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WO2020191594A1 - 可穿戴设备、佩戴检测方法及存储介质 - Google Patents

可穿戴设备、佩戴检测方法及存储介质 Download PDF

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Publication number
WO2020191594A1
WO2020191594A1 PCT/CN2019/079578 CN2019079578W WO2020191594A1 WO 2020191594 A1 WO2020191594 A1 WO 2020191594A1 CN 2019079578 W CN2019079578 W CN 2019079578W WO 2020191594 A1 WO2020191594 A1 WO 2020191594A1
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WO
WIPO (PCT)
Prior art keywords
sensor
capacitance value
capacitance
wearable device
real
Prior art date
Application number
PCT/CN2019/079578
Other languages
English (en)
French (fr)
Inventor
郭子成
程树青
杨明
李富林
Original Assignee
深圳市汇顶科技股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 深圳市汇顶科技股份有限公司 filed Critical 深圳市汇顶科技股份有限公司
Priority to PCT/CN2019/079578 priority Critical patent/WO2020191594A1/zh
Priority to CN201980000557.6A priority patent/CN110114738B/zh
Priority to US16/890,816 priority patent/US11438685B2/en
Publication of WO2020191594A1 publication Critical patent/WO2020191594A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1041—Mechanical or electronic switches, or control elements
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/163—Wearable computers, e.g. on a belt
    • 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
    • G06F3/011—Arrangements for interaction with the human body, e.g. for user immersion in virtual reality
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R11/00—Transducers of moving-armature or moving-core type
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R15/00—Magnetostrictive transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1016—Earpieces of the intra-aural type
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R19/00—Electrostatic transducers

Definitions

  • This application relates to the field of wearable technology, and in particular to a wearable device, a wearing detection method and a storage medium.
  • the wearing detection method generally adopts an optical solution and a capacitance detection solution.
  • the optical solution usually needs to open a hole in the earphone shell to ensure that the sensor receives enough signals.
  • the process requires high, the structure and the sensing circuit system are more complicated, the waterproof performance is poor, and the mass production cost is high;
  • the capacitance detection solution is to integrate the sensor Deploying in the sensitive area where the earphone is in contact with the human ear usually needs to dig a groove on the earphone shell to locate the sensor, which increases the structural complexity of the earphone and limits the scope of application.
  • the above-mentioned wearing detection schemes all have the problems of complex structure, difficulty in mass production, and high cost.
  • the present application provides a wearable device, a wearing detection method, and a storage medium, which are used to solve the problems of complex structure, difficulty in mass production, and high cost of existing headset wearing detection solutions.
  • a first aspect of the present application provides a wearable device, including: a device housing, a capacitance sensor, a processing module, and a metal structure provided inside the device housing, the metal structure being attached to the capacitance sensor;
  • the metal structure is used to increase the electrostatic induction area of the capacitance sensor
  • the processing module is used to obtain the real-time capacitance value and the intrinsic capacitance value of the capacitance sensor to the ground, and determine the real-time capacitance value and the intrinsic capacitance value.
  • the capacitive sensor arranged inside the device housing to attach to the metal structure, it improves the wearing detection performance without changing the structure of the wearable device, and solves the existing detection solutions. Complex structure, difficult mass production and high cost.
  • the real-time difference is determined according to the first capacitance value and the second capacitance value
  • the first capacitance value is the difference between the real-time capacitance value of the metal structure to the ground and the intrinsic capacitance value of the metal structure to the ground;
  • the second capacitance value is the capacitance value between the metal structure and the capacitance sensor.
  • the capacitance sensor is a differential capacitance sensor.
  • the differential capacitance sensor is used to bond with the metal structure to eliminate the influence of temperature drift and improve the wearing detection performance.
  • the wearable device further includes: a metal bracket arranged inside the device housing;
  • the metal structure is the metal bracket.
  • attaching the metal bracket to the capacitance sensor can increase the human body sensitive area of the wearable device, so that the capacitance detection effect can be improved when the human body approaches or wears the wearable device.
  • the wearable device includes: earphones.
  • the wearable device further includes: a sounding unit arranged inside the device housing;
  • the metal structure is a metal shell and/or a magnet of the sound unit.
  • the metal shell and/or the magnet of the sound unit are the original components in the earphone, so there is no need to change the structure of the wearable device, and the structure complexity of the wearable device is reduced.
  • the type of the sound unit is a moving coil type
  • the bonding of the metal structure to the capacitance sensor includes:
  • the capacitance sensor is attached to one side of the metal casing and/or one side of the magnet.
  • the capacitive sensor includes: a sensor upper plate, a sensor intermediate medium, and a sensor lower plate;
  • the bonding of the capacitance sensor with one side of the metal casing and/or one side of the magnet includes:
  • the upper electrode plate of the sensor is attached to the first side of the metal shell and/or the first side of the magnet, and the first side is the side away from the wearing side of the wearable device.
  • the electrostatic induction area is increased and the signal volume is increased without changing the structure of the wearable device. , And improve the sweat-proof effect of the earphones and reduce the rate of accidental loss.
  • a part of the metal shell is wrapped inside the capacitive sensor.
  • the capacitive sensor includes: a sensor upper plate, a sensor intermediate medium, and a sensor lower plate;
  • the bonding of the metal structure to the capacitance sensor includes:
  • the part of the shell of the metal shell is attached to the bottom plate of the sensor.
  • This technical solution can also increase the electrostatic induction area when the human body approaches or wears the wearable device, and the solution has the advantages of simple installation and low mass production cost.
  • the metal structure is sheet-shaped, and the surface area of the metal structure that is attached to the capacitance sensor is larger than that of the capacitance sensor that is attached to the metal structure. The area of the surface.
  • the metal structure may be sheet-shaped, and the area of the surface of the metal structure that is attached to the capacitance sensor is larger than the area of the surface of the capacitance sensor that is attached to the metal structure, which expands the wearable
  • the sensitive area of the human body of the device improves the wearing detection performance.
  • a second aspect of the present application provides a wearing detection method, which is applied to a wearable device, and the wearable device includes: a device housing, a capacitance sensor arranged inside the device housing, a processing module, and a metal structural member.
  • the metal structure is attached to the capacitance sensor, and the metal structure is used to increase the electrostatic induction area of the capacitance sensor; the method includes:
  • the wearable device When the real-time difference is greater than a preset threshold, it is determined that the wearable device is in a worn state.
  • the determining the real-time difference between the real-time capacitance value and the inherent capacitance value includes:
  • the first capacitance value is the difference between the real-time capacitance value of the metal structure to the ground and the intrinsic capacitance value of the metal structure to the ground;
  • the second capacitance value is a capacitance value between the metal structure and the capacitance sensor
  • the real-time difference value is determined based on the first capacitance value and the second capacitance value.
  • a third aspect of the present application provides a storage medium that stores instructions in the storage medium, which when run on a computer, causes the computer to execute the method described in the second aspect and the possible designs of the second aspect.
  • the wearable device, the wearing detection method, and the storage medium provided by the embodiments of the present application, wherein the wearable device includes a device housing, a capacitance sensor arranged inside the device housing, a processing module, and a metal structure.
  • the metal structure It is attached to the capacitance sensor, and the metal structure can increase the electrostatic induction area of the capacitance sensor.
  • the processing module obtains the real-time capacitance value and the intrinsic capacitance value of the capacitance sensor to the ground, and determines the real-time capacitance value and the intrinsic capacitance The real-time difference of the value, and when the real-time difference exceeds a preset threshold, it is determined that the wearable device is in a worn state.
  • This technical solution improves the performance of wearing detection without changing the structure of the wearable device, and solves the problems of complex structure, difficulty in mass production, and high cost of existing detection solutions.
  • FIG. 1 is an exploded schematic diagram of Embodiment 1 of a wearable device provided by an embodiment of this application;
  • Figure 2 is a schematic diagram of the principle of the capacitive sensor detecting the proximity of a human body
  • Figure 3 is a schematic diagram of the proximity sensing principle of a metal structure
  • 4A and 4B are schematic diagrams of bonding the differential capacitance sensor and the metal structure
  • FIG. 5 is an exploded schematic diagram of the wearable device provided by this embodiment.
  • Figure 6 is an exploded schematic diagram of a semi-in-ear headset
  • Figure 7 is an exploded schematic diagram of in-ear headphones
  • FIG. 8 is a schematic flowchart of Embodiment 1 of a wearing detection method provided by an embodiment of this application;
  • FIG. 9 is a schematic flowchart of Embodiment 2 of a wearing detection method provided by an embodiment of the application.
  • the wearable device may be a device such as a smart bracelet, a smart watch, smart earphones, and smart glasses.
  • the wearable device needs to have a wearing state detection function, so that some functions of the wearable device can be controlled or optimized according to the detection result of the wearing state. For example, according to the wearing state of the bracelet, it can avoid Stillness is misjudged as sleep, etc.
  • Smart earphones especially Bluetooth earphones, are more and more widely used because of their compactness, portability, convenient operation, and rich usage scenarios.
  • the headset When the headset is not detected to be worn (earphone in-ear), the headset enters sleep mode to reduce power consumption. At the same time, when it is detected that the headset is worn, the headset enters the working state to improve the user experience. For example, when listening to a music scene, when the headset is detected by the user, the terminal device connected to the headset can automatically play music. It will stop automatically when downloading, simplifying user operation steps.
