CN108762567B - Position resolution measuring method and device - Google Patents
Position resolution measuring method and device Download PDFInfo
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- CN108762567B CN108762567B CN201810543090.7A CN201810543090A CN108762567B CN 108762567 B CN108762567 B CN 108762567B CN 201810543090 A CN201810543090 A CN 201810543090A CN 108762567 B CN108762567 B CN 108762567B
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- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
- G06F3/0418—Control or interface arrangements specially adapted for digitisers for error correction or compensation, e.g. based on parallax, calibration or alignment
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
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Abstract
The invention discloses a position resolution measuring method and a device, which are applied to a capacitive touch panel, wherein the capacitive touch panel comprises a single-layer electrode layer; the single-layer electrode layer comprises a plurality of sensing units; the method comprises the following steps: determining a plurality of touch-controllable points with incompletely same intervals in a sensing area of the touch panel as preset measuring points; respectively acquiring a self-inductance capacitance value set of the touch panel when a touch object touches each preset measuring point; the self-inductance capacitance value group comprises self-inductance capacitance values of all induction units in the touch panel; and determining the position resolution of the touch panel according to the capacitance variation between the self-inductance capacitance value groups corresponding to the preset measurement points and the distance between the preset measurement points. Through the technical scheme, the position resolution of the touch panel can be measured, so that corresponding touch operation can be conveniently carried out according to the position resolution of the touch panel, and invalid operation is reduced.
Description
Technical Field
The invention relates to the technical field of suspension touch control, in particular to a position resolution measuring method and device.
Background
Gesture induction, also called, touch-free science and technology, accomplishes a series of controls mainly through the operation gesture of various sensors response processing users on the electronic equipment. An important technology for realizing gesture sensing is a floating touch technology.
The floating touch technology detects a touch position of a user performing a touch operation on a touch panel through a capacitive touch device. The capacitive touch device works through the capacitance change of each sensing unit on the touch panel. When a touch object (such as a finger) approaches the touch panel, the capacitance of the sensing unit corresponding to the position of the touch object changes, so that the position of the touch object, namely the touch position, can be determined by detecting the capacitance change of each sensing unit. If the actual displacement of the touch object occurs in the same sensing unit, the capacitance of each sensing unit in the touch panel does not change or changes very little relative to the capacitance before the displacement, so that the position change is difficult to detect, and the corresponding touch operation cannot be responded, so that the touch operation is invalid.
Therefore, in order to reduce the invalid touch operation, it is necessary to measure the minimum displacement that can be detected by the touch panel, i.e., the position resolution of the touch panel in advance.
Disclosure of Invention
The invention provides a position resolution measuring method and device, which are used for measuring the position resolution of a touch panel so as to carry out corresponding touch operation according to the position resolution of the touch panel.
The invention provides a position resolution measuring method, which is applied to a capacitive touch panel, wherein the capacitive touch panel comprises a single-layer electrode layer; the single-layer electrode layer comprises a plurality of sensing units;
the method comprises the following steps:
determining a plurality of touch-controllable points with incompletely same intervals in a sensing area of the touch panel as preset measuring points;
respectively acquiring a self-inductance capacitance value set of the touch panel when a touch object touches each preset measuring point; the self-inductance capacitance value group comprises self-inductance capacitance values of all induction units in the touch panel;
and determining the position resolution of the touch panel according to the capacitance variation between the self-inductance capacitance value groups corresponding to the preset measurement points and the distance between the preset measurement points.
In this embodiment, a plurality of touchable points with different distances may be determined in the sensing area of the touch panel as preset measurement points, and then self-inductance capacitance values of each sensing unit on the touch panel when each preset measurement point is touched by a touch object are obtained, and the position resolution of the touch panel is determined according to the capacitance variation between the preset measurement points, so that the position resolution of the touch panel is measured in advance, and the subsequent touch operation is performed according to the position resolution of the touch panel.
Optionally, the determining the position resolution of the touch panel according to the capacitance variation between the self-inductance capacitance value groups corresponding to the preset measurement points and the distance between the preset measurement points includes:
acquiring the distance value between two preset measuring points with the capacitance variation larger than a preset threshold;
and determining the position resolution of the touch panel according to the minimum distance value in all the distance values.
