CN113253878B - Touch screen report point determining method and device, electronic equipment and storage medium - Google Patents
Touch screen report point determining method and device, electronic equipment and storage medium Download PDFInfo
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- CN113253878B CN113253878B CN202110706935.1A CN202110706935A CN113253878B CN 113253878 B CN113253878 B CN 113253878B CN 202110706935 A CN202110706935 A CN 202110706935A CN 113253878 B CN113253878 B CN 113253878B
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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
- G06F3/0416—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
- G06F3/04182—Filtering of noise external to the device and not generated by digitiser components
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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
Abstract
The disclosure provides a touch screen reporting point determining method, which includes: determining a target capacitance node on the touch screen, wherein the target capacitance node is a capacitance node of which the corresponding capacitance difference value on the touch screen meets a reporting threshold; determining a target capacitance area with a target capacitance node as a center; acquiring a capacitance difference value of each capacitance node in a target capacitance area; and determining the target capacitance node as a report point in response to the capacitance difference value of each capacitance node in the target capacitance area meeting a specified report point condition. Therefore, the capacitance difference value of each capacitance node in the target capacitance area meets the specified report point condition, the target capacitance node is determined to be the report point, the condition that the capacitance difference value caused by interference reaches the capacitance node of the report point threshold value under the interference environment can be avoided, ghost points appear on the touch screen due to the fact that the error recognition is the report point is achieved, and user experience is improved.
Description
Technical Field
The present disclosure relates to the field of touch screen technologies, and in particular, to a touch screen reporting point determining method and apparatus, an electronic device, and a storage medium.
Background
The touch screen is used as the most important means for interaction between the touch screen terminal device and a user, and is used for feeding back touch operation of the user, when the user is in an environment where touch signals are interfered, capacitance of some points on the touch screen, which are not really touched by the user, is changed, and therefore the terminal device responds to the touch event. This type of touch point is called a ghost point. The occurrence of ghost points causes the touch screen not to be normally used, and the user experience is reduced.
Disclosure of Invention
The disclosure provides a touch screen report point determining method, a touch screen report point determining device, electronic equipment and a storage medium, which are used for solving the problem that in the related art, when a user is in an environment where a touch signal is interfered, capacitance of some points on the touch screen, which are not really touched by the user, is changed, so that terminal equipment responds to a touch event, the touch points are called ghost points, the occurrence of the ghost points causes the touch screen not to be normally used, and user experience is reduced. The technical scheme of the disclosure is as follows:
according to a first aspect of the embodiments of the present disclosure, a touch screen hit determination method is provided, including: determining a target capacitance node on the touch screen, wherein the target capacitance node is a capacitance node of which the corresponding capacitance difference value on the touch screen meets a reporting threshold; determining a target capacitance area centered on the target capacitance node; acquiring a capacitance difference value of each capacitance node in the target capacitance area; and determining the target capacitance node as a report point in response to the capacitance difference value of each capacitance node in the target capacitance area meeting a specified report point condition.
Optionally, the method further comprises: determining a detection time point of the target capacitance node; the obtaining of the capacitance difference value of each capacitance node in the target capacitance region includes: acquiring a target time point in a preset time period after the detection time point, wherein the target time point is the time point with the maximum capacitance difference value of the target capacitance node in the preset time period; and acquiring the capacitance difference value of each capacitance node in the target capacitance area at the target time point.
Optionally, the method further comprises: determining the sum of capacitance differences of each capacitance node in the target capacitance area; determining a global mean value on the touch screen according to the sum and the total number of the capacitance nodes on the touch screen; responding to the fact that the global mean value is smaller than a preset global mean value threshold value, and determining that the capacitance difference value of each capacitance node in the target capacitance area does not meet the report point condition; and determining that the capacitance difference value of each capacitance node in the target capacitance area meets the report point condition in response to the global mean value being greater than or equal to the global mean value threshold.
Optionally, the capacitance difference value is determined according to an original value of the capacitance node and a reference value; the method further comprises the following steps: and in response to that the capacitance difference value of each capacitance node in the target capacitance area does not meet the reporting condition, updating the reference value of each capacitance node in the target capacitance area according to the original value of each capacitance node in the target capacitance area, and storing the reference value before updating according to each capacitance node in the target capacitance area.
Optionally, after the updating the reference value of each capacitance node in the target capacitance region according to the original value of each capacitance node in the target capacitance region, the method further includes: re-acquiring the capacitance difference value of each capacitance node in the target capacitance area; when the capacitance difference values of a preset number of capacitance nodes in the target capacitance region are negative values and are smaller than a preset difference threshold value, restoring the reference value of each capacitance node in the target capacitance region to the pre-update reference value of each capacitance node in the target capacitance region; wherein the preset number is less than or equal to the total number of capacitive nodes within the target capacitive area.