  • the current wear detection solutions mainly include optical detection solutions and capacitance detection solutions.
  • the above detection scheme has the problems of complex structure, difficulty in mass production and high cost.
  • the wearable device, wearing detection method, and storage medium provided by the embodiments of the present application, by bonding the metal structure in the wearable device to the capacitive sensor, increase the capacitance of the capacitive sensor without changing the structure of the wearable device.
  • the electrostatic induction area improves the performance of wearing detection and solves the problems of complex structure, difficulty in mass production and high cost of existing detection solutions.
  • FIG. 1 is an exploded schematic diagram of Embodiment 1 of a wearable device provided in an embodiment of this application.
  • the wearable device may include a device housing 11, a capacitance sensor 12 disposed inside the device housing 11, a processing module 13, and a metal structure 14, the metal structure 14 is attached to the capacitance sensor 12 Together.
  • the metal structure 14 is used to increase the electrostatic induction area of the capacitance sensor 12, and the processing module 13 is used to obtain the real-time capacitance value and the inherent capacitance value of the capacitance sensor 12 to the ground, and determine the The real-time difference between the real-time capacitance value and the inherent capacitance value, and when the real-time difference exceeds a preset threshold, it is determined that the wearable device is in a worn state.
  • the metal structure 14 is an internal component of the equipment housing 11, such as a metal shell or magnet of a sound unit, a metal bracket, etc. Therefore, the metal structure 14 has electrostatic induction characteristics. Therefore, in the embodiment of the present application, the electrostatic induction characteristics of the metal structure 14 in the device housing 11 can be used to bond the metal structure 14 to the capacitance sensor 12, so that the metal structure 14 is equivalent to the capacitance sensor 12.
  • the accessory part to jointly detect whether the human body is wearing the wearable device.
  • the capacitance of the capacitive sensor 12 to ground increases.
  • the real-time capacitance value of the capacitive sensor 12 to the ground the real-time capacitance value and inherent capacitance are determined.
  • the real-time difference in capacitance value is used to determine whether the wearable device is in a worn state by using the magnitude relationship between the real-time difference and the preset threshold.
  • the processing module 13 first obtains the real-time capacitance value of the capacitance sensor 12 to the ground and the intrinsic capacitance value of the capacitance sensor 12 to the ground, and determines the real-time difference between the real-time capacitance value and the intrinsic capacitance value. Then determine whether the real-time difference exceeds the preset threshold. When the real-time difference is greater than the preset threshold, the wearable device is determined to be in a worn state; when the real-time difference is less than or equal to the preset threshold, the wearable is determined The device is not worn, that is, it is off.
  • the processing module 13 may include a capacitance detection circuit.
  • the capacitance detection circuit may be used to detect the real-time capacitance value and the intrinsic capacitance value between the capacitance sensor 12 and the ground.
  • the capacitive sensor 12 is installed in a non-sensitive area of the human body in a wearable device, when the human body approaches or touches the capacitive sensor 12, the capacitance of the capacitive sensor 12 to ground increases slightly. When the capacitive sensor 12 is touched, the capacitance of the capacitive sensor 12 to the ground is increased, and the capacitive sensor 12 can be installed in the sensitive area of the human body on the wearing side of the wearable device.
  • FIG. 1 exemplarily shows an earplug of a headset.
  • the earplug may include at least the aforementioned device housing 11, a capacitive sensor 12, a processing module 13, and a metal structure 14 arranged inside the device housing 11. In practical applications, it may also include other devices. Repeat it again.
  • FIG. 1 uses a wearable device as a headset model for description, but those skilled in the art should understand that this headset model is only an exemplary description. In actual use, those skilled in the art can refer to this Apply for the solution of the embodiment and choose other models to implement the technical solution.
  • FIG. 1 takes an earplug as an example for illustration.
  • a person skilled in the art can refer to the solution of the embodiment of this application and choose a pair of earphones to implement this solution; it should be noted that multiple earplugs
  • the wearing detection or touch operation of the device may or may not be independent of each other, which is not limited in this embodiment.
  • the metal shell of the sounding unit is usually not electrically connected to other devices.
  • the capacitive sensor 12 when the capacitive sensor 12 is installed, it is necessary to bypass the sounding unit and be as close as possible to the wearable.
  • the sensitive area of the human body of the device is to prevent the metal shell of the sound unit from causing interference to the capacitive sensor 12, but this may affect the sound quality of the headset, increase the structural design and installation complexity.
  • the sounding unit of the earphone is used to mount the capacitive sensor 12 on the first side of the sounding unit, and the first side is the side away from the wearing side.
  • the sound unit includes a metal casing and/or a magnet. Therefore, the capacitive sensor is installed on the first side of the metal casing and/or magnet, and the metal casing and/or magnet is used as the middle of the capacitive sensor 12 and the human body. Medium to increase the electrostatic induction area, thereby increasing the amount of signal.
  • the solution of using the metal structure 14 and the capacitive sensor 12 to realize wearing detection can be applied to earphones of different forms, including but not limited to in-ear, semi- In-ear type, earplug type, head-mounted type, etc.
  • the metal structure 14 used includes but is not limited to the metal shell and/or magnet of the sound unit, the metal bracket used to fix other components in the earphone, etc.
  • the capacitive sensor 12 and The metal structure 14 can also be combined in various ways, which will not be described here.
  • the magnet of the sound unit generally refers to a permanent magnet.
  • the capacitance detection function of the processing module 13 can be used to detect the real-time capacitance value and the inherent capacitance value of the capacitance sensor 12 to the ground, and then based on the real-time capacitance value and inherent capacitance value.
  • the real-time difference of the capacitance value realizes the wear and removal detection function of the wearable device, without basically changing the internal structure of the wearable device, not modifying the shell structure of the wearable device, or occupying the internal space of the wearable device.
  • the wearing detection performance of the wearable device is improved. Therefore, the wearable device of this embodiment has the characteristics of being insensitive to the deployment position of the capacitive sensor 12, low cost, flexible application, simple installation, and low difficulty in mass production.
  • the wearable device provided by the embodiment of the present application includes a device housing, a capacitance sensor, a processing module, and a metal structure arranged inside the device housing.
  • the metal structure is attached to the capacitance sensor, and the metal structure can be increased.
  • the threshold it is determined that the wearable device is in a worn state.
  • FIG. 2 is a schematic diagram of the principle of the capacitive sensor detecting the proximity of a human body.
  • Figure 3 is a schematic diagram of the proximity sensing principle of a metal structure.
  • the capacitance sensor 12 includes: a sensor upper electrode plate 21, a sensor intermediate medium 22 and a sensor lower electrode plate 23.
  • the sensor upper plate 21, the sensor intermediate medium 22, and the sensor lower plate 23 form a capacitive sensor 12, which is equivalent to a flat capacitive structure.
  • the capacitance between the upper electrode plate 21 of the sensor and the lower electrode plate 23 of the sensor can be represented by the capacitance C B.
  • the upper electrode plate 21 of the sensor is used to sense whether the human body is close.
  • the electric field lines 24 emitted by the upper electrode plate 21 of the sensor are affected by the human body, and the capacitance value of the upper electrode plate 21 of the sensor to the ground changes, so that There is a real difference between the plates 21 pairs occurs in real time and the inherent capacitance value of the capacitance value of the sensor, the real time difference corresponding to the capacitance C can be represented by 10.
  • the capacitance C 10 corresponding to the real-time difference can be determined according to the capacitance value corresponding to the capacitance C BK and the capacitance value corresponding to the capacitance C BG .
  • the capacitance C 10 corresponding to the real-time difference can be the capacitance C BK and the capacitance C BG
  • the capacitance value after the series connection, the capacitance C BK can be equivalent to the capacitance between the human body and the upper electrode plate 21 of the sensor, and the capacitance C BG can be equivalent to the capacitance of the human body to the ground.
  • the electrostatic induction effect of the metal structure 14 can be used as a part of the capacitive sensor 12 to expand the sensitive range of the human body approaching or contacting.
  • the basic principle is shown in FIG. 3.
  • a metal structure 14 is attached to the upper electrode plate 21 of the sensor.
  • the capacitance between the metal structure 14 and the capacitance sensor 12 can be equivalent to the second
  • the capacitance value corresponding to the capacitance C 2 and the second capacitance C 2 is called the second capacitance value.
  • the second capacitance value is related to the area size of the upper electrode plate 21 of the sensor, the bonding degree of the upper electrode plate 21 of the sensor and the metal structure 14 and the dielectric constant of the bonding material.
  • the capacitance sensor 12 is charged by the power supply V TX , the upper electrode plate 21 of the sensor is positively charged, and the lower electrode plate 23 of the sensor is negatively charged. Since the metal structure 14 has a large number of free electrons, and according to the characteristics of charge repulsion and attraction of opposite sexes, the bottom surface of the metal structure 14 will induce negative charges, and the top surface of the metal structure 14 will induce positive charges.
  • These positive charge emitting electric field lines 24 can induce the proximity of the human body, which is equivalent to the metal structure 14 as an intermediate medium between the capacitance sensor 12 and the human body. Compared with the electromagnetic field propagating in the air, the electric field propagating in the metal structure 14 attenuates It greatly reduces and guides the electric field lines 24 to diffuse to the outside, expanding the electrostatic induction area.
