A false touch judgment method and device, a storage medium and a touch earphone

Abstract

A false touch judgment method and device, a storage medium and a touch earphone are provided, and the method comprises the following steps: receiving a touch sensing signal detected by a sensor; judging whether a touch position is located in a first effective touch area according to the sensing signal; after judging that the touch position is located in the first effective touch area, determining whether the touch position is located in a second effective touch area according to an accumulated amount of the touch sensing signal detected by the sensor within a preset first time length to perform false touch judgment; and the second effective touch area is located in the range of the first effective touch area. The application is beneficial to improving the accuracy of false touch judgment.

Description

TECHNICAL FIELD

[0001] The present application relates to touch technology, in particular to a false touch judgment method and device, a storage medium and a touch earphone. BACKGROUND

[0002] Piezoelectric, piezoresistive, acceleration and other touch sensors are used in touch devices, not only simplifying the hardware structure of the touch device, but also improving the user experience. In order to more correctly judge the user's use intention, it is necessary to judge the false touch according to the sensing signal detected by the touch sensor.

[0003] Currently, the main method for false touch judgment is to define an effective touch area. When the touch position is determined to be located in the effective touch area according to the sensing signal, it is considered as non-false touch. When the touch position is determined to be located in the invalid touch area according to the sensing signal, it is considered as false touch. SUMMARY

[0004] The present application provides a false touch judgment method, device and storage medium, which is beneficial to improve the accuracy of false touch judgment.

[0005] The false touch judgment method provided by the present application comprises:

[0006] receiving a touch sensing signal detected by a sensor;

[0007] judging whether the touch position is located in a first effective touch area according to the sensing signal;

[0008] After judging that the touch position is located in the first effective touch area, determining whether the touch position is located in a second effective touch area according to the cumulative amount of touch sensing signals detected by the sensor within a preset first time period to perform false touch judgment; the second effective touch area is located within the range of the first effective touch area.

[0009] Optionally, the determination of whether the touch position is located in the second effective touch area according to the cumulative amount of touch sensing signals detected by the sensor within the preset first time period to perform false touch judgment comprises:

[0010] judging whether the cumulative amount of sensing signals detected by each sensor within the preset first time period is negative, and if so, determining that the touch position is not located in the second effective touch area and the touch is a false touch.

[0011] Optionally, the determination of whether the touch position is located in the second effective touch area according to the cumulative amount of touch sensing signals detected by the sensor within the preset first time period to perform false touch judgment comprises:

[0012] If not, it is determined whether a maximum value of the accumulated amount of the sensing signal detected by each sensor arranged in the first effective touch area is greater than M times of a maximum value of the accumulated amount of the sensing signal detected by each sensor arranged in the invalid touch area within the preset first time length, and if yes, it is determined that the touch position is located in the second effective touch area and the touch is an effective touch; if not, it is determined that the touch position is not located in the second effective touch area and the touch is a false touch.

[0013] The M is a preset value.

[0014] Optionally, the method further comprises:

[0015] After receiving the touch sensing signal detected by the sensor, it is determined whether the touch sensing signal detected by the sensor arranged in the first effective touch area is greater than a preset trigger threshold, and if yes, the touch position is determined according to the sensing signal whether it is located in the first effective touch area.

[0016] When it is determined that the touch is a false touch through the false touch determination, the false touch prevention mechanism is started, the preset trigger threshold is increased, and the touch sensing signal detected by the sensor is continuously received.

[0017] Optionally, the determination of whether the touch position is located in the first effective touch area according to the sensing signal comprises:

[0018] The touch position is calculated according to the sensing signal at each time point within a preset second time length to obtain a plurality of touch positions.

[0019] It is determined whether the average value of the plurality of touch positions is located in the first effective touch area, and if yes, it is determined that the touch position is located in the first effective touch area.

[0020] The second time length includes the first time length.

[0021] Optionally, the way of increasing the preset trigger threshold comprises:

[0022] The accumulated amount average value of the sensing signal detected by all sensors within the preset first time length is calculated, and the increase amount of the preset trigger threshold is greater than or equal to the accumulated amount average value.