In this embodiment, the position resolution of the touch panel is the minimum displacement that can be detected by the touch panel, and therefore, the position resolution of the touch panel can be determined according to the minimum distance value between two preset touch points where all capacitance variation amounts are greater than the preset threshold.
Optionally, the single-layer electrode layer includes a plurality of electrode plates arranged in a matrix form, each electrode plate is an induction unit, or a plurality of adjacent electrode plates meeting the target size parameter are mutually short-circuited to form one induction unit.
Optionally, the method further includes:
obtaining a plurality of target size parameters;
the determining a plurality of touchable points with incompletely identical intervals in the sensing area of the touch panel as preset measurement points includes:
respectively determining a preset measurement point group aiming at each target size parameter; the preset measurement point group comprises a plurality of touch points with incompletely same intervals in the induction area of the touch panel under corresponding target size parameters;
the determining the position resolution of the touch panel comprises:
and determining a first position resolution of the touch panel corresponding to each target size parameter.
In this embodiment, a plurality of different target size parameters may be obtained, where areas and shapes of the sensing units corresponding to the different target size parameters are different, and therefore, corresponding position resolution measurement needs to be performed for each target size parameter. The method includes the steps that a preset measuring point group is determined according to each target size parameter, the preset measuring point group comprises a plurality of touch points with incompletely same intervals in an induction area of the touch panel under the corresponding target size parameter, and then the first position resolution of the touch panel corresponding to each target size parameter is measured according to the preset measuring point group. For different target size parameters, the corresponding preset measurement point groups can be completely the same or different.
Optionally, the method further includes:
and storing each target size parameter and the corresponding first position resolution of the touch panel in an associated manner.
In this embodiment, each measured target size parameter and the first position resolution of the touch panel corresponding to the measured target size parameter may be stored in an associated manner, so that the target size parameter can be directly used in subsequent touch operations.
Optionally, the method further includes:
acquiring a plurality of preset suspension touch heights;
the determining a plurality of touchable points with incompletely identical intervals in the sensing area of the touch panel as preset measurement points includes:
respectively determining a preset measurement point group aiming at each preset suspension touch height; the preset measurement point group comprises a plurality of touch-controllable points with incompletely same distance in the induction area of the touch panel under the corresponding preset floating touch height;
the determining the position resolution of the touch panel comprises:
and determining a second position resolution of the touch panel corresponding to each preset floating touch height.
In this embodiment, for the same touch panel, when the floating touch heights of the touch objects are different, the corresponding position resolutions are also different. Therefore, the second position resolution of the touch panel corresponding to each preset floating touch height of the touch panel can be measured, and the subsequent touch operation can be conveniently carried out according to the preset floating touch height and the position resolution of the touch panel corresponding to the preset floating touch height.
Optionally, the method further includes:
and performing associated storage on each preset floating touch height and the second position resolution of the touch panel corresponding to the preset floating touch height.
In this embodiment, each measured preset floating touch height and the corresponding position resolution of the touch panel may be stored in an associated manner, so as to facilitate direct use in subsequent touch operations.
Optionally, the method further includes:
acquiring a plurality of preset floating touch heights and a plurality of target size parameters;
the determining a plurality of touchable points with incompletely identical intervals in the sensing area of the touch panel as preset measurement points includes:
respectively determining a preset measurement point group aiming at each target size parameter under each preset suspension touch height; the preset measurement point group comprises a plurality of touch-controllable points with incompletely same intervals in the induction area of the touch panel under corresponding preset floating touch height and target size parameters;
the determining the position resolution of the touch panel comprises:
and determining a third position resolution of the touch panel corresponding to each preset floating touch height and target size parameter.