  • the real-time difference may be determined based on the first capacitance value and the second capacitance value, where the first capacitance value is the real-time capacitance value of the metal structure 14 to ground and the intrinsic capacitance value of the metal structure 14 to ground.
  • the second capacitance value is the capacitance value between the metal structure 14 and the capacitance sensor 12.
  • the capacitance corresponding to the first capacitance value may be represented by a capacitor C 1
  • the capacitance corresponding to the second capacitance value may be represented by a capacitance C 2
  • the real-time difference can be interpreted as the value of the capacitance C 1 corresponding to the first capacitance value and the capacitance C 2 corresponding to the second capacitance value in series, namely In practical applications, since the second capacitance value is much greater than the first capacitance value, the real-time difference is approximately equal to the second capacitance value.
  • the metal structure 14 may be sheet-shaped, and the surface area of the metal structure 14 that is attached to the capacitance sensor 12 is larger than that of the capacitance sensor 12 that attaches to the metal structure 14
  • the area of the combined surface enlarges the human body sensitive area of the wearable device. Therefore, in this embodiment, in the scene where the metal structure 14 and the capacitive sensor 12 are attached, when the human body approaches or wears the wearable device, The real-time difference between the real-time capacitance value of the capacitance sensor 12 to the ground and the inherent capacitance value of the capacitance sensor 12 to the ground becomes larger, which improves the wearing detection performance of the wearable device.
  • the bonding methods of the capacitive sensor 12 and the floating metal can be various.
  • the capacitive sensor 12 in order to eliminate the temperature drift of the capacitive sensor 12, can be implemented based on the principle of differential driving, that is, the capacitive sensor 12 is a differential capacitance sensor.
  • FIGS. 4A and 4B are schematic diagrams of bonding the differential capacitance sensor and the metal structure.
  • the differential capacitance sensor 120 includes: a sensor differential positive plate 210, a sensor intermediate medium 22, and a sensor differential negative plate 230.
  • FIGS. 4A and 4B exemplarily show two bonding methods.
  • FIG. 4A shows a schematic diagram of the structure of the sensor differential positive plate 210 and the metal structure 14 being attached
  • FIG. 4B shows the structure diagram of the sensor differential negative plate 230 and the metal structure 14 being attached, regardless of whether the sensor differential is used
  • the positive plate 210 is attached to the metal structure 14, or the sensor differential negative plate 230 is attached to the metal structure 14.
  • Both attachment methods can make the capacitive sensor 12 contact the ground when the human body approaches or wears the wearable device.
  • the capacitance increase becomes larger, that is, the real-time capacitance value change range corresponding to the capacitance sensor 12 is increased, which improves the wearing detection performance.
  • the differential capacitance sensor 120 has two power supplies V TX' and V TX , where the power supply V TX is connected to the sensor differential positive plate 210, and the power supply V TX' is connected to the sensor differential negative plate 230 .
  • the differential capacitance sensor 120 is used to bond with the metal structure 14 to eliminate the influence of temperature drift and improve the wearing detection performance.
  • the wearable device may further include: a metal bracket arranged inside the device housing 11.
  • the metal structure 14 is a metal bracket.
  • the metal bracket when there is a metal bracket inside the device housing 11 of the wearable device, for example, a bracket for supporting, the metal bracket is not electrically connected to other electrical devices, so that the metal bracket can be It is attached to the capacitance sensor 12 to increase the human sensitive area of the wearable device, so that the capacitance detection effect can be improved when the human body approaches or wears the wearable device.
  • the metal parts inside the device that meet the requirements of no electrical connection may include a metal bracket, so that the metal bracket is attached to the capacitive sensor 12 to increase The electrostatic induction area of the human body to improve the wearing performance of wearable devices.
  • the bonding method of the capacitive sensor 12 and the metal structure 14 is usually determined by the shape of the metal structure. For example, it can be divided into the bonding of the upper electrode plate 21 of the sensor and the metal structure 14 and the bonding of the lower electrode plate 23 of the sensor. The way the metal structure 14 is attached. The embodiment of the present application does not limit the combination of the capacitive sensor 12 and the metal structure 14.
  • the wearable device includes earphones.
  • the metal structure 14 in the earphone is used for explanation.
  • FIG. 5 is an exploded schematic diagram of the wearable device provided by this embodiment. As shown in FIG. 5, the wearable device further includes: a sound emitting unit 15 arranged inside the device housing 11.
  • the above-mentioned metal structure 14 is the metal shell 150 and/or magnet of the sound unit 15.
  • the wearing detection of the optical or traditional capacitive solution generally requires the capacitive sensor 12 to be installed in the front mouth tube or the sound cavity, which requires sacrifice of sound quality and is difficult to install.
  • the embodiment of the present application adopts the above-mentioned solution.
  • the wearable device further includes a sounding unit 15 arranged inside the device housing 11, the metal shell 150 of the sounding unit 15 is used as the metal The structural member 14 and the capacitance sensor 12 are bonded together.
  • the metal structural member 14 may be a metal shell and a magnet. This embodiment does not limit the specific manifestation of the metal structural member 14, which can be determined according to actual conditions.
  • the device housing 11 also has a device mainboard 16 inside, and various circuits are deployed on the device mainboard 16 to realize the functions of the wearable device.
  • the aforementioned processing module 13 may be deployed on the main board 16 of the device.
  • the wearable device further includes a silicone sleeve 17, which can be arranged outside the device housing 11, on the one hand to protect the device housing 11, and on the other hand to improve user wear The comfort of the time.
  • a silicone sleeve 17 which can be arranged outside the device housing 11, on the one hand to protect the device housing 11, and on the other hand to improve user wear The comfort of the time.
  • the type of the sounding unit 15 is a moving coil type, and the bonding of the above-mentioned metal structural member 14 and the capacitive sensor 12 can be achieved in the following manner:
  • the capacitive sensor 12 is attached to one side of the metal casing and/or one side of the magnet.
  • the capacitive sensor 12 when the capacitive sensor 12 includes: a sensor upper plate 21, a sensor intermediate medium 22, and a sensor lower plate 23, the capacitive sensor 12 can be attached to one side of the metal shell and/or one side of the magnet through the following The way is realized: the upper pole plate 21 of the sensor is attached to the first side of the metal shell and/or the first side of the magnet, and the first side is the side away from the wearing side of the wearable device.
  • FIG. 6 is an exploded schematic diagram of a semi-in-ear headset.
  • the sound unit 15 is usually a moving coil type, and its shell is generally a metal piece without any electrical connection with other electrical devices, so that the capacitive sensor 12 can be attached to the headset
  • the first side of the metal housing 150 of the sound generating unit 15 (that is, the side away from the wearing side of the wearable device) utilizes the electrostatic induction characteristics of the metal housing 150 to expand the sensitive area of capacitance detection and realize non-contact wearing detection. In this way, without changing the structure of the wearable device, the electrostatic induction area is increased, the signal volume is increased, and the sweat-proof effect of the earphone is improved, and the false off rate is reduced.
  • part of the shell of the metal shell 150 is wrapped inside the capacitive sensor 12.
  • a part of the shell of the metal shell 150 is attached to the bottom plate 23 of the sensor.
  • Fig. 7 is an exploded schematic diagram of an in-ear earphone.
  • the sounding unit 15 is installed in the front mouth part.
  • the capacitive sensor 12 can wrap part of the outer shell of the sounding unit 15, so that the part of the housing is connected to the bottom plate 23 of the sensor.
  • the electrostatic induction area can also be enlarged, and the solution has the advantages of simple installation and low mass production cost.
  • a dust-proof net 18 is further provided at the front mouth of the earphone, and the dust-proof net 18 can prevent dust from entering the earphone housing to a certain extent.
  • the metal parts inside the device that do not have any electrical connections are generally the metal shell of the sound unit and the magnet of the sound unit.
  • Some types of wearable devices may have metal brackets, capacitive sensors 12 and metal
  • the joining method of the structural member 14 is generally determined by the shape of the metal structural member 14.
  • the bonding of the capacitive sensor 12 and the metal structure 14 can be divided into methods such as bonding the upper electrode plate 21 of the sensor and the metal structure 14 and bonding the lower electrode plate 23 of the sensor and the metal structure 14.
  • the embodiment of the present application does not limit the combination of the capacitive sensor 12 and the metal structure 14.
  • this embodiment is based on the existing wearing detection method. It is necessary to open holes or grooves in the earphone shell (sensitive area in contact with the human body) so that the capacitive sensor can obtain sufficient signals, which will sacrifice the earphone. The original sound quality, resulting in high structural complexity, and high mass production cost.
  • the use of metal structural parts arranged in the equipment shell and the capacitive sensor are used to expand the electrostatic induction area, improve the wearing detection efficiency, and solve the above problems.
  • the application design of the solution of this embodiment is flexible and can be applied to any wearable device including but not limited to earphones, with a wide range of applications.
  • FIG. 8 is a schematic flowchart of Embodiment 1 of a wearing detection method provided by an embodiment of this application.
  • the method is applied to the wearable device shown in FIGS. 1 to 7, and the wearable device may include: a device housing, a capacitance sensor arranged inside the device housing, a processing module, and a metal structure, and the metal structure is connected to The capacitive sensor is attached, and the metal structure is used to enlarge the electrostatic induction area of the capacitive sensor.
