JP2016076070A - Plant monitoring system and plant monitoring method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a plant monitor technology that allows a display image securing a suitable visibility to be displayed on a display screen in accordance with specifications of a display terminal.SOLUTION: According to an embodiment, a processing device 41 of a display server 40 is configured to acquire a terminal type serving as information indicative of a kind of display terminals 10 and 20, and an image index serving as information indicative of a kind of a display image to be requested to be displayed on display screens 11 and 21 of the display terminals 10 and 20; retrieve a storage device 46 in which image layout data associated with a kind of an image configuration part corresponding to the terminal type and the image index, an arrangement coordinate thereof and display size thereof is preliminarily stored, and identify the image layout data corresponding to the terminal type and the image index; transmit an image layout data to the display terminals 10 and 20. The display terminals 10 and 20 configure the display image with the image configuration part arranged in a display window according to the arrangement coordinate of the image layout data and the display size thereof.SELECTED DRAWING: Figure 1

Description

  Embodiments described herein relate generally to a technique for constructing a display image displayed on a screen of a display terminal, and more particularly, to a technique for monitoring the inside of a plant.

  Various displays (VDT: visual display terminal) are installed in plants such as power plants. For example, a dozen display terminals are generally installed in the central control room of a power plant. A system for monitoring a plant (hereinafter referred to as a plant monitoring system) conventionally displays various types of information regarding the plant on a screen (hereinafter referred to as a display screen) of a display terminal.

  In many cases, such a plant monitoring system is designed with software for displaying various types of information on a display terminal on the assumption that a display terminal having a predetermined screen resolution such as SXGA is used. In general, the plant monitoring system is based on the premise that the screen resolution of the display terminal is not changed during operation of the plant, and the software is designed in accordance with the screen resolution.

JP 2012-69026 A

  In recent years, in order to reduce the number of personnel in the central control room and improve work efficiency at the site, I want to receive information about the plant from the plant monitoring system, even in specific places such as the central control room where multiple display terminals are installed. There is a request. In order to realize information provision regardless of location, it is necessary to support the screen resolution of various types of display terminals such as notebook PCs, tablet computers, smartphones, projectors, and the like. In addition, since the operation method differs depending on the display terminal, there may be a problem in operability when the same image is uniformly displayed on various display screens.

  For example, in a conventional plant monitoring system, the display image displayed on the display screen is premised on the use of a predetermined screen resolution such as SXGA and the operation with a keyboard and mouse. For this reason, for example, if the display image displayed on the display screen of the display terminal in the central control room is displayed on a display screen having a different screen resolution, the visibility may be reduced even if the display image can be displayed. . The display image displayed on the display screen of the display terminal in the central control room is premised on an operation with a keyboard and a mouse. For this reason, when the same display image as that displayed on the display terminal of the central control room is displayed on, for example, a tablet computer, the display image is not designed in accordance with the operation of the touch panel. May be difficult.

  Thus, in the conventional plant monitoring system, the function to display a display image on a display screen is comprised according to the specification of a specific display terminal. In order to display a display image suitable for the screen resolution of a display terminal other than a specific display terminal, for example, a newly added display terminal (hereinafter referred to as an additional terminal) on the display screen, the specification of the additional terminal is used. A matching display image needs to be generated. It is extremely inefficient and practical to design a display function that meets the specifications of the additional terminal and add the display function to the plant monitoring system every time an additional terminal is newly added. is not.

  An embodiment of the present invention has been made in view of the above circumstances, and is a plant monitoring system capable of displaying on a display screen a display image that ensures optimal visibility according to the specifications of a display terminal. And it aims at providing the plant monitoring method.

  In order to achieve the above-described object, a plant monitoring system according to an embodiment of the present invention includes an input device that receives an operation input and a display screen that can display a display image, and displays the display screen according to the operation input. A display terminal that constitutes a display image that is required to be displayed in a window, a terminal type that indicates the type of the display terminal, and a type of display image that is required to be displayed on the display screen of the display terminal. Corresponding to the image index shown, the type of the image component that is arranged in the display window of the display screen and constitutes the display image, the arrangement coordinates at which the image component is arranged in the display window, and the image configuration The image layout data in which the part is associated with the display size displayed in the display window is stored in advance, and the storage device is searched for and the terminal type of the display terminal is searched. And a processing device that identifies image layout data corresponding to the image index and transmits the image layout data to the display terminal, wherein the display terminal includes arrangement coordinates included in the image layout data received from the processing device According to the display size, a display image is configured by arranging image components in the display window.

  The plant monitoring method according to the embodiment of the present invention includes a terminal type that is information indicating the type of display terminal, and an image index that indicates the type of display image that is required to be displayed on the display screen of the display terminal. Corresponding to the terminal type and the image index, the type of the image constituent part arranged in the display window of the display screen and constituting the display image, and the image constituent part in the display window The processing device searches for a storage device in which image layout data in which the arrangement coordinates to be arranged and the display size at which the image component is displayed in the display window is associated is stored in advance, Image processing data corresponding to the specified terminal type and image index is specified by the processing device, transmitted to the display terminal, and included in the image layout data. In accordance with the arrangement coordinates and display size that, the display terminal, characterized in that forming the display image by arranging the image components within the display window.

