A multi-modal smart wearable device

Abstract

The present application relates to the technical fields, especially to a multi-modal intelligent wearable device, which comprises a main body, the main body is provided with a wearing space and a sound outlet, wherein the multi-modal intelligent wearable device is configured to be capable of switching between a first size state and a second size state or being used respectively; in the first size state, a user's arm or finger can be accommodated in the wearing space to realize wearing fixation of the main body relative to the user's limb; in the second size state, at least part of the structure of the main body can be placed in the user's concha cavity, and the sound outlet is arranged towards the user's external auditory canal to output sound to the user. The device adopts a highly integrated monomer structure design, can switch between the first size state and the second size state or be used independently according to the user's demand, so as to realize seamless fusion of the motion health monitoring and audio interaction functions.

Description

Technical Field

[0001] This invention relates to the field of smart wearable technology, and in particular to a multimodal smart wearable device. Background Technology

[0002] As smart terminals evolve towards lighter weight, integration, and scene adaptability, the form and functional boundaries of wearable devices are constantly expanding. In existing products, wrist-worn devices (such as smart rings and bracelets) typically form a wearing structure around the fingers or wrist, facilitating the collection of multi-dimensional data such as motion and physiological data; while ear-worn devices (such as smart headphones) rely on their in-ear structure to achieve audio playback or voice interaction. These two types of devices differ significantly in usage scenarios and functional focuses, and due to their fixed structural designs, they are difficult to be compatible with each other and cannot meet the needs of multi-scenario adaptation. Summary of the Invention

[0003] This invention provides a multimodal smart wearable device that solves the technical problem that existing smart wearable products cannot meet the requirements of multi-scenario adaptation.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A multimodal smart wearable device, comprising: The main body integrates an audio output module, a voice acquisition module, a physiological signal sensing module, a motion sensing module, a wireless communication module, a power management module, and a control processing module. A sound outlet is provided on the main body; An adjustment component is movably connected to the main body, and the main body and / or the adjustment component are bent toward each other, so that a wearable space of variable size is formed between the main body and the adjustment component; The adjustment component can be activated to change the relative position or angle between the main body and the adjustment component, thereby adjusting the size of the wearable space. The wearable space has a first size that is adapted to the circumference of a human finger and a second size that is adapted to hold a human ear. In the second size state, at least a portion of the structure of the main body is configured to be placed within the user's concha cavity, and the sound outlet faces the user's external auditory canal.

[0005] Furthermore, The audio output module includes a speaker, and the acoustic outlet of the speaker is connected to the sound outlet. The voice acquisition module includes a microphone; The physiological signal sensing module includes a photoplethysmography (PPG) sensor, a temperature sensor, and / or a skin impedance sensor, and the physiological signal sensing module is disposed on the inner surface of the main body facing the wearable space. The motion sensing module includes an accelerometer and / or a gyroscope; The wireless communication module is used for data interaction with external devices; The power management module includes a rechargeable battery and a charging interface or a wireless charging coil. The control processing module is electrically connected to the audio output module, voice acquisition module, physiological signal sensing module, motion sensing module and wireless communication module, respectively.

[0006] Furthermore, the wearable space has an adjustable opening width; In the first size state, the opening width can be adjusted from 0mm to 25mm, where 0mm corresponds to the closed state where the ends of the main body and the adjustment component abut or overlap each other. In the second size state, the opening width can be adjusted from 15mm to 35mm to accommodate the clamping thickness of the human ear.

[0007] Furthermore, the adjustment assembly includes an elastic reset member configured to provide an elastic force so that the adjustment assembly tends to reduce the wearable space.

[0008] Furthermore, the adjustment component includes a first telescopic member connected to the main body and a second telescopic member that slides with the first telescopic member, and sliding the second telescopic member can control the size of the wearable space.

[0009] Furthermore, the adjustment assembly also includes a limiting structure disposed between the first telescopic member and the second telescopic member. The limiting structure includes a plurality of limiting grooves disposed on the first telescopic member and disposed along the sliding direction of the second telescopic member, and a limiting protrusion disposed on the second telescopic member that engages with the limiting grooves.

[0010] Furthermore, the adjustment component includes a first rotating member connected to the main body and a second rotating member rotatably connected to the first rotating member, and rotating the second rotating member can control the size of the wearable space.

[0011] Furthermore, the adjustment assembly also includes a torsion spring structure disposed between the first rotating member and the second rotating member, the torsion spring structure being used to keep the second rotating member tending to move closer to the main body.