  • the wearing detection method may include the following steps:
  • Step 81 Obtain the real-time capacitance value and the intrinsic capacitance value of the capacitance sensor to the ground.
  • the wearable device can detect the capacitance value of the capacitance sensor to ground in real time through the processing module. Normally, when the human body is not close, the capacitance of the capacitance sensor to the ground detected by the processing module is close to unchanged, which can be considered as a capacitance. The intrinsic capacitance value of the sensor to ground.
  • the wearable device When the human body approaches the wearable device, the wearable device detects a large change in the capacitance of the capacitance sensor to the ground through the processing module, and obtains the real-time capacitance value of the capacitance sensor to the ground.
  • Step 82 Determine the real-time difference between the real-time capacitance value and the inherent capacitance value.
  • the processing module of the wearable device may also calculate the real-time difference between the real-time capacitance value and the inherent capacitance value according to the acquired real-time capacitance value and the inherent capacitance value of the capacitance sensor to the ground.
  • the processing module of the wearable device may also calculate the real-time difference between the real-time capacitance value and the inherent capacitance value according to the acquired real-time capacitance value and the inherent capacitance value of the capacitance sensor to the ground.
  • Step 83 Determine whether the real-time difference is greater than the preset threshold; if yes, go to step 84; if not, go to step 85.
  • a preset threshold may be set inside the wearable device, and the preset threshold is used to indicate the critical value of the wearable device in the worn state and the unworn state.
  • the wearable device can compare the determined real-time difference with a preset threshold, and determine the state of the wearable device and the working mode of the wearable device according to the comparison result.
  • Step 84 Determine that the wearable device is in a worn state, and control the wearable device to enter a working state.
  • the wearable device determines that the real-time difference between the above-mentioned real-time capacitance value and the above-mentioned inherent capacitance value is greater than a preset threshold, it is considered that the wearable device is in a worn state. Further, in order to improve the user experience, the wearable device can automatically enter the working state from the sleep state.
  • Step 85 Determine that the wearable device is in an unworn state, and maintain the wearable device in a sleep mode.
  • the wearable device determines that the real-time difference between the aforementioned real-time capacitance value and the aforementioned inherent capacitance value is less than or equal to a preset threshold, the wearable device is considered to be in an unworn state. In order to reduce the power consumption of the wearable device, the wearable device is maintained in a sleep mode, thereby improving the endurance performance.
  • the wearing detection method determines the real-time difference between the real-time capacitance value and the inherent capacitance value by obtaining the real-time capacitance value and the inherent capacitance value of the capacitance sensor to the ground, and then when the real-time difference value is greater than a preset threshold, Determine that the wearable device is in the worn state, and control the wearable device to enter the working state, and when the wearable device determines that the real-time difference between the above-mentioned real-time capacitance value and the above-mentioned inherent capacitance value is less than or equal to a preset threshold, the The wearable device is in an unworn state, and the wearable device is maintained in a sleep mode.
  • This technical solution can improve the wearing detection performance of the wearable device, and solves the problems of complex structure, difficulty in mass production and high cost of existing detection solutions.
  • FIG. 9 is a schematic flowchart of Embodiment 2 of the wearing detection method provided by the embodiment of this application.
  • the above step 82 can be implemented through the following steps:
  • Step 91 Obtain a first capacitance value, where the first capacitance value is the difference between the real-time capacitance value of the metal structure to the ground and the intrinsic capacitance value of the metal structure to the ground.
  • the metal structure has an inherent capacitance value to the ground.
  • the real-time capacitance value of the metal structure to the ground gradually increases. The difference between the real-time capacitance value of the metal structure to the ground and the inherent capacitance value of the metal structure to the ground is obtained, that is, the first capacitance value.
  • Step 92 Obtain a second capacitance value, where the second capacitance value is the capacitance value between the metal structure and the capacitance sensor.
  • the second capacitor in view of the electrostatic induction characteristics of the metal structure, when the metal structure is attached to the capacitance sensor, there is a capacitance value between the metal structure and the capacitance sensor. In this embodiment, it is called the second capacitor. value.
  • the magnitude of the second capacitance value can be obtained through the processing module.
  • Step 93 Determine the real-time difference based on the first capacitance value and the second capacitance value.
  • the metal structure is used as an accessory part of the capacitance sensor to sense the proximity and wearing of the human body. Therefore, the real-time difference can be interpreted as the capacitance corresponding to the first capacitance value and the capacitance corresponding to the second capacitance value in series After the value.
  • the wearable device obtains a first capacitance value
  • the first capacitance value is the difference between the real-time capacitance value of the metal structure to the ground and the intrinsic capacitance value of the metal structure to the ground, and the first capacitance value is obtained.
  • Two capacitance values is the capacitance value between the metal structure and the capacitance sensor, and the real-time difference is determined based on the first capacitance value and the second capacitance value.
  • the capacitance sensor is a differential capacitance sensor.
  • the processor may be an integrated circuit chip with signal processing capabilities.
  • the steps of the foregoing method embodiments can be completed by hardware integrated logic circuits in the processor or instructions in the form of software.
  • the aforementioned processor may be a general-purpose processor, a digital signal processor (digital signal processor, DSP), an application specific integrated circuit (ASIC), a ready-made programmable gate array (field programmable gate array, FPGA) or other Programming logic devices, discrete gates or transistor logic devices, discrete hardware components.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • the general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like.
  • the steps of the method disclosed in the embodiments of the present application may be directly embodied as being executed and completed by a hardware decoding processor, or executed and completed by a combination of hardware and software modules in the decoding processor.
  • the software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers.
  • the storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.
  • the memory in the embodiment of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory can be read-only memory (ROM), programmable read-only memory (programmable rom, PROM), erasable programmable read-only memory (erasable PROM, EPROM), and electrically available Erase programmable read-only memory (electrically EPROM, EEPROM) or flash memory.
  • the volatile memory may be random access memory (RAM), which is used as an external cache.
  • RAM random access memory
  • static random access memory static random access memory
  • dynamic RAM dynamic random access memory
  • DRAM dynamic random access memory
  • SDRAM synchronous dynamic random access memory
  • double data rate synchronous dynamic random access memory double data rate SDRAM, DDR SDRAM
  • enhanced synchronous dynamic random access memory enhanced SDRAM, ESDRAM
  • serial link DRAM SLDRAM
  • direct rambus RAM direct rambus RAM
  • the present application also provides a storage medium that stores instructions in the storage medium, which when running on a computer, enables the computer to implement the above-mentioned wearing detection method.
  • a storage medium that stores instructions in the storage medium, which when running on a computer, enables the computer to implement the above-mentioned wearing detection method.
  • “at least one” refers to one or more, and “multiple” refers to two or more.
  • “And/or” describes the association relationship of the associated objects, indicating that there can be three relationships, for example, A and/or B, which can mean: A alone exists, both A and B exist, and B exists alone, where A, B can be singular or plural.
  • the character “/” generally indicates that the associated objects before and after are in an “or” relationship; in the formula, the character "/” indicates that the associated objects before and after are in a "division” relationship.
  • the size of the sequence numbers of the foregoing processes does not mean the order of execution.
  • the execution order of each process should be determined by its function and internal logic, and should not be implemented in this application.
  • the implementation process of the example constitutes any limitation.

