JP2014056157A - Image conversion device and plant monitoring device - Google Patents

Abstract

An image conversion apparatus capable of displaying each item on a wide screen W without damaging an image of a display screen composed of a plurality of items created on the premise of drawing on a square screen S. provide.
An image conversion device for converting an item displayed on a screen (square screen S) of a predetermined size based on reference coordinates and predetermined parameters into a screen for a different screen size (wide screen W). , For all of a plurality of items of different types, a reference coordinate conversion means for converting the reference coordinates by the same conversion procedure according to the difference of the screen size, and for each of the types of the plurality of items of different types And parameter conversion means for converting the parameter according to the difference in the screen size.
[Selection] Figure 1

Description

  The present invention provides an image conversion apparatus for displaying a display screen composed of a plurality of items created for a first screen (original screen) on a second screen having a different size from the first screen, and The present invention relates to a plant monitoring apparatus including an image conversion apparatus.

  A plant monitoring apparatus that monitors the operation status of a plant in an industrial field such as steel and a public field such as water and sewage displays a plant display screen that schematically represents a plant to be monitored on a predetermined first screen. Configured to do. The plant display screen is composed of a plurality of types of items, and these items include figures such as squares and circles representing various facilities constituting the plant as symbols, lines connecting the symbolized facilities, Consists of plant monitoring data. In particular, the plant display screen is configured to display the plant monitoring data in real time. (For example, refer to Patent Document 1).

  The plant monitoring device 10 loads information (a plurality of items and their attribute information) on the plant display screen created by the plant monitoring screen creation device (creation tool) 20 as shown in FIG. The plant display screen is configured to be displayed on the display 30 by drawing a plurality of items on the screen of the display 30 according to the coordinates and attributes indicating the display position and size. .

  The plant monitoring screen creation device 20 inputs information given from an input device (not shown) such as a keyboard, mouse, tablet, etc., and classifies various items (for example, graphic definition information) constituting the plant display screen. And a coordinate / graphic definition input device 21 for obtaining coordinate data specifying the display position and its size on the display screen, and information of each item (graphic definition information) obtained by the coordinate / graphic definition input device 21 And an image command conversion device 22 for creating drawing data for the display screen in accordance with the coordinate data and the display format of the plant monitoring data. These drawing data are converted into, for example, a fixed image command sequence A, a variable image command sequence B, and a data display command sequence C, and are classified for each type and stored in the plant screen file 23.

  Specifically, the item information input via the coordinate / graphic definition input device 21 is, for example, as shown in FIG. 10, a graphic composed of line segments, rectangles, solids, ellipses, etc. for forming a fixed image. Item information (definition information) indicating the type of the item, coordinate data for specifying the display position and size of the item, and the like. Then, the image command conversion device 22 converts the drawing information into a command command composed of definition information and coordinate data for drawing on the display 30 according to the item information and the coordinate data.

  Such conversion to an instruction command is similarly executed not only for the fixed image but also for the display of the variable image and the plant monitoring data, and is classified for each type and stored in the plant screen file 23. As a result, the command screens A and B indicating the drawing data of the fixed image and the variable image, and the command display C indicating the data display contents and the display form of the plant monitoring data are obtained in the plant screen file 23, respectively.

  The plant monitoring device 10 loads the command strings A, B, and C from the plant screen file 23 of the plant monitoring screen creation device 20 described above into the plant screen file 11 respectively. The plant monitoring device 10 uses the fixed image drawing device 12, the variable image drawing device 13, and the data display device 14 in accordance with the command sequences A, B, and C stored in the plant screen file 11. A plurality of items including the fixed image, the variable image, and the plant monitoring data are respectively drawn on the screen of the container 30, thereby displaying a plant display screen (see, for example, Patent Document 1).

JP 2008-96935 A

  By the way, the plant monitoring apparatus 10 conventionally includes a display 30 having a square screen (first screen) S having an aspect ratio of [4: 3]. The drawing software or the like in the plant monitoring screen creation device 20 is constructed exclusively on the premise that a plant display screen for a square screen using the display 30 is created. On the other hand, in recent years, a display device 30 having a wide screen (second screen) W having a different aspect ratio from the first screen and having an aspect ratio of [16: 9] has been increasingly used. Yes.

  However, changing the configuration of the plotting software or the like in the plant monitoring screen creation device 20 in accordance with the wide screen W is a large-scale and requires a large equipment cost. Moreover, since it is necessary to recreate the plant display screen itself in accordance with the wide screen W, it requires a lot of labor, and the software resource (command sequence for constructing the plant display screen) used so far is wasted. There is.

  In this regard, in Patent Document 1 described above, when the resolution or screen size of the display 30 is changed, various items (graphics) displayed on the display 30 according to the resolution ratio of the changed display 30. A technique for changing the display position and the size thereof is disclosed. However, when the display position and size of various items on the plant display screen created on the premise of display on the square screen S are changed according to the resolution ratio and displayed on the wide screen W, for example, FIG. As schematically shown, the graphic elements displayed on the wide screen W are deformed unnaturally. Then, the image of the plant component apparatus schematically shown by various items on the plant display screen may be impaired, and plant monitoring data may be difficult to read and may be difficult to grasp.

  The present invention has been made in consideration of such circumstances, and the object thereof is plant constituent equipment schematically shown by various items on a plant display screen created for a first screen (for example, a square screen). When it is possible to display on a second screen (for example, a wide screen) having a size different from that of the first screen without damaging the image, and to display the plant monitoring data on the first screen (square screen) To provide an image conversion device that can be displayed on the second screen (wide screen) in an easy-to-view state as well as a plant monitoring device and a plant monitoring screen creation device configured to include this image conversion device is there.