[0012] Furthermore, a battery compartment is provided on the side of the adjustment component away from the main body, and the battery compartment is used to supply power to the main body.

[0013] Furthermore, the surface of the main body and / or the adjustment component is covered with a soft adhesive layer.

[0014] The beneficial effects of this invention are: Firstly, the multimodal smart wearable device provided by this invention, through the movable connection between the main body and the adjustment components and the variable wearable space design, successfully achieves multiple functions in one device: "ring monitoring" and "ear-worn audio," significantly improving the utilization rate and portability of the device. This structure allows users to flexibly switch the device to a first size state that adapts to the circumference of the finger or a second size state that adapts to the ear, completely solving the pain points of device redundancy, inconvenience in carrying, and cumbersome charging caused by users having to wear a smart ring and Bluetooth headphones at the same time. A single device can seamlessly meet the dual needs of high-precision health monitoring and high-quality audio interaction.

[0015] Secondly, by highly integrating multi-functional modules such as physiological signal sensing, motion sensing, audio output, and wireless communication within the main body, this device breaks down the data silos of single-function devices, achieving full-scenario data fusion and intelligent interaction. In finger mode, the device can utilize the rich capillary network of the fingers for high-precision heart rate and blood oxygen monitoring; in ear-wear mode, it can combine the motion sensing module to detect head posture for gesture control, and work with the voice acquisition module to achieve clear calls. This deep integration of multi-modal sensors provides a rich and multi-dimensional data foundation for health algorithm analysis and diversified human-computer interaction, greatly expanding the application boundaries of smart wearable devices. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the first wearable state structure of the present invention; Figure 2 for Figure 1 Internal structure diagram; Figure 3 This is a schematic diagram of the second wearable state structure of the present invention; Figure 4 This is a diagram showing the connection framework of the various functional modules of the present invention.

[0018] Explanation of reference numerals in the attached drawings: 10. Main body; 11. Wearable space; 12. Sound outlet; 13. Battery compartment; 14. Soft rubber layer; 15. Elastic reset component; 20. Adjustment component; 21. First telescopic component; 22. Second telescopic component; 23. Limiting structure; 231. Limiting groove; 232. Limiting protrusion; 30. Control processing module; 40. Audio output module; 50. Voice acquisition module; 60. Physiological signal sensing module; 70. Motion sensing module; 80. Wireless communication module; 90. Power management module. Detailed Implementation

[0019] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0020] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0022] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0023] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0024] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0025] Example like Figures 1 to 3 As shown, the present invention provides a multimodal smart wearable device, comprising a main body 10, on which a wearing space 11 and a sound outlet 12 are provided. The multimodal smart wearable device is configured to switch between a first wearing state and a second wearing state, or to be used separately. In the first wearing state, the user's arm or fingers can be accommodated within the wearing space 11 to achieve a fixed fit of the main body 10 relative to the user's limb. In the second wearing state, at least a portion of the structure of the main body 10 can be placed within the user's concha, and the sound outlet 12 is positioned facing the user's external auditory canal to output sound to the user. This device adopts a highly integrated monolithic structure design, enabling form switching between the first wearing state (hand-worn mode) and the second wearing state (ear-worn mode) or independent use according to user needs, thereby achieving a seamless integration of sports and health monitoring and audio interaction functions.

[0026] In this embodiment, combined with Figure 4 The functional module connection framework diagram shows that the main body 10 integrates at least one of the following functional modules: The audio output module 40 includes a speaker, the acoustic outlet of which is connected to the sound outlet 12, for outputting sound to the user's external auditory canal in the second wearable state; The voice acquisition module 50 includes a microphone for picking up user voice or ambient sound; The physiological signal sensing module 60 includes a photoplethysmography (PPG) sensor, a temperature sensor, and / or a skin impedance sensor, for collecting the user's physiological parameters in the first wearable state. Motion sensing module 70, including accelerometer and / or gyroscope, is used to detect the attitude, gesture or motion state of the device; The wireless communication module 80 is used for data interaction with external devices; The power management module 90 includes a rechargeable battery and a charging interface or wireless charging coil; The control processing module 30 is used to run control logic and process sensor data and audio signals.

[0027] Specifically, the main body 10 is the core supporting component of the device, which integrates a control processing module 30, a power management module 90, a wireless communication module 80, a motion sensing module 70, a physiological signal sensing module 60, a voice acquisition module 50, and an audio output module 40. Each module is electrically connected to the control processing module 30 through a flexible circuit board (FPC) or a rigid-flexible composite board to achieve efficient data transmission and power consumption optimization.

