Wearable device and control method thereof

Abstract

The invention discloses wearable equipment and a control method thereof, and belongs to the technical field of electronic equipment. The wearable device comprises a dial plate, the dial plate comprises a main body and a bottom shell, the bottom shell is arranged on the side, facing the skin of a user, of the main body, and the bottom shell has a first state and a second state; wherein under the condition of the first state, the bottom shell is in contact with the skin of a user; under the condition of the second state, the bottom shell is separated from the skin of the user; and the driving piece is arranged in the main body and connected with the bottom shell, and the driving piece is used for driving the bottom shell to move relative to the main body so as to be switched between a first state and a second state.

Description

Technical Field

[0001] The present application belongs to the technical field of electronic equipment, and specifically relates to a wearable device and a control method thereof. Background Art

[0002] In related technologies, wearable devices such as smart watches have functions such as heart rate detection, blood oxygen detection and motion detection. By wearing smart watches, users can record their exercise trajectories and detect various physiological parameters before and after exercise in real time.

[0003] During exercise, the human body has its own temperature regulation mechanism, and it will sweat to dissipate heat during exercise. However, when wearing a smart watch, the bottom shell of the dial will fit the user's skin, and the sweat at the contact point between the user's wrist skin and the dial will be difficult to evaporate naturally, so it will cause sweat to accumulate and heat to be difficult to dissipate. This not only brings discomfort to the user, but also keeps the skin in a hot and humid state for a long time, which is also easy to cause allergies or inflammation, seriously affecting the wearing experience of the smart watch when the user is exercising. Summary of the invention

[0004] The present application aims to provide a wearable device and a control method thereof, which can improve the wearing experience of the wearable device during exercise or hot weather.

[0005] In a first aspect, an embodiment of the present application provides a wearable device, the wearable device comprising:

[0006] The dial comprises a main body and a bottom shell, wherein the bottom shell is arranged on a side of the main body facing the user's skin, and the bottom shell has a first state and a second state; wherein in the first state, the bottom shell is in contact with the user's skin; and in the second state, the bottom shell is separated from the user's skin;

[0007] A driving member is disposed in the main body and connected to the bottom shell. The driving member is used to drive the bottom shell to move relative to the main body to switch between the first state and the second state.

[0008] In a second aspect, an embodiment of the present application provides a control method for a wearable device, wherein the wearable device includes a dial and a driving member, the dial includes a main body and a bottom shell, and the bottom shell can move relative to the main body; the control method includes:

[0009] Detect the amount of sweat a user has;

[0010] When the amount of sweat of the user is greater than or equal to a first sweat threshold, driving the bottom shell to move in a direction away from the user's skin, and detecting a distance value between the bottom shell and the user's skin;

[0011] When the distance value reaches a preset distance value, the bottom shell is driven to stop moving;

[0012] Among them, the preset distance value is positively correlated with the user's sweat volume.

[0013] In a third aspect, an embodiment of the present application proposes a readable storage medium, on which a program or instruction is stored, and when the program or instruction is executed by a processor, the steps of the control method of the second aspect are implemented.

[0014] In an embodiment of the present application, the bottom shell portion of the dial of the wearable device is designed to be movable so that it can move relative to the main body portion. At the same time, a driving member that can actively drive the bottom shell to move is provided in the main body. The driving member enables the bottom shell to switch between a first state in contact with the user's skin and a second state separated from the user's skin. When the user sweats profusely, a ventilation gap can be formed between the user's skin and the wearable device by separating the bottom shell from the user's skin, thereby helping the user to sweat and dissipate heat, avoiding skin problems caused by sweat accumulation, and improving the wearing experience of the wearable device during exercise or in hot weather.

[0015] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1 A schematic diagram showing the structure of a wearable device according to some embodiments of the present application is shown;

[0018] Figure 2 A schematic diagram showing the structure of a wearable device according to some embodiments of the present application is shown;

[0019] Figure 3 A schematic diagram showing the structure of a wearable device according to some embodiments of the present application is shown;

[0020] Figure 4 A schematic diagram showing the structure of a wearable device according to some embodiments of the present application is shown;

[0021] Figure 5 A schematic diagram showing the structure of a wearable device according to some embodiments of the present application is shown;

[0022] Figure 6 A schematic diagram showing the structure of a wearable device according to some embodiments of the present application is shown;

[0023] Figure 7 A schematic diagram showing the structure of a wearable device according to some embodiments of the present application is shown;

[0024] Fig. 8A A schematic diagram showing the operation of the magnetic member and the electromagnetic module in some embodiments of the present application is shown;

[0025] Figure 8B A schematic diagram showing the operation of the magnetic member and the electromagnetic module in some embodiments of the present application is shown;

[0026] Fig. 9 A schematic diagram showing the structure of a wearable device according to some embodiments of the present application is shown;

[0027] Fig.10 A schematic diagram showing the structure of a wearable device according to some embodiments of the present application is shown;

[0028] Fig.11 A schematic diagram showing the structure of a wearable device according to some embodiments of the present application is shown;

[0029] Fig.12 A schematic diagram showing the structure of a wearable device according to some embodiments of the present application is shown;

[0030] Fig.13 A flowchart of a control method for a wearable device according to some embodiments of the present application is shown.

