Wearable device and control method thereof

Abstract

The invention relates to the technical field of wearable devices, in particular to a wearable device and a control method thereof. An equipment body of the wearable equipment comprises a shell, a mainboard, a functional module, an ultrasonic module and a sensor module, and the mainboard controls the ultrasonic module to transmit and receive ultrasonic signals according to current underwater environment parameters and / or human physiological parameters detected by the sensor module; the main board further controls the function module to execute corresponding functions according to the target ultrasonic signals. The ultrasonic signal can be changed when the user operates the wearable device, so that the wearable device can realize function regulation and control on the wearable device without setting a button, the user operation is facilitated, the transmission speed of the ultrasonic signal is high, the reliability is high, and the signal transmission real-time performance of the wearable device is effectively improved.

Description

Technical Field

[0001] The present application relates to the technical field of wearable devices, and in particular to a wearable device and a control method thereof. Background Art

[0002] Diving is an extreme sport or underwater operation. Divers are immersed in water and exposed to high environmental pressure, which is accompanied by certain dangers. Even experienced divers may encounter unexpected situations if they are not careful, and they need timely rescue from people on land. Currently, divers mostly use buttons on wearable devices (such as diving watches) to send distress signals to people on land to call for help. However, due to the high underwater pressure and low visibility, the divers' limited range of motion makes it difficult to turn or press buttons. In addition, turning or pressing buttons may cause water to enter the diving watch, which may damage the diving watch and make it impossible to send a distress signal. Summary of the invention

[0003] The present application discloses a wearable device and a control method thereof, which can realize function regulation of the wearable device by using an ultrasonic module without setting additional buttons, and is convenient for user operation, thereby effectively improving the real-time signal transmission and waterproofness of the wearable device.

[0004] In order to achieve the above objectives, in a first aspect, the present application discloses a wearable device, comprising:

[0005] The device body comprises a housing, a main board, a functional module, an ultrasonic module and a sensor module, wherein the main board, the functional module, the ultrasonic module and the sensor module are all arranged in the housing, and the functional module, the ultrasonic module and the sensor module are electrically connected to the main board;

[0006] The sensor module is configured to detect current underwater environmental parameters and / or human physiological parameters of the wearable device and send them to the mainboard;

[0007] The mainboard is configured to control the ultrasonic module to transmit and receive ultrasonic signals according to the received underwater environmental parameters and / or the human physiological parameters;

[0008] The main board is also configured to control the functional module to perform corresponding functions according to the target ultrasonic signal.

[0009] This application uses the mainboard to control the ultrasonic module to transmit and receive ultrasonic signals according to the current underwater environmental parameters and / or human physiological parameters of the wearable device detected by the sensor module, and then the mainboard controls the functional module to perform corresponding functions according to the target ultrasonic signal. Since the user can perform specified operations on the wearable device (such as touching the wearable device, holding the wearable device, etc.) to change the ultrasonic signal, the wearable device can realize the function control of the wearable device without setting buttons. Such a design is not only convenient for user operation, but also because the ultrasonic signal has a fast transmission speed and high reliability, and no additional buttons are required, it can effectively improve the real-time signal transmission of the wearable device and the sealing and waterproof performance of the wearable device itself.

[0010] In some possible implementations, the mainboard is further configured to determine whether a change in the received ultrasonic signal reaches a preset threshold when the ultrasonic module transmits and receives the ultrasonic signal;

[0011] The main board is configured to control the functional module to execute a corresponding function if the ultrasonic signal changes to a preset threshold.

[0012] Since the user can perform specified operations on the wearable device (such as touching the wearable device, holding the wearable device, etc.) to change the ultrasonic signal, the wearable device can realize function control of the wearable device without setting buttons. Such a design is not only convenient for user operation, but also because the ultrasonic signal has a fast transmission speed and high reliability, and there is no need to set additional buttons, it can effectively improve the real-time signal transmission of the wearable device as well as the sealing and waterproof performance of the wearable device.

[0013] In some possible embodiments, the functional module includes a communication module, which is disposed in the shell and electrically connected to the mainboard, and the communication module establishes a communication connection with the terminal device. The mainboard is configured to generate a functional signal based on the target ultrasonic signal, and control the communication module to send information corresponding to the functional signal to the terminal device.

[0014] By using the communication module to establish a communication connection with the terminal equipment on land, when the user wears the wearable device and conducts underwater activities, he can establish contact with the personnel on land through the wearable device, so that the personnel on land can provide corresponding assistance to the user in a timely manner, which is conducive to improving the safety and interactive experience of the user during underwater activities.

[0015] In some possible implementations, the functional module includes a communication module and a camera module. The camera module is disposed in the shell and electrically connected to the mainboard. The mainboard is configured to control the camera module to collect image information according to the target ultrasonic signal, and control the communication module to send the image information to the terminal device.

[0016] The user can change the ultrasonic signal according to the specified operation of the wearable device to make it correspond to the target ultrasonic signal, thereby controlling the camera module to start and collect image information, and then send the collected image information to the terminal device on land through the communication module. The land personnel can analyze the user's environment and problems based on the image information and take corresponding rescue actions. In this way, users can obtain faster and more effective rescue services, thereby ensuring the safety of users' lives to a greater extent.

[0017] In some possible implementations, the wearable device further includes a touch unit, the ultrasonic signal is transmitted toward the touch unit, and the touch unit is configured to receive a touch action of the user to reflect at least a portion of the ultrasonic signal.

[0018] Therefore, the sensing unit can sense the change of the ultrasonic signal, so that the wearable device can realize the function control of the wearable device without setting buttons. Such a design is not only convenient for user operation, but also can effectively improve the sealing and waterproof performance of the wearable device.

[0019] In some possible implementations, the sensing unit includes a display module, and the display module is disposed on the housing;

[0020] The ultrasonic module includes an ultrasonic transmitting module and an ultrasonic receiving module, wherein the ultrasonic transmitting module is used to transmit an ultrasonic signal penetrating the display module, and the ultrasonic receiving module is used to receive an ultrasonic signal reflected by the display module;

[0021] The display module is configured to be touched to reflect at least a portion of the ultrasonic signal.

[0022] Because when the user wears the wearable device, the display module is usually easy to face the user, and compared with other positions of the wearable device, the operating space on the display module is larger, therefore, through the setting of the display module, the user can change the ultrasonic signal by touching the display module. This triggering method is more convenient for user operation and more operational, which is conducive to improving the timeliness and convenience of operation.

[0023] In some possible implementations, the ultrasonic transmitting module and the ultrasonic receiving module are arranged facing each other.

[0024] Since ultrasonic signals propagate in a straight line, setting the ultrasonic transmitting module and the ultrasonic receiving module facing each other can make the signal path of the wearable device relatively independent, reduce the interference of other signal elements on the wearable device, and thus improve the accuracy of signal reception. In addition, the transmitting direction of the ultrasonic transmitting module is parallel to the receiving direction of the ultrasonic receiving module. Since the propagation path and receiving efficiency of the ultrasonic signal are clearer, the debugging and calibration process of the wearable device can be effectively simplified.

[0025] In some possible implementations, the display module includes a display assembly and a cover plate, wherein the cover plate is disposed on the display assembly, and the cover plate is connected to the housing to cover an opening of the housing;

[0026] The ultrasonic transmitting module is located on one side of the cover plate along the first direction, and the ultrasonic receiving module is located on the other side of the cover plate along the first direction;

[0027] The first direction intersects with a display direction of the display component.

[0028] Since the ultrasonic transmitting module and the ultrasonic receiving module are arranged opposite to each other, and the transmitting direction and the receiving direction of the ultrasonic signal are opposite, that is, the transmitting direction and the receiving direction of the ultrasonic signal are parallel to the first direction, the propagation path of the ultrasonic signal is relatively simple, which can better reduce the interference of external signals, and can better identify the signal reflected from the cover plate, thereby improving the sensitivity of the wearable device to the signal.

[0029] In some possible implementations, a transmission direction of the ultrasonic transmitting module intersects with a receiving direction of the ultrasonic receiving module.

[0030] By intersecting the transmitting direction of the ultrasonic transmitting module with the receiving direction of the ultrasonic receiving module, that is, the ultrasonic transmitting module and the ultrasonic receiving module are arranged on opposite sides, compared with the ultrasonic transmitting module and the ultrasonic receiving module being arranged on the same side, the arrangement of the ultrasonic transmitting module and the ultrasonic receiving module is more diversified, which is convenient for the internal space layout of the wearable device and improves the layout flexibility of the wearable device.

[0031] In some possible implementations, one of the ultrasonic transmitting module and the ultrasonic receiving module is located on the side where the side wall of the shell is located, and the other of the ultrasonic transmitting module and the ultrasonic receiving module is located on the side where the bottom wall of the shell is located.

[0032] Through such a setting, the ultrasonic receiving module can directly receive the ultrasonic signal reflected from the display module, thereby effectively improving the receiving sensitivity and response efficiency of the wearable device; or, the ultrasonic transmitting module can transmit the ultrasonic signal toward the display module, so that when the user touches the display module, more ultrasonic signals can be reflected, thereby effectively improving the signal reception strength of the wearable device, and then improving the recognition accuracy of the wearable device.

[0033] In some possible implementations, when the ultrasonic transmitting module is located on the side where the side wall of the shell is located, the ultrasonic receiving module is located in the middle of the side where the bottom wall of the shell is located.

[0034] Since the middle of the display module is often the most commonly used area and the easiest to touch area, the number of ultrasonic signals reflected back from the middle of the display module is the largest. Therefore, placing the ultrasonic receiving module in the middle of the side where the bottom wall of the shell is located can effectively improve the receiving intensity of the ultrasonic signal, thereby effectively improving the signal recognition accuracy and receiving sensitivity of the wearable device.

