WO2023273038A1 - 一种防误触方法、可穿戴设备及存储介质 - Google Patents
一种防误触方法、可穿戴设备及存储介质 Download PDFInfo
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- WO2023273038A1 WO2023273038A1 PCT/CN2021/125961 CN2021125961W WO2023273038A1 WO 2023273038 A1 WO2023273038 A1 WO 2023273038A1 CN 2021125961 W CN2021125961 W CN 2021125961W WO 2023273038 A1 WO2023273038 A1 WO 2023273038A1
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- 238000000034 method Methods 0.000 title claims abstract description 37
- 230000002265 prevention Effects 0.000 title claims abstract description 14
- 238000003860 storage Methods 0.000 title claims abstract description 11
- 238000009826 distribution Methods 0.000 claims abstract description 44
- 230000001960 triggered effect Effects 0.000 claims abstract description 15
- 238000001514 detection method Methods 0.000 claims description 7
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 10
- 238000013461 design Methods 0.000 description 7
- 238000012360 testing method Methods 0.000 description 6
- 238000004590 computer program Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000004044 response Effects 0.000 description 3
- 210000000707 wrist Anatomy 0.000 description 3
- 230000036760 body temperature Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000013480 data collection Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
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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
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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
Definitions
- the present application relates to the technical field of device control, and in particular to a false touch prevention method, a wearable device and a storage medium.
- wearable devices such as smart watches and smart bracelets have been widely used.
- Wearable devices are usually equipped with touch structures such as buttons, scroll wheels, knobs, and rotating crowns. Users can realize human-computer interaction with wearable devices by pressing or rotating the touch structures.
- the purpose of this application is to provide a false touch prevention method, a wearable device and a storage medium, which can improve the accuracy of false touch recognition.
- the present application provides a false touch prevention method, which is applied to a wearable device, the wearable device includes a touch structure and a capacitive touch sensor, and the capacitive touch sensor is used to collect at least two touches The capacitance value of the channel, the distance between at least two touch channels and the touch structure is not equal, and the anti-mistouch method includes:
- the preset capacitance value distribution state is the capacitance value of all the touch channels when the touch structure is triggered under the non-false touch condition distribution status
- the method before obtaining the capacitance value of each of the touch channels collected by the capacitive touch sensor, the method further includes:
- the wearable device If the wearable device is in the wearing state, enter into the step of acquiring the capacitance value of each of the touch channels collected by the capacitive touch sensor.
- obtaining the capacitance value of each touch channel collected by the capacitive touch sensor includes:
- Fitting is performed according to the channel value interval and channel value of each touch channel to obtain the capacitance value corresponding to each touch channel; wherein, the channel value interval of the touch channel includes a maximum channel value and a minimum channel value.
- the preset capacitance value distribution state is set according to the reference capacitance values of all the touch channels.
- the application also provides a wearable device, including: a touch structure, a capacitive touch sensor and a main control chip;
- the capacitive touch sensor is used to collect the capacitance values of at least two touch channels, and the distances between the at least two touch channels and the touch structure are not equal, and the main control chip is used when a trigger is detected.
- the capacitance value of each touch channel collected by the capacitive touch sensor is obtained; it is also used to judge whether the capacitance values of all the touch channels conform to the preset capacitance value distribution state; wherein , the preset capacitance value distribution state is the distribution state of the capacitance values of all the touch channels when the touch structure is triggered under the non-false touch condition; if not, it is determined that the touch structure is accidentally touched, and no Respond to the event triggering the touch structure.
- the touch control structure includes a scroll wheel disposed on the side wall of the wearable device, and at least two of the touch channels are respectively disposed on the side wall of the housing.
- the touch control structure includes a roller and a button arranged on the side wall of the wearable device, at least three of the touch channels are respectively arranged on the side wall of the casing, and the roller and the button At least one touch channel is arranged between them.
- the touch channel is provided on the key.
- all touch channels are set on the same FPC board, and the FPC board is set on the side wall of the wearable device's casing.
- the present application also provides a storage medium, on which a computer program is stored, and when the computer program is executed, the steps performed in the above-mentioned false touch prevention method are realized.
- the present application provides a false touch prevention method, which is applied to a wearable device, the wearable device includes a touch structure and a capacitive touch sensor, and the capacitive touch sensor is used to collect capacitance values of at least two touch channels, The distances between at least two touch channels and the touch structure are unequal, and the false touch prevention method includes: when an event triggering the touch structure is detected, acquiring each data collected by the capacitive touch sensor A capacitance value of the touch channel; judging whether the capacitance values of all the touch channels conform to the preset capacitance value distribution state; wherein, the preset capacitance value distribution state is that the touch structure is triggered under the condition of no false touch If not, it is determined that the touch structure has been accidentally touched, and the event that triggers the touch structure is not responded.
- the wearable device in this application includes a touch structure and a capacitive touch sensor.
- the capacitive touch sensor can collect capacitance values of at least two touch channels. The distances between the at least two touch channels and the touch structure are not equal. When the user is close to the touch channel, it will affect the charge of the touch channel. Therefore, when the touch structure is triggered by the user without false touches, the user's influence on the capacitance values of the two touch channels is different, and it can be based on all touches. The distribution state of the capacitance value of the channel realizes false touch recognition.
- the capacitive touch sensor collects the capacitance value of each touch channel, and judges whether the capacitance values of all the touch channels conform to the preset capacitance value distribution state, if not If it matches, it means that the touch structure is detected to be accidentally touched, and no response is made to the event triggering the touch structure.
- the anti-false touch solution of the present application can detect false touch phenomena in various scenarios, and improves the accuracy of identifying false touches.
- the present application also provides a wearable device and a storage medium at the same time, which have the above-mentioned beneficial effects, and will not be repeated here.