[0023] Optionally, the method further comprises:

[0024] After starting the anti-mistouch mechanism, continue to receive the touch sensing signals detected by the sensors, and determine whether the touch sensing signals are in a non-touch and stable state, and if so, restore the preset trigger threshold to the initial state and exit the anti-mistouch mechanism.

[0025] Optionally, the manner of determining whether the touch sensing signals are in a non-touch and stable state comprises:

[0026] The maximum amplitude and the standard deviation are calculated according to the touch sensing signals detected by all the sensors, and if the maximum amplitude and the standard deviation corresponding to each sensor are less than a preset stable threshold, it is determined that the touch sensing signals are in a non-touch and stable state.

[0027] The application further provides a computer readable storage medium storing one or more programs, which can be executed by one or more processors to implement the method as any one of the preceding.

[0028] The application further provides a mistouch determination device comprising a memory and a processor, wherein the memory stores a program which, when read and executed by the processor, implements the method as any one of the preceding.

[0029] The application further provides a touch control earphone comprising the mistouch determination device as the preceding.

[0030] The application does not directly determine whether the touch position is a mistouch or a non-mistouch after determining that the touch position is in the first effective touch control area according to the sensing signals, but continues to calculate the cumulative amount of the touch sensing signals detected by the sensors within a preset first time period, and determines whether the touch position is in the second effective touch control area according to the cumulative amount to determine the mistouch; by increasing the mistouch determination condition, the accuracy of mistouch determination is improved.

[0031] Other features and advantages of the application will be described in the following description, and some will become apparent from the description, or will be learned through practice of the application. Other advantages of the application will be achieved and obtained through the solutions described in the specification and the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0032] The accompanying drawings are used to provide an understanding of the technical solutions of the application, and constitute a part of the specification, and are used to explain the technical solutions of the application together with the embodiments of the application, and do not constitute a limitation on the technical solutions of the application.

[0033] Figure 1 A mistouch determination method flowchart is provided for the embodiments of the application.

[0034] Figure 2A distribution diagram of sensors in a Bluetooth touch earphone provided by an embodiment of the present application;

[0035] Figure 3 Another distribution diagram of sensors in a Bluetooth touch earphone provided by an embodiment of the present application;

[0036] Figure 4 Another flowchart of a false touch judgment method provided by an embodiment of the present application;

[0037] Figure 5 Another flowchart of a false touch judgment method provided by an embodiment of the present application;

[0038] Figure 6 Another flowchart of a false touch judgment method provided by an embodiment of the present application;

[0039] Figure 7 A structure diagram of a false touch judgment device provided by an embodiment of the present application. DETAILED DESCRIPTION

[0040] The present application describes a plurality of embodiments, but the description is exemplary rather than limiting, and it is obvious to those of ordinary skill in the art that there can be more embodiments and implementation schemes within the scope of the embodiments described in the present application. 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. Unless specifically limited, any feature or element of any embodiment can be used with any other feature or element of any other embodiment, or can replace any other feature or element in any other embodiment.

[0041] 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 the present application can also be combined with any conventional features or elements to form a unique inventive scheme defined by the claims. Any feature or element of any embodiment can also be combined with features or elements from other inventive schemes to form another unique inventive scheme defined by the claims. Therefore, it should be understood that any feature shown and / or discussed in the present application can be implemented alone or in any appropriate combination. Therefore, the embodiments are not limited by other than according to the limitations made according to the appended claims and their equivalent replacements. In addition, various modifications and changes can be made within the scope of protection of the appended claims.

[0042] Furthermore, in describing representative embodiments, the specification can have presented the method and / or process as a particular sequence of steps. However, to the extent that the method or process depends on the particular order of steps, this description should not be construe to imply that the steps are necessarily order dependent. Other steps could be performed in other orders or omitted altogether, consistent with the described embodiments. Thus, the particular order of the steps presented is not a limitation of the described embodiments. Furthermore, any claims directed to the method and / or process should not be limited to the performance of the steps in the order written, and one skilled in the art can readily appreciate many variations of the methods and / or processes, consistent with the spirit and scope of the present application as set forth in the claims.