In order to achieve the above-described object, an image conversion apparatus according to the present invention is an image conversion apparatus that converts items displayed on a screen of a predetermined size based on reference coordinates and predetermined parameters for a screen having a different screen size. There,
The item is composed of a plurality of items of different types,
Reference coordinate conversion means for converting the reference coordinates by the same conversion procedure according to the difference in the screen size for all of the plurality of items having different types,
Parameter conversion means for converting the parameter according to the difference in the screen size for each of a plurality of items of different types.

  In particular, it is preferable that the parameter conversion means enables the parameters to be converted by a procedure different from the conversion procedure of the reference coordinate conversion means.

  Here, the item is intended to include character figures and lines (linear figures) in addition to circles, ovals, sectors, and polygonal solid shapes.

  In the present invention, a plurality of items are drawn on the screen of the display 30 according to the reference coordinates and parameters that are attribute information. At this time, the method of parameter conversion is changed according to the item type.

  The reference coordinates are information for specifying the display position of the item, and the parameters are information for specifying the size of the item. For example, the parameter includes coordinate information for specifying the aspect ratio of the graphic or the end coordinates of the graphic.

A plant monitoring device according to the present invention comprises the image conversion device having the above-described configuration and a plurality of drawing devices having different screen sizes to monitor a plant,
The image conversion apparatus is a screen display control means for plant monitoring, a figure drawing procedure for drawing a figure based on the reference coordinates based on the reference coordinates and parameters on a reference screen, and the reference screen and the drawing apparatus. A reference coordinate conversion procedure for converting the reference coordinates according to the difference in screen size;
The reference coordinate conversion unit converts the reference coordinates on the reference screen of all items to be coordinate-converted based on the reference coordinate conversion procedure according to the difference in screen size between the reference screen and each drawing device. Convert each to the reference coordinates in the device,
The parameter conversion means converts the parameter on the reference screen of the item to be coordinate converted into the parameter of the screen of each drawing device according to the difference in the screen size of the reference screen and the drawing device for each item type. And
A screen of each drawing apparatus based on the figure drawing procedure using the reference coordinates for each drawing apparatus converted by the reference coordinate conversion means and the parameters for each drawing apparatus obtained by the parameter conversion means. It is characterized by drawing and displaying figures on top.

Specifically, the image conversion apparatus displays, for example, a display screen created for a first screen composed of a square screen with an aspect ratio of [4: 3], for example, a wide screen with an aspect ratio of [16: 9]. For display on a second screen consisting of screens,
Determining means for determining whether to convert the display format of the item according to the attribute information of the item included in the display screen;
The reference coordinates for specifying the display position on the first screen of the item that is determined not to convert the display format by the determination means are the first screen and the second screen for all items to be converted. Reference coordinate conversion means for converting the reference coordinates in the second screen based on the coordinate positional relationship previously associated with each other, and the parameters in the first screen of the item, the reference in the second screen First conversion processing means including parameter conversion means for converting each of the coordinates into a parameter in the second screen based on coordinates;
An item connected to an item that is determined not to convert the display format, and a specific coordinate that includes a start point and an end point on the first screen of the item that is determined to be converted by the determination unit. Specific conversion means for converting into specific coordinates on the second screen based on the positional relationship, and the previous second screen in accordance with the size difference between the first screen and the second screen in the parameter of the item And a second conversion processing unit including a parameter conversion unit for converting the parameter into a parameter.

  Specifically, the coordinate position relationship is determined in accordance with, for example, the composition ratio of the number of horizontal dots and the composition ratio of the number of vertical dots constituting the first and second screens, respectively. The item that does not convert the display format includes, for example, a symbol graphic included in the display screen or a display of plant monitoring data. The item that converts the display format includes, for example, a plurality of symbol graphics having different display positions. Consists of line segments that connect each other.

  The item whose display format is not converted includes a plurality of items grouped as one group, and the first conversion processing unit specifies a display position of one item included in the group in units of the group. The reference coordinates to be converted into reference coordinates on the second screen, and the parameters of the item and the parameters of other items included in the group are converted into the reference coordinates on the first screen based on the converted reference coordinates. The relative coordinate position relationship is maintained, and each is converted as a parameter in the second screen.

  Preferably, the first conversion processing means is indicated by a reference position of other items excluding reference coordinates specifying a display position of the one item of a plurality of items grouped as one group and a parameter of each item. A difference between the reference coordinates on the first screen and the reference coordinates on the second screen of the group is added to each of the plurality of coordinates, and the display position of each item on the second screen A plurality of coordinates indicated by the parameters are respectively obtained.

Another image conversion apparatus according to the present invention is as follows.
Determining means for determining whether to convert the display format of the item according to the item attribute information included in the display screen;
The display position on the first screen and the parameter of the item determined not to convert the display format by the determination means are determined in advance in association between the first screen and the second screen. Third conversion processing for converting each of the first screen and the second screen into coordinates on the second screen as a position where the offset amount from the corresponding nearest reference point is the same on the basis of a plurality of reference points. Means,
The item connected to the item determined not to convert the display format, the specific coordinates including the start point and the end point on the first screen of the item determined to be converted the display format by the determination unit, Specific coordinate conversion means for converting to the specific coordinates having the same offset amount from the nearest reference point corresponding to the first screen and the second screen, and the coordinates specified by the parameter of the item as the first screen And a fourth conversion processing means including a parameter conversion means for converting into coordinates on the previous second screen in accordance with a difference in size from the second screen.