[0035] In some possible implementations, the display module includes a display assembly and a cover plate, wherein the cover plate is disposed on the display assembly, and the cover plate is connected to the housing to cover an opening of the housing;

[0036] The ultrasonic transmitting module is arranged corresponding to the cover plate and is located on a side of the cover plate facing the side wall of the housing, and the ultrasonic receiving module is located on a side of the display component away from the cover plate.

[0037] Since the internal structure of the cover plate is relatively uniform relative to the internal space of the wearable device, and the ultrasonic signal propagates in a relatively uniform medium, the ultrasonic receiving module can receive the penetration signal, and the ultrasonic receiving module has a higher sensitivity in receiving the penetration signal, and the ultrasonic transmitting module can still reflect and refract certain ultrasonic signals through the cover plate and penetrate the display module. While ensuring that the ultrasonic transmitting module can emit ultrasonic signals that penetrate the display module, the ultrasonic receiving module can also receive the penetration signal, thereby improving the accuracy and sensitivity of the wearable device in signal recognition.

[0038] In some possible implementations, when the ultrasonic transmitting module is located on the side where the side wall of the shell is located, the ultrasonic receiving module is located on the side where the bottom wall of the shell is located and is arranged close to the ultrasonic transmitting module.

[0039] Since the ultrasonic transmitting module and the ultrasonic receiving module are arranged relatively close to each other, it is beneficial to improve the structural compactness and space utilization of the wearable device.

[0040] In some possible embodiments, when the ultrasonic receiving module is arranged close to the ultrasonic transmitting module, the ultrasonic module further includes a reflector, which is arranged between the ultrasonic receiving module and the ultrasonic transmitting module, and the reflector is configured to reflect at least part of the ultrasonic signal to the ultrasonic receiving module.

[0041] By providing a reflector, the reflection path of the ultrasound wave can be shortened, and the ultrasound transmitting module and the ultrasound receiving module can be arranged more compactly, thereby effectively improving the response efficiency and space utilization of the wearable device.

[0042] In some possible implementations, the display module includes a display assembly and a cover plate, wherein the cover plate is disposed on the display assembly, and the cover plate is connected to the housing to cover an opening of the housing;

[0043] The ultrasonic transmitting module is arranged corresponding to the cover plate and is located on a side of the cover plate facing the side wall of the shell. The ultrasonic receiving module is located on a side of the display component away from the cover plate. The reflector is arranged in the cover plate.

[0044] The ultrasonic module is set corresponding to the display module, and the reflector is set on the cover plate to realize the reflection of the ultrasonic signal. This can make the internal structure of the wearable device more compact and reflect the ultrasonic signal emitted by the ultrasonic transmitting module to the ultrasonic receiving module, thereby helping to improve the internal space utilization of the wearable device and the real-time performance of signal transmission.

[0045] In some possible implementations, the reflection surface of the reflection element has an inclination angle of 20°-60° relative to the receiving direction of the ultrasonic receiving module.

[0046] Such a setting can enable the ultrasonic signal to be received by the ultrasonic receiving module more quickly, so that the functional module can respond more quickly, thereby improving the response efficiency of the wearable device and sending corresponding information to the land personnel as soon as possible.

[0047] When the inclination angle of the reflective surface of the reflector relative to the receiving direction of the ultrasonic receiving module is less than 20°, the ultrasonic signal emitted by the ultrasonic transmitting module is reflected back to the ultrasonic transmitting module by the reflector, making it difficult for the ultrasonic receiving module to receive as many ultrasonic signals as possible, reducing the recognition sensitivity of the ultrasonic receiving module, and thus reducing the functional response efficiency of the wearable device. When the inclination angle of the reflective surface of the reflector relative to the receiving direction of the ultrasonic receiving module is greater than 60°, the ultrasonic signal emitted by the ultrasonic transmitting module is rarely reflected by the reflector to the ultrasonic receiving module, which also makes it difficult for the ultrasonic receiving module to receive as many ultrasonic signals as possible, which also reduces the recognition sensitivity of the ultrasonic receiving module, thereby reducing the functional response efficiency of the wearable device.

[0048] In some possible implementations, the ultrasonic transmitting module includes a first piezoelectric body, and a material of the first piezoelectric body includes at least one of a quartz crystal, a lead zirconate titanate piezoelectric ceramic, a lead-free piezoelectric ceramic, and a piezoelectric composite material;

[0049] and / or,

[0050] The ultrasonic receiving module includes a second piezoelectric body, and a material of the second piezoelectric body includes at least one of polyvinylidene fluoride and polyvinylidene fluoride-trifluoroethylene copolymer.

[0051] Among them, the cost of lead zirconate titanate piezoelectric ceramics is relatively low, which is conducive to reducing the manufacturing cost of wearable devices. Moreover, the piezoelectric strain constant of lead zirconate titanate piezoelectric ceramics is large and the stability is good. It can generate a large charge output under a small external force, so that the ultrasonic transmitting module can efficiently convert electrical energy and mechanical energy to transmit stronger ultrasonic signals, thereby improving the transmission efficiency of the ultrasonic transmitting module and reducing energy loss.

[0052] In addition, the piezoelectric voltage constant of polyvinylidene fluoride material is larger, and it is easier to match with water, air and diving suits (considering that users usually wear diving suits when diving underwater) than ordinary piezoelectric materials. It can more effectively couple the received ultrasonic signal from the underwater environment to the ultrasonic receiving module, reducing the loss of ultrasonic signals during propagation, thereby improving the receiving efficiency and sensitivity of the ultrasonic receiving module. In addition, polyvinylidene fluoride has good wear resistance and stability in high-pressure environments, which enables polyvinylidene fluoride to maintain a good ultrasonic signal reception effect during long-term use.

[0053] In some possible implementations, the thickness of the first piezoelectric body is greater than the thickness of the second piezoelectric body; and / or,

[0054] The thickness of the first piezoelectric body is 0.05 mm-0.20 mm; and / or,

[0055] The thickness of the second piezoelectric body is 5um-20um.

[0056] It is understandable that, since the piezoelectric material of the second piezoelectric body can be polyvinylidene fluoride material, the thinner the thickness of this material, the better its electrical and piezoelectric properties, and the ultrasonic receiving module is mostly set close to the bottom side wall of the shell or one side of the display module, the space at these locations is relatively small, and reducing the thickness of the second piezoelectric body can make the setting method of the ultrasonic receiving module more flexible. The piezoelectric material of the first piezoelectric body can be lead zirconate titanate piezoelectric ceramics. Since the ultrasonic transmitting module requires strong penetration ability, good mechanical strength and durability, the thickness of the first piezoelectric body can be selected to be relatively thick.

[0057] Among them, when the thickness of the first piezoelectric body is less than 0.05mm, due to the brittleness of the piezoelectric material, this will cause the mechanical strength of the first piezoelectric body to decrease, increase the risk of fracture of the first piezoelectric body, and reduce the reliability of the ultrasonic transmitting module. In addition, it will also cause the sensitivity of the first piezoelectric body to decrease, thereby affecting the power output of the ultrasonic transmitting module; when the thickness of the first piezoelectric body is greater than 0.20mm, the power capacity of the first piezoelectric body is too large, and the voltage and current it can withstand are also too large, which will cause the mechanical stress of the first piezoelectric body to be more concentrated, increase the risk of damage or failure of the first piezoelectric body, and reduce the reliability of the ultrasonic transmitting module. In addition, the excessive thickness of the first piezoelectric body increases the overall size and weight of the ultrasonic transmitting module, thereby reducing the space utilization of the wearable device.

[0058] In addition, when the thickness of the second piezoelectric body is less than 5um, due to the brittleness of the piezoelectric material, this will cause the mechanical strength of the second piezoelectric body to decrease, increase the risk of the second piezoelectric body breaking, and reduce the reliability of the ultrasonic receiving module. In addition, it will also cause the sensitivity of the second piezoelectric body to decrease, thereby affecting the power output of the ultrasonic receiving module; when the thickness of the second piezoelectric body is greater than 20um, the power capacity of the second piezoelectric body is too large, and the voltage and current it can withstand are also too large, which will cause the mechanical stress of the second piezoelectric body to be more concentrated, increase the risk of damage or failure of the second piezoelectric body, and reduce the reliability of the ultrasonic receiving module. In addition, the excessive thickness of the second piezoelectric body increases the overall size and weight of the ultrasonic receiving module, thereby reducing the space utilization of the wearable device.

[0059] In some possible implementations, the wearable device includes any one of an underwater watch, underwater goggles, and an underwater bracelet.

[0060] The wearable device of the present application can meet the requirements for use in underwater environments, allowing users to trigger the functions of the wearable device even in complex underwater environments, thereby realizing functions such as sending distress information, sending location information, and sending image information to people on land, which is conducive to timely and effective protection of the user's personal safety.

[0061] In a second aspect, the present application further discloses a control method for a wearable device, wherein the wearable device is the wearable device as described in the first aspect above, and the control method comprises:

[0062] The mainboard controls the ultrasonic module to transmit and receive ultrasonic signals according to the current underwater environmental parameters and / or human physiological parameters of the wearable device detected by the sensor module;

[0063] The mainboard controls the functional module to perform corresponding functions according to the target ultrasonic signal.

[0064] The control method of the wearable device disclosed in the present application changes the ultrasonic signal by the user performing specified operations on the wearable device, so that the wearable device can realize function regulation of the wearable device without setting buttons, which is convenient for user operation. The ultrasonic signal has a fast transmission speed and high reliability, thereby effectively improving the real-time transmission performance and waterproof performance of the wearable device at the same time.

