring apparatus 1 (client 10) particularly performs four processes.

  The first process is a process for displaying plant data to be monitored and operating states of the clients 10 and the server 11 of the plant monitoring apparatus 1 based on the operation of the operator.

  The second process is a process in which the operating state of each client 10 and server 11 of the plant monitoring apparatus 1 is manually controlled by the operator.

  The third process is a process for automatically controlling the operating states of the client 10 and the server 11 in the plant monitoring apparatus 1.

  The fourth process is a process that utilizes the actual operation time of the client 10 and the server 11.

  First, a process for displaying plant data for monitoring and a process for displaying the operating states of the clients 10 and the server 11 of the plant monitoring apparatus 1 will be described as the first process.

  FIG. 8 is a flowchart for explaining a monitoring screen display process executed by the plant monitoring apparatus 1 (client 10).

  In step S1, the screen display means 20 of the client 10 determines whether or not a monitor screen display request has been accepted. When it is determined that the display request is not received, the screen display unit 20 waits until the display request is received.

  On the other hand, when the screen display means 20 determines that the display request has been received, the plant data is read from the plant data table 16 in step S2. The screen display means 20 reads plant data as shown in FIG. In step S <b> 3, the screen display unit 20 reads screen data 21 a for displaying a monitoring screen from the display screen data table 21. The screen display means 20 reads a trend graph as shown in FIG. 3 and screen data 21a indicating information related to an alarm.

  In step S4, the screen display means 20 generates a monitoring screen based on the plant data read in the data reading steps S2 and S3 and the screen data 21a. In step S <b> 5, the screen display unit 20 causes the display device 18 to display the generated monitoring screen.

  Next, an operation state display process executed by the client 10 based on the operation of the operator will be described.

  FIG. 9 is a flowchart for explaining an operation state screen display process executed by the plant monitoring apparatus 1 (client 10).

  In step S <b> 11, the screen display unit 20 of the client 10 determines whether or not an operation state screen display request has been received. When it is determined that the display request is not received, the screen display unit 20 waits until the display request is received.

  On the other hand, when it is determined that the display request has been received, the screen display unit 20 reads the operating state data of each client 10 and the server 11 from the operating state table 30 in step S12. The screen display means 20 reads operating state data as shown in FIG. The operating state data is periodically collected by the operating state collecting unit 24 via the inter-device communication unit 25.

  In step S <b> 13, the screen display unit 20 reads screen data 21 b for displaying an operation state screen from the display screen data table 21. The screen display means 20 reads screen data 21b as shown in FIG.

  In step S14, the screen display means 20 generates an operation state screen based on the operation state data and the screen data 21b read in the data reading steps S12 and S13. In step S15, the screen display means 20 causes the display device 18 to display the generated operating state screen.

  Next, a process for manually controlling the operating state of each client 10 and server 11 of the plant monitoring apparatus 1 as a second process will be described.

  This operation state manual control process is a process in which the operator manually controls the operation states of the clients 10 and the server 11 via the operation state screen displayed on the display device 18 by the operation state screen display process of FIG. .

  FIG. 10 is a flowchart for explaining the operation state manual control process executed by the plant monitoring apparatus 1 (client 10).

  In step S <b> 21, the start / stop execution unit 22 determines whether a command for starting / stopping the client 10 and the server 11 is received via the operation state screen. Note that the operating state screen is configured such that, for example, selection of start or stop can be accepted as shown in the screen data 21b of FIG. The operator determines increase / decrease of the operating client 10 and server 11 from this operating state screen, and inputs a start or stop instruction via the input device 17. If the start / stop execution unit 22 determines that a command to start / stop is not received, the start / stop execution unit 22 stands by until the command is received.

  If the start / stop execution unit 22 determines that an instruction to start or stop the client 10 and the server 11 has been received, the start / stop execution unit 22 supplies the inter-device communication unit 25 with an instruction to start or stop in step S22. The command to be started or stopped is information regarding the client 10 or the server 11 to be started or stopped and information indicating whether to start or stop.

  In step S <b> 23, the inter-device communication unit 25 transmits a start or stop command to the corresponding client 10 or server 11 via the network. As a result, the client 10 or the server 11 that has received the command starts or stops. That is, the client 10 also controls the operating states of the other clients 10 and the server 11.

  The plant monitoring apparatus 1 having such a client 10 or server 11 can easily increase the number of operating clients 10 and servers 11 based on the operation status and time zone of the plant equipment and the operation of the operator according to the operator personnel system. It can be increased or decreased. The plant monitoring device 1 can be operated efficiently in the decentralized system, and the running cost can be reduced.