[0028] The audio output module 40 includes a speaker, the acoustic outlet of which is directly connected to the sound outlet 12 via an internal acoustic conduit. This module is mainly used to output sound (such as music, voice calls, and prompts) to the user's external ear canal in the second wearing state. To prevent false sounds or sound leakage interference in the first wearing state (wrist-worn), the control processing module 30 is configured to drive the speaker only when the motion sensing module 70 detects that the device posture matches the ear-worn characteristics, or receives a clear audio playback command.

[0029] The voice acquisition module 50 includes a microphone, which is disposed on the outer surface of the main body 10, near the sound outlet 12 or with a separate pickup hole. The voice acquisition module 50 is used to pick up user voice or ambient sound in two states. In the second wearable state, it utilizes the near-field advantage of the ear combined with a noise reduction algorithm to achieve clear communication; in the first wearable state, it is used to receive the user's far-field voice commands (such as waking up an assistant).

[0030] The physiological signal sensing module 60 includes a photoplethysmography (PPG) sensor, a temperature sensor, and / or a skin impedance sensor. These sensor arrays are centrally located on the surface (i.e., the contact surface) of the main body 10 facing inwards towards the wearing space 11. The physiological signal sensing module is specifically designed to acquire the user's physiological parameters in the first wearing state. When the user's fingers or arm are contained within the wearing space 11, the sensors are in close contact with the skin, acquiring data such as heart rate, blood oxygen, and body surface temperature in real time. In the second wearing state, due to the removal of skin contact, the module automatically enters a low-power sleep mode or switches to an auxiliary detection mode to conserve power.

[0031] The motion sensing module 70 includes an accelerometer and / or a gyroscope, and is built into the body 10 near its center of gravity. The motion sensing module 70 is used to detect the device's posture, gestures, or motion state. In the first wearable state, it mainly recognizes fine gestures (such as pinching or rotating the wrist) to convert them into control commands; in the second wearable state, it mainly detects changes in head posture (such as nodding or shaking the head) and motion vibrations to assist in audio stabilization or motion-sensing interaction.

[0032] The wireless communication module 80 is used for data interaction with external devices (such as smartphones and cloud servers). This module uses protocols such as Bluetooth Low Energy to upload physiological data and gesture commands, and to receive audio streams and control commands. It maintains an uninterrupted connection during state transitions.

[0033] The power management module 90 includes a rechargeable battery and a charging interface or wireless charging coil. The battery shape is customized according to the internal space of the main body 10. The power management module 90 works in conjunction with the control processing module 30 to implement differentiated power strategies: low-frequency sampling of sensors in the first wearable state to extend standby time; and providing high current to drive the speaker in the second wearable state.

[0034] The control processing module 30 is used to run control logic and process sensor data and audio signals. This module acts as the "brain" of the device, running multimodal state machine logic. It integrates the posture data from the motion sensing module 70 and the contact state from the physiological signal sensing module 60 in real time, automatically determines whether it is currently in the first or second wearing state, and dynamically schedules the working modes of the above-mentioned functional modules (such as turning sensors on / off, switching audio algorithms, and adjusting power consumption strategies).

[0035] In operation, the user wears the device on their finger, with the main body 10 forming a wearing space 11. At this time, the physiological signal sensing module 60 continuously monitors the heart rate while in close contact with the skin; the motion sensing module 70 detects the gesture of "thumb and forefinger pinching," and the control processing module 30 recognizes this gesture as a "play / pause" command, sending it to the mobile phone via the wireless communication module 80. In this state, the audio output module 40 remains silent to avoid interference. When the user receives an incoming call, they directly remove the device from their finger and wear it on their ear, with part of the main body 10 entering the concha cavity and the sound outlet 12 aligned with the ear canal. The motion sensing module 70 detects a drastic change in posture and stabilizes it in the ear position, while the physiological signal sensing module 60 detects a signal indicating detachment from the skin. The control processing module 30 then determines that the device has entered a second wearing state and performs the following operations: Turn off high-frequency sampling of the physiological signal sensing module 60; Start the audio output module 40 and play a ringtone through the sound outlet 12; Activate the call noise reduction algorithm of the voice acquisition module 50.

[0036] Users can answer calls via voice or head movements, achieving a seamless switch from wearing it on their wrist to wearing it in their ear.