[0065] Compared with the prior art, the beneficial effects of this application are:

[0066] The present application discloses a wearable device and a control method thereof. The device body of the wearable device includes a housing, a main board, a functional module, an ultrasonic module and a sensor module. The sensor module is configured to detect the current underwater environmental parameters and / or human physiological parameters of the wearable device and send them to the main board. The ultrasonic module is configured to transmit and receive ultrasonic signals. The main board is configured to control the ultrasonic module to transmit and receive ultrasonic signals when receiving the underwater environmental parameters and / or human physiological parameters. The main board is also configured to control the functional module to perform corresponding functions according to the target ultrasonic signal. Since the user's operation on the wearable device will change the ultrasonic signal, based on this, through the setting of the ultrasonic module, the wearable device can realize the function control of the wearable device without setting buttons, which is convenient for user operation, and the ultrasonic signal has a fast transmission speed and high reliability, thereby effectively improving the real-time signal transmission and waterproofness of the wearable device at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0067] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0068] Figure 1A A schematic diagram of the structure of a wearable device disclosed in an embodiment of the present application;

[0069] Figure 1B A structural block diagram of a wearable device disclosed in an embodiment of the present application;

[0070] Figure 2 for Figure 1A A cross-sectional view of aa in (omitting the main board, functional module, communication module, camera module, and sensor module);

[0071] Figure 3 for Figure 1A Another cross-sectional view of aa in the figure (omitting the main board, functional module, communication module, camera module and sensor module);

[0072] Figure 4 for Figure 1A Another cross-sectional view of aa in the figure (omitting the main board, functional module, communication module, camera module and sensor module);

[0073] Figure 5 for Figure 1A Another cross-sectional view of aa in the figure (omitting the main board, functional module, communication module, camera module and sensor module);

[0074] Figure 6 for Figure 1A Another cross-sectional view of aa in the figure (omitting the main board, functional module, communication module, camera module and sensor module);

[0075] Figure 7 for Figure 1A Another cross-sectional view of aa in the figure (omitting the main board, functional module, communication module, camera module and sensor module);

[0076] Figure 8 for Figure 1A Another cross-sectional view of aa in the figure (omitting the main board, functional module, communication module, camera module and sensor module);

[0077] Fig. 9 for Figure 1A Another cross-sectional view of aa in the figure (omitting the main board, functional module, communication module, camera module and sensor module);

[0078] Fig.10 for Figure 1A Another cross-sectional view of aa in the figure (omitting the main board, functional module, communication module, camera module and sensor module);

[0079] Fig.11 for Figure 1A Another cross-sectional view of aa in the figure (omitting the main board, functional module, communication module, camera module and sensor module);

[0080] Fig.12 for Figure 1A Another cross-sectional view of aa in the figure (omitting the main board, functional module, communication module, camera module and sensor module);

[0081] Fig.13 for Figure 1A Another cross-sectional view of aa in the figure (omitting the main board, functional module, communication module, camera module and sensor module);

[0082] Fig.14 for Figure 1A Another cross-sectional view of aa in the figure (omitting the main board, functional module, communication module, camera module and sensor module);

[0083] Fig.15 for Figure 1A Another cross-sectional view of aa in the figure (omitting the main board, functional module, communication module, camera module and sensor module);

[0084] Fig.16 for Figure 1A Another cross-sectional view of aa in the figure (omitting the main board, functional module, communication module, camera module and sensor module);

[0085] Fig.17 for Figure 1A Another cross-sectional view of aa in the figure (omitting the main board, functional module, communication module, camera module and sensor module);

[0086] Fig.18 A cross-sectional view of an ultrasonic transmitting module disclosed in an embodiment of the present application;

[0087] Fig.19 A cross-sectional view of an ultrasonic receiving module disclosed in an embodiment of the present application;

[0088] Fig. 20 This is a flowchart of a wearable device control method disclosed in an embodiment of the present application.

[0089] Description of reference numerals:

[0090] 100-wearable device; 1-device body; 11-housing; 12-wearable component; 1a-mainboard; 13-functional module; 131-communication module; 132-camera module; 14-sensor module; 15-touch unit;

[0091] 2-ultrasonic module; 21-ultrasonic transmitting module; 211-first piezoelectric body; 212-first circuit assembly; 22-ultrasonic receiving module; 221-second piezoelectric body; 222-second circuit assembly; 23-reflecting element;

[0092] 3-display module; 31-display assembly; 32-cover plate;

[0093] 200-terminal equipment;

[0094] F1-first direction; F2-display direction. DETAILED DESCRIPTION

[0095] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0096] In the present invention, the directions or positional relationships indicated by the terms "upper", "lower", "bottom", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings. These terms are mainly used to better describe the present invention and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific direction, or to be constructed and operated in a specific direction.

[0097] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those skilled in the art, the specific meanings of these terms in the present invention can be understood according to specific circumstances.

[0098] In addition, the terms "disposed", "provided with", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0099] In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise specified, "plurality" means two or more.

[0100] Diving, as a sport that combines extreme challenges and professional skills, or a necessary means to perform specific underwater operations, requires divers to go deep into the water and directly face the environmental pressure that increases sharply with the depth. Although this activity is already familiar to many experienced divers, it still hides risks that cannot be ignored. Even the most experienced divers may encounter emergencies due to momentary negligence or misjudgment in the complex and changing underwater environment, and urgently need rapid assistance from land.

[0101] At present, divers generally rely on advanced wearable devices (such as diving watches) as an important bridge to communicate with land rescue teams. These diving watches are usually equipped with emergency buttons, which are designed to allow divers to quickly send distress signals to ground control stations or companions when they are in danger. However, the reality is far more complicated than imagined. Specifically, the high-pressure environment underwater not only limits the diver's range of physical activities and reduces the flexibility of operation, but also makes fine movements such as turning the dial or accurately pressing buttons extremely difficult. Under such extreme conditions, even simple operations may become difficult to achieve due to the diver's limited movements.

[0102] In addition, any attempt to operate the buttons underwater may increase the risk of water entering the diving watch due to the momentary loosening of the waterproof seal or improper pressure. Once the diving watch is flooded due to improper operation, it may not only damage the internal electronic components and affect the normal transmission of signals, but may even completely fail the entire device, thus cutting off the only direct way for the diver to communicate with the outside world.

[0103] In view of this, the present application discloses a wearable device and a control method thereof, which can realize function control of the wearable device without setting buttons, and is convenient for user operation. The ultrasonic signal has a fast transmission speed and high reliability, thereby effectively improving the real-time signal transmission and waterproofness of the wearable device.

[0104] The technical solution of the present application will be further described below in conjunction with embodiments and drawings.

[0105] The embodiment of the present application discloses a wearable device 100, which has a certain waterproof level, for example, a waterproof level not less than 30m, 50m, 100m or 200m. The wearable device 100 in the embodiment of the present application may include but is not limited to a watch, a bracelet, an armband, glasses, and a leg band, etc., which is not limited in the embodiment of the present application. The present application will be described later by taking the wearable device 100 as a watch as an example, and other wearable devices 100 may refer to this embodiment.

[0106] Optionally, the wearable device 100 may be an underwater wearable device suitable for use in an underwater environment, for example, it may include but is not limited to any underwater wearable device 100 of an underwater watch, underwater goggles, underwater bracelet, underwater leg ring, and underwater arm ring. It is understandable that the wearable device 100 of the present application can meet the use requirements in an underwater environment, so that the user can trigger the function of the wearable device 100 even in a complex underwater environment, thereby realizing functions such as sending a distress message, sending location information, and sending image information to land personnel, which is conducive to timely and effective protection of the user's personal safety.

[0107] Please also read Figure 1A to Figure 1B In the first aspect, the embodiment of the present application discloses a wearable device 100, which includes a device body 1, and the device body 1 includes a housing 11, a main board 1a, a functional module 13, an ultrasonic module 2, and a sensor module 14. The main board 1a is arranged in the housing 11, the functional module 13 is arranged in the housing 11 and is electrically connected to the main board 1a, and the sensor module 14 is arranged in the housing 11 and is electrically connected to the main board 1a. The sensor module 14 is configured to detect the current underwater environmental parameters and / or human physiological parameters of the wearable device 100 and send them to the main board 1a. The ultrasonic module 2 is arranged in the housing 11 and is electrically connected to the main board 1a. The ultrasonic module 2 is configured to transmit and receive ultrasonic signals. The main board 1a is configured to control the ultrasonic module 2 to transmit and receive ultrasonic signals according to the received underwater environmental parameters and / or human physiological parameters, and the main board 1a is also configured to control the functional module 13 to perform corresponding functions according to the target ultrasonic signal.

[0108] It can be understood that since the wearable device 100 can be suitable for use in an underwater environment, that is, the wearable device 100 can be an underwater wearable device, based on this, the sensor module 14 can detect the underwater environment in which the wearable device is currently located, that is, the underwater environmental parameters refer to the underwater environmental parameters of the wearable device 100 currently located detected by the sensor module 14, such as underwater depth, underwater pressure, underwater flow rate, underwater temperature, underwater turbidity, etc.

[0109] It can be understood that since the physiological parameters of the human body will change due to the influence of the environment in an underwater environment, based on this, the human physiological parameters refer to the current human physiological parameters detected by the sensor module 14 when the user wears the wearable device 100, such as body temperature, heart rate, respiration, blood pressure, blood oxygen saturation, etc.

[0110] When the mainboard 1a of the wearable device 100 matches the preset values ​​according to the current underwater environmental parameters and / or human physiological parameters of the wearable device 100 detected by the sensor module 14, the mainboard 1a can control the ultrasonic module 2 to transmit and receive ultrasonic signals. The user triggers the setting operation on the wearable device 100 to change the ultrasonic signal. At this time, when the ultrasonic signal received by the mainboard 1a changes, that is, the target ultrasonic signal is received, the functional module 13 can be controlled to perform the corresponding function according to the target ultrasonic signal. The target ultrasonic signal refers to: an ultrasonic signal corresponding to a preset ultrasonic signal is received, that is, the preset ultrasonic signal refers to an ultrasonic signal of a preset threshold.

