JP2010117742A - Plant monitoring device - Google Patents

Abstract

[PROBLEMS] Regardless of the terminal used by the operator, the same screen as that displayed on another terminal can be easily displayed without re-inputting the screen to be monitored and the instrument name, and the monitoring operation can be performed continuously. A possible plant monitoring device is provided.
A control device 2 for controlling a plant and an operator identification function 9 for identifying an operator, and the plant information input via the control device 2 is displayed on a screen to monitor the plant. A plurality of monitoring operation terminals 11 and 12 that perform the operation, a communication network to which the monitoring operation terminal is connected, and information on a screen displayed on the monitoring operation terminal is acquired via the communication network and held for each operator Device 7. Each of the monitoring operation terminals displays a screen according to the screen display information of the operator 8 held by the information holding device 7 based on the operator identification function 9 when the operator 8 logs on.
[Selection] Figure 2

Description

  The present invention relates to an instrumentation system, and more particularly to a plant monitoring apparatus applicable to a distributed digital control system in which plant monitoring apparatuses are connected via a network.

  A plant monitoring device of an instrumentation system is usually installed in a central operation room, but monitoring from other than the central operation room has become possible easily with the development of network technology. It is a known technique to limit the monitoring / operating functions that can be used in accordance with the operator of the plant monitoring apparatus. Furthermore, for the same operator, a technique for limiting the monitoring / operation function according to the place where the operation is performed is disclosed (for example, see Patent Document 1). However, although the technique described in Patent Document 1 is effective in limiting the monitoring / operation function, for example, when the operator frequently goes between the central operation room and the plant site in the same factory, the monitoring apparatus is used. No reduction in the effort required to switch the display screen is taken into consideration.

  Patent Document 2 discloses a technique for saving information such as the coordinates of the operation of the mouse and the clicked time in a file in order to reproduce the monitoring screen. According to this technology, the operation of the operator including the movement of the mouse can be completely reproduced together with the monitoring screen based on the stored information.

JP 2006-139353 A JP 2003-256035 A

  Plant monitoring and operation is performed not only by the console in the central control room, but also by human machine interface (HMI) devices such as on-site terminals installed at various locations on the plant site and portable terminals owned by operators. It has become.

  However, for example, when the plant information grasped by the HMI device at the plant site is returned to the central operation room to be examined in detail, it is necessary to display the screen displayed by the HMI device at the site again on the HMI device in the central operation room. . At this time, it is necessary to redisplay the screen displayed on the HMI device at the site by relying on the memo or memory created at the plant site, and the operator is forced to perform work that is troublesome and may cause a mistake.

  The technique described in Patent Document 2 reproduces a monitoring screen, but does not store information for each operator. Therefore, when a plurality of operators use one HMI device, there is a problem that monitoring screens of the operators are mixed and it is difficult to reproduce a desired monitoring screen. In addition, since the monitoring screen is reproduced including the operation of the mouse by the operator, the amount of information to be saved increases, and particularly when information is transmitted and received via the network, there is a problem that a great load is imposed on the network. .

  An object of the present invention is to provide a plant monitoring device that can easily redisplay the same screen as that displayed on other HMI devices regardless of which HMI device is used by a plurality of operators, and can continuously perform a monitoring operation. It is to provide. It is also an object of the present invention to provide a plant monitoring device that can easily redisplay the same screen as previously displayed on the HMI device or another HMI device, regardless of which HMI device is used.

  In order to solve the above problems, the plant monitoring apparatus of the present invention basically has the following configuration.

  A plant monitoring device according to the present invention has a control device for controlling a plant and an operator identification function for identifying an operator, and displays plant information input via the control device on a screen to display the plant information. Information holding device for capturing a plurality of monitoring operation terminals for performing a monitoring operation, a communication network to which the monitoring operation terminal is connected, and information on a screen displayed on the monitoring operation terminal via the communication network for each operator With. Each of the monitoring operation terminals displays a screen according to the screen display information of the corresponding operator held by the information holding device based on the operator identification function when the operator logs on.