In this embodiment, the preset floating touch height and the target size parameter may be multiple at the same time, so that a preset measurement point group may be determined for each target size parameter at each preset floating touch height, the preset measurement point group includes multiple touchable points with different distances in the sensing area of the touch panel at the corresponding preset floating touch height and the target size parameter, and the third position resolution of the touch panel corresponding to each preset floating touch height and the target size parameter is measured according to the preset measurement point group. For different target size parameters and preset floating touch heights, the corresponding preset measurement point groups can be completely the same or different. Therefore, the subsequent touch operation is conveniently carried out according to the preset floating touch height, the target size parameter and the position resolution of the touch panel corresponding to the target size parameter.
Optionally, the method further includes:
and performing associated storage on the preset floating touch height, the target size parameter and the corresponding third position resolution of the touch panel.
The invention provides a touch device, which is applied to a touch panel with a single-layer electrode layer, wherein the single-layer electrode layer comprises a plurality of electrode plates arranged in a matrix form; the device comprises:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to implement any of the above touch methods when executing the executable instructions in the memory.
A third aspect of the present invention provides a computer-readable storage medium having stored thereon computer instructions, which when executed by a processor, implement any of the above-mentioned touch methods.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a flow chart of a method for measuring position resolution according to an embodiment of the present invention;
FIG. 2 is a flow chart of another method for position resolution measurement according to an embodiment of the present invention;
FIG. 3 is a flowchart of another position resolution measurement method according to an embodiment of the present invention;
FIG. 4 is a flowchart of another position resolution measurement method according to an embodiment of the present invention;
FIG. 5 is a flowchart of another position resolution measurement method according to an embodiment of the present invention;
FIG. 6 is a flowchart of another position resolution measurement method according to an embodiment of the present invention;
FIG. 7 is a flowchart of another position resolution measurement method according to an embodiment of the present invention;
fig. 8 is a flowchart of another position resolution measurement method according to an embodiment of the present invention.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
In the related art, under the condition that the position resolution of the touch panel is uncertain, if the actual displacement of the touch object occurs in the same sensing unit, the capacitance of each sensing unit in the touch panel does not change or changes slightly relative to that before the displacement, so that the position change is difficult to detect, and the corresponding touch operation cannot be responded, so that the touch operation is invalid.
In order to solve the above problems, the present embodiment provides a position resolution measurement method, which is applied to a capacitive touch panel, where the capacitive touch panel includes a single-layer electrode layer; the single-layer electrode layer comprises a plurality of sensing units;
as shown in fig. 1, the position resolution measuring method includes steps S101 to S103:
step S101, determining a plurality of touchable points with an incomplete same distance in a sensing area of the touch panel as a preset measurement point.
The preset measurement point may be randomly selected, or the User may be guided to set the measurement point through a corresponding User Interface (UI). The distances between the preset measurement points are known and are not completely the same, that is, some distances may only set one pair of preset measurement points, and some distances may set multiple pairs of preset measurement points, for example, the determined distances include d1, d2, d3, d4, d5, d6, d7, d8, d9, and d10, where d1-d10 may have an increasing or decreasing trend, and then each distance may correspond to only one pair of preset measurement points, or may correspond to multiple preset measurement points, for example, the distance d1, the distance between only one pair of preset measurement points may be d1, and the distances between multiple pairs of preset measurement points may be d 1. For "pitch" that falls around a common position resolution, several pairs of preset measurement points may be set more to avoid measurement errors.
Step S102, respectively acquiring a self-inductance capacitance value set of the touch panel when the touch object touches each preset measuring point; the self-inductance capacitance value group comprises self-inductance capacitance values of all sensing units in the touch panel.
After the preset measuring points are determined, the measuring equipment can prompt the positions of the preset measuring points one by one so as to guide the touch object to touch at the corresponding preset measuring points, and therefore the self-inductance capacitance values of all induction units in the touch panel when the touch object touches at the preset measuring points, namely the self-inductance capacitance value group corresponding to the predicted measuring point, are obtained.
Step S103, determining a position resolution of the touch panel according to a capacitance variation between the self-inductance capacitance value groups corresponding to the preset measurement points and a distance between the preset measurement points.