[0043] The present inventors have found that in actual use of a touch device, a hand can be in contact with the touch device without the user's intention, such as when the touch device is placed in a pocket and the hand is in contact with the touch device when taking something out of the pocket, and when the effective touch area is not appropriate, such as when the effective touch area is too large, the hand is more likely to be in contact with the effective touch area of the touch device, but the user does not want the touch device to react to the contact action.

[0044] Based on the above finding, the present inventors propose a new false touch judgment method, as shown in Figure 1 The method comprises:

[0045] Step S101 receives a touch sensing signal detected by a sensor;

[0046] Step S102 judges whether the touch position is located in a first effective touch area according to the sensing signal;

[0047] Step S103, after judging that the touch position is located in the first effective touch area, continues to determine whether the touch position is located in a second effective touch area according to the cumulative amount of the touch sensing signal detected by the sensor within a preset first time length to perform false touch judgment;

[0048] The second effective touch area is located in the range of the first effective touch area.

[0049] As shown in Figure 2 Take a Bluetooth earphone as an example, the ear handle has two areas defined by black squares on the front, wherein the larger area is the first effective touch area and the smaller area is the second effective touch area.

[0050] The embodiment of the present application does not directly obtain the conclusion of false touch or non false touch after judging that the touch position is located in the first effective touch area according to the sensing signal, but continues to calculate the accumulated amount of the touch sensing signal detected by the sensor within the preset first time length, and determines whether the touch position is located in the second effective touch area according to the accumulated amount to perform false touch judgment. By increasing the false touch judgment condition, the accuracy of false touch judgment is improved.

[0051] In an example embodiment, the calculation method of the accumulated amount of the touch sensing signal detected by the i th sensor within the first time length can be:

[0052]

[0053] Wherein, x i (n) represents the sensing signal value obtained by sampling the i th sensor at the n th sampling time within the preset first time length, and N is the total sampling number within the preset first time length; E i represents the accumulated amount of the touch sensing signal of the i th sensor within the first time length.

[0054] In an example embodiment, judging whether the touch position is located in the first effective touch area according to the sensing signal comprises:

[0055] The touch position is calculated according to the sensing signal at each time point within the preset second time length to obtain a plurality of touch positions; it is judged whether the average value of the plurality of touch positions is located in the first effective touch area; for example, the sampling frequency is 200 Hz, that is, the touch sensing signal detected by the sensor is sampled once every 5 ms, when the second time length is 15 ms, the touch sensing signal will be sampled 3 times within the second time length, and the touch position is calculated according to the sensing signal obtained by each sampling; the average value of the touch positions obtained by 3 times of sampling is taken as the touch gravity center position, and it is judged whether the touch gravity center position is located in the first effective touch area; if the average value of the plurality of touch positions is located in the first effective touch area, it is determined that the touch position is located in the first effective touch area;

[0056] The second time length includes the first time length; the first time length is used for the calculation of the accumulated amount of the touch sensing signal detected by the sensor, and the length of the first time length can be set to be short to ensure the response speed; the second time length is used for the calculation of the touch position, and since the touch position and the touch time length have randomness when the user performs the touch operation, in order to exclude the user false touch and make the calculated touch position more accurate, the length of the second time length can be set to be long.

[0057] In an example embodiment, the determination of whether the touch position is located in the second effective touch area according to the accumulated amount of the touch sensing signal detected by the sensor within the preset first time length to perform false touch judgment comprises:

[0058] determining whether the accumulated amount of the sensing signal detected by each sensor in the preset first time length is negative, and if so, determining that the touch position is not located in the second valid touch area and the touch is a false touch. Figure 2 For example, the Bluetooth headset is provided with four sensors in total. If it is determined that the accumulated amounts E1, E2, E3 and E4 of the sensing signals detected by the four sensors in the preset first time length are all negative, it is determined that the touch is a false touch.