[0111] The specified operation of changing the ultrasonic signal may include, but is not limited to, touching the wearable device 100, holding the wearable device 100, etc., which is not specifically limited in this application. For example, touching the display module 3 of the wearable device 100 or touching the outer periphery of the housing 11 of the wearable device 100, and holding the wearable device 100 may be, for example, holding the housing 11 of the wearable device 100 or holding the display module 3 of the wearable device 100.

[0112] For example, when a user wears the wearable device 100 of the embodiment of the present application, the sensor module 14 of the wearable device 100 continuously detects the current underwater environmental parameters and / or human physiological parameters. When the mainboard 1a receives underwater environmental parameters or human physiological parameters that are consistent with the preset values, the mainboard 1a controls the ultrasonic module 2 to transmit and receive ultrasonic signals. When the user needs to use a certain function on the wearable device 100, the user changes the ultrasonic signal by triggering a specified operation on the wearable device 100 (such as touching the wearable device 100, holding the wearable device 100, etc.), and the mainboard 1a compares the received ultrasonic signal with the preset value signal. When the received ultrasonic signal is consistent with the set ultrasonic signal, the received ultrasonic signal is the target ultrasonic signal, and the mainboard 1a controls the functional module 13 to perform the corresponding function according to the target ultrasonic signal.

[0113] Among them, the main board 1a controls the functional module 13 to perform corresponding functions according to the target ultrasonic signal, and the functions may include but are not limited to sending distress information, sending location information, sending image information, etc. to land personnel.

[0114] It can be seen that the present application uses the mainboard 1a to control the ultrasonic module 2 to transmit and receive ultrasonic signals according to the current underwater environmental parameters and / or human physiological parameters of the wearable device 100 detected by the sensor module 14, and then the mainboard 1a controls the functional module 13 to perform corresponding functions according to the target ultrasonic signal. Since the user can perform specified operations on the wearable device 100 (such as touching the wearable device 100, holding the wearable device 100, etc.) to change the ultrasonic signal, the wearable device 100 can realize the function control of the wearable device 100 without setting buttons. Such a design is not only convenient for user operation, but also because the ultrasonic signal has a fast transmission speed and high reliability, and no additional buttons are required, it can effectively improve the real-time signal transmission of the wearable device 100 and the sealing and waterproof performance of the wearable device 100.

[0115] Optionally, the wearable device 100 also includes a wearable component 12, which is connected to both sides of the shell 11, and the wearable component 12 is used to fix the device body 1 on a fixing member (not shown). There can be many ways to connect the wearable component 12, such as bolt connection, key connection, pin connection, etc. Exemplarily, when the shell 11 and the wearable component 12 are bolted, the shell 11 has a through hole with an internal thread, and the wearable component 12 is provided with a through hole with a corresponding internal thread. By making the two through holes correspond to each other and screwing in the bolts with corresponding external threads, the shell 11 and the wearable component 12 are firmly connected. Compared with the key connection or pin connection, the bolt connection can make the connection force distribution between the shell 11 and the wearable component 12 uniform, thereby increasing the shear strength and tensile strength of the connection between the two, thereby improving the mechanical strength between the shell 11 and the wearable component 12, and then improving the service life of the wearable device 100.

[0116] For example, when the wearable device 100 is a watch, the wearable component 12 may be a watch strap, and when the wearable device 100 is an armband, the wearable component 12 may be an armband of the armband. The above-mentioned fixing member may be the user's wrist, arm, ankle, head or other fixed position.

[0117] In some embodiments, the mainboard 1a is also configured to determine whether the change of the received ultrasonic signal reaches a preset threshold when the ultrasonic module 2 transmits and receives the ultrasonic signal. The mainboard 1a is configured to control the functional module 13 to perform a corresponding function if the change of the ultrasonic signal reaches the preset threshold. Since the user can perform a specified operation on the wearable device 100 (such as touching the wearable device 100, holding the wearable device 100, etc.) to change the ultrasonic signal, the wearable device 100 can achieve function control of the wearable device 100 without setting buttons. Such a design is not only convenient for user operation, but also because the ultrasonic signal has a fast transmission speed and high reliability, and no additional buttons are required, it can effectively improve the real-time signal transmission of the wearable device 100 and the sealing and waterproof performance of the wearable device 100.

[0118] In some embodiments, the functional module 13 may include a communication module 131, which is disposed in the housing 11 and electrically connected to the mainboard 1a, and the communication module 131 establishes a communication connection with the terminal device 200 (which may be a terminal device 200 on land), and the mainboard 1a is configured to generate a functional signal according to the target ultrasonic signal, and control the communication module 131 to send information corresponding to the functional signal to the terminal device 200. By using the communication module 131 to establish a communication connection with the terminal device 200 on land, when the user wears the wearable device 100 for underwater activities, he can establish contact with land personnel through the wearable device 100, so that the land personnel can provide corresponding help to the user in a timely manner, which is conducive to improving the safety and interactive experience of the user during underwater activities.

[0119] It is understandable that the communication module 131 may include but is not limited to a Bluetooth module, a WIFI module, an NFC (Nearfield Communication) module, etc., and the embodiment of the present application is not limited to this.

[0120] Exemplarily, when the sensor module 14 detects that the current underwater environmental parameters have reached preset values ​​(for example, it detects that the current water pressure has reached the preset water pressure), or the sensor module 14 detects that the current user's human physiological parameters have reached preset values ​​(for example, it detects that the current user's heart rate has reached the preset heart rate), at this time, the wearable device 100 determines that the user may be in a dangerous state, and the mainboard 1a controls the ultrasonic module 2 to transmit and receive ultrasonic signals; when the user performs a specified operation on the wearable device 100, the mainboard 1a can compare the ultrasonic signal changed by the specified operation with the target ultrasonic signal, and generate a corresponding functional signal based on the target ultrasonic signal, thereby sending information corresponding to the functional signal to the terminal device 200 on land through the communication module 131 to remind the land personnel that the user currently needs rescue, so that the land personnel can promptly and effectively protect the user's life safety.

[0121] The information corresponding to the function signal may include but is not limited to distress information, location information, image information, etc. The information corresponding to the function signal may be in text form or image form, etc.

[0122] The terminal device 200 may include but is not limited to mobile phones, tablet computers, laptop computers, computers, wearable devices (such as smart watches or smart bracelets, etc.), drones, robots, digital cameras, smart homes, smart helmets, smart glasses and other devices with communication functions. The terminal device 200 may also be a handheld device with wireless communication functions, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, an electronic device in a 5G network, or an electronic device in a public land mobile network (PLMN) to be evolved in the future, etc., which is not limited in the embodiments of the present application.

[0123] In some embodiments, the functional module 13 includes a communication module 131 and a camera module 132, the camera module 132 is disposed in the housing 11 and electrically connected to the mainboard 1a, and the mainboard 1a is configured to control the camera module 132 to collect image information according to the target ultrasonic signal, and control the communication module 131 to send the image information to the terminal device 200. It is understandable that the user can change the ultrasonic signal according to the specified operation of the wearable device 100 to make it correspond to the target ultrasonic signal, thereby controlling the camera module 132 to start and collect image information, and then send the collected image information to the terminal device 200 through the communication module 131.

[0124] Exemplarily, when the sensor module 14 detects that the current underwater environmental parameters have reached a preset value (for example, the current water pressure has reached a preset water pressure), or the sensor module 14 detects that the current user's human physiological parameters have reached a preset value (for example, the current user's heart rate has reached a preset heart rate), at this time, the wearable device 100 determines that the user may be in a dangerous state, and the mainboard 1a controls the ultrasonic module 2 to transmit and receive ultrasonic signals; when the user performs a specified operation on the wearable device 100 to change the ultrasonic signal so that it corresponds to the target ultrasonic signal, the camera module 132 is controlled to start and collect image information, and then the collected image information is sent to the terminal device 200 through the communication module 131, and the land personnel can analyze the user's environment and the problems they face based on the image information, and take corresponding rescue actions. As a result, users can obtain faster and more effective rescue services, thereby ensuring the user's life safety to a greater extent.

[0125] It is understandable that the ultrasonic module 2 can be an integrated ultrasonic module 2 or a split ultrasonic module 2, and the embodiment of the present application does not specifically limit this. The specific setting method of the integrated ultrasonic module 2 is not limited. For example, the integrated ultrasonic module 2 can be set between the housing 11 and the display module of the wearable device, for example, it can be set on the housing 11, or it can also be set on the display module of the wearable device.

[0126] In some embodiments, the ultrasonic module 2 includes an ultrasonic transmitting module 21 and an ultrasonic receiving module 22. The ultrasonic transmitting module 21 is used to transmit ultrasonic signals, and the ultrasonic receiving module 22 is used to receive ultrasonic signals reflected by the display module of the wearable device. The arrangement of the ultrasonic transmitting module 21 and the ultrasonic receiving module 22 in the housing 11 will be described in detail later.

[0127] In some embodiments, the wearable device 100 further includes a touch unit 15, the ultrasonic signal is transmitted toward the touch unit 15, and the touch unit 15 is configured to receive a touch action of the user to reflect at least part of the ultrasonic signal.

[0128] It can be understood that the touch action is the aforementioned designated operation of changing the ultrasonic signal, such as touching the wearable device 100, holding the wearable device 100, etc. For example, touching the display module 3 of the wearable device 100 or touching the outer periphery of the housing 11 of the wearable device 100, and holding the wearable device 100 can be, for example, holding the housing 11 of the wearable device 100 or holding the display module 3 of the wearable device 100. Thus, the touch unit 15 can be touched to change the ultrasonic signal, so that the wearable device 100 can realize the function control of the wearable device 100 without setting a button. Such a design is not only convenient for user operation, but also can effectively improve the sealing performance and waterproof performance of the wearable device 100.