Preferably, the plurality of reference points are defined as base points of a plurality of regions obtained by dividing the first screen and the second wide screen into n equal parts, respectively.
The third and fourth conversion processing means specify a divided area in the first screen that includes the reference coordinates and the specific coordinates, respectively, and the division in the second screen corresponding to the specified divided area Each region is specified, and coordinates at which the offset amounts from the base points of the divided regions specified on the first and second screens are equal to each other are determined as reference coordinates and specific coordinates on the second screen, respectively. Is done.

Moreover, the plant monitoring apparatus according to the present invention is:
A plant image file storing information of a display screen to be displayed on the first screen;
The image conversion having any of the above-described configurations for converting the information on the plant display screen stored in the plant image file into the information on the plant display screen displayed on the second screen different from the size of the first screen. Equipment,
And a drawing device for drawing the plant display screen on the second screen in accordance with the information on the plant display screen converted by the image conversion device.

  The plant monitoring device and the plant monitoring screen creation device are each stored in the plant screen file by the information on the plant display screen displayed on the second screen obtained by the image conversion device. It is preferable to further comprise means for rewriting information on the plant display screen displayed on the screen.

  According to the image conversion apparatus having the above-described configuration, for items such as symbol graphics and plant monitoring data on the display screen created for the first screen (square screen), the display position is changed as it is. It is displayed on a second screen (wide screen) having a different screen size. For example, for items such as line segments that connect a plurality of symbol graphics, the display format is converted and displayed on the second screen (wide screen) while maintaining a continuous relationship with the symbol graphics. .

  Accordingly, for example, a wide screen (first screen) having a different screen size is maintained without damaging the image of the display screen created for display on the square screen (first screen) S, and the plant monitoring data remains in the original easy-to-view state. 2 screen) W can be displayed. Therefore, existing software resources (information on the plant display screen) created for the first screen are effectively used, and the image is damaged in accordance with the second screen having a different size from the first screen. Display effectively.

  In addition, for all items of different types, the reference coordinates are converted by the same conversion procedure according to the difference in screen size, and according to the item type, the parameters of the item for each type are converted to the screen. The conversion process itself is simple because it is only converted into a parameter corresponding to the difference in size, and the image conversion process can be performed without imposing a large processing burden. Therefore, it can be easily incorporated into an existing image display apparatus, and existing software resources (such as a command sequence for constructing a display screen) that have been used can be used effectively.

  The same effect can be achieved in a plant monitoring apparatus configured with such an image conversion apparatus.

The figure which shows the rough processing function of the image conversion apparatus which concerns on this invention. The schematic block diagram of the plant monitoring apparatus which concerns on embodiment of this invention. The schematic block diagram of the plant monitoring screen creation apparatus which concerns on embodiment of this invention. The figure which shows the rough process sequence which shows schematic structure of the image conversion apparatus which concerns on embodiment of this invention. The figure which shows the coordinate position relationship between the square screen S and the wide screen W. The figure which shows the rough process sequence of the coordinate conversion process in an image converter. The figure which shows another embodiment of the process sequence of the coordinate transformation process in an image converter. The figure which shows typically the concept of the coordinate transformation process shown in FIG. The schematic block diagram of a plant monitoring apparatus and a plant monitoring screen creation apparatus. The figure which shows the example of figure definition information. The figure which shows the example of a display of the figure widened.

  Hereinafter, an image conversion apparatus according to an embodiment of the present invention, and a plant monitoring apparatus and a plant monitoring screen creation apparatus configured by including the image conversion apparatus will be described with reference to the drawings.

  The image conversion apparatus according to the present invention, for example, displays a plant display screen for a first screen created on the premise that it is displayed on a square screen (first screen) S having an aspect ratio of [4: 3]. It plays a role of displaying on a wide screen (second screen) W having an aspect ratio of [16: 9].

  FIG. 1 shows a schematic processing function (processing concept) of the image conversion apparatus according to the present invention. As shown in FIG. 1, this image conversion apparatus is a reference coordinate that is attribute information of a plurality of items 2a, 2b to 2n constituting a first display screen 1 displayed on a screen of a predetermined size (for example, a square screen). And the parameters are converted by using the reference coordinate conversion means 3 and the parameter conversion means 4, respectively, to obtain a second display screen 6 for displaying on a screen having a different size (for example, a wide screen).

  In particular, the reference coordinate conversion means 3 converts all of the plurality of different types of items 2a, 2b to 2n according to a predetermined conversion procedure in which the reference coordinates are determined according to the difference in screen size (screen size ratio 7). It has a function to do. On the other hand, the parameter conversion means 4 individually converts the parameters of the items 2a, 2b to 2n according to the difference in the screen size according to the conversion procedure determined for each type of the plurality of items. It has a function. A plurality of items 5a, 5b to 5n corresponding to the respective items 2a, 2b to 2n, each composed of reference coordinates and parameters converted through the reference coordinate conversion means 3 and the parameter conversion means 4, respectively, are displayed on the screen. It is characterized in that it is obtained as the second display screen 6 having a different size.

  In particular, in the parameter conversion means 4, for an item for which it is appropriate not to change the display format even if the screen size is different, the parameter of the item is maintained according to the item type, for example, the relative positional relationship with respect to the reference coordinates is maintained Convert in the state. In addition, for an item that does not have a problem even if the display format is changed according to the difference in screen size, the parameter of the item is converted according to, for example, the screen size ratio according to the type of the item. Specifically, the size of the item is converted according to the size ratio with the second screen for either the X axis or the Y axis while maintaining the aspect ratio of the item on the first screen.

  Here, the image conversion apparatus 40 that executes the image conversion processing basically as described above will be described. The image conversion apparatus 40 according to the present invention plays a role of converting, for example, coordinate data for specifying display positions and sizes of a plurality of items constituting the plant display screen into coordinate data on the wide screen W. The image conversion device 40 is incorporated in the plant monitoring device 10 or the plant monitoring screen creation device 20 as shown in FIGS. 2 and 3, for example. In addition, although the case where the plant display screen for the square screen S described above is displayed on the wide screen W is described as an example here, it is needless to say that the present invention is not necessarily limited to this example.

  Here, the plurality of items constituting the plant display screen are figures such as squares, circles, ellipses, etc. representing various facilities constituting the plant as symbols, line segments connecting the symbolized facilities, and plant monitoring. It consists of data. As described above with reference to FIG. 10, these plural types of items are graphics made up of line segments, rectangles, solids, ellipses, etc. for forming a fixed image symbolizing various facilities constituting the plant. Item information (definition information) indicating the type of the item, reference coordinates for specifying the display position of the item, and parameters for specifying the display form. This parameter includes coordinate data that specifies the size and aspect ratio of the item.

  Specifically, referring to FIG. 10, the item [No. 1] has an item (graphic type) of [Line], and its display form is coordinates (x1, y1), (x2,) on the display screen. y2), (x3, y3), and (xn, yn) are connected in order, and the reference coordinates (start point coordinates; x1, y1) of the item and its parameters (x2, y2), (x3, y3) , (xn, yn) are defined as attribute information. The item [No. 4] has an item (graphic type) of [ellipse], and its display form is centered on coordinates (xo, yo) on the display screen, with coordinates (x1, y1), (x2, Assuming that the shape of the major axis and the minor axis is specified by y2), the reference coordinates (xo, yo) and parameters (x1, y1), (x2, y2) of the item are defined as attribute information. Is done.

  When the item indicates plant monitoring data, the attribute information includes, for example, coordinate data (reference coordinates and parameters) for specifying the display position of the plant monitoring data and the size of the display area on the display screen, It is given as attribute information of the item as information specifying the type (content) of the plant monitoring data to be displayed in the display area and its display format. As will be described later, when a plurality of items constitute one group associated with each other, group information indicating the group is added as attribute information of the item.

  The plant monitoring device 10 and the plant monitoring screen creation device 20 are basically configured in the same manner as the conventional system shown in FIG. Accordingly, the same components are denoted by the same reference numerals, and description thereof is omitted. Needless to say, if one of the plant monitoring device 10 and the plant monitoring screen creation device 20 includes the image conversion device 40, the image conversion device 40 need not be provided on the other side.

  Now, the image conversion device 40 incorporated in one of the plant monitoring device 10 and the plant monitoring screen creation device 20 basically constitutes a plant display screen created on the assumption that it is displayed on the square screen S, for example. Information for drawing a plurality of items (graphic information and plant monitoring data), that is, the above-described command sequence A, B, C is read from the plant screen file 11 (23), and these command sequences A, B , C are converted into command sequences a, b, c for drawing on the wide screen W, and the stored information of the plant screen file 11 (23) is rewritten.

In particular, the image conversion apparatus 40 includes a processing function including the following [1] determination means, [2] first conversion processing means, and [3] second conversion processing means.
[1] Judgment means

This determination means determines whether or not to convert the display format of the item according to the attribute information of a plurality of items constituting the plant display screen. Specifically, the graphic elements (items) constituting the line segment, ellipse, etc. described above are not widened (display format is not converted) represented by, for example, ellipses, rectangles, etc., which are symbolized plant components. The element is classified into a graphic element that is widened (converts the display format) and includes line segments connecting a plurality of symbols. The graphic elements (items) that are not widened include the above-described display format of plant monitoring data.
[2] First conversion processing means

This first conversion processing means is a coordinate position relationship in which items that are not widened, specifically, graphic elements other than line segments and plant monitoring data are associated in advance between the square screen S and the wide screen W. And a reference coordinate conversion means for converting reference coordinates for specifying the display position of the graphic element and the plant monitoring data into reference coordinates on the wide screen W, respectively. Further, the first conversion processing means maintains a relative coordinate position relationship between the reference coordinate on the square screen S and a parameter indicating coordinates other than the reference coordinate of the graphic element for determining the size of the graphic element. Then, parameter conversion means for converting each of the converted reference coordinates in the second screen into coordinates based on the reference is provided.
[3] Second conversion processing means

  The second conversion processing means is configured to make an item to be widened, specifically a line segment, specific coordinates on the first screen of the graphic element connected to the graphic element if the line is not widened, that is, the line. Specific coordinate conversion means is provided for converting the start point coordinates and end point coordinates of minutes into specific coordinates on the second screen based on the coordinate position relationship. The specific coordinate conversion means corresponds to the reference coordinate conversion means.

  In addition, the second conversion processing means may use a parameter other than the specific coordinates for determining the size of the line segment, for example, a parameter including a break point coordinate, as a difference in size between the first screen and the second screen. Parameter conversion means for converting to the coordinates (terminal coordinates) in the previous second screen according to the above. The parameter conversion means in the second conversion processing means and the parameter conversion means in the first conversion processing means respectively convert the parameter of the item according to the item type as described above. This is realized as parameter conversion means associated with each.

  Each of these means (processing functions) is realized, for example, as a software program whose schematic processing procedure is shown in FIG. Specifically, the image conversion processing in the image conversion apparatus 40 is performed by firstly executing the above-described command sequences A and B for drawing a plurality of figures forming the plant display screen from the plant screen file 11 (23), and the plant. The above-described command sequence C for displaying the monitoring data is read in order <Step S1>.

  Whether or not the drawing data of the item indicated by the command is a figure that is not suitable for widening according to the definition information (see FIG. 10) included in each command constituting each of the command sequences A, B, and C. <Classification means; Step S2>. Specifically, the drawing data is a line segment that does not cause unnaturalness even when widened, or a graphic element whose visual image changes with widening, specifically rectangular or circular It is determined whether it is a figure that symbolizes the constituent elements of the plant or information that indicates the display position of the plant monitoring data. If the drawing data is a line segment, it is determined that it is a graphic element to be widened <step S3>. Otherwise, it is determined that it is a graphic element that is not to be widened < Step S4>.

  For the graphic elements that are not widened, the above-described first conversion processing means is executed <step S5>. Then, based on the coordinate position relationship associated in advance between the square screen S and the wide screen W, the reference coordinates for specifying the reference coordinates of the graphic elements and the display position of the plant monitoring data are set on the wide screen. Each is converted into a reference coordinate (reference coordinate conversion means). The reference coordinates are, for example, center position coordinates in a circle, position coordinates of a specific corner in a rectangle, position coordinates of a specific corner of a display area (display frame) indicating the display position of plant monitoring data, and the like. It means the coordinates used as a reference in drawing and displaying graphics and plant monitoring data.

  Further, for coordinates other than the reference coordinates of the graphic element and the plant monitoring data, the size of the graphic element and the coordinates for determining the display area of the plant monitoring data, the reference coordinates and the respective coordinates on the square screen S Based on the relative coordinate positional relationship, the coordinate is maintained as the coordinate for maintaining the relative coordinate positional relationship with reference to the converted reference coordinate on the second screen (parameter converting means).

  On the other hand, for the graphic element to be widened, that is, the line segment, the above-described second conversion processing means is executed <step S6>. Then, the specific coordinates connected to the graphic indicating the plant components described above as symbols are specified as the start point coordinates and end point coordinates of the line segment, and these start point coordinates and end point coordinates are determined between the square screen S and the wide screen W. Based on the coordinate position relationship previously associated with each other, the coordinates are converted into the start point coordinates and the end point coordinates on the wide screen W (specific coordinate conversion means). Further, for coordinates other than the start point coordinates and end point coordinates of the line segment that determine the display format of the line segment, for example, break point coordinates, etc., according to the size difference between the square screen S and the wide screen W, Conversion into coordinates on the wide screen W (parameter conversion means). By the way, the processing of the specific coordinate conversion means can be processed by the reference coordinate conversion means if the start point coordinates are the reference coordinates, and can be processed by the parameter conversion means if the end point coordinates are the parameters (end coordinates). it can. At this time, when the display format is converted according to the difference in the image size, the parameter conversion means performs the conversion by the same conversion procedure as the reference coordinates. On the other hand, when the display format is not converted according to the difference in image size, the parameter conversion means adds the end coordinates by adding the relative distance from the reference coordinates of the first screen to the reference coordinates of the second screen, for example. Can be sought. Thus, by configuring the parameter conversion means so that the parameters can be converted by a procedure different from the conversion procedure of the reference coordinate conversion means, it is possible to flexibly cope with the difference in the graphic display format.

  When the coordinate conversion of each item is finished as described above, the new coordinate data obtained by the coordinate conversion is used as the commands a, b, c indicating the drawing data for the wide screen W as the plant screen. The data in the file 11 (23) is rewritten <Step S7>. By repeating the above process for all the commands in the command sequence A, B, C stored in the plant screen file 11 (23), <Step S8>, from the square screen S to the wide screen W, Image conversion processing is realized.

  Here, the coordinate position relationship between the square screen S and the wide screen W will be briefly described. The square screen S and the wide screen W not only have different aspect ratios but also the number of horizontal dots (number of pixels). The composition ratio of the number of vertical dots (number of pixels) is also different. In general, for example, the square screen S is composed of (768 × 1280) dots, and the wide screen W is composed of (1000 × 1920).

Therefore, between the coordinates (x, y) of the square screen S and the coordinates (X, Y) of the wide screen W, basically, as shown in FIG.
X = Ax + B, Y = Cy + D
There is a relationship. A is a horizontal magnification coefficient (= 1000 / 768≈1.3), B is a horizontal offset value, C is a vertical magnification coefficient (= 1920/1280 = 1.5), and D is a vertical offset value.

Therefore, as shown in FIG. 5, when the coordinates (x1, y1) on the square screen S correspond to the coordinates (X1, Y1) on the wide screen W, the coordinates (x1, y1) are displaced by (w, h). The coordinates (X2, Y2) on the wide screen W corresponding to the (offset) coordinates (x2 = x1 + w, y2 = y1 + h) have an offset value (W, H) with respect to the coordinates (X1, Y1) as W = Aw, H = Ch
As shown as
X2 = X1 + Aw, Y2 = Y1 + Ch
Can be determined as

  Basically, in the image conversion processing from the square screen S to the wide screen W executed based on the coordinate positional relationship described above, the item (graphic element) to be widened as described above in the image conversion device 40 according to the present invention. And items that are not widened (graphic elements), for example, coordinate conversion processing is executed as shown in FIG. Specifically, it is determined whether or not the graphic element to be drawn is a widening target, that is, whether or not it is a line segment <step S11>. The above-described start point coordinates (xs, ys) and end point coordinates (xe, ye) are converted based on the coordinate position relationship, and the start point coordinates (Xs, Ys) and end point on the wide screen W are converted. The coordinates (Xe, Ye) are respectively obtained <step S12>. As a result, the line segment is rendered wide in accordance with the wide screen W and drawn.

  On the other hand, if the graphic element is not widened, it is determined whether the graphic element is grouped together with other graphic elements <step S13>. If it is an independent graphic element that is not grouped, the standard coordinates (xo, yo) of the graphic element on the square screen S are obtained, and the standard coordinates (xo, yo) are coordinated based on the coordinate positional relationship. Conversion is performed to convert the reference coordinates (Xo, Yo) on the wide screen W <step S14>.

  Then, for each coordinate (xn, yn) other than the reference coordinate (xo, yo) that determines the size of the graphic element on the square screen S, an offset value from the reference coordinate (xo, yo). (Δx = xn−xo, Δy = yn−yo) is obtained, and the offset value (Δx, Δy) is added to the reference coordinates (Xo, Yo) on the wide screen W, respectively, so that the coordinates on the wide screen W ( Xo + Δx, Yo + Δy) is obtained <step S15>. As a result, the graphic elements that are not widened only have their drawing positions on the wide screen W designated, and the graphic shape (size) on the original square screen S is maintained, that is, without being widened. Drawn.

  When the graphic elements that are not widened are grouped, the reference coordinates (xo, yo) on the square screen S of the graphic elements representing the group are obtained, and the reference coordinates (xo, yo) are obtained. Coordinate conversion is performed based on the coordinate position relationship to convert the reference coordinate (Xo, Yo) on the wide screen W <step S16>. Then, for each of the other coordinates (xn, yn) of the representative figure element, an offset value (Δx, Δy) from the reference coordinates (xo, yo) on the square screen S is obtained, respectively, and the offset value (Δx, y Δy) is added to the reference coordinates (Xo, Yo) on the wide screen W to obtain the coordinates (Xo + Δx, Yo + Δy) of the representative graphic element on the wide screen W (step S17).

  Similarly, for each of the coordinates (xm, ym) forming the other graphic elements included in the group, the offset value (Δx, Δy) of the representative graphic element from the original reference coordinates (xo, yo) Respectively, and adding the offset value (Δx, Δy) to the reference coordinates (Xo, Yo) of the representative graphic element on the wide screen W, respectively, the coordinates (Xo + Δx, (Yo + Δy) is obtained <step S18>. As a result, the plurality of graphic elements forming one group not to be widened are only designated by the display positions of the representative graphic elements on the wide screen W, and the positional relationship of the plurality of graphic elements on the original square screen S The figure is drawn with its figure shape maintained, that is, without being widened.

  Therefore, according to the coordinate conversion processing described above, the graphic elements each representing the plant's constituent equipment are changed to the wide screen by changing only the drawing position while maintaining the visual image without changing the graphic shape. W is displayed. Then, only the line segment connecting the graphics schematically showing these components is widened and displayed on the wide screen W. In addition, since the display area for displaying the plant monitoring data is also maintained in the size of the display area on the original square screen S only by changing the display position, the plant monitoring data displayed in the display area is displayed. There will be no inconveniences such as making the screen wider and difficult to read.

  By the way, the coordinate conversion process described above can be performed as follows. For example, FIG. 7 shows a schematic processing procedure of this coordinate conversion processing, and as shown in FIGS. 8A and 8B, the square screen S and the wide screen W are arranged in the horizontal direction. A plurality of divided areas are defined by dividing into n equal parts, and coordinate conversion of graphic elements is performed in the corresponding divided areas between the screens S and W. 8A and 8B show an example in which the square screen S and the wide screen W are each divided into four equal parts in the horizontal direction, but the number of divisions is not limited. The area may also be divided in the vertical direction of the square screen S and the wide screen W.

  This coordinate conversion process is generally executed by converting the reference coordinates of the graphic element based on a reference point defined as, for example, the left corner of each divided region. As shown in FIG. 8, in the example in which the square screen S and the wide screen W are equally divided into four, the reference point (xref, yref) of each divided area on the square screen S has coordinates (0, 0), (320 , 0), (640, 0), (960, 0) as dot positions. Further, the reference point (Xref, Yref) of each divided area on the wide screen W is given as each dot position of coordinates (0,0), (480,0), (960,0), (1340,0). .

  Then, the reference coordinates (xo, yo) for specifying the non-wide graphic elements on the square screen S and the display position of the plant monitoring data are set to the nearest reference point, preferably the reference point of the divided area including the graphic element. It is obtained as an offset value (Δx, Δy) from (xref, yref). In the corresponding divided area of the wide screen W, the wide screen is defined as a position where the offset value (ΔX, ΔY) from the reference point (Xref, Yref) is equal to the offset value (Δx, Δy) in the square screen S. By determining the reference coordinates (Xo, Yo) in W, the coordinate conversion is performed.

  That is, in this coordinate conversion processing, as shown in FIG. 7, it is first determined whether or not the graphic element is a line segment to be widened <step S21>. If the graphic element is a graphic element other than the line segment that forms a graphic that schematically represents the plant component, or coordinate information that indicates the display position of the plant monitoring data, the graphic element is displayed on the square screen S. A divided area including the reference coordinates (x0, yo) is determined <step S22>, and a reference point (xref, yref) of the determined divided area is determined <step S23>.

  Next, offset values (Δx = xk−xref, Δy = yk−yref) from a reference point (xref, yref) of the divided area in the square screen S of a plurality of coordinates (xk, yk) specifying the shape of the graphic element ) Are calculated <step S24>. Then, the calculated offset values (Δx, Δy) are respectively added to the reference points (Xref, Yref) of the corresponding divided areas on the wide screen W to obtain the coordinates (Xk, Yk) of the graphic elements on the wide screen W. Each is determined as (Xref + Δx, Yref + Δy) <Step S25>.

  Each coordinate of the graphic element that is not widened by the above processing is based on the reference point (Xref, Yref) of the corresponding divided area on the wide screen W, and the offset value (Δx, Δy) from the reference point (Xref, Yref). ) Are converted as added coordinates. Therefore, the graphic element is displayed in the corresponding divided area of the wide screen W while the graphic shape displayed on the square screen S is maintained.

  On the other hand, when the graphic element is a line segment to be widened, the start point coordinates and the end point coordinates are independently coordinate-converted. Specifically, first, a divided area including the start point coordinates (xs, ys) of the line segment on the square screen S is determined <step S26>, and a reference point (xref, yref) of the determined divided area is determined. <Step S27>.

  Next, an offset value (Δx = xs−xref, Δy = ys−yref) from the reference point (xref, yref) of the divided area on the square screen S of the start point coordinates (xs, ys) is calculated respectively <step S28 > The calculated offset value (Δx, Δy) is added to the reference point (Xref, Yref) of the corresponding divided area on the wide screen W, and the start point coordinate (Xs, Ys) on the wide screen W is (Xref + Δx) , Yref + Δy), respectively (step S29).

  Similarly, a divided area including the end point coordinates (xe, ye) of the line segment on the square screen S is determined <step S30>, and a reference point (xref, yref) of the determined divided area is determined < Step S31>. Then, an offset value (Δx = xe−xref, Δy = ye−yref) from the reference point (xref, yref) of the divided area on the square screen S of the end point coordinates (xe, ye) is calculated respectively <step S32 > The calculated offset value (Δx, Δy) is added to the reference point (Xref, Yref) of the corresponding divided area on the wide screen W, and the end point coordinate (Xe, Ye) on the wide screen W is (Xref + Δx) , Yref + Δy), respectively (step S33).

  According to such coordinate conversion processing, when a line segment extends over a plurality of divided areas, the start point coordinates (xs, ys) and the end point coordinates (xe, ye) of the line segment correspond to the corresponding divided areas of the wide screen W. Since the start point coordinates (Xs, Ys) and the end point coordinates (Xe, Ye) are respectively determined in FIG. The line segment is generally defined as being connected to a plant component composed of a graphic element such as a circle or a rectangle. Therefore, the start point coordinates (Xs, Ys) of the line segment converted as described above are used. The end point coordinates (Xe, Xe) maintain the absolute positional relationship with the graphic element whose coordinates are converted in steps S21 to S25 described above.

  When the start point coordinates (xs, ys) and the end point coordinates (xe, ye) are included in the same divided area, the widening is basically not performed. However, when breakpoint coordinates indicating the midpoint of the line segment are included in other divided areas, these breakpoint coordinates are coordinate-converted according to the size of the wide screen W. Accordingly, the line segment is widened as a whole including the break point.

  In the above processing, the reference coordinate conversion means can execute steps S26 to S29, and the parameter conversion means can execute steps S30 to S33. For graphic elements that are not widened, instead of the processing of steps S22 to S25, the reference coordinate conversion means first executes steps S26 to S29, and then the parameter conversion means uses the start point coordinates calculated in step S29 as a reference. As the coordinates, an offset value from the reference coordinates on the square screen S may be added to this to calculate each coordinate on the wide screen W. In this way, the reference coordinate conversion means can perform the conversion process in the same procedure regardless of whether or not to widen (item type). At this time, the parameter conversion means performs the same processing as the reference coordinate conversion means when widening, and different processing such as maintaining the size and shape of the figure when not widening. In addition, with respect to figures that are connected to each other before conversion, the reference coordinates or end coordinates are set to the same coordinates, and the conversion procedure of the reference coordinates is the same, so that the connection state of the figures before and after conversion can be maintained arbitrarily. The size can be converted.

  With the above processing, the graphic elements representing the plant components as symbols are displayed on the wide screen W while maintaining the original graphic shape only by changing the display position, and only the line segments are widened. The converted plant display screen will be displayed. Accordingly, as in the case where the coordinate conversion process described above is executed, the graphic elements each symbolizing the plant component equipment can be displayed on the wide screen W without changing the graphic shape. You can keep the image. And since the graphic element is only changed in the display position on the wide screen W, there is an effect that it can be widened without impairing the image as the plant display screen.

  Similarly to these symbolized graphic elements, the display area for displaying the plant monitoring data is set on the wide screen W while maintaining the size of the display screen area in the square screen S. Therefore, the plant monitoring data does not become difficult to see even on the wide screen W, and the plant monitoring data can be accurately monitored. Therefore, according to the present apparatus that executes the image conversion processing described above, the plant display screen is effectively displayed on the wide screen W while effectively using the existing software resources (command sequence for constructing the plant display screen). It becomes possible.

  The present invention is not limited to the embodiment described above. For example, when the coordinate conversion process shown in FIG. 7 is executed, the display position of the graphic element with respect to the vertical direction (y direction) of the wide screen W is maintained as the display position of the square screen S. Therefore, for example, the processing based on the offset value from the reference point (xref, yref) of the divided area described above may be performed only in the horizontal direction (x direction) of the screen. In this case, for the coordinate conversion in the vertical direction (y direction), for example, the y coordinate of the reference coordinates (xo, yo) of the graphic element is converted according to the dot composition ratio between the square screen S and the wide screen W, and the wide The reference coordinates (Xo, Yo) on the screen W are shifted in the vertical direction. If each coordinate of the graphic element is determined based on the reference coordinates (Xo, Yo) on the wide screen W shifted in the vertical direction, the graphic element is displayed at a position corresponding to the number of dot components in the vertical direction. It becomes possible.

  Further, the enlargement ratio of the graphic elements on the wide screen W is determined according to the dot composition ratio in the vertical direction between the square screen S and the wide screen W, and the display position of each graphic element is determined based on the reference coordinates (under this enlargement ratio). It is also possible to make a determination based on xo, yo). In this case as well, the coordinate conversion shown in FIG. 6 or FIG. 7 may be performed after classifying into graphic elements to be widened and graphic elements not to be widened as described above.

  Further, the square screen S and the wide screen W are equally divided vertically and horizontally in a grid pattern, and the area where the graphic element is included is determined, and the reference point of the divided area described with reference to FIG. 8 is used as a base. It is also possible to execute a coordinate conversion process based on the offset value. Furthermore, it is of course possible to incorporate the coordinate conversion device 40 into the plant monitoring screen creation device 20. In addition, the present invention can be variously modified and implemented without departing from the scope of the invention.

2a, 2b, 2n items (including reference coordinates and parameters)
3 Reference coordinate conversion means 4 Parameter conversion means 10 Plant monitoring device 11 Plant screen file 12 Fixed image drawing device 13 Variable image drawing device 14 Data display device 20 Plant monitoring screen creation device 21 Coordinate / graphic definition input device 22 Image command conversion device 23 Plant screen file 30 Display 40 Image converter S Square screen W Wide screen

Claims (7)

An image conversion device that converts an item displayed on a screen of a predetermined size based on reference coordinates and a predetermined parameter for a screen having a different screen size,
The item is composed of a plurality of items of different types,
Reference coordinate conversion means for converting the reference coordinates by the same conversion procedure according to the difference in the screen size for all of the plurality of items having different types,
An image conversion apparatus comprising: parameter conversion means for converting the parameter according to a difference in the screen size for each of a plurality of item types having different types.   The image conversion apparatus according to claim 1, wherein the parameter conversion unit can convert the parameter by a procedure different from the conversion procedure of the reference coordinate conversion unit. A determination unit for determining whether to convert the display format of the item according to the attribute information of the item;
The parameter is information for specifying the aspect ratio of the item, and the parameter conversion means determines the aspect ratio of the item determined to convert the display format by the determination means based on the aspect ratio of the second screen size. 3. The image conversion according to claim 1, wherein an aspect ratio of the item determined and determined by the determination unit not to convert a display format is determined based on an aspect ratio of the first screen size. apparatus. A determination unit for determining whether to convert the display format of the item according to the attribute information of the item;
The parameter is the terminal coordinates of the item,
The reference coordinate conversion means is based on a plurality of reference points in which reference coordinates on the first screen of all items are determined in advance in association between the first screen and the second screen. As the position where the offset amount from the nearest reference point corresponding to the first screen and the second screen is equal, the respective coordinates are converted into the reference coordinates on the second screen,
The parameter conversion means preliminarily determines the terminal coordinates on the first screen of the item determined not to convert the display format by the determination means between the first screen and the second screen. Based on a plurality of reference points that are defined in association with each other, the coordinates are converted into terminal coordinates on the second screen as positions where the offset amounts from the corresponding nearest reference points are equal on the first screen and the second screen. On the other hand, the end point coordinates on the first screen of the item determined to convert the display format by the determination unit are changed to the second second according to the size difference between the first screen and the second screen. The image conversion apparatus according to claim 1, wherein the image conversion apparatus converts the coordinates into coordinates on the screen. The item that does not convert the display format includes a plurality of items grouped as one group,
The reference coordinate conversion means converts the reference coordinates for specifying the display position of one item included in the group in units of the group into reference coordinates on the second screen, and uses the converted reference coordinates as a reference for the item. And parameters of other items included in the group are respectively converted as parameters on the second screen while maintaining a relative coordinate position relationship with the reference coordinates of the one item on the first screen. The image conversion apparatus according to claim 4, which is a device. A plant image file storing information of a plant display screen to be displayed on the first screen;
The information on the plant display screen stored in the plant image file is converted into information on a plant display screen to be displayed on a second screen different from the size of the first screen. The described image conversion device;
A plant monitoring apparatus comprising: a drawing device that draws a plant display screen on the second screen in accordance with the information on the plant display screen converted by the image conversion device. In the plant monitoring device according to claim 6,
The plant monitoring apparatus further comprising means for rewriting the information on the plant display screen stored in the plant screen file with the information on the plant display screen for the second screen obtained by the image conversion apparatus. .