According to a second aspect of the embodiments of the present disclosure, there is also provided a touch screen hit determination device, including: the touch screen processing device comprises a first determining module, a second determining module and a third determining module, wherein the first determining module is used for determining a target capacitance node on the touch screen, and the target capacitance node is a capacitance node of which the corresponding capacitance difference value on the touch screen meets a reporting threshold; a second determining module, configured to determine a target capacitance region centered on the target capacitance node; the acquisition module is used for acquiring a capacitance difference value of each capacitance node in the target capacitance area; and the third determining module is used for determining the target capacitance node as a report point in response to the capacitance difference value of each capacitance node in the target capacitance area meeting a specified report point condition.
Optionally, the apparatus further comprises: a fourth determining module, configured to determine a detection time point of the target capacitance node; the acquisition module is specifically configured to: acquiring a target time point in a preset time period after the detection time point, wherein the target time point is the time point with the maximum capacitance difference value of the target capacitance node in the preset time period; and acquiring the capacitance difference value of each capacitance node in the target capacitance area at the target time point.
Optionally, the third determining module is further configured to: determining the sum of capacitance differences of each capacitance node in the target capacitance area; determining a global mean value on the touch screen according to the sum and the total number of the capacitance nodes on the touch screen; responding to the fact that the global mean value is smaller than a preset global mean value threshold value, and determining that the capacitance difference value of each capacitance node in the target capacitance area does not meet the report point condition; and determining that the capacitance difference value of each capacitance node in the target capacitance area meets the report point condition in response to the global mean value being greater than or equal to the global mean value threshold.
Optionally, the capacitance difference value is determined according to an original value of the capacitance node and a reference value; the device further comprises: and the updating module is used for responding that the capacitance difference value of each capacitance node in the target capacitance area does not meet the reporting condition, updating the reference value of each capacitance node in the target capacitance area according to the original value of each capacitance node in the target capacitance area, and storing the reference value before updating of each capacitance node in the target capacitance area.
Optionally, the update module is further configured to: re-acquiring the capacitance difference value of each capacitance node in the target capacitance area; when the capacitance difference values of a preset number of capacitance nodes or all capacitance nodes in the target capacitance region are negative values and are smaller than a preset difference threshold value, restoring the reference value of each capacitance node in the target capacitance region to the pre-update reference value of each capacitance node in the target capacitance region, wherein the preset number is smaller than or equal to the total number of the capacitance nodes in the target capacitance region.
According to a third aspect of the embodiments of the present disclosure, there is also provided an electronic apparatus, including: a processor; a memory for storing the processor-executable instructions; wherein the processor is configured to execute the instructions to implement the touch screen hit determination method as described above.
According to a fourth aspect of the embodiments of the present disclosure, there is also provided a non-transitory computer-readable storage medium, wherein instructions of the storage medium, when executed by a processor, enable the processor to execute the touch screen hit point determination method as described above.
The technical scheme provided by the embodiment of the disclosure at least brings the following beneficial effects:
in the scheme, a target capacitance node on the touch screen is determined, wherein the target capacitance node is a capacitance node of which the corresponding capacitance difference value on the touch screen meets a reporting threshold; determining a target capacitance area with a target capacitance node as a center; acquiring a capacitance difference value of each capacitance node in a target capacitance area; and determining the target capacitance node as a report point in response to the capacitance difference value of each capacitance node in the target capacitance area meeting a specified report point condition. Therefore, the capacitance difference value of each capacitance node in the target capacitance area meets the specified report point condition, the target capacitance node is determined to be the report point, the condition that the capacitance difference value caused by interference reaches the capacitance node of the report point threshold value under the interference environment can be avoided, ghost points appear on the touch screen due to the fact that the error recognition is the report point is achieved, and user experience is improved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the disclosure and are not to be construed as limiting the disclosure.
Fig. 1 is a schematic flowchart of a touch screen hit determination method according to an embodiment of the present disclosure;
FIG. 2 is a schematic diagram of a target capacitance region according to an embodiment of the disclosure;
FIG. 3 is a flowchart illustrating a touch screen hit determination method according to another embodiment of the disclosure;
FIG. 4 is a flowchart illustrating a touch screen hit determination method according to another embodiment of the disclosure;
FIG. 5 is a flowchart illustrating a touch screen hit determination method according to another embodiment of the disclosure;
FIG. 6 is a flowchart illustrating a touch screen hit determination method according to another embodiment of the disclosure;
FIG. 7 is a schematic structural diagram of a touch screen hit determination device according to an embodiment of the present disclosure;
FIG. 8 is a block diagram of an electronic device shown in accordance with an example embodiment.
Detailed Description
In order to make the technical solutions of the present disclosure better understood by those of ordinary skill in the art, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings.
