JP6277848B2 - Display device, monitoring system, display method, and display program - Google Patents

Description

  The present invention relates to a display device for displaying information acquired from a control device in a monitoring system for monitoring a plant, a monitoring system including the display device, a display method and a display program executed by the display device.

  Conventionally, as a monitoring system for controlling and monitoring processes for various plants such as steel plants, chemical plants, and power plants, a control device for controlling processes and an operator station as a human machine interface are provided. Distributed control systems are known.

  A distributed control system is required to simultaneously monitor a plurality of state information. In order to satisfy this requirement, the operator station has a function of displaying image content based on plant state information sent from the control device (see, for example, Non-Patent Document 1). Specifically, the operator station has a function of displaying a group display screen in which a plurality of image contents such as an instrument diagram window for displaying only a part of each piece of status information are arranged vertically and horizontally.

  The above-described instrument diagram window has limited information that can be displayed due to the limitation of the screen size. In order to solve this problem, when one instrument diagram window is selected by a user (an operator such as a plant manager) from a plurality of instrument diagram windows displayed on the group display screen, the operator station displays the instrument diagram. As a screen including all state information corresponding to the window, it further has a function of generating and displaying a loop display screen having a display area larger than that of the instrument diagram window.

Fuji Electric Systems Co., Ltd. Open Integrated Control System FOCUS FOCUS-P Instruction Manual <Operation> Revised 7th July "Section 3 Group Panel" P.2

  When generating the loop display screen, the operator station requests the control apparatus to transmit information necessary for generating the loop display screen. Since the information required at this time varies depending on the type of the instrument diagram window, the time required for the operator station to generate the loop display screen varies depending on the type of the selected instrument diagram window. As a result, the time required for transition from the group display screen to the loop display screen also varies depending on the type of the selected instrument diagram window.

  In addition, in the conventional operator station, the transition (switching) from the group display screen that displays the state information of the control target in different modes to the loop display screen is instantaneously performed after the generation of the loop display screen is completed. .

  For this reason, the user must continue to look at the stationary group display screen until the operator station switches from the group display screen to the loop display screen that displays the control target status information in more detail. In the meantime, it was not possible to confirm that the system was operating normally.

  The present invention has been made in view of the above, and allows the user to confirm that the system is operating normally while switching to a screen that displays the status information of the device to be controlled in more detail. An object of the present invention is to provide a display device, a monitoring system, a display method, and a display program.

  In order to solve the above-described problems and achieve the object, a display device according to the present invention is communicably connected to a control device connected to a plurality of devices installed in a plant, and is connected to the plurality of devices from the control device. A display device that acquires and displays a plurality of state information indicating the state of each device, the display unit capable of displaying the plurality of state information, and display block data for displaying a part of the state information Corresponding to a display block generated from each of the plurality of display blocks of the first screen, and a first screen generation unit that generates data of the first screen having the plurality of display blocks generated for each device. An input unit that accepts a selection input of the display block that displays state information of the device in a larger area than the display block, and corresponds to the display block that is selected and input A second screen generating unit that generates data of a second screen for displaying the state information of the recording device, and one or more that display the display position of the display block that is not selected in the selection input by sequentially changing the display position. The third screen generator generates the data of the third screen, and at least the second screen generated by the second screen generator is displayed on the display unit. And a display control unit that sequentially displays one or more third screens on the display unit.

  In the display device according to the present invention, in the above invention, when the display unit sequentially displays the one or more third screens, the unselected display block moves to a predetermined arrival position of the display unit. It is a group of images that can be seen.

  In the display device according to the present invention, in the above invention, the one or more third screens reach the arrival position set for each display block at the same timing when there are a plurality of the unselected display blocks. It is an image group that looks like this.

  In the display device according to the present invention as set forth in the invention described above, the third screen generation unit determines the speed at which the unselected display block moves on the display unit, the distance to the arrival position of the display block, and the 1 The setting is based on the display time of the third screen.

  The display device according to the present invention is characterized in that, in the above invention, the display time of the one or more third screens is longer than a maximum time required for the second screen generation unit to generate data of the second screen. To do.

  In the display device according to the present invention, in the above invention, the display time of the one or more third screens is based on an actual time required until the second screen is generated and displayed before the display is performed. It is characterized by being defined.

  In the display device according to the present invention, in the above invention, while the display control unit is sequentially displaying the one or more third screens on the display unit, the second screen generation unit is configured to display the second screen. By detecting the accumulated amount of data necessary for generating data at a predetermined timing and comparing the detected value with the accumulated amount of data assumed at the timing, the third amount after the timing is determined. A third screen display setting unit for setting a screen display mode is further provided.

  The display device according to the present invention is the display device according to the above aspect, wherein the unselected display blocks are reduced and arranged on the third screen last displayed in the display unit among the one or more third screens. Features.

  In the above invention, the display device according to the present invention includes a composite screen generation unit that generates a composite screen by combining the second screen and the third screen that is not displayed on the display unit among the plurality of third screens. In addition, the display control unit may display the composite screen on the display unit after the second screen is generated.

  The display device according to the present invention is characterized in that, in the above invention, the composite screen generation unit generates the composite screen by superimposing the second screen on the third screen.

  In the display device according to the present invention, in the above invention, the composite screen generation unit synthesizes the second screen and the third screen having the last display order in the display unit among the one or more third screens. It is characterized by that.

  When the display unit according to the present invention receives selection input of the display block in which the input unit displays the second screen while the display unit is displaying the second screen in the above invention, The second screen generation unit newly generates data of the second screen corresponding to the selected display block, and the third screen generation unit changes the display position of the selected display block. One or more third screen data to be displayed is newly generated, and the display control unit is at least until the display unit displays the second screen newly generated by the second screen generation unit. The one or more newly generated third screens are sequentially displayed on the display unit.

  A monitoring system according to the present invention includes a control device connected to a plurality of devices installed in a plant, and the display device connected to be able to communicate with the control device.

  The display method according to the present invention is communicably connected to a control device connected to a plurality of devices installed in a plant, and acquires a plurality of state information respectively indicating the states of the plurality of devices from the control device. A display method performed by a display device for displaying, wherein a display block data for displaying a part of the state information is generated for each device, and a first display step for displaying the generated plurality of display blocks; From the display block, an input step for receiving a selection input of one display block from among the plurality of displayed display blocks, and status information of the device corresponding to the display block selected and input Is executed in parallel with the second display step for displaying in a large area and the second display step until the second display step is completed. And a display position of said display blocks unselected is sequentially changed in the selection input, characterized in that it comprises a third display step of displaying a region other than the display region by the second display step.

  The display program according to the present invention is communicably connected to a control device connected to a plurality of devices installed in a plant, and acquires a plurality of state information respectively indicating the states of the plurality of devices from the control device. A first display step of generating, for each device, display block data for displaying a part of the state information on the display device to be displayed, and displaying the generated plurality of display blocks, and a plurality of displayed display blocks An input step of accepting a selection input of one of the display blocks from among the display blocks, and status information of the device corresponding to the selected and inputted display block are displayed in a larger area than the display block It is executed in parallel with the second display step and the second display step until the second display step is completed. And a display position of said display blocks unselected is sequentially changed in, characterized in that to execute a third display step of displaying a region other than the display region by the second display step.

  ADVANTAGE OF THE INVENTION According to this invention, it becomes possible to make a user confirm that the system is operating normally, while switching to the screen which displays the status information of the apparatus of control object in detail.