[0031] Reference numerals:

[0032] 100 wearable device, 102 dial, 1022 main body, 1023 vent, 1024 bottom shell, 1025 sliding connection, 1026 magnetic part, 104 driving part, 1041 driving motor, 1042 transmission part, 1043 electromagnetic module, 1044 piezoelectric component, 1045 fan, 106 sweat sensor, 108 distance sensor, 110 elastic connection. DETAILED DESCRIPTION

[0033] The embodiments of the present application will be described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and should not be construed as limitations on the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.

[0034] The term "first" or "second" in the specification and claims of this application may include one or more of the features explicitly or implicitly. In the description of this application, unless otherwise specified, "plurality" means two or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally means that the objects connected before and after are in an "or" relationship.

[0035] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0036] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0037] Combine the following Figures 1 to 13 A wearable device and a control method thereof according to an embodiment of the present application are described.

[0038] In some embodiments of the present application, a wearable device is provided. Figure 1 , Figure 2 and Figure 3 A schematic diagram of the structure of a wearable device according to some embodiments of the present application is shown. Figure 1 , Figure 2 and Figure 3 As shown, the wearable device 100 includes:

[0039] The dial 102 includes a main body 1022 and a bottom shell 1024, wherein the bottom shell 1024 is disposed on the side of the main body 1022 facing the user's skin, and the bottom shell 1024 has a first state and a second state; wherein, in the first state, the bottom shell 1024 is in contact with the user's skin; and in the second state, the bottom shell 1024 is separated from the user's skin; a driving member 104, wherein the driving member 104 is disposed in the main body 1022 and connected to the bottom shell 1024, and the driving member 104 is used to drive the bottom shell 1024 to move relative to the main body 1022 to switch between the first state and the second state.

[0040] In the embodiment of the present application, the wearable device 100 includes, by way of example, but is not limited to, a smart watch, a smart bracelet, a smart wristband, and a smart armband, etc. The wearable device 100 includes a dial 102, which specifically refers to the device body of the wearable device 100. Taking the wearable device 100 as a smart watch as an example, the wearable device 100 includes a dial 102 and a strap, which may be a strap made of a flexible material or a strap formed by connecting multiple metal tracks.

[0041] The dial 102 specifically includes a main body 1022 and a bottom shell 1024, wherein the main body 1022 may be a ring-shaped body or a rectangular body. When the user wears the wearable device 100, the bottom shell 1024 can contact the user's skin, that is, the bottom shell 1024 is arranged on the side of the main body 1022 facing the user's skin. Exemplarily, an infrared non-destructive detection (Photoplethysmography, PPG) sensor is arranged on the bottom shell 1024, which can detect the user's heart rate, blood oxygen and other physiological data.

[0042] The bottom shell 1024 has a first state and a second state. In the first state, the bottom shell 1024 is in contact with the user's skin, and the sensor on the bottom shell 1024, such as the PPG sensor, fits the user's skin, so that the user's victory data can be detected. In the second state, the bottom shell 1024 is separated from the user's skin, and there can be a ventilation gap between the bottom shell 1024 and the user's skin.

[0043] Exemplarily, the bottom shell 1024 is movably connected to the main body 1022, and the main body 1022 is also provided with a driving member 104, which can drive the bottom shell 1024 to move in a direction away from the user's skin, or in a direction close to the user's skin, so that the bottom shell 1024 can switch between the first state and the second state. Exemplarily, when a PPG sensor is provided on the bottom shell 1024, the degree of fit between the PPG sensor and the skin will affect the detection accuracy of the sensor. When the user is not in a scene where a lot of sweating occurs, the driving member 104 drives the bottom shell 1024 to move in a direction close to the user's skin, so that the bottom shell 1024 is in the first state, at which time the bottom shell 1024, especially the PPG sensor on the bottom shell 1024, is fully fit with the user's skin, thereby improving the detection accuracy of the PPG sensor.