It should be noted that the terms "first," "second," and the like in the description and claims of the present disclosure and in the above-described drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the disclosure described herein are capable of operation in sequences other than those illustrated or otherwise described herein. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
Fig. 1 is a flowchart illustrating a touch screen hit determination method according to an embodiment of the disclosure. It should be noted that the touch screen hit determination method according to the embodiment of the present disclosure may be applied to a touch screen hit determination device. The apparatus may be configured in an electronic device. The electronic device may be a terminal device, for example, a mobile phone, a tablet computer, a personal digital assistant, and other hardware devices with various operating systems.
As shown in fig. 1, the touch screen hit determination method may include the following steps:
It should be understood that the touch screen has been widely used in terminal devices, and the touch screen generally uses multilayer ITO (indium tin oxide) or single-layer ITO bridging to form the intersection points in the X and Y directions, which are the capacitance nodes constituting the capacitance matrix. When a finger touches the touch screen, the touch operation condition is determined by detecting the capacitance change of the capacitance node corresponding to the touch point on the touch screen.
In the embodiment of the present disclosure, the original value of the capacitor node may be a capacitance value of the current capacitor node, and the original values of the capacitor nodes at different times may be different, for example, the original value of the capacitor node may be a capacitance value when the capacitor node is touched, and the larger the touch force is, the smaller the original value of the capacitor node is; the reference value of the capacitance node may be a reference capacitance value of the capacitance node, and the reference value of the capacitance node is usually a fixed value and can be changed by updating. For example, the reference value of the capacitance node may be a capacitance value when the capacitance node is not touched, for example, when a value of a certain capacitance node is 10000 when the capacitance node is not touched, the original value is 10000, the reference value is 10000, and after the finger is touched, the original value is 9600 and the reference value is not changed. Note that the original value of the capacitance node is usually smaller than the reference value of the capacitance node.
In this disclosure, when the capacitance node is touched, the capacitance of the capacitance node corresponding to the touch point changes, and the capacitance difference of the capacitance node corresponding to the touch point can be calculated, and the capacitance difference can be the difference between the reference value of the capacitance node and the original value of the capacitance node when the capacitance node is touched, which can be specifically expressed as: capacitance difference = reference value of capacitance node-original value of capacitance node when touched. For example, if the capacitance value of a certain capacitance node is 10000 when not touched, the original value is 10000 and the reference value is 10000, and after the finger touches, the original value is 9600 and the reference value is 10000 and the capacitance difference is 400.
Optionally, a reporting threshold may be preset, and a capacitance node whose capacitance difference first meets the reporting threshold is used as the target capacitance node. The number of target capacitive nodes is typically one. For example, the reporting threshold is 150, the capacitance difference is 400, the capacitance difference is greater than the reporting threshold, and the capacitance node corresponding to the capacitance difference is the target capacitance node.
In the embodiment of the disclosure, the touch screen has a plurality of driving channels (tx) and a plurality of sensing channels (rx), wherein the driving channels may include a plurality of driving electrodes, the plurality of driving electrodes may be connected in series as the driving channels, the sensing channels may include a plurality of sensing electrodes, the plurality of sensing electrodes may be connected in series as the sensing channels, the plurality of driving channels are parallel to each other, the plurality of sensing channels are parallel to each other, the driving channels and the sensing channels are vertically overlapped, and a capacitor may be formed between the driving channels and the sensing channels. The point where the drive channel and sense channel vertically overlap may be a capacitive node. If the number of the driving channels is 20 and the number of the sensing channels is 40, tx × rx =20 × 40=800, and there are 800 capacitance nodes. In order to determine the capacitance node that is greatly affected by the touch on the touch screen, optionally, after the target capacitance node is determined, a target capacitance area centered on the target capacitance node may be determined, and the capacitance node in the target capacitance area is the capacitance node that is greatly affected by the touch. For example, as shown in fig. 2, a region corresponding to 3 × 3 capacitor nodes is set as a target capacitor region around the target capacitor node S5.
And 103, acquiring a capacitance difference value of each capacitance node in the target capacitance area.
Further, the reference value of each capacitance node in the target capacitance region is different from the original value, and a corresponding capacitance difference value is obtained.
And 104, determining the target capacitance node as a report point in response to the capacitance difference value of each capacitance node in the target capacitance area meeting the specified report point condition.
Optionally, a global mean value of the touch screen may be determined according to the capacitance difference value of each capacitance node in the target capacitance region, the global mean value of the touch screen is compared with a preset global mean value threshold according to the preset global mean value threshold, and when the global mean value is greater than or equal to the preset global mean value threshold, the capacitance difference value of each capacitance node in the target capacitance region meets a report condition, and the target capacitance node is determined to be a report. And when the target capacitance node is determined to be a report point, responding to a touch event corresponding to the target capacitance node.
