Data acquisition device and headset

Abstract

The application discloses a data acquisition device and a head-mounted device. The data acquisition device comprises an arc-shaped main body, a rotating piezoelectric component, a driving component, a control module and a data acquisition module; the rotating piezoelectric component is rotatably arranged on the convex side of the arc-shaped main body; the driving component is arranged in the arc-shaped main body and is used for driving the rotating piezoelectric component to rotate relative to the arc-shaped main body; the control module is arranged in the arc-shaped main body and is electrically connected with the driving component and the rotating piezoelectric component, and the control module can control the two ends of the rotating piezoelectric component to simultaneously generate bending deformation towards the convex side or the concave side of the arc-shaped main body; and the data acquisition module is arranged on the arc-shaped main body and is electrically connected with the control module and is used for acquiring external data information. The data acquisition device provided by the application can increase the head support fitting area and guarantee the continuous and stable capture of the head and peripheral external information by the data acquisition module.

Description

Technical Field

[0001] This application belongs to the field of smart wearable device technology, specifically relating to a data acquisition device and a head-mounted device. Background Technology

[0002] Current head-mounted devices typically use a fixed-curvature shell for head data acquisition, which cannot adapt to different head shapes. After wearing, the shell is difficult to fit snugly against the head, and problems such as loosening and falling off are prone to occur, making it impossible to stably capture information about the head and surrounding area. Summary of the Invention

[0003] This application aims to provide a data acquisition device and a head-mounted device that at least solves one of the problems in the prior art.

[0004] To solve the above-mentioned technical problems, this application is implemented as follows: According to a first aspect of this application, a data acquisition device is provided, comprising: Curved main body; A rotating piezoelectric component is rotatably mounted on the convex side of the arc-shaped main body; A driving component is disposed within the arc-shaped body and is used to drive the rotating piezoelectric component to rotate relative to the arc-shaped body; A control module is located inside the arc-shaped body and is electrically connected to the drive component and the rotary piezoelectric component. The control module can control the two ends of the rotary piezoelectric component to simultaneously bend and deform toward the convex or concave side of the arc-shaped body. A data acquisition module is located on the arc-shaped main body and is electrically connected to the control module for acquiring external data information.

[0005] Optionally, the rotating piezoelectric component is configured as a strip and includes an initial position and a rotational position; In the initial position, the length direction of the rotating piezoelectric component is consistent with the length direction of the arc-shaped body, and the curvature is adapted to the curvature of the arc-shaped body; At the rotational position, the length direction of the rotating piezoelectric component forms a set angle with the length direction of the arc-shaped body, and the projections of both ends of the rotating piezoelectric component onto the arc-shaped body fall on the outside of the arc-shaped body.

[0006] Optionally, the included angle is set to 90°.

[0007] Optionally, the rotary piezoelectric component and the driving component are respectively provided in multiple sets; Multiple sets of the rotating piezoelectric components are respectively arranged at intervals along the length direction of the arc-shaped body and are respectively connected to the corresponding drive components. The multiple sets of drive components are respectively electrically connected to the control module.

[0008] Optionally, the drive assembly includes a drive member, a rotating cylinder, and an elastic limiting member; The rotating cylinder is rotatably mounted on the convex side of the arc-shaped body through the elastic limiting member. One end of the rotating cylinder is fixedly connected to the rotating piezoelectric assembly, and the other end is provided with a transmission tooth. The rotating cylinder meshes with the driving tooth of the driving member through the transmission tooth.

[0009] Optionally, it also includes a fixed piezoelectric component, which is fixed to the concave side of the arc-shaped body and electrically connected to the control module. The control module can control the fixed piezoelectric component to undergo bending deformation.

[0010] Optionally, the fixed piezoelectric component is configured as a long strip with one end fixed to the concave side of the arc-shaped body, and the projection of the fixed piezoelectric component on the arc-shaped body falls into the inner side of the arc-shaped body.

[0011] Optionally, multiple sets of fixed piezoelectric components are provided, and the multiple sets of fixed piezoelectric components are spaced apart along the length direction of the arc-shaped body, and are electrically connected to the control module respectively.