When the self-inductance capacitance value group corresponding to one preset measurement point A changes relative to the self-inductance capacitance value group corresponding to another preset measurement point B, namely, capacitance variation exists, the touch panel can detect the touch position variation when the touch object moves from A to B (or from B to A), and the distance between A and B is assumed to be di, namely, the touch panel can detect at least the touch operation with the displacement of di, and the minimum displacement which can be detected by the touch panel is the position resolution of the touch panel.
In this embodiment, a plurality of touchable points with different distances may be determined in the sensing area of the touch panel as preset measurement points, and then self-inductance capacitance values of each sensing unit on the touch panel when each preset measurement point is touched by a touch object are obtained, and the position resolution of the touch panel is determined according to the capacitance variation between the preset measurement points, so that the position resolution of the touch panel is measured in advance, which is convenient for subsequent touch operation according to the position resolution of the touch panel, and reduces invalid operations.
As shown in fig. 2, optionally, the step S103 includes steps S201 to S202:
step S201, acquiring the distance value between two preset measuring points with the capacitance variation larger than a preset threshold; the preset threshold may be zero, or may be another preset threshold.
Step S202, determining the position resolution of the touch panel according to the minimum distance value of all the distance values.
In this embodiment, the position resolution of the touch panel is the minimum displacement that can be detected by the touch panel, and therefore, the position resolution of the touch panel can be determined according to the minimum distance value between two preset touch points where all capacitance variation amounts are greater than the preset threshold.
In the research process, the inventor finds that the position resolution is influenced by the floating touch height in addition to the area of the sensing unit, and therefore, when the area of the sensing unit is fixed but the floating touch height is different, the position resolution of the corresponding touch panel is also changed. In view of this, as shown in fig. 3, the position resolution measuring method provided in this embodiment further includes step S301:
step S301, a plurality of preset floating touch heights are obtained.
Based on the step S301, the step S101 may specifically include the step S302:
step S302, a preset measurement point group is determined for each preset floating touch height.
Wherein the preset measurement point group comprises a corresponding preset suspension touch heightA plurality of touch points with incompletely same space in the induction area of the touch panel; for example, for a preset hover touch height H1Determining the predetermined set of measurement points Q1＝{P1_i1,2,3, … … M1}, wherein P is1_iRepresents H1Corresponding to any one of the predetermined measurement points, M1 represents H1The number of corresponding preset measuring points; for another preset floating touch height H2Determining the predetermined set of measurement points Q2＝{P2_i1,2,3, … … M2}, wherein P is2_iRepresents H2Corresponding to any one of the predetermined measurement points, M2 represents H2The number of corresponding preset measuring points; by analogy, the corresponding preset measurement point group can be determined for each preset floating touch height.
Correspondingly, the step S102 may specifically include the step S303: for each preset measurement point in the preset measurement point group of each preset floating touch height, respectively acquiring the self-inductance capacitance value of each induction unit in the touch panel when the touch object touches at the preset measurement point, namely the self-inductance capacitance value group of the touch panel.
For example, for a preset hover touch height H1Respectively acquiring the touch object at a preset measuring point group Q1At each predetermined measuring point P1_iSelf-inductance capacitance value group C of touch panel during touch control1i＝{Cf1_j1,2,3, … … N, where C isf1_jIndicating that the touch object is at the preset measurement point P1_iWhen the touch panel touches, the self-inductance capacitance value of any one induction unit, and N represents the number of the induction units in the touch panel. For preset floating touch height H2Respectively acquiring the touch object at a preset measuring point group Q2At each predetermined measuring point P2_iSelf-inductance capacitance value group C of touch panel during touch control2i＝{Cf2_j1,2,3, … … N, where C isf2_jIndicating that the touch object is at each preset measuring point P2_iWhen the touch panel is touched, the self-inductance capacitance value of any one induction unit, and N represents the number of induction units in the touch panel; by analogy, each preset measuring point corresponding to each preset measuring point in each preset measuring point group with the preset floating touch height can be obtainedThe set of self-inductance capacitance values.
Correspondingly, the step S103 may specifically include the step S304:
step S304, determining a second position resolution of the touch panel corresponding to each preset floating touch height according to the capacitance variation between the self-inductance capacitance value groups corresponding to each preset measurement point and the distance between the preset measurement points.