- FIG. 1 is a flow chart of a method for preventing false touches provided in the embodiment of the present application
- FIG. 2 is a schematic structural diagram of a wearable device provided by an embodiment of the present application.
- Fig. 3 is a schematic diagram of the position of the first touch channel provided by the embodiment of the present application.
- FIG. 4 is a schematic diagram of an FPC layout of a touch channel provided by an embodiment of the present application.
- FIG. 5 is a schematic diagram of a user-triggered touch structure provided by an embodiment of the present application.
- FIG. 6 is a schematic diagram of the position of the second touch channel provided by the embodiment of the present application.
- FIG. 1 is a flowchart of a false touch prevention method provided by an embodiment of the present application.
- this embodiment can be applied to wearable devices such as smart watches, wristbands, AR glasses or VR helmets, and the above-mentioned wearable devices can include a touch structure, a capacitive touch sensor Touch IC and a main control chip, and the capacitive touch sensor uses In order to collect the capacitance values of at least two touch channels and return the collected capacitance values to the main control chip, the distances between the at least two touch channels of the capacitive touch sensor for collecting capacitance values and the touch structure are not equal.
- the touch structure and the touch channel can be arranged on the same shell side wall of the wearable device, so as to improve the success rate of false touch prevention.
- the capacitive touch sensor can be set in the main control chip.
- the touch structure in this embodiment may include one or a combination of buttons, scroll wheels, knobs, and rotating crowns.
- the touch structure may include a scroll wheel, or two buttons, or a button and a scroll wheel.
- the above-mentioned touch structure can be triggered by pressing or rotating.
- the touch structure is connected to the main control chip, and the main control chip can detect the event that the user triggers the touch structure.
- a data collection instruction can be sent to the capacitive touch sensor, so as to obtain each of the touch points collected by the capacitive touch sensor. channel capacitance.
- the key can be a common depressible key, or a depressible and rotatable key
- the scroll wheel can be a common rotatable scroll wheel, or a rotatable and pressable scroll wheel.
- S102 Determine whether the capacitance values of all touch channels conform to the preset capacitance value distribution state; if yes, enter S103; if not, enter S104;
- the preset capacitance value distribution state is the distribution state of the capacitance values of all the touch channels when the touch structure is triggered under the condition of no false touch .
- the main control chip can respond to the events that trigger the touch structure according to the preset processing logic, such as screen wake-up, Volume adjustment, answering calls, etc.
- S104 Determine that the touch structure is accidentally touched, and do not respond to an event triggering the touch structure.
- the wearable device in this embodiment includes a touch structure and a capacitive touch sensor.
- the capacitive touch sensor can collect the capacitance values of at least two touch channels, and the distance between the at least two touch channels and the touch structure is not the same. Equal, when the user is close to the touch channel, the charge amount of the touch channel will be affected. Therefore, when the touch structure is triggered by the user without false touch, the user's influence on the capacitance values of the two touch channels is different, and then it can be based on The distribution state of the capacitance values of all touch channels realizes false touch recognition.
- the capacitive touch sensor collects the capacitance value of each touch channel, and judges whether the capacitance values of all the touch channels conform to the preset capacitance value distribution state, if not If it matches, it means that the touch structure is detected to be accidentally touched, and no response is made to the event triggering the touch structure.
- the anti-false touch solution of this embodiment can detect false touch phenomena in various scenarios, and improves the accuracy of identifying false touches.
- step S101 the wearable device detects that the user is wearing it normally, it can execute the above-mentioned anti-false touch solution of S101-S104, thereby avoiding the disorder of the anti-false touch detection logic when the user is not wearing the device.
- the wearing detection can be realized through the optical or capacitive sensing of the bottom shell of the wearable device, and can also be realized through the health module sign monitoring.
- the wearing state data collected by the sensor can be used for wearing detection; wherein, the wearing state data includes data collected by any one or any several sensors of a sign sensor, a distance sensor, and a motion sensor.
- the aforementioned sign sensor may be a sensor for detecting the wearer's heart rate, may also be a sensor for detecting the wearer's body temperature, or may be a sensor for simultaneously detecting heart rate and body temperature.
- the channel values when the user's finger is not in contact with the touch channel can be collected, and the maximum channel value Tmax and minimum channel value Tmin of each touch channel can be obtained, and the maximum channel value Tmax and minimum channel value Tmin of each touch channel can be obtained.
- the channel range can be obtained.
- obtaining the capacitance value of each touch channel collected by the capacitive touch sensor includes: using the channel value of each touch channel collected by the capacitive touch sensor; The channel value interval of the channel is fitted with the channel value to obtain the capacitance value corresponding to each of the touch channels; wherein, the channel value interval of the touch channel includes a maximum channel value Tmax and a minimum channel value Tmin.
- the actual fitting capacitance value S of the current sampled channel value Ts of the touch channel after fitting each channel is:
- the preset capacitance value distribution state is set according to the reference capacitance values of all the touch channels.
- the preset capacitance value distribution state may be determined according to the capacitance value range corresponding to the reference capacitance value ⁇ 10%. The distribution state of the preset capacitance value under the non-false touch condition can be quickly determined through the above method.
- FIG. 2 is a schematic structural diagram of a wearable device provided by an embodiment of the present application.
- the device may include: a touch control structure, a capacitive touch sensor, and a main control chip.
- the capacitive touch sensor is used to collect capacitance values of at least two touch channels (i.e. touch channels), the distances between at least two touch channels and the touch structure are not equal, and the main control chip uses When an event triggering the touch structure is detected, the capacitance value of each of the touch channels collected by the capacitive touch sensor is obtained; it is also used to determine whether the capacitance values of all the touch channels conform to the preset capacitance Value distribution state; wherein, the preset capacitance value distribution state is the distribution state of the capacitance values of all the touch channels when the touch structure is triggered under the non-false touch condition; if not, then determine the touch structure Touched by mistake, does not respond to the event that triggers the touch structure.