It is a figure which shows typically the structure of the monitoring system which concerns on Embodiment 1 of this invention. It is a block diagram which shows the structure of the operator station which is a display apparatus which concerns on Embodiment 1 of this invention. It is a flowchart which shows the outline | summary of a process of the display method which the display apparatus which concerns on Embodiment 1 of this invention performs. It is a figure which shows the example of a display of a group display screen. It is a figure which shows the example of a display of an instrument diagram window. It is a figure which shows the example of a display of a loop display screen. It is a flowchart which shows the outline | summary of the animation display process which the operator station which is a display apparatus which concerns on Embodiment 1 of this invention performs. It is a figure which shows typically the setting of the minimized window display position which an animation display screen production | generation part performs. It is a figure which shows the example of a display (1st example) of an animation display screen. It is a figure which shows the example of a display (2nd example) of an animation display screen. It is a figure which shows the example of a display (1st example) of a synthetic | combination screen. It is a figure which shows the example of a display of a synthetic | combination screen (2nd example). It is a figure which shows the example of a display of a minimization window. It is a figure which shows the example of a display at the time of returning to the state which displays a group display screen from the state which is displaying the loop display screen. It is a figure which shows the example of a display of the animation screen when another instrument diagram window is selected during displaying the loop display screen. It is a figure which shows the example of a display of the animation display screen which concerns on the modification 1 of Embodiment 1 of this invention. It is a figure which shows the example of a display of the synthetic | combination screen which concerns on the modification 2 of Embodiment 1 of this invention. It is a figure which shows the example of a display of the synthetic | combination screen which concerns on the modification 3 of Embodiment 1 of this invention. It is a figure which shows the example of a display of the synthetic | combination screen which concerns on the modification 4 of Embodiment 1 of this invention. It is a figure which shows the example of a display of the synthetic | combination screen which concerns on the modification 5 of Embodiment 1 of this invention. It is a figure which shows the example of a display of the synthetic | combination screen which concerns on the modification 6 of Embodiment 1 of this invention. It is a figure which shows the example of a display of a synthetic | combination screen when an instrument diagram window is selected as a display object of a loop display screen on the synthetic | combination screen shown in FIG. 21, and a corresponding loop display screen is produced | generated and displayed. It is a flowchart which shows the outline | summary of the animation display process which the operator station which is a display apparatus which concerns on Embodiment 2 of this invention performs. It is a flowchart which shows the outline | summary of the animation display process which the operator station which is a display apparatus which concerns on Embodiment 2 of this invention performs. It is a block diagram which shows the structure of the operator station which is a display apparatus which concerns on Embodiment 3 of this invention. It is a flowchart which shows the outline | summary of the animation display process which the operator station which is a display apparatus which concerns on Embodiment 3 of this invention performs. It is a figure which shows the outline | summary of the display at the time of returning to a loop display screen from a synthetic | combination screen in other embodiment of this invention. It is a figure which shows the example of a display of the animation display screen which concerns on other embodiment of this invention. It is a figure which shows the example of a screen transition of the animation display screen which concerns on other embodiment of this invention.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention (hereinafter referred to as “embodiments”) will be described with reference to the accompanying drawings.

(Embodiment 1)
FIG. 1 is a diagram schematically showing a configuration of a monitoring system according to Embodiment 1 of the present invention. A monitoring system 1 shown in the figure is a distributed control system (DCS) that performs control and monitoring of processes performed in a plant P such as a steel plant, a chemical plant, or a power plant. The monitoring system 1 includes a plurality of control devices 2 (only two control devices 2 are shown in FIG. 1), an operator station 3, a database station 4, and a printer 5.

  The plurality of control devices 2, the operator station 3, and the database station 4 are connected via a control network 6 so that they can communicate with each other. The operator station 3, the database station 4, and the printer 5 are connected via an information network 7 so that they can communicate with each other. Each of the control network 6 and the information network 7 is configured by a communication network appropriately combining, for example, a local area network (LAN), a wide area network (WAN), an intranet, a public line network, a dedicated line network, and the like.

  The control device 2 is connected to a measurement device such as a sensor connected to various devices (only two devices P1 and P2 are shown in FIG. 1) installed in the plant P in order to execute the process of the plant P. The control device 2 includes a CPU (Central Processing Unit), and controls various devices by performing calculations based on measurement results of the measurement device. An example of the control method performed by the control device 2 is PID (Proportional Integral Derivative) control.

  The control device 2 has information related to an internal instrument for controlling the process based on the measurement result of the measurement device described above. Examples of such internal instruments include a PID control instrument, a switch (on / off) instrument, a power factor instrument, and a wind direction instrument.

  The control device 2 periodically transmits the information of the internal instrument to the operator station 3 via the control network 6 as status information indicating the status of various devices to be controlled. The state information includes various setting values, information indicating an abnormality (alarm), TAG information for identifying an internal instrument, and the like in addition to the measurement result of the measuring device.

  The control device 2 performs processing such as changing various setting values based on an instruction signal sent from the operator station 3 via the control network 6.

  FIG. 2 is a block diagram showing the configuration of the operator station 3. An operator station 3 shown in the figure is a device for a user (an operator such as a plant manager) to check the operating state of the plant P, and functions as a display device according to the present invention. The operator station 3 includes an input unit 31, a first communication unit 32, a second communication unit 33, a display unit 34, an image processing unit 35, a control unit 36, and a storage unit 37.

The input unit 31 is configured using a pointing device such as a keyboard and a mouse, and accepts input of various operation instruction signals by the user. As a pointing device that constitutes the input unit 31, a touch panel that is provided on the display screen of the display unit 34 may be applied.
The first communication unit 32 transmits and receives various data to and from the plurality of control devices 2 via the control network 6 under the control of the control unit 36. Information received from the control device 2 by the first communication unit 32 is stored and stored in the storage unit 37.
The second communication unit 33 transmits / receives various data to / from the database station 4 and the printer 5 through the information network 7 under the control of the control unit 36.
The display unit 34 is configured using a display such as liquid crystal or organic EL (Electro Luminescence), and displays various types of information under the control of the control unit 36.

  The image processing unit 35 includes a group display screen generation unit 351 (first screen generation unit), a loop display screen generation unit 352 (second screen generation unit), and an animation display screen generation unit 353 (third screen generation unit). And a composite screen generation unit 354. The image processing unit 35 is realized using a CPU, various arithmetic circuits, and the like.

  The group display screen generation unit 351 displays an instrument diagram window (display block) indicating the operation state of the internal instrument and identification information for identifying the internal instrument for each internal instrument to be displayed (for each device corresponding to the internal instrument). The group display screen (first screen) data is generated by setting the display position on the display unit 34 (on the display screen) of the generated instrument diagram window. When the status information of the device corresponding to the internal instrument includes information indicating an abnormality, the group display screen generation unit 351 changes the display color of the frame of the corresponding instrument diagram window from that of other instrument diagram windows. Change to

  The loop display screen generation unit 352 generates loop display screen (second screen) data corresponding to one instrument diagram window selected in the group display screen.

  The animation display screen generation unit 353 includes a plurality of animation display screens (first display screens) as image groups that are displayed so as to move an instrument diagram window that has not been selected as a loop display screen generation target in the group display screen to a predetermined position. (3 screens) Generate data. The animation display screen generation unit 353 generates screen data that displays a minimized window obtained by minimizing an unselected instrument diagram window in a predetermined direction as screen data to be displayed last.

  The combined screen generation unit 354 combines a plurality of screen data. Specifically, the composite screen generation unit 354 generates screen data in which a loop display screen is superimposed on the animation display screen.

  The control unit 36 includes a display control unit 361 that controls display processing of the display unit 34, and a control parameter change unit 362 that changes process control control parameters performed by the control device 2 according to the input of the input unit 31. The control unit 36 is configured using a CPU, various arithmetic circuits, and the like, and performs instructions and data transfer corresponding to the respective units constituting the operator station 3 in response to various operation instruction signals received by the input unit 31. Thus, the operation of the operator station 3 is controlled in an integrated manner. The image processing unit 35 and the control unit 36 can be configured using a common CPU.