[0059] In an exemplary embodiment, the determination of whether the touch position is located in the second valid touch area according to the accumulated amount of the touch sensing signal detected by the sensor in the preset first time length for false touch determination comprises:

[0060] determining whether the accumulated amount of the sensing signal detected by each sensor in the preset first time length is negative, and if not, determining whether the maximum value of the accumulated amount of the sensing signal detected by each sensor arranged in the first valid touch area in the preset first time length is greater than M times of the maximum value of the accumulated amount of the sensing signal detected by each sensor arranged in the invalid touch area, and if so, determining that the touch position is located in the second valid touch area and the touch is a valid touch, and if not, determining that the touch position is not located in the second valid touch area and the touch is a false touch; the M is a preset value, and the M is related to the sensitivity of the sensor, and the M is generally a number greater than or equal to 1.

[0061] For example, the Bluetooth headset is provided with four sensors in total. If it is determined that the accumulated amounts E1, E2, E3 and E4 of the sensing signals detected by the four sensors in the preset first time length are all negative, it is determined that the touch is a false touch. Figure 2 For example, the Bluetooth headset is provided with four sensors in total. If it is determined that the accumulated amounts E1, E2, E3 and E4 of the sensing signals detected by the four sensors in the preset first time length are all negative, it is determined that the touch is a false touch.

[0062] The false touch determination method is also verified by the inventors of the present application through test:

[0063] When the touch action occurs in the middle range of the front of the ear handle (i.e. the second valid touch area), the accumulated amount of the sensing signal detected by all sensors in the preset first time length is positive, and satisfies max(E1, E2, E3)>E4*M. Figure 2

[0064] When the touch action occurs in the middle range of the front of the ear handle (i.e. the second valid touch area), the accumulated amount of the sensing signal detected by all sensors in the preset first time length is positive, and satisfies max(E1, E2, E3)>E4*M. Figure 2 ​When the earpiece is positioned at both ends on the front of the ear stem, the cumulative amount of the sensing signals detected by all sensors within a preset first time period is positive, but max(E1,E2,E3)≤E4*M and max(E1,E2,E3)≥E4*K, where K is a preset value. K is related to the sensitivity of the sensor and is generally a number less than or equal to 1.

[0065] When the touch action occurs Figure 2 When the earpiece is placed on the back, the cumulative amount of the sensing signals detected by all sensors within a preset first time period is positive, but max(E1,E2,E3) is not. <E4*K;

[0066] When the touch action occurs Figure 2 When the earpiece is positioned on the side, the cumulative amount of the sensing signals detected by all sensors within a preset first time period is negative.

[0067] When the touch action occurs Figure 3 ( Figure 3 and Figure 2 The difference is that, Figure 2 The central sensor 4 is located on the back of the ear stem. Figure 3 When the sensor 4 is located on the earphone (on the side of the ear stem), the following conclusions can still be drawn: when the touch action occurs in the middle range of the front of the earphone stem (i.e., the second effective touch area), the cumulative amount of the sensing signals detected by all sensors within a preset first time period is positive and satisfies max(E1,E2,E3)>E4*M; when the touch action occurs at other positions on the earphone stem, the cumulative amount of the sensing signals detected by all sensors within a preset first time period cannot satisfy max(E1,E2,E3)>E4*M.

[0068] This application also provides a method for determining accidental touches, such as... Figure 4 As shown, the method includes:

[0069] Step S301: Receive the touch sensing signal detected by the sensor;

[0070] Step S302 determines whether the touch sensing signal detected by the sensor set in the first effective touch area is greater than the preset trigger threshold. If it is greater, proceed to step S303.

[0071] Step S303 determines whether the touch position is located in the first effective touch area based on the sensing signal;

[0072] Step S304: After determining that the touch position is located in the first preset effective touch area, determine whether the touch position is located in the second effective touch area based on the cumulative amount of touch sensing signals detected by the sensor within a preset first time period to make a mis-touch judgment.

[0073] Before the touch position is determined, the application further determines whether the touch sensing signal detected by the sensor located in the first effective touch area is greater than a preset trigger threshold, so as to further eliminate the false touch action and improve the accuracy of false touch determination.