In summary, a target capacitance node on the touch screen is determined, wherein the target capacitance node is a capacitance node on the touch screen whose corresponding capacitance difference value meets a reporting threshold; determining a target capacitance area with a target capacitance node as a center; acquiring a capacitance difference value of each capacitance node in a target capacitance area; and determining whether the target capacitance node is a report point or not in response to the capacitance difference value of each capacitance node in the target capacitance area meeting a specified report point condition. Therefore, when the capacitance difference value of each capacitance node in the target capacitance area meets the specified report point condition, the target capacitance node is determined to be the report point, only when the target capacitance node is the report point, the touch event corresponding to the report point on the touch screen can be responded, the interference environment can be avoided, the capacitance difference value caused by interference reaches the capacitance node of the report point threshold value, the error recognition is the report point, ghost points appear on the touch screen, and the user experience is improved.
To improve the accuracy of determining a target capacitive node as a touch point, fig. 3 is a flowchart of a touch screen touch point determining method according to another embodiment of the disclosure. In the embodiment of the present disclosure, when the capacitance difference of the target capacitance node is the largest, the capacitance difference of each capacitance node in the target capacitance region is obtained. The embodiment shown in fig. 3 may include the following steps:
In the embodiment of the present disclosure, the number of the target capacitance nodes is one, the touch time point of the target capacitance node may be used as a detection time point, the capacitance difference value of the target capacitance node is obtained in real time in a preset time period after the detection time point, a plurality of capacitance difference values of the target capacitance node obtained in the preset time period are compared, a maximum value of the capacitance difference value of the target capacitance node is obtained, and the time point when the capacitance difference value of the target capacitance node is maximum is used as the target time point. In other embodiments, the number of the target capacitance nodes may be multiple.
And 304, acquiring the capacitance difference value of each capacitance node in the target capacitance area at the target time point.
Further, at a target time point, an original value and a reference value of each capacitance node in the target capacitance region are obtained, and a capacitance difference value of each capacitance node in the target capacitance region is determined according to the original value and the reference value of each capacitance node in the target capacitance region.
It should be noted that, the steps 301, 302, and 305 may be implemented by any way in each embodiment of the present disclosure, and the embodiment of the present disclosure does not limit this and is not described again.
In summary, a detection time point of the target capacitance node is determined, and a target time point in a preset time period after the detection time point is obtained, wherein the target time point is a time point in the preset time period at which a capacitance difference value of the target capacitance node is maximum; and acquiring the capacitance difference value of each capacitance node in the target capacitance area at the target time point. Therefore, when the difference value of the target capacitance node is maximum, the capacitance difference value of each capacitance node in the target capacitance area is obtained, and when the capacitance difference value of each capacitance node in the target capacitance area meets the specified report point condition, the target capacitance node is determined to be a report point, so that the accuracy of determining the target capacitance node to be the report point can be improved.
In order to accurately determine whether the capacitance difference value of each capacitance node in the target capacitance region meets the report condition, as shown in fig. 4, fig. 4 is a schematic flow chart of a report determination method of a touch screen according to another embodiment of the present disclosure. In this disclosure, a global mean value on the touch screen may be determined according to capacitance difference values of each capacitance node in the target capacitance region and the total number of capacitance nodes on the touch screen, and whether the capacitance difference values of each capacitance node in the target capacitance region satisfy a reporting condition may be determined according to the global mean value and a preset global mean value threshold, where the embodiment shown in fig. 4 may include the following steps:
And step 403, acquiring a capacitance difference value of each capacitance node in the target capacitance area.
In the embodiment of the present disclosure, the capacitance difference values of the capacitance nodes in the target capacitance region may be added, and the addition result may be used as the sum of the capacitance difference values of the capacitance nodes in the target capacitance region.
And step 405, determining a global mean value on the touch screen according to the sum and the total number of the capacitance nodes on the touch screen.
Further, comparing the sum of the capacitance differences of the capacitance nodes in the target capacitance area with the total number of the capacitance nodes on the touch screen, and taking the comparison result as a global average value on the touch screen. For example, the sum of the capacitance differences of the capacitance nodes in the target capacitance region is 2500, the total number of capacitance nodes on the touch screen is 800, and the global mean on the touch screen =2500/800= 3.125. It should be noted that, in order to make the global mean value on the touch screen more accurate, the capacitance difference value of each capacitance node in the target capacitance region may be obtained by detecting the target capacitance node on the touch screen for multiple times, and then the global mean value on the touch screen is determined according to the sum of the capacitance difference values of each capacitance node in the target capacitance region and the total number of the capacitance nodes on the touch screen.
And step 406, in response to that the global mean value is smaller than a preset global mean value threshold, determining that the capacitance difference value of each capacitance node in the target capacitance area does not meet the reporting condition, and determining that the target capacitance node is a non-reporting point.