  The storage unit 37 includes a state information storage unit 371, a group display information storage unit 372, a loop display information storage unit 373, an animation display information storage unit 374, and a program storage unit 375.

  The state information storage unit 371 stores a plurality of pieces of state information that the first communication unit 32 periodically receives from the control device 2. The state information storage unit 371 updates information stored every time a plurality of pieces of state information are received under the control of the control unit 36, and transmits previous information to the database station 4 via the second communication unit 33. You may make it transmit.

  The group display information storage unit 372 stores information necessary for the group display screen generation unit 351 to generate group display screen data. Such information includes, for example, information on the display contents and display position of the instrument diagram window on the group display screen.

  The loop display information storage unit 373 stores information necessary for the loop display screen generation unit 352 to generate loop display screen data. As such information, for example, there is information on the display contents of the loop display screen set for each instrument diagram window.

  The animation display information storage unit 374 stores information necessary for the animation display screen generation unit 353 to generate animation display screen data. Such information includes, for example, information on the target position of the instrument map window when performing animation display, the distance to the target position, and the speed.

  The program storage unit 375 includes the display program according to the first embodiment, and stores various programs for operating the operator station 3, various data used during the execution of the various programs, and the like. The program stored in the program storage unit 375 can be recorded on a computer-readable recording medium. The program may be recorded on the recording unit or the recording medium when the computer or the recording medium is shipped as a product, or may be recorded by downloading via a communication network.

  The storage unit 37 includes a ROM (Read Only Memory) in which a display program according to the first embodiment, a program for starting a predetermined OS, and the like are installed in advance, and a RAM (Random) that stores calculation parameters, data, and the like of each process Access Memory) or the like. The various programs described above can also be obtained by downloading via a communication network. The communication network here is realized by, for example, an existing public line network, LAN, WAN, or the like, regardless of whether it is wired or wireless.

  The operator station 3 having the above configuration may be realized using a single computer or may be realized using a plurality of computers. In the latter case, it is also possible to perform processing in cooperation with each other while transmitting and receiving data via a communication network. In addition, the computer here can be comprised by a general purpose personal computer, a server, etc. When the operator station 3 is constructed by a client / server system including a plurality of computers via a communication network, the function of the input unit 31 and the display unit 34 is provided in the client terminal, while the image processing unit 35, the control The functions of the unit 36 and the storage unit 37 may be distributed to one or a plurality of servers.

  The database station 4 is a device for accumulating data transmitted from the control device 2 via the control network 6, and is a device for storing alarm history information and numerical trend information regarding the plant P over a long period of time. . The database station 4 also transmits and receives data to and from the operator station 3 via the information network 7.

  The printer 5 acquires and prints various data stored in the operator station 3 and the database station 4 based on the instruction signal of the operator station 3 transmitted via the information network 7.

  FIG. 3 is a flowchart showing an outline of processing of the display method executed by the display device according to the first embodiment. FIG. 3 shows an outline of processing when the operator station 3 selects the mode for displaying the internal instrument of the control device 2. In the following description, it is assumed that the internal instrument displayed by the display unit 34 has already been set.

  First, the group display screen generation unit 351 generates group display screen data that displays a part of the status information of the device corresponding to the internal instrument set as the display target (step S1). The group display screen generation unit 351 reads the latest state information received via the first communication unit 32 from the state information storage unit 371, generates information to be displayed for each internal instrument, and also displays the group display information storage unit 372. The group display information is read out from the above, and the display position on the display unit 34 of each internal instrument is set.

  Subsequently, the display control unit 361 causes the display unit 34 to display a group display screen corresponding to the group display screen data generated by the group display screen generation unit 351 (step S2).

  FIG. 4 is a diagram illustrating an example of a group display screen displayed by the display unit 34. In the group display screen 101 shown in the figure, ten instrument diagram windows W1 to W10 are tiled in 2 rows and 5 columns. In FIG. 4, the information displayed inside each instrument diagram window is omitted.

  In the first embodiment, it is assumed that the maximum number of instrument diagram windows that can be tiled at one time is 10 (2 rows and 5 columns). Therefore, in the case shown in FIG. 4, the maximum number of instrument diagram windows is displayed. In general, the group display screen can be set to display less than 10 instrument diagram windows. Each instrument diagram window in this case may be arranged so as not to overlap the ten positions shown in FIG.

  FIG. 5 is a diagram showing an example of specific display contents of the instrument diagram window. An instrument diagram window W1 shown in the figure is a PID control instrument. The instrument diagram window W1 is arranged at the top of the window to display a title for identifying an internal instrument ("PID control instrument 1" in FIG. 5), and at the bottom of the window is a tag TAG of the internal instrument. TAG number display area W12 for displaying numbers ("PID-0001" in FIG. 5), PV display area W13 for displaying measured values (PV: Process Variable), and SV for displaying set values (SV: Set Variable) The display area 14, the MV display area W15 for displaying an operation output value (MV: Manipulative Variable), and the control mode being set among the three control modes (R: remote, A: automatic, M: manual) can be identified. A control mode display area W16 to be displayed, and a graph display area W17 to display the PV value, the SV value and the like as a bar graph. An icon for changing a parameter such as a set value may be further displayed in the instrument diagram window W1.

  The internal instrument displayed in the instrument diagram window includes a PID control instrument, a switch (on / off) instrument, a power factor instrument, a wind direction instrument, and the like. The instrument diagram windows W2-W10 are any of these internal instruments.

  After step S2, when the input unit 31 receives selection input of one of the instrument diagram windows W1 to W10 (step S3: Yes), the operator station 3 details the internal instrument of the selected instrument diagram window. While the process (step S4) which produces | generates the loop display screen which displays information is performed, until the display part 34 displays a loop display screen, the process (step S5) by which the display part 34 displays an animation is performed.

  First, a process (step S4) in which the operator station 3 generates a loop display screen will be described. The loop display screen generation unit 352 generates loop display screen data of the selected instrument diagram window. The loop display screen generation unit 352 requests the control device 2 via the first communication unit 32 for information necessary for generating the loop display screen data. Thereafter, the loop display screen generation unit 352 refers to the information stored in the state information storage unit 371 and the loop display information storage unit 373 in addition to the information necessary for generation of the loop display screen data, thereby generating the loop display screen data. Generate.

  FIG. 6 is a diagram illustrating a display example of a loop display screen corresponding to the loop display screen data. The loop display screen L1 shown in the figure is a loop display screen when the instrument diagram window W2 for displaying the information of the PID control internal instrument is selected on the group display screen 101. The loop display screen L1 has an internal instrument information window L11 and an instrument diagram window L12 for displaying a corresponding instrument diagram window (corresponding to the instrument diagram window W2 in FIG. 4).

  The internal instrument information window L11 is arranged at the top and displays an identification information display area for displaying identification information including the TAG number ("PID-0002" in FIG. 6) and title ("PID control 2" in FIG. 6) of the internal instrument L111, status information display area L112 for displaying all information (all status information of devices corresponding to the internal instrument) that the internal instrument has, and the time change of the measured value, set value, and operation output value of the internal instrument And a trend display area L113 for displaying the trend as a graph.

  The state information display area L112 includes a measured value PV, a set value SV, an operation output value MV, a PV upper limit value PH, a PV lower limit value PL, an SV upper limit value SH, an SV lower limit value SL, an MV upper limit value MH, an MV lower limit value ML, All status information including deviation DV, deviation absolute value upper limit DH, proportional band P, integration time I, differentiation time D, sampling time DTI, filter time constant TF, and the like are displayed.

