JP3183087B2 - Touch operation method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a touch operation method.

[0002]

2. Description of the Related Art As an input device for process control, there is an optical touch panel capable of inputting only by touching a screen with a finger. This is achieved by arranging a plurality (hundreds of pairs) of light-emitting elements and light-receiving elements facing each other in the horizontal and vertical directions of a CRT display screen, scanning these elements, and blocking the light path with a finger or the like. , Its coordinates are detected. For process control, high-speed response is required. In addition to the mode in which the entire screen of the CRT display is scanned, only the light emitting and light receiving element pairs corresponding to the places where the touch SW and the like are displayed on the screen are used. There is a mode to select and scan.

FIG. 4 is a block diagram showing an example of the prior art. The touch operation device shown in FIG. 4 includes m light emitting elements 11a for detecting X coordinates, a driver 12a for driving them, and m light receiving elements 14a.
, An amplifier 15a for amplifying the signal obtained by the photoelectric conversion, a light emitting element 11b composed of m light emitting elements for detecting the Y coordinate, and drivers 12b and m for driving these elements.
The light receiving elements 14b, the amplifiers 15b for amplifying the optically / electrically converted signals, and the operation of these are controlled based on the coordinate information of the SW received from the host computer 2. And a touch panel controller 10 for reporting to the host computer 2. FIG. 5 is a schematic view showing an example of a conventional use. The host computer 2 transmits the coordinate information of the touch SWa, the touch SWb, and the touch SWc simultaneously with the screen information, and the touch panel 1 temporarily stores the coordinate information in the memory 18. Next, in the touch panel 1, the pair of the light emitting element and the light receiving element for detecting the (X, Y) coordinates of the registered touch SW is driven for a preset time. That is, (X, Y) = (3, 3). (4.3). (P-1,
3). (P, 3). (M-2, n-2). (M-1, n
The pair of the light emitting element and the light receiving element at the coordinate of -2) is sequentially driven. If a finger touches the touch SWb, (X,
Y) = (P-1,3). Touch detection information corresponding to (P, 3) is reported from the CPU 7 to the host computer 2 via the communication control unit 19, and the scanning ends. (Since it is reported that the host computer 2 has touched the coordinates transmitted second, the host can recognize that the operator's instruction input is the touch SWb.)

In the prior art, the coordinates of the switch touched by the operator are detected, and the coordinates are returned to the personal computer. From the coordinates touched by the PC,
It was necessary to determine which switch on the monitor was pressing. For this reason, a switch determination program must be added to the device control software program, which has the disadvantage of increasing the program size and complicating the program. Further, there is a disadvantage that it takes time to determine the switch.

[0004]

[0005]

Means for Solving the Problems] Touch operation method of the present invention, setting the accuracy of (A) a touch detection unit
(B) a step of initializing the switch number.
(C) increasing the switch number, (D)
Displaying the switch i on the monitor, (E) display
Obtaining a switch coordinate range on the monitor,
(F) An array of 1 / accuracy of the coordinate value indicating the switch range
Setting a switch number i, (G) a registration switch
Returning to the above (C) if there is still a switch.

[0006]

Next, the present invention will be described in detail with reference to the drawings.

FIG. 1 is a system configuration diagram showing an embodiment of the present invention. The touch panel of the present invention includes a monitor 101 for displaying a screen, a unit 102 for detecting that an operator has touched the monitor, and a memory 103 for screen display.
A memory 104 for storing the number of the switch touched by the operator, a storage unit for storing the number of the switch, and a reducing unit for retrieving the switch number from the coordinates of the touched location and reducing the area for storing the switch number. And a CPU 5 having the reduction means.

FIG. 2 is a flowchart showing a switch registration procedure. In the present invention, it is necessary to perform switch registration in advance. In registration, the accuracy of the touch detection unit is set in S1. In S2, the switch number is initialized. S
At 3, the switch number is increased. In step S4, the switch i is displayed on the monitor. The switch coordinate range on the monitor displayed in S5 is obtained. In step S6, the switch number i is set in an array having a precision equal to the accuracy of the coordinate value indicating the switch range. If there is still a registration switch in S7, the process returns to S3.

FIG. 3 is a flowchart showing a switch search procedure. In the present invention, the processing when the monitor is actually touched is as follows. In S8, the accuracy value set by the touch detection unit is obtained. In S9, the process waits for a touch to be executed. When the touch is executed, the XY coordinates of the touch are obtained in S10. The touch coordinates obtained in S10 are divided by the accuracy value obtained in S8. In S11, a search is made to see if a switch number is registered in the corresponding array. If you are registered,
Returns the switch number.

[0010]

According to the touch operation method of the present invention,
Instead of managing the switch position of the touch panel, it can be managed simply by the number indicating the switch type. For this reason,
There is an effect that it is easy to create software using a touch panel as an input and a display device. In addition, the resolution at the time of the touch by the operator does not need to have the same resolution as the display on the monitor due to the area touched by the human. For this reason, the memory for registering switches can be reduced without having the same memory as the display resolution of the monitor. This has the effect of speeding up the switch search.

[Brief description of the drawings]

FIG. 1 is a block diagram showing one embodiment of the present invention.

FIG. 2 is a flowchart showing an embodiment of the present invention.

FIG. 3 is a flowchart showing an embodiment of the present invention.

FIG. 4 is a block diagram showing an example of the related art.

FIG. 5 is a schematic diagram illustrating a conventional example.

[Explanation of symbols]

 101 display monitor 102 touch detection unit 103 screen display memory 104 switch position registration memory 105 CPU

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) G06F 3/033-3/037 G06F 3/03 G06F 3/00 G06F 3/02-3/027

Claims (1)

(57) [Claims] (A) Setting the accuracy of a touch detection unit
(B) Step for initializing the switch number
(C) increasing the switch number, (D)
Displaying the switch i on the monitor, (E) display
Obtaining a switch coordinate range on the monitor,
(F) An array of 1 / accuracy of the coordinate value indicating the switch range
Setting a switch number i, (G) a registration switch
If there is still a switch, returning to the step (C).
A touch operation method, comprising performing switch registration .