In the embodiment of the disclosure, a global mean threshold may be preset, after the global mean is obtained, the global mean may be compared with a preset global mean threshold, when the global mean is smaller than the preset global mean threshold, a capacitance difference value of each capacitance node in a target capacitance region does not satisfy a reporting condition, the capacitance difference value of the target capacitance node may be used as a capacitance difference value caused by interference, and the target capacitance node is determined to be a non-reporting point; and when the global mean value is greater than or equal to a preset global mean value threshold value, the capacitance difference value of each capacitance node in the target capacitance area meets a report point condition, and the target capacitance node is determined to be a report point. For example, the global mean value is 3.125, the preset global mean value threshold is 2, the global mean value is greater than the preset global mean value threshold, the capacitance difference value of each capacitance node in the target capacitance region meets the report point condition, and the target capacitance node can be determined to be a report point; for another example, the global mean value is 3.125, the global mean value threshold is 4, the global mean value is smaller than the preset global mean value threshold, the capacitance difference value of each capacitance node in the target capacitance region does not satisfy the reporting condition, and the target capacitance node can be determined to be a non-reporting point. When the target capacitance node is determined to be a non-reporting point, a touch event corresponding to the non-reporting point on the touch screen is not responded, so that the non-reporting point is prevented from being identified as a ghost point to respond.
It should be noted that, the steps 401-403 may be implemented by any method in various embodiments of the present disclosure, and the embodiments of the present disclosure are not limited to this and are not described again.
In conclusion, the sum of the capacitance differences of all capacitance nodes in the target capacitance area is determined; determining a global mean value on the touch screen according to the sum and the total number of the capacitance nodes on the touch screen; responding to the fact that the global mean value is smaller than a preset global mean value threshold value, and determining that the capacitance difference value of each capacitance node in the target capacitance area does not meet a reporting condition; and determining that the capacitance difference value of each capacitance node in the target capacitance area meets a reporting condition in response to the fact that the global mean value is larger than or equal to the global mean value threshold. Therefore, the global mean value of the touch screen is determined according to the capacitance difference value of each capacitance node in the target capacitance area and the total number of the capacitance nodes on the touch screen, and whether the capacitance difference value of each capacitance node in the target capacitance area meets the report condition or not can be accurately determined according to the global mean value and a preset global mean value threshold.
In order to improve the detection accuracy of the touch action in the interference environment, as shown in fig. 5, fig. 5 is a flowchart of a touch screen hit determination method according to another embodiment of the disclosure. In the embodiment of the disclosure, when the capacitance difference value of each capacitance node in the target capacitance region does not satisfy the reporting condition, the reference value of each capacitance node in the target capacitance region may be updated according to the original value of each capacitance node in the target capacitance region. The embodiment shown in fig. 5 may include the following steps:
And 505, in response to that the capacitance difference value of each capacitance node in the target capacitance region does not meet the reporting condition, updating the reference value of each capacitance node in the target capacitance region according to the original value of each capacitance node in the target capacitance region, and storing the pre-update reference value of each capacitance node in the target capacitance region.
Optionally, when the capacitance difference value of each capacitance node in the target capacitance region does not satisfy the reporting condition, that is, when the target capacitance node is a non-reporting point, the current original value of each capacitance node in the target capacitance region may be used as the reference value of each capacitance node in the target capacitance region. For example, the current original value of a certain capacitance node in the target capacitance region is 9850, the reference value of the capacitance node is updated according to the current original value, the updated reference value is 9850, and the capacitance difference of the capacitance node in the target capacitance region is 0. When the target capacitance node is a non-reporting point, the original value of each capacitance node in the target capacitance area can be used as the reference value of each capacitance node in the target capacitance area, the target capacitance node is a non-reporting point under the interference environment and cannot be influenced, and the detection accuracy of the touch action under the interference environment can be improved. In addition, in order to facilitate the update of each capacitance node in the target capacitance region, the pre-update reference value of each capacitance node in the target capacitance region may be stored.
It should be noted that, the steps 501-504 may be implemented by any method in various embodiments of the present disclosure, and the embodiments of the present disclosure are not limited to this and are not described again.
In summary, in response to that the capacitance difference value of each capacitance node in the target capacitance region does not satisfy the reporting condition, the reference value of each capacitance node in the target capacitance region is updated according to the original value of each capacitance node in the target capacitance region, and the pre-update reference value of each capacitance node in the target capacitance region is stored. Therefore, the detection accuracy of the touch action can be improved in the interference environment, the pre-update reference value of each capacitance node in the target capacitance area can be stored, and the updating of each capacitance node in the target capacitance area can be facilitated.
In order to improve the detection accuracy of the touch action in the non-interference environment, as shown in fig. 6, fig. 6 is a flowchart of a touch screen hit point determination method according to another embodiment of the present disclosure. In the embodiment of the disclosure, after the reference value of each capacitance node in the target capacitance region is updated according to the original value of each capacitance node in the target capacitance region, when the capacitance difference values of a preset number of capacitance nodes in the target capacitance region are negative values and are smaller than a preset difference threshold value, the reference value of each capacitance node in the target capacitance region is restored to the pre-update reference value of each capacitance node in the target capacitance region. The embodiment shown in fig. 6 may include the following steps:
In step 602, a target capacitance region centered on a target capacitance node is determined.