In the trend display area L113, the trends of the measured value PV, the set value SV, and the operation output value MV are displayed as graphs T _P , T _S , and T _M , respectively. In FIG. 7, the three graphs are displayed with different line thicknesses.

  The instrument diagram window L12 has the same display content as the instrument diagram window W2, and is arranged in the lower right part of the loop display screen L1. The display size of the instrument diagram window L12 is not necessarily the same as the display size of the instrument diagram window W2. Further, the display position of the instrument diagram window L12 is not limited to the lower right part of the loop display screen L1.

  Next, the animation display process (step S6) executed by the operator station 3 will be described with reference to the flowchart shown in FIG.

  When the display unit 34 is not displaying the loop display screen (step S21: No), in other words, when the display unit 34 is displaying the group display screen, the animation display screen generation unit 353 is the animation display information storage unit. The minimized window display information is read from 374, and the minimized window display position is set as the arrival position in the animation display of the unselected instrument diagram window in step S3 (step S22).

  FIG. 8 is a diagram schematically illustrating the setting of the minimized window display position performed by the animation display screen generation unit 353. FIG. 8 illustrates a case where the minimized window display positions of the instrument diagram windows W1, W3 to W10 are set when the instrument diagram window W2 is selected while the group display screen 101 shown in FIG. 5 is displayed. In the display screen 201 shown in FIG. 8, the minimized window display area C is provided on the right side of the instrument diagram window group displayed as a tile. In the minimized window display area C, minimized window display positions C1 to C9 for minimizing an unselected instrument diagram window and displaying only the TAG number are arranged in a line from the top to the bottom of the screen. It has been.

  In the case illustrated in FIG. 8, the animation display screen generation unit 353 displays the minimized window display positions of the unselected instrument diagram windows W1 and W3 to W10 as row numbers and columns indicating the display positions of the instrument diagram windows on the group display screen 101. Set in order from the top with the smallest number sum. Specifically, the animation display screen generation unit 353 displays the display position of the instrument diagram window W1 (row number 1, column number 1) having the smallest sum of the row number and the column number as the uppermost minimized window display position. Set to C1. The animation display screen generation unit 353 sets the display position of the instrument diagram window W3 (row number 1, column number 3) having the second smallest sum of the row number and the column number as the minimized window display position C2. Similarly, the animation display screen generation unit 353 sets the display position of the instrument diagram window Wn (n = 4, 5,..., 10) to the minimized window display position Cn−1.

Subsequently, the animation display screen generation unit 353 calculates the moving speed of the unselected instrument diagram window Wj (j = 1, 3, 4,..., 10) on the animation screen (step S23). In the first embodiment, the animation display screen generation unit 353 moves the unselected instrument diagram window Wj at the same speed starting from the display position on the group display screen at the same time, and minimizes the window display positions C1 to C9. Set the movement speed (speed and direction of movement) to arrive at the same time. The moving direction and moving amount of the instrument diagram window Wj are each schematically represented by the direction and magnitude of the vector M _j shown in FIG. For this reason, the ratio of the magnitude (speed) of the moving speed of the instrument diagram window Wj is equal to the ratio of the magnitudes of the vectors M _j .

  Here, the animation display screen generation unit 353 sets the moving speed of the instrument diagram window Wj based on the time required to display the loop display screen. Specifically, the animation display screen generation unit 353 reads the required generation time set in advance as the maximum time required for generating the loop display screen from the loop display information storage unit 373, and this required generation time becomes the movement time. Set the movement speed of the instrument window.

  Thereafter, the animation display screen generation unit 353 initializes the animation display time t to 0 (step S24), and proceeds to step S25. In the following processing, the elapsed time t from the first display is adopted as a parameter for giving the display order of the animation display screen. In addition, for example, the cumulative number from the first display is used as a parameter (counter). It is also possible to execute processing.

  In step S25, the animation display screen generation unit 353 generates animation display screen data at time t based on an unselected instrument diagram window Wj (step S25). Specifically, the animation display screen generating unit 353 calculates the position of the instrument diagram window Wj at the time t based on the moving speed for each instrument diagram window Wj calculated in step S25, and the instrument diagram window Wj at this position. Generate the screen data that arranges. When there is an overlap between the adjacent instrument diagram windows in the instrument diagram window Wj, the animation display screen generation unit 353 superimposes the right window so that it is positioned on the upper side.

  The animation display screen generation unit 353 uses the display contents of the instrument diagram window Wj as the display contents when the instrument diagram window for performing loop display is selected in step S3. This eliminates the need for the animation display screen generation unit 353 to refer to the latest state information in the state information storage unit 371 each time it is generated. Therefore, it is possible to realize a high-speed animation display screen data generation process.

  Thereafter, the display control unit 361 determines whether or not the generation of the loop display screen data by the loop display screen generation unit 352 has been completed (step S26). The display control unit 361 determines whether or not the generation of the loop display screen data is completed by checking whether or not the loop display screen data exists in a predetermined data storage area in the storage unit 37, for example. When the display control unit 361 determines that the generation of the loop display screen data has been completed (step S26: Yes), the operator station 3 ends the animation display process. On the other hand, when the display control unit 361 determines that the generation of the loop display screen data has not been completed (step S26: No), the display control unit 361 displays the animation display screen generated in step S25 on the display unit 34. It is displayed (step S27).

After step S27, the animation display screen generation unit 353 determines whether or not the time t is the maximum value _tmax . If t < _tmax is satisfied (step S28: No), the value of the time t is set. Then, the change amount Δt corresponding to the display interval is increased (step S29), and the process returns to step S25. On the other hand, when the time t is equal to t _max (step S28: Yes), the operator station 3 ends the animation display process. In the first embodiment, when the time t is t _max , the animation display screen generation unit 353 arranges the instrument diagram window Wj at any one of the predetermined minimized window display positions C1 to C10 and displays only the title. Generate minimized window display screen data.

9 and 10 are diagrams showing display examples of the animation display screen of the display unit 34 at different times t, and FIG. 9 shows a display example of the animation display screen at an earlier time. 9 and 10, the moving speed of the instrument diagram window Wj is indicated by a vector V _j , but this vector V _j is not actually displayed. As is clear from the animation display screens 301 and 302 shown in FIG. 9 and FIG. 10, respectively, the instrument map window located on the left side has a higher speed of movement. It catches up with the adjacent instrument window on the right side and overlaps. For example, in FIG. 9, the instrument diagram window W6 has caught up and overlapped with the adjacent instrument diagram window W7 on the right side. In addition, the instrument diagram windows Wj come closer to each other over time, and the overlapping method becomes complicated.

  In addition, about the rule of how to overlap when adjacent instrument diagram windows overlap, in this Embodiment 1, it has set so that it may be displayed so that the right instrument diagram window may come up, but this Is merely an example, and may be displayed so that the left instrument diagram window is on top. Further, the method of overlapping adjacent instrument diagram windows may be set by the user inputting from the input unit 31.

  In the first embodiment, the display contents when the instrument diagram window is moved are the display contents when the instrument diagram window for performing loop display is selected in step S3. However, when further speedup is required. May omit the inside of the instrument diagram window and move only the frame of the instrument diagram window in the display mode as shown in FIG. Also, when the real-time display is more important than the speed of the animation display screen data generation process, the animation display screen generation unit 353 always displays the animation from the state information storage unit 371 by referring to the latest state information situation. Screen data may be generated.

  Next, the case where the display unit 34 is displaying the loop display screen in step S21 (step S21: Yes) will be described. In this case, first, the animation display screen generation unit 353 reads the minimized window display information from the animation display information storage unit 374, and resets the minimized window display position of the unselected instrument diagram window (step S30). Minimized window display screen data is generated (step S31).