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Abstract

本申请实施例提供一种可穿戴设备、佩戴检测方法及存储介质，其中，该可穿戴设备包括：设备壳体、设置在所述设备壳体内部的电容传感器、处理模块和金属结构件，该金属结构件与电容传感器贴合，该金属结构件用于增大该电容传感器的静电感应区域，该处理模块用于获取电容传感器对地的实时电容值和固有电容值，确定出该实时电容值与该固有电容值的实时差值，以及在该实时差值大于预设阈值时，确定可穿戴设备处于已佩戴状态。该技术方案在不改变可穿戴设备结构的情况下，提高了佩戴检测性能，解决了现有检测方案存在的结构复杂，量产难度和成本高的问题。

Description

可穿戴设备、佩戴检测方法及存储介质 技术领域
本申请涉及可穿戴技术领域，尤其涉及一种可穿戴设备、佩戴检测方法及存储介质。
背景技术
随着科技的发展，电子设备越来越智能化，比如，大多数的无线耳机具有佩戴检测功能，当未检测到耳机被佩戴时，自动进入睡眠状态，而当检测到耳机被佩戴时，迅速从“睡眠”中苏醒，进入工作状态，快速响应用户操作，在实现降低功耗、延长续航目的的同时，提升了用户体验。
现有技术中，佩戴检测方法一般采用光学方案、电容检测方案。其中，光学方案为保证传感器接收到足够的信号通常需要在耳机外壳上开孔，工艺要求高、结构和传感电路系统较为复杂、防水性能较差、量产成本高；电容检测方案为了将传感器部署在耳机与人耳接触的敏感区域，通常需要在耳机外壳上挖槽以定位传感器，增加了耳机的结构复杂度，限制了应用范围。
综上所述，上述佩戴检测方案均存在结构复杂，量产难度和成本高的问题。
发明内容
本申请提供一种可穿戴设备、佩戴检测方法及存储介质，用于解决现有耳机佩戴检测方案存在的结构复杂、量产难度和成本高的问题。
本申请第一方面提供一种可穿戴设备，包括：设备壳体、设置在所述设备壳体内部的电容传感器、处理模块和金属结构件，所述金属结构件与所述电容传感器贴合；
所述金属结构件用于增大所述电容传感器的静电感应区域，所述处理模块用于获取所述电容传感器对地的实时电容值和固有电容值，确定出所述实时电容值与所述固有电容值的实时差值，以及在所述实时差值大于预设阈值时，确定所述可穿戴设备处于已佩戴状态。
在本实施例中，通过利用设置在设备壳体内部的电容传感器与金属结构件贴合，其在不改变可穿戴设备结构的情况下，提高了佩戴检测性能，解决了现有检测方案存在的结构复杂，量产难度和成本高的问题。
在第一方面的一种可能设计中，所述实时差值是根据第一电容值与第二电容值确定的；
所述第一电容值为所述金属结构件对地的实时电容值与所述金属结构件对地的固有电容值的差值；
所述第二电容值为所述金属结构件与所述电容传感器之间的电容值。
在第一方面的另一种可能设计中，所述电容传感器为差分电容传感器。
本实施例中，利用差分电容传感器与金属结构件贴合，可以消除温漂的影响，提高佩戴检测性能。
在第一方面的再一种可能设计中，所述可穿戴设备还包括：设置在所述设备壳体内部的金属支架；
所述金属结构件为所述金属支架。
在本实施例中，将金属支架与电容传感器贴合，可以增大该可穿戴设备的人体敏感区域，使得人体靠近或佩戴该可穿戴设备时可以提升电容检测效果。
在第一方面的又一种可能设计中，所述可穿戴设备包括：耳机。
在第一方面的上述可能设计中，所述可穿戴设备还包括：设置在所述设备壳体内部的发声单元；
所述金属结构件为所述发声单元的金属外壳和/或磁铁。
在本实施例中，发声单元的金属外壳和/或磁铁为耳机中的原有元件，这样不必改变可穿戴设备的结构，降低了可穿戴设备的结构复杂度。
在第一方面的上述可能设计中，所述发声单元的类型为动圈类型，所述金属结构件与所述电容传感器贴合包括：
所述电容传感器与所述金属外壳的一侧和/或所述磁铁的一侧贴合。
在第一方面的上述可能设计中，所述电容传感器包括：传感器上极板、传感器中间介质和传感器下极板；
所述电容传感器与所述金属外壳的一侧和/或所述磁铁的一侧贴合，包括：
所述传感器上极板与所述金属外壳的第一侧和/或所述磁铁的第一侧贴 合，所述第一侧为远离所述可穿戴设备的佩戴侧的一侧。
在本实施例中，通过将传感器上极板与金属外壳的第一侧和/或磁铁的第一侧贴合，在不改动可穿戴设备结构的基础上增大了静电感应面积、提高了信号量，而且提升了耳机防汗液效果、降低误脱率。
在第一方面的又一种可能设计中，所述金属外壳的部分壳体被包裹在所述电容传感器的内侧。
在第一方面的上述可能设计中，所述电容传感器包括：传感器上极板、传感器中间介质和传感器下极板；
所述金属结构件与所述电容传感器贴合包括：
所述金属外壳的所述部分壳体与所述传感器下极板贴合。
该技术方案在人体靠近或佩戴该可穿戴设备时，同样可以增大静电感应区域，而且该方案具有安装简单、量产成本低等优点。
在第一方面的上述任一可能设计中，所述金属结构件为片状，所述金属结构件中与所述电容传感器贴合的表面的面积大于电容传感器中与所述金属结构件贴合的表面的面积。
在本实施例中，金属结构件可以为片状，且该金属结构件中与该电容传感器贴合的表面的面积大于电容传感器中与该金属结构件贴合的表面的面积，扩大了可穿戴设备的人体敏感区域，提高了佩戴检测性能。
本申请第二方面提供一种佩戴检测方法，应用于可穿戴设备，所述可穿戴设备包括：设备壳体、设置在所述设备壳体内部的电容传感器、处理模块和金属结构件，所述金属结构件与所述电容传感器贴合，所述金属结构件用于增大所述电容传感器的静电感应区域；所述方法包括：
获取所述电容传感器对地的实时电容值和固有电容值；
确定所述实时电容值与所述固有电容值的实时差值；
在所述实时差值大于预设阈值时，确定所述可穿戴设备处于已佩戴状态。
在第二方面的一种可能设计中，所述确定所述实时电容值与所述固有电容值的实时差值，包括：
获取第一电容值，所述第一电容值为所述金属结构件对地的实时电容值与所述金属结构件对地的固有电容值的差值；
获取第二电容值，所述第二电容值为所述金属结构件与所述电容传感器 之间的电容值；
基于所述第一电容值与所述第二电容值确定所述实时差值。
关于第二方面各可能设计的有益效果可参见上述第一方面的记载，此处不再赘述。
本申请第三方面提供一种存储介质，所述存储介质中存储有指令，当其在计算机上运行时，使得计算机执行上述第二方面以及第二方面各可能设计所述的方法。
本申请实施例提供的可穿戴设备、佩戴检测方法及存储介质，其中，该可穿戴设备包括设备壳体、设置在该设备壳体内部的电容传感器、处理模块和金属结构件，该金属结构件与该电容传感器贴合，且该金属结构件可以增大电容传感器的静电感应区域，这样处理模块获取该电容传感器对地的实时电容值和固有电容值，并确定出该实时电容值与该固有电容值的实时差值，以及在该实时差值超过预设阈值时，确定该可穿戴设备处于已佩戴状态。该技术方案，在不改变可穿戴设备结构的情况下，提高了佩戴检测性能，解决了现有检测方案存在的结构复杂，量产难度和成本高的问题。
附图说明
图1为本申请实施例提供的可穿戴设备实施例一的爆炸示意图；
图2为电容传感器检测人体靠近的原理示意图；
图3为金属结构件的接近感应原理示意图；
图4A和图4B为差分电容传感器与金属结构件的贴合示意图；
图5为本实施例提供的可穿戴设备的爆炸示意图；
图6为半入耳式耳机的爆炸示意图；
图7为入耳式耳机的爆炸示意图；
图8为本申请实施例提供的佩戴检测方法实施例一的流程示意图；
图9为本申请实施例提供的佩戴检测方法实施例二的流程示意图。
具体实施方式
为使本申请实施例的目的、技术方案和优点更加清楚，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清楚、完整地描述， 显然，所描述的实施例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作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。
除非另有定义，本文所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同。本文中在本申请的说明书中所使用的术语只是为了描述具体的实施例的目的，不是旨在于限制本申请。本文所使用的术语“和/或”包括一个或多个相关的所列项目的任意的和所有的组合。本文中的术语“第一”、“第二”等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序，应该理解这样使用的术语在适当情况下可以互换，以便描述本申请的实施例。此外，术语“包括”和“具有”以及他们的任何变形，意图在于覆盖不排他的包含，例如，包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元，而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。
本申请实施例提供的可穿戴设备、佩戴检测方法及存储介质，其中，该可穿戴设备可以是例如，智能手环、智能手表和智能耳机、智能眼镜等的设备。为了提高可穿戴设备的电池续航能力，可穿戴设备需要具备佩戴状态检测功能，从而可以根据该佩戴状态的检测结果控制或优化可穿戴设备的一些功能，比如，根据手环的佩戴状态可以避免将静止误判为睡眠等。
示例性的，下面结合可穿戴设备为智能耳机对本申请实施例的应用场景进行解释说明。
智能耳机尤其是蓝牙耳机因其具备小巧便携、操作方便、使用场景丰富等优点，应用的越来越广泛。