  In addition, the plant monitoring device 1 can easily determine and select the number of operating clients 10 or servers 11 required for plant monitoring from the operating state screen, and the client according to the plant operating state and the personnel configuration involved in the operation. 10 and the number of operating servers 11 can be suitably controlled.

  Next, a process for automatically controlling the operating state of each client 10 and server 11 of the plant monitoring apparatus 1 as a third process will be described.

  FIG. 11 is a flowchart for explaining an operation state automatic control process executed by the plant monitoring apparatus 1 (client 10).

  In step S <b> 31, the operating state determination unit 27 reads plant data from the plant data table 16. In step S <b> 32, the operation state determination unit 27 reads operation condition data from the operation condition table 29. In step S <b> 33, the operating state determination unit 27 reads the operating state data of the client 10 and the server 11 from the operating state table 30. The operating state determination unit 27 periodically executes steps S31 to S33.

  In step S <b> 34, the operating state determination unit 27 refers to the operating state table 30 and determines whether there are the client 10 and the server 11 for which the manual priority flag is established. In other words, the operating state determination unit 27 determines whether or not there is an apparatus that is given priority to manual control of the operating state among the clients 10 and the servers 11.

  When the operation state determination unit 27 determines that there is a client 10 or server 11 for which the manual priority flag is established, the client 10 or server 11 for which the manual priority flag is established does not require automatic operation state control processing. Therefore, the process is terminated without controlling the operating state.

  On the other hand, the operating state determination unit 27 proceeds to step S35 to control the client 10 or the server 11 for which the manual priority graph is not established according to the automatic control process. In step S <b> 35, the operating state determination unit 27 determines whether the current operating state of each client 10 and the server 11 (either operating or stopped state) corresponds to the operating condition.

  For example, as shown in the operation condition table 29 of FIG. 5, the operation state determination unit 27 indicates that the client D has “operation day: Monday to Friday”, “operation time: 07:00 to 21:00”, “plant state: It is determined from the plant data and the operating state data of the client D whether or not the operating condition consisting of “rotational speed xxx or more” and “minimum operating number: 2” is satisfied.

  If the operation state determination unit 27 determines that the operation states of the clients 10 and the server 11 correspond to the operation conditions, the operation state determination unit 27 ends the process. When it is determined that the operating states of the client 10 and the server 11 correspond to the operating conditions, the operating client 10 and the server 11 that are operating (starting) are in agreement with the operating conditions and are to continue operating or are stopped. This is a case in which the client 10 and the server 11 in the middle do not match the operating conditions and continue to stop.

  On the other hand, if the operation state determination unit 27 determines that the operation state of the client 10 or the server 11 does not correspond to the operation condition, the operation state determination unit 27 proceeds to step S36. When it is determined that the operating states of the client 10 and the server 11 do not correspond to the operating conditions, the operating client 10 and the server 11 do not match the operating conditions and stop operating, or the stopped client 10 And when the server 11 is activated in accordance with the operating conditions.

  In step S <b> 36, the operating state determination unit 27 supplies a command to start or stop the corresponding client 10 or server 11 to the start / stop execution unit 22.

  In step S <b> 37, the start / stop execution unit 22 transmits a start or stop command supplied via the network to the corresponding client 10 and server 11. As a result, the client 10 or the server 11 that has received the command starts or stops. That is, the client 10 also controls the operating states of the other clients 10 and the server 11.

  The plant monitoring apparatus 1 having the client 10 and the server 11 can automatically control the operation state without entrusting the operator to determine whether to operate or stop, in addition to the effect of the operation state manual control process of FIG. Can do.

  The plant monitoring apparatus 1 includes a situation where many clients 10 are required, such as before starting or stopping the plant equipment 3, and a situation where monitoring and control can be performed with a small number of clients 10 such as during a regular inspection of the plant equipment 3 or at night. The number of operating units can be controlled appropriately according to the required number of clients 10 and servers 11 according to the situation. Thereby, the plant monitoring apparatus 1 can aim at reduction of a running cost.

  In addition, under conditions different from normal operation, such as when a plant abnormality occurs or during maintenance and inspection, the plant monitoring device 1 can give priority to automatic stop / start by the operator over automatic control, and efficiency according to the situation. System operation can be realized.

  In the operation state manual control process and the operation state automatic control process, the operation states of all (self and other) clients 10 and servers 11 including the own device may be controlled, or other clients 10 and The operating state of only the server 11 may be controlled. When the client 10 controls its own operating state, the start / stop execution means 22 can control the operating state at the OS level.

  Next, a process that uses the actual operation time of the client 10 and the server 11 as a fourth process will be described. The process utilizing the actual operation time is a process for smoothing the operation time of the client 10 and the server 11 and a process for notifying the time for replacement of the regular replacement parts. Details of each process will be described below.