[0037] like Figures 1 to 3 As shown, the multimodal smart wearable device further includes an adjustment component 20, which is movably connected to the main body 10. The main body 10 and / or the adjustment component 20 are bent towards each other, forming a wearable space 11 between them. By moving the adjustment component 20, the relative position or angle between the main body 10 and the adjustment component 20 can be changed, thereby adjusting the size of the wearable space 11 and allowing the multimodal smart wearable device to present either a first wearable state or a second wearable state. In the first wearable state, the main body 10 and the adjustment component 20 are configured to jointly surround the user's fingers. In the second wearable state, at least a portion of the main body 10 is located within the user's concha, and the adjustment component 20 is located between the user's auricle and head, with the adjustment component 20 cooperating with the main body 10 to clamp the user's auricle. This application, by setting an adjustment component 20 movably connected to the main body 10, utilizes the main body 10 and the adjustment component 20 bending towards each other to form a dynamically adjustable wearable space 11. This creatively achieves seamless switching between a single device in a first wearing state (finger-worn) and a second wearing state (ear-clamped). This not only breaks down the functional barriers between traditional hand-worn monitoring devices and ear-worn audio devices, allowing users to simultaneously monitor health and engage in audio interaction without carrying multiple devices, significantly reducing carrying burden; but also, this adjustable structure can adapt to differences in finger size and ear shape among different users, avoiding size-dependent issues. The design addresses issues such as tight fit or slippage, improving comfort and versatility for long-term wear. In ear-worn mode, a dual mechanical support mechanism—with the main body 10 embedded in the concha and the adjustment component 20 clamping the auricle and head—creates a stable clamping structure, effectively solving the problem of device detachment during vigorous exercise. It also ensures tight acoustic coupling between the sound outlet 12 and the ear canal to optimize sound quality and noise reduction, as well as close contact between the sensor and the skin to guarantee the accuracy of physiological signal acquisition. Thus, it provides users with an intelligent wearable solution that integrates high stability, high comfort, multi-functional integration, and a smooth, seamless switching experience.

[0038] like Figures 1 to 3As shown, the adjustment component 20 includes an elastic reset member 15, which is configured to provide an elastic force to give the adjustment component 20 a tendency to reduce the wearing space 11. Specifically, the elastic reset member 15 is disposed at the connection between the main body 10 and the adjustment component 20 or in the internal cavity. The elastic reset member 15 may be a titanium wire, which is preloaded or configured to provide a continuous elastic restoring force. The direction of this elastic force is always directed towards bringing the end of the main body 10 and the end of the adjustment component 20 closer together, thus giving the adjustment component 20 a tendency to reduce the wearing space 11. When the user unfolds the device and slips it onto their finger, the elastic reset member 15 continuously applies a rebound force, forcing the adjustment component 20 to move closer to the main body 10. When the user wears the device on their ear, the contraction tendency provided by the elastic reset member 15 is converted into a constant clamping force on the ear. By reasonably selecting the stiffness coefficient (spring stiffness) of the elastic reset member 15, the clamping force is sufficient to resist the inertial force generated by gravity and head movement (preventing slippage) and will not exceed the pain threshold of the human ear skin (ensuring comfort during long-term wear). Even if the material undergoes slight creep due to prolonged wear, the elastic reset member 15 can immediately compensate for the displacement and maintain the stability of the clamping force.

[0039] In one embodiment, such as Figures 1 to 3 As shown, the adjustment component 20 includes a first telescopic member 21 connected to the main body 10 and a second telescopic member 22 slidably engaged with the first telescopic member 21. Sliding the second telescopic member 22 controls the size of the wearing space 11. Specifically, one end of the first telescopic member 21 is fixedly connected to the main body 10 (or fixed by a non-removable hinge), and the other end forms a hollow cavity or guide rail structure. The first telescopic member 21 is preferably made of lightweight, high-strength engineering plastic or aluminum alloy, and its inner surface may be provided with anti-slip texture. The second telescopic member 22 is at least partially slidably engaged inside or outside the first telescopic member 21. The second telescopic member 22 is rod-shaped or plate-shaped, and its end is bent to form a contact end for abutting the auricle or fingers. The first telescopic member 21 and the second telescopic member 22 form a sliding pair. By pushing and pulling the second telescopic member 22 axially, the user can change its length extending beyond the first telescopic member 21, thereby changing the overall effective length of the adjustment component 20. In this embodiment, the elastic reset member may be a compression spring sleeved on the sliding shaft or a titanium wire embedded in the first telescopic member 21.

