JPH04128877A - Crt display device - Google Patents

Abstract

PURPOSE:To quickly display the circumference of an optional point on the screen of a whole system with the optional point as a center by the optional magnification of enlargement only by changing the position of a finger tip by deciding the center of display and the magnification of the enlargement based on the position of a finger with respect to a display surface in the monitoring device of a plant system. CONSTITUTION:The position of the finger 14 with respect to a CRT screen when the instruction is required, that means, coordinates X, Y and Z are detected by a finger position detection part 1. It is decided by a display center calculation part 2 based on the coordinates X and Y which part of the screen of the whole system is set as the center of the CRT display surface. Besides, the magnification of the enlargement given by the coordinate Z and the function of the magnification of the enlargement P=f(z) is obtained by an enlargement magnification calculation part 3. Based on the obtained center of the display and the obtained magnification of the enlargement, the display screen is edited from the screen of the whole system by a screen editing part 4 and the display screen is displayed and outputted by a display output part 5.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Industrial Application) The present invention relates to a CRT display device used for monitoring a plant system.

(Prior art) Conventionally, CRT displays of complex plant systems where the entire system cannot fit on one display screen have been performed using a screen splitting method or a scrolling method. The screen is divided into multiple screens and the screen that includes the part you want to see is selectively displayed.The scrolling method is where if the display part is inside the window frame, the window frame is moved to display the part you want to see. .

(Problems to be Solved by the Invention) The conventional screen splitting method has the disadvantage that each screen is fixed, and when a desired portion is spread across multiple screens, it cannot be displayed on a single CRT.

Furthermore, in the scrolling method, although it is possible to change the display center position using the scroll function, it is necessary to scroll to find the part you want to see, which has the disadvantage that it takes a lot of time and effort when the entire system is large and complicated.

In addition, since the display magnification of the screen is fixed in both of these methods, the system can be displayed according to the observer's display purpose, such as displaying a wider range or displaying a narrower range in detail. I couldn't. An object of the present invention is to provide a CRT display device that can quickly display a desired part of the entire system.

[Structure of the invention]

(Means for Solving the Problems) The present invention provides a finger position detection unit that detects the position of a finger on a display surface of a CRT display, and a finger position detection unit that detects the position of a finger on a display surface of a CRT display. a display center calculation unit that uses the X and Y coordinates of
A screen editing section edits the screen in the display range from the original screen at the display center determined by the display center calculation section and an enlargement magnification determined by the magnification calculation section; This is a CRT display device equipped with a display output section for displaying images.

(Function) In the CRT display device of the present invention, in the finger position detection section,
The coordinate position of the CRT display surface and the fingertip is detected, and the display center calculation section calculates the display center of the entire system that should be displayed at the center of the CRT display surface from the detected coordinate position, and the enlargement magnification calculation section calculates the display center of the entire system that should be displayed at the center of the CRT display surface. The magnification factor for the entire system screen is calculated from the coordinate position, and the screen editing section edits the display screen from the entire system screen based on the determined display center and magnification factor, and outputs it for display from the display output section.

(Example) Next, the present invention will be explained in detail. Figure 1 shows a finger position detection unit 1 that detects the position of a finger on the display surface of a CRT display, and displays the X and Y coordinates of the finger when the horizontal axis is the X axis and the vertical axis is the Y axis on the display surface. a display center calculation section 2 that calculates the enlargement magnification of the original screen according to the vertical distance from the fingertip to the display surface; The screen editing section 4 includes a screen editing section 4 that edits the screen in the display range from the original screen with the enlargement magnification determined by the enlargement magnification calculation section 3, and a display output section 5 that displays the results edited by the screen editing section on a CRT display. 6 shows a CRT display device made up of The detection unit 1 detects the positional relationship between the CRT display surface and the finger.

Further, the display center calculating section 2 calculates where in the entire system the center position of the CRT screen is to be set.

The magnification calculation unit 3 calculates the magnification of the entire system screen of the display screen.

The screen editing section 4 edits the display screen from the overall system screen so that the display center position given by the display center calculation section 2 and the enlargement magnification given by the enlargement magnification calculation section 3 are achieved.

The display output unit 5 is for displaying and outputting the edited display screen.

Next, the operation of the CRT display device having such a configuration will be explained.

In FIG. 1, the finger position @ (X, Y, Z coordinates) with respect to the CRT screen at the time when a display request is made is detected by a finger position detecting section 1. The display center calculating section 2 determines where on the entire system screen the center of the CRT display surface should be located based on the x and y coordinates.

FIG. 2 is a perspective view showing the positional relationship between the CRT display surface and the fingertip, where 11 is the CRT display surface, 12 is the display range, 13 is the display center, and 14 is the movement of the finger.

In addition, the magnification calculation unit 3 calculates the magnification given by the two coordinates and the magnification function P=f(z) as shown in FIG. Based on this, the display screen is edited from the overall system screen.
The display output unit 5 outputs a display screen.

FIG. 4 is a front view showing an example of the display screen.

〔Effect of the invention〕

According to the present invention, by simply changing the position of the fingertip, it is possible to display the area around any point on the overall system screen at any magnification, making it possible to display the desired location extremely quickly. .

[Brief explanation of drawings]

Fig. 1 is a configuration diagram of a CRT display device showing an embodiment of the present invention, Fig. 2 is an explanatory diagram showing the positional relationship between the CRT display surface and the fingertip, and Fig. 3 is an enlarged view of the distance from the fingertip to the CRT display surface. FIG. 4, an explanatory diagram showing the relationship between magnifications, is a front view of a CRT display. 1...Finger position detection unit 2...Display center calculation unit 3...Enlargement magnification calculation unit 4...Screen editing unit 5.
・Display output department agent Patent attorney Norio Ogo

Claims (1)

[Claims] a finger position detection unit that detects the position of the finger relative to the display surface of the CRT display; and when the horizontal axis on the display surface is the X axis and the vertical axis is the Y axis, the X and Y coordinates of the finger are the center of display. a display center calculation section; an enlargement magnification calculation section that calculates an enlargement magnification of the original screen according to a vertical distance from a fingertip to the display surface;
a screen editing section that edits a screen in a display range from the original screen at the display center determined by the display center calculation section and an enlargement magnification determined by the enlargement magnification calculation section; A CRT display device comprising a display output section for displaying on the CRT display.