[0044] When a user sweating scene is detected, such as when the user is detected exercising for a long time, or the current temperature exceeds a threshold, the driving member 104 can be periodically controlled to drive the bottom shell 1024 to move in a direction away from the user's skin. After the bottom shell moves a certain distance in the direction away from the user's skin, the bottom shell 1024 is in a second state. At this time, the bottom shell 1024 is equivalent to being embedded in the main body 1022, so that a ventilation gap is generated between the bottom shell 1024 and the user's skin. This ventilation gap can effectively help the skin area that was previously in contact with the bottom shell 1024 to quickly sweat and dissipate heat.

[0045] The bottom shell 1024 of the dial 102 of the wearable device 100 of the present application is designed to be movable, so that it can move relative to the main body 1022. At the same time, a driving member 104 that can actively drive the bottom shell 1024 to move is provided in the main body 1022. The bottom shell 1024 is switched between a first state in contact with the user's skin and a second state separated from the user's skin through the driving member 104. When the user sweats profusely, a ventilation gap can be formed between the user's skin and the wearable device 100 by separating the bottom shell 1024 from the user's skin, thereby helping the user to sweat and dissipate heat, avoiding skin problems caused by sweat accumulation, and improving the wearing experience of the wearable device 100 during exercise or hot weather.

[0046] In some embodiments of the present application, the wearable device 100 further includes: an elastic connector 110 , and the bottom shell 1024 is connected to the main body 1022 via the elastic connector 110 .

[0047] In the embodiment of the present application, the bottom shell 1024 is connected to the main body 1022 through an elastic member. Exemplarily, the elastic member includes a flexible waterproof material and an elastic member. Exemplarily, the elastic member can be a spring. The flexible waterproof material at least covers the outer surface of the elastic member. When the user wears the wearable device 100, the flexible waterproof material contacts the user's skin, thereby reducing the pressure on the user's skin. Exemplarily, the flexible waterproof material is a skin-friendly material.

[0048] When the bottom shell 1024 is in the initial position, the bottom shell 1024 can fit the user's skin, and the elastic connector is in a released state, that is, no elastic potential energy is accumulated. When the driving member 104 drives the bottom shell 1024 to move, the elastic member is deformed and accumulates elastic potential energy, so when the driving member 104 stops applying force to the bottom shell 1024, the bottom shell 1024 can return to its original position under the elastic force of the elastic connector 110.

[0049] In some embodiments of the present application, in a first state, at least a portion of the bottom shell 1024 is located outside the main body 1022 ; in a second state, the bottom shell 1024 is located inside the main body 1022 .

[0050] In the embodiment of the present application, when in the first state, at least part of the bottom shell 1024 is located outside the main body 1022, so that the bottom shell 1024 can fit the user's skin, and the sensor set on the bottom shell 1024 can accurately collect the user's victory data. When in the second state, the bottom shell 1024 is retracted into the main body 1022, and there is a ventilation gap between the bottom shell 1024 and the user's skin, which can help the user to sweat and dissipate heat.

[0051] In some embodiments of the present application, Figure 4 and Figure 5 A schematic diagram of the structure of a wearable device 100 according to some embodiments of the present application is shown. Figure 3 , Figure 4 and Figure 5 As shown, the bottom shell 1024 includes a sliding connection member 1025, which is slidably connected to the main body 1022; the driving member 104 includes: a driving motor 1041, which is arranged on the main body 1022; a transmission member 1042, which is respectively connected to the output shaft of the driving motor 1041 and the sliding connection member 1025.

[0052] In the embodiment of the present application, a sliding connector 1025 is provided on the bottom shell 1024 and is slidably connected to the main body 1022. For example, the shape of the sliding connector 1025 matches the shape of the main body 1022. For example, the dial 102 is a circular dial, and the corresponding sliding connector 1025 is a circular sliding connector. For example, the number of the sliding connectors 1025 is 2, and the two sliding connectors 1025 are respectively located at the two ends of the bottom shell 1024.

[0053] The driving member 104 is specifically a driving motor 1041, which is disposed on the main body 1022. The driving shaft of the driving motor 1041 drives the sliding connection member 1025 to move through the transmission member 1042, so that the bottom shell 1024 moves relative to the main body 1022. Exemplarily, the transmission member 1042 is a crawler transmission member or a transmission belt.

[0054] Exemplarily, when the motor rotates in the forward direction, the transmission member 1042 drives the sliding connection member 1025 and the bottom shell 1024 to move in a direction away from the user's skin. When it is detected that the distance between the bottom shell 1024 and the user's skin reaches a preset distance value, the motor stops rotating, and the position of the bottom shell 1024 remains unchanged. When it is detected that the amount of sweat of the user is less than the second sweat threshold, the motor rotates in the reverse direction, and the transmission member 1042 drives the sliding connection member 1025 and the bottom shell 1024 to move in a direction close to the user's skin until they return to their original position.