  According to the embodiment of the present invention, the display terminal can configure and display a display image that secures optimal visibility according to the terminal type such as the screen resolution and operability.

The block diagram which shows the structure of the plant monitoring system of 1st Embodiment. It is a figure explaining the image structure part which comprises a display image, and is a figure which shows the example by which the header display part and the menu display part are arrange | positioned in the display window of the display screen of PC as an image structure part. It is a figure explaining the image structure part which comprises a display image, and is a figure which shows the example by which the header display part and the data list display part are arrange | positioned in the display window of the display screen of PC as an image structure part. It is a figure explaining the image structure part which comprises a display image, The figure which shows the example by which the header display part and the systematic diagram display part are arrange | positioned in the display window of the display screen of PC as an image structure part. It is a figure explaining the image structure part which comprises a display image, and is a figure which shows the example by which the header display part and the trend graph display part are arrange | positioned in the display window of the display screen of PC as an image structure part. It is a figure explaining the image structure part which comprises a display image, The figure which shows the example by which the header display part and the menu display part are arrange | positioned in the display window of the display screen of a tablet as an image structure part. It is a figure explaining the image composition part which constitutes a display image, and the header display part, the menu display part, the system diagram display part, and the trend graph display part are arranged in the display window of the display screen of the tablet as the image composition part. The figure which shows an example. It is a figure explaining the image layout data previously memorize | stored in the memory | storage device in 1st Embodiment, and has shown the image layout data corresponding to a terminal type and an image index. The flowchart explaining the information processing which the processing apparatus of the display server which comprises the plant monitoring system of this embodiment performs. The block diagram which shows the structure of the plant monitoring system of 2nd Embodiment. It is a figure explaining the image layout data previously memorize | stored in the memory | storage device in 2nd Embodiment, and has shown the image layout data corresponding to a terminal type and an image index. The flowchart explaining the information processing which the processing apparatus of the server for a display which comprises the plant monitoring system of 2nd Embodiment performs. The block diagram explaining the structure of the plant monitoring system of 3rd Embodiment. The figure explaining the part-specific information which can be set for every image structure part previously stored in the memory | storage device in 3rd Embodiment. The figure which shows an example of the edit image displayed on the edit screen of the maintenance terminal of 3rd Embodiment. The flowchart explaining the operation procedure of the maintenance terminal by which the edit image was displayed on the display screen in the plant monitoring system of 3rd Embodiment.

  Embodiments of the present invention will be described below with reference to the drawings. The present invention is not limited to the embodiments described below, and various modifications can be made without departing from the scope of the invention.

[First Embodiment]
(Schematic configuration of plant monitoring system)
A schematic configuration of the plant monitoring system according to the first embodiment will be described with reference to FIG.
FIG. 1 is a block diagram illustrating the configuration of the plant monitoring system of the present embodiment.

  As shown in FIG. 1, the plant monitoring system 1 includes display terminals 10 and 20, a display server 40, a data server 60, and a plurality of plant devices 8. The plant device 8 is a device provided in the plant, and is configured as a measuring device, for example. The plant equipment 8 acquires data (hereinafter referred to as process data) indicating various types of information in the plant. The plant equipment 8 is connected to the data server 60 via the process data communication line 7.

  The data server 60 acquires process data from the plant equipment 8 via the process data communication line 7. The data server 60 includes a processing device 61 that executes various types of information processing, and a storage device 66 that can store various types of data. The processing device 61 stores the process data acquired from the plant equipment 8 in the storage device 66.

  Various types of display terminals 10 and 20 are provided. For example, the display terminal 10 is configured as a personal computer (hereinafter simply referred to as “PC”), and has a screen (hereinafter referred to as display screen) 11 that displays a display image showing various information. Yes. In addition, the display terminal 10 includes a keyboard 13 and a mouse 15 as input devices that receive an operation input from the operator. The display terminal 10 acquires data for configuring a display image corresponding to the operation input received by the input devices 13 and 15 from the display server 40. The display terminal 10 configures a display image based on the data and displays it on the display screen 11.

  In the present embodiment, the display terminal 10 is configured to be able to display a plurality of display windows (windows) in the display screen 11 and corresponds to a so-called multi-window. For example, the display screen 11 has a screen resolution of SXGA (width: 1280 pixels, height: 1024 pixels).

  The display terminal 20 is configured as a tablet computer, a so-called tablet terminal (hereinafter simply referred to as “tablet”), and has a display screen 21 for displaying a display image. The display terminal 20 includes a touch panel 23 as an input device that receives an operation input from the operator. The display terminal 20 acquires data for configuring a display image corresponding to the operation input received by the touch panel 23 as an input device from the display server 40. The display terminal 20 configures a display image based on the data and displays it on the display screen 21.

  In the present embodiment, the display terminal 20 is configured to display a single display window in the display screen 21 and does not support multi-windows. In the display terminal 20 that does not support multi-window, the display window may be the entire display screen 21. As an example, an XGA (width: 1024 pixels, height: 768 pixels) is used for the display screen 21.

  The display server 40 includes a processing device 41 that executes various types of information processing, and a storage device 46 that can store various types of data. The display server 40 is connected to the display terminals 10 and 20 via the display communication line 3. The display server 40 is connected to the data server 60 via the communication line 5. Information processing executed by the processing device 41 and data stored in the storage device 46 in advance will be described later.