  The information holding device is a server shared by the monitoring operation terminal, and this server is a dedicated server for plant operation management or a dual-purpose server also serving as at least one of the monitoring operation terminals.

  More specifically, the plant monitoring apparatus according to the present invention has the following configuration.

  A control device for controlling the plant and an operator identification function that is installed in the central operation room and identifies the operator, and displays the plant information input via the control device on the screen to monitor the plant An operation console and a portable operation unit that has a function of identifying an operator and is portable, and displays the plant information input via the control device on the screen to perform the monitoring operation of the plant. A terminal, a communication network to which the monitoring operation terminal and the portable operation terminal are connected, and information on a screen displayed on the console and the portable operation terminal are captured and held for each operator via the communication network. And an information holding device. The portable operation terminal is displayed on the console of the central operation room according to the screen display information of the operator held by the information holding device based on the operator identification function when the operator logs on. The plant information screen is reproduced and displayed so that the plant monitoring operation performed on the console can be continued on the portable operation terminal. The operator console displays a plant information screen displayed by the operator on the portable operation terminal according to the screen display information of the operator held by the information holding device based on the operator identification function when the operator logs on. Reproduced and displayed, the plant monitoring operation performed at the portable operation terminal can be continued at this console.

  The portable operation terminal reproduces and displays the screen previously displayed on the portable operation terminal according to the screen display information of the operator held by the information holding device when the operator logs on, and this portable operation terminal Allows plant monitoring operations performed on the terminal to be continued. The operator console reproduces and displays the screen previously displayed on the operator console according to the screen display information of the operator held by the information holding device when the operator logs on, and the plant used on the operator console Allows monitoring operations to continue.

  In addition, the information holding device is a server shared by the console and the portable operation terminal, and this server is a dedicated server for plant operation management, or a dual-purpose server that also serves as the console.

  According to the present invention, even if the operating console or operating terminal used is changed to another operating console or operating terminal, the operator can change the monitoring target and the monitoring terminal without re-inputting the screen or instrument name to be monitored. It is possible to provide a plant monitoring apparatus that can display the same screen and can continuously perform a monitoring operation. It is also possible to provide a plant monitoring apparatus that can easily re-display the same screen that has been displayed in the past. As a result, it is possible to reduce the operator's operation mistakes, shorten the operation time, and improve the operation efficiency.

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

  FIG. 1 shows the overall configuration of a system to which a plant monitoring apparatus according to the present invention is applied. This system includes equipment arranged in a central operation room, equipment arranged in a plant site, a communication network 4, a field-installed operation terminal 13, a portable operation terminal 12, and a plant control device and a plant site object. It is comprised from the exclusive wiring 6 which connects a control apparatus (monitored apparatus).

  The devices arranged in the central operation room include a console 11, an operation management server 7, a control device 2 that performs process data collection and control calculation, a control network 3, and a large display 14. The console 11 is a monitoring operation terminal that performs plant monitoring operations. The console 11, the operation management server 7, and the control device 2 are connected to each other via the control network 3, and the operation console 11 and the operation management server 7 are connected to the communication network 4. The large display 14 is connected to the console 11 and is used for monitoring by a large number of people. The function of the operation management server 7 may be constructed in the console 11 without providing the operation management server 7. In this embodiment, a case where the operation management server 7 is used will be described.

  On the other hand, a process manufacturing apparatus 5 is arranged on the plant site side, and a sensor 53 and a control valve 52 attached to the process manufacturing apparatus 5 are connected to the control apparatus 2 via a dedicated wiring 6. A field-installed operation terminal 13 and a wireless access point 41 are also disposed and connected to the communication network 4. At the plant site, a portable operation terminal 12 equipped with a wireless communication device can be used, and this portable operation terminal 12 is connected to the communication network 4 via a wireless access point 41. The portable operation terminal 12 and the on-site operation terminal 13 together with the console 11 fulfill the functions of a monitoring operation terminal that performs plant monitoring operations.

  In this way, the console 11, the operation management server 7, the portable operation terminal 12, and the field installation type operation terminal 13 are connected via the communication network 4.