[0055] In some embodiments of the present application, Figure 6 and Figure 7A schematic diagram of the structure of a wearable device according to some embodiments of the present application is shown. Figure 6 and Figure 7 As shown, a magnetic member 1026 is provided on the bottom shell 1024; the driving member 104 includes: an electromagnetic module 1043, and the electromagnetic module 1043 has a third state and a fourth state; wherein, in the third state, the electromagnetic module attracts the magnetic member 1026 to separate the bottom shell from the user's skin, and in the fourth state, the electromagnetic module 1043 repels the magnetic member 1026 to make the bottom shell contact with the user's skin.

[0056] In the embodiment of the present application, a magnetic member 1026 is provided on the bottom shell 1024, and illustratively, the magnetic member 1026 is a permanent magnet. The driving member 104 is an electromagnetic module 1043, and illustratively, the electromagnetic module 1043 is an electromagnetic coil or a current-carrying conductor. Based on the electromagnetic principle, when a current passes through a conductor, a magnetic field is generated near the conductor, and the direction of the magnetic field is associated with the direction of the current. Based on this principle, the electromagnetic module 1043 has a third state and a fourth state, and can generate a first magnetic field and a second magnetic field in opposite directions. When the electromagnetic module 1043 is in the third state, the electromagnetic module 1043 generates a first magnetic field, and the first magnetic field can attract the magnetic member 1026. At this time, the bottom shell 1024 moves in a direction away from the user's skin. When the electromagnetic module 1043 is in the fourth state, when the electromagnetic module 1043 generates a second magnetic field, the second magnetic field can repel the magnetic member 1026, and at this time, the bottom shell 1024 moves in a direction close to the user's skin.

[0057] For example, Fig. 8A and Figure 8B Schematic diagrams showing the operation of the magnetic member 1026 and the electromagnetic module 1043 in some embodiments of the present application are shown. Fig. 8A As shown, the electromagnetic module 1043 is a conductor that carries electricity. Fig. 8A The arrow in FIG. 1 shows the direction of a current in a current-carrying conductor, and at this time, the electromagnetic module 1043 generates an attractive force on the magnetic member 1026. Figure 8B As shown, Figure 8B The arrow in shows another direction of current in the current-carrying conductor, at which time the electromagnetic module 1043 generates a repulsive force on the magnetic member 1026 .

[0058] Exemplarily, the magnetic field strength is related to the current size. For example, when it is detected that the amount of sweat of the user is greater than the first sweat threshold, the electromagnetic module 1043 is energized in the forward direction to generate a first magnetic field, and the electromagnetic module 1043 attracts the magnetic member 1026. When it is detected that the distance between the bottom shell 1024 and the user's skin reaches a preset distance value, the current of the electromagnetic module 1043 decreases, and the attraction generated by the electromagnetic module 1043 is balanced with the elastic force of the elastic connector 110, and the bottom shell 1024 maintains the current position unchanged. When it continues to be detected that the amount of sweat of the user is less than the second sweat threshold, the electromagnetic module 1043 is energized in the reverse direction, and the electromagnetic module 1043 generates a second magnetic field, and the bottom shell 1024 is lowered and contacts the user's skin through electromagnetic repulsion.

[0059] The movement of the bottom shell 1024 is achieved by the magnetic member 1026 and the electromagnetic module 1043, and there is no need to set up movable parts such as motors, which can reduce working noise.

[0060] In some embodiments of the present application, Fig. 9 and Fig.10 A schematic diagram of the structure of a wearable device 100 according to some embodiments of the present application is shown. Fig. 9 and Fig.10 As shown, the driving member 104 includes: at least one piezoelectric component 1044, the piezoelectric component 1044 is arranged on the main body 1022, the piezoelectric component 1044 is used to generate vibration sound waves to the bottom shell 1024, and the vibration sound waves are used to drive the bottom shell to switch from the second state to the first state.

[0061] In the embodiment of the present application, the voltage component may be a piezoelectric sensor. The piezoelectric component 1044 can generate high-frequency vibrations under the action of voltage, thereby generating high-frequency vibration sound waves. Fig. 9 The arrow in the figure shows the transmission direction of the vibration sound wave. Based on the sound wave suspension, the sound wave is an electrostatic mechanical wave propagating in an elastic medium, which can carry energy and momentum. When the sound wave encounters an obstacle during propagation, it will produce physical effects such as reflection, refraction, and scattering on the surface of the object, and exchange momentum and energy with the object. This exchange is manifested macroscopically as the force of the sound wave on the object, which is called the acoustic radiation force. The acoustic radiation force is proportional to the acoustic energy density. By controlling the frequency of the sound wave, different forces on the object can be achieved, even if the object is suspended against gravity.