  Next, in the plant monitoring system of this embodiment, a method for generating a display image displayed on the display screen of the display terminal will be described with reference to FIGS.

  FIG. 2 is a diagram for explaining image components constituting a display image. FIG. 2 is a diagram showing an example in which a header display portion and a menu display portion are arranged in a display window of a PC display screen as image components. . FIG. 3 is a diagram for explaining image components constituting the display image. FIG. 3 is a diagram showing an example in which a header display portion and a data list display portion are arranged in the display window of the PC display screen as the image components. is there. FIG. 4 is a diagram for explaining image components constituting the display image. FIG. 4 is a diagram showing an example in which a header display part and a system diagram display part are arranged in the display window of the display screen of the PC. is there. FIG. 5 is a diagram for explaining image components constituting a display image, and shows an example in which a header display part and a trend graph display part are arranged in a display window of a PC display screen as the image components. is there. FIG. 6 is a diagram for explaining image components constituting the display image. FIG. 6 is a diagram showing an example in which a header display portion and a menu display portion are arranged in the display window of the tablet display screen as the image components. .

  FIG. 7 is a diagram for explaining image components constituting the display image. As the image components, a header display part, a menu display part, a system diagram display part, and a trend graph display part are arranged in the display window of the tablet display screen. It is a figure which shows the example arrange | positioned. FIG. 8 is a diagram for explaining image layout data stored in advance in the storage device in the present embodiment, and shows image layout data corresponding to the terminal type and the image index. FIG. 9 is a flowchart illustrating information processing executed by the processing device of the display server that constitutes the plant monitoring system of the present embodiment.

  The display terminals 10 and 20 receive information (hereinafter simply referred to as “display request”) regarding display images that are required to be displayed on a predetermined display window of the display screens 11 and 21 in accordance with an operation input received by the input device. Is transmitted to the display server 40.

  In the present embodiment, the display request includes information indicating the type of display image that is requested to be displayed on the display screens 11 and 21 of the display terminals 10 and 20 by an operation input received by the input device (hereinafter referred to as an image index). In addition, information indicating the type of the display terminals 10 and 20 such as the screen resolution and the type of input device (hereinafter referred to as a terminal type) is included.

  Note that a method of transmitting a display request from the display terminals 10 and 20 to the display server 40 is a URL (Uniform) including two information of an image index and a terminal type in a browser installed on the display terminals 10 and 20. Resource Locator) can be used.

  The processing device 41 of the display server 40 has a function of receiving a display request from the display terminals 10 and 20 (hereinafter referred to as a display request receiving unit) 42. In the present embodiment, the display request includes the terminal type in addition to the image index.

  The terminal type includes information on the operability of the display terminals 10 and 20 such as whether it is a PC or a tablet, multi-window support, and whether or not a touch panel is provided as an input device. Yes. In addition, the terminal type includes information on the screen resolution of the display screens 11 and 21, for example, information on the number of pixels in the width direction and the number of pixels in the height direction of the display screens 11 and 21 such as SXGA and XGA. Yes. The terminal type may include information on the pixel density (ppi: pixels per inch) and the aspect ratio of the display screens 11 and 21.

  On the other hand, in this embodiment, the image index includes a “menu” (see FIGS. 2, 6, and 7) that is a list of items that can be selected by the operator, and a “data list” that is a list of various data. (Refer to FIG. 3), a “system diagram” (see FIGS. 4 and 7) that schematically shows various systems constituting the plant, and a “trend graph” that is a graph showing changes in process data over time. (See FIGS. 5 and 7).

  In the storage device 46, as shown in FIG. 8, corresponding to the terminal type and the image index described above, a part (hereinafter referred to as an image constituent part) that is arranged in the display window and constitutes a display image is provided. The type, coordinates at which the image component is arranged in the display window (hereinafter referred to as arrangement coordinates), dimensions at which the image component is displayed in the display window (hereinafter referred to as display size), Data (hereinafter referred to as image layout data) associated with information (hereinafter referred to as part-specific information) displayed in the image constituent part is stored in advance. In the present embodiment, the image layout data includes partial attributes.

  Optimal image layout data corresponding to various terminal types and image indexes is prepared in advance and stored in advance in the image layout data storage unit 47 of the storage device 46. The processing device 41 has a function (hereinafter referred to as an image layout data specifying unit) 43 that searches the image layout data storage unit 47 of the storage device 46 and specifies image layout data corresponding to the terminal type and the image index. ing.

  In the present embodiment, the types of the image constituent parts include a part for displaying a “menu” (hereinafter referred to as a menu display part) 52 as shown in FIG. 2, FIG. 6, and FIG. A portion for displaying a “data list” (hereinafter referred to as a data list display portion) 53 and a portion for displaying a “system diagram” (hereinafter referred to as a system diagram display portion) 54 as shown in FIG. 4 and FIG. As shown in FIGS. 5 and 7, there is a portion (hereinafter referred to as a trend graph display portion) 55 for displaying a “trend graph”.

  Further, as shown in FIGS. 2 to 7, the types of image components are displayed on the upper side of the menu display portion 52, the data list display portion 53, the system diagram display portion 54, and the trend graph display portion 55 described above. Thus, information corresponding to each image, for example, a portion (hereinafter referred to as a header display portion) 50 for displaying character information is included.