  An operator identification device 9 can be attached to the console 11, the portable operation terminal 12, and the field installation type operation terminal 13 to provide an operator identification function. The operator identification device 9 is a device for identifying an operator who intends to use the console 11 or the operation terminals 12 and 13, and includes, for example, fingerprint authentication, vein authentication, barcode, RFID (Radio) There is a method such as authentication by Frequency Identification). The operator logs on through authentication by the operator identification device 9 before operating the console 11 and the operation terminals 12 and 13. When the operator identification device 9 is not attached, the console 11 and the operation terminals 12 and 13 themselves have an operator identification function and authenticate based on operator identification information (ID, password, etc.) input by the operator. In this embodiment, a case where the operator identification device 9 is attached will be described.

  The operator usually logs on to the console 11 in the central operation room and performs plant monitoring operations. When a large number of operators monitor at the same time, the large display 14 is used. When work that needs to be confirmed at the plant site occurs during the monitoring operation, that is, when the timing of quality confirmation comes in the middle of the manufacturing process, or when an abnormality is reported in the manufacturing process, the operator is portable. The monitoring operation can be continued depending on whether the user moves to the plant site with the operation terminal 12 or moves to the installation site of the on-site operation type terminal 13 at the plant site.

  The site-installed operation terminal 13 is mainly different from the portable operation terminal 12 in that the operator cannot carry it, and there are no significant differences in the functions provided and the processes to be executed. Therefore, the case where the portable operation terminal 12 is used as an operation terminal will be described below, and the field-installed operation terminal 13 conforms to the portable operation terminal 12 and will not be described.

  Now, when an abnormality occurs at the plant site while the operator is performing a monitoring operation in the central operation room, conventionally, it has been necessary to perform the following work.

  First, a screen related to plant abnormality is displayed on the console of the central operation room, and the plant operation status is confirmed. Make a note of the displayed screen and instrument name. Next, in order to carry out detailed confirmation and recovery procedures, the user moves to the plant site with a portable operation terminal. In order to display the screen that was displayed on the console of the central control room at the site, log on to the portable operation terminal and perform the screen call operation according to the screen and instrument name that you noted earlier. Since the screen size of the portable operation terminal is a fraction of the screen size of the console, the display area is limited, so it is necessary to display the part that is subject to monitoring operations by performing several screen operations such as scrolling. There is. Furthermore, after performing the monitoring operation at the site, to return to the central operation room and display the same screen as that displayed at the site on the console, enter the screen and instrument name again on the console. A call operation must be performed.

  As described above, every time the operator goes back and forth between the central operation room and the plant site, the operator is forced to perform an operation that requires a trouble of recording a monitoring screen or a recall operation, which may cause a mistake.

  Using the plant monitoring apparatus according to the present invention, monitoring can be performed without re-inputting the screen to be monitored and the instrument name, regardless of which operator console or operator terminal is used to switch to another operator console or operator terminal. The operation can be continued.

  A block diagram of a plant monitoring apparatus according to the present invention is shown in FIG.

  The console 11 includes a communication unit 113 that communicates with the control device 2, a data processing unit 111 that processes data, a display unit 112 that displays a result of data processing on a screen, an operation unit 115 that receives an operation input from an operator, From a logon processing unit 114 that permits an operator to use this terminal, a screen information unit 117 that stores information about a screen that is being displayed, and a screen initial value unit 116 that holds information about a screen that is displayed first after logon. It is comprised and the operator identification device 9 is attached.

  The operation terminal 12 is different in size from the console 11 but has a similar block configuration. That is, it is composed of a communication unit 123, a data processing unit 121, a display unit 122, an operation unit 125, a logon processing unit 124, a screen information unit 127, and a screen initial value unit 126, and an operator identification device 9 is attached.

  Hereinafter, both the console and the operation terminal are collectively referred to as “terminal”.

  The operation management server 7 is composed of an operator-specific information management unit 71 and an operator-specific screen display information unit 72 that holds the operator-specific screen display information 721. The operation management server 7 collects screen information from each terminal and displays the screen at logon. Has the role of providing information. The screen information is information related to the screen displayed by the operator, and includes information necessary to reproduce (redisplay) the same screen as the screen displayed by the operator later. Specifically, the screen information includes monitoring operation date and time, display screen name, operation position coordinates on the screen, window screen name, instrument window screen name, and the like.