[0062] In the present application, the number of piezoelectric components 1044 is related to the weight and volume of the bottom shell 1024, as well as the maximum distance required to move, and the specific data can be obtained through testing. The bottom shell 1024 is connected to the main body 1022 through an elastic connector 110. When the elastic connector 110 is not subjected to force, the bottom shell 1024 is initially embedded in the main body 1022. At this time, when the user wears the wearable device 100, there is a natural gap between the bottom shell 1024 and the user's skin.

[0063] When the user's sweat volume does not reach the first sweat volume threshold, the piezoelectric component 1044 is driven to generate vibration sound waves, and the high-energy sound waves generate repulsion on the bottom shell 1024, and the bottom shell 1024 is separated from the watch body. At this time, the bottom shell 1024 is in the first state, ensuring that the PPG sensor fits the user's skin when the user wears it. When it is detected that the user's sweat volume is greater than the first sweat volume threshold, the frequency of the vibration sound waves is reduced to reduce the repulsion on the bottom shell 1024. The bottom shell 1024 rises under the elastic force of the elastic member and moves in a direction away from the user's skin. When the bottom shell 1024 rises to the second state, a gap is generated between the bottom shell 1024 and the user's skin.

[0064] It can be understood that by adjusting the frequency of the piezoelectric component 1044 used to generate vibration sound waves to the bottom shell 1024, the magnitude of the repulsive force applied to the bottom shell 1024 can be adjusted, thereby changing the balance point between the repulsive force of the bottom shell 1024 and the elastic force of the elastic connector 110, thereby achieving adjustment of the position of the bottom shell 1024.

[0065] In some embodiments of the present application, Fig.11 and Fig.12 A schematic diagram of the structure of a wearable device 100 according to some embodiments of the present application is shown. Fig.11 and Fig.12 As shown, the main body 1022 is provided with a vent 1023; the driving member 104 includes: a fan 1045, the fan 1045 is provided on the main body 1022, the fan 1045 is arranged opposite to the vent 1023, and the fan 1045 is used to generate airflow on the side of the bottom shell 1024 away from the user's skin.

[0066] In the embodiment of the present application, a sliding connector 1025 is provided on the bottom shell 1024 and is slidably connected to the main body 1022. For example, the shape of the sliding connector 1025 matches the shape of the main body 1022. For example, the dial 102 is a circular dial, and the corresponding sliding connector 1025 is a circular sliding connector. For example, the number of the sliding connectors 1025 is 2, and the two sliding connectors 1025 are respectively located at the two ends of the bottom shell 1024.

[0067] A vent 1023 is provided on one side of the main body 1022, and a fan 1045 is provided on the other side of the main body 1022. Fig.12 The arrow in the figure shows the direction of airflow. When the fan 1045 is working, the airflow is guided to flow along the upper surface of the bottom shell 1024 and blown out through the vent 1023. Based on the Bernoulli distance, under ideal conditions, at any cross section of the same flow tube, the sum of the kinetic energy, potential energy and pressure potential energy of the unit volume of fluid is a constant. Its classic inference is: under the condition of equal height, the greater the flow velocity, the smaller the pressure in the area; the smaller the flow velocity, the greater the pressure in the area.

[0068] When the fan 1045 is working, a high-speed airflow can be generated on the side of the upper surface of the bottom shell 1024 away from the user's skin. At this time, the gas flow rates on the upper and lower surfaces of the bottom shell 1024 are different, and a pressure difference is generated between the lower surface and the upper surface of the bottom shell 1024, causing the bottom shell 1024 to be lifted. By adjusting the fan speed, different pressure differences can be generated between the upper and lower surfaces of the bottom shell 1024, thereby obtaining different lifting forces and lifting speeds.

[0069] In some embodiments of the present application, the wearable device 100 also includes: a sweat sensor 106, which is disposed on the bottom shell 1024 and is used to detect the amount of sweat of the user; a driving member 104, which is also used to drive the bottom shell 1024 to move in a direction away from the user's skin when the amount of sweat of the user is greater than or equal to a first sweat threshold.