  Each of these image components is arranged in a predetermined display window according to the arrangement coordinates associated in the image layout data, and is displayed in the display window according to the associated display size. Thereby, the image constituent parts constitute a part of the display image displayed on the display screens 11 and 21, respectively.

  The arrangement coordinates are coordinates at which image components are arranged in the display windows 12 and 22 shown in FIGS. 2 to 7, and the value of the coordinate X in FIG. 8 is the display window as shown by the arrow X in FIG. 12 and 22 indicate the position in the width direction (so-called horizontal direction), and the value of the coordinate Y indicates the position in the height direction (so-called vertical direction) of the display windows 12 and 22, as indicated by the arrow Y in FIG. ing. The image constituent parts are respectively located on the lower side in the height direction indicated by the arrow Y in the figure and from the position indicated by the coordinates X and Y of the image layout data in the display windows 12 and 22 and in the width direction indicated by the arrow X in the figure. Displayed on the right side.

  In the display terminal (tablet) 20 that does not support multi-window, the display window 22 may be the entire display screen 21, and the above-described arrangement coordinates may be coordinates on the display screen 21.

  The display size is a size at which an image component is displayed in the display windows 12 and 22. The value indicated by “width” in FIG. 8 indicates the number of pixels in the width direction indicated by the arrow X in FIG. The value indicated by “sa” indicates the number of pixels in the height direction indicated by the arrow Y. In the present embodiment, each of the image components 50 to 55 has the number of pixels indicated by “width” in FIG. 8 on the right side in the width direction indicated by the arrow X in the drawing from the position indicated by the coordinates X and Y described above. In the lower side in the height direction indicated by the arrow Y, the number of pixels indicated by “height” in FIG. 8 is displayed.

  The part-specific information is information displayed in the image constituent part as shown in FIG. For example, the header display portion 50 is associated with the title of the image component displayed below the header display portion 50, the time related to the information, and the like as partial information. In addition, information such as link destinations indicated by a plurality of buttons 52a, 52b, 52c (see FIGS. 2 and 6) displayed in the menu display portion 52 is associated with the menu display portion 52 as partial information. ing. Further, the trend graph display portion 55 is associated with information indicated by the graph displayed in the trend graph display portion 55 as partial information.

  In addition, in the storage device 46, software (hereinafter referred to as “partial display software”) for displaying the image component on the display window with a desired display size is stored in advance for each image component. Specifically, the partial display software includes software for displaying the header display portion 50, software for displaying the menu display portion 52, software for displaying the data list display portion 53, and a system diagram. There are software for displaying the display portion 54 and software for displaying the trend graph display portion 55.

  Each of these partial display software includes information on basic graphic elements constituting the image constituent parts, so-called display elements. In addition, the partial display software has a function of enlarging or reducing the image constituent part so that the image constituent part is displayed in the display size described above on the display windows on the display screens 11 and 21.

  The partial display software is stored in advance in the partial display software storage unit 48 of the storage device 46. The processing device 41 of the display server 40 searches the partial display software storage unit 48 of the storage device 46 and specifies a partial display software corresponding to the type of image component (hereinafter referred to as a partial display software specifying unit). ) 44. The partial display software specifying unit 44 specifies partial display software corresponding to the type of the image component included in the image layout data specified by the image layout data specifying unit 43.

  In addition, the processing device 41 includes data for constructing a display image including the image layout data specified by the image layout data specifying unit 43 and the partial display software specified by the partial display software specifying unit 44 (hereinafter, referred to as “image display data”). It has a function (hereinafter simply referred to as a display data return unit) 45 for returning “display data”) to the display terminals 10 and 20 to which the display request has been sent.

  In the plant monitoring system 1 configured as described above, when the operator operates the input device and selects, for example, the button 52a indicating “trend” shown in FIG. The image index assigned to 52a is specified. The display terminals 10 and 20 transmit a display request including the image index and the terminal type to the display server 40. In the display server 40, as shown in step S02 in FIG. 9, the display request receiving unit 42 of the processing device 41 receives the display request and specifies the image index and the terminal type included in the display request.

  As shown in step S04, the image layout data specifying unit 43 of the processing device 41 searches the image layout data storage unit 47 of the storage device 46 to specify the image layout data corresponding to the terminal type and the image index. The image layout data includes information for each part in addition to the type of the image constituent part to be displayed and the display size and arrangement coordinates of the image constituent part in the display window.

  Further, as shown in step S06, the partial display software specifying unit 44 of the processing device 41 searches the partial display software storage unit 48 of the storage device 46 and displays the partial display corresponding to the type of the image constituent portion indicated by the image layout data. Identify software.

  Then, as shown in step S08, the display data return unit 45 of the processing device 41 returns the image layout data to the display terminals 10 and 20 as display data together with the specified partial display software.

  Thereby, the display terminals 10 and 20 can receive the image layout data corresponding to the terminal type and the image index, and the partial display software. Partial display software (so-called software parts) operates on the display terminals 10 and 20.