[0012] Optionally, the data acquisition module includes one or more camera modules, with the lens of each camera module protruding from the convex side of the arc-shaped body.

[0013] Optionally, the arc-shaped body includes an outer shell, an inner shell, and a transparent cover plate. The outer shell and the inner shell are fastened together to form a receiving cavity. The outer shell is provided with a through hole, and the transparent cover plate is placed over the through hole. Both the control module and the data acquisition module are located inside the receiving cavity, with the data acquisition module situated at the transparent cover.

[0014] According to a second aspect of this application, a head-mounted device is provided, comprising: The data acquisition device described in the first aspect.

[0015] In the embodiments of this application, the rotating piezoelectric component is driven to rotate relative to the arc-shaped main body by the driving component, and the control module can drive its two ends to bend and deform towards different sides, which can adaptively fit various head shapes, increase the head support and fit area, effectively alleviate the problem of loosening and falling off, and ensure that the data acquisition modules such as the camera can continuously and stably capture information about the head and surrounding external environment.

[0016] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0017] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the appearance of the data acquisition device provided in this application; Figure 2 yes Figure 1 Exploded view; Figure 3 This is an assembly diagram of the housing and two rotating and fixing components provided in this application; Figure 4 yes Figure 3 Cross-sectional view at point AA; Figure 5 yes Figure 4 A magnified view of a section at point B in the middle; Figure 6 This is a schematic diagram showing the positional relationship between the housing, control module, and drive components provided in this application; Figure 7 yes Figure 6 A magnified view of a section at point C; Figure 8 This is an assembly diagram of the inner shell and two fixed piezoelectric components provided in this application; Figure 9 yes Figure 8 Cross-sectional view at point DD; Figure 10 This is a schematic diagram showing the assembly relationship of the inner shell, drive assembly, fixed piezoelectric assembly and rotating piezoelectric assembly provided in this application; Figure 11 yes Figure 10 A magnified view of a section at point E in the middle; Figure 12 yes Figure 11 A magnified view of a section at point F in the middle; Figure 13 This is a schematic diagram of the data acquisition device provided in this application in its initial state; Figure 14 yes Figure 13 Cross-sectional view at GG; Figure 15 This is a schematic diagram showing the positional relationship between the fixed piezoelectric component provided in this application and the head after bending. Figure 16 yes Figure 15 A magnified view of a section at point H in the middle; Figure 17 This is a schematic diagram of the initial state of the rotating piezoelectric component provided in this application when it is not bent; Figure 18 This is a schematic diagram showing the positional relationship between the two ends of the rotary piezoelectric component provided in this application and the head when the components are bent toward the convex side of the arc-shaped body. Figure 19This is a schematic diagram showing the positional relationship between the rotating piezoelectric component provided in this application and the head when the component is rotated to be perpendicular to the arc-shaped body. Figure 20 This is a schematic diagram showing the positional relationship between the two ends of the rotating piezoelectric component provided in this application and the head when the components are bent toward the concave side of the arc-shaped body.

[0018] Figure label: 1. Arc-shaped main body; 11. Outer shell; 12. Inner shell; 13. Transparent cover plate; 2. Rotating piezoelectric assembly; 3. Drive assembly; 31. Rotating cylinder; 311. Transmission gear; 32. Drive component; 321. Drive gear; 33. Elastic limiting component; 34. Bracket; 4. Control module; 41. Main control board; 42. Branch FPC; 5. Data acquisition module; 6. Fixed piezoelectric assembly; 7. Human head. Detailed Implementation

[0019] Embodiments of this application will now be described in detail. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments in this application are within the scope of protection of this application.

[0020] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise stated, "multiple" means two or more. Furthermore, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0021] In the description of this application, 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", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application.

[0022] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0023] The following is combined with Figures 1-20 This application describes a data acquisition apparatus and a head-mounted device according to embodiments thereof.