For example, for a preset hover touch height H1Presetting a measuring point P1_1Corresponding self-inductance capacitance value set is C11＝{Cf1_j1,2,3, … … N }, and a preset measurement point P1_2Corresponding self-inductance capacitance value set is C12＝{Cf2_jIf j equals 1,2,3, … … N }, if C11Relative to C12If there is a change, i.e. there is a capacitance change, it indicates that the touch panel can detect that the touch object is changed from P1_1Move to P1_2Temporal touch position change, assume P1_1And P1_2The distance between the touch panels is d1, which means that the touch panel can detect at least the touch operation with the displacement d1, and the minimum displacement that can be detected is the position resolution of the touch panel.
For the same touch panel, when the floating touch heights of the touch objects are different, the corresponding position resolutions are also different. Therefore, in the embodiment, the second position resolution of the touch panel corresponding to each preset floating touch height of the touch panel is measured, so that the touch operation can be performed subsequently according to the preset floating touch height and the position resolution of the touch panel corresponding to the preset floating touch height.
As shown in fig. 4, optionally, the method shown in fig. 3 further includes step S401:
step S401, associate and store each preset floating touch height and the second position resolution of the touch panel corresponding to the preset floating touch height.
In this embodiment, each measured preset floating touch height and the position resolution of the touch panel corresponding to the preset floating touch height may be stored in an associated manner, so that the floating touch height can be directly used in subsequent touch operations.
Optionally, in this embodiment, a single-layer electrode layer of the touch panel includes a plurality of electrode plates arranged in a matrix, and each electrode plate is subjected to short circuit control, so that each electrode plate is an induction unit, or a plurality of adjacent electrode plates meeting a target size parameter are mutually short-circuited to form one induction unit.
As shown in fig. 5, based on the touch panel with the above structure, the method further includes:
step S501, obtaining a plurality of target size parameters; the target dimension parameter is one or more parameters for characterizing the currently required dimension of the sensing unit.
In different embodiments, different types of parameters may be employed as the target size parameter, including: the target sensing unit includes a target number of electrode plates, a target area, a target aspect ratio, and a target shape.
It should be noted that, since the floating touch height is also an influence factor of the position resolution, the embodiment shown in fig. 5 can be applied to a scenario in which the floating touch height is consistent or the influence of the floating touch height is negligible.
Based on this step S501, the above step S101 includes a step S502:
step S502, determining a preset measurement point group for each target size parameter.
The preset measurement point group comprises a plurality of touch points with incompletely same intervals in the induction area of the touch panel under corresponding target size parameters; for example, for a target size parameter S1Determining the predetermined set of measurement points R1＝{P1_i1,2,3, … … T1}, wherein P is1_iDenotes S1Corresponding to any one of the preset measuring points, T1 represents S1The number of corresponding preset measuring points; for the target size parameter S2Determining the predetermined set of measurement points R2＝{P2_i1,2,3, … … T2}, wherein P is2_iDenotes S2Corresponding to any one of the preset measuring points, T2 represents S2The number of corresponding preset measuring points is as follows: to be provided withBy analogy, a corresponding set of preset measurement points may be determined for each target size parameter.
For different target size parameters, the corresponding preset measurement point groups can be completely the same or different.
Correspondingly, the step S102 may specifically include the step S503:
step S503, for each preset measurement point in the preset measurement point group of each target dimension parameter, respectively acquiring a self-inductance capacitance value of each sensing unit in the touch panel, that is, a self-inductance capacitance value group of the touch panel, when the touch object touches at the preset measurement point.
For example, for a target size parameter S1Respectively acquiring the touch object at a preset measuring point group R1At each predetermined measuring point P1_iSelf-inductance capacitance value group C of touch panel during touch control1i＝{Cf1_j1,2,3, … … N1}, wherein C isf1_jIndicating that the touch object is at the preset measurement point P1_iThe self-inductance capacitance of any one of the sensing units when touched, N1 represents the target dimension parameter S1The number of sensing units in the lower touch panel. For the target size parameter S2Respectively acquiring the touch object at a preset measuring point group Q2At each predetermined measuring point P2_iSelf-inductance capacitance value group C of touch panel during touch control2i＝{Cf2_j1,2,3, … … N2}, wherein C isf2_jIndicating that the touch object is at each preset measuring point P2_iThe self-inductance capacitance of any one of the sensing units when touched, N2 represents the target dimension parameter S2The number of sensing units in the lower touch panel; and so on, the self-inductance capacitance value group corresponding to each preset measuring point in the preset measuring point group of each target size parameter can be obtained.
Correspondingly, the step S103 may specifically include the step S504:
step S504, determining a first position resolution of the touch panel corresponding to each target dimension parameter according to a capacitance variation between the self-inductance capacitance value groups corresponding to each preset measurement point and a distance between the preset measurement points.
For example, for a target size parameter S1Presetting a measuring point P1_1Corresponding self-inductance capacitance value set is C11＝{Cf1_j1,2,3, … … N1}, and a preset measurement point P1_2Corresponding self-inductance capacitance value set is C12＝{Cf2_j1,2,3, … … N2}, if C is equal to11Relative to C12If there is a change, i.e. there is a capacitance change, it indicates that the touch panel can detect that the touch object is changed from P1_1Move to P1_2Temporal touch position change, assume P1_1And P1_2The distance between the touch panels is d2, which means that the touch panel can detect at least the touch operation with the displacement d2, and the minimum displacement that can be detected is the position resolution of the touch panel.
In this embodiment, a plurality of different target size parameters may be obtained, where areas and shapes of the sensing units corresponding to the different target size parameters are different, and therefore, corresponding position resolution measurement needs to be performed for each target size parameter. The method includes the steps that a preset measuring point group is determined according to each target size parameter, the preset measuring point group comprises a plurality of touch points with incompletely same intervals in an induction area of the touch panel under the corresponding target size parameter, and then the first position resolution of the touch panel corresponding to each target size parameter is measured according to the preset measuring point group. According to the embodiment, under the condition that different mutual short circuits between electrode plates in the touch panel can be measured, namely, when the floating touch is detected by using the sensing units with different sizes, the position resolutions of the touch panel are respectively what, so that a proper mutual short circuit control scheme can be conveniently selected according to different position resolution requirements.
As shown in fig. 6, optionally, the method shown in fig. 5 further includes step S601:
step S601, associating and storing each target size parameter and the first position resolution of the touch panel corresponding to the target size parameter.
In this embodiment, each measured target size parameter and the first position resolution of the touch panel corresponding to the measured target size parameter may be stored in association, so as to be directly used in the subsequent touch operation.
As shown in fig. 7, based on the characteristic that the touch panel can perform short circuit control according to the target size parameter to adjust the size of the sensing unit, when the method is applied to a scenario with a plurality of target size parameters and a plurality of floating touch heights, the method further includes:
step S701, acquiring a plurality of preset floating touch heights and a plurality of target size parameters;
based on the step S701, the step S101 may specifically include the step S702:
step S702, determining a preset measurement point group for each target size parameter at each preset floating touch height.
The preset measurement point group comprises a plurality of touch points with incompletely same intervals in the induction area of the touch panel under corresponding preset floating touch height and target size parameters; for example, for a preset hover touch height H1And a target size parameter S1Determining the predetermined set of measurement points E1_1＝{P11_i1,2,3, … … F1}, wherein P is11_iRepresents H1And S1Corresponding to any one of the preset measuring points, F1 represents H1And S1The number of corresponding preset measuring points; for preset floating touch height H1And a target size parameter S2Determining the predetermined set of measurement points E1_2＝{P12_i1,2,3, … … F2}, wherein P is12_iRepresents H1And S2Corresponding to any one of the preset measuring points, F2 represents H1And S2The number of corresponding preset measuring points; for preset floating touch height H2And a target size parameter S2Determining the predetermined set of measurement points E2_2＝{P22_i1,2,3, … … F3}, wherein P is22_iRepresents H2And S2Corresponding to any one of the preset measuring points, F3 represents H2And S2The number of corresponding preset measuring points; by analogy, a corresponding preset measurement point group can be determined for each target size parameter at each preset floating touch height.