[0070] In the embodiment of the present application, a sweat sensor 106 is provided on the bottom shell 1024 of the wearable device 100, and the sweat sensor 106 can detect the amount of sweat of the wearer in real time. Exemplarily, the sweat sensor 106 is a flexible wearable ionic humidity sensor that can be used for skin moisture detection, and the sweat sensor 106 can detect the amount of sweat of the user in the part where the user's skin fits the bottom shell 1024. Exemplarily, the above-mentioned amount of sweat of the user can refer to the amount of sweat of the user, and can also refer to the concentration of sweat of the user.

[0071] Exemplarily, the sweat sensor 106 is a resistive or capacitive humidity sensor, and the amount of sweat is detected by the humidity sensor to obtain the amount of sweat of the user.

[0072] Exemplarily, the sweat sensor 106 can detect the concentration of sodium chloride (NaCl) in sweat, thereby obtaining the sweat concentration of the user.

[0073] Exemplarily, the sweat sensor 106 can be implemented by multiplexing a PPG sensor, and the amount of moisture and sweat in the corresponding area is detected by infrared light with a wavelength above 1000 nm to obtain the amount of sweat of the user.

[0074] When it is detected that the user's sweat volume is greater than a preset first sweat volume threshold, it means that the user is currently in a scene of heavy sweating. At this time, the control driving member 104 drives the bottom shell 1024 to move in a direction away from the user's skin, thereby creating a sufficient ventilation gap between the bottom shell 1024 and the user's skin to help the user sweat and dissipate heat, avoiding wearing discomfort caused by sweat accumulation.

[0075] In some embodiments of the present application, the wearable device 100 also includes: a distance sensor 108, which is arranged on the bottom shell 1024 and is used to detect the distance value between the bottom shell 1024 and the user's skin; a driving member 104, which is also used to drive the bottom shell 1024 to move in a direction away from the user's skin when the user's sweat volume is greater than a first sweat volume threshold; and, when the distance value reaches a preset distance value, stop driving the bottom shell 1024 to move; wherein the preset distance value is positively correlated with the user's sweat volume.

[0076] In the embodiment of the present application, since the user's skin has a certain elasticity, the elasticity of different users' skin is different, and different users wear the wearable device 100 with different tightness, and the detection principle of the PPG sensor determines that when the distance from the user's skin exceeds a certain limit, the detection result will become inaccurate. Therefore, when the bottom shell 1024 is driven to leave the user's skin, it is necessary to ensure that the distance between the bottom shell 1024 and the user's skin is relatively fixed, so as to take into account the detection result of the PPG sensor and sufficient ventilation gap.

[0077] In this regard, the embodiment of the present application sets a distance sensor 108 on the bottom shell 1024. For example, the distance sensor 108 can be an infrared distance sensor 108, an ultrasonic distance sensor 108, or a millimeter wave distance sensor 108. When it is detected that the amount of sweat of the user is greater than the first sweat threshold, the driving member 104 drives the bottom shell 1024 to move in a direction away from the user's skin, and the distance sensor 108 detects the distance between the bottom shell 1024 and the user's skin in real time.

[0078] When it is detected that the distance value between the bottom shell 1024 and the user's skin reaches a preset distance value, it means that there is a sufficient ventilation gap between the bottom shell 1024 and the user's skin, and the distance will not exceed the detection accuracy of the PPG sensor. At this time, the driving member 104 drives the bottom shell 1024 to stop moving, thereby maintaining a sufficient ventilation gap while taking into account the detection accuracy of the PPG sensor.

[0079] Exemplarily, the greater the amount of sweat a user produces, the greater the ventilation gap required, and the above-mentioned preset distance value is related to the detected amount of sweat a user produces. For example, assume that the first sweat threshold includes multiple thresholds, which are respectively recorded as increasing C1, C2, and C3. When it is detected that the amount of sweat a user produces is greater than C1, the bottom shell 1024 is driven to stop moving when the distance between the bottom shell 1024 and the user's skin is H1. When it is detected that the amount of sweat a user produces is greater than C2, the bottom shell 1024 is driven to stop moving when the distance between the bottom shell 1024 and the user's skin is H2. When it is detected that the amount of sweat a user produces is greater than C3, the bottom shell 1024 is driven to stop moving when the distance between the bottom shell 1024 and the user's skin is H3. It can be understood that H1, H2, and H3 are all less than or equal to the maximum detection distance of the PPG sensor.

[0080] In some embodiments of the present application, the driving member 104 is also used to drive the bottom shell 1024 to move in a direction close to the user's skin when the user's sweat volume is less than or equal to a second sweat volume threshold; wherein the second sweat volume threshold is less than the first sweat volume threshold.