  Subsequently, the display control unit 361 causes the display unit 34 to display a minimized window display screen corresponding to the minimized window screen data generated by the animation display screen generating unit 353 (step S32).

  Thereafter, the animation display screen generation unit 353 initializes the animation display time t to 0 (step S33), and proceeds to step S34.

  In step S34, the animation display screen generation unit 353 generates animation display screen data of time t by the selected instrument diagram window (step S34). Specifically, the animation display screen generation unit 353 generates data at the time t of the animation display screen such that the selected instrument diagram window moves in the screen at a constant speed as time elapses (this For a specific display example, refer to the description of FIG.

  Subsequently, the display control unit 361 determines whether or not the generation of the loop display screen data by the loop display screen generation unit 352 has been completed as in the above-described step S26 (step S35). When the display control unit 361 determines that the generation of the loop display screen data has been completed (step S35: Yes), the operator station 3 ends the animation display process. On the other hand, when the display control unit 361 determines that the generation of the loop display screen data has not been completed (step S35: No), the display control unit 361 displays the animation display screen data generated in step S25 as the display unit 34. (Step S36).

After step S36, the animation display screen generation unit 353 determines whether the time t is the maximum value _tmax . As a result of the determination, if t <t _max (step S37: No), the animation display screen generation unit 353 increases the value of time t by a change amount Δt corresponding to the display interval (step S38), and proceeds to step S34. Return. On the other hand, when the time t is equal to t _max (step S37: Yes), the operator station 3 ends the animation display process.

  Processing following the parallel processing of steps S4 and S5 described above will be described. First, the composite screen generation unit 354 generates composite screen data by superimposing loop display screen data and animation display screen data (step S6). Here, the composite screen generation unit 354 superimposes the loop display screen on the animation display screen. Thereafter, the display control unit 361 displays a composite image corresponding to the generated composite screen data on the display unit 34 (step S7).

  FIG. 11 is a diagram illustrating a display example of a composite screen displayed by the display unit 34. The composite screen 401 shown in the figure shows a display example when the generation of the loop display screen data is completed immediately after the animation display screen 302 shown in FIG. 10 is displayed. In the composite screen 401, the loop display screen L1 is displayed superimposed on the animation display screen.

Thereafter, the animation display screen generation unit 353 determines whether the time t is the maximum value t _max (step S8). As a result of the determination, if t = t _max (step S8: Yes), the process proceeds to step S9. FIG. 12 is a diagram illustrating a display example of a composite screen displayed by the display unit 34 when t = t _max . The composite screen 402 shown in the figure displays a minimized window display screen WC1 on the right side of the loop display screen L1. The minimized window display screen WC1 is a screen that displays a minimized window Wjt obtained by minimizing the measuring instrument window Wj (j = 1, 3,..., 10) in a predetermined minimized window display area. In the minimized window Wjt, as shown in FIG. 13, the TAG number of each instrument diagram window is displayed. Instead of displaying the TAG number in the minimized window Wjt, the title of each instrument diagram window may be displayed.

  In step S9, when the input unit 31 receives an input of an instruction signal to return to the group display screen (step S9: Yes), the operator station 3 returns to step S1. The instruction signal for returning to the group display screen may be input, for example, when the user double-clicks the identification information display area L111 of the loop display screen L1 shown in FIG. The instruction signal for returning to the group display screen displays an icon for performing an operation for returning to the group screen (for example, an icon described as “return”) on the composite screen 402, and the user operates the mouse to operate this icon. Then, the pointer may be set to the icon and a mouse may be clicked to select and input later.

  FIG. 14 is a diagram illustrating a display example on the display unit 34 when the loop display screen is displayed and the group display screen is displayed again. The group display screen 102 shown in the figure displays the outline of the instrument diagram window (in the instrument diagram window W2 in FIG. 15) that has been loop displayed immediately before, with a thick frame. By performing such display, it is possible to cause the user to accurately recognize the instrument diagram window that has been loop-displayed immediately before.

  Note that the method of clearly showing the instrument diagram window that was displayed in a loop immediately before is not limited to this. For example, the frame color of the instrument diagram window displayed in a loop may be displayed in a different color from the other instrument diagram windows, or the instrument diagram window displayed in a loop may be indicated by an arrow or the like. . Further, not only the instrument diagram window that was displayed in a loop immediately before, but also the instrument diagram window that was displayed in a loop before that may be displayed in a manner in which the display order can be recognized.

  A case where the input unit 31 does not accept the input of the instruction signal for returning to the group display screen in step S9 (step S9: No) will be described. In this case, when the input unit 31 receives an input of an instruction signal for ending the display mode of the internal instrument (step S10: Yes), the operator station 3 ends a series of processes. On the other hand, when the input unit 31 does not accept the input of the instruction signal for ending the display mode of the internal instrument in step S10 (step S10: No), the operator station 3 returns to step S3.

Next, the case where the animation display screen generation unit 353 determines in step S8 that t <t _max with respect to time t (step S8: No) will be described. In this case, the animation display screen generation unit 353 increases the value of time t by the change amount Δt (step S11), and proceeds to step S12.

  In step S12, the animation display screen generation unit 353 determines whether or not the minimized window display screen is displayed on the currently displayed screen (step S12). When the minimized window display screen is not displayed (step S12: No), the animation display screen generation unit 353 generates an animation display screen at time t by the unselected instrument diagram window Wj (step S13). This process is the same as the process of step S25 of FIG. Thereafter, the operator station 3 returns to step S6.

  On the other hand, when the minimized window display screen is displayed (step S12: Yes), the animation display screen generation unit 353 generates animation display screen data of time t by the selected instrument diagram window (step S14). This process is the same as the process of step S34 in FIG. Thereafter, the operator station 3 returns to step S6.

  FIG. 15 is a diagram illustrating a display example of an animation screen when another instrument diagram window is selected while the loop display screen is displayed. The animation display screen 303 shown in the figure shows a display example when the minimized window W8t is selected on the composite screen 402 shown in FIG. On the animation display screen 303, a new minimized window display screen WC2 is displayed. In the minimized window display screen WC2, a minimized window W2t corresponding to the instrument diagram window W2 is displayed at the second minimized window display position C2 from the top, and the selected minimized window W8t is not displayed.

  In the case shown in FIG. 15, the instrument diagram window W8 corresponding to the selected minimized window W8t is displayed so as to gradually appear while ascending from the lower left part of the minimized window display screen WC2. . In this sense, FIG. 15 schematically shows the time change of the display position of the instrument diagram window W8, and does not show the display mode of a specific time. Note that the time change in the display position of the instrument diagram window W8 shown in FIG. 15 is merely an example, and it can be set to move in an arbitrary direction from an arbitrary position in the screen.

  According to the first embodiment of the present invention described above, the animation display for moving the unselected group display screen to the minimized window display position at the same speed while switching from the group display screen to the loop display screen is performed. Can visually confirm that the system is operating normally.

  Further, according to the first embodiment, since the moving speed of the unselected instrument diagram window is set in consideration of the generation time of the loop display screen, animation display is performed until the loop display screen is generated. You can continue to display the screen. As a result, the user can wait for the display of the loop display screen with peace of mind.

  As a response to the case where an unselected instrument diagram window reaches the minimized window display area before the loop display screen is displayed, the unselected instrument diagram window is displayed again from the initial position of the animation display. The display program may be set so as to be moved, or the display program may be set so as to return from the minimized window display area to the initial position.

(Modification of Embodiment 1)
FIG. 16 is a diagram illustrating a display example of an animation display screen according to the first modification of the first embodiment. In the animation display screen 304 shown in the figure, the minimized window Wjt (j = 1, 3,..., 10) moves toward the minimized window display area C from the beginning. Even if such a display method is adopted, the same effect as in the first embodiment can be obtained.