[0129] Optionally, the touch sensing unit 15 includes a display module 3, and the display module 3 is arranged on the housing 11. The display module 3 can be configured to be touched to send a target ultrasonic signal to the mainboard 1a. Since the display module 3 is usually easy to face the user when the user wears the wearable device 100, and compared with other positions of the wearable device 100, the operable space on the display module 3 is larger and easier to operate, therefore, through the setting of the display module 3, the user can change the ultrasonic signal by touching the display module 3. Such a triggering method is more convenient for the user to operate and has stronger operability, which is conducive to improving the timeliness and convenience of the operation.

[0130] Of course, as another embodiment, the housing 11 can also be formed as a touch unit 15, and the housing 11 is configured to be touched to send a target ultrasonic signal to the mainboard 1a. When the user wears the wearable device 100, the housing 11 is the outer peripheral surface of the wearable device 100, and the area that can be touched by the user is the largest. The housing 11 is used as the touch unit 15, and the ultrasonic signal is changed by touching the housing 11. This triggering method is more convenient for the user to operate and has stronger operability, which is conducive to improving the timeliness and convenience of the operation.

[0131] It can be understood that the specified operation of changing the ultrasonic signal by touching the display module 3 may include but is not limited to continuously contacting or pressing the display module 3 for a certain period of time (for example, 2s, 3s, 4s, etc.), continuously contacting or pressing the display module 3 for a certain number of times (for example, once, twice, etc.), completely covering the display module 3 for a certain period of time (for example, 2s, 3s, 4s, etc.), etc., and the present application does not make specific limitations on this.

[0132] For example, when a user wearing the wearable device 100 encounters a dangerous situation and needs to send a distress signal, the user can change the ultrasonic signal by pressing the display module 3 for two seconds, thereby sending a distress signal to the terminal device 200; for another example, when a user wearing the wearable device 100 encounters a situation where he needs to inform the on-site situation, the user can change the ultrasonic signal by pressing the display module 3 twice in succession, thereby turning on the camera function of the wearable device 100 and sending the collected image information to the terminal device 200.

[0133] In addition, compared with the integrated ultrasonic module 2 for transmitting and receiving ultrasonic signals, the split ultrasonic module of the embodiment of the present application separately sets the ultrasonic transmitting module 21 and the ultrasonic receiving module 22. This setting method is more flexible and has stronger anti-interference ability, and can effectively avoid the problem of aftershocks caused by mutual interference between the ultrasonic transmitting module 21 and the ultrasonic receiving module 22, thereby effectively improving the measurement accuracy of the ultrasonic module 2, and then improving the reliability of the wearable device 100, which is suitable for environments requiring high precision and complex, such as underwater environments.

[0134] Optionally, the ultrasonic transmitting module 21 and the ultrasonic receiving module 22 may be configured in a variety of ways, which will be described below with examples.

[0135] Please also read Figures 2 to 5 , wherein the dotted arrows in each figure are the transmitting direction and receiving direction of the ultrasonic signal, respectively. In some embodiments, the ultrasonic transmitting module 21 and the ultrasonic receiving module 22 are arranged opposite to each other, that is, the transmitting direction of the ultrasonic transmitting module 21 and the receiving direction of the ultrasonic receiving module 22 are parallel to each other. Since the propagation of ultrasonic signals is in a straight line, arranging the ultrasonic transmitting module 21 and the ultrasonic receiving module 22 opposite to each other can make the signal path of the wearable device 100 relatively independent, reduce the interference of other signal elements on the wearable device 100, and thus improve the accuracy of signal reception. In addition, the transmitting direction of the ultrasonic transmitting module 21 and the receiving direction of the ultrasonic receiving module 22 are parallel to each other. Since the propagation path and receiving efficiency of the ultrasonic signal are clearer, the debugging and calibration process of the wearable device 100 can be effectively simplified.

[0136] Optionally, the display module 3 includes a display component 31 and a cover plate 32, the cover plate 32 is arranged on the display component 31, and the cover plate 32 is connected to the shell 11 to cover the opening of the shell 11. The ultrasonic transmitting module 21 is located on one side of the cover plate 32 along the first direction F1, and the ultrasonic receiving module 22 is located on the other side of the cover plate 32 along the first direction F1. Among them, the first direction F1 intersects with the display direction F2 of the display component 31. Since the ultrasonic transmitting module 21 and the ultrasonic receiving module 22 are arranged opposite to each other, and the emission direction and the receiving direction of the ultrasonic signal are opposite, that is, the emission direction and the receiving direction of the ultrasonic signal are parallel to the first direction F1, the propagation path of the ultrasonic signal is relatively simple, which can better reduce the interference of external signals, and the signal reflected from the cover plate 32 can be better identified, thereby improving the receiving sensitivity of the wearable device 100 to the signal.

[0137] It is understandable that the positional relationship between the ultrasonic transmitting module 21, the ultrasonic receiving module 22, the housing 11, the cover 32, and the display assembly 31 includes but is not limited to the following: Figures 2 to 5 In the illustrated embodiments, each embodiment can realize the corresponding transmission of ultrasonic signals penetrating the display module 3 and the reception of ultrasonic signals reflected back by the display module 3, thereby realizing the function control of the wearable device 100.

[0138] For example, Figure 2 As shown, for example, when the ultrasonic transmitting module 21 is disposed on the side wall surface of the cover plate 32 along the first direction F1 , the ultrasonic receiving module 22 is disposed on the side wall surface of the cover plate 32 along the first direction F1 .

[0139] For example, Figure 3 As shown, when the ultrasonic transmitting module 21 is disposed on the side wall surface of the cover plate 32 along the first direction F1 , the ultrasonic receiving module 22 is disposed on the side wall surface of the housing 11 along the first direction F1 .

[0140] For example, Figure 4 As shown, when the ultrasonic transmitting module 21 is disposed on the side wall surface of the housing 11 along the first direction F1 , the ultrasonic receiving module 22 is disposed on the side wall surface of the cover plate 32 along the first direction F1 .

[0141] For example, Figure 5 As shown, when the ultrasonic transmitting module 21 is disposed on the side wall surface of the housing 11 along the first direction F1 , the ultrasonic receiving module 22 is disposed on the side wall surface of the housing 11 along the first direction F1 .

[0142] Please also read Figures 6 to 9, wherein the dotted arrows in the figure are the transmitting direction and receiving direction of the ultrasonic signal, respectively. Optionally, the ultrasonic transmitting module 21 and the ultrasonic receiving module 22 are both located on the side of the display component 31 away from the cover plate 32, that is, the transmitting direction and the receiving direction of the ultrasonic signal are parallel to the display direction F2. At this time, the ultrasonic transmitting module 21 transmits ultrasonic waves that penetrate the display module 3 and receives ultrasonic signals reflected by the user touching the cover plate 32, and the ultrasonic receiving module 22 is arranged toward the cover plate 32 to directly receive the reflected ultrasonic signals, thereby improving the receiving sensitivity and response speed of the wearable device 100.

[0143] It is understandable that the positional relationship between the ultrasonic transmitting module 21, the ultrasonic receiving module 22, the housing 11, the cover 32, and the display assembly 31 includes but is not limited to the following: Figures 6 to 9 In the illustrated embodiments, each embodiment can realize the corresponding transmission of ultrasonic signals penetrating the display module 3 and the reception of ultrasonic signals reflected back by the display module 3, thereby realizing the function control of the wearable device 100.

[0144] For example, Figure 6 As shown, the ultrasonic transmitting module 21 and the ultrasonic receiving module 22 are both arranged on a surface of the display component 31 which faces away from the cover plate 32 .

[0145] For example, Figure 7 As shown, the ultrasonic transmitting module 21 is disposed on the bottom wall surface of the housing 11 , and the ultrasonic receiving module 22 is disposed on a side surface of the display component 31 away from the cover plate 32 .

[0146] For example, Figure 8 As shown, the ultrasonic transmitting module 21 is disposed on a surface of the display assembly 31 which is away from the cover plate 32 , and the ultrasonic receiving module 22 is disposed on the bottom wall surface of the housing 11 .

[0147] For example, Fig. 9 As shown, the ultrasonic transmitting module 21 and the ultrasonic receiving module 22 are both arranged on the bottom wall surface of the housing 11 .

[0148] It is understandable that the cover plate 32 is usually a transparent cover plate, and the cover plate 32 is used to protect the display component 31 from interference and damage from the complex external environment. The material of the cover plate 32 may include but is not limited to any one of glass, steel, and ceramic, and the embodiment of the present application does not limit this. Among them, the cover plate 32 can be sapphire made of aluminum oxide material. In addition, since the wearable device 100 of the present application can be used in an underwater environment, the material of the cover plate 32 can be made of a high-hardness material, which is conducive to providing the wearable device 100 with better mechanical strength and sealing.

[0149] It is understandable that the display component 31 can use an OLED (Organic Light Emitting Diode) screen or an LCD (Liquid Crystal Display) screen, which is not limited in the present embodiment. The display component 31 can be used to display information and provide an interactive interface for the user. The shape of the display component 31 can be an ellipse, a circle, a rectangle or an arc-cornered rectangle. The arc-cornered rectangle can sometimes be called a rounded rectangle, that is, the four corners of the rectangle use arc transitions, and the four sides of the rectangle are roughly straight line segments.

[0150] Please also read Figures 10 to 13 , wherein the dotted arrows in the figure are the transmitting direction and the receiving direction of the ultrasonic signal, respectively. In some embodiments, the transmitting direction of the ultrasonic transmitting module 21 intersects with the receiving direction of the ultrasonic receiving module 22, that is, the ultrasonic transmitting module 21 and the ultrasonic receiving module 22 are arranged on different sides. Compared with the ultrasonic transmitting module 21 and the ultrasonic receiving module 22 being arranged on the same side, the ultrasonic transmitting module 21 and the ultrasonic receiving module 22 are arranged in more diversified ways, which is convenient for the internal space layout of the wearable device 100 and improves the layout flexibility of the wearable device 100.

