JP7204415B2 - Touch panel device, control method for touch panel device, program, and storage medium for storing program - Google Patents

Description

The present invention relates to a touch panel device having a touch panel that outputs a signal corresponding to a position touched by an operator, a control method for the touch panel device, a program, and a storage medium that stores the program.

In Patent Document 1 below, the level of the detected capacitance of a tap position signal indicating the tap position where the finger touches the touch panel exceeds the first threshold, and the time during which the level of the detected capacitance exceeds the first threshold. Disclosed is that the tap position signal is valid if it persists for more than a second threshold time.

JP 2018-101342 A

In the technique disclosed in Patent Literature 1, the tap position signal cannot be validated until the second threshold time elapses, so there is a problem that the responsiveness of the touch panel device to the operation deteriorates.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and provides a touch panel device, a control method for the touch panel device, a program, and a storage medium for storing the program, which can improve responsiveness to operations by operators. intended to

A first aspect of the present invention is a touch panel device having a touch panel that outputs a signal corresponding to a position touched by an operator, wherein the touch panel is partitioned into a grid pattern, and the intensity of the signal is obtained in each partition. A signal intensity acquisition unit that acquires the signal an operation position acquisition unit that acquires, as the operation position of the operator, the position of the main section where the number of the auxiliary sections whose intensity is equal to or greater than a second threshold smaller than the first threshold is equal to or greater than a predetermined number; have.

A second aspect of the present invention is a control method for a touch panel device having a touch panel that outputs a signal corresponding to a position touched by an operator, wherein the touch panel is partitioned into a grid, and each partition has the a signal intensity acquisition step of acquiring signal intensity; setting a section having a signal intensity equal to or greater than a first threshold as a main section, and setting a section located within a predetermined distance from the main section as an auxiliary section; a position obtaining step of obtaining, as an operation position of the operator, the position of the main section where the number of the auxiliary sections whose signal strength is equal to or greater than a second threshold smaller than the first threshold is equal to or greater than a predetermined number; , has

A third aspect of the present invention is a program that causes a computer to execute the method for controlling the touch panel device according to the second aspect.

A fourth aspect of the present invention is a storage medium that stores a program that causes a computer to execute the control method for the touch panel device according to the second aspect.

ADVANTAGE OF THE INVENTION According to this invention, the response with respect to operation by an operator can be improved.

It is a block diagram which shows the structure of a touch-panel apparatus. FIG. 3 is a schematic diagram of a state in which the touch panel is partitioned in a grid pattern; 6 is a flow chart showing the flow of position acquisition processing performed in an operation position acquisition unit; FIG. 4 is a schematic diagram showing an example of the signal intensity of the touch panel in each section on the touch panel; FIG. 10 is a diagram showing how signals appear on the touch panel when two points on the touch panel are touched by an operator;

[First embodiment]
[Configuration of touch panel device]
FIG. 1 is a block diagram showing the configuration of the touch panel device 10. As shown in FIG. The touch panel device 10 is an input device that is operated by a user touching a display unit 12 on which an image or the like is displayed with an operator such as a finger or a stylus. The touch panel device 10 of this embodiment is used as an input device for a numerical controller 14 that controls a machine tool (not shown).

The touch panel device 10 has a display section 12 , a display control section 16 , a touch panel 18 , a signal strength acquisition section 20 and an operation position acquisition section 22 .

The display unit 12 is a liquid crystal display or the like, and displays icons for the user to input commands to the numerical controller 14, information indicating the status of the machine tool sent from the numerical controller 14, and the like. The display control unit 16 controls the display unit 12 according to requests from the numerical control device 14 .

The touch panel 18 is a transparent film member attached to the screen of the display unit 12 . The touch panel 18 outputs a signal corresponding to the position where the operator is touched. The touch panel 18 of the present embodiment is a mutual capacitance touch panel, but may be a self-capacitance touch panel.

The signal intensity acquisition unit 20 partitions the touch panel 18 in a grid pattern and acquires the signal intensity of the touch panel 18 in each partition. FIG. 2 is a schematic diagram of a state in which the touch panel 18 is partitioned in a grid pattern. For example, the touch panel 18 is divided into m×n sections S[1, 1] to S[m, n], and the signal strength acquisition unit 20 obtains each section S[1, 1] to S[m, n]. acquires the intensity of the signal output by the touch panel 18 at . In FIG. 2, lines indicating the boundaries of the sections S[1,1] to S[m,n] are shown. ] is not visible. Hereinafter, when one section S[1, 1] to S[m, n] is not specified, it may be referred to as section S.