  FIG. 17 is a diagram illustrating a display example of a composite screen according to the second modification of the first embodiment. The minimized window display screen WC3 constituting a part of the composite screen 403 shown in the figure has a minimized window display area corresponding to the instrument diagram window and 1: 1 on the group display screen. In this case, on the minimized window display screen WC3, the minimized window display area corresponding to the measuring instrument window selected as the loop display screen is displayed blank. FIG. 17 shows a case where the instrument diagram window W2 is selected as a loop display screen creation target on the group display screen 101. In this case, on the minimized window display screen WC3, the second minimized window display area from the top is displayed as the blank area B2. In FIG. 17, the blank area B2 is painted black, but nothing may be displayed in this area.

  FIG. 18 is a diagram illustrating a display example of a composite screen according to the third modification of the first embodiment. In the composite screen 404 shown in the figure, a minimized window display screen WC1 is displayed on the left side of the loop display screen L1.

  FIG. 19 is a diagram illustrating a display example of a composite screen according to the fourth modification of the first embodiment. In the composite screen 405 shown in the figure, a minimized window display screen WC4 is displayed above the loop display screen L2. On the minimized window display screen WC4, the minimized window of the measuring instrument window in which the sum of the row number and the column number on the group display screen is small is displayed in order from the left. In the minimized window Wjt ′ (j = 1, 3 to 10), the TAG number or title is displayed in vertical writing, for example. Similarly to the loop display screen L1, the loop display screen L2 has an internal instrument information window L21 and an instrument diagram window L22 for displaying a corresponding instrument diagram window (the instrument diagram window W2 in FIG. 19).

  FIG. 20 is a diagram illustrating a display example of a composite screen according to the fifth modification of the first embodiment. In the composite screen 406 shown in the figure, the minimized window Wjt ′ (j = 1, 3 to 10) is displayed on the minimized window display screen WC5 in the same arrangement as the group display screen, and the selected instrument window is displayed. The minimized window display area (blank area B2 ′) corresponding to W2 is displayed blank.

  Note that it may be possible for the user to select and input via the input unit 31 which display method to use among the composite screens 402 to 406.

  FIG. 21 is a diagram illustrating a display example of a composite screen according to the sixth modification of the first embodiment. The composite screen 407 shown in the figure is different from the first embodiment described above in the display mode of the loop display screen L3. Specifically, on the loop display screen L3, in addition to the instrument diagram window L32 corresponding to the selected instrument diagram window, instrument diagram windows L33 to L35 related to the instrument diagram window L32 are displayed side by side in the vertical and horizontal directions. The related instrument diagram windows L33 to L35 can be arbitrarily set, and may be, for example, an instrument diagram window related to an internal instrument of the same type as the instrument diagram window L32, or another internal instrument of the same control target as the instrument diagram window L32. . The instrument diagram windows L33 to L35 may be displayed on the group display screen, or may not be displayed on the group display screen. Among the plurality of instrument diagram windows L32 to L35, the selected instrument diagram window L32 is displayed with a thicker frame than the other instrument diagram windows L33 to L35 so that it can be distinguished from the other instrument diagram windows L32 to L35. Yes. It is also possible to display the frame color of the instrument diagram window L32 in a color different from that of the other instrument diagram windows L33 to L35.

  FIG. 22 is a diagram showing a display example of the composite screen when the instrument view window L35 is selected as the display target of the loop display screen on the composite screen 407 shown in FIG. 21, and the corresponding loop display screen is generated and displayed. . In the composition screen 408 shown in the figure, the selected instrument diagram window L35 is displayed with a thick frame, and the instrument diagram window L32 selected immediately before is displayed with a thin frame. In the internal instrument information window L31 ', information corresponding to the instrument diagram window L35 is displayed. It is also possible to display the thickness and color of the frame in a manner different from any of L33 to L35 so that it can be identified that the instrument diagram window L32 has been displayed as a loop immediately before.

  During the transition from the composite screen 407 to the composite screen 408, the display unit 34 gradually raises the instrument diagram window L35 from the lower left part of the minimized window display screen WC1, similarly to the animation display screen 303 illustrated in FIG. Animated display is performed. Thereby, the user can confirm that the system is operating normally even when the instrument diagram is changed in the same loop display screen L3.

  Needless to say, the first to sixth modifications of the first embodiment described above have the same effects as those of the first embodiment.

(Embodiment 2)
The second embodiment of the present invention is characterized in that animation display is performed during generation of a loop display screen, while minimizing window display screens are simultaneously displayed in parallel when the loop display screen is displayed. To do. The display device according to the second embodiment has the same configuration as the operator station 3 described in the first embodiment, and forms a part of the monitoring system 1.

  FIG. 23 is a flowchart showing an outline of processing executed by the operator station 3. In FIG. 23, the processing of steps S41 to S44 sequentially corresponds to the processing of steps S1 to S4 of FIG.

  The animation display process in step S45 will be described with reference to the flowchart in FIG. First, the case where the display unit 34 is not displaying the loop display screen (step S51: No) will be described. In this case, the processes in steps S52 to S55 correspond to the processes in steps S22 to S25 in FIG.

In step S56, the display control unit 361 determines whether or not the generation of loop display screen data by the loop display screen generation unit 352 has been completed (step S56). When the display control unit 361 determines that the generation of the loop display screen data has been completed (step S56: Yes), the animation display screen generation unit 353 displays the minimized window display screen data (animation of time t = t _max ). (Corresponding to display screen data) is generated (step S57). Thereafter, the operator station 3 ends the animation display process. On the other hand, when the display control unit 361 determines that the generation of the loop display screen data has not been completed (step S56: No), the display control unit 361 displays the animation display screen data generated in step S55 as the display unit 34. (Step S58).

  The processes in steps S59 to S60 following step S58 sequentially correspond to the processes in steps S28 to S29 in FIG.

  Next, the case where the display unit 34 is displaying the loop display screen (step S51: Yes) will be described. In this case, the processing in steps S61 to S69 executed by the operator station 3 sequentially corresponds to the processing in steps S30 to S38 in FIG.

  After the parallel processing of steps S44 and S45 described above, the composite screen generation unit 354 generates composite screen data using the loop display screen data and the minimized window display screen data (step S46). Thereafter, the display control unit 361 displays a composite image corresponding to the generated composite screen data on the display unit 34 (step S47).

  The processes in steps S48 to S49 subsequent to step S47 sequentially correspond to the processes in steps S9 to S10 in FIG.

  In the second embodiment, when the loop display screen generation unit 352 completes the generation of the loop display screen data and displays it, the unselected instrument diagram window is a minimized window display screen whose display order in animation display is the last. Composite display. Therefore, in the second embodiment, when the display of the loop display screen is started, the composite screen 402 shown in FIG. 12 is displayed.

  According to the second embodiment of the present invention described above, since the animation display for moving the unselected group display screen to the minimized window display position at a constant speed while switching from the group display screen to the loop display screen, Can visually confirm that the system is operating normally.

  Further, according to the second embodiment, when displaying the loop display screen, the unselected instrument diagram window is displayed on the minimized window display screen, so that the animation display process can be minimized. Therefore, according to the second embodiment, it is possible to reduce the processing load related to the animation display process.

(Embodiment 3)
FIG. 25 is a block diagram showing a configuration of an operator station which is a display device according to Embodiment 3 of the present invention. The operator station 8 shown in the figure has the same configuration as the operator station 3 described in the first embodiment except for the configuration of the control unit 81 (see FIG. 2). Further, the operator station 8 forms part of the monitoring system according to the third embodiment. The monitoring system according to the third embodiment has the same configuration as that of the monitoring system 1 according to the first embodiment except for the operator station. Hereinafter, the same components as those of the monitoring system 1 will be described with the same reference numerals as those in FIG.