[0151] Optionally, one of the ultrasonic transmitting module 21 and the ultrasonic receiving module 22 is located on the side where the side wall of the shell 11 is located, and the other of the ultrasonic transmitting module 21 and the ultrasonic receiving module 22 is located on the side where the bottom wall of the shell 11 is located.

[0152] Combination Figure 10 to Figure 11 For example, when the ultrasonic transmitting module 21 is located on the side of the side wall of the housing 11, the ultrasonic receiving module 22 is located on the side of the bottom wall of the housing 11. In this way, the ultrasonic receiving module 22 can directly receive the ultrasonic signal reflected from the display module 3, thereby effectively improving the receiving sensitivity and response efficiency of the wearable device 100.

[0153] Combination Figure 12 to Figure 13 For example, when the ultrasonic receiving module 22 is located on the side where the side wall of the housing 11 is located, the ultrasonic transmitting module 21 is located on the side where the bottom wall of the housing 11 is located. In this way, the ultrasonic transmitting module 21 can transmit ultrasonic signals toward the display module 3, so that when the user touches the display module 3, more ultrasonic signals can be reflected, thereby effectively improving the signal receiving strength of the wearable device 100, and further improving the recognition accuracy of the wearable device 100.

[0154] It is understandable that the positional relationship between the ultrasonic transmitting module 21, the ultrasonic receiving module 22, the housing 11, the cover 32, and the display assembly 31 includes but is not limited to the following: Figures 10 to 13In the illustrated embodiments, each embodiment can realize the corresponding transmission of ultrasonic signals penetrating the display module 3 and the reception of ultrasonic signals reflected back by the display module 3, thereby realizing the function control of the wearable device 100.

[0155] For example, Fig.10 As shown, the ultrasonic transmitting module 21 is arranged corresponding to the cover plate 32 and is arranged on the side wall surface of the shell 11 , and the ultrasonic receiving module 22 is arranged on the bottom wall surface of the shell 11 .

[0156] For example, Fig.11 As shown, the ultrasonic transmitting module 21 is arranged corresponding to the cover plate 32 and is arranged on the side wall surface of the housing 11 , and the ultrasonic receiving module 22 is arranged on a side surface of the display component 31 away from the cover plate 32 .

[0157] For example, Fig.12 As shown, in another exemplary embodiment, the ultrasonic transmitting module 21 is disposed on the bottom wall surface of the shell 11 , and the ultrasonic receiving module 22 is disposed corresponding to the cover plate 32 and is disposed on the side wall surface of the shell 11 .

[0158] For example, Fig.13 As shown, in another exemplary embodiment, the ultrasonic transmitting module 21 is disposed on a surface of the display assembly 31 facing away from the cover plate 32 , and the ultrasonic receiving module 22 is disposed corresponding to the cover plate 32 and on a side wall surface of the housing 11 .

[0159] See again Figure 10 to Figure 11 In some embodiments, when the ultrasonic transmitting module 21 is located on the side where the side wall of the housing 11 is located, the ultrasonic receiving module 22 is located in the middle of the side where the bottom wall of the housing 11 is located. Since the middle of the display module 3 is often the most commonly used area and the most easily touched area, the ultrasonic signal reflected back from the middle of the display module 3 is the largest. Therefore, placing the ultrasonic receiving module 22 in the middle of the side where the bottom wall of the housing 11 is located can effectively improve the receiving strength of the ultrasonic signal, thereby effectively improving the signal recognition accuracy and receiving sensitivity of the wearable device 100.

[0160] Of course, as other examples, when the ultrasonic transmitting module 21 is located on the side of the side wall of the shell 11, the ultrasonic receiving module 22 can also be located on the side of the bottom wall of the shell 11 close to the ultrasonic transmitting module 21, or, located on the other side of the bottom wall of the shell 11 away from the ultrasonic transmitting module 21, and the embodiments of the present application are not limited to this.

[0161] Optionally, the display module 3 includes a display component 31 and a cover plate 32, the cover plate 32 is arranged on the display component 31, and the cover plate 32 is connected to the housing 11 to cover the opening of the housing 11. The ultrasonic transmitting module 21 is arranged corresponding to the cover plate 32, and is located on the side of the cover plate 32 facing the side wall of the housing 11, and the ultrasonic receiving module 22 is located on the side of the display component 31 away from the cover plate 32. Since the internal structure of the cover plate 32 is relatively uniform relative to the internal space of the wearable device 100, and the ultrasonic signal propagates in a relatively uniform medium, the ultrasonic receiving module 22 can receive the penetration signal, and the ultrasonic receiving module 22 has a higher sensitivity to receive the penetration signal, and the ultrasonic transmitting module 21 can still reflect and refract a certain ultrasonic signal through the cover plate 32 and penetrate the display module 3, while ensuring that the ultrasonic transmitting module 21 can transmit the ultrasonic signal that penetrates the display module 3, it can also enable the ultrasonic receiving module 22 to receive the penetration signal, thereby improving the accuracy and sensitivity of the wearable device 100 to signal recognition.

[0162] Please also read Figures 14 to 17 , wherein the dotted arrows in the figure are the transmitting direction and the receiving direction of the ultrasonic signal, respectively. In some embodiments, when the ultrasonic transmitting module 21 is located on the side where the side wall of the housing 11 is located, the ultrasonic receiving module 22 is located on the side where the bottom wall of the housing 11 is located and is arranged close to the ultrasonic transmitting module 21. In this way, the ultrasonic transmitting module 21 and the ultrasonic receiving module 22 are arranged relatively close to each other, which is conducive to improving the structural compactness and space utilization of the wearable device 100.

[0163] Optionally, when the ultrasonic receiving module 22 is arranged close to the ultrasonic transmitting module 21, the ultrasonic module 2 further includes a reflector 23, which is arranged between the ultrasonic receiving module 22 and the ultrasonic transmitting module 21, and the reflector 23 is configured to reflect at least part of the ultrasonic signal to the ultrasonic receiving module 22. By providing the reflector 23, the reflection path of the ultrasonic signal can be shortened, and the ultrasonic transmitting module 21 and the ultrasonic receiving module 22 can be arranged more compactly, thereby effectively improving the response efficiency and space utilization of the wearable device 100.

[0164] Optionally, the display module 3 includes a display component 31 and a cover plate 32, the cover plate 32 is arranged on the display component 31, and the cover plate 32 is connected to the housing 11 to cover the opening of the housing 11. The ultrasonic transmitting module 21 is arranged corresponding to the cover plate 32, and is located on the side of the cover plate 32 facing the side wall of the housing 11, the ultrasonic receiving module 22 is located on the side of the display component 31 away from the cover plate 32, and the reflector 23 is arranged in the cover plate 32. Therefore, the ultrasonic module 2 is arranged corresponding to the display module 3, and the reflector 23 is arranged on the cover plate 32 to realize the reflection of the ultrasonic signal, which can make the internal structure of the wearable device 100 more compact, and reflect the ultrasonic signal emitted by the ultrasonic transmitting module 21 to the ultrasonic receiving module 22, so as to improve the internal space utilization of the wearable device 100 and the real-time performance of signal transmission.

[0165] Optionally, the inclination angle of the reflective surface of the reflector 23 relative to the receiving direction of the ultrasonic receiving module 22 is 20°-60°. For example, the inclination angle of the reflective surface of the reflector 23 relative to the receiving direction of the ultrasonic receiving module 22 may include but is not limited to 20°-30°, 30°-40°, 40°-50° or 50°-60°. Exemplarily, the inclination angle of the reflecting surface of the reflector 23 relative to the receiving direction of the ultrasonic receiving module 22 may include but is not limited to 20°, 21°, 22°, 23°, 24°, 25°, 26°, 27°, 28°, 29°, 30°, 31°, 32°, 33°, 34°, 35°, 36°, 37°, 38°, 39°, 40°, 41°, 42°, 43°, 44°, 45°, 46°, 47°, 48°, 49°, 50°, 51°, 52°, 53°, 54°, 55°, 56°, 57°, 58°, 59°, 60°, etc., and the present application does not make any specific limitation on this.

[0166] Such a configuration allows the ultrasonic signal to be received by the ultrasonic receiving module 22 more quickly, allowing the functional module 13 to respond more quickly, thereby improving the response efficiency of the wearable device 100 and sending corresponding information to the land personnel as soon as possible.

[0167] When the inclination angle of the reflecting surface of the reflecting member 23 relative to the receiving direction of the ultrasonic receiving module 22 is less than 20°, the ultrasonic signal emitted by the ultrasonic transmitting module 21 is reflected back to the ultrasonic transmitting module 21 by the reflecting member 23, making it difficult for the ultrasonic receiving module 22 to receive as many ultrasonic signals as possible, reducing the receiving sensitivity of the ultrasonic receiving module 22, and thus reducing the functional response efficiency of the wearable device 100. When the inclination angle of the reflecting surface of the reflecting member 23 relative to the receiving direction of the ultrasonic receiving module 22 is greater than 60°, the ultrasonic signal emitted by the ultrasonic transmitting module 21 is rarely reflected by the reflecting member 23 to the ultrasonic receiving module 22, which also makes it difficult for the ultrasonic receiving module 22 to receive as many ultrasonic signals as possible, which also causes the receiving sensitivity of the ultrasonic receiving module 22 to be reduced, thereby reducing the functional response efficiency of the wearable device 100.

[0168] It is understandable that the positional relationship between the ultrasonic transmitting module 21, the ultrasonic receiving module 22, the housing 11, the cover 32, the display assembly 31, and the reflector 23 includes but is not limited to the following: Figures 14 to 17 In the illustrated embodiments, each embodiment can realize the corresponding transmission of ultrasonic signals penetrating the display module 3 and the reception of ultrasonic signals reflected back by the display module 3, thereby realizing the function control of the wearable device 100.