通常情况下，智能耳机采用蓝牙、无线模块，减少了电线的牵绊，用户可以以更舒适的方式打电话，听音乐等等，但由于耳机结构的特点，内部空间有限，为充分利用内部空间则必须严格控制内部各模块尺寸及安装位置，这导致蓝牙耳机存在可扩展性差、安装难度大、续航较短等缺点，因而，大多数的智能耳机均具有佩戴检测功能。
当未检测到耳机佩戴(耳机入耳)时，耳机进入睡眠模式以降低功耗。同时，当检测到耳机佩戴时，耳机进入工作状态可以提升用户体验，如在听 音乐场景，当耳机检测到被用户佩戴时，与该耳机连接的终端设备可以自动播放音乐，当检测到被摘下时则自动停止，简化用户操作步骤。
根据背景技术中记载可知，目前佩戴检测方案主要包括光学检测方案、电容检测方案。但是上述检测方案存在结构复杂，量产难度和成本高的问题。
本申请实施例提供的可穿戴设备、佩戴检测方法及存储介质，通过将可穿戴设备内的金属结构件与电容传感器贴合，在不改变可穿戴设备结构的情况下，增大了电容传感器的静电感应区域，提高了佩戴检测性能，解决了现有检测方案存在的结构复杂，量产难度和成本高的问题。
下面结合附图，对本申请的一些实施方式作详细说明。在不冲突的情况下，下述的实施例及实施例中的特征可以相互组合。
示例性的，图1为本申请实施例提供的可穿戴设备实施例一的爆炸示意图。如图1所示，该可穿戴设备可以包括设备壳体11、设置在该设备壳体11内部的电容传感器12、处理模块13和金属结构件14，该金属结构件14与该电容传感器12贴合。
其中，在本实施例中，该金属结构件14用于增大该电容传感器12的静电感应区域，该处理模块13用于获取该电容传感器12对地的实时电容值和固有电容值，确定出该实时电容值与该固有电容值的实时差值，以及在该实时差值超过预设阈值时，确定该可穿戴设备处于已佩戴状态。
在本实施例中，该金属结构件14是设备壳体11内部的元件，例如，发声单元的金属外壳或磁铁、金属支架等，因而，该金属结构件14具有静电感应特性。因而，在本申请实施例中，利用该金属结构件14在设备壳体11内的静电感应特性，可以该金属结构件14与电容传感器12贴合，以将金属结构件14等效为电容传感器12的附属部分来共同检测人体是否佩戴该可穿戴设备。
具体的，由于人体靠近或触摸电容传感器12会使电容传感器12对地的电容(电容传感器12的自容)增大，通过检测电容传感器12对地的实时电容值，确定出实时电容值和固有电容值的实时差值，利用该实时差值与预设阈值的大小关系，确定该可穿戴设备是否处于已佩戴状态。
示例性的，在本实施例中，处理模块13首先获取电容传感器12对地的实时电容值和电容传感器12对地的固有电容值，确定出该实时电容值与固有 电容值的实时差值，然后判断该实时差值是否超过预设阈值，当该实时差值大于预设阈值时，则确定该可穿戴设备为已佩戴状态；当该实时差值小于或等于预设阈值时确定该可穿戴设备为未佩戴状态，即脱落状态。
示例性的，处理模块13可以包括电容检测电路，在实施例中，可以利用该电容检测电路检测电容传感器12对地之间的实时电容值和固有电容值。
在实际应用中，若电容传感器12安装在可穿戴设备中的人体非敏感区域，则在人体靠近或触摸电容传感器12时，电容传感器12对地的电容增幅较小，因而，为了在人体靠近或触摸电容传感器12时，使电容传感器12对地的电容增幅变大，可以将电容传感器12安装在该可穿戴设备佩戴侧的人体敏感区域内。
可选的，本实施例可以以可穿戴设备为耳机进行说明。图1示例性的给出了耳机的一个耳塞。该耳塞可以至少包括上述的设备壳体11、设置在该设备壳体11内部的电容传感器12、处理模块13和金属结构件14，在实际应用中，其还可以包括其他的器件，此处不再赘述。
图1所述的实施例以可穿戴设备为耳机模型进行说明，但本领域的技术人员应当明了的是，此耳机模型仅为示例性说明，在实际使用中，本领域的技术人员可以参照本申请实施例的方案，选择其他的模型实施本技术方案。
可选的，图1以一只耳塞为例进行说明，在实际使用中，本领域的技术人员可以参照本申请实施例的方案，选择一副耳机实施本方案；需要注意的是，多个耳塞的佩戴检测或者触控操作可以互相独立，也可以不相互独立，本实施例对此不做限制。
示例性的，对于耳机来说，耳机中存在发声单元，且发声单元的金属外壳通常与其他设备没有电连接关系，尤其在安装电容传感器12时需要绕过发声单元、并尽可能靠近该可穿戴设备的人体敏感区域，以避免发声单元的金属外壳对电容传感器12造成干扰，但是这样可能会影响耳机音质、增加结构设计及安装复杂度。
本实施例中，利用耳机的发声单元，将电容传感器12安装到发声单元的第一侧，该第一侧为远离佩戴侧的一侧。
示例性的，该发声单元包括金属外壳和/或磁铁，因而，该电容传感器安装在可以金属外壳和/或磁铁的第一侧，将该金属外壳和/或磁铁作为电容传感 器12与人体的中间介质，以增大静电感应区域，进而提升信号量。
可选的，在本实施例中，当上述可穿戴设备为耳机时，可以将利用金属结构件14与电容传感器12实现佩戴检测的方案应用于不同形态的耳机，包括但不限于入耳式、半入耳式、耳塞式、头戴式等，被利用的金属结构件14包括但也不局限于发声单元的金属外壳和/或磁铁、耳机内用于固定其他元件的金属支架等，电容传感器12与金属结构件14的结合方式也可以多种多样，此处不再说明。可选的，发声单元的磁铁一般指的是永磁铁。
在本实施例中，在人体靠近或触摸该电容传感器12时，利用处理模块13的电容检测功能可以检测该电容传感器12对地的实时电容值和固有电容值，进而基于该实时电容值和固有电容值的实时差值，实现可穿戴设备的佩戴和摘取检测功能，在基本不改动可穿戴设备的内部结构、不修改可穿戴设备的外壳结构，也不额外占用可穿戴设备内部空间的前提下，提高了可穿戴设备的佩戴检测性能。因而，本实施例的可穿戴设备具有对电容传感器12部署位置不敏感、成本低、应用灵活、安装简单、量产难度低的特点。
本申请实施例提供的可穿戴设备包括设备壳体、设置在该设备壳体内部的电容传感器、处理模块和金属结构件，该金属结构件与该电容传感器贴合，且该金属结构件可以增大电容传感器的静电感应区域，这样处理模块获取该电容传感器对地的实时电容值和固有电容值，并确定出该实时电容值与该固有电容值的实时差值，以及在该实时差值超过预设阈值时，确定该可穿戴设备处于已佩戴状态。该技术方案，在不改变可穿戴设备结构的情况下，提高了佩戴检测性能，解决了现有检测方案存在的结构复杂，量产难度和成本高的问题。
示例性的，图2为电容传感器检测人体靠近的原理示意图。图3为金属结构件的接近感应原理示意图。如图2和图3所示，该电容传感器12包括：传感器上极板21、传感器中间介质22和传感器下极板23。
具体的，在本实施例中，如图2所示，传感器上极板21、传感器中间介质22和传感器下极板23成电容传感器12，等效于平板电容结构。在电容传感器12设计好后，传感器上极板21和传感器下极板23之间的电容可以用电容C B表示。该传感器上极板21用于感受人体是否靠近，当人体佩戴该可穿戴设备时，传感器上极板21发出的电场线24受人体影响，传感器上极板21 对地的电容值发生变化，使得传感器上极板21对地的实时电容值和固有电容值之间出现存在一个实时差值，该实时差值对应的电容可以用C 10表示。
其中，该实时差值对应的电容C 10可以根据电容C BK对应的电容值与电容C BG对应的电容值确定，具体的，实时差值对应的电容C 10可以是电容C BK与电容C BG串联后的电容值，该电容C BK可以等效为人体与传感器上极板21之间的电容，该电容C BG可以等效为人体对地的电容。
可选的，在本实施例中，可以利用金属结构件14的静电感应效应将该金属结构件14作为电容传感器12的一部分来扩大人体接近或接触的敏感范围，其基本原理如图3所示，例如，在传感器上极板21的上面贴合有金属结构件14，当金属结构件14与传感器上极板21贴合后，金属结构件14与电容传感器12之间电容可以等效为第二电容C 2，第二电容C 2对应的电容值称为第二电容值。该第二电容值与传感器上极板21的面积大小、传感器上极板21与金属结构件14的贴合程度以及贴合材料的介电常数相关。
具体的，利用供电电源V TX给电容传感器12充电，传感器上极板21带正电荷，传感器下极板23带负电荷。由于金属结构件14具有大量自由电子，并且根据电荷同行相斥、异性相吸的特性，则金属结构件14的底面会感应出负电荷，金属结构件14的顶面会感应出正电荷。这些正电荷发出电场线24可以感应人体的靠近，相当于金属结构件14作为电容传感器12与人体之间的中间介质，相比于电磁场在空气中传播，电场在金属结构件14中传播的衰减大大减小，并且引导电场线24向外界扩散，扩大了静电感应区域。
示例性的，如图3所示，当人体靠近该可穿戴设备时，电容传感器12对地的实时电容值与固有电容值之间具有一实时差值，该实时差值对应的电容可以用电容C 11表示。其中，该实时差值可以是根据第一电容值与第二电容值确定的，其中，该第一电容值为金属结构件14对地的实时电容值与金属结构件14对地的固有电容值的差值，该第二电容值为金属结构件14与电容传感器12之间的电容值。
示例性的，该第一电容值对应的电容可以用电容C 1表示，该第二电容值对应的电容可以用电容C 2表示。这时，该实时差值可以解释为第一电容值对应的电容C 1与第二电容值对应的电容C 2串联后的值，即
Figure PCTCN2019079578-appb-000001
在实际应用中，由于第二电容值远大于第一电容值，所以，该实时差值约等于第二电容 值。
示例性的，在本实施例中，该金属结构件14可以为片状，且该金属结构件14中与该电容传感器12贴合的表面的面积大于电容传感器12中与该金属结构件14贴合的表面的面积，扩大了可穿戴设备的人体敏感区域，因而，在本实施例中，在金属结构件14与电容传感器12贴合的场景下，人体在靠近或佩戴该可穿戴设备时，电容传感器12对地的实时电容值与电容传感器12对地的固有电容值的实时差值变大，提高了可穿戴设备的佩戴检测性能。