[0074] In an exemplary embodiment, the method of determining whether the touch sensing signal detected by the sensor located in the first effective touch area is greater than a preset trigger threshold can include any one or more of the following:

[0075] determining whether the maximum value of the sensing signal strength from all the sensors located in the first effective touch area is greater than a first preset strength threshold;

[0076] determining whether the sum of the sensing signal strength from all the sensors located in the first effective touch area is greater than a second preset strength threshold;

[0077] determining whether each sensing signal strength from all the sensors located in the first effective touch area is greater than a third preset strength threshold.

[0078] In an exemplary embodiment, as shown in Figure 5 the method further includes:

[0079] When it is determined that the touch sensing signal detected by the sensor located in the first effective touch area is less than or equal to the preset trigger threshold, step S305 enters a low power consumption mode, and step S301 is executed in the low power consumption mode. In the low power consumption mode, the sampling frequency of the touch sensing signal detected by the sensor can be reduced.

[0080] In an exemplary embodiment, as shown in Figure 6 the method further includes:

[0081] When it is determined that the touch is a false touch by the false touch determination, step S306 starts a false touch prevention mode, increases the preset trigger threshold, and continues to execute step S301.

[0082] By increasing the preset trigger threshold, the false touch determination can further eliminate the false touch action and improve the accuracy of false touch determination.

[0083] In an exemplary embodiment, the way of increasing the preset trigger threshold includes:

[0084] The average value of the accumulated amount of the sensing signal detected by all the sensors in the preset first time period is calculated, and the increase amount of the preset trigger threshold is greater than or equal to the average value of the accumulated amount; for example, the ratio of the maximum value of the accumulated amount to the preset first time period is taken as the increase amount of the preset trigger threshold. Figure 1The increase of the trigger threshold can be max(E1, E2, E3, E4) / L, where L is the length of the preset first time period.

[0085] In an example embodiment, the method further comprises:

[0086] After continuously receiving the touch sensing signals detected by the sensors, it is determined whether the device is in a non-touch and stable state according to the touch sensing signals. If so, the preset trigger threshold is restored to the initial state, and the anti-mis-touch mechanism is exited.

[0087] If it is determined that there is a touch according to the continuously received touch sensing signals, the preset trigger threshold can be increased according to Figure 6 The method shown can be used to continuously increase the preset trigger threshold.

[0088] In an example embodiment, the way of determining whether the device is in a non-touch and stable state according to the touch sensing signals comprises:

[0089] The maximum amplitude and the standard deviation are calculated according to the touch sensing signals detected by all the sensors. If the maximum amplitude and the standard deviation corresponding to each sensor are less than a preset stable threshold, it is determined that the device is in a non-touch and stable state. The maximum amplitude and the standard deviation can be calculated directly using the touch sensing signals, or can be calculated according to the differential signals of the touch sensing signals in a certain time period.

[0090] The embodiment of the present application also provides a computer readable storage medium, which stores one or more programs, and the one or more programs can be executed by one or more processors to implement the method according to any one of the preceding embodiments.

[0091] The embodiment of the present application also provides a mis-touch determination device, which, as shown in the accompanying drawings, comprises a memory 701 and a processor 702, the memory 701 stores a program, and the program is read and executed by the processor 702 to implement the method according to any one of the preceding embodiments. Figure 7

[0092] The embodiment of the present application also provides a touch control earphone, which comprises the mis-touch determination device according to the preceding embodiments.

[0093] ​Those of ordinary skill in the art will realize and understand that all or some of the steps in the methods disclosed above and the functional modules / units in the systems and devices can be implemented as software, firmware, hardware, and appropriate combinations thereof. In hardware implementation, the division between the functional modules / units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component can have multiple functions, or one function or step can be performed by several physical components in cooperation. Some or all of the components can be implemented as software executed by a processor, such as a digital signal processor or a microprocessor, or as hardware, or as an integrated circuit, such as an application-specific integrated circuit. Such software can be distributed on computer-readable media, which can include computer storage media (or non-transitory media) and communication media (or transitory media). As is well known to those of ordinary skill in the art, the term computer storage media includes volatile and non-volatile, 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. 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 tapes, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can be accessed by a computer. Furthermore, it is common and well understood by those of ordinary skill in the art that 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 can include any information delivery media.