[0169] For example, Fig.14 As shown, the reflector 23 is arranged on the cover plate 32 , the ultrasonic transmitting module 21 is arranged on the side wall surface of the cover plate 32 facing the side wall of the housing 11 , and the ultrasonic receiving module 22 is arranged on the side surface of the display component 31 away from the cover plate 32 .

[0170] For example, Fig.15 As shown, the reflector 23 is disposed on the cover plate 32 , the ultrasonic transmitting module 21 is disposed on the side wall surface of the cover plate 32 facing the side wall of the housing 11 , and the ultrasonic receiving module 22 is disposed on the bottom wall surface of the housing 11 .

[0171] For example, Fig.16 As shown, the reflector 23 is disposed on the cover plate 32 , and when the ultrasonic transmitting module 21 is disposed on the side wall surface of the side wall of the housing 11 , the ultrasonic receiving module 22 is disposed on the side surface of the display component 31 away from the cover plate 32 .

[0172] For example, Fig.17 As shown, the reflector 23 is disposed on the cover plate 32 , the ultrasonic transmitting module 21 is disposed on the side wall surface of the side wall of the housing 11 , and the ultrasonic receiving module 22 is disposed on the bottom wall surface of the housing 11 .

[0173] It should be noted that the various implementations in the embodiments of the present application are only examples, and other implementations may also be adopted in other alternative solutions. The present application does not impose any special restrictions on this, as long as the above implementations can achieve the purpose of the present application.

[0174] Optionally, the reflective element 23 may include but is not limited to a reflective mirror, a reflective coating or a reflective film layer, and the material of the reflective element 23 may be metal, ceramic, glass, polymer, etc. The reflective element 23 is used to reflect the ultrasonic signal emitted by the ultrasonic transmitting module 21 so that the ultrasonic receiving module 22 can receive as many ultrasonic signals reflected back by the display module 3 as possible, so that the setting position of the ultrasonic transmitting module 21 and the ultrasonic receiving module 22 can be more compact, which is beneficial to improve the internal space utilization of the wearable device 100.

[0175] In some embodiments, the ultrasonic transmitting module 21 includes a first piezoelectric body 211, and the material of the first piezoelectric body 211 includes at least one of quartz crystal, lead zirconate titanate piezoelectric ceramics, lead-free piezoelectric ceramics, and piezoelectric composite materials. Among them, the cost of lead zirconate titanate piezoelectric ceramics is relatively low, which is conducive to reducing the manufacturing cost of the wearable device 100. Moreover, the piezoelectric strain constant of lead zirconate titanate piezoelectric ceramics is relatively large and has good stability, and can generate a large charge output under a small external force, so that the ultrasonic transmitting module 21 can efficiently convert electrical energy and mechanical energy for transmitting a strong ultrasonic signal, thereby improving the transmission efficiency of the ultrasonic transmitting module 21 and reducing energy loss.

[0176] See also Fig.18 Optionally, the ultrasonic transmitting module 21 further includes a first circuit component 212, the first circuit component 212 is electrically connected to the main board 1a, the first piezoelectric body 211 is disposed on the first circuit component 212, and the first piezoelectric body 211 vibrates to enable the first circuit component 212 to transmit an ultrasonic signal and send it to the main board 1a. The first circuit component 212 can be a flexible printed circuit board (FPC). Since the material of the flexible printed circuit board is thin, soft and resistant to bending, the first piezoelectric body 211 can form the ultrasonic transmitting module 21 to prevent the first piezoelectric body 211 from vibrating and causing circuit damage, thereby reducing the failure rate of the ultrasonic transmitting module 21.

[0177] In some embodiments, the ultrasonic receiving module 22 includes a second piezoelectric body 221, and the material of the second piezoelectric body 221 includes at least one of polyvinylidene fluoride and polyvinylidene fluoride-trifluoroethylene copolymer. Among them, the piezoelectric voltage constant of the polyvinylidene fluoride material is relatively large, and it is easier to have a good match with water, air and diving suits (considering that users usually wear diving suits when diving underwater) compared to ordinary piezoelectric materials, and can more effectively couple the received ultrasonic signal from the underwater environment to the inside of the ultrasonic receiving module 22, reduce the loss of the ultrasonic signal during the propagation process, and thus improve the receiving efficiency and sensitivity of the ultrasonic receiving module 22. In addition, polyvinylidene fluoride has good wear resistance and stability in high-pressure environments, so that polyvinylidene fluoride can maintain a good ultrasonic signal receiving effect during long-term use.

[0178] See also Fig.19 Optionally, the ultrasonic receiving module 22 further includes a second circuit component 222, the second circuit component 222 is electrically connected to the main board 1a, the second piezoelectric body 221 is disposed on the second circuit component 222, and the second piezoelectric body 221 vibrates so that the second circuit component 222 receives the ultrasonic signal and sends it to the main board 1a. The second circuit component 222 can be a flexible circuit board. Since the material of the flexible circuit board is thin, soft and resistant to bending, the second circuit component 222 can be combined with the second piezoelectric body 221 to form the ultrasonic receiving module 22, thereby preventing the second piezoelectric body 221 from vibrating and causing circuit damage, thereby reducing the failure rate of the ultrasonic receiving module 22.

[0179] Optionally, the thickness of the first piezoelectric body 211 may be greater than the thickness of the second piezoelectric body 221. Since the piezoelectric material of the second piezoelectric body 221 may be polyvinylidene fluoride material, the thinner the thickness of this material, the better its electrical and piezoelectric properties, and the ultrasonic receiving module 22 is mostly set close to the bottom side wall of the housing 11 or one side of the display module 3, and the space at these locations is relatively small, reducing the thickness of the second piezoelectric body 221 can make the setting method of the ultrasonic receiving module 22 more flexible. The piezoelectric material of the first piezoelectric body 211 can be lead zirconate titanate piezoelectric ceramics. Since the ultrasonic transmitting module 21 requires strong penetration ability, as well as good mechanical strength and durability, the thickness of the first piezoelectric body can be selected to be relatively thick.

[0180] Optionally, the thickness of the first piezoelectric body 211 is 0.05mm-0.20mm. For example, the thickness of the first piezoelectric body 211 may include but is not limited to 0.05mm-0.08mm, 0.08mm-0.11mm, 0.11mm-0.14mm, 0.14mm-0.17mm or 0.17mm-0.20mm. Exemplarily, the thickness of the first piezoelectric body 211 may include but is not limited to 0.05mm, 0.06mm, 0.07mm, 0.08mm, 0.09mm, 0.10mm, 0.11mm, 0.12mm, 0.13mm, 0.14mm, 0.15mm, 0.16mm, 0.17mm, 0.18mm, 0.19mm, 0.20mm, etc., which is not specifically limited in the embodiments of the present application.

[0181] It can be understood that when the thickness of the first piezoelectric body 211 is less than 0.05 mm, due to the brittleness of the piezoelectric material, this will cause the mechanical strength of the first piezoelectric body 211 to decrease, increase the risk of fracture of the first piezoelectric body 211, and reduce the reliability of the ultrasonic transmitting module 21. In addition, it will also cause the sensitivity of the first piezoelectric body 211 to decrease, thereby affecting the power output of the ultrasonic transmitting module 21; when the thickness of the first piezoelectric body 211 is greater than 0.20 mm, the power capacity of the first piezoelectric body 211 is too large, and the voltage and current that can be withstood are also too large, which will cause the mechanical stress of the first piezoelectric body 211 to be more concentrated, increase the risk of damage or failure of the first piezoelectric body 211, and reduce the reliability of the ultrasonic transmitting module 21. In addition, the excessive thickness of the first piezoelectric body 211 increases the overall size and weight of the ultrasonic transmitting module 21, thereby reducing the space utilization of the wearable device 100.

[0182] Optionally, the thickness of the second piezoelectric body 221 is 5um-20um. For example, the thickness of the second piezoelectric body 221 may include but is not limited to 5mm-8mm, 8mm-11mm, 11mm-14mm, 14mm-17mm or 17mm-20mm. Exemplarily, the thickness of the second piezoelectric body 221 may include but is not limited to 5mm, 5.5mm, 6mm, 6.5mm, 7mm, 7.5mm, 8mm, 8.5mm, 9mm, 9.5mm, 10mm, 10.5mm, 11mm, 11.5mm, 12mm, 12.5mm, 13mm, 13.5mm, 14mm, 14.5mm, 15mm, 15.5mm, 16mm, 16.5mm, 17mm, 17.5mm, 18mm, 18.5mm, 19mm, 19.5mm, 20mm, etc., which is not specifically limited in the embodiments of the present application.

[0183] It can be understood that when the thickness of the second piezoelectric body 221 is less than 5um, due to the brittleness of the piezoelectric material, this will cause the mechanical strength of the second piezoelectric body 221 to decrease, increase the risk of the second piezoelectric body 221 breaking, and reduce the reliability of the ultrasonic transmitting module 21. In addition, it will also cause the sensitivity of the second piezoelectric body 221 to decrease, thereby affecting the power output of the ultrasonic receiving module 22; when the thickness of the second piezoelectric body 221 is greater than 20um, the power capacity of the second piezoelectric body 221 is too large, and the voltage and current that can be tolerated are also too large, which will cause the mechanical stress of the second piezoelectric body 221 to be more concentrated, increase the risk of damage or failure of the second piezoelectric body 221, and reduce the reliability of the ultrasonic receiving module 22. In addition, the excessive thickness of the second piezoelectric body 221 increases the overall size and weight of the ultrasonic receiving module 22, thereby reducing the space utilization of the wearable device 100.

[0184] It can be understood that the shapes of the first piezoelectric body 211 and the second piezoelectric body 221 of the present application can be rectangular, square, circular, diamond, etc., and the embodiments of the present application are not limited to this.