在本实施例中，电容传感器12与悬浮金属的贴合方式可以多种多样，在实际应用中，为了消除电容传感器12受到的温漂影响，电容传感器12可以基于差分驱动原理实现，即电容传感器12为差分电容传感器。
示例性的，在本申请实施例的一种可能实现方式中，图4A和图4B为差分电容传感器与金属结构件的贴合示意图。如图4A和图4B所示，该差分电容传感器120包括：传感器差分正极板210、传感器中间介质22和传感器差分负极板230。
示例性的，图4A和图4B示例性的给出了两种贴合方式。图4A示出的是传感器差分正极板210与金属结构件14贴合的结构示意图，该图4B示出的是传感器差分负极板230与金属结构件14贴合的结构示意图，不管是利用传感器差分正极板210与金属结构件14贴合，还是利用传感器差分负极板230与金属结构件14贴合，两种贴合方式均可以在人体靠近或佩戴该可穿戴设备时使得电容传感器12对地的电容增量变大，也即，使得电容传感器12对应的实时电容值变化幅度增大，提高了佩戴检测性能。
在图4A和图4B中，差分电容传感器120有两个供电电源V TX’和V TX，其中，供电电源V TX与传感器差分正极板210连接，供电电源V TX’与传感器差分负极板230连接。
本实施例中，利用差分电容传感器120与金属结构件14贴合，可以消除温漂的影响，提高佩戴检测性能。
示例性的，在本实施例的一种可能设计中，该可穿戴设备还可以包括：设置在该设备壳体11内部的金属支架。
其中，该金属结构件14为金属支架。
在本实施例中，当可穿戴设备的设备壳体11内部具有金属支架时，例如， 用于起支撑作用的支架，该金属支架满足与其他电气设备无任何电气连接，这样可以将该金属支架与电容传感器12贴合，以增大该可穿戴设备的人体敏感区域，使得人体靠近或佩戴该可穿戴设备时可以提升电容检测效果。
例如，对于耳机、智能手表、虚拟现实(virtual reality，VR)眼镜等可穿戴设备，设备内部满足无任何电气连接的金属件可以包括金属支架，这样将该金属支架与电容传感器12贴合，增大人体的静电感应区域，以提高可穿戴设备的佩戴性能。
值得说明的是，电容传感器12与金属结构件14的贴合方式通常由金属结构件的形态确定，例如，可以分为传感器上极板21与金属结构件14贴合、传感器下极板23与金属结构件14贴合方式。本申请实施例并不对电容传感器12与金属结构件14的结合方式进行限定。
示例性的，在本实施例的另一种可能设计中，该可穿戴设备包括耳机。下述以耳机中的金属结构件14进行解释说明。
图5为本实施例提供的可穿戴设备的爆炸示意图。如图5所示，该可穿戴设备还包括：设置在该设备壳体11内部的发声单元15。
上述金属结构件14为发声单元15的金属外壳150和/或磁铁。
在本实施例中，光学或传统电容方案的佩戴检测一般要将电容传感器12安装在前嘴管或音腔部分，需要牺牲音质且安装难度大。针对此，如图5所示，本申请实施例采用上述方案，例如，在可穿戴设备还包括设置在该设备壳体11内部的发声单元15时，利用发声单元15的金属外壳150作为上述金属结构件14与电容传感器12进行贴合处理。
示例性的，在实际应用中，某些可穿戴设备的发声单元不存在金属外壳，其具有的磁铁是直接裸露在外面的，因而，在这种场景下，上述金属结构件14可以直接为发声单元15的磁铁。
值得说明的是，当可穿戴设备的发声单元既包括金属外壳，又包括磁铁时，该金属结构件14可以为金属外壳和磁铁。本实施例并不限定金属结构件14的具体表现形式，其可以根据实际情况确定。
可选的，在本实施例中，参照图5所示，设备壳体11内部还具有设备主板16，该设备主板16上部署有各种电路，以实现该可穿戴设备的功能。例如，上述处理模块13可以部署在该设备主板16上。
可选的，如图5所示，该可穿戴设备还包括硅胶套17，该硅胶套17可以设置在设备外壳11的外部，一方面用于保护设备壳体11，另一方面可以提高用户佩戴时的舒适度。
在本实施例的一种可能实现方式中，该发声单元15的类型为动圈类型，则上述金属结构件14与电容传感器12贴合可以通过如下方式实现：
该电容传感器12与金属外壳的一侧和/或磁铁的一侧贴合。
具体的，当电容传感器12包括：传感器上极板21、传感器中间介质22和传感器下极板23时，该电容传感器12与金属外壳的一侧和/或磁铁的一侧贴合又可以通过如下方式实现：该传感器上极板21与金属外壳的第一侧和/或磁铁的第一侧贴合，该第一侧为远离可穿戴设备的佩戴侧的一侧。
示例性的，图6为半入耳式耳机的爆炸示意图。参照图6所示，在耳机的设备壳体11内，发声单元15通常为动圈类型，其外壳一般是与其他电气设备无任何电气连接的金属件，这样可以将电容传感器12贴合在耳机发声单元15的金属外壳150的第一侧(即远离可穿戴设备的佩戴侧的一侧)，利用金属外壳150的静电感应特性，扩大电容检测的敏感区域，实现非接触式佩戴检测。这样，在不改动可穿戴设备结构的基础上增大了静电感应面积、提高了信号量，而且提升了耳机防汗液效果、降低误脱率。
在本实施例的另一种可能实现方式中，该金属外壳150的部分壳体包裹在电容传感器12的内侧。
可选的，该金属外壳150的部分壳体与传感器下极板23贴合连接。
示例性的，图7为入耳式耳机的爆炸示意图。参照图7所示，对于入耳式耳机，发声单元15即扬声器安装在前嘴部分，这时电容传感器12可以包裹发声单元15的部分外壳，使得该部分壳体与传感器下极板23贴合连接，在人体靠近或佩戴该可穿戴设备时，同样可以增大静电感应区域，而且该方案具有安装简单、量产成本低等优点。
可选的，如图7所示，在本实施例中，在该耳机的前嘴位置还设置有防尘网18，该防尘网18可以在一定程度上避免灰尘进入耳机壳体内部。
可选的，对于可穿戴设备，设备内部满足无任何电气连接的金属件一般都是发声单元的金属外壳、发声单元的磁铁，有个别种类的可穿戴设备可能有金属支架，电容传感器12与金属结构件14的结合方式通常由金属结构件 14的形态确定。总的来说，电容传感器12与金属结构件14贴合可以分为传感器上极板21与金属结构件14贴合、传感器下极板23与金属结构件14贴合等方式。本申请实施例并不对电容传感器12与金属结构件14的结合方式进行限定。
综上所述，对于耳机等可穿戴设备，本实施例针对现有佩戴检测方法需要在耳机外壳(与人体接触的敏感区域)上开孔或挖槽以使电容传感器获取足够的信号会牺牲耳机原有音质、致使结构复杂度高、量产成本高的问题，利用设置在设备壳体内的金属结构件与电容传感器贴合，扩大了静电感应区域，提高了佩戴检测效率，解决了上述问题，此外，本实施例的方案应用设计灵活，可以应用到包括但不局限于耳机的任何可穿戴设备上，应用范围广。
下述为本申请方法实施例，可以适用于本申请的可穿戴设备。对于本申请方法实施例中未披露的细节，请参照本申请中可穿戴设备的实施例。
图8为本申请实施例提供的佩戴检测方法实施例一的流程示意图。该方法应用于图1至图7所示的可穿戴设备，该可穿戴设备可以包括：设备壳体、设置在该设备壳体内部的电容传感器、处理模块和金属结构件，该金属结构件与电容传感器贴合，该金属结构件用于增大该电容传感器的静电感应区域。
示例性的，如图8所示，该佩戴检测方法可以包括如下步骤：
步骤81：获取电容传感器对地的实时电容值和固有电容值。
可选的，可穿戴设备可以通过处理模块实时检测电容传感器对地的电容值，通常状态下，在人体未靠近时，处理模块检测到的电容传感器对地得电容接近不变，可以认为是电容传感器对地的固有电容值。
在人体靠近该可穿戴设备时，可穿戴设备通过处理模块检测到电容传感器对地的电容发生了较大变化，并获取该电容传感器对地的实时电容值。
关于该步骤的具体实现原理可以参照上述可穿戴设备所示实施例的记载，此处不再赘述。
步骤82：确定该实时电容值与该固有电容值的实时差值。
示例性的，可穿戴设备的处理模块还可以根据获取到的电容传感器对地的实时电容值和固有电容值，计算该实时电容值与该固有电容值的实时差值。关于该方案的具体实现原理可以参见下述图9所示实施例中的记载，此处不再赘述。
步骤83：判断该实时差值是否大于预设阈值；若是，执行步骤84；若否，执行步骤85。
本实施例中，为了使得可穿戴设备能够自动转变工作模式，可穿戴设备内部可以设置有一预设阈值，该预设阈值用于指示可穿戴设备的已佩戴状态与未佩戴状态时的临界值。可穿戴设备可以将确定的实时差值与预设阈值进行比较，并根据比较结果确定可穿戴设备所处的状态以及可穿戴设备的工作模式。
步骤84：确定该可穿戴设备处于已佩戴状态，并控制该可穿戴设备进入工作状态。
作为一种示例，当可穿戴设备确定出上述实时电容值与上述固有电容值的实时差值大于预设阈值时，认为该可穿戴设备处于已佩戴状态。进一步的，为了提高用户体验，可穿戴设备可以由睡眠状态自动进入工作状态。
步骤85：确定该可穿戴设备处于未佩戴状态，并维持该可穿戴设备处于睡眠模式。
作为另一种示例，若可穿戴设备确定出上述实时电容值与上述固有电容值的实时差值小于或等于预设阈值，认为该可穿戴设备处于未佩戴状态。为了降低该可穿戴设备的功耗，维持该可穿戴设备处于睡眠模式，进而提高续航性能。
本申请实施例提供的佩戴检测方法，通过获取电容传感器对地的实时电容值和固有电容值，确定该实时电容值与固有电容值的实时差值，进而在实时差值大于预设阈值时，确定该可穿戴设备处于已佩戴状态，并控制该可穿戴设备进入工作状态，以及在可穿戴设备确定出上述实时电容值与上述固有电容值的实时差值小于或等于预设阈值时，确定该可穿戴设备处于未佩戴状态，并维持该可穿戴设备处于睡眠模式。该技术方案可以提高可穿戴设备的佩戴检测性能，解决了现有检测方案存在的结构复杂，量产难度和成本高的问题。