  FIG. 12 is a flowchart for explaining the operating time smoothing process executed by the plant monitoring apparatus 1 (client 10).

  In step S <b> 41, the operating state determination unit 27 reads the operating state data stored in the operating state table 30. In step S42, the operation state determination unit 27 refers to the actual operation time from the read operation state data, and compares the actual operation time between devices operating under the same conditions. The operation state determination unit 27 compares, for example, a plurality of clients 10 as a device operating under the same condition, a comparison between a plurality of servers 11, or a comparison between devices having the same function.

  In step S <b> 43, the operation state determination unit 27 assigns an operation priority between the devices based on the comparison result of the actual operation time, and stores the operation priority in the operation state table 30. When the operation priority order is stored in advance in the operation state table 30, the operation state determination unit 27 updates the operation priority order. The operating state determination unit 27 assigns a higher priority in order from an apparatus with a shorter actual operating time, and operates the client 10 or the server 11 with a higher priority (having a shorter actual operating time) preferentially.

  The operation state determination unit 27 controls the operation states of the client 10 and the server 11 based on the updated operation priority order. For example, the operation state determination unit 27 preferentially activates a device having a higher operation priority when executing the instruction step S36 of the operation state automatic control process of FIG.

  The plant monitoring apparatus 1 having such a client 10 and the server 11 smoothes the operating time of the client 10 and the server 11, and therefore the entire plant monitoring apparatus 1 is compared with a case where all the apparatuses are operated continuously. Life can be extended. Moreover, the plant monitoring apparatus 1 can reduce the running cost accompanying the frequent occurrence of regular replacement products.

  Next, the details of the process of notifying the time to replace the regular replacement parts using the actual operation time will be described.

  FIG. 13 is a flowchart for explaining the component replacement notification process executed by the plant monitoring apparatus 1 (client 10).

  In step S <b> 51, the periodic replacement determination unit 32 reads the operating state data stored in the operating state table 30. In step S <b> 52, the periodic replacement determination unit 32 reads the periodic replacement information stored in the periodic replacement information table 31.

  In step S53, the periodic replacement determination unit 32 compares the actual operating time of the read operation state data with the replacement notice time of the periodic replacement information. In step S54, the periodic replacement determination means 32 determines whether there is a client 10 or server 11 whose actual operation time exceeds the replacement notice time. If it is determined that there is no client 10 or server 11 whose actual operation time exceeds the replacement notice time, the periodic replacement determination unit 32 ends the process.

  On the other hand, if it is determined that there is the client 10 or the server 11 whose actual operation time exceeds the replacement notice time, the periodic replacement determination unit 32 displays the replacement recommendation message in the periodic replacement information table 31 on the screen display unit in step S55. 20 is supplied. The screen display means 20 generates an alarm screen for notifying the received message. In step S56, the screen display means 20 causes the display device 18 to display the generated alarm screen.

  The plant monitoring apparatus 1 having such a client 10 and server 11, its control method, and control program can notify the operator of the periodic replacement timing of parts of the client 10 and server 11 using a message. As a result, the operator may replace the part according to the message without being aware of the part replacement time in normal times. Thereby, the plant monitoring apparatus 1 can prevent the situation where parts replacement by an operator is not performed, and can prevent the failure of the system due to the aging deterioration of the periodic replacement parts.

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

  For example, the plant monitoring apparatus 1 in the present embodiment can be configured as plant monitoring apparatuses 1a to 1d as described below.

  FIG. 14 is a diagram illustrating a first modification of the plant monitoring apparatus 1 in the present embodiment.

  FIG. 15 is a diagram illustrating a second modification of the plant monitoring apparatus 1 in the present embodiment.

  FIG. 16 is a diagram illustrating a third modification of the plant monitoring apparatus 1 in the present embodiment.

  FIG. 17 is a diagram illustrating a fourth modification of the plant monitoring apparatus 1 in the present embodiment.

  The plant monitoring devices 1a to 1d are different from the plant monitoring device 1 of FIG. 1 in terms of operating time measuring means 26, manual priority designating means 28, operating condition table 29, operating state determining means 27, periodic replacement information table 31 and periodic replacement. Any or all of the determination means 32 are omitted.

  As described above, the plant monitoring devices 1, 1 a to 1 d have only necessary functions, and can simplify the configuration. The plant monitoring devices 1 and 1a to 1d can appropriately control the operating state. Moreover, the plant monitoring apparatus 1, 1a-1d can reduce a running cost suitably.