Correspondingly, the step S102 may specifically include the step S703:
step S703 is to obtain, for each preset measurement point in the preset measurement point group of each target size parameter at each preset floating touch height, a self-inductance capacitance value of each sensing unit in the touch panel, that is, a self-inductance capacitance value group of the touch panel, when the touch object touches at the preset measurement point.
For example, for a preset hover touch height H1And a target size parameter S1Respectively acquiring the touch object at a preset measuring point group E1_1At each predetermined measuring point P11_iSelf-inductance capacitance value group C of touch panel during touch control11_i＝{Cf11_j1,2,3, … … X1}, wherein C isf11_jIndicating that the touch object is at the preset measurement point P11_iThe self-inductance capacitance of any one of the sensing units during touch down, X1 represents the target dimension parameter S1The number of sensing units in the lower touch panel. For preset floating touch height H2And a target size parameter S2Respectively acquiring the touch object at a preset measuring point group E2_2At each predetermined measuring point P22_iSelf-inductance capacitance value group C of touch panel during touch control22_i＝{Cf22_j1,2,3, … … X2}, wherein C isf22_jIndicating that the touch object is at each preset measuring point P22_iThe self-inductance capacitance of any one of the sensing units during touch down, X2 represents the target dimension parameter S2The number of sensing units in the lower touch panel; by analogy, the self-inductance capacitance value group corresponding to each preset measuring point in the preset measuring point group of each target size parameter at each preset floating touch height can be obtained.
Correspondingly, the step S103 may specifically include the step S704:
step S704, determining a third position resolution of the touch panel corresponding to each preset floating touch height and the target size parameter according to the capacitance variation between the self-inductance capacitance value sets corresponding to each preset measurement point and the distance between the preset measurement points.
For example, for a preset hover touch height H1And a target size parameter S1Preset testMeasurement Point P11_1Corresponding self-inductance capacitance value set C11_1＝{Cf1_j1,2,3, … … N1}, and a preset measurement point P11_2Corresponding self-inductance capacitance value set C11_2＝{Cf2_j1,2,3, … … N2}, if C is equal to11_1Relative to C11_2If there is a change, i.e. there is a capacitance change, it indicates that the touch panel can detect that the touch object is changed from P11_1Move to P11_2Temporal touch position change, assume P11_1And P11_2The distance between the touch panels is d3, which means that the touch panel can detect at least the touch operation with the displacement d3, and the minimum displacement that can be detected is the position resolution of the touch panel.
For an application scenario where the preset floating touch height and the target size parameter may have multiple applications at the same time, in this embodiment, a preset measurement point group may be determined for each target size parameter at each preset floating touch height, where the preset measurement point group includes multiple touchable points with different distances in the sensing area of the touch panel at the corresponding preset floating touch height and the target size parameter, and then the third position resolution of the touch panel corresponding to each preset floating touch height and the target size parameter is measured according to the preset measurement point group. For different target size parameters and preset floating touch heights, the corresponding preset measurement point groups can be completely the same or different. Therefore, the subsequent touch operation is conveniently carried out according to the preset floating touch height, the target size parameter and the position resolution of the touch panel corresponding to the target size parameter.
As shown in fig. 8, optionally, the method shown in fig. 7 further includes step S801:
step S801, performing associated storage on the preset floating touch height, the target size parameter, and the corresponding third position resolution of the touch panel.
The invention provides a touch device, which is applied to a touch panel with a single-layer electrode layer, wherein the single-layer electrode layer comprises a plurality of electrode plates arranged in a matrix form; the device comprises:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to implement any of the above touch methods when executing the executable instructions in the memory.
A third aspect of the present invention provides a computer-readable storage medium having stored thereon computer instructions, which when executed by a processor, implement any of the above-mentioned touch methods.