[0024] like Figures 1 to 7 , Figures 10 to 12 As shown, according to a first aspect of this application, a data acquisition device is provided, including an arc-shaped body 1, a rotating piezoelectric component 2, a drive component 3, a control module 4, and a data acquisition module 5; the rotating piezoelectric component 2 is rotatably disposed on the convex side of the arc-shaped body 1; the drive component 3 is disposed within the arc-shaped body 1 and is used to drive the rotating piezoelectric component 2 to rotate relative to the arc-shaped body 1; the control module 4 is disposed within the arc-shaped body 1 and is electrically connected to the drive component 3 and the rotating piezoelectric component 2, and the control module 4 is capable of controlling both ends of the rotating piezoelectric component 2 to simultaneously undergo bending deformation toward the convex or concave side of the arc-shaped body 1; the data acquisition module 5 is disposed within the arc-shaped body 1 and is electrically connected to the control module 4, and is used to acquire external data information.

[0025] Specifically, in this embodiment, the arc-shaped main body 1 serves as the overall supporting base, and all other functional components are assembled and laid out based on it; the rotary piezoelectric component 2 is mounted on the convex side of the arc-shaped main body 1, possessing the freedom to rotate around the arc-shaped main body 1, and is the actuator for adaptively fitting the head; the drive component 3 is built into the arc-shaped main body 1, forming a transmission cooperation with the rotary piezoelectric component 2, providing rotational power for the rotary piezoelectric component 2; the control module 4 is also arranged inside the arc-shaped main body 1, serving as the core of the whole machine control, and simultaneously completing two-way electrical signal interaction, one connected to the drive component 3 to regulate the rotational action, and the other connected to the rotary piezoelectric component 2, which can independently control its two ends to simultaneously bend and deform towards the convex or concave side of the arc-shaped main body 1; the data acquisition module 5 is integrated on the arc-shaped main body 1 and controlled by the control module 4, responsible for real-time acquisition of external images, environmental and other data information.

[0026] In the above structure, the rotating piezoelectric component 2 can be a double-layer piezoelectric ceramic strip, a multi-layer composite piezoelectric film strip, etc.; the drive component 3 can be a micro motor, etc.; the data acquisition module 5 can be a monocular high-definition camera module, a multi-eye wide-angle camera acquisition module, or other sensors, etc.; all components rely on the arc-shaped main body 1 to form an integrated head-mounted structure, with clear layout of transmission, electrical control, and acquisition functions, simple assembly structure, and suitability for mass production. Among them, the rotating piezoelectric component 2 can include a first piezoelectric element and a positive electrode and a negative electrode on both sides of the first piezoelectric element. The control module 4 applies different voltages to both sides of the first piezoelectric element through the positive electrode and the negative electrode, and the first piezoelectric element can be bent in a set direction by the pressure difference.

[0027] When wearing the device, the control module 4 first drives the rotating piezoelectric component 2 to rotate relative to the arc-shaped body 1 to a position suitable for the head shape via the drive component 3. Then, it outputs an electrical signal to control the two ends of the rotating piezoelectric component 2 to bend synchronously, so that it fits and presses against the head surface, that is, it drives the two ends of the rotating piezoelectric component 2 to bend towards the concave side of the arc-shaped body 1. This solution relies on the dual adaptive adjustment capability of the adjustable angle of the rotating piezoelectric component 2 and the active bending deformation to match heads of different sizes and contours, greatly improving the fit between the arc-shaped body 1 and the scalp. After bending, the rotating piezoelectric component 2 forms multi-point support and limit, which can effectively constrain the displacement of the device and solve the problem of loosening and falling off. With the device firmly fitting the head, the acquisition posture of the data acquisition module 5 will not shift or shake, and it can continuously and stably capture data of the head and surrounding environment, improving the integrity and accuracy of the acquired data. All functional modules of the whole machine are integrated inside the arc-shaped body 1, with a compact and lightweight structure, taking into account both wearing comfort and long-term stability of data acquisition.