[0040] More specifically, since both the main body 10 and the adjustment component 20 are curved towards each other, the effective length change of the adjustment component 20 directly determines the distance between the end of the main body 10 and the end of the adjustment component 20, thereby adjusting the size of the wearing space 11. When the user pushes the second telescopic member 22 to retract it into the first telescopic member 21, the overall span of the adjustment component 20 decreases, causing the end of the adjustment component 20 to move closer to the main body 10, thus reducing the wearing space 11. This state is suitable for wearing on thinner fingers, or providing greater clamping force in ear-worn mode to fit thinner auricles. When the user pulls the second telescopic member 22 to extend it from the first telescopic member 21, the overall span of the adjustment component 20 increases, and the end of the adjustment component 20 moves away from the main body 10, thereby expanding the wearing space 11. This state is suitable for wearing on thicker fingers, or fitting thicker auricles and sides of the head.

[0041] In this embodiment, to prevent the telescopic components from sliding due to accidental contact during wear, the adjustment assembly 20 further includes a limiting structure 23 disposed between the first telescopic component 21 and the second telescopic component 22. The limiting structure 23 includes a plurality of limiting grooves 231 disposed on the first telescopic component 21 and arranged along the sliding direction of the second telescopic component 22, and limiting protrusions 232 disposed on the second telescopic component 22 that engage with the limiting grooves 231. Specifically, the limiting grooves 231 are disposed on the first telescopic component 21. The limiting grooves 231 are linearly arranged along the sliding direction (i.e., axial direction) of the second telescopic component 22. In this embodiment, the limiting grooves 231 are preferably a series of grooves, blind holes, or stepped notches distributed at equal or unequal intervals along the axial direction. These limiting grooves 231 constitute a discrete sequence of positioning points, corresponding to different size levels of the wearing space 11. The limiting protrusions 232 are disposed on the second telescopic component 22, and their positions correspond to the limiting grooves 231 on the first telescopic component 21. The limiting protrusion 232 is typically a structure with elastic deformation capability, such as an integrally formed elastic barb, a spring-loaded pogo pin, or a protrusion with a bevel. Its shape is designed to achieve a concave-convex fit with the limiting groove 231. When the user adjusts the second telescopic member 22 to a specific position, the limiting protrusion 232 on the second telescopic member 22, under its own elastic force or external pre-tightening force, engages with the corresponding limiting groove 231 on the first telescopic member 21. At this time, the mechanical interference generated by the concave-convex fit restricts the axial movement of the second telescopic member 22 relative to the first telescopic member 21, thereby locking the length of the adjustment assembly 20 and thus fixing the size of the wearing space 11. This locking method effectively resists vibrations and inertial forces during daily activities, preventing the device from loosening on the fingers or weakening its clamping force on the ear. When adjustment is needed, an unlocking operation is performed first, and external force forces the limiting protrusion 232 to undergo elastic deformation (such as the barb being pressed down or the pogo pin being compressed), causing it to disengage from the current limiting groove 231. Then, during the sliding operation, under continuous external force, the second telescopic member 22 slides along the first telescopic member 21, and the limiting protrusion 232 slides through the gap area between the two limiting grooves 231. At this time, the user can hear or feel a slight "click" sound / touch, indicating the gear shift. Finally, during the relocking operation, when the limiting protrusion 232 slides to the next target limiting groove 231 position, the external force is removed, and the limiting protrusion 232 automatically springs back under the action of elasticity and locks into the new limiting groove 231, completing the locking of the new gear position.

[0042] Specifically, in the first wearing state (hand-wearing mode), the user's finger circumference is fixed, but there are significant differences between different fingers or different users. Through the multiple positions provided by the limiting structure 23, the user can precisely adjust the wearing space 11 to best fit their finger size. For example, for a thicker thumb, the second telescopic member 22 can be pulled out to the 5th limiting groove 231; for a thinner little finger, it can be pushed in to the 2nd limiting groove 231. Once locked, even if the finger is violently shaken or sweating reduces the coefficient of friction, the mechanical engagement between the limiting protrusion 232 and the limiting groove 231 prevents the adjustment component 20 from accidentally extending, thus avoiding the device slipping off the finger.

[0043] In the second wearing state (ear-wear mode), the stability of the clamping force directly determines the wearing experience of the headphones. The limiting structure 23 allows users to choose different extension lengths based on the thickness of their ear canal and their individual sensitivity to clamping force. If the user has a thicker ear canal or needs to engage in high-intensity exercise, the second telescopic component 22 can be pulled out to a greater extent, utilizing the bending deformation of the main body 10 and the adjustment component 20 to generate a greater restoring clamping force and lock it in that position. If the user seeks comfort for extended wear, they can choose a smaller extension level to obtain a gentler clamping force. During running or jumping, the headphones are subjected to frequent impacts. The concave-convex fit of the limiting structure 23 provides reliable impact resistance, ensuring that the main body 10 always fits tightly against the concha cavity, the sound outlet 12 does not shift, and guarantees stable sound quality and no sound leakage.