  Moreover, since the plant monitoring apparatus 1 can acquire the effect mentioned above irrespective of the installation number of the client 10 and the server 11, the number of the client 10 and the server 11 is not limited.

  Furthermore, the configuration capable of controlling the operating states of itself and other clients 10 and the server 11 does not have to be provided in all apparatuses, and may be provided in at least one client 10 or server 11.

DESCRIPTION OF SYMBOLS 1 Plant monitoring apparatus 10 Client 11 Server 15 Plant data input means 16 Plant data table 17 Input apparatus 18 Display apparatus 19 Dialog screen request means 20 Screen display means 21 Display screen data table 22 Start / stop execution means 23 Hard switch (hard SW)
24 operating state collecting unit 25 inter-device communication unit 26 operating time measuring unit 27 operating state determining unit 28 manual priority specifying unit 29 operating condition table 30 operating state table 31 periodic exchange information table 32 periodic exchange determining unit

Claims (9)

A plurality of devices that take in input values from each sensor installed in the plant facility and monitor the plant facility, and the plurality of devices form a network;
At least one of the plurality of devices is
Plant data input means for capturing an input value from each sensor installed in the plant equipment;
Plant data storage means for storing the input value as the plant data;
Inter-device communication means for communicating with the other device via the network;
An operating state collecting unit that collects an operating state indicating whether the plurality of devices are activated or stopped through the inter-device communication unit;
Operating state storage means for storing the operating state as operating state data;
Display means for displaying the operating state data;
Start / stop execution means for transmitting a start / stop command for starting or stopping the other device via the inter-device communication means;
A plant monitoring apparatus comprising: An input means for receiving an instruction to start or stop the other device from an operator;
The plant monitoring apparatus according to claim 1, wherein the start / stop execution unit transmits the start / stop when the input unit receives an instruction to start or stop. Operating condition storage means for storing operating condition data that is a condition for operating each of the devices;
When it is determined based on the operating state data whether the operating state of each device corresponds to the operating condition data, and it is determined that the operating state of each device does not correspond to the operating condition data An operation state determination unit that supplies a command to start or stop each of the devices to the start / stop execution unit;
The plant monitoring apparatus according to claim 1, wherein the start / stop execution unit generates the start / stop command when the command is received from the operating state determination unit.   The plant monitoring apparatus according to claim 3, wherein the operating condition data includes a plant state that can be discriminated by the plant data. An instruction means for manually controlling the operating state of the other device, and an input means for receiving from the operator an instruction to start or stop the other device when the manual control instruction is received,
5. The operation state determination unit according to claim 3, wherein when the input unit receives an instruction to perform manual control, the operation state determination unit gives priority to the start or stop instruction received by the input unit without following the determination. 6. Plant monitoring device. The operating state storage means stores the cumulative operating time of each device as the actual operating time,
The operation state determination means assigns a higher priority in order from the device with the shorter actual operation time, and controls the operation state of each device so that the device with the higher priority is operated with priority. 3. The plant monitoring apparatus according to 3. The operating state storage means stores the cumulative operating time of each device as the actual operating time,
Periodic replacement information storage means for storing a part that needs to be replaced periodically for each of the devices, and a replacement notice time that is a time until a notice of replacement of the part,
7. The apparatus according to claim 1, further comprising a periodic replacement determination unit that compares the actual operation time with the replacement notice time and notifies an operator when the actual operation time exceeds the replacement notice time. The plant monitoring device described. In the control method of the plant monitoring device that has a plurality of devices that take in input values from each sensor installed in the plant facility and monitor the plant facility, the plurality of devices form a network,
At least one of the plurality of devices is
A plant data input step for capturing an input value from each sensor installed in the plant equipment;
A plant data storage step of storing the input value as the plant data;
An operation state collection step of collecting operation states indicating whether the plurality of devices are activated or stopped by inter-device communication;
An operation state storage step for storing the operation state as operation state data;
A display step for displaying the operating state data;
A start / stop execution step for transmitting a start / stop command for starting or stopping the other device by communication between the devices;
A method for controlling a plant monitoring apparatus, comprising: In the control program of the plant monitoring device that has a plurality of devices that take in input values from each sensor installed in the plant facility and monitor the plant facility, the plurality of devices form a network,
In at least one of the plurality of devices,
A plant data input step for capturing an input value from each sensor installed in the plant equipment;
A plant data storage step of storing the input value as the plant data;
An operation state collection step of collecting operation states indicating whether the plurality of devices are activated or stopped by inter-device communication;
An operation state storage step for storing the operation state as operation state data;
A display step for displaying the operating state data;
A start / stop execution step for transmitting a start / stop command for starting or stopping the other device by communication between the devices;
A control program for a plant monitoring apparatus, characterized in that