示例性的，在上述实施例的基础上，图9为本申请实施例提供的佩戴检测方法实施例二的流程示意图。在本实施例中，如图9所示，上述步骤82可以通过如下步骤实现：
步骤91：获取第一电容值，该第一电容值为该金属结构件对地的实时电 容值与该金属结构件对地的固有电容值的差值。
在本实施例中，对于确定的可穿戴设备，该金属结构件对地具有一固有电容值，当当人体逐渐靠近该可穿戴设备时，该金属结构件对地的实时电容值逐渐增大，确定出金属结构件对地的实时电容值与金属结构件对地的固有电容值的差值，也即，第一电容值。
步骤92：获取第二电容值，该第二电容值为金属结构件与电容传感器之间的电容值。
在本实施例中，鉴于金属结构件的静电感应特性，当金属结构件与电容传感器贴合时，该金属结构件与电容传感器之间具有一个电容值，本实施例中，称其为第二电容值。通过处理模块可以获取到该第二电容值的大小。
步骤93：基于该第一电容值与该第二电容值确定该实时差值。
示例性的，本实施例中将金属结构件作为电容传感器的附属部分来感应人体靠近和佩戴，因而，该实时差值可以解释为第一电容值对应的电容与第二电容值对应的电容串联后的值。
关于该步骤的具体实现原理可以参见上述图2和图3所示实施例中的记载，此处不再赘述。
本申请实施例提供的佩戴检测方法，可穿戴设备获取第一电容值，该第一电容值为金属结构件对地的实时电容值与金属结构件对地的固有电容值的差值，获取第二电容值，该第二电容值为金属结构件与电容传感器之间的电容值，基于该第一电容值与该第二电容值确定上述实时差值。该技术方案可以准确及时确定出电容传感器对地的实时电容变化量，为后续确定可穿戴设备的佩戴状态提供了实现条件。
示例性的，在上述任一实施例中，电容传感器为差分电容传感器。
关于本申请实施例提供的佩戴检测方法中未详尽的描述，可以参照上述图1至图7所示实施例中的记载，在此不再赘述。
应注意，本申请上述方法实施例可以应用于处理器中，或者由处理器实现。处理器可能是一种集成电路芯片，具有信号的处理能力。在实现过程中，上述方法实施例的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器可以是通用处理器、数字信号处理器(digital signal processor，DSP)、专用集成电路(application specific integrated circuit， ASIC)、现成可编程门阵列(field programmable gate array，FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。可以实现或者执行本申请实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本申请实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成，或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器，处理器读取存储器中的信息，结合其硬件完成上述方法的步骤。
可以理解，本申请实施例中的存储器可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。其中，非易失性存储器可以是只读存储器(read-only memory，ROM)、可编程只读存储器(programmable rom，PROM)、可擦除可编程只读存储器(erasable PROM，EPROM)、电可擦除可编程只读存储器(electrically EPROM，EEPROM)或闪存。易失性存储器可以是随机存取存储器(random access memory，RAM)，其用作外部高速缓存。通过示例性但不是限制性说明，许多形式的RAM可用，例如静态随机存取存储器(static RAM，SRAM)、动态随机存取存储器(dynamic RAM，DRAM)、同步动态随机存取存储器(synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM，DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(synchlink DRAM，SLDRAM)和直接内存总线随机存取存储器(direct rambus RAM，DR RAM)。应注意，本文描述的系统和方法的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
本申请还提供一种存储介质，所述存储介质中存储有指令，当其在计算机上运行时，使得计算机实现上述的佩戴检测方法，其内容和效果可参考方法实施例部分，对此不再说明。
本申请中，“至少一个”是指一个或者多个，“多个”是指两个或两个以上。“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B的情况，其中A，B可以是单数或者复数。字符“/”一般表示前后关联对象是一 种“或”的关系；在公式中，字符“/”，表示前后关联对象是一种“相除”的关系。
可以理解的是，在本申请的实施例中涉及的各种数字编号仅为描述方便进行的区分，并不用来限制本申请的实施例的范围。
可以理解的是，在本申请的实施例中，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本申请的实施例的实施过程构成任何限定。
最后应说明的是：以上各实施例仅用以说明本申请的技术方案，而非对其限制；尽管参照前述各实施例对本申请进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例技术方案的范围。

Claims (14)

  1. 一种可穿戴设备，其特征在于，包括：设备壳体、设置在所述设备壳体内部的电容传感器、处理模块和金属结构件，所述金属结构件与所述电容传感器贴合；
    所述金属结构件用于增大所述电容传感器的静电感应区域，所述处理模块用于获取所述电容传感器对地的实时电容值和固有电容值，确定出所述实时电容值与所述固有电容值的实时差值，以及在所述实时差值大于预设阈值时，确定所述可穿戴设备处于已佩戴状态。
  2. 根据权利要求1所述的可穿戴设备，其特征在于，所述实时差值是根据第一电容值与第二电容值确定的；
    所述第一电容值为所述金属结构件对地的实时电容值与所述金属结构件对地的固有电容值的差值；
    所述第二电容值为所述金属结构件与所述电容传感器之间的电容值。
  3. 根据权利要求1或2所述的可穿戴设备，其特征在于，所述电容传感器为差分电容传感器。
  4. 根据权利要求1-3任一项所述的可穿戴设备，其特征在于，所述可穿戴设备还包括：设置在所述设备壳体内部的金属支架；
    所述金属结构件为所述金属支架。
  5. 根据权利要求1-4任一项所述的可穿戴设备，其特征在于，所述可穿戴设备包括：耳机。
  6. 根据权利要求5所述的可穿戴设备，其特征在于，所述可穿戴设备还包括：设置在所述设备壳体内部的发声单元；
    所述金属结构件为所述发声单元的金属外壳和/或磁铁。
  7. 根据权利要求6所述的可穿戴设备，其特征在于，所述发声单元的类型为动圈类型，所述金属结构件与所述电容传感器贴合包括：
    所述电容传感器与所述金属外壳的一侧和/或所述磁铁的一侧贴合。
  8. 根据权利要求7所述的可穿戴设备，其特征在于，所述电容传感器包括：传感器上极板、传感器中间介质和传感器下极板；
    所述电容传感器与所述金属外壳的一侧和/或所述磁铁的一侧贴合，包括：
    所述传感器上极板与所述金属外壳的第一侧和/或所述磁铁的第一侧贴合，所述第一侧为远离所述可穿戴设备的佩戴侧的一侧。
  9. 根据权利要求6所述的可穿戴设备，其特征在于，所述金属外壳的部分壳体被包裹在所述电容传感器的内侧。
  10. 根据权利要求9所述的可穿戴设备，其特征在于，所述电容传感器包括：传感器上极板、传感器中间介质和传感器下极板；
    所述金属结构件与所述电容传感器贴合包括：
    所述金属外壳的所述部分壳体与所述传感器下极板贴合。
  11. 根据权利要求1-10任一项所述的可穿戴设备，其特征在于，所述金属结构件为片状，所述金属结构件中与所述电容传感器贴合的表面的面积大于所述电容传感器中与所述金属结构件贴合的表面的面积。
  12. 一种佩戴检测方法，其特征在于，所述方法应用于可穿戴设备，所述可穿戴设备包括：设备壳体、设置在所述设备壳体内部的电容传感器、处理模块和金属结构件，所述金属结构件与所述电容传感器贴合，所述金属结构件用于增大所述电容传感器的静电感应区域，所述方法包括：
    获取所述电容传感器对地的实时电容值和固有电容值；
    确定所述实时电容值与所述固有电容值的实时差值；
    在所述实时差值大于预设阈值时，确定所述可穿戴设备处于已佩戴状态。
  13. 根据权利要求12所述的方法，其特征在于，所述确定所述实时电容值与所述固有电容值的实时差值，包括：
    获取第一电容值，所述第一电容值为所述金属结构件对地的实时电容值与所述金属结构件对地的固有电容值的差值；
    获取第二电容值，所述第二电容值为所述金属结构件与所述电容传感器之间的电容值；
    基于所述第一电容值与所述第二电容值确定所述实时差值。
  14. 一种存储介质，其特征在于，所述存储介质中存储有指令，当其在计算机上运行时，使得计算机执行如权利要求12或13所述的佩戴检测方法。
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