[0028] Optionally, such as Figures 17 to 20 As shown, the rotating piezoelectric component 2 is configured as a strip and includes an initial position and a rotating position. In the initial position, the length direction of the rotating piezoelectric component 2 is consistent with the length direction of the arc-shaped body 1, and the curvature is adapted to the curvature of the arc-shaped body 1. In the rotating position, the length direction of the rotating piezoelectric component 2 forms a set angle with the length direction of the arc-shaped body 1, and the projections of the two ends of the rotating piezoelectric component 2 onto the arc-shaped body 1 fall on the outside of the arc-shaped body 1.

[0029] Specifically, in this embodiment, the elongated rotating piezoelectric component 2, in its initial position, conforms to the arc-shaped main body 1 in the same direction and matches the curvature of the shell, resulting in a smooth and regular overall outline. When worn, it does not protrude excessively and rub against the head. It occupies less space during daily storage and placement, has a high degree of integrated appearance, and also reduces the overall thickness of the device, improving basic wearing comfort. When switched to the rotating position, the rotating piezoelectric component 2 forms a set angle with the arc-shaped main body 1, with its two ends projecting outwards to the outside of the shell. The rotating piezoelectric component 2 unfolds outwards, effectively widening the contact support range with the scalp. Compared to the constricted state that conforms to the shell, it can form distributed support points on the head, increasing the contact area for force application.

[0030] When worn by users with different head circumferences and contours, the extended piezoelectric ends can bridge and conform to different areas of the scalp, compensating for the poor adaptability of the fixed-curvature shell. Multi-point support evenly distributes the device's weight, avoiding discomfort caused by localized pressure at a single point. Simultaneously, multi-point limiting significantly restricts the left-right and up-down sliding of the curved body 1, structurally preventing loosening and detachment. The stable, non-shaking assembly further ensures the data acquisition module 5 on the curved body 1 is fixed in place, with no image shift or jitter, continuously and stably capturing information around the head, balancing portability, wearing comfort, and data acquisition stability.

[0031] Optionally, such as Figure 19 and Figure 20 As shown, the included angle is set to 90°.

[0032] Specifically, in this embodiment, the included angle of the rotating piezoelectric component 2 is limited to 90°, so that the elongated rotating piezoelectric component 2 changes from a horizontally retracted state that fits against the arc-shaped body 1 to an upright supporting state that is perpendicular to the arc-shaped body 1. The 90° orthogonal layout allows the two ends of the rotating piezoelectric component 2 to be symmetrically distributed on the upper and lower sides of the arc-shaped body 1, forming two sets of independent support points, with balanced force and no off-center load. This can restrict the device from sliding and flipping along the head in all directions, and adapt to various head shapes to achieve uniform pressing.

[0033] The orthogonal structure maximizes the support span and achieves optimal clamping and limiting effects, avoiding the defects of insufficient support range at small angles and easy scalp scraping at large angles. It not only securely fixes the acquisition device but also ensures continuous and stable data acquisition by the camera. At the same time, it controls the force direction of piezoelectric bending deformation in a regular manner, reducing the difficulty of drive control.

[0034] Optionally, such as Figures 1 to 3 , Figure 6 and Figure 10 As shown, multiple sets of rotary piezoelectric components 2 and drive components 3 are respectively provided; multiple sets of rotary piezoelectric components 2 are respectively arranged at intervals along the length direction of the arc-shaped main body 1, and are respectively connected to the corresponding drive components 3 for transmission; multiple sets of drive components 3 are respectively electrically connected to the control module 4.

[0035] Specifically, in this embodiment, multiple sets of one-to-one corresponding rotary piezoelectric components 2 and driving components 3 are arranged at intervals along the length of the arc-shaped main body 1. Each set of driving components 3 is independently electrically connected to the control module 4, enabling independent zone control. The multiple sets of spaced rotary piezoelectric components 2 can form multiple independent pressing fulcrums in different areas of the head corresponding to the arc-shaped main body 1, which can adaptively fit different head contours such as the forehead and the two temples, greatly improving the adaptability to head shapes with different widths and lengths, and avoiding problems such as insufficient support on one side or local suspension.

