CN113138696A - Method and device for identifying specification of touch object contact and storage medium - Google Patents
Method and device for identifying specification of touch object contact and storage medium Download PDFInfo
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- CN113138696A CN113138696A CN202110485791.1A CN202110485791A CN113138696A CN 113138696 A CN113138696 A CN 113138696A CN 202110485791 A CN202110485791 A CN 202110485791A CN 113138696 A CN113138696 A CN 113138696A
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- contact
- mode
- touch substrate
- elastic wave
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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
- G06F3/0442—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using active external devices, e.g. active pens, for transmitting changes in electrical potential to be received by the digitiser
Abstract
A method, apparatus and storage medium for identifying a touch object contact specification, wherein the method comprises: acquiring an elastic wave signal generated when the contact is contacted with the touch substrate, and determining the material of the contact according to the elastic wave signal; judging a contact mode of the contact and the touch substrate; and when the contact mode of the contact and the touch substrate is judged to be the first contact mode, determining the specification of the contact according to the material of the contact. This application can improve the discernment degree of accuracy of contact specification.
Description
Technical Field
The present disclosure relates to touch technologies, and more particularly, to a method and an apparatus for identifying specifications of a touch object, and a storage medium.
Background
In order to improve the experience of users using a conference whiteboard or an education whiteboard, the conventional whiteboard supports the function of changing the color of handwriting according to the specification of a contact of a writing tool and the whiteboard. For example, infrared transceivers are arranged on the white board frame, as shown in fig. 1, infrared grids which are crossed horizontally and vertically are formed, when the contact head is in contact with the white board, contact parameters are determined according to the area of the infrared grids shielded by the contact head, and the specification of the contact head is determined according to the contact parameters.
The method for judging the specification of the contact has the possibility of misjudgment, for example, a thin writing tool contacting the whiteboard inclines for a certain angle to increase contact parameters between the contact and the whiteboard, and under the condition, the contact with the thin specification may be misjudged as the contact with the thick specification, so that the wrong handwriting color is output; or, the contact parameter between the stylus and the whiteboard is reduced due to the fact that the thick writing tool in contact with the whiteboard is inclined by a certain angle, in this case, the stylus with the thick specification may be mistakenly judged as the stylus with the thin specification, and a wrong handwriting color may be output. The aforementioned misjudgment of the contact specification affects the user experience.
Disclosure of Invention
The application provides a method and a device for identifying the specification of a contact of a touch object and a storage medium, which can improve the identification accuracy of the specification of the contact.
The application provides a method for identifying the specification of a touch object contact, which comprises the following steps: acquiring an elastic wave signal generated when the contact is contacted with the touch substrate, and determining the material of the contact according to the elastic wave signal; judging a contact mode of the contact and the touch substrate; and when the contact mode of the contact and the touch substrate is judged to be the first contact mode, determining the specification of the contact according to the material of the contact.
Further, the method further comprises: acquiring contact parameters of the contact head and the touch substrate; and when the contact mode of the contact and the touch substrate is judged to be the second contact mode, determining the specification of the contact according to the contact parameters or the contact material.
Further, the judging the contact mode of the contact head and the touch substrate comprises: determining a contact mode of the contact with the touch substrate according to the elastic wave signal: and comparing the signal characteristics of the elastic wave signals with the signal characteristics in a signal characteristic library, and determining the contact mode of the contact and the touch substrate according to the comparison result, wherein the signal characteristics of the elastic wave signals corresponding to the contacts with different specifications under the contact of the contacts with the touch substrate in a first contact mode and a second contact mode are stored in the signal characteristic library.
Further, the judging the contact mode of the contact head and the touch substrate comprises: and determining a contact mode of the contact and the touch substrate according to the elastic wave signal and the contact parameter.
Further, determining a contact mode of the contact with the touch substrate according to the elastic wave signal and the contact parameter includes: judging a contact mode of the contact and the touch substrate according to the elastic wave signal; when the contact parameter belongs to a preset contact range value of a contact of a first specification or a contact range value of a contact of a second specification, but the contact parameter is out of a contact range value corresponding to a contact material determined according to the elastic wave signal, if the contact mode is determined to be the first contact mode according to the elastic wave signal, the contact mode of the contact and the touch substrate is determined to be the first contact mode, and the contact range value of the contact of the second specification is larger than the contact range value of the contact of the first specification.