- the wearable device in this embodiment includes a touch structure and a capacitive touch sensor.
- the capacitive touch sensor can collect the capacitance values of at least two touch channels, and the distance between the at least two touch channels and the touch structure is not the same. Equal, when the user is close to the touch channel, the charge amount of the touch channel will be affected. Therefore, when the touch structure is triggered by the user without false touch, the user's influence on the capacitance values of the two touch channels is different, and then it can be based on The distribution state of the capacitance values of all touch channels realizes false touch recognition.
- the capacitive touch sensor collects the capacitance value of each touch channel, and judges whether the capacitance values of all the touch channels conform to the preset capacitance value distribution state, if not If it matches, it means that the touch structure is detected to be accidentally touched, and no response is made to the event triggering the touch structure.
- the anti-false touch solution of this embodiment can detect false touch phenomena in various scenarios, and improves the accuracy of identifying false touches.
- the above-mentioned touch control structure may include a roller disposed on the side wall of the housing of the wearable device, and at least two of the touch channels are respectively disposed on the side wall of the housing. Furthermore, the number and setting positions of the touch channels affect the accuracy of false touch prevention.
- Fig. 3 is a schematic diagram of the position of the first touch channel provided by the embodiment of the present application. This embodiment adopts a four-segment touch channel design. Both the channel 302 and the touch channel 303 are closer to the scroll wheel 300 than the touch channel 301 and the touch channel 304 , and the touch channel 302 and the touch channel 303 are called the near side capacitance of the scroll wheel.
- the touch channel 301 and the touch channel 304 are respectively provided on both sides of the scroll wheel 300 , which are referred to as the capacitance at the far side of the scroll wheel.
- the touch channel can be as close as possible to the screen to reduce the influence of the wrist skin on the capacitance value.
- the touch channel 302 and the touch channel 303 should be as close as possible to the scroll wheel, and the touch channel 301 and the touch channel 304 should be as far away from the scroll wheel as possible to achieve better scroll wheel proximity. Distinguish between side capacitance and scroll wheel far side capacitance.
- the rotation direction of the roller 300 can be in many ways, and the rotation axis of the roller can be parallel to the plane where the side wall of the housing where the roller is placed or parallel to the tangent plane of the side wall of the housing.
- the rotation axis of the roller can be parallel to the side wall of the housing on which the roller is disposed, specifically, it can be parallel to the long side of the side wall of the housing, or parallel to the short side of the side wall of the housing.
- the rotation axis of the scroll wheel is parallel to the tangent plane of the side wall of the housing where the scroll wheel is disposed.
- the touch channel 301 , the touch channel 302 , the touch channel 303 and the touch channel 304 are distributed along the circumferential direction of the side wall of the housing. Wherein, when the rotation axis of the roller 300 is parallel to the long side of the housing side wall, the touch channel 301 , the touch channel 302 , the touch channel 303 and the touch channel 304 are distributed along the rotation axis of the roller.
- Figure 4 is a schematic diagram of the FPC layout of a touch channel provided by the embodiment of the present application, all the touch channels are arranged on the same FPC board, and the FPC board is arranged on the side wall of the housing of the wearable device , the FPC board can be connected to the capacitive touch sensor on the hard board and the main control unit in the form of a connector. After the capacitive touch sensor receives and processes multi-channel data, it transmits the data to the main control chip.
- FIG. 5 the schematic diagram of the touch structure triggered by the user under the condition of no false touch is shown in Figure 5.
- ⁇ in Figure 5 is the angle between the user's finger and the side wall of the watch case, and ⁇ can be set according to the user's normal usage habits .
- the values S1, S2, S3, and S4 actually collected by each touch channel (that is, the distribution state of the preset capacitance value).
- users can be guided to test with normal operating habits through App and other methods. Since the four touch channels have different distances from the finger during normal use by the user, the obtained values of S1, S2, S3, and S4 are different.
- the false touch judgment principle based on the solution shown in Figure 4 is as follows: when the user operates normally, the data collected by the four touch channels should be distributed near S1, S2, S3, and S4, and the value near the scroll wheel will be significantly higher on the far roller side. However, when there is an accidental touch, such as when the table is supported by the hand, a large area of the side wall of the housing is in contact with the skin, which will cause the four channels to have high values, and there is no fixed data distribution logic.
- the condition for judging whether there is a false trigger is: when the data collected by the four channels are all within ⁇ 10% of the range of S1, S2, S3, and S4, it is regarded as a normal trigger, and when the rest of the data is distributed, it is regarded as a false trigger.
- the percentage of the above-mentioned channel values can be adjusted according to the specific test results of the product, and may not be limited to 10%.
- This embodiment provides an anti-false touch design based on capacitance value detection, adopts a side sensing capacitance design of multiple touch channels, and can effectively distinguish between user operations and false trigger scenarios through signal collection and corresponding software control logic.
- the touch control structure includes a roller and a button arranged on the side wall of the wearable device, at least three touch channels are respectively arranged on the side wall of the casing, and the roller and the buttons At least one touch channel is set between the keys.
- FIG. 6 is a schematic diagram of the position of the second touch channel provided by the embodiment of the present application. This embodiment adopts a three-segment touch channel design, and the corresponding position of the touch channel is shown in FIG. 3 . , using three-segment capacitive touch channel settings. Among them, the touch channel 601 and the touch channel 602 are located on both sides of the scroll wheel 300 and are closer to the scroll wheel 300 than the touch channel 603.
- the touch channel 601 is located on the side of the scroll wheel 300 away from the key 600, and the touch channel 602 is located between the scroll wheel 300 and the key 600.