[0185] See also Fig. 20 In a second aspect, an embodiment of the present application discloses a control method for a wearable device 100, wherein the wearable device 100 is the wearable device 100 of the first aspect, and the control method includes:

[0186] 401. The mainboard controls the ultrasonic module to transmit and receive ultrasonic signals according to the current underwater environmental parameters of the wearable device and / or human physiological parameters detected by the sensor module.

[0187] Among them, the underwater environmental parameters refer to the underwater environmental parameters of the wearable device 100 currently located detected by the sensor module 14, such as underwater depth, underwater pressure, underwater flow rate, underwater temperature, underwater turbidity, etc.

[0188] In addition, human physiological parameters refer to the current human physiological parameters detected by the sensor module 14 when the user wears the wearable device 100, such as body temperature, heart rate, respiration, blood pressure, blood oxygen saturation, etc.

[0189] 402. The mainboard controls the functional module to execute corresponding functions according to the target ultrasonic signal.

[0190] It can be understood that when the mainboard 1a of the wearable device 100 matches the preset values ​​according to the current underwater environmental parameters and / or human physiological parameters of the wearable device 100 detected by the sensor module 14, the mainboard 1a can control the ultrasonic module 2 to transmit and receive ultrasonic signals. When the ultrasonic wave received by the mainboard 1a changes, that is, the target ultrasonic signal is received, the functional module 13 can be controlled to perform a corresponding function according to the target ultrasonic signal. The target ultrasonic signal refers to: an ultrasonic signal corresponding to a preset ultrasonic signal is received, that is, the preset ultrasonic signal refers to an ultrasonic signal of a preset threshold.

[0191] For example, taking the wearable device as a diving watch, when the user wears the wearable device 100 of the embodiment of the present application, the sensor module 14 of the wearable device 100 continuously detects the current underwater environmental parameters and / or human physiological parameters. When the mainboard 1a receives the underwater environmental parameters or human physiological parameters consistent with the preset values, the mainboard 1a controls the ultrasonic module 2 to transmit and receive ultrasonic signals. When the user needs to use a certain function on the wearable device 100, the user changes the ultrasonic signal by triggering the specified operation on the wearable device 100. The mainboard 1a compares the received ultrasonic signal with the preset value signal. When the received ultrasonic signal is consistent with the set ultrasonic signal, the received ultrasonic signal is the target ultrasonic signal, and the mainboard 1a controls the functional module 13 to perform the corresponding function according to the target ultrasonic signal.

[0192] Among them, the main board 1a controls the functional module 13 to perform corresponding functions according to the target ultrasonic signal, and the functions may include but are not limited to sending distress information, sending location information, sending image information, etc. to land personnel.

[0193] It can be seen that the present application uses the mainboard 1a to control the ultrasonic module 2 to transmit and receive ultrasonic signals according to the current underwater environmental parameters and / or human physiological parameters of the wearable device 100 detected by the sensor module 14, and then the mainboard 1a controls the functional module 13 to perform corresponding functions according to the target ultrasonic signal. Since the user can perform specified operations on the wearable device 100 (such as touching the wearable device 100, holding the wearable device 100, etc.) to change the ultrasonic signal, the wearable device 100 can realize the function control of the wearable device 100 without setting buttons. Such a design is not only convenient for user operation, but also because the ultrasonic signal has a fast transmission speed and high reliability, and no additional buttons are required, it can effectively improve the real-time signal transmission of the wearable device 100 and the sealing and waterproof performance of the wearable device 100 itself.

[0194] It can be understood that the wearable device 100 control method provided in the embodiment of the present application changes the ultrasonic signal by the user performing specified operations on the wearable device 100, so that the wearable device 100 can realize function control of the wearable device 100 without setting buttons, which is convenient for user operation, and the ultrasonic signal has a fast transmission speed and high reliability, thereby effectively improving the real-time transmission performance and waterproof performance of the wearable device 100 at the same time.

[0195] Among them, the designated operation may include but is not limited to touching the wearable device 100 or holding the wearable device 100, such as touching the display module 3 of the wearable device 100 or touching the outer periphery of the shell 11 of the wearable device 100. Holding the wearable device 100 may, for example, be holding the shell 11 of the wearable device 100 or holding the display module 3 of the wearable device 100.

[0196] In addition, it should be noted that in order to cope with the complex underwater environment, the diving suits usually worn by users need to have functions such as waterproof, cold-proof, protective and comfortable. The materials of the diving suits include but are not limited to synthetic fibers such as chloroprene rubber, silicone, polyurethane, nylon and polyester. Therefore, the acoustic impedance of the diving suit material is low, while the acoustic impedance of the cover plate 32 of the display module 3 is large, and the acoustic impedances of the two differ greatly. When the user touches the cover plate 32 of the display module 3 with the finger wearing the diving suit, the ultrasonic signal will be refracted or reflected in different media, and part of the ultrasonic signal emitted by the ultrasonic transmitting module 21 will be refracted into the gloves of the diving suit, but because of its low acoustic impedance, a large part of the ultrasonic signal can be reflected and then received by the ultrasonic receiving module 22, so that the wearable device 100 has better receiving sensitivity to the ultrasonic signal and is easier to identify, thereby effectively improving the reliability of the wearable device 100.

[0197] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A wearable device, used in an underwater environment, characterized in that: include: The device body includes a housing, a main board, a functional module, an ultrasonic module and a sensor module. The main board, the functional module, the ultrasonic module and the sensor module are all arranged in the housing, and the functional module, the ultrasonic module and the sensor module are all electrically connected to the main board; The sensor module is configured to detect current underwater environmental parameters and / or human physiological parameters of the wearable device and send them to the mainboard; The mainboard is configured to control the ultrasonic module to transmit and receive ultrasonic signals according to the received underwater environmental parameters and / or the human physiological parameters; The main board is also configured to control the functional module to perform corresponding functions according to the target ultrasonic signal.

2. The wearable device according to claim 1, characterized in that: The mainboard is further configured to determine whether a change in the received ultrasonic signal reaches a preset threshold when the ultrasonic module transmits and receives the ultrasonic signal; The main board is also configured to control the functional module to execute a corresponding function if the ultrasonic signal changes to a preset threshold.

3. The wearable device according to claim 1, characterized in that: The functional module includes a communication module, the communication module is arranged in the housing and electrically connected to the mainboard, and the communication module establishes a communication connection with the terminal device, the mainboard is configured to generate a functional signal according to the target ultrasonic signal, and control the communication module to send information corresponding to the functional signal to the terminal device; and / or, The functional module includes a communication module and a camera module. The camera module is disposed in the shell and electrically connected to the mainboard. The mainboard is configured to control the camera module to collect image information according to the target ultrasonic signal, and control the communication module to send the image information to the terminal device.

4. The wearable device according to any one of claims 1 to 3, characterized in that: The wearable device also includes a touch unit, the ultrasonic signal is transmitted toward the touch unit, and the touch unit is configured to receive a touch action of the user to reflect at least part of the ultrasonic signal.

5. The wearable device according to claim 4, characterized in that: The touch sensing unit includes a display module, and the display module is arranged on the housing; The ultrasonic module includes an ultrasonic transmitting module and an ultrasonic receiving module, wherein the ultrasonic transmitting module is used to transmit an ultrasonic signal penetrating the display module, and the ultrasonic receiving module is used to receive an ultrasonic signal reflected by the display module; The display module is configured to be touched to reflect at least a portion of the ultrasonic signal.

6. The wearable device according to claim 5, characterized in that: The ultrasonic transmitting module and the ultrasonic receiving module are arranged facing each other; and / or, The transmitting direction of the ultrasonic transmitting module intersects with the receiving direction of the ultrasonic receiving module.

7. The wearable device according to claim 6, characterized in that: The display module includes a display assembly and a cover plate, wherein the cover plate is disposed on the display assembly and connected to the housing to cover an opening of the housing; The ultrasonic transmitting module is arranged corresponding to the cover plate and is located on a side of the cover plate facing the side wall of the housing, and the ultrasonic receiving module is located on a side of the display component away from the cover plate.

8. The wearable device according to claim 7, characterized in that: When the ultrasonic receiving module is arranged close to the ultrasonic transmitting module, the ultrasonic module also includes a reflector, which is arranged between the ultrasonic receiving module and the ultrasonic transmitting module, and the reflector is arranged in the cover plate, and the reflector is configured to reflect at least part of the ultrasonic signal to the ultrasonic receiving module.

9. The wearable device according to claim 8, characterized in that: The reflection surface of the reflection element has an inclination angle of 20°-60° relative to the receiving direction of the ultrasonic receiving module.

10. The wearable device according to claim 5, characterized in that: The ultrasonic transmitting module includes a first piezoelectric body, and the material of the first piezoelectric body includes at least one of quartz crystal, lead zirconate titanate piezoelectric ceramics, lead-free piezoelectric ceramics and piezoelectric composite materials; and / or, The ultrasonic receiving module includes a second piezoelectric body, and a material of the second piezoelectric body includes at least one of polyvinylidene fluoride and polyvinylidene fluoride-trifluoroethylene copolymer.

11. The wearable device according to claim 10, characterized in that: The thickness of the first piezoelectric body is greater than the thickness of the second piezoelectric body; and / or, The thickness of the first piezoelectric body is 0.05 mm-0.20 mm; and / or, The thickness of the second piezoelectric body is 5um-20um.

12. The wearable device according to any one of claims 1 to 3, characterized in that: The wearable device includes any one of an underwater watch, an underwater swimming goggles, and an underwater bracelet.

13. A control method for a wearable device, characterized in that: The wearable device is a wearable device according to any one of claims 1 to 12, and the control method comprises: The mainboard controls the ultrasonic module to transmit and receive ultrasonic signals according to the current underwater environmental parameters and / or human physiological parameters of the wearable device detected by the sensor module; The mainboard controls the functional module to perform corresponding functions according to the target ultrasonic signal.

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