Further, determining a contact mode of the contact with the touch substrate according to the elastic wave signal and the contact parameter, further comprising: and when the contact parameter belongs to a preset contact range value of a contact of a first specification or a preset contact range value of a contact of a second specification and the contact parameter is within a contact range value corresponding to the contact material determined according to the elastic wave signal, determining that the contact mode of the contact and the touch substrate is a second contact mode.
Further, determining a contact mode of the contact with the touch substrate according to the elastic wave signal and the contact parameter, further comprising: when the contact parameter is between a preset contact range value of a contact of a first specification and a contact range value of a contact of a second specification or exceeds the contact range value of the contact of the second specification, judging whether the distance between the contact parameter and the contact range value corresponding to the contact material determined according to the elastic wave signal is smaller than a preset value, and if so, determining that the contact mode of the contact and the touch substrate is a first contact mode; if not, the contact mode of the contact and the touch substrate is determined to be a first contact mode or a second contact mode by default, and the contact range value of the second specification contact is larger than that of the first specification contact.
Further, determining a contact mode of the contact with the touch substrate according to the elastic wave signal and the contact parameter, further comprising: and when the contact parameter is smaller than a preset contact range value of the first specification contact, judging that the contact is invalid.
The present application also provides a computer readable storage medium storing one or more programs executable by one or more processors to implement the method for touch object contact specification identification as described above.
The application also provides a device for identifying the specification of the touching object, which comprises a memory and a processor, wherein the memory stores a program, and the program realizes the method for identifying the specification of the touching object contact when being read and executed by the processor.
According to the technical scheme, the contact specification is determined through the contact material determined according to the elastic wave signal generated when the contact is contacted with the touch substrate, the contact specification is determined according to the contact and the contact parameter of the touch substrate, the influence of the writing posture is small, and the obtained contact specification is more accurate.
Additional features and advantages of the application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the application. Other advantages of the present application may be realized and attained by the instrumentalities and combinations particularly pointed out in the specification and the drawings.
Drawings
The accompanying drawings are included to provide an understanding of the present disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the examples serve to explain the principles of the disclosure and not to limit the disclosure.
Fig. 1 is a schematic diagram of a related art whiteboard having an infrared transceiver;
FIG. 2 is a flowchart of a method for identifying a specification of a touch object contact according to an embodiment of the present disclosure;
fig. 3 is a schematic view of a touch substrate provided with a plurality of elastic wave sensors according to an embodiment of the present application;
FIG. 4 is a flow chart of another method for identifying a touch object contact specification according to an embodiment of the present disclosure;
fig. 5 is a block diagram of an identification apparatus for the specification of a touch object contact according to an embodiment of the present application.
Detailed Description
The present application describes embodiments, but the description is illustrative rather than limiting and it will be apparent to those of ordinary skill in the art that many more embodiments and implementations are possible within the scope of the embodiments described herein. Although many possible combinations of features are shown in the drawings and discussed in the detailed description, many other combinations of the disclosed features are possible. Any feature or element of any embodiment may be used in combination with or instead of any other feature or element in any other embodiment, unless expressly limited otherwise.
The present application includes and contemplates combinations of features and elements known to those of ordinary skill in the art. The embodiments, features and elements disclosed in this application may also be combined with any conventional features or elements to form a unique inventive concept as defined by the claims. Any feature or element of any embodiment may also be combined with features or elements from other inventive aspects to form yet another unique inventive aspect, as defined by the claims. Thus, it should be understood that any of the features shown and/or discussed in this application may be implemented alone or in any suitable combination. Accordingly, the embodiments are not limited except as by the appended claims and their equivalents. Furthermore, various modifications and changes may be made within the scope of the appended claims.
Further, in describing representative embodiments, the specification may have presented the method and/or process as a particular sequence of steps. However, to the extent that the method or process does not rely on the particular order of steps set forth herein, the method or process should not be limited to the particular sequence of steps described. Other orders of steps are possible as will be understood by those of ordinary skill in the art. Therefore, the particular order of the steps set forth in the specification should not be construed as limitations on the claims. Further, the claims directed to the method and/or process should not be limited to the performance of their steps in the order written, and one skilled in the art can readily appreciate that the sequences may be varied and still remain within the spirit and scope of the embodiments of the present application.