- the near-side capacitance of the scroll wheel, the touch channel 603 is located on the side of the key 600 away from the scroll wheel 300 , and is called the far-side capacitance of the scroll wheel.
- the touch channel should be as close to the screen as possible to reduce the influence of the wrist skin on the capacitance value.
- the touch channel 601 and touch channel 602 should be as close as possible to the scroll wheel, and the touch channel 603 should be as far away from the scroll wheel as possible to achieve better near-side capacitance and far-side capacitance of the scroll wheel. distinction.
- the touch channel can be arranged on the same FPC, attached to the side wall of the watch case, and connected with the capacitive touch sensor on the hard board and the main control unit in the form of a connector.
- the capacitive touch sensor receives and After processing the multi-channel data, send the data to the main control chip.
- a calibration and threshold value setting can be performed on the capacitance value of each channel.
- each channel is fitted, that is, the minimum and maximum values are fitted to 0 and the maximum value of the range. Taking 0 to 255 as an example, the actual fitting value S of the sampled data Ts after fitting for each channel is:
- the user's fingers can move the scroll wheel normally, and the values S1, S2, and S3 actually collected by each channel can be obtained.
- the user can be guided to test with normal operating habits through the App or other means, so that the user can perform the test in the manner shown in Figure 5 to obtain S1, S2, and S3. Since the three touch channels have different distances from the finger during normal use by the user, the values of S1, S2, and S3 are different.
- the logic of false triggering and normal triggering is: when the user is operating normally, the data collected by the three channels should be distributed around S1, S2, and S3, and the value on the side near the scroll wheel will be significantly higher than that on the side far from the scroll wheel.
- the determination condition for false triggering is: when the data collected by the three channels are all within ⁇ 10% of the range of S1, S2, and S3, it is regarded as a normal trigger, and when the rest of the data is distributed, it is regarded as a false trigger.
- the far-side capacitive channel can be placed on the button.
- the button can be expanded into a physical + touch two-in-one button, which can realize more control methods.
- the above-mentioned fingers of S3 can be modified.
- This embodiment is designed for watches or bracelets with side rollers, and adopts a three-channel side sensing capacitance design, which can effectively distinguish between user operations and false triggering scenarios through signal collection and corresponding software control logic.