  The operator-specific information management unit 71 identifies screen information collected from each terminal for each operator, and stores this screen information in the operator-specific screen display information unit 72 as operator-specific screen display information 721.

  Further, the operator-specific information management unit 71 reads the operator-specific screen display information 721 from the operator-specific screen display information unit 72 and transmits it to each terminal. When there is no operator-specific screen display information 721 corresponding to the operator, such as when logging on for the first time, the operator-specific information management unit 71 determines whether the data is blank The screen display information 721 is created and held for the operator, and information on a default screen set in advance is transmitted to each terminal so that the default screen is displayed.

  The screen display information for each operator 721 held by the screen display information section for each operator 72 is updated to the latest information every time the operation management server 7 collects screen information. Alternatively, the history of display information for a predetermined past period or a predetermined number of times may be accumulated without updating the screen display information for each operator 721 and held as history information for screen display for each operator. . Below, the example which updates the screen display information 721 classified by operator to the newest information is described. An example of holding the history information will be described later with reference to FIG.

  The screen display information 721 for each operator records information on the terminal being logged on and screen information for each operator. The terminal identification number, the monitoring operation date and time, the display screen name, the operation position coordinates on the screen, the window Includes screen name, instrument window screen name, etc. The operation position coordinates are coordinates for determining which range is displayed when a part of the display screen is displayed on the terminal. For example, only a range of a certain size according to the terminal can be displayed on the terminal with the operation position coordinates at the upper left or the center.

  If the operation management server 7 is not provided, the console 11 has the function of the operation management server 7, so the console 11 holds the screen display information 721 for each operator.

  Next, the operation of the system to which the plant monitoring apparatus according to the present invention is applied will be described.

  When the operator A8 logs on to the console 11 through authentication by the operator identification device 9, the console 11 receives log-on information that the operator A8 has logged on from the console 11 via the logon processing unit 114. Send to 7. The per-operator information management unit 71 of the operation management server 7 reads out the per-operator screen display information 721 corresponding to the operator A8 from the per-operator screen display information unit 72 and transmits it to the console 11 as initial screen information. This initial screen information is stored in the initial screen value section 116 of the console 11, processed by the data processing section 111, and displayed as a graphic or character string on the display section 112.

  FIG. 3 shows a display example of the display unit 112 of the console 11. The display unit 112 includes a logon button 1123, an operator display unit 1124, a system display unit 1125, a main screen display unit 1121, and an instrument window 1122. The logon button 1123 is used when the operator logs on. The operator display unit 1124 displays the name of the logged-on operator and the like. The system display unit 1125 includes buttons for alarm and screen display. The main screen display unit 1121 is a main screen for executing a plant monitoring operation, and the instrument window 1122 is a window in which an instrument is displayed and can be operated by an operator. The operator performs a plant monitoring operation by switching the display on the main screen display unit 1121 or calling the instrument window 1122.

  Here, the operation when the operator A8 has the operation terminal 12, moves to the plant site, and performs the monitoring operation will be described with reference to FIG.

  When the operator A8 logs on to the operation terminal 12 through authentication by the operator identification device 9, the operation terminal 12 obtains logon information that the operator A8 has logged on from the operation terminal 12 via the logon processing unit 124. Send to 7. The per-operator information management unit 71 of the operation management server 7 reads out per-operator screen display information 721 corresponding to the operator A8 from the per-operator screen display information unit 72, and transmits it to the operation terminal 12 as screen initial information. This initial screen information is stored in the initial screen value section 126 of the operation terminal 12, processed by the data processing section 121, and displayed as a graphic or a character string on the display section 122.

  This screen initial information is the display information related to the screen and instrument window that the operator A8 has been subject to the monitoring operation on the console 11 earlier. Since the operation terminal 12 initially displays the screen based on this information, the operation terminal 12 can display the same screen as that displayed on the console 11. Therefore, the operator A8 can continue the monitoring operation on the console 11 at the operation terminal 12 as it is.