  The control unit 81 includes a display control unit 361, a control parameter change unit 362, and an animation display setting unit 811. When performing animation display during loop display screen generation, the animation display setting unit 811 adjusts the speed of the instrument diagram window according to the generation status of the loop display screen.

  When the loop display screen generation unit 352 generates loop display screen data, in addition to the state information periodically transmitted from the control device 2, there is information to request transmission to the control device 2, and this processing is performed as a group display. This is the main cause of the time required for switching from the screen to the loop display screen. The loop display screen generation unit 352 completes the generation of the loop display screen data after all the information necessary for generating the loop display screen data is accumulated in the state information storage unit 371.

  The loop display screen generation data differs depending on the internal instrument to be displayed, and the assumed data amount and data acquisition time are also different. For this reason, in the third embodiment, the loop display information storage unit 373 has a data storage amount (data acquisition amount) for each time of loop display screen generation data corresponding to the internal instrument and an estimated value of the time required for data acquisition. Is remembered.

  The animation display setting unit 811 refers to the data storage amount and the estimated value of the data acquisition time for each display screen generation data stored in the loop display information storage unit 373 and the state information stored in the state information storage unit 371. The amount of data stored at the time of comparison can be quantitatively compared by comparing the data storage amount acquired as data for loop display screen generation during animation display with the estimated value of the data storage amount for each time. Understand and set the animation display to reflect the result.

  Specifically, when the data accumulation amount at the time of comparison is smaller than the assumed value, the animation display setting unit 811 reduces the moving speed of the instrument diagram window in the subsequent animation display and displays the animation. Control to lengthen. Similarly, when the data accumulation amount at the time of comparison is larger than the assumed value, the animation display setting unit 811 increases the moving speed of the instrument diagram window in the subsequent animation display to shorten the animation display time. Take control.

  The outline of the process executed by the operator station 3 according to the third embodiment is the same as the flowchart shown in FIG. 3, but the contents of the animation display process (step S5) are different. The outline of the animation display process will be described below with reference to the flowchart shown in FIG.

  First, the case where the display unit 34 is not displaying the loop display screen (step S71: No) will be described. In this case, the processes in steps S72 to S77 sequentially correspond to the processes in steps S22 to S27 in FIG.

  After step S77, the animation display setting unit 811 refers to the state information storage unit 371 and the loop display information storage unit 373, confirms the accumulation status of the loop display screen generation data, and moves the instrument diagram window for animation display. It is determined whether or not a speed change is necessary (step S78).

  When the animation display setting unit 811 determines that it is necessary to change the moving speed of the instrument diagram window to be displayed (step S79: Yes), the moving speed is changed according to the data accumulation amount (step S80). For example, when the data accumulation amount at the time of determination is x% (0 <x <100) less than the assumed value, the animation display setting unit 811 sets the moving speed of the target instrument diagram window to x from the set value. Set a smaller value.

  When the animation display setting unit 811 determines that it is necessary to change the moving speed of the instrument diagram window to be displayed (step S79: No), the operator station 3 proceeds to step S81. The processes in steps S81 to S82 sequentially correspond to the processes in steps S28 to S29 in FIG.

  Next, the case where the display unit 34 is displaying the loop display screen in step S71 (step S71: Yes) will be described. In this case, the processes in steps S83 to S89 sequentially correspond to the processes in steps S30 to S36 in FIG.

  The processing of steps S90 to S94 is substantially the same as the processing of steps S76 to S82 described above. However, the moving speed changed in step S92 is the moving speed in the animation display of the selected instrument diagram window. Further, after step S94, the operator station 3 returns to step S87.

  According to the third embodiment of the present invention described above, since the animation display for moving the unselected group display screen to the minimized window display position is performed while switching from the group display screen to the loop display screen, the user can It is possible to visually confirm that it is operating normally.

  Further, according to the third embodiment, since the control is performed to change the moving speed of the instrument diagram window on the animation display screen according to the generation status of the loop display screen, the user takes time until the loop display screen is displayed. Can be recognized more accurately.

  In the third embodiment, the process of confirming the acquisition status (accumulated amount) of loop display screen generation data need not be performed every time an animation display screen is generated, and may be performed at a predetermined timing. Good. As such a timing, for example, a timing every time a predetermined number of animation display screens are generated can be cited.

(Other embodiments)
Up to this point, the mode for carrying out the present invention has been described. However, the present invention should not be limited only to the above first to third embodiments. For example, when the transition is made from the composite screen 402 shown in FIG. 12 to the group display screen, the instrument diagram window W2 displayed on the loop display screen and the minimized window Wjt (j = 1, 3 to 10) may be displayed so as to return while moving to the display position of the group display screen. A display screen 202 shown in FIG. 27 is a diagram schematically showing a display mode of the instrument diagram window W2 and the minimization window Wjt at the start of animation display in this case, and a subsequent locus. The minimized window Wjt may be moved while being minimized until it returns to the display position of the group display screen, or displayed at the size of the original instrument drawing window Wj when it is away from the minimized window display area. You may make it move.

  In addition, when moving from the group display screen to the loop display screen, the magnitude (speed) of movement speed of the unselected instrument diagram window may be made uniform. FIG. 28 is a diagram showing a display example of the animation display screen in this case. In the animation display screen 305 shown in the figure, unselected instrument diagram windows Wj (j = 1, 3 to 10) are moving at the same speed. In FIG. 28, the same speed is schematically represented by the length of the same arrow, but the arrow is not displayed on the actual animation display screen 305. It is also possible to draw a curvilinear locus and reach the minimized window display position without making the movement direction of the instrument view window constant.

  Further, when transitioning from the group display screen to the loop display screen, the pseudo loop display screen may be displayed while being gradually enlarged. FIG. 29 is a diagram schematically illustrating a screen transition example displayed by the display unit 34 in this case, and is a diagram schematically illustrating a screen transition example until the composite screen 402 described in FIG. 12 is displayed. .

  The animation display screen 306 described at the top of FIG. 29 displays an instrument diagram window Wj (j = 1, 3 to 10) as in the first embodiment (see FIG. 9) and a pseudo loop display screen L4a. Is displayed. The pseudo loop display screen L4a has a pseudo internal instrument information window L41a and a pseudo instrument diagram window L42a. In the pseudo internal instrument information window L41a, for example, an internal instrument information window L11 shown in FIG. 6 that does not contain numerical values or trend information is displayed. In the pseudo instrument diagram window L42a, a screen when the selected instrument diagram window W2 is selected is reduced and displayed.

  Thereafter, as time elapses, the instrument diagram window Wj gradually moves to the right, and the pseudo loop display screen is gradually displayed larger. In the animation display screen 307 described in the center of FIG. 29, the pseudo loop display screen L4b is displayed larger than the pseudo loop display screen L4a of the animation display screen 306. The display contents of the pseudo internal instrument information window L41b and the pseudo instrument figure window L42b are the same as the display contents of the pseudo internal instrument information window L41a and the pseudo instrument figure window L42a, respectively.

  In this way, when the pseudo loop display screen becomes larger and the instrument diagram window Wj approaches the minimized window display area C and the generation of the loop display screen is completed, the composite screen 402 described at the bottom of FIG. 29 is displayed. Is displayed.

  Note that the loop display screen generation unit 352 may always generate the pseudo instrument diagram windows L42a and L42b by referring to the latest state information from the state information storage unit 371.