[0081] In the embodiment of the present application, the second sweat volume threshold is a low sweat volume threshold. When it is detected that the user's sweat volume is less than or equal to the second sweat volume threshold, it means that the accumulation of sweat on the user's skin is alleviated, and there is no need to force sweating through the sweating gap. At this time, the driving member 104 drives the bottom shell 1024 to reset, specifically to move in the direction of the user's skin. The movement distance this time is equal to the movement distance away from the user's skin, thereby ensuring the fit between the PPG sensor and the user's skin and ensuring the accuracy of the collection of the user's physiological data and motion data.

[0082] In some embodiments of the present application, a control method for a wearable device is provided. The wearable device includes a dial and a driving member. The dial includes a main body and a bottom shell. The bottom shell can move relative to the main body.

[0083] Fig.13 A flow chart showing a control method of a wearable device according to some embodiments of the present application is shown. Fig.13 As shown, the control method includes:

[0084] Step 1302, detecting the amount of sweat of the user;

[0085] Step 1304: when the amount of sweat of the user is greater than or equal to the first sweat amount threshold, drive the bottom shell to move in a direction away from the user's skin, and detect the distance value between the bottom shell and the user's skin;

[0086] Step 1306, when the distance value reaches a preset distance value, drive the bottom shell to stop moving; wherein the preset distance value is positively correlated with the amount of sweat of the user.

[0087] In an embodiment of the present application, the bottom shell is movably connected to the main body, and the main body is also provided with a driving member, which can drive the bottom shell to move in a direction away from the user's skin, or in a direction close to the user's skin. Exemplarily, when a PPG sensor is provided on the bottom shell, the degree of fit between the PPG sensor and the skin will affect the detection accuracy of the sensor. When the user is not in a scene where he sweats a lot, the driving member drives the bottom shell to move in a direction close to the user's skin, so that the bottom shell, especially the PPG sensor on the bottom shell, fully fits the user's skin, thereby improving the detection accuracy of the PPG sensor.

[0088] When a user sweating scene is detected, such as when the user is detected exercising for a long time, or the current temperature exceeds a threshold, the driving component can be periodically controlled to drive the bottom shell to move in a direction away from the user's skin. After the bottom shell moves a certain distance away from the user's skin, the bottom shell is embedded in the main body. At this time, a ventilation gap is generated between the bottom shell and the user's skin. This ventilation gap can effectively help the skin area that was previously in contact with the bottom shell to quickly sweat and dissipate heat.

[0089] Exemplarily, when it is detected that the user's sweat volume is greater than a preset first sweat volume threshold, it means that the user is currently in a scene of heavy sweating. At this time, the control driving member drives the bottom shell to move in a direction away from the user's skin, thereby creating a sufficient ventilation gap between the bottom shell and the user's skin, helping the user to sweat and dissipate heat, and avoiding wearing discomfort caused by sweat accumulation.

[0090] Since the user's skin has a certain elasticity, and the elasticity of different users' skin is different, different users wear wearable devices with different tightness. The detection principle of the PPG sensor determines that when the distance from the user's skin exceeds a certain limit, the detection result will become inaccurate. Therefore, when the bottom shell is driven away from the user's skin, it is necessary to ensure that the distance between the bottom shell and the user's skin is relatively fixed, so as to take into account the detection results of the PPG sensor and sufficient ventilation gap.

[0091] When it is detected that the distance between the bottom shell and the user's skin reaches a preset distance value, it means that there is enough ventilation gap between the bottom shell and the user's skin, and the distance will not exceed the detection limit of the PPG sensor. At this time, the driving member drives the bottom shell to stop moving, thereby maintaining a sufficient ventilation gap while taking into account the detection accuracy of the PPG sensor.

[0092] Exemplarily, the greater the amount of sweat a user produces, the greater the ventilation gap required, and the above-mentioned preset distance value is related to the detected amount of sweat a user produces. For example, assume that the first sweat threshold includes multiple thresholds, which are respectively recorded as increasing C1, C2, and C3. When it is detected that the amount of sweat a user produces is greater than C1, the bottom shell is driven to stop moving when the distance between the bottom shell and the user's skin is H1. When it is detected that the amount of sweat a user produces is greater than C2, the bottom shell is driven to stop moving when the distance between the bottom shell and the user's skin is H2. When it is detected that the amount of sweat a user produces is greater than C3, the bottom shell is driven to stop moving when the distance between the bottom shell and the user's skin is H3. It can be understood that H1, H2, and H3 are all less than or equal to the maximum detection distance of the PPG sensor.