  FIG. 3 shows a display example of the display unit 122 of the operation terminal 12. The display unit 122 includes a logon button 1223, an operator display unit 1224, a system display unit 1225, a main screen display unit 1221, an instrument window 1222, and an entire screen display unit 1226. The logon button 1223, the operator display unit 1224, the system display unit 1225, the main screen display unit 1221, and the instrument window 1222 have the same functions as the display unit 112 of the console 11.

  However, since the screen display size of the operation terminal 12 is smaller than that of the console 11, the main screen display unit 1221 displays a screen around the operation position coordinates as shown in FIG. The operation position coordinates are included as an operation position in the screen display information 721 by operator provided from the operation management server 7. In addition, the instrument window 1222 omits graphic display such as a bar graph in order to provide a compact display. The entire screen display unit 1226 displays the entire monitoring screen in order to select a portion to be displayed and monitored on the main screen display unit 1221.

  Even when the large display 14 connected to the console 11 is selected as the display device for the monitor operation, only the display unit 112 is replaced with the large display 14 in the example of performing the monitoring operation on the console 11. The same screen as that displayed on the terminal can be displayed. In the case of the large display 14, as shown in FIG. 3, the main screen display can be displayed in a window format without being reduced, and a plurality of windows can be displayed simultaneously with other display screens.

  In this way, the operator can display the same screen that was displayed on the other terminal or large display immediately before using any console or operation terminal, and can continue monitoring operations. You can continue.

  It should be noted that a thin client configuration can be adopted as the configuration method of the operation terminal device. A configuration example when the operation terminal has a thin client configuration is shown in FIG. In the thin client configuration, the operation terminal is separated into a portable unit 12a and a fixed installation type main unit 12b, the portable unit 12a is used as an operation terminal with a thin client configuration, and the main unit 12b is called a terminal server 16. It may be provided in a server dedicated to the thin client configuration, or may be provided in the operation management server 7 or the console 11. In the present embodiment, the main body 12 b is provided in the terminal server 16.

  The portable unit 12a includes a display unit 122, an operation unit 125, and a logon processing unit 124, and further includes a thin client control unit 128. An operator identification device 9 is attached.

  The main body unit 12b includes a data processing unit 121, a communication unit 123, a screen initial value unit 126, a screen information unit 127, and a thin client control unit 129.

  The display unit 122, the operation unit 125, the logon processing unit 124, the data processing unit 121, the communication unit 123, the screen initial value unit 126, and the screen information unit 127 perform the same processing as the operation terminal 12 described above. The thin client control units 128 and 129 have a function of connecting the portable unit 12a and the main body unit 12b and transmitting / receiving information to / from each other. Therefore, this thin client configuration is logically included in the block configuration of the operation terminal 12 shown in FIG.

  A plurality of thin client configurations (pairs of the portable unit 12a and the main unit 12b) can be provided in one system. In this case, a plurality of pairs of the portable unit and the main body unit are provided, such as the portable unit 12a and the main body unit 12b and the portable unit 15a and the main body unit 15b in FIG. The main body can be provided in the same terminal server 16 or in the operation management server 7 or the console 11.

  Further, even when the operation terminal has a thin client configuration, the operation management server 7 can be omitted. In this case, the function of the operation management server 7 is constructed in the console 11 or the terminal server 16. The operator-specific screen display information 721 is held by the console 11 or the terminal server 16.

  Here, a processing procedure of the terminal and the operation management server 7 after the operator logs on to the terminal and logs off will be described with reference to FIG.

  When the operator logs on to the terminal, the terminal transmits logon information indicating which operator logged on from which terminal to the operation management server 7 (S100). The operation management server 7 holds information indicating which operator is logged on from which terminal.

  After the operator logs on, the operator-specific information management unit 71 of the operation management server 7 checks whether the logged-on operator is logged on to another terminal (S101).

  If the operator is logged on to another terminal, a logoff request is sent to that terminal (S102). The terminal to which the logoff request is sent forcibly cancels (that is, logs off) the logon state of the operator to the terminal.

  Next, the terminal receives screen display information 721 for each operator corresponding to the logged-on operator from the operation management server 7 (S103).

  Subsequently, the terminal displays the screen initial information as a graphic or a character string based on the received screen display information for each operator 721 (S104).

  Thereafter, the screen display operation on the terminal is performed by the operator (S105). If no operation is performed for a predetermined time (determined in S106), the screen information is transmitted to the operation management server 7 (S108). ) Log off. The transmitted screen information is identified by the operator information management unit 71 of the operation management server 7 for each operator, and is stored in the operator-specific screen display information unit 72 as the individual screen display information 721.

  Even if a screen display operation is performed by the operator within a predetermined time in S106, if the operator executes a logoff request (determined in S107), screen information is transmitted to the operation management server 7 (S108). ) Log off.

  Further, when the logged-on operator logs on to another terminal (determined in S101), there is a logoff request from another terminal (determined in S107) by the process of S102, and similarly to the operation management server 7. The screen information is transmitted (S108), and the user logs off.

  The procedure described above has been devised to effectively transmit screen information while reducing the communication load between the terminal and the operation management server 7. When the communication performance of the communication network 4 is high, the screen information may be transmitted from the terminal to the operation management server 7 every predetermined time or whenever the screen display operation of the operator is performed. Or you may decide to transmit screen information to the operation management server 7 from a terminal according to the instruction | indication via an operator's screen display operation.

  In addition, when an operator who is logged on to a certain terminal logs on to another terminal, it is possible to have a system that can log on to multiple terminals at the same time without logging off the previously logged-on terminal. . In this case, the processing of S101 and S102 of FIG. 4 is omitted, and in S107, the process proceeds to S108 and logs off only when the operator executes a logoff request of the terminal being operated.

  In the above embodiment, the example has been described in which the screen display information 721 for each operator is updated (overwritten) to the latest information, and the latest screen displayed most recently by the operator is displayed again on the terminal. Without overwriting the screen display information 721 for each operator, the history of display information for a predetermined past period or a predetermined number of times is accumulated in a time series and retained as history information for screen display for each operator. Thus, the screen displayed by the operator from the past as well as the past can be displayed again on the terminal.

  Below, the Example which redisplays not only the newest screen displayed most recently but the screen displayed in the past is described using FIG. In the present embodiment, the console 11 is used as a terminal, but the same configuration is performed when the operation terminal 12 is used, and the same processing is executed.

  In this example, the console 11 includes a history selection unit 118, and the operation management server 7 includes an operator-specific screen display history information unit 73, and holds operator-specific screen display history information 731. The screen display history information 731 for each operator is obtained by accumulating the screen display information 721 for each operator shown in FIG. 2 from the past to the present.

  When the operation management server 7 is not provided, the console 11 or the terminal server 16 holds the screen display history information 731 for each operator.

  After the operator A8 logs on to the console 11, the operator-specific information management unit 71 of the operation management server 7 reads the operator-specific screen display history information 731 of the operator A8 and transmits it to the terminal. Can be displayed on the console 11 in the past. The operator A8 can select the screen display history information 731 for each operator in time series via the history selection unit 118 of the console 11. Specifically, a list of screen display history information for each operator 731 is displayed on the display unit 112 of the console 11, and the operator A8 selects past desired screen information using, for example, the display screen name as an index. indicate.

  These processes are executed in S103 and S104 of FIG. That is, the terminal receives the screen display history information 731 classified by operator from the operation management server 7 in S103, displays the list of screen display history information 731 classified by operator in S104, and displays the screen information selected by the operator. .

  With the above configuration, the operator A8 can easily re-display previously displayed screens and perform a monitoring operation by selecting screen information to be displayed from the screen display history information 731 for each operator. .

  Even with the configuration described above, it is possible to perform screen display based on the latest screen information at the time of logon. In this case, when logging on, the operator-specific information management unit 71 reads the latest screen information from the operator-specific screen display history information 731 and transmits it to the terminal as screen initial information. This process is executed in S103 of FIG.