[0036] The control module 4 can issue commands to any group of drive components 3 individually to adjust the rotation angle and bending deformation of each group of rotating piezoelectric components 2. It can provide differentiated compression compensation for the uneven contours of the user's head, so that the arc-shaped main body 1 fits the scalp evenly, disperses the local pressure caused by the weight of the device, and significantly improves the comfort of wearing it for a long time.

[0037] Multi-point coordinated limiting can significantly reduce the probability of loosening and falling off by shifting and flipping multiple constraint devices, ensuring the stability of the data acquisition module 5 on the arc-shaped main body 1 and avoiding image jitter and offset; each group of transmission and electrical control is independent of each other, and when a single group has an abnormal action, it will not affect the normal operation of the other rotating piezoelectric components 2, improving the reliability of equipment operation. At the same time, the partitioned modular structure also facilitates the batch assembly of parts and subsequent inspection and maintenance, adapting to the needs of industrial mass production.

[0038] like Figure 17 The diagram shows the data acquisition device worn on the head with the two rotating piezoelectric components 2 in their initial state. When it is necessary to stably fix the data acquisition device to the head 7, one or two sets of drive components 3 can be used to rotate the two rotating piezoelectric components 2 to a vertical position, as shown below. Figure 20 As shown, two support points are now formed at the top and bottom.

[0039] The specific working process is as follows: First, voltage is applied to the two rotating piezoelectric components 2 through the control module 4, causing the two ends of the two rotating piezoelectric components 2 to tilt towards the convex side of the arc-shaped body 1, as shown. Figure 18 As shown; then, the control module 4 controls the drive component 3 to rotate the two rotating piezoelectric components 2, which are raised at both ends, by 90°, so that they are perpendicular to the entire acquisition device, as shown. Figure 19As shown; finally, the control module 4 applies opposite voltages to the two rotating piezoelectric components 2 again, causing the ends of the two rotating piezoelectric components 2 to bend towards the scalp and press tightly against the human head 7. This vertical fulcrum helps stabilize the data acquisition device on the human head 7. The rotation process is driven by the drive component 32 and its drive teeth 321, which drive the transmission teeth 311 on the rotating cylinder 31 to rotate. The rotating cylinder 31 is fixed together with the rotating piezoelectric components 2, thus achieving the purpose of rotating together. (Refer to...) Figures 10 to 12 .

[0040] Optionally, such as Figures 3 to 7 ,as well as Figures 10 to 12 As shown, the drive assembly 3 includes a drive member 32, a rotating cylinder 31 and an elastic limiting member 33; the rotating cylinder 31 is rotatably mounted on the convex side of the arc-shaped body 1 through the elastic limiting member 33, one end of which is fixedly connected to the rotating piezoelectric assembly 2, and the other end is provided with a transmission tooth 311, and the rotating cylinder 31 meshes with the drive tooth 321 of the drive member 32 through the transmission tooth 311.

[0041] Specifically, in this embodiment, the drive component 32 transmits rotational power through meshing drive teeth 321 and transmission teeth 311. This structure provides a stable transmission ratio and precise power transmission, allowing for accurate control of the rotation angle of the rotating cylinder 31 and the connected rotating piezoelectric component 2. This ensures that the rotating piezoelectric component 2 reliably switches between its initial and rotating positions without angular deviation or transmission slippage. One end of the rotating cylinder 31 is rigidly fixed to the rotating piezoelectric component 2, enabling synchronous rotation of the component. This results in strong transmission synchronization and low power loss. The elastic limiting component 33 is mounted between the rotating cylinder 31 and the arc-shaped body 1, primarily serving an axial limiting function. This prevents the rotating cylinder 31 from dislodging when squeezed by the head or when the equipment shakes, ensuring that the rotating cylinder 31 remains stably mounted on the convex side of the arc-shaped body 1 and maintaining the long-term stability of the transmission structure. Simultaneously, the elastic limiting component 33 possesses a slight elastic buffering capacity, absorbing minor pressure impacts from the head during wear, reducing gear wear, and extending the overall service life of the device.