The above embodiments can be freely combined according to actual needs.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. A position resolution measurement method is characterized by being applied to a capacitive touch panel, wherein the capacitive touch panel comprises a single-layer electrode layer; the single-layer electrode layer comprises a plurality of sensing units;
the method comprises the following steps:
determining a plurality of touch-controllable points with incompletely same intervals in a sensing area of the touch panel as preset measuring points;
respectively acquiring a self-inductance capacitance value set of the touch panel when a touch object touches each preset measuring point; the self-inductance capacitance value group comprises self-inductance capacitance values of all induction units in the touch panel;
and determining the position resolution of the touch panel according to the capacitance variation between the self-inductance capacitance value groups corresponding to the preset measurement points and the distance between the preset measurement points, wherein the position resolution of the touch panel is the minimum displacement which can be detected by the touch panel.
2. The method according to claim 1, wherein determining the position resolution of the touch panel according to the capacitance variation between the self-inductance capacitance value groups corresponding to the preset measurement points and the distance between the preset measurement points comprises:
acquiring the distance value between two preset measuring points with the capacitance variation larger than a preset threshold;
and determining the position resolution of the touch panel according to the minimum distance value in all the distance values.
3. The method according to claim 1 or 2, wherein the single electrode layer comprises a plurality of electrode plates arranged in a matrix form, each electrode plate is a sensing unit, or a plurality of adjacent electrode plates meeting target dimension parameters are mutually short-circuited to form a sensing unit.
4. The method of claim 3, further comprising:
obtaining a plurality of target size parameters;
the determining a plurality of touchable points with incompletely identical intervals in the sensing area of the touch panel as preset measurement points includes:
respectively determining a preset measurement point group aiming at each target size parameter; the preset measurement point group comprises a plurality of touch points with incompletely same intervals in the induction area of the touch panel under corresponding target size parameters;
the determining the position resolution of the touch panel comprises:
and determining a first position resolution of the touch panel corresponding to each target size parameter.
5. The method of claim 4, further comprising:
and storing each target size parameter and the corresponding first position resolution of the touch panel in an associated manner.
6. The method according to claim 1 or 2, characterized in that the method further comprises:
acquiring a plurality of preset suspension touch heights;
the determining a plurality of touchable points with incompletely identical intervals in the sensing area of the touch panel as preset measurement points includes:
respectively determining a preset measurement point group aiming at each preset suspension touch height; the preset measurement point group comprises a plurality of touch-controllable points with incompletely same distance in the induction area of the touch panel under the corresponding preset floating touch height;
the determining the position resolution of the touch panel comprises:
and determining a second position resolution of the touch panel corresponding to each preset floating touch height.
7. The method of claim 6, further comprising:
and performing associated storage on each preset floating touch height and the second position resolution of the touch panel corresponding to the preset floating touch height.
8. The method of claim 3, further comprising:
acquiring a plurality of preset floating touch heights and a plurality of target size parameters;
the determining a plurality of touchable points with incompletely identical intervals in the sensing area of the touch panel as preset measurement points includes:
respectively determining a preset measurement point group aiming at each target size parameter under each preset suspension touch height; the preset measurement point group comprises a plurality of touch-controllable points with incompletely same intervals in the induction area of the touch panel under corresponding preset floating touch height and target size parameters;
the determining the position resolution of the touch panel comprises:
and determining a third position resolution of the touch panel corresponding to each preset floating touch height and target size parameter.
9. The method of claim 8, further comprising:
and performing associated storage on the preset floating touch height, the target size parameter and the corresponding third position resolution of the touch panel.
10. A position resolution measuring device is characterized by being applied to a capacitive touch panel, wherein the capacitive touch panel comprises a single-layer electrode layer; the single-layer electrode layer comprises a plurality of sensing units;
the device comprises:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to:
determining a plurality of touch-controllable points with incompletely same intervals in a sensing area of the touch panel as preset measuring points;
respectively acquiring a self-inductance capacitance value set of the touch panel when a touch object touches each preset measuring point; the self-inductance capacitance value group comprises self-inductance capacitance values of all induction units in the touch panel;
and determining the position resolution of the touch panel according to the capacitance variation between the self-inductance capacitance value groups corresponding to the preset measurement points and the distance between the preset measurement points, wherein the position resolution of the touch panel is the minimum displacement which can be detected by the touch panel.
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