  In the above description, the animation display screen with the last display order in a plurality of series of animation display screens is the minimized window display screen. However, as the last animation display with the display order, for example, the title of the instrument diagram window or the TAG In addition to the numbers, it is also possible to display the instrument diagram window in a reduced size so as to include PV value, SV value, and MV value data.

In Embodiments 1 to 3 described above, the maximum value t _max of the time t for which the animation display screen generation unit 353 generates animation display screen data has been described as a predetermined value (fixed value), but is not limited thereto. Do not mean. For example, the actual time when the loop display screen is opened (when generated and displayed) can be used as the maximum value t _max . When using the real time, it can be realized by holding the real time when the loop display screen was last opened and substituting it into the maximum value t _max . This substitution may be performed each time or periodically. Alternatively, substitution may be performed only once when the system is activated, and the value may be stored in the animation display information storage unit 374 as the maximum value t _max . Further, the average value of the actual time when the loop display screen is opened may be set as the maximum value t _max which is the average of the most recent predetermined number of times.

In this way, if the maximum value t _max is automatically updated in real time when the screen is opened, a user interface that is appropriately adapted to the system can be provided. Therefore, the user load can be reduced.

The same applies to “the data accumulation amount (data acquisition amount) for each time of the loop display screen generation data corresponding to the internal instrument and the estimated time required for data acquisition” described in the third embodiment. A maximum value t _max can be set.

  The order of processing in the flowcharts described in this specification is merely an example, and can be changed within a consistent range when implementing the present invention.

  As is clear from the above description, the present invention can include various embodiments and the like not described herein. For example, in addition to the DCS described above, a monitoring system using a personal computer having a display function incorporating SCADA (Supervisory Control And Data Acquisition) software, or a monitoring system using a programmable control system including a programmable controller and a display unit The present invention can also be applied to this.

DESCRIPTION OF SYMBOLS 1 Monitoring system 2 Control apparatus 3, 8 Operator station 4 Database station 5 Printer 6 Control network 7 Information network 31 Input part 32 1st communication part 33 2nd communication part 34 Display part 35 Image processing part 36, 81 Control part 37 Storage part 101, 102 Group display screen 201, 202 Display screen 301, 302, 303, 304, 305, 306, 307 Animation display screen 351 Group display screen generation unit 352 Loop display screen generation unit 353 Animation display screen generation unit 354 Composite screen generation unit 361 Display control unit 362 Control parameter change unit 371 Status information storage unit 372 Group display information storage unit 373 Loop display information storage unit 374 Animation display information storage unit 375 Program storage unit 401 02, 403, 404, 405, 406, 407, 408 Composite screen 811 Animation display setting part B2 Blank area C Minimized window display area C1, C2, Cn-1 Minimized window display position L1, L2, L3 Loop display screen L21 , L31 Internal instrument information window L11 Internal instrument information window L111 Identification information display area L112 Status information display area L113 Trend display area L12, L22, L32, L33, L34, L35 Instrument diagram window L41a, L41b Pseudo internal instrument information window L42a, L42b Pseudo-instrument diagram window L4a, L4b Pseudo-loop display screen P Plant W1-W10 Instrument diagram window W11 Title display area W12 TAG number display area W1t, ~ W10t Minimization window WC 1 to WC5 Minimized window display screen

Claims (15)

A display device that is connected to a control device connected to a plurality of devices installed in a plant in a communicable manner, acquires and displays a plurality of state information respectively indicating the states of the plurality of devices from the control device,
A display unit capable of displaying the plurality of status information;
A first screen generating unit that generates data of a display block for displaying a part of the state information for each device, and generates data of a first screen having the plurality of generated display blocks;
An input unit that receives a selection input of the display block that displays the state information of the device corresponding to the display block in a larger area than the display block among the plurality of display blocks of the first screen;
A second screen generating unit for generating data of a second screen for displaying the status information of the device corresponding to the display block selected and input;
A third screen generating unit that generates data of one or more third screens to be displayed by sequentially changing display positions in the display unit of the display blocks that are not selected in the selection input;
Display for sequentially displaying the one or more third screens generated by the third screen generation unit on the display unit until at least the second screen generated by the second screen generation unit is displayed on the display unit A control unit;
A display device comprising: The one or more third screens are:
The display device according to claim 1, wherein when the display unit sequentially displays, the unselected display block is an image group that appears to move to a predetermined arrival position of the display unit. The one or more third screens are:
The display device according to claim 2, wherein when there are a plurality of the unselected display blocks, the display device is an image group that appears to arrive at the arrival position set for each display block at the same timing. The third screen generator is
The speed at which the unselected display block moves on the display unit is set based on a distance to the arrival position of the display block and a display time of the one or more third screens. 2. The display device according to 2.   The display device according to claim 4, wherein a display time of the one or more third screens is longer than a maximum time required for the second screen generation unit to generate data of the second screen.   The display time of the one or more third screens is determined based on an actual time required until the second screen is generated and displayed before the display is performed. Display device.   While the display control unit is sequentially displaying the one or more third screens on the display unit, an accumulation amount of data necessary for the second screen generation unit to generate data of the second screen Is detected at a predetermined timing, and a third screen display setting for setting the display mode of the third screen after the timing is performed by comparing the detected value with the accumulated amount of data assumed at the timing. The display device according to claim 2, further comprising a unit.   2. The display device according to claim 1, wherein among the one or more third screens, a third screen that is last in the display order on the display unit is displayed by reducing and displaying the unselected display blocks. A composite screen generating unit that generates a composite screen by combining the second screen and the third screen not displayed on the display unit among the one or more third screens;
The display control unit
The display device according to claim 1, wherein the composite screen is displayed on the display unit after the second screen is generated. The composite screen generation unit
The display device according to claim 9, wherein the composite screen is generated by superimposing the second screen on the third screen. The composite screen generation unit
10. The display device according to claim 9, wherein the second screen and the third screen having the last display order on the display unit among the one or more third screens are combined. When the input unit receives selection input of the display block for displaying the second screen while the display unit is displaying the second screen,
The second screen generator is
Generating new data of the second screen corresponding to the selected display block;
The third screen generator is
Generating one or more third screen data to be displayed by changing the display position of the selected display block;
The display control unit
The display unit sequentially displays the one or more newly generated third screens until at least the second screen newly generated by the second screen generation unit is displayed on the display unit. The display device according to claim 1. A control device connected to a plurality of devices installed in the plant;
The display device according to claim 1, communicatively connected to the control device;
A monitoring system characterized by comprising: A display method performed by a display device that is communicably connected to a control device connected to a plurality of devices installed in a plant, and that acquires and displays a plurality of state information respectively indicating the states of the plurality of devices from the control device. Because
A first display step of generating display block data for displaying a part of the state information for each device, and displaying the generated plurality of display blocks;
An input step for receiving a selection input of one of the plurality of displayed display blocks;
A second display step of displaying the state information of the device corresponding to the display block selected and input in a larger area than the display block;
The second display step is executed in parallel with the second display step and the display positions of the display blocks that are not selected in the selection input are sequentially changed until the second display step is completed. A third display step for displaying in an area other than the display area by the step;
A display method comprising: A display device that is connected to a control device connected to a plurality of devices installed in a plant so as to be communicable and obtains and displays a plurality of state information respectively indicating the states of the plurality of devices from the control device,
A first display step of generating display block data for displaying a part of the state information for each device, and displaying the generated plurality of display blocks;
An input step for receiving a selection input of one of the plurality of displayed display blocks;
A second display step of displaying the state information of the device corresponding to the display block selected and input in a larger area than the display block;
The second display step is executed in parallel with the second display step and the display positions of the display blocks that are not selected in the selection input are sequentially changed until the second display step is completed. A third display step for displaying in an area other than the display area by the step;
A display program characterized in that the program is executed.

Images