[0042] The entire transmission and limiting integrated structure has a compact layout, with all components housed within the limited space of the arc-shaped main body 1. This simplifies the internal structure of the shell, facilitating miniaturization and lightweight design, and adapting to the mass production assembly requirements of head-mounted wearable devices. It continuously provides stable rotational power to the rotating piezoelectric component 2, ensuring the piezoelectric support structure functions properly for anti-detachment and adaptive fitting, thereby allowing the data acquisition module 5 to maintain a stable acquisition posture at all times. The drive component 32 can be a micro gear motor, a piezoelectric rotary actuator, etc., while the elastic limiting component 33 can be a snap ring, an elastic retaining ring, etc. Furthermore, the drive component 32 can be fixed to the inner shell 12 or the outer shell 11 via the bracket 34.

[0043] Optionally, such as Figures 8 to 12As shown, the data acquisition device also includes a fixed piezoelectric component 6, which is fixed to the concave side of the arc-shaped body 1 and electrically connected to the control module 4. The control module 4 can control the fixed piezoelectric component 6 to undergo bending deformation.

[0044] Specifically, in this embodiment, a fixed piezoelectric component 6 is added and arranged on the concave side of the arc-shaped main body 1. Its bending deformation is uniformly controlled by the control module 4, forming a dual adaptive locking structure with the outer rotating piezoelectric component 2. The fixed piezoelectric component 6 is located on the concave side close to the scalp. When the device is worn, the control module 4 can output an electrical signal to drive it to bend. After bending, it can directly clamp the hair to form a locking structure, achieving the first anti-fall-off limit from the inside. This compensates for the deficiency of insufficient support and limiting force relying solely on the outer rotating piezoelectric component 2, and greatly reduces the probability of the device slipping and falling off when walking or shaking.

[0045] The fixed piezoelectric component 6 and the rotating piezoelectric component 2 are located on the inner and outer sides respectively, and can cooperate in sections to achieve a snug fit. It provides dual locking compensation for different usage scenarios such as thick hair, narrow head shape, and large head circumference. The fixed piezoelectric component 6 only performs bending action and has no rotating structure. The structure is simple and compact, does not occupy additional space on the outer side of the curved body 1, and does not increase the exposed protrusion of the device, taking into account both the aesthetics and comfort of wearing. The inner and outer piezoelectric components are coordinated and controlled by the same control module 4. They can trigger hair clamping and pressing actions synchronously or stepwise, so that the curved body 1 fits tightly against the head, avoids gaps between the curved body 1 and the scalp, and eliminates the problems of image shaking and incomplete data acquisition caused by device shaking of the data acquisition module 5. At the same time, the overall locking structure does not require rigid elastic straps. It relies on piezoelectric control to adaptively adjust the clamping force to adapt to the wearing tightness needs of different users. The lightweight structure also reduces the weight of the head and is suitable for long-term continuous acquisition of data around the head.

[0046] In the above structure, the fixed piezoelectric component 6 can adopt a double-layer piezoelectric ceramic composite strip structure. Its root is fixedly installed in the positioning hole on the concave side of the arc-shaped main body 1 and locked with glue. The end is a free movable end. The fixed piezoelectric component 6 leads out an FPC cable and is electrically connected to the control module 4. Under the action of voltage difference, the free end undergoes controllable bending. The whole is arranged in a single-sided cantilever type, with a simple and thin structure, which is suitable for assembly in the narrow internal space of the head-mounted device. The fixed piezoelectric component 6 can include a second piezoelectric element and positive and negative electrode plates on both sides of the second piezoelectric element. The control module 4 applies different voltages to both sides of the second piezoelectric element through the positive and negative electrode plates, and the second piezoelectric element can bend in a set direction due to the voltage difference.

[0047] Optionally, such as Figures 8 to 12 As shown, the fixed piezoelectric component 6 is configured as a long strip with one end fixed to the concave side of the arc-shaped body 1, