JPS6170586A - Graphic display unit - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a graphic display device for controlling and monitoring a process by displaying a graphical representation of the entire ground and its control flow. The present invention relates to a graphic display device with improved performance.

[Technical background of the invention]

A process control device using a computer is equipped with a process console equipped with a CRT display device 1 shown in FIG. The entire process control target (f runt) is graphically displayed, and the control status of each process, such as the controlled amount, manipulated variable, occurrence of abnormality, etc. There is something to monitor.

By the way, the size of the process flow diagram displayed on the display screen of the CRT display device 1 differs depending on the size of the process control target.

Therefore, the entire FCX process flow diagram may not be displayed on one CRT display screen. FIG. 6 is a schematic diagram for explaining a display method called a 4x screen, and this 4x screen 2 is a screen 30 displayed on a CRT display screen.
It has four times the size and four times the amount of information of the dinotal image information to be displayed on the CRT display screen. Therefore, it is displayed using this 4x screen 2 display method! When a process is controlled and monitored using a process flow diagram, it is performed by operating a scroll operation key (FIG. 7) provided on the operator operation section 4 of the process console. That is, for example, if you operate scroll key 5, 4
Display position 3 of the CRT display screen on double screen 2 is indicated by the arrow (
b) move in the direction. And display position 3 is 4 times screen 2
When the user moves to the end of , the display position 3 is moved by operating the scroll key 6 in the direction opposite to the direction of movement.

[Problems with background technology]

Therefore, in order to constantly control and monitor the process control target, the operator must constantly operate the scroll operation key. Therefore, in order to quickly detect the occurrence of an abnormal condition by operating the operator, it is necessary to constantly operate the scroll operation key to monitor the entire process flow diagram, which makes operating the operator difficult.

[Purpose of the invention]

The present invention has been made based on the above circumstances, and its purpose is to further improve the operability of the operator,
An object of the present invention is to provide a graphic display device that allows easy control and monitoring of a process control target.

[Summary of the invention]

The present invention provides an image t displayed on a graphic display screen.
- Process 70 corresponding to an image multiplied in size in the X-axis direction and the Y-axis direction, respectively - When the dinotal image information shown in the figure is stored in advance and displayed on the graphic display screen, the dinotal image information is The graphic display device reads information corresponding to one pixel of the graphic display screen by sequentially moving by a predetermined number of pixels in the direction and the Y-axis direction, and displays the information while circulating it at a constant cycle on the process flow diagram.

[Embodiments of the invention]

Hereinafter, an embodiment of a graphic display device according to the present invention will be described with reference to FIGS. 1 to 3. FIG. 1 is a block diagram of a graphic display device. This graphic display device is a process console equipped with a CRT display device as shown in FIG.
Central processing unit (hereinafter abbreviated as CPU) JOK (memory 12, input/output) via internal path 11
(Ilo) device 13 is connected and this I10 device 1
3, a scroll operation key 14 and a CRT display device 15 as shown in FIG. 7 are connected.

In the memory 12, f isotal image information of a process flow diagram corresponding to an image size four times that of the image projected on the CRT display screen of the CRT display device 15 is stored in the memory 12, indicating the position of each pixel of this dinotal image information, that is, the X axis and It is stored in advance together with positional information W (X, Y) represented by the Y axis. To specifically explain the digital image information, this digital image information is schematically shown in FIGS. 2(b) and 2(c). That is, if the size K of the image projected on the CRT display screen is shown in Figure 2 (,), the digital image information is a horizontally elongated image that is enlarged four times in the X-axis direction [Figure 2 (0)] , or a vertically elongated image [Figure 2 (C)] that is enlarged four times in the KOY axis direction.For example, a process flow diagram for controlling and monitoring a ship is applied to the horizontally elongated digital image information, and For example, process flow diagrams for controlling and monitoring high-rise buildings are applied to vertically elongated digital image information.

Now, the CPU 1o has the following functions. That is, from the digital image information stored in the memory 12, information corresponding to the image size displayed on the CRT display screen is transferred at predetermined time intervals, for example, in the case of digital image information shown in FIG. The digital image information shown in FIG. 2(C) is read out by moving a predetermined number of pixels at a time, and the X-Y axis position of the digital image information to be read. , the X-Y position Q of the upper left corner of the read digital image information is one end of the digital image information, that is, (x,, yn)
The function is to determine that the position has been reached and move the next x-y axis position to be read to the other end (Xs-Yo). In addition, the CPU
10 is a movement key 14-1 among the scroll operation keys.
~14-8 and FAST key J4-9 at the same time, the movement speed of Process 70-Figure displayed on the CRT display screen will be twice the normal speed. Furthermore, when an abnormality occurs in a process, it has a function to display this information at the top of the CRT display screen.

Next, the operation of the apparatus constructed as described above will be explained according to the circulation display flowchart shown in FIG. When the start key of the operator operation section 4 of the process console shown in FIG. 5 is operated, the CPU
An operation start signal is sent to jO. Upon receiving this operation start signal, the CPU J o executes the second operation stored in the memory 12.
Information corresponding to the image of the CR'r display screen at the initially set X-Yi position (x, y y, ) is read from the digital image information as shown in Figures (b) and (c). For example, in the case of the digital image information shown in FIG. 2(b), the information in the shaded area a is read, and in the case of the digital image information shown in FIG. 2(,), the information in the shaded area is read. be read. Note that the x-Y reading position (Xo a Yo) of the digital image information that is initially set is such that the digital image information at the desired position can be read by changing the positions of the X axis and the Y axis, respectively. .

This read digital image information is processed internally by the command of the CPU JO. CR via force device 13
7 is sent to the display device 15. As a result, on the CRT display screen of the CR7 display device 15, for example, in the case of digital image information shown in FIG. 2(b), the leftmost portion of the process flow diagram divided into quarters is displayed. Also the second
If the digital image information is shown in Figure (C), the topmost part of the graphic body of the process flow diagram will be displayed. Next, the CPU
J O is the currently displayed gases 7C'-rl
In the digital image information shown in FIG. 2(c), it is determined whether Jf)ne is at the bottom (X., Y.). If it is not the oldest part (lowest part), then CPU 10 moves to a new X-Y position by a predetermined number of pixels in the X-axis direction, that is, C
Xo+Δx, yo) is calculated and obtained, and this (X.+Δx,
Digital image information corresponding to one image of the CRT display screen at the position ) is read. Then, this digital image information is sent to the CRT display device [125], and as a result, the CR7 display device 15 displays a process flow diagram shifted by a predetermined number of pixels to the right from the previously displayed process flow diagram. The above operations are performed at predetermined intervals, and the position displayed on the CRT display screen moves from the left side to the right side as shown in FIG. 2(b). Then, the displayed X-Y position is the rightmost position (x,,
y,), CP010' changes the display position to (X.,
Yo), and the display position is sequentially moved again to display the process 70-diagram. In the case of the digital image information shown in FIG. 2(b), the display position is set to the uppermost part (Xo +
Move from the bottom part (Xo, Yn) sequentially towards the bottom part (Xo, Yn), move it to the top part (Xo y Yo) when it reaches the bottom part (Xo, Yn), and move it sequentially towards the bottom part again .

Next, the operation when an abnormality occurs in a process when the Zoroses flow diagram is displayed by sequentially moving its display position as described above will be explained. If an abnormality occurs in the displayed process flow diagram, the abnormality will be notified by blinking the part of the Zoroses flow diagram on the CRT display screen that corresponds to the abnormality location, and , an abnormality alarm provided elsewhere will sound. Therefore, the oscillator only has to operate the operating section to stop the movement of the Zorothes flow diagram 1.

In addition, if an abnormality occurs in a location that is not displayed on the CRT display screen, the abnormality occurrence indicator light section [Fig. 5, R], which indicates the occurrence of this abnormality and is displayed at the top of the CRT display screen, will blink. It is done equally. This abnormality occurrence display Rf: The operator can determine the location of the abnormality while looking at the moving and displayed Zoroses flow diagram, or press any of the flow keys 14-1 to 14-8 and the 7 earth key 14-9. At the same time, the movement and display speed of the Zorothes flow diagram is doubled to quickly identify the location of the abnormality.

As described above, in the apparatus of the present invention, the digital image information of Zorothes 70, which corresponds to an image four times as large as one image on the CRT display screen, is stored in advance in the memory 12, and from this digital image information, two figures ( The horizontally long digital image information shown in b) is read by moving in the X-axis direction, and the vertically long digital image information shown in FIG. Since the display position is sequentially moved and displayed, the operator can view the entire process flow diagram with a single operation of the operator operation unit 4, and can control and monitor the process by using the moving Zorose flow.

In addition, since the displayed position of the Zoroses flow diagram moves, even when an abnormality occurs, the operator can determine the location of the abnormality without operating it, and even if you operate it, you can use the scroll keys 14-1 to 14-8 to This simplifies the operator's operations by simply operating the key 14-9.This allows a quick response to the occurrence of an abnormality in the process.

Also, the display time of each screen and the X-
By changing the settings of the movement interval ΔX and ΔY (number of pixels) of the Y position, the time required to display the entire process flow diagram can be changed, allowing the display to be cycled through the time necessary for controlling and monitoring the entire process. I can do it.

Note that the present invention is not limited to the above embodiment. In the above embodiment, a case has been described in which the present invention is applied to a horizontally long process flow diagram and a vertically long process flow diagram, but the present invention can also be applied to a quadruple screen as shown in FIG. 4, for example.

In other words, the X-Y position of the portion of the screen to be displayed may be calculated so as to be moved in the direction of the arrow (b).

Further, the apparatus of the present invention can be applied to multiple screens instead of a quadruple screen by calculating bt-) for all x-y positions in the display order in the same way as for the quadruple screen.

〔Effect of the invention〕

According to the present invention, a digital image of a process flow diagram corresponding to an image multiple times the size of the graphic display screen is stored in advance, and the graphic display screen is moved from this digital image information in the X-axis and Y-axis directions. Since the display position of the Zorothes flow diagram is sequentially moved by reading information equivalent to one screen, it is possible to provide a graphic display device that improves operator operability and allows easy control and monitoring of process control targets. .

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of a graphic display device according to the present invention, and FIGS. 2(a), (b), and (c) are schematic diagrams for explaining a 1x screen, and Figures (,) are diagrams showing the image size of a CRT display screen, Figure 2 (b) is a diagram showing a horizontally long 4 times screen, Figure 2 (C) is a diagram showing a vertically long 4 times screen, and Figure 3 is a diagram showing the image size of a CRT display screen. The figures are a circulation display flowchart of the device shown in FIG. 1, FIG. 4 is a diagram for explaining a modification of the device of the present invention, FIG. 5 is an external view of the process console, and FIG.
This figure is a diagram for explaining a conventional display method on a quadruple screen, and FIG. 7 is an external view of the scroll operation key of the process console shown in FIG. 5. 10...CPU, 12...Memory, 14...Scroll operation key, I4-1 to 14-8...Movement key, 14-9...First key, 15...CRT display device . Applicant's Representative Patent Attorney Takehiko Suzue Figure 1 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7

Claims (3)

[Claims] (1) In a graphic display device that graphically displays the control flow of a process control device and performs process control and monitoring, the image displayed on the graphic display screen of this graphic display device is displayed in the X-axis direction and the Y-axis direction. a storage means for pre-storing digital image information of a control flow diagram of the process control device, each corresponding to an image multiplied in size by a plurality of times; and a storage means for displaying information on the graphic display screen from the digital image information stored in the storage means. Information equivalent to the size of the image,
image reading means that sequentially moves and reads a predetermined number of pixels in the X-axis direction and the Y-axis direction and sends the read digital image information to the graphic display device;
A graphic display device characterized in that the displayed portions of the control flow diagram are displayed while sequentially cyclically moving. (2) The storage means stores digital image information of a control flow diagram corresponding to an image whose size is multiple times the image displayed on the graphic display screen only in the X-axis direction or the Y-axis direction. The graphic display device described in (1). (3) The display reading means reads digital image information corresponding to the image size of the graphic display screen by sequentially moving only in the X-axis direction or the Y-axis direction by a predetermined number of pixels. graphic display device.