[0044] In other embodiments, the adjustment assembly 20 includes a first rotating member connected to the main body 10 and a second rotating member rotatably connected to the first rotating member. Rotating the second rotating member controls the size of the wearing space 11. Specifically, the adjustment assembly 20 further includes a torsion spring structure disposed between the first and second rotating members, the torsion spring structure being used to keep the second rotating member tending towards the main body 10. One end of the first rotating member is fixedly connected to the main body 10 (or serves as an extension of the main body 10), and the other end is provided with a pivot or hinge. This component constitutes the fixed base of the adjustment assembly 20. One end of the second rotating member is rotatably connected to the first rotating member via a pivot, pin, or bearing structure, forming a movable arm that can rotate relative to it. The end of the second rotating member is bent to abut against the inside of the user's fingers or the back of the ear / side of the head when worn. The torsion spring structure is disposed at the connection between the first and second rotating members (e.g., sleeved on a pivot). The two ends of the torsion spring structure abut against or are fixed to the first and second rotating members, respectively. The torsion spring structure is configured to generate an elastic restoring torque, forcing the second rotating member to always tend to rotate in the direction of the main body 10 (i.e., the closing direction). This means that, without external force, the adjustment component 20 tends to reduce the wearing space 11, bringing the main body 10 and the end of the adjustment component 20 closer together.

[0045] The specific operating principle is as follows: By rotating the second rotating component, the user can change the angle between it and the first rotating component, thereby linearly or non-linearly changing the distance between the main body 10 and the end of the adjustment component 20, i.e., the size of the wearing space 11. First, there is the opening operation: when the user needs to wear the device, they use their hand to pry the second rotating component open outwards, overcoming the spring torque of the torsion spring structure, increasing the angle between the first and second rotating components, thus expanding the wearing space 11 to accommodate fingers or ears. Next is the automatic clamping: once the device is slipped onto a finger or hooked onto an ear, the user removes the external force. At this time, the elastic potential energy stored in the torsion spring structure is released, driving the second rotating component to automatically rotate back towards the main body 10 until it is blocked by the user's limb (finger or ear). Finally, there is the adaptive clamping force: due to the presence of the torsion spring structure, the device applies a continuous, elastic clamping force to the user's limb, rather than a rigid, fixed pressure. This "normally closed" tendency ensures that the device can fit snugly to wearing areas of different sizes.

[0046] In this embodiment, as Figures 1 to 3 As shown, a battery compartment 13 is located on the side of the adjustment component 20 away from the main body 10, and the battery compartment 13 is used to supply power to the main body 10. In this embodiment, the adjustment component 20 not only performs the mechanical functions of adjusting the size of the wearable space 11 and providing clamping force, but also serves as a carrier of the energy module. The battery compartment 13 is located on the side of the adjustment component 20 away from the main body 10. Specifically, if the adjustment component 20 is telescopic, the battery compartment 13 is located at the end or internal cavity of the second telescopic member 22; if the adjustment component 20 is rotatable, the battery compartment 13 is integrated into the arm of the second rotatable member or in the widened area at its end. The battery compartment 13 houses a rechargeable lithium battery or other high-energy-density power module. The battery compartment 13 establishes an electrical connection with the control processing module 30, sensors, and audio unit inside the main body 10 through built-in wires, flexible circuit boards (FPC), or conductive slip rings (for rotatable structures), thereby achieving continuous power supply to the main body 10. The battery compartment 13 features an openable cover or an integrated encapsulated design, facilitating battery replacement (if removable) and charging maintenance. It also boasts excellent waterproof and dustproof performance (e.g., IP67 rating) to withstand sweating during exercise or rain. The internal control processing module 30 monitors the battery status within the battery compartment 13 in real time.