  The display terminals 10 and 20 configure the display image by arranging the screen components in predetermined display windows of the display screens 11 and 21 according to the arrangement coordinates and the display size included in the image layout data. In the display terminals 10 and 20, the partial display software enlarges or reduces the corresponding image constituent part so that the display size indicated by the image layout data is obtained, and the image constituent part is displayed in the display window of the display screens 11 and 21 according to the arrangement coordinates. Is displayed.

  For example, when the trend graph display part 55 is included in the image constituent part displayed in the display window, the display terminals 10 and 20 send the process data corresponding to the part-specific information indicated by the image layout data to the data server. 60. The display terminals 10 and 20 display the acquired process data on the trend graph display part (image constituent part) 55 as a trend graph.

  As described above, in the plant monitoring method of the present embodiment, the processing device 41 of the display server 40 has a terminal type that is information indicating the type of the display terminals 10 and 20 and the display screen of the display terminals 10 and 20. The image index, which is information indicating the type of display image that is required to be displayed on 11 and 21, is acquired and specified (FIG. 9, S02). Then, the processing device 41 searches the storage device 46 in which the image layout data in which the type, the arrangement coordinates, and the display size of the image component corresponding to the terminal type and the image index are associated with each other and searches the terminal. Image layout data corresponding to the type and image index is specified (FIG. 9, S04), and transmitted to the display terminals 10 and 20 (FIG. 9, S08). The display terminals 10 and 20 configure the display image by arranging the image components in the display window according to the arrangement coordinates and the display size of the image layout data.

  Thus, the display terminals 10 and 20 can configure a display image that secures optimal visibility according to the terminal type such as the screen resolution and operability, and can display the display image on the display screens 11 and 21. According to the present embodiment, the display terminals 10 and 20 simply transmit a display request including the terminal type and the image index to the display server 40, and display suitable for the screen resolution and operability of the display terminals 10 and 20 is achieved. Images can be displayed on the display screens 11 and 21.

  In the present embodiment, the various partial display software is stored in advance in the storage device 46 of the display server 40, but the present invention is not limited to this mode. For example, partial display software may be installed in each display terminal 10 and 20 in advance, and the display server 40 may transmit only image layout data as display data to the display terminals 10 and 20. In this case, in the display terminals 10 and 20, the partial display software is started according to the type of the image constituent part indicated by the received image layout data, and the partial display software follows the display size and arrangement coordinates indicated by the image layout data. A display image is formed by arranging the image constituent parts in the display window. According to this aspect, the data amount of the display data sent from the display server 40 to the display terminals 10 and 20 can be reduced.

  In the present embodiment, the display terminals 10 and 20 request display of the terminal type together with the image index and transmit it to the display server 40, but the present invention is not limited to this mode.

[Second Embodiment]
The structure of the plant monitoring system of 2nd Embodiment is demonstrated using FIGS. 10-12. FIG. 10 is a block diagram illustrating the configuration of the plant monitoring system of the present embodiment. FIG. 11 is a diagram for explaining image layout data stored in advance in the storage device in the present embodiment, and shows image layout data corresponding to a terminal type and an image index. FIG. 12 is a flowchart for explaining information processing executed by the processing device of the display server constituting the plant monitoring system of the present embodiment.

  In the plant monitoring system according to the present embodiment, the display request transmitted from the display terminal to the display server does not include the terminal type, and the display server processing apparatus that has received the display request receives the display request from the display terminal. This is different from the first embodiment in that it has a function of specifying the terminal type. In addition, about the structure substantially common to 1st Embodiment, the same code | symbol is attached | subjected and description is abbreviate | omitted.

  As shown in FIG. 10, in the plant monitoring system 1C of the present embodiment, the display request receiving unit 42C of the processing device 41C of the display server 40C receives a display request from the display terminals 10 and 20. The display request includes an image index and does not include a terminal type. The display request receiving unit 42C acquires an image index as the display request (FIG. 12, step S12).

  In addition, the processing apparatus 41 </ b> C of the present embodiment has a function (hereinafter, referred to as a terminal type specifying unit) 70 that communicates with the display terminals 10 and 20, acquires information related to the display terminal, and specifies the terminal type. Yes. When the display request receiving unit 42C receives the display request, the terminal type specifying unit 70 communicates with the display terminals 10 and 20 that are the transmission source of the display request, and acquires information regarding the display terminals 10 and 20 including the screen resolution. . Specifically, the terminal type specifying unit 70 transmits a signal or the like for inquiring the terminal type to the display terminals 10 and 20, and acquires information on the terminal type as a reply. The terminal type includes information on whether it is a PC or a tablet, as well as the screen resolution of the display terminals 10 and 20, that is, the number of pixels in the width direction and the number of pixels in the height direction of the display screens 11 and 21. Yes. The terminal type identification unit 70 identifies the screen resolution of the display terminals 10 and 20 based on the information acquired from the display terminals 10 and 20 (FIG. 12, step S14).

  The image layout data specifying unit 43C of the processing device 41C of the present embodiment searches the image layout data storage unit 47C of the storage device 46C using the image index as a search key, and image layout data corresponding to the image index and a predetermined reference resolution. (Refer to FIG. 11) is specified (FIG. 12, step S16).