  When displaying a past screen in the middle of the monitoring operation, the operator causes the display unit 112 to display a list of screen display history information 731 for each operator from the operation unit 115 via the history selection unit 118, and this list. A screen display operation is performed in which desired screen information is selected and displayed. At this time, if the latest screen information is selected, the latest screen information held (stored) immediately before by the operator-specific screen display history information section 73 can also be displayed. This process is executed in S105 of FIG.

  As described above, the example in which the operator selects and displays the screen information from the screen display history information 731 for each operator has been described. However, it is possible to display a screen previously displayed by an operator other than the operator. It is also possible. In this case, when displaying the list of screen display history information 731 for each operator on the display unit 112, the operator inputs operator identification information (such as ID) for identifying the operator to be displayed to the terminal. A list of operator-specific screen display history information 731 is displayed, and a screen display operation of selecting and displaying desired screen information from the list is executed. In this case as well, if the latest screen information is selected, the latest screen information displayed by the operator other than the user can be displayed.

  In order to display a screen displayed by an operator other than himself at the time of logon, the operator inputs operator identification information (such as ID) for identifying the operator to be displayed to the terminal at the time of logon. A list of screen display information 731 for each operator is displayed. This process is executed in S100, S103, and S104 of FIG.

  In addition, in order to display a screen displayed by an operator other than himself during the monitoring operation, the operator inputs operator identification information (such as ID) identifying the operator to be displayed to the terminal during the monitoring operation. Then, a list of screen display information 731 for each operator of the operator is displayed. This process is executed in S105 of FIG.

  In addition, as shown in FIG. 2, even when the operation management server 7 includes the screen display information unit 72 for each operator and holds screen display information 721 for each operator (that is, the latest screen information), The latest screen displayed by an operator other than can be displayed.

  To display at the time of logon, the operator also inputs operator identification information (ID or the like) for identifying the operator to be displayed to the terminal at the time of logon, and displays the screen display information 721 for each operator of the operator. This process is executed in S100, S103, and S104 of FIG. In order to display in the middle of the monitoring operation, the operator inputs operator identification information (ID or the like) for identifying the operator to be displayed on the terminal, and displays this operator-specific screen display information 721. This process is executed in S105 of FIG.

  As described above, a screen displayed by an operator other than the user can be called up and displayed to perform a monitoring operation.

  In the embodiments so far, the example in which the screen for performing the monitoring operation is continuously displayed on a terminal different from that used immediately before has been described, but the present invention displays the latest on the same terminal. It can also be applied to redisplaying the latest screen or screens displayed in the past. In this case, the only difference is that the terminal used is the same as the previous embodiment, and the processing of the terminal and the operation management server 7 is not changed.

  As described above, according to the present invention, the same screen as previously displayed without re-inputting the screen to be monitored or the instrument name regardless of which console or operation terminal the operator uses. Can be displayed, and a plant monitoring apparatus capable of continuous monitoring operation can be provided.

  Further, even when a plurality of operators use the same console or operation terminal, since the screen information is held for each operator, it is possible to easily reproduce the monitoring screen for each operator. Furthermore, since the screen information is held at log-off, every predetermined time, or based on the operator's instruction, the amount of information to be saved is small, and the communication load on the network can be reduced even when information is transmitted / received via the network. .

It is a figure which shows the whole structure of the system to which the plant monitoring apparatus by this invention is applied. It is a figure which shows the block configuration of the plant monitoring apparatus by this invention. It is a figure which shows the example of a screen display of the display part of a console, the display part of an operation terminal, and a large sized display. It is a figure which shows the process sequence from logon to logoff of a console / operating terminal and an operation management server. It is a figure which shows the block configuration of a plant monitoring apparatus when an operation management server hold | maintains screen display log | history information classified by operator. It is a figure which shows the structural example in case an operation terminal is a thin client structure.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 2 ... Control apparatus, 3 ... Control network, 4 ... Communication network, 5 ... Process manufacturing apparatus, 6 ... Dedicated wiring, 7 ... Operation management server, 8 ... Operator A, 9 ... Operator identification apparatus, 11 ... Console 12 ... portable operation terminal, 12a, 15a ... portable part, 12b, 15b ... main body part, 13 ... on-site operation type terminal, 14 ... large display, 16 ... terminal server, 71 ... information management part by operator, 72 ... Screen display information section by operator, 73 ... Screen display history information section by operator, 111, 121 ... Data processing section, 112, 122 ... Display section, 113, 123 ... Communication section, 114, 124 ... Logon processing section 115, 125 ... operation unit, 116, 126 ... screen initial value unit, 117, 127 ... screen information unit, 118 ... history selection unit, 128, 129 ... thin client control unit, 721 ... by operator Surface display information, 731 ... operator by screen display history information.