The operation position acquisition unit 22 acquires the operation position where the touch panel 18 is operated by the operator from the intensity of the signal output from the touch panel 18 in each section S acquired by the signal intensity acquisition unit 20 .

Note that the display control unit 16, the signal strength acquisition unit 20, and the operation position acquisition unit 22 are realized by executing a program stored in the storage medium 26 by a computer.

[Position Acquisition Processing]
FIG. 3 is a flowchart showing the flow of position acquisition processing performed by the operation position acquisition unit 22. As shown in FIG.

In step S<b>1 , the operation position acquisition unit 22 selects one section S on the touch panel 18 . Section S is selected in the order of section S[1,1]→section S[1,2]→section S[1,3], for example (FIG. 2).

In step S<b>2 , the operation position acquisition unit 22 acquires the strength of the signal output from the touch panel 18 in the selected section S.

In step S3, the operation position acquisition unit 22 determines whether or not the signal strength of the selected section S is greater than or equal to the first threshold value T1. If the signal strength of the selected section S is greater than or equal to the first threshold T1, the process proceeds to step S4, and if the signal strength of the selected section S is less than the first threshold T1, the process proceeds to step S9.

In step S4, the operation position acquisition unit 22 sets the selected section S as the main section.
In step S5, the operation position acquisition unit 22 sets the section S adjacent to the main section as the auxiliary section. A section S within a predetermined distance from the main section may be set as an auxiliary section.

In step S6, the operation position acquisition unit 22 acquires the intensity of the signal output by the touch panel 18 in each auxiliary section.

In step S7, the operation position acquisition unit 22 determines whether or not there are six or more sections S in which the signal intensity of the auxiliary section is equal to or greater than the second threshold T2 (<first threshold T1). If there are 6 or more sections S whose signal intensity is equal to or higher than the second threshold T2, the process proceeds to step S8, and if there are less than 6 sections S whose signal strength is equal to or higher than the second threshold T2, step Move to S9.

In step S8, the operation position acquisition unit 22 sets the position of the main section on the touch panel 18 as the operation position of the operator.

In step S9, the operation position acquisition unit 22 determines whether or not all the sections S have been selected by the process of step S1. If all the partitions S have been selected, the process ends, and if there are partitions S that have not been selected yet, the process proceeds to step S1.

FIG. 4 is a schematic diagram showing an example of signal intensity of the touch panel 18 in each section S on the touch panel 18. As shown in FIG. In FIG. 4 , the section S whose signal intensity is equal to or higher than the first threshold T1 is indicated in black, and the section S whose signal strength is equal to or higher than the second threshold T2 and is lower than the first threshold T1 is indicated in gray, Sections S whose signal strength is below the second threshold T2 are shown in white.

In the example of FIG. 4, the operation position acquisition unit 22 sets the section S(4, 4) whose signal intensity is equal to or greater than the first threshold value T1 as the main section. The operation position acquisition unit 22 acquires the section S(3,3), section S(3,4), section S(3,5), section S(4, 3), Section S(4,5), Section S(5,3), Section S(5,4), Section S(5,5) are set as auxiliary sections.

Of the eight segments S set as auxiliary segments, the intensity of the signal in six segments S is greater than or equal to the second threshold value T2. ) is set to the operating position of the operator.

Moreover, in the example of FIG. 4, the operation position acquisition part 22 sets the division S (7, 8) whose signal intensity is equal to or greater than the first threshold value T1 as the main division. The operation position acquisition unit 22 acquires the section S (6, 7), the section S (6, 8), the section S (6, 9), the section S (7, 7), Section S(7, 9), Section S(8, 7), Section S(8, 8), Section S(8, 9) are set as auxiliary sections.

Since the signal intensities of three sections S among the eight sections S set as auxiliary sections are equal to or greater than the second threshold value T2, the operation position acquisition unit 22 obtains the section S (7, 8 ) is not set as the operation position of the operator.

[Effect]
FIG. 5 is a diagram showing the state of signals on the touch panel 18 when two points on the touch panel 18 are touched by an operator.

As shown in FIG. 5, noise is detected at locations on the touch panel 18 other than the location where the operator is in contact. In a capacitive touch panel like the touch panel 18 of the present embodiment, noise may cause the touch panel 18 to acquire, as an operation position, a position different from the position where the operator is touched.

When an operator such as a user's finger or a stylus touches the touch panel 18, a signal is detected also in surrounding sections S around the section S corresponding to the operation position. On the other hand, the noise signal is detected in the section S which is narrower than the signal when the operator touches the touch panel 18 .

Therefore, in the present embodiment, the section S whose signal intensity is equal to or greater than the first threshold value T1 is set as the main section, the section S adjacent to the main section is set as the auxiliary section, and the signal strength is set to the second The position of the main section where the number of auxiliary sections equal to or greater than the threshold value T2 is 6 or more is acquired as the operating position of the operator. It should be noted that the condition for the number of auxiliary sections whose signal intensity is equal to or higher than the second threshold value T2 does not have to be limited to 6 or more.

As a result, it is possible to improve the noise resistance of the touch panel device 10 and improve the accuracy of the obtained operation position of the operator.

The length of time during which the noise is detected is shorter than the length of time during which the signal is detected when the operator touches the touch panel 18 . Therefore, it is conceivable to acquire the section S in which the signal intensity is equal to or greater than the threshold for a predetermined time or longer as the operating position of the operator. In that case, it takes time to acquire the operating position of the manipulator, and the responsiveness deteriorates. In contrast, touch panel device 10 of the present embodiment can improve responsiveness.

[Technical ideas obtained from the embodiment]
Technical ideas that can be grasped from the above embodiments will be described below.

A touch panel device (10) having a touch panel (18) for outputting a signal corresponding to a position touched by an operator, wherein the touch panel is divided into grids and the strength of the signal is measured in each division (S). A signal strength acquisition unit (20) that acquires the signal strength is set to the main section as a section where the signal strength is equal to or higher than the first threshold value (T1), and the section located within a predetermined distance from the main section is set as an auxiliary section and the position of the main section where the number of the auxiliary sections where the signal strength is equal to or greater than a second threshold (T2) smaller than the first threshold is equal to or greater than a predetermined number as the operation position of the operator. and an operation position acquisition unit (22) for acquisition. Thereby, it is possible to improve the responsiveness to the operation by the operator of the touch panel device.

A control method for a touch panel device (10) having a touch panel (18) for outputting a signal corresponding to a position touched by an operator, wherein the touch panel is partitioned into a grid, and each partition (S) has the A signal intensity acquisition step of acquiring the intensity of a signal, setting a section in which the intensity of the signal is equal to or greater than a first threshold (T1) as a main section, and setting a section located within a predetermined distance from the main section as an auxiliary section and the position of the main section where the number of the auxiliary sections where the signal strength is equal to or greater than a second threshold (T2) smaller than the first threshold is equal to or greater than a predetermined number as the operation position of the operator. and a position acquisition step of acquiring. Thereby, it is possible to improve the responsiveness to the operation by the operator of the touch panel device.

A program for causing a computer to execute the control method of the touch panel device (10). Thereby, it is possible to improve the responsiveness to the operation by the operator of the touch panel device.

A storage medium (26) storing a program for causing a computer to execute the control method of the touch panel device (10). Thereby, it is possible to improve the responsiveness to the operation by the operator of the touch panel device.

DESCRIPTION OF SYMBOLS 10... Touch panel apparatus 18... Touch panel 20... Signal strength acquisition part S... Section T1... 1st threshold value T2... 2nd threshold value

Claims (4)

A touch panel device having a touch panel that outputs a signal corresponding to a position touched by an operator,
a signal intensity acquisition unit that partitions the touch panel in a grid pattern and acquires the intensity of the signal in each partition;
A section in which the intensity of the signal is equal to or higher than the first threshold is set as a main section, a section located within a predetermined distance from the main section is set as an auxiliary section, and the signal strength is higher than the first threshold. an operation position acquiring unit that acquires, as an operation position of the operator, the position of the main section in which the number of the auxiliary sections that are equal to or greater than a second small threshold is equal to or greater than a predetermined number;
A touch panel device. A control method for a touch panel device having a touch panel that outputs a signal corresponding to a position touched by an operator, comprising:
A signal strength acquisition step of dividing the touch panel in a grid pattern and obtaining the strength of the signal in each section;
A section in which the intensity of the signal is equal to or higher than the first threshold is set as a main section, a section located within a predetermined distance from the main section is set as an auxiliary section, and the signal strength is higher than the first threshold. a position acquisition step of acquiring, as an operation position of the operator, the position of the main section where the number of the auxiliary sections equal to or greater than a second small threshold is equal to or greater than a predetermined number;
A control method for a touch panel device. A program that causes a computer to execute the control method of the touch panel device according to claim 2 . A storage medium for storing a program for causing a computer to execute the control method of the touch panel device according to claim 2.

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