The embodiment of the invention provides a method for identifying the specification of a touch object contact, which comprises the following steps of:
step S201, acquiring an elastic wave signal generated when a contact head is contacted with a touch substrate, and determining the material of the contact head according to the elastic wave signal;
in this embodiment, the touch substrate includes a glass plate, a wood plate, a metal plate, or the like capable of generating an elastic wave signal, or an existing touch screen, non-touch screen, or the like; in practical use, elastic wave signals generated by the touch substrate due to contact can be collected through the elastic wave sensor; the elastic wave sensor may be a piezoelectric sensor;
step S202, judging a contact mode of the contact and the touch substrate;
step S203, when the contact mode of the contact and the touch substrate is judged to be the first contact mode, determining the specification of the contact according to the material of the contact; the first contact mode refers to that in the contact mode, the contact angle of the contact and the touch substrate is larger than or equal to a preset threshold value;
in the first contact mode, the contact material is determined according to the elastic wave signal generated when the contact is contacted with the touch substrate, the contact specification is determined according to the contact material, and the contact specification is determined according to the contact parameter of the contact and the touch substrate, so that the obtained contact specification is more accurate.
In an exemplary embodiment, the contact parameters include at least one of: the contact area, the length of the contact area, and the width of the contact area.
The embodiment of the invention also provides another identification method of the specification of the touch object contact, as shown in fig. 4, the method comprises the following steps:
step S401, acquiring an elastic wave signal generated when a contact head is contacted with a touch substrate, and determining the material of the contact head according to the elastic wave signal;
step S402, acquiring contact parameters of the contact and the touch substrate;
FIG. 3 is a schematic view of a touch substrate with a plurality of elastic wave sensors, wherein the touch substrate is a whiteboard with an infrared transceiver; when the touch pen is contacted with the whiteboard, the whiteboard generates elastic wave signals, the elastic wave signals are collected through a plurality of elastic wave sensors arranged on the frame of the whiteboard, and contact parameters are obtained by utilizing an infrared detection technology;
although the embodiment takes the obtaining of the contact parameter as a subsequent step of determining the material of the contact, in actual implementation, the obtaining of the contact parameter may be performed before the material of the contact is determined, or performed in parallel;
step S403, judging a contact mode of the contact head and the touch substrate;
step S404, when the contact mode of the contact and the touch substrate is judged to be a first contact mode, determining the specification of the contact according to the material of the contact;
and step S405, when the contact mode of the contact and the touch substrate is judged to be the second contact mode, determining the specification of the contact according to the contact parameters or the contact material.
In this embodiment, the first contact mode refers to a contact angle between the contact and the touch substrate in the contact mode being greater than or equal to a preset threshold; the second contact mode refers to an angle at which the contact angle of the contact with the touch substrate is greater than 0 and less than a preset threshold value, or equal to 0 in the contact mode.
In the embodiment, when the contact is in inclined contact with the touch substrate and the inclined contact angle is greater than a preset threshold value, the specification of the contact is determined according to the material of the contact; when the contact is in vertical contact or inclined contact with the touch substrate and the inclination contact angle is smaller than a preset threshold value, the contact specification is determined according to contact parameters or contact materials, and the accuracy of the obtained contact specification is guaranteed.
In an exemplary embodiment, determining a contact material from the elastic wave signal includes: acquiring signal characteristics of the elastic wave signal, wherein the signal characteristics comprise: the ratio coefficient of frequency; and identifying the material of the contact according to the signal characteristics. Because the contact of different materials and touch-sensitive screen contact back, there is the difference through the signal characteristic of the elastic wave signal of elastic wave sensor collection, and this embodiment utilizes this kind of difference to realize the discernment to the contact material, has improved the rate of accuracy of contact material discernment.
In an exemplary embodiment, the manner of obtaining the duty ratio of the frequency of the elastic wave signal may include: determining a ratio coefficient of an appointed frequency band or an appointed frequency point based on a ratio of an amplitude parameter of an elastic wave signal serving as a frequency domain signal on the appointed frequency band or the appointed frequency point to the sum of amplitudes of the elastic wave signal in a full frequency band; the magnitude parameter may be: any one of amplitude, sum of amplitude, maximum amplitude, average amplitude, and difference between maximum and minimum amplitude.