Claims (9)

In a plant monitoring device that performs plant monitoring operations,
A control device for controlling the plant;
A plurality of monitoring operation terminals having an operator identification function for identifying an operator, displaying plant information input via the control device on a screen and performing a monitoring operation of the plant,
A communication network to which the monitoring operation terminal is connected;
An information holding device that captures information on the screen displayed on the monitoring operation terminal via the communication network and holds the information for each operator;
Each of the monitoring operation terminals displays a screen according to the screen display information of the corresponding operator held by the information holding device based on the operator identification function when the operator logs on.   2. The plant monitoring apparatus according to claim 1, wherein the information holding device is a server shared by the monitoring operation terminal, and this server is a dedicated server for plant operation management, or a dual-purpose server also serving as at least one of the monitoring operation terminals. A plant monitoring device. In a plant monitoring device that performs plant monitoring operations,
A control device for controlling the plant;
An operator console installed in a central operation room, having an operator identification function for identifying an operator, displaying plant information input via the control device on a screen and performing a monitoring operation of the plant,
A portable operation terminal that is portable and has an operator identification function for identifying an operator, displays the plant information input via the control device on the screen, and performs the monitoring operation of the plant,
A communication network to which the monitoring operation terminal and the portable operation terminal are connected;
An information holding device that captures and holds information on the screen displayed on the console and the portable operation terminal via the communication network for each operator;
The portable operation terminal is displayed on the console of the central operation room according to the screen display information of the operator held by the information holding device based on the operator identification function when the operator logs on. The plant information screen is reproduced and displayed, and the plant monitoring operation performed on the console can be continued on this portable operation terminal,
The operator console displays a plant information screen displayed by the operator on the portable operation terminal according to the screen display information of the operator held by the information holding device based on the operator identification function when the operator logs on. A plant monitoring apparatus characterized in that it reproduces and displays the plant monitoring operation that has been performed at the portable operation terminal, even at this console. The plant monitoring apparatus according to claim 3, wherein
The portable operation terminal reproduces and displays the screen previously displayed on the portable operation terminal according to the screen display information of the operator held by the information holding device when the operator logs on, and this portable operation terminal The plant monitoring operation that was performed on the terminal can be continued,
The operator console reproduces and displays the screen previously displayed on the operator console in accordance with the screen display information of the operator held by the information holding device when the operator logs on. A plant monitoring device that allows monitoring operations to continue.   5. The plant monitoring apparatus according to claim 3 or 4, wherein the information holding device is a server shared by the console and the portable operation terminal, and the server is a dedicated server for plant operation management or the console. A plant monitoring device that is a dual-purpose server.   5. The plant monitoring apparatus according to claim 3 or 4, wherein the console and the portable operation terminal are configured so that the operator's logoff is performed at predetermined time intervals or based on an operator's operation or instruction. A plant monitoring device that transmits the screen display information to the information holding device.   5. The plant monitoring apparatus according to claim 3, wherein the screen display information includes an identification number of the monitoring operation terminal, a monitoring operation date and time, a name of a display screen displayed on the monitoring operation terminal, and an operation position on the screen. Plant monitoring device including coordinates.   5. The plant monitoring apparatus according to claim 3, wherein the information holding device accumulates the screen display information in time series for each operator, and holds the screen display information as history information of a monitoring operation. Plant monitoring device.   The plant monitoring apparatus according to any one of claims 3, 4, and 8, wherein the monitoring operation terminal relates to an operator who is logged on or an operator different from the logged-on operator. A plant monitoring apparatus that performs screen display according to the screen display information.

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