- the present application also provides a storage medium on which a computer program is stored. When the computer program is executed, the steps provided in the above-mentioned embodiments can be realized.
- the storage medium may include: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program codes.
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Abstract
本申请一些实施例公开了一种防误触方法，应用于可穿戴设备，可穿戴设备包括触控结构和电容式触摸传感器，电容式触摸传感器用于采集至少两个触摸通道的电容值，至少两个触摸通道分别与触控结构的距离不相等，防误触方法包括：当检测到触发触控结构的事件时，获取电容式触摸传感器采集的每一触摸通道的电容值；判断所有触摸通道的电容值是否符合预设电容值分布状态；其中，预设电容值分布状态为非误触条件下触控结构被触发时所有触摸通道的电容值的分布状态；若否，则判定触控结构被误触，不响应触发触控结构的事件。本申请能够检测多种场景下的误触现象，提高了识别误触的准确率。本申请还公开了一种可穿戴设备及一种存储介质，具有以上有益效果。
Description
本申请要求于2021年6月30日提交中国专利局、申请号为202110744374.4、发明名称为“一种防误触方法、可穿戴设备及存储介质”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
本申请涉及设备控制技术领域，特别涉及一种防误触方法、一种可穿戴设备及一种存储介质。
随着智能可穿戴技术的发展，智能手表、智能手环等可穿戴设备已经被普遍使用。可穿戴设备上通常设置按键、滚轮、旋钮、旋转表冠等触控结构，用户通过按压或旋转触控结构实现与可穿戴设备的人机交互。
在实际应用中，常常存在由于用户误操作导致的触控结构误触，如手撑桌子时智能手表的大面积外壳都会有皮肤接触与压迫，此时产生表冠误触。本领域中主要通过分析用户状态(如是否抬腕、是否睡眠等)来判断是否存在误触现象，但是根据用户状态分析误触所覆盖的场景范围较少，无法准确识别误触现象。
因此，如何提高识别误触的准确率是本领域技术人员目前需要解决的技术问题。
发明内容
本申请的目的是提供一种防误触方法、一种可穿戴设备及一种存储介质，能够提高识别误触的准确率。
为解决上述技术问题，本申请提供一种防误触方法，应用于可穿戴设备，所述可穿戴设备包括触控结构和电容式触摸传感器，所述电容式触摸传感器用于采集至少两个触摸通道的电容值，至少两个所述触摸通道分别与所述触控结构的距离不相等，所述防误触方法包括：
当检测到触发所述触控结构的事件时，获取所述电容式触摸传感器采集的每一所述触摸通道的电容值；
判断所有所述触摸通道的电容值是否符合预设电容值分布状态；其中，所述预设电容值分布状态为非误触条件下所述触控结构被触发时所有所述触摸通道的电容值的分布状态；
若否，则判定所述触控结构被误触，不响应触发所述触控结构的事件。
可选的，在获取所述电容式触摸传感器采集的每一所述触摸通道的电容值之前，还包括：
对所述可穿戴设备进行佩戴检测；
若所述可穿戴设备处于佩戴状态，则进入获取所述电容式触摸传感器采集的每一所述触摸通道的电容值的步骤。
可选的，获取所述电容式触摸传感器采集的每一所述触摸通道的电容值包括：
利用所述电容式触摸传感器采集的每一所述触摸通道的通道值；
根据每一所述触摸通道的通道值区间和通道值进行拟合，得到每一所述触摸通道对应的电容值；其中，所述触摸通道的通道值区间包括最大通道值和最小通道值。
可选的，在判断所有所述触摸通道的电容值是否符合预设电容值分布状态之前，还包括：
采集用户在非误触条件下触发所述触控结构时每一所述触摸通道的参考电容值；
根据所有所述触摸通道的参考电容值设置所述预设电容值分布状态。
本申请还提供了一种可穿戴设备，包括：触控结构、电容式触摸传感器和主控芯片；
其中，所述电容式触摸传感器用于采集至少两个触摸通道的电容值，至少两个所述触摸通道分别与所述触控结构的距离不相等，所述主控芯片用于当检测到触发所述触控结构的事件时，获取所述电容式触摸传感器采集的每一所述触摸通道的电容值；还用于判断所有所述触摸通道的电容值是否符合预设电容值分布状态；其中，所述预设电容值分布状态为非误触条件下所述触控结构被触发时所有所述触摸通道的电容值的分布状态；若否，则判定所 述触控结构被误触，不响应触发所述触控结构的事件。
可选的，所述触控结构包括设置于所述可穿戴设备的外壳侧壁的滚轮，至少两个所述触摸通道分别设置于所述外壳侧壁。
可选的，所述触控结构包括设置于所述可穿戴设备的外壳侧壁的滚轮和按键，至少三个所述触摸通道分别设置于所述外壳侧壁，且所述滚轮和所述按键之间设置有至少一个所述触摸通道。
可选的，所述按键上设置有所述触摸通道。
可选的，所有的触摸通道设置于同一FPC板上，所述FPC板设置于所述可穿戴设备的外壳侧壁。
本申请还提供了一种存储介质，其上存储有计算机程序，所述计算机程序执行时实现上述防误触方法执行的步骤。
本申请提供了一种防误触方法，应用于可穿戴设备，所述可穿戴设备包括触控结构和电容式触摸传感器，所述电容式触摸传感器用于采集至少两个触摸通道的电容值，至少两个所述触摸通道分别与所述触控结构的距离不相等，所述防误触方法包括：当检测到触发所述触控结构的事件时，获取所述电容式触摸传感器采集的每一所述触摸通道的电容值；判断所有所述触摸通道的电容值是否符合预设电容值分布状态；其中，所述预设电容值分布状态为非误触条件下所述触控结构被触发时所有所述触摸通道的电容值的分布状态；若否，则判定所述触控结构被误触，不响应触发所述触控结构的事件。