  In this embodiment, as shown in FIG. 11, the reference resolution is set to SXGA (width: 1280 pixels, height: 1024 pixels) when the image index is a menu, a data list, or a trend graph. When the image index is a system diagram and the terminal type is a tablet, the reference resolution is set to XGA.

  The image layout data storage unit 47C stores image layout data corresponding to the image index and the reference resolution in advance. The image layout data includes arrangement coordinates, display size, and component-specific information corresponding to the reference resolution and the image index. The arrangement coordinates and the display size are preset to values that match the reference resolution.

  The processing device 41C has a function (hereinafter referred to as a resolution ratio calculation unit) 72 that calculates a ratio of the screen resolution included in the terminal type to a reference resolution (hereinafter referred to as a resolution ratio). The resolution ratio calculation unit 72 calculates the resolution ratio of the screen resolution specified by the terminal type specifying unit 70 with respect to the reference resolution (FIG. 12, step S18).

  The resolution ratio includes the ratio of the number of pixels in the width direction (see arrow X in FIG. 2) (hereinafter referred to as X-axis ratio) and the ratio of the number of pixels in the height direction (see arrow Y in FIG. 2) (hereinafter referred to as “X-axis ratio”). Y axis ratio). For example, when the screen resolution of the display terminal (tablet) 20 is XGA (width: 1024 pixels, height: 768 pixels), the X-axis ratio with respect to the reference resolution (SXGA) is 0.8 (= 1024/1280). Thus, the Y-axis ratio is 0.75 (= 768/1024).

  The processing device 41C has a function of calculating image layout data corresponding to the resolution ratio based on the image layout data corresponding to the reference resolution and the image index and the resolution ratio calculated by the resolution ratio calculation unit 72 (hereinafter referred to as an image). 74 (referred to as layout data calculation unit). Specifically, the image layout data calculation unit 74 includes the image layout data corresponding to the reference resolution stored in advance in the image layout data storage unit 47C, and the resolution ratio (X-axis ratio) calculated by the resolution ratio calculation unit 72. And the Y-axis ratio), the arrangement coordinates and the display size corresponding to the screen resolution of the display terminal 20 are calculated (FIG. 12, step S20).

  For example, the image layout data calculation unit 74 multiplies the coordinates X and Y (see FIG. 8), which are the arrangement coordinates corresponding to the reference resolution, by the X-axis ratio and the Y-axis ratio, respectively, to obtain the screen resolution of the display terminal 20. The corresponding arrangement coordinates (coordinate X and coordinate Y) are used. In addition, the image layout data calculation unit 74 multiplies the width and height (see FIG. 8), which are display sizes corresponding to the standard resolution, by the X-axis ratio and the Y-axis ratio, respectively, and corresponds to the screen resolution of the display terminal 20. Display size (width and height).

  In the present embodiment, the processing device 41C uses the arrangement coordinates and display size corresponding to the screen resolution of the display terminal 20 calculated by the image layout data calculation unit 74 as new image layout data together with the screen resolution. And a function (hereinafter referred to as an image layout data recording unit) 76 for recording in the image layout data storage unit 47C of the storage device 46C. That is, the image layout data recording unit 76, in addition to the image layout data corresponding to the reference resolution, the terminal type newly including the screen resolution specified by the terminal type specifying unit 70, the arrangement coordinates corresponding to the terminal type, and The display size, that is, the arrangement coordinates and the display size calculated by the image layout data calculation unit 74 are stored in the image layout data storage unit 47C in association with each other.

  Then, as shown in step S22, the partial display software specifying unit 44 specifies partial display software corresponding to the type of the image constituent part indicated by the image layout data, and extracts it from the partial display software storage unit 48 of the storage device 46C. Further, as shown in step S24, the display data return unit 45, together with the extracted partial display software, uses the image layout data whose arrangement coordinates and display size are calculated by the image layout data calculation unit 74 as display data. It returns to the display terminals 10 and 20.

  Also in this embodiment, the display terminals 10 and 20 can receive the image layout data corresponding to the screen resolution and the image index, and the partial display software. In accordance with the arrangement coordinates and the display size indicated by the image layout data, a screen image can be arranged in a predetermined display window of the display screens 11 and 21 to constitute a display image. The display terminals 10 and 20 can configure a display image that ensures optimum visibility according to the screen resolution and display the display image on the display screens 11 and 21. According to the present embodiment, the display terminals 10 and 20 display display images suitable for various screen resolutions on the display screens 11 and 21 simply by transmitting a display request including an image index to the display server 40. Can do.

[Third Embodiment]
The structure of the plant monitoring system of 3rd Embodiment is demonstrated using FIGS. 13-15. FIG. 13 is a block diagram illustrating the configuration of the plant monitoring system of the present embodiment. FIG. 14 is a diagram for explaining part-by-part information that can be set for each image constituent part, which is stored in advance in the storage device in the present embodiment. FIG. 15 is a diagram illustrating an example of an edited image displayed on the editing screen of the maintenance terminal according to the present embodiment.

  In this embodiment, the processing device is different from the second embodiment in that it has a function of editing image layout data stored in the image layout data storage unit of the storage device. In addition, about the structure substantially common to 2nd Embodiment, the same code | symbol is attached | subjected and description is abbreviate | omitted.