[0047] In this embodiment, the inner surfaces of the main body 10 and / or the adjustment component 20 are covered with a soft adhesive layer 14. Specifically, the soft adhesive layer 14 is preferably made of a skin-friendly, low-allergenic elastomer material, such as liquid silicone (LSR), thermoplastic elastomer (TPE), thermoplastic polyurethane (TPU), or medical-grade rubber. These materials have a soft touch, good resilience, and excellent resistance to sweat corrosion. In the first wearing state (wrist-worn), the inner side of the main body 10 fits snugly against the fingertip; in the second wearing state (ear-worn), the inner side of the main body 10 is embedded in the concha. Therefore, the entire inner arc surface of the main body 10 is covered with the soft adhesive layer 14. In particular, in areas where sensors (such as photoelectric heart rate sensors or electrode pads) are located, the soft adhesive layer 14 needs to be perforated or made of a special light-transmitting / conductive soft adhesive material to ensure that signal acquisition is not obstructed. By covering the inner surfaces of the main body 10 and the adjustment component 20 with a soft adhesive layer 14, this embodiment successfully resolves the contradiction between rigid structures and flexible human tissue. Whether it's the tight wrap around the fingers or the elastic clamping around the ear, the soft rubber layer 14 plays a crucial role in "interface optimization": it serves as a comfortable cushioning pad, a reliable anti-slip layer, and an effective sealing barrier. This design detail greatly enhances the ergonomic performance of multimodal smart wearable devices, enabling them to adapt to different users' skin types and wearing habits, meeting the high standard of comfortable wear in all weather conditions and scenarios.

[0048] In one embodiment, such as Figures 1 to 3 As shown, the main body 10 has an arc-shaped or C-shaped structure. The outer surface of the main body 10 is provided with a sound outlet 12, which communicates with the acoustic outlet of an internal speaker. One end of the adjustment component 20 is movably connected to the main body 10. More specifically, the main body 10 and / or the adjustment component 20 are curved towards each other, forming a variable-sized wearing space 11. The user can change the relative position or angle between the main body 10 and the adjustment component 20 by moving the adjustment component 20 (e.g., sliding, rotating, or pressing), thereby steplessly or progressively adjusting the size of the wearing space 11. The wearing space 11 has a first size state adapted to the circumference of a human finger (equivalent to a first wearing state) and a second size state adapted to hold the human ear (equivalent to a second wearing state).

[0049] When the device is in its first size configuration, it is primarily used for health monitoring when worn on a user's finger (such as the index, middle, or thumb). In this configuration, the opening width D of the wearable space 11 has a wide adjustment range, specifically from 0 mm to 25 mm.

[0050] In the 0mm closed state, the adjustment component 20 is configured to be adjustable to its limit position, such that the end of the main body 10 and the end of the adjustment component 20 abut against each other or even partially overlap, forming a completely closed ring structure (or a nearly closed ring-like structure) between the main body 10 and the adjustment component 20. This closed ring structure has the following significant advantages: First, it eliminates the loosening problem caused by the fixed opening of traditional ring-type devices; when worn, the user can use the elasticity of the device material (such as the skin-friendly soft rubber layer 14 on the inner side) or the pre-tightening force of the adjustment component 20 to forcibly open the originally closed (0mm) or extremely small opening and slip it onto the finger; after wearing, the rebound force (interference fit force) generated by the device will tightly hold the finger, making it less likely to fall off even when the fingers are sweaty or during vigorous exercise. Second, the 0mm closed state effectively prevents dust and moisture from entering the wearing space 11 when not worn, improving the device's protection level (e.g., achieving a high level of waterproof and dustproof standards).

[0051] The 25mm upper limit design ensures that the device can fit fingers of different sizes, including the base of an adult male's thumb. In this state, the control processing module 30 automatically activates the physiological signal sensing module 60, which collects data such as heart rate, blood oxygen, and body temperature through sensors that are in close contact with the finger skin. At the same time, to save power, the audio output module 40 can be automatically turned off or run at low power.

[0052] When the device is in its second size configuration, it is primarily intended to be worn on the user's ear as headphones. In this configuration, the opening width D of the wearing space 11 is adjusted to a range of 15 mm to 35 mm. More specifically, the 15 mm to 35 mm range is primarily set according to ergonomic principles.

[0053] The minimum clamping thickness is 15 mm: This value is set based on the minimum clamping thickness of the human auricle (especially between the antihelix and tragus). If the opening is less than 15 mm, the device will be difficult to clamp onto the auricle, or it may generate excessive clamping force that causes pain to the user.

[0054] Maximum 35 mm: This value covers the maximum clamping span of most adult ear flaps. If the opening is too large, the device will not be able to provide enough clamping force and will slip off.