And 606, acquiring the capacitance difference value of each capacitance node in the target capacitance area again.
In the embodiment of the present disclosure, the original value of each capacitance node in the target capacitance region may be detected, and when it is detected that the original value of each capacitance node in the target capacitance region changes greatly, the capacitance difference value of each capacitance node in the target capacitance region may be obtained according to the updated reference value of each capacitance node in the target capacitance region and the original value of the current time.
In the embodiment of the disclosure, a difference threshold may be preset, and when the capacitance difference of a preset number of capacitance nodes in the target capacitance region is a negative value and is smaller than the preset difference threshold, it indicates that the touch screen has left the interference region, and the reference value of each capacitance node in the target capacitance region may be restored to the pre-update reference value of each capacitance node in the target capacitance region. For example, the pre-update reference value of a certain capacitance node in the target capacitance region is 10000, and the reference value of the capacitance node in the target capacitance region is restored to 10000.
In conclusion, the capacitance difference value of each capacitance node in the target capacitance area is obtained again; when the capacitance difference values of the preset number of capacitance nodes in the target capacitance area are negative values and are smaller than a preset difference threshold value, restoring the reference value of each capacitance node in the target capacitance area to the pre-update reference value of each capacitance node in the target capacitance area; the preset number is smaller than or equal to the total number of the capacitance nodes in the target capacitance region, the size of the preset number is not limited in the embodiment of the disclosure, and the size of the preset number can be set according to specific needs. Thus, the touch detection accuracy in a non-interference environment can be improved.
The touch screen report point determining method of the embodiment of the disclosure determines a target capacitance node on a touch screen, wherein the target capacitance node is a capacitance node of which a corresponding capacitance difference value on the touch screen meets a report point threshold value; determining a target capacitance area with a target capacitance node as a center; acquiring a capacitance difference value of each capacitance node in a target capacitance area; and determining the target capacitance node as a report point in response to the capacitance difference value of each capacitance node in the target capacitance area meeting a specified report point condition. Therefore, the capacitance difference value of each capacitance node in the target capacitance area meets the specified report point condition, the target capacitance node is determined to be the report point, the condition that the capacitance difference value caused by interference reaches the capacitance node of the report point threshold value under the interference environment can be avoided, ghost points appear on the touch screen due to the fact that the error recognition is the report point is achieved, and user experience is improved.
In order to implement the above embodiments, the embodiment of the present disclosure further provides a touch screen touch point reporting determination device. As shown in fig. 7, fig. 7 is a schematic structural diagram of a hit determination device of a touch screen according to an embodiment of the present disclosure. The touch screen hit determination device 700 includes: a first determining module 710, a second determining module 720, an obtaining module 730, and a third determining module 740.
The first determining module 710 is configured to determine a target capacitance node on the touch screen, where the target capacitance node is a capacitance node on the touch screen where a corresponding capacitance difference value meets a threshold; a second determining module 720, configured to determine a target capacitance region centered on the target capacitance node; an obtaining module 730, configured to obtain a capacitance difference value of each capacitance node in the target capacitance region; the third determining module 740 is configured to determine the target capacitance node as a report point in response to that the capacitance difference value of each capacitance node in the target capacitance region satisfies a specified report point condition.
As a possible implementation manner of the embodiment of the present disclosure, the touch screen hit determining apparatus 700 further includes: and a fourth determination module.
The fourth determining module is used for determining the detection time point of the target capacitance node; the obtaining module 730 is specifically configured to: acquiring a target time point in a preset time period after the detection time point, wherein the target time point is the time point with the maximum capacitance difference value of a target capacitance node in the preset time period; and acquiring the capacitance difference value of each capacitance node in the target capacitance area at the target time point.
As a possible implementation manner of the embodiment of the present disclosure, the third determining module 740 is further configured to: determining the sum of capacitance differences of each capacitance node in the target capacitance area; determining a global mean value on the touch screen according to the sum and the total number of the capacitance nodes on the touch screen; responding to the fact that the global mean value is smaller than a preset global mean value threshold value, and determining that the capacitance difference value of each capacitance node in the target capacitance area does not meet a reporting condition; and determining that the capacitance difference value of each capacitance node in the target capacitance area meets a reporting condition in response to the fact that the global mean value is larger than or equal to the global mean value threshold.
As a possible implementation manner of the embodiment of the present disclosure, the capacitance difference value is determined according to an original value of the capacitance node and a reference value; the touch screen hit determination apparatus 700 further includes: and updating the module.
The updating module is used for responding that the capacitance difference value of each capacitance node in the target capacitance area does not meet the reporting condition, updating the reference value of each capacitance node in the target capacitance area according to the original value of each capacitance node in the target capacitance area, and storing the reference value before updating of each capacitance node in the target capacitance area.