  As shown in FIG. 13, the plant monitoring system 1E of the present embodiment has a terminal (hereinafter referred to as a maintenance terminal) 30 for maintaining the display server 40E. In the present embodiment, the maintenance terminal 30 is configured as a personal computer. The maintenance terminal 30 has a display screen 31 that displays a display image showing various information. In addition, the maintenance terminal 30 has an input device 33 that receives an operation input from the operator. For the input device 33, for example, a keyboard or a mouse can be used.

  On the other hand, the processing device 41E of the display server 40E has a function (hereinafter referred to as an image layout data editing unit) 80 for editing image layout data stored in advance in the image layout data storage unit 47C of the storage device 46E. ing. In the storage device 46E, the part-specific information (see FIG. 14) that can be set for each image constituent part is stored in advance in the part-specific information storage unit 82.

  In this embodiment, when editing the image layout data, the image layout data editing unit 80 displays a display image (hereinafter referred to as an edited image) 90 for editing the image layout data on the display screen 31 of the maintenance terminal 30. Is displayed on a predetermined display window as shown in FIG. In the edited image 90, a list of image component types (names) stored in the area 91 for inputting the type (name) of the image index, the area 92 for inputting the terminal type, and the partial information storage unit 82 is displayed. An area 93 for displaying, an area 94 for displaying the current setting state of the image layout data, and an area 95 for displaying the image layout data corresponding to the image constituent parts are provided. In the present embodiment, the area 95 for displaying image layout data includes an area 95a for displaying arrangement coordinates, an area 95c for displaying a display size, and an area 95e for displaying information for each display portion.

  The edited image 90 includes a button (hereinafter referred to as a load button) 96 for executing a function of reading the image layout data stored in the image layout data storage unit 47C of the storage device 46E into the maintenance terminal 30, and the maintenance terminal 30. Has a button (hereinafter referred to as a “save button”) 98 for executing a function of recording the image layout data edited in the above in the image layout data storage unit 47C.

  A procedure for editing image layout data using the edited image configured as described above will be described with reference to FIGS. FIG. 16 is a flowchart illustrating the operation procedure of the maintenance terminal in which the edited image is displayed on the display screen in the plant monitoring system of the present embodiment.

  First, as shown in step S <b> 32, the operator inputs the name of the image index in the area 91 of the edited image 90. Also, as shown in step S34, the name of the terminal type is entered in area 92.

  Then, the operator clicks the load button 96 to read image layout data corresponding to the input image index and terminal type from the display server 40 to the maintenance terminal 30 (FIG. 16, step S36). From the maintenance terminal 30, the image index and the terminal type corresponding to the operation input by the operator are transmitted to the display server 40E.

  The image layout data editing unit 80 of the processing device 41E receives an operation input from the maintenance terminal 30, and uses the image layout data storage unit 47C of the storage device 46E using the image index and terminal type included in the operation input as search keys. A search is performed, the corresponding image layout data is extracted, and transmitted to the maintenance terminal 30.

  Thereby, the maintenance terminal 30 receives the image layout data from the display server 40E. The image layout data includes the type (name) of the image constituent part, the arrangement coordinates corresponding to the image constituent part, the display size, and the information for each part. As shown in FIG. 15, the maintenance terminal 30 displays a list of image component types (names) in an area 93 of the edited image 90, and the arrangement coordinates and display size of the image component included in the image layout data. Accordingly, each image constituent part is displayed in the area 94.

  Then, as shown in step S38, when the operator selects an image component in the area 93 and copies it to the area 94 in the edited image 90, the image layout data corresponding to the input image index and terminal type is newly added. A new image component is added (FIG. 16, step S38).

  Further, when an image component in the area 93 is selected in the edited image 90, the current value of the image layout data corresponding to the image component is displayed in the area 95. The operator of the maintenance terminal 30 can rewrite the image layout data displayed in the area 95 within a settable range.

  The part-specific information that can be set for each image constituent part is provided from the part-specific information storage unit 82 of the storage device 46E. For example, the partial information can be changed by rewriting the area 95e indicating the partial information by operating the input device 33 by the operator (FIG. 16, step S40).

  When the operator clicks the save button 98 in the edited image 90 in which the above operation input has been performed, the edited image layout data is transmitted from the maintenance terminal 30 to the display server 40E. The image layout data editing unit 80 shown in FIG. 13 receives the image layout data from the maintenance terminal 30 and records it in the image layout data storage unit 47C of the storage device 46E (FIG. 16, step S42).

  The plant monitoring system 1E configured as described above updates the image layout data stored in the image layout data storage unit 47C of the storage device 46E when the operator operates the input device 33 of the maintenance terminal 30. be able to. Even during operation of the plant monitoring system 1E, the image layout data can be changed, or new image layout data corresponding to a new terminal type can be added to the storage device 46E of the display server 40E.

[Other Embodiments]
In each of the above-described embodiments, the display terminals 10 and 20 and the display server 40 are connected via the display communication line 3, but between the display terminals 10 and 20 and the display server 40. The mode of data communication in is not limited to this. The display terminals 10 and 20 and the display server 40 may perform data communication via wireless.