Claims

1. A method for false touch judgment, comprising: receiving touch sensing signals detected by sensors; judging whether a touch position is located in a first valid touch area according to the sensing signals; after judging that the touch position is located in the first valid touch area, determining whether the touch position is located in a second valid touch area according to accumulative amounts of touch sensing signals detected by the sensors within a preset first time period to perform false touch judgment; the second valid touch area is located in a range of the first valid touch area; wherein, a calculation method of the accumulative amount of touch sensing signals detected by an i th sensor within the preset first time period can be: wherein, represents the sensing signal value of the ith sensor at the nth sampling time within the preset first time length, and N is the total number of samplings within the preset first time length; represents the sensing signal value of the ith sensor at the nth sampling time within the preset first time length, and N is the total number of samplings within the preset first time length; represents the cumulative amount of the touch sensing signal of the ith sensor within the preset first time length. wherein, the determination of whether the touch position is located in the second valid touch area according to the accumulative amounts of touch sensing signals detected by the sensors within the preset first time period to perform false touch judgment comprises: judging whether the accumulative amounts of sensing signals detected by each sensor within the preset first time period are all negative values; if not, judging whether a maximum value of the accumulative amounts of sensing signals detected by each sensor arranged in the first valid touch area within the preset first time period is greater than M times of a maximum value of the accumulative amounts of sensing signals detected by each sensor arranged in an invalid touch area; if yes, it is determined that the touch position is located in the second valid touch area and the touch is a valid touch; if not, it is determined that the touch position is not located in the second valid touch area and the touch is a false touch; the M is a preset value. 2.The method of claim 1, wherein: the determination of whether the touch position is located in the second valid touch area according to the accumulative amounts of touch sensing signals detected by the sensors within the preset first time period to perform false touch judgment comprises: judging whether the accumulative amounts of sensing signals detected by each sensor within the preset first time period are all negative values; if yes, it is determined that the touch position is not located in the second valid touch area and the touch is a false touch.

3. The method according to claim 1 or 2, characterized in that, The method further comprises: after receiving the touch sensing signals detected by the sensors, judging whether the touch sensing signals detected by the sensors arranged in the first valid touch area are greater than a preset trigger threshold; if yes, judging whether the touch position is located in the first valid touch area according to the sensing signals again; after determining that the touch is a false touch by false touch judgment, starting a false touch prevention mechanism, increasing the preset trigger threshold, and continuing to receive the touch sensing signals detected by the sensors. 4.The method of claim 3, wherein: the judging of whether the touch position is located in the first valid touch area according to the sensing signals comprises: calculating the touch position according to the sensing signals at each time point within a preset second time period to obtain a plurality of touch positions; judging whether an average value of the plurality of touch positions is located in the first valid touch area; if yes, it is determined that the touch position is located in the first valid touch area; wherein, the second time period includes the first time period. 5.The method of claim 3, wherein: the way of increasing the preset trigger threshold comprises: The preset first time length is calculated, and the accumulated amount average value of the sensing signals detected by all sensors is calculated. The increase amount of the preset trigger threshold is greater than or equal to the accumulated amount average value.

6. The method of claim 3, wherein, The method further comprises: After starting the false touch prevention mechanism, the touch sensing signals detected by the sensors are continuously received, and it is determined whether the state is a no-touch and stable state according to the touch sensing signals. If yes, the preset trigger threshold is restored to the initial state, and the false touch prevention mechanism is exited.

7. The method of claim 6, wherein, The manner of determining whether the state is a no-touch and stable state according to the touch sensing signals comprises: The maximum amplitude and the standard deviation are calculated according to the touch sensing signals detected by all sensors. If the maximum amplitude and the standard deviation corresponding to each sensor are less than a preset stable threshold, it is determined that the state is a no-touch and stable state.

8. A computer readable storage medium, the 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 one of claims 1 to 7.

9. A false touch determination device, comprising a memory and a processor, the memory storing a program, the program being read and executed by the processor to implement the method of any one of claims 1 to 7.

10. A touch control earphone, characterized in that, The touch control earphone comprises the false touch determination device of claim 9.

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