本申请中的可穿戴设备包括触控结构和电容式触摸传感器，电容式触摸传感器能够采集至少两个触摸通道的电容值，上述至少两个触摸通道分别与触控结构之间的距离不相等，用户在靠近触摸通道时将会影响触摸通道的电荷量，因此在不存在误触的情况下触控结构被用户触发时，用户对于两个触摸通道的电容值的影响不同，进而可以基于所有触摸通道的电容值的分布状态实现误触识别。当检测到触发所述触控结构的事件时，电容式触摸传感器采集的每一所述触摸通道的电容值，并判断所有所述触摸通道的电容值是否符合预设电容值分布状态，若不符合，则说明检测到触控结构被误触，不对触发所述触控结构的事件进行响应。本申请的防误触方案能够检测多种场景下的误触现象，提高了识别误触的准确率。本申请同时还提供了一种可穿戴 设备和一种存储介质，具有上述有益效果，在此不再赘述。
为了更清楚地说明本申请实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一部分附图，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据提供的附图获得其他的附图。
图1为本申请实施例所提供的一种防误触方法的流程图；
图2为本申请实施例所提供的一种可穿戴设备的架构示意图；
图3为本申请实施例所提供的第一种触摸通道位置示意图；
图4为本申请实施例所提供的一种触摸通道的FPC布局示意图；
图5为本申请实施例所提供的一种用户触发触控结构的示意图；
图6为本申请实施例所提供的第二种触摸通道位置示意图。
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行描述，显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
随着智能可穿戴技术的发展，常规的物理按键方式逐渐无法满足用户的需求和场景的切换，许多厂商都推出了旋转表冠、滚轮、旋钮等触控结构设计。由于这些触控结构存在易受力而产生误触发现象，例如，滚轮存在易受力而产生滚动的误触发现象(如手撑桌子时，大面积外壳都会有皮肤接触与压迫)。本申请通过以下几个实施例提供新的可穿戴设备防误触方案，能够以低成本的方案对上述缺陷进行规避。
下面请参见图1，图1为本申请实施例所提供的一种防误触方法的流程图。
具体步骤可以包括：
S101：当检测到触发所述触控结构的事件时，获取电容式触摸传感器采 集的每一所述触摸通道的电容值；
其中，本实施例可以应用于智能手表、手环、AR眼镜或VR头盔等可穿戴设备，上述可穿戴设备可以包括触控结构、电容式触摸传感器Touch IC和主控芯片，电容式触摸传感器用于采集至少两个触摸通道的电容值并将采集的电容值返回至主控芯片，上述电容式触摸传感器采集电容值的至少两个触摸通道分别与所述触控结构的距离不相等。作为一种可行的实施方式，触控结构和触摸通道可以设置于可穿戴设备的同一外壳侧壁，以提升防误触的成功率。进一步的，电容式触摸传感器可以设置于主控芯片内。
本实施例中的触控结构可以包括按键、滚轮、旋钮、旋转表冠等其中一个或者几个的组合，例如，触控结构可以包括滚轮，或者包括两个按键，或者包括按键和滚轮等。本实施例可以通过按压或旋转的方式触发上述触控结构。触控结构与主控芯片连接，主控芯片可以检测到用户触发触控结构的事件，此时可以向电容式触摸传感器下发数据采集指令，以便获取电容式触摸传感器采集的每一所述触摸通道的电容值。还需要说明的是，按键可以是普通的可按压按键，也可是既可按压又可旋转的按键，滚轮可以是普通的可旋转滚轮，也可以是即可旋转也可按压的滚轮。
S102：判断所有触摸通道的电容值是否符合预设电容值分布状态；若是，则进入S103；若否，则进入S104；
其中，在本步骤之前还可以存在确定预设电容值分布状态的操作，预设电容值分布状态为非误触条件下所述触控结构被触发时所有所述触摸通道的电容值的分布状态。
可以理解的是，当触控结构被用户正常触发时，用户的手指对于距离触控结构越近的触摸通道的电容值的影响越大，因此可以基于触摸通道的电容值的分布状态实现误触识别。
S103：响应触发所述触控结构的事件；
其中，若所有触摸通道的电容值符合预设电容值分布状态，则说明不存在误触现象，此时主控芯片可以按照预设处理逻辑响应触发所述触控结构的事件，如屏幕唤醒、音量调整、接听电话等。
S104：判定所述触控结构被误触，不响应触发所述触控结构的事件。
其中，若所有触摸通道的电容值不符合预设电容值分布状态，则说明存 在误触现象，判定所述触控结构被误触，不响应触发所述触控结构的事件。
本实施例中的可穿戴设备包括触控结构和电容式触摸传感器，电容式触摸传感器能够采集至少两个触摸通道的电容值，且上述至少两个触摸通道分别与触控结构之间的距离不相等，用户在靠近触摸通道时将会影响触摸通道的电荷量，因此在不存在误触的情况下触控结构被用户触发时，用户对于两个触摸通道的电容值的影响不同，进而可以基于所有触摸通道的电容值的分布状态实现误触识别。当检测到触发所述触控结构的事件时，电容式触摸传感器采集的每一所述触摸通道的电容值，并判断所有所述触摸通道的电容值是否符合预设电容值分布状态，若不符合，则说明检测到触控结构被误触，不对触发所述触控结构的事件进行响应。本实施例的防误触方案能够检测多种场景下的误触现象，提高了识别误触的准确率。
作为对于图1对应实施例的进一步介绍，在获取所述电容式触摸传感器采集的每一所述触摸通道的电容值之前，还可以对所述可穿戴设备进行佩戴检测；若所述可穿戴设备处于佩戴状态，则进入S101获取所述电容式触摸传感器采集的每一所述触摸通道的电容值的步骤。通过上述方式，可穿戴设备能够在检测到用户正常佩戴时，再执行上述S101～S104的防误触方案，进而能够规避用户未佩戴操作时防误触检测逻辑紊乱的情况。具体的，佩戴检测可以通过穿穿戴设备的底壳光学或者电容感应实现，也可通过健康模组体征监测实现。具体的，可以利用传感器采集的佩戴状态数据进行佩戴检测；其中，所述佩戴状态数据包括体征传感器、距离传感器和运动传感器中任一种或任几种传感器采集的数据。上述体征传感器可以为用于检测佩戴者心率的传感器，也可以为用于检测佩戴者体温的传感器，还可以为同时检测心率和体温的传感器。
作为对于图1对应实施例的进一步介绍，在获取所述电容式触摸传感器采集的每一所述触摸通道的电容值之前，还可以存在对各个触摸通道的电容值进行校准和阈值设定的操作。
具体的，可以对用户手指未接触和完全接触触摸通道时的通道值进行采集，得到各个触摸通道的最大通道值Tmax和最小通道值Tmin，通过各个触 摸通道的最大通道值Tmax和最小通道值Tmin进行拟合，可以得到通道量程。在此基础上，获取所述电容式触摸传感器采集的每一所述触摸通道的电容值包括：利用所述电容式触摸传感器采集的每一所述触摸通道的通道值；根据每一所述触摸通道的通道值区间和通道值进行拟合，得到每一所述触摸通道对应的电容值；其中，所述触摸通道的通道值区间包括最大通道值Tmax和最小通道值Tmin。
以通道量程为0～255为例，则各通道拟合后触摸通道当前采样的通道值Ts实际拟合后的电容值S为：
作为对于图1对应实施例的进一步介绍，在判断所有所述触摸通道的电容值是否符合预设电容值分布状态之前，还可以采集用户在非误触条件下触发所述触控结构时每一所述触摸通道的参考电容值；根据所有所述触摸通道的参考电容值设置所述预设电容值分布状态。具体的，本实施例可以根据参考电容值±10％对应的电容值范围确定预设电容值分布状态。通过上述方式能够快速确定非误触条件下的预设电容值分布状态。
请参见图2，图2为本申请实施例所提供的一种可穿戴设备的架构示意图，如图2所示该设备可以包括：触控结构、电容式触摸传感器和主控芯片。
其中，所述电容式触摸传感器用于采集至少两个触摸通道(即touch通道)的电容值，至少两个所述触摸通道分别与所述触控结构的距离不相等，所述主控芯片用于当检测到触发所述触控结构的事件时，获取所述电容式触摸传感器采集的每一所述触摸通道的电容值；还用于判断所有所述触摸通道的电容值是否符合预设电容值分布状态；其中，所述预设电容值分布状态为非误触条件下所述触控结构被触发时所有所述触摸通道的电容值的分布状态；若否，则判定所述触控结构被误触，不响应触发所述触控结构的事件。
本实施例中的可穿戴设备包括触控结构和电容式触摸传感器，电容式触摸传感器能够采集至少两个触摸通道的电容值，且上述至少两个触摸通道分别与触控结构之间的距离不相等，用户在靠近触摸通道时将会影响触摸通道的电荷量，因此在不存在误触的情况下触控结构被用户触发时，用户对于两 个触摸通道的电容值的影响不同，进而可以基于所有触摸通道的电容值的分布状态实现误触识别。当检测到触发所述触控结构的事件时，电容式触摸传感器采集的每一所述触摸通道的电容值，并判断所有所述触摸通道的电容值是否符合预设电容值分布状态，若不符合，则说明检测到触控结构被误触，不对触发所述触控结构的事件进行响应。本实施例的防误触方案能够检测多种场景下的误触现象，提高了识别误触的准确率。
作为一种可行的实施方式，上述触控结构可以包括设置于可穿戴设备的外壳侧壁的滚轮，至少两个所述触摸通道分别设置于该外壳侧壁。进一步的，触摸通道的数量和设置位置影响防误触的准确率。请参见图3，图3为本申请实施例所提供的第一种触摸通道位置示意图，本实施例采用四段触摸通道设计，触摸通道302和触摸通道303分别设置于滚轮300的两侧，触摸通道302、触摸通道303均较触摸通道301和触摸通道304更靠近滚轮300，触摸通道302和触摸通道303称为滚轮近侧电容。触摸通道301和触摸通道304分别设置于滚轮300的两侧，称为滚轮远侧电容。可选的，触摸通道可以尽量靠近屏幕，以减少手腕皮肤对电容值的影响，触摸通道302和触摸通道303尽量靠近滚轮，触摸通道301和触摸通道304尽量远离滚轮，以实现更好的滚轮近侧电容与滚轮远侧电容的区分。
滚轮300的旋转方向可以有多种方式，滚轮的旋转轴线可以平行于设置滚轮的外壳侧壁所在的平面或者平行于外壳侧壁的切平面。例如，当可穿戴设备的外壳大体呈矩形时，滚轮的旋转轴线可以平行于设置滚轮的外壳侧壁，具体地，可以与外壳侧壁的长边平行，也可以与外壳侧壁的短边平行；当可穿戴设备的外壳大体呈圆形时，滚轮的旋转轴线平行于设置滚轮的外壳侧壁的切平面。
触摸通道301、触摸通道302、触摸通道303、触摸通道304沿外壳侧壁的周向分布。其中，当滚轮300的旋转轴线与外壳侧壁的长边平行时，触摸通道301、触摸通道302、触摸通道303、触摸通道304沿滚轮的旋转轴线分布。
请参见图4，图4为本申请实施例所提供的一种触摸通道的FPC布局示意图，所有的触摸通道设置于同一FPC板上，所述FPC板设置于所述可穿戴 设备的外壳侧壁，FPC板可以以连接器工艺(connector)的方式与硬板上的电容式触摸传感器和主控单元相连，电容式触摸传感器接受并处理多通道的数据后，将数据传送至主控芯片。
以智能手表为例，非误触条件下用户触发触控结构的示意图如图5所示，图5中的θ为用户手指与手表外壳侧壁的夹角，θ可以根据用户正常使用习惯设定。以四个触摸通道为例，用户手指正常拨动滚轮时，各触摸通道实际采集的值S1、S2、S3、S4(即预设电容值分布状态)。测试时，可以通过App等方式，指导用户以正常操作习惯进行测试。由于四个触摸通道在用户正常使用过程中，与手指的距离各不相同，因此得到的S1、S2、S3、S4值各有差异。
在图4所示方案的基础上的误触判断原理如下：当用户正常操作时，四个触摸通道采集的数据应该分布在S1,S2,S3,S4附近，且近滚轮侧的数值会明显高于远滚轮侧。而当出现误触时，例如手撑桌面时，外壳侧壁大面积与皮肤接触，会导致四个通道均有较高的数值，且没有固定的数据分布逻辑。因此判断是否误触的条件为：当四个通道采集的数据均位于S1,S2,S3,S4范围±10％时，视为正常触发，其余数据分布情况下，视为误触发。上述通道数值百分比可根据产品具体测试结果调整，可以不限定于10％。
本实施例提供了基于电容值检测的防误触设计，采用多个触摸通道的侧边感应电容设计，可以通过信号采集以及对应的软件控制逻辑，能够有效区分用户操作和误触发场景。
作为另一种可行的实施方式，触控结构包括设置于所述可穿戴设备的外壳侧壁的滚轮和按键，至少三个所述触摸通道分别设置于该外壳侧壁，且所述滚轮和所述按键之间设置有至少一个触摸通道。请参见图6，图6为本申请实施例所提供的第二种触摸通道位置示意图，本实施例采用三段触摸通道设计，对应触摸通道位置如图三所示。，采用三段电容触摸通道设置。其中触摸通道601和触摸通道602位于滚轮300两侧且较触摸通道603更靠近滚轮300，触摸通道601位于滚轮300远离按键600的一侧，触摸通道602位于滚轮300和按键600之间，称为滚轮近侧电容，触摸通道603位于按键600远离滚轮300的一侧，称为滚轮远侧电容。设计时，触摸通道尽量靠近屏幕， 以减少手腕皮肤对电容值的影响，触摸通道601和触摸通道602尽量靠近滚轮，触摸通道603尽量远离滚轮，以实现更好的滚轮近侧电容与远侧电容的区分。触摸通道可布局于同一条FPC上，贴附于手表的外壳侧壁，并以连接器工艺(connector)的方式与硬板上的电容式触摸传感器和主控单元相连，电容式触摸传感器接收并处理多通道的数据后，将数据传送至主控芯片。
针对本发明的三通道设计，可以先对各通道的电容值做一个校准和阈值设定。首先需进行未接触和完全接触时各通道的数值采集，作为各通道量程的最大值Tmax与最小值Tmin。并对各通道进行拟合，即将最小值和最大值拟合成0和量程最大值。以0～255为例，则各通道拟合后采样数据Ts实际拟合后的值S为：
记录正常使用时，用户手指正常拨动滚轮，可以得到各通道实际采集的值S1、S2、S3。测试时，可以通过App等方式指导用户以正常操作习惯进行测试，以便用户按照图五所示方式进行测试得到S1、S2、S3。由于三个触摸通道在用户正常使用过程中，与手指的距离各不相同，因此S1,S2,S3值各有差异。
误触发与正常触发的逻辑为：当用户正常操作时，三个通道采集的数据应该分布在S1,S2,S3附近，且近滚轮侧的数值会明显高于远滚轮侧。而当误操作时，例如手撑桌面时，外壳侧壁大面积与皮肤接触，会导致三个通道均有较高的数值，且没有固定的数据分布逻辑。因此误触的判定条件为：当三个通道采集的数据均位于S1,S2,S3范围±10％时，视为正常触发，其余数据分布情况下，视为误触发。
当按键位置与滚轮位置间隔较高时，可以将远侧电容通道放置于按键上，此时按键可扩展为物理+触控二合一按键，可以实现更多的操控方式。在此应用中，可以将上述S3的指进行修正。
本实施例针对侧边滚轮的手表或手环设计，采用三通道的侧边感应电容设计，可以通过信号采集以及对应的软件控制逻辑，有效区分用户操作和误触发场景。
由于装置部分的实施例与方法部分的实施例相互对应，因此装置部分的实施例请参见方法部分的实施例的描述，这里暂不赘述。
本申请还提供了一种存储介质，其上存有计算机程序，该计算机程序被执行时可以实现上述实施例所提供的步骤。该存储介质可以包括：U盘、移动硬盘、只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
说明书中各个实施例采用递进的方式描述，每个实施例重点说明的都是与其他实施例的不同之处，各个实施例之间相同相似部分互相参见即可。对于实施例公开的装置而言，由于其与实施例公开的方法相对应，所以描述的比较简单，相关之处参见方法部分说明即可。应当指出，对于本技术领域的普通技术人员来说，在不脱离本申请原理的前提下，还可以对本申请进行若干改进和修饰，这些改进和修饰也落入本申请权利要求的保护范围内。
还需要说明的是，在本说明书中，诸如第一和第二等之类的关系术语仅仅用来将一个实体或者操作与另一个实体或操作区分开来，而不一定要求或者暗示这些实体或操作之间存在任何这种实际的关系或者顺序。而且，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者设备不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者设备所固有的要素。在没有更多限制的状况下，由语句“包括一个……”限定的要素，并不排除在包括所述要素的过程、方法、物品或者设备中还存在另外的相同要素。
Claims (10)
- 一种防误触方法，其特征在于，应用于可穿戴设备，所述可穿戴设备包括触控结构和电容式触摸传感器，所述电容式触摸传感器用于采集至少两个触摸通道的电容值，至少两个所述触摸通道分别与所述触控结构的距离不相等，所述防误触方法包括：当检测到触发所述触控结构的事件时，获取所述电容式触摸传感器采集的每一所述触摸通道的电容值；判断所有所述触摸通道的电容值是否符合预设电容值分布状态；其中，所述预设电容值分布状态为非误触条件下所述触控结构被触发时所有所述触摸通道的电容值的分布状态；若否，则判定所述触控结构被误触，不响应触发所述触控结构的事件。
- 根据权利要求1所述防误触方法，其特征在于，在获取所述电容式触摸传感器采集的每一所述触摸通道的电容值之前，还包括：对所述可穿戴设备进行佩戴检测；若所述可穿戴设备处于佩戴状态，则进入获取所述电容式触摸传感器采集的每一所述触摸通道的电容值的步骤。
- 根据权利要求1所述防误触方法，其特征在于，获取所述电容式触摸传感器采集的每一所述触摸通道的电容值包括：利用所述电容式触摸传感器采集的每一所述触摸通道的通道值；根据每一所述触摸通道的通道值区间和通道值进行拟合，得到每一所述触摸通道对应的电容值；其中，所述触摸通道的通道值区间包括最大通道值和最小通道值。
- 根据权利要求1所述防误触方法，其特征在于，在判断所有所述触摸通道的电容值是否符合预设电容值分布状态之前，还包括：采集用户在非误触条件下触发所述触控结构时每一所述触摸通道的参考电容值；根据所有所述触摸通道的参考电容值设置所述预设电容值分布状态。
- 一种可穿戴设备，其特征在于，包括：触控结构、电容式触摸传感器和主控芯片；其中，所述电容式触摸传感器用于采集至少两个触摸通道的电容值，至少两个所述触摸通道分别与所述触控结构的距离不相等，所述主控芯片用于当检测到触发所述触控结构的事件时，获取所述电容式触摸传感器采集的每一所述触摸通道的电容值；还用于判断所有所述触摸通道的电容值是否符合预设电容值分布状态；其中，所述预设电容值分布状态为非误触条件下所述触控结构被触发时所有所述触摸通道的电容值的分布状态；若否，则判定所述触控结构被误触，不响应触发所述触控结构的事件。
- 根据权利要求5所述可穿戴设备，其特征在于，所述触控结构包括设置于所述可穿戴设备的外壳侧壁的滚轮，至少两个所述触摸通道分别设置于所述外壳侧壁。
- 根据权利要求5所述可穿戴设备，其特征在于，所述触控结构包括设置于所述可穿戴设备的外壳侧壁的滚轮和按键，至少三个所述触摸通道分别设置于所述外壳侧壁，且所述滚轮和所述按键之间设置有至少一个所述触摸通道。
- 根据权利要求7所述可穿戴设备，其特征在于，所述按键上设置有所述触摸通道。
- 根据权利要求5至8任一所述可穿戴设备，其特征在于，所有的触摸通道设置于同一FPC板上，所述FPC板设置于所述可穿戴设备的外壳侧壁。
- 一种存储介质，其特征在于，所述存储介质中存储有计算机可执行指令，所述计算机可执行指令被主控芯片加载并执行时，实现如权利要求1至4任一项所述防误触方法的步骤。
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