  In the embodiment described above, the display server 40 transmits the partial display software together with the image layout data to the display terminals 10 and 20 as display data. However, the present invention is not limited to this aspect. Absent. In the display server 40, image data indicating a screen component may be generated by image layout data and partial display software, and the generated image data may be transmitted to the display terminals 10 and 20 as display data. . In this case, the display terminals 10 and 20 can configure a display image based on the image data from the display server 40 and the process data acquired from the data server 60.

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

1, 1C, 1E Plant monitoring system 3 Display communication line 5 Communication line 7 Process data communication line 8 Plant equipment 10 Display terminal 11 Display screen 12 Display window 13 Keyboard (input device)
15 Mouse (input device)
20 display terminal 21 display screen 22 display window 23 touch panel (input device)
30 maintenance terminal 31 display screen 33 input device 40, 40C, 40E display server 41, 41C, 41E processing device 42, 42C display request receiving unit 43, 43C image layout data specifying unit 44 partial display software specifying unit 45 display data reply Units 46, 46C, 46E Storage devices 47, 47C Image layout data storage unit 48 Partial display software storage unit 50 Header display part (image constituent part)
52 Menu display part (image composition part)
52a, 52b, 52c Button 53 Data list display part (image constituent part)
54 System diagram display part (image composition part)
55 Trend graph display part (image composition part)
60 Data server 61 Processing device 66 Storage device 70 Terminal type identification unit 72 Resolution ratio calculation unit 74 Image layout data calculation unit 76 Image layout data recording unit 80 Image layout data editing unit 82 Partial information storage unit 90 Edited images 91, 92, 93, 94, 95, 95a, 95c, 95e Area 96 Load button 98 Save button

Claims (9)

A display terminal having an input device that accepts an operation input and a display screen capable of displaying a display image, and constituting a display image that is required to be displayed on a display window of the display screen according to the operation input;
A terminal type indicating the type of the display terminal and an image index indicating the type of display image required to be displayed on the display screen of the display terminal are arranged and displayed in the display window of the display screen. An image in which the types of image constituent parts constituting the image, the arrangement coordinates at which the image constituent parts are arranged in the display window, and the display sizes at which the image constituent parts are displayed in the display window are associated with each other. A storage device in which layout data is stored in advance;
A processing device for searching the storage device to identify image layout data corresponding to a terminal type and an image index of the display terminal, and transmitting the image layout data to the display terminal;
With
The plant monitoring system, wherein the display terminal arranges an image constituent part in the display window according to an arrangement coordinate and a display size included in the image layout data received from the processing device. In the storage device, partial display software, which is software capable of displaying an image component in a desired display size in a display window of a display screen, is stored in advance in association with the type of the image component. And
The processing device searches the storage device to identify the partial display software corresponding to the type of the image component constituting the image layout data, and transmits it to the display terminal as display data together with the image layout data.
The display terminal enlarges or reduces the image component so that the display size of the image layout data becomes the display size of the image layout data, and arranges the image component in the display window of the display screen according to the arrangement coordinates of the image layout data. The plant monitoring system according to claim 1, wherein: A data server for acquiring process data from plant equipment provided in the plant;
The image layout data is associated with partial information corresponding to the terminal type and the image index, which is information displayed in the image component.
The plant monitoring system according to claim 1 or 2, wherein the display terminal acquires process data corresponding to the part-specific information from the data server and displays the process data on the image constituent part. The display terminal transmits a terminal type and an image index to the processing device as a display request that is information related to a display image that is required to be displayed on a predetermined display window of a display screen,
The plant monitoring system according to any one of claims 1 to 3, wherein the processing device specifies image layout data corresponding to a terminal type and an image index received from the display terminal. The display terminal transmits an image index to the processing device as a display request that is information about a display image that is requested to be displayed on a predetermined display window of a display screen;
When receiving the display request, the processing device acquires information about the display terminal to specify the terminal type, and specifies the specified terminal type and image layout data corresponding to the image index received from the display terminal. The plant monitoring system according to any one of claims 1 to 3, wherein The processor is
Calculating a resolution ratio which is a ratio of a screen resolution included in the specified terminal type to a predetermined reference resolution;
6. The plant monitoring system according to claim 5, wherein the arrangement coordinates and the display size of the image layout data corresponding to the screen resolution are calculated based on the calculated resolution ratio. The plant monitoring system according to claim 6, wherein the processing device records the calculated arrangement coordinates and display size together with the screen resolution as image layout data in the storage device. The processing device has an image layout data editing unit capable of editing image layout data stored in the storage device,
The image layout editing unit displays an edited image, which is a display image for editing image layout data, on the display screen of the maintenance terminal, and records the image layout data received from the maintenance terminal in the storage device. The plant monitoring system according to any one of claims 1 to 7, wherein The processing device identifies a terminal type, which is information indicating the type of display terminal, and an image index indicating the type of display image that is required to be displayed on the display screen of the display terminal,
Corresponding to the terminal type and the image index, the type of the image component that is arranged in the display window of the display screen to constitute the display image, the arrangement coordinates at which the image component is arranged in the display window, The processing device searches the storage device in which the image layout data in which the image component is displayed in the display window is associated with the display size, and the specified terminal type and The processing device identifies the image layout data corresponding to the image index and transmits it to the display terminal,
A plant monitoring method, wherein the display terminal configures a display image by arranging an image constituent part in the display window according to an arrangement coordinate and a display size included in the image layout data.

Images