As a possible implementation manner of the embodiment of the present disclosure, the update module is further configured to: re-acquiring the capacitance difference value of each capacitance node in the target capacitance area; when the capacitance difference values of the preset number of capacitance nodes in the target capacitance region are negative values and are smaller than a preset difference threshold value, restoring the reference value of each capacitance node in the target capacitance region to the pre-update reference value of each capacitance node in the target capacitance region, wherein the preset number is smaller than or equal to the total number of the capacitance nodes in the target capacitance region.
The touch screen report point determining device of the embodiment of the disclosure determines a target capacitance node on a touch screen, wherein the target capacitance node is a capacitance node of which a corresponding capacitance difference value on the touch screen meets a report point threshold value; determining a target capacitance area with a target capacitance node as a center; acquiring a capacitance difference value of each capacitance node in a target capacitance area; and determining the target capacitance node as a report point in response to the capacitance difference value of each capacitance node in the target capacitance area meeting a specified report point condition. Therefore, the capacitance difference value of each capacitance node in the target capacitance area meets the specified report point condition, the target capacitance node is determined to be the report point, the condition that the capacitance difference value caused by interference reaches the capacitance node of the report point threshold value under the interference environment can be avoided, ghost points appear on the touch screen due to the fact that the error recognition is the report point is achieved, and user experience is improved.
To implement the above embodiments, the present disclosure also proposes a non-transitory computer-readable storage medium.
Wherein the instructions in the storage medium, when executed by a processor of the electronic device, enable the electronic device to perform the method as described above.
To implement the above embodiments, the present disclosure also provides a computer program product.
Wherein the computer program product, when executed by a processor of an electronic device, enables the electronic device to perform the method as described above.
FIG. 8 is a block diagram of an electronic device shown in accordance with an example embodiment. The electronic device shown in fig. 8 is only an example, and should not bring any limitation to the functions and the scope of use of the embodiments of the present disclosure.
As shown in fig. 8, an electronic device 800 includes a processor 801 that may perform various appropriate actions and processes in accordance with a program stored in a Read Only Memory (ROM) 802 or a program loaded from a Memory 806 into a Random Access Memory (RAM) 803. In the RAM 803, various programs and data necessary for the operation of the electronic apparatus 800 are also stored. The processor 801, the ROM 802, and the RAM 803 are connected to each other by a bus 804. An Input/Output (I/O) interface 805 is also connected to bus 804.
The following components are connected to the I/O interface 805: a memory 806 including a hard disk or the like; and a communication section 807 including a Network interface card such as a LAN (Local Area Network) card, a modem, or the like, the communication section 807 performing communication processing via a Network such as the internet; a drive 808 is also connected to the I/O interface 805 as necessary.
In particular, according to an embodiment of the present disclosure, the processes described above with reference to the flowcharts may be implemented as computer software programs. For example, embodiments of the present disclosure include a computer program, carried on a computer readable medium, containing program code for performing the method illustrated in the flow chart. In such an embodiment, the computer program can be downloaded and installed from a network through the communication section 807. The computer program, when executed by the processor 801, performs the above-described functions defined in the methods of the present disclosure.
In an exemplary embodiment, a storage medium comprising instructions, such as a memory comprising instructions, executable by the processor 801 of the electronic device 800 to perform the above-described method is also provided. Alternatively, the storage medium may be a non-transitory computer readable storage medium, which may be, for example, a ROM, a Random Access Memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.
In the present disclosure, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. In contrast, in the present disclosure, a computer-readable signal medium may include a propagated data signal with computer-readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take many forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to: wireless, wire, fiber optic cable, RF, etc., or any suitable combination of the foregoing.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (12)
1. A touch screen report point determining method is characterized by comprising the following steps:
determining a target capacitance node on a touch screen, wherein the target capacitance node is a capacitance node of which a corresponding capacitance difference value on the touch screen meets a threshold value of a reporting point, and the capacitance difference value is a difference value between a reference value of the target capacitance node and an original value of the target capacitance node when the target capacitance node is touched;
determining a target capacitance area centered on the target capacitance node;
acquiring a capacitance difference value of each capacitance node in the target capacitance area;
determining the target capacitance node as a report point in response to the capacitance difference value of each capacitance node in the target capacitance region meeting a specified report point condition, including:
and determining a global mean value on the touch screen according to the capacitance difference value of each capacitance node in the target capacitance area and the total number of the capacitance nodes on the touch screen, and determining whether the capacitance difference value of each capacitance node in the target capacitance area meets a report condition or not according to the global mean value and a preset global mean value threshold.
2. The method of claim 1, further comprising: determining a detection time point of the target capacitance node;
the obtaining of the capacitance difference value of each capacitance node in the target capacitance region includes:
acquiring a target time point in a preset time period after the detection time point, wherein the target time point is the time point with the maximum capacitance difference value of the target capacitance node in the preset time period;
and acquiring the capacitance difference value of each capacitance node in the target capacitance area at the target time point.