[0093] The bottom shell part of the dial of the wearable device of the present application is designed to be movable, so that it can move relative to the main body part. At the same time, a driving member that can actively drive the bottom shell to move is arranged in the main body. The driving member enables the bottom shell to actively move away from the skin of the user wearing the wearable device. Therefore, when the user sweats a lot, a ventilation gap can be formed between the user's skin and the wearable device by moving the bottom shell away from the user's skin, which helps the user to sweat and dissipate heat, avoids skin problems caused by sweat accumulation, and improves the wearing experience of the wearable device during exercise or hot weather.

[0094] In some embodiments of the present application, after driving the bottom housing to move in a direction away from the user's skin, the control method further includes:

[0095] When the amount of sweat of the user is less than or equal to the second sweat threshold, the bottom shell is driven to move in a direction close to the user's skin until the bottom shell contacts the user's skin; wherein the second sweat threshold is less than the first sweat threshold.

[0096] In the embodiment of the present application, the second sweat volume threshold is a low sweat volume threshold. When it is detected that the user's sweat volume is less than or equal to the second sweat volume threshold, it means that the accumulation of sweat on the user's skin has been alleviated, and there is no need to force sweating through the sweating gap. At this time, the driving member drives the bottom shell to reset, specifically to move in the direction of the user's skin. The movement distance this time is equal to the movement distance away from the user's skin, thereby ensuring the fit between the PPG sensor and the user's skin and ensuring the accuracy of the collection of the user's physiological data and motion data.

[0097] An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, the various processes of the above-mentioned method embodiment are implemented and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0098] The processor is the processor in the electronic device in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a computer read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0099] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0100] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A wearable device, characterized in that: The wearable device comprises: A dial, the dial comprising a main body and a bottom shell, the bottom shell being arranged on a side of the main body facing the user's skin, the bottom shell having a first state and a second state; wherein in the first state, the bottom shell is in contact with the user's skin; in the second state, the bottom shell is separated from the user's skin; A driving member is disposed in the main body and connected to the bottom shell, and is used for driving the bottom shell to move relative to the main body to switch between the first state and the second state.

2. The wearable device according to claim 1, characterized in that: The wearable device further comprises: An elastic connecting piece, the bottom shell is connected to the main body through the elastic connecting piece.

3. The wearable device according to claim 1, characterized in that: In the first state, at least a portion of the bottom shell is located outside the main body; In the second state, the bottom case is located inside the main body.

4. The wearable device according to claim 1, characterized in that: The bottom shell includes a sliding connection member, and the sliding connection member is slidably connected to the main body; The driving member comprises: A driving motor, wherein the driving motor is arranged on the main body; A transmission member is connected to the output shaft of the driving motor and the sliding connection member respectively.

5. The wearable device according to claim 1, characterized in that: The bottom shell is provided with a magnetic member; the driving member comprises: an electromagnetic module, wherein the electromagnetic module has a third state and a fourth state; Wherein, in the third state, the electromagnetic module attracts the magnetic member to separate the bottom shell from the user's skin, and in the fourth state, the electromagnetic module repels the magnetic member to bring the bottom shell into contact with the user's skin.

6. The wearable device according to claim 1, characterized in that: The driving member comprises: At least one piezoelectric component is disposed on the main body, and the piezoelectric component is used to generate vibration sound waves to the bottom shell, and the vibration sound waves are used to drive the bottom shell to switch from the second state to the first state.

7. The wearable device according to any one of claims 1 to 6, characterized in that: The main body is provided with a vent; the driving member comprises: A fan is arranged on the main body, the fan is arranged opposite to the vent, and the fan is used to generate airflow on a side of the bottom shell away from the user's skin.

8. The wearable device according to any one of claims 1 to 6, characterized in that: The wearable device further comprises: A sweat sensor, which is disposed on the bottom shell and is used to detect the amount of sweat of the user; A distance sensor is disposed on the bottom shell and is used to detect the distance value between the bottom shell and the user's skin.

9. A control method for a wearable device, characterized in that: The wearable device comprises a dial and a driving member, the dial comprises a main body and a bottom shell, and the bottom shell can move relative to the main body; the control method comprises: Detect the amount of sweat a user has; When the amount of sweat of the user is greater than or equal to a first sweat threshold, driving the bottom shell to move in a direction away from the user's skin, and detecting a distance value between the bottom shell and the user's skin; When the distance value reaches a preset distance value, driving the bottom shell to stop moving; Among them, the preset distance value is positively correlated with the amount of sweat of the user.

10. The control method according to claim 9, characterized in that: After driving the bottom shell to move in a direction away from the user's skin, the control method further includes: When the amount of sweat of the user is less than or equal to a second sweat threshold, driving the bottom shell to move toward a direction close to the user's skin until the bottom shell contacts the user's skin; Wherein, the second sweat amount threshold is smaller than the first sweat amount threshold.

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