[0055] In this embodiment, the radius of curvature of the main body 10 corresponding to the concha cavity ranges from 8mm to 14mm. Within this size range, the curvature of the main body 10 is designed to adapt to the anatomical structure of the human concha cavity. When worn, at least a portion of the structure of the main body 10 (including the area containing the sound outlet 12) can penetrate deep into and fit within the user's concha cavity, ensuring that the sound outlet 12 faces the user's external auditory canal, forming good acoustic coupling, improving sound quality, and reducing sound leakage. The adjustment component 20 is located on the back of the auricle (behind the ear) and works with the main body 10 to form a stable clamping force.

[0056] In summary, the multimodal smart wearable device provided in this embodiment, with its variable-form mechanical adjustment, distributed energy layout, intelligent state switching logic, and superior ergonomic design, successfully constructs a new generation of smart terminal that combines high stability, long battery life, strong adaptability, and excellent comfort. It not only expands the application boundaries of wearable devices but also provides users with all-weather, all-scenario health monitoring and audio entertainment services, demonstrating extremely high technological innovation and market promotion value.

[0057] All technical features in this embodiment can be freely combined according to actual needs.

[0058] The rest of this embodiment is the same as that in Embodiment 1. Features not explained in this embodiment are explained using the methods in Embodiment 1, and will not be repeated here.

[0059] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0060] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A multimodal smart wearable device, characterized in that, include: The main body integrates an audio output module, a voice acquisition module, a physiological signal sensing module, a motion sensing module, a wireless communication module, a power management module, and a control processing module. A sound outlet is provided on the main body; An adjustment component is movably connected to the main body, and the main body and / or the adjustment component are bent toward each other, so that a wearable space of variable size is formed between the main body and the adjustment component; The adjustment component can be activated to change the relative position or angle between the main body and the adjustment component, thereby adjusting the size of the wearable space. The wearable space has a first size that is adapted to the circumference of a human finger and a second size that is adapted to hold a human ear. In the second size state, at least a portion of the structure of the main body is configured to be placed within the user's concha cavity, and the sound outlet faces the user's external auditory canal.

2. The multimodal smart wearable device according to claim 1, characterized in that, The audio output module includes a speaker, and the acoustic outlet of the speaker is connected to the sound outlet. The voice acquisition module includes a microphone; The physiological signal sensing module includes a photoplethysmography (PPG) sensor, a temperature sensor, and / or a skin impedance sensor, and the physiological signal sensing module is disposed on the inner surface of the main body facing the wearable space. The motion sensing module includes an accelerometer and / or a gyroscope; The wireless communication module is used for data interaction with external devices; The power management module includes a rechargeable battery and a charging interface or a wireless charging coil. The control processing module is electrically connected to the audio output module, voice acquisition module, physiological signal sensing module, motion sensing module and wireless communication module, respectively.

3. The multimodal smart wearable device according to claim 1, characterized in that: The wearable space has an adjustable opening width; In the first size state, the opening width can be adjusted from 0mm to 25mm, where 0mm corresponds to the closed state where the ends of the main body and the adjustment component abut or overlap each other. In the second size state, the opening width can be adjusted from 15mm to 35mm to accommodate the clamping thickness of the human ear.

4. A multimodal smart wearable device according to claim 1, characterized in that: The adjustment assembly includes an elastic reset member configured to provide an elastic force so that the adjustment assembly tends to reduce the wearable space.

5. A multimodal smart wearable device according to claim 1, characterized in that: The adjustment component includes a first telescopic member connected to the main body and a second telescopic member that slides with the first telescopic member. Sliding the second telescopic member can control the size of the wearable space.

6. A multimodal smart wearable device according to claim 5, characterized in that: The adjustment assembly further includes a limiting structure disposed between the first telescopic member and the second telescopic member. The limiting structure includes a plurality of limiting grooves disposed on the first telescopic member and disposed along the sliding direction of the second telescopic member, and a limiting protrusion disposed on the second telescopic member that engages with the limiting grooves.

7. A multimodal smart wearable device according to claim 1, characterized in that: The adjustment component includes a first rotating member connected to the main body and a second rotating member rotatably connected to the first rotating member. Rotating the second rotating member can control the size of the wearable space.

8. A multimodal smart wearable device according to claim 7, characterized in that: The adjustment assembly further includes a torsion spring structure disposed between the first rotating member and the second rotating member, the torsion spring structure being used to keep the second rotating member tending to move closer to the main body.

9. A multimodal smart wearable device according to claim 1, characterized in that: A battery compartment is provided on the side of the adjustment component away from the main body, and the battery compartment is used to supply power to the main body.

10. A multimodal smart wearable device according to claim 1, characterized in that: The surface of the main body and / or the adjustment component is covered with a soft rubber layer.

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