3. The method according to claim 1 or 2, characterized in that the method further comprises:
determining the sum of capacitance differences of each capacitance node in the target capacitance area;
determining a global mean value on the touch screen according to the sum and the total number of the capacitance nodes on the touch screen;
responding to the fact that the global mean value is smaller than a preset global mean value threshold value, and determining that the capacitance difference value of each capacitance node in the target capacitance area does not meet the report point condition;
and determining that the capacitance difference value of each capacitance node in the target capacitance area meets the report point condition in response to the global mean value being greater than or equal to the global mean value threshold.
4. The method of claim 1, wherein the capacitance difference value is determined from an original value of a capacitance node and a reference value;
the method further comprises the following steps:
and in response to that the capacitance difference value of each capacitance node in the target capacitance area does not meet the reporting condition, updating the reference value of each capacitance node in the target capacitance area according to the original value of each capacitance node in the target capacitance area, and storing the reference value before updating of each capacitance node in the target capacitance area.
5. The method of claim 4, further comprising, after updating the reference value of each capacitive node in the target capacitive region according to the original value of each capacitive node in the target capacitive region:
re-acquiring the capacitance difference value of each capacitance node in the target capacitance area;
when the capacitance difference values of a preset number of capacitance nodes in the target capacitance region are negative values and are smaller than a preset difference threshold value, restoring the reference value of each capacitance node in the target capacitance region to the pre-update reference value of each capacitance node in the target capacitance region; wherein the preset number is less than or equal to the total number of capacitive nodes within the target capacitive area.
6. An apparatus for determining a touch screen hit, comprising:
the touch screen display control device comprises a first determination module, a second determination module and a third determination module, wherein the first determination module is used for determining a target capacitance node on a touch screen, the target capacitance node is a capacitance node of which a corresponding capacitance difference value on the touch screen meets a reporting threshold, and the capacitance difference value is a difference value between a reference value of the target capacitance node and an original value of the target capacitance node when the target capacitance node is touched;
a second determining module, configured to determine a target capacitance region centered on the target capacitance node;
the acquisition module is used for acquiring a capacitance difference value of each capacitance node in the target capacitance area;
a third determining module, configured to determine, in response to that a capacitance difference value of each capacitance node in the target capacitance region meets a specified reporting condition, that the target capacitance node is a reporting point, where the determining module includes:
and determining a global mean value on the touch screen according to the capacitance difference value of each capacitance node in the target capacitance area and the total number of the capacitance nodes on the touch screen, and determining whether the capacitance difference value of each capacitance node in the target capacitance area meets a report condition or not according to the global mean value and a preset global mean value threshold.
7. The apparatus of claim 6, further comprising:
a fourth determining module, configured to determine a detection time point of the target capacitance node;
the acquisition module is specifically configured to:
acquiring a target time point in a preset time period after the detection time point, wherein the target time point is the time point with the maximum capacitance difference value of the target capacitance node in the preset time period;
and acquiring the capacitance difference value of each capacitance node in the target capacitance area at the target time point.
8. The apparatus of claim 6 or 7, wherein the third determining module is further configured to:
determining the sum of capacitance differences of each capacitance node in the target capacitance area;
determining a global mean value on the touch screen according to the sum and the total number of the capacitance nodes on the touch screen;
responding to the fact that the global mean value is smaller than a preset global mean value threshold value, and determining that the capacitance difference value of each capacitance node in the target capacitance area does not meet the report point condition;
and determining that the capacitance difference value of each capacitance node in the target capacitance area meets the report point condition in response to the global mean value being greater than or equal to the global mean value threshold.
9. The apparatus of claim 6, wherein the capacitance difference value is determined according to an original value of the capacitance node and a reference value;
the device further comprises:
and the updating module is used for responding that the capacitance difference value of each capacitance node in the target capacitance area does not meet the reporting condition, updating the reference value of each capacitance node in the target capacitance area according to the original value of each capacitance node in the target capacitance area, and storing the reference value before updating of each capacitance node in the target capacitance area.
10. The apparatus of claim 9, wherein the update module is further configured to:
re-acquiring the capacitance difference value of each capacitance node in the target capacitance area;
when the capacitance difference value of a preset number of capacitance nodes in the target capacitance region is a negative value and is smaller than a preset difference threshold value, restoring the reference value of each capacitance node in the target capacitance region to the pre-update reference value of each capacitance node in the target capacitance region, wherein the preset number is smaller than or equal to the total number of the capacitance nodes in the target capacitance region.
11. An electronic device, comprising:
a processor;
a memory for storing the processor-executable instructions;
wherein the processor is configured to execute the instructions to implement a touch screen hit determination method according to any one of claims 1 to 5.
12. A non-transitory computer readable storage medium, instructions in which, when executed by a processor, enable the processor to perform a touch screen hit determination method as claimed in any one of claims 1 to 5.
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