In another exemplary embodiment, the manner of obtaining the duty ratio of the frequency of the elastic wave signal may include: determining a ratio coefficient of a specified frequency band or a specified frequency point based on a ratio of an amplitude parameter of a corrected elastic wave signal serving as a frequency domain signal on the specified frequency band or the specified frequency point to the sum of amplitudes of the corrected elastic wave signal in a full frequency band; the method for acquiring the modified elastic wave signal may include: taking an envelope signal of the elastic wave signal as a frequency domain signal as a modified elastic wave signal; or, the elastic wave signal as the frequency domain signal is subjected to a low-pass filter to obtain a corrected elastic wave signal.
In an exemplary embodiment, the signal features may include other features, such as one or more of auxiliary time-domain signal features and auxiliary frequency-domain signal features, in addition to the fractional coefficients of frequency; the auxiliary time-domain signal feature may be a standard deviation or a variance of an elastic wave serving as a time-domain signal or other time-domain signal features; the auxiliary frequency domain signal characteristic can be the amplitude sum of the elastic wave serving as the frequency domain signal in a specified frequency band, or the amplitude difference value in the specified frequency band, or other frequency domain signal characteristics; the embodiment increases the types of the signal features for material identification, and can further improve the identification accuracy.
In an exemplary embodiment, identifying the contact material based on the signal characteristics includes: for each preset contact material, determining the probability that the contact material to be identified is the preset contact material according to the acquired signal characteristics; determining the preset contact material corresponding to the obtained maximum probability value as the material of the contact to be identified; the preset contact can be made of plastics, rubber and the like.
In an exemplary embodiment, determining the probability that the contact material to be identified is the preset contact material according to the acquired signal characteristics includes: comparing the acquired signal characteristics with the signal characteristics corresponding to each preset contact material, and determining the probability that the contact material to be identified is the preset contact material according to the similarity obtained by comparison; or inputting the acquired signal characteristics into a recognition model of the contact material, and determining the probability that the contact material to be recognized is each preset contact material according to the recognition result of the recognition model, wherein the recognition model is obtained by training according to signal characteristic sample data corresponding to all preset contact materials.
In an exemplary embodiment, determining the contact mode of the contact with the touch substrate includes:
determining a contact mode of the contact with the touch substrate according to the elastic wave signal: and comparing the signal characteristics of the elastic wave signals with the signal characteristics in a signal characteristic library, and determining the contact mode of the contact and the touch substrate according to the comparison result, wherein the signal characteristics of the elastic wave signals corresponding to the contact and the touch substrate with different specifications in the first contact mode and the second contact mode are stored in the signal characteristic library. Under different contact modes, the touch substrate bears different pressures, the touch substrate deforms differently, and further the generated elastic wave signals are different, for example, when the contact is knocking the touch substrate, namely the contact is in vertical contact with the touch substrate, the pressure borne by the touch substrate is larger, the force can inhibit the rebound of the touch substrate, so that in the vertical contact process, the vibration amplitude of the touch substrate is larger, the vibration frequency is smaller, and therefore the elastic wave signals are also larger in amplitude and smaller in frequency; when the contact obliquely strikes the touch substrate, namely the contact is obliquely contacted with the touch substrate, the pressure borne by the touch substrate is reduced, the rebound influence of the force on the touch substrate is weakened, and in the process of oblique contact, the vibration amplitude of the touch substrate is smaller, the vibration frequency is higher, so that the elastic wave signal is also smaller in amplitude and higher in frequency. In the embodiment, the characteristics that the elastic wave signals generated in the first contact mode and the second contact mode have different signal characteristics are utilized, the signal characteristics of the elastic wave signals generated by contact are compared with the signal characteristics of the corresponding elastic wave signals in the first contact mode and the second contact mode, and the contact mode can be judged according to the comparison result.
In another exemplary embodiment, determining the contact pattern of the contact with the touch substrate includes: determining a contact mode of the contact and the touch substrate according to the elastic wave signal and contact parameters of the contact and the touch substrate, wherein the contact mode comprises the following steps: judging a contact mode of the contact and the touch substrate according to the elastic wave signal; when the contact parameter belongs to a preset contact range value of a contact of a first specification or a contact range value of a contact of a second specification, but the contact parameter is out of a contact range value corresponding to a contact material determined according to the elastic wave signal, if the contact mode is determined to be the first contact mode according to the elastic wave signal, the contact mode of the contact and the touch substrate is determined to be the first contact mode, and the contact range value of the contact of the second specification is larger than the contact range value of the contact of the first specification. In this embodiment, the first specification contact and the second specification contact may be divided according to the thickness of the contact, and the contact range value corresponding to the thick contact is larger than the contact range value corresponding to the thin contact. In this embodiment, when the contact parameter is outside the contact range value corresponding to the contact material determined according to the elastic wave signal, it indicates that the contact specification determined according to the contact parameter and the contact specification determined according to the contact material are inconsistent, and if the contact mode is determined to be the first contact mode according to the elastic wave signal at this time, the contact specification determined by the contact material is taken as the finally output contact specification, and at this time, the contact mode between the contact and the touch substrate is determined to be the first contact mode.
In an exemplary embodiment, determining a contact pattern of the contact with the touch substrate according to the elastic wave signal and the contact parameter further includes: and when the contact parameter belongs to a preset contact range value of a contact of a first specification or a preset contact range value of a contact of a second specification and the contact parameter is within a contact range value corresponding to the contact material determined according to the elastic wave signal, determining that the contact mode of the contact and the touch substrate is a second contact mode. In this embodiment, when the contact parameter is within the contact range value corresponding to the contact material determined according to the elastic wave signal, it is described that the contact specification determined according to the contact parameter is consistent with the contact specification determined according to the contact material, the contact specification may be determined according to the contact material or the contact specification may be determined according to the contact parameter, and at this time, the contact mode between the contact and the touch substrate is determined as the second contact mode.
In an exemplary embodiment, determining a contact pattern of the contact with the touch substrate according to the elastic wave signal and the contact parameter further includes:
when the contact parameter is between a preset contact range value of a contact of a first specification and a contact range value of a contact of a second specification or exceeds the contact range value of the contact of the second specification, judging whether the distance between the contact parameter and the contact range value corresponding to the contact material determined according to the elastic wave signal is smaller than a preset value, and if so, determining that the contact mode of the contact and the touch substrate is a first contact mode; if not, the contact mode of the contact and the touch substrate is determined to be the first contact mode or the second contact mode by default. In this embodiment, when the contact specification cannot be determined according to the contact parameter, if the contact parameter is close to the contact range value corresponding to the contact material determined according to the elastic wave signal, the contact specification determined by the contact material is used as the finally output contact specification, and at this time, the contact mode between the contact and the touch substrate is determined as the first contact mode. The preset value is equivalent to tolerance for misjudgment, and the larger the preset value is, the higher the tolerance is, and the higher the possibility of error is. The preset value may be determined empirically or experimentally.
In an exemplary embodiment, determining a contact pattern of the contact with the touch substrate according to the elastic wave signal and the contact parameter further includes: and when the contact parameter is smaller than a preset contact range value of the first specification contact, judging that the contact is invalid. In this embodiment, when the contact parameter is smaller than the preset contact range value of the first specification contact, it indicates that the contact area between the contact and the touch substrate is too small, and at this time, the contact is determined to be an invalid contact.
Embodiments of the present invention also provide a computer-readable storage medium storing one or more programs, which are executable by one or more processors to implement the method for identifying specifications of a touch object contact according to the foregoing embodiments.
The embodiment of the present invention further provides an apparatus for identifying the specification of a touch object contact, as shown in fig. 5, the apparatus includes a memory 501 and a processor 502, the memory 501 stores a program, and when the program is read and executed by the processor 502, the method for identifying the specification of the touch object contact according to the foregoing embodiment is implemented.
It will be understood by those of ordinary skill in the art that all or some of the steps of the methods, systems, functional modules/units in the devices disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. In a hardware implementation, the division between functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component may have multiple functions, or one function or step may be performed by several physical components in cooperation. Some or all of the components may be implemented as software executed by a processor, such as a digital signal processor or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as is well known to those of ordinary skill in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, Digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can accessed by a computer. In addition, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media as known to those skilled in the art.
Claims (10)
1. A method for identifying a specification of a touch object contact, comprising:
acquiring an elastic wave signal generated when the contact is contacted with the touch substrate, and determining the material of the contact according to the elastic wave signal;
judging a contact mode of the contact and the touch substrate;
and when the contact mode of the contact and the touch substrate is judged to be the first contact mode, determining the specification of the contact according to the material of the contact.
2. The method of claim 1, further comprising:
acquiring contact parameters of the contact head and the touch substrate;
and when the contact mode of the contact and the touch substrate is judged to be the second contact mode, determining the specification of the contact according to the contact parameters or the contact material.
3. The method of claim 2,
judging the contact mode of the contact head and the touch substrate comprises the following steps:
determining a contact mode of the contact with the touch substrate according to the elastic wave signal: and comparing the signal characteristics of the elastic wave signals with the signal characteristics in a signal characteristic library, and determining the contact mode of the contact and the touch substrate according to the comparison result, wherein the signal characteristics of the elastic wave signals corresponding to the contacts with different specifications and the touch substrate in a first contact mode and a second contact mode are stored in the signal characteristic library.
4. The method of claim 2,
judging the contact mode of the contact head and the touch substrate comprises the following steps:
and determining a contact mode of the contact and the touch substrate according to the elastic wave signal and the contact parameter.
5. The method of claim 4,
determining a contact mode of the contact with the touch substrate according to the elastic wave signal and the contact parameter, including:
judging a contact mode of the contact and the touch substrate according to the elastic wave signal;
when the contact parameter belongs to a preset contact range value of a contact of a first specification or a contact range value of a contact of a second specification, but the contact parameter is out of a contact range value corresponding to a contact material determined according to the elastic wave signal, if the contact mode is determined to be the first contact mode according to the elastic wave signal, the contact mode of the contact and the touch substrate is determined to be the first contact mode, and the contact range value of the contact of the second specification is larger than the contact range value of the contact of the first specification.
6. The method of claim 5,
determining a contact mode of the contact with the touch substrate according to the elastic wave signal and the contact parameter, and further comprising:
and when the contact parameter belongs to a preset contact range value of a contact of a first specification or a preset contact range value of a contact of a second specification and the contact parameter is within a contact range value corresponding to the contact material determined according to the elastic wave signal, determining that the contact mode of the contact and the touch substrate is a second contact mode.
7. The method of claim 5,
determining a contact mode of the contact with the touch substrate according to the elastic wave signal and the contact parameter, and further comprising:
when the contact parameter is between a preset contact range value of a contact of a first specification and a contact range value of a contact of a second specification or exceeds the contact range value of the contact of the second specification, judging whether the distance between the contact parameter and the contact range value corresponding to the contact material determined according to the elastic wave signal is smaller than a preset value, and if so, determining that the contact mode of the contact and the touch substrate is a first contact mode; if not, the contact mode of the contact and the touch substrate is determined to be the first contact mode or the second contact mode by default.
8. The method of claim 5,
determining a contact mode of the contact with the touch substrate according to the elastic wave signal and the contact parameter, and further comprising:
and when the contact parameter is smaller than a preset contact range value of the first specification contact, judging that the contact is invalid.
9. A computer readable storage medium storing one or more programs, the one or more programs being executable by one or more processors to implement the method of any of claims 1 to 8.
10. An identification device for a touch object stylus specification, comprising a memory and a processor, the memory storing a program which, when read and executed by the processor, implements the method of any one of claims 1 to 8.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113655902A (en) * | 2021-07-26 | 2021-11-16 | 北京钛方科技有限责任公司 | Touch signal determination method and device and storage medium |
| CN113805725A (en) * | 2021-08-03 | 2021-12-17 | 广州创知科技有限公司 | Display control method and device for interactive panel |
| CN114115558A (en) * | 2021-11-04 | 2022-03-01 | 北京钛方科技有限责任公司 | Touch pen identification method, device and system, storage medium and touch pen |
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| CN113655902A (en) * | 2021-07-26 | 2021-11-16 | 北京钛方科技有限责任公司 | Touch signal determination method and device and storage medium |
| CN113655902B (en) * | 2021-07-26 | 2024-04-26 | 北京钛方科技有限责任公司 | Touch signal determining method and device and storage medium |
| CN113805725A (en) * | 2021-08-03 | 2021-12-17 | 广州创知科技有限公司 | Display control method and device for interactive panel |
| CN113805725B (en) * | 2021-08-03 | 2024-04-23 | 广州创知科技有限公司 | Display control method and device for interactive panel |
| CN114115558A (en) * | 2021-11-04 | 2022-03-01 | 北京钛方科技有限责任公司 | Touch pen identification method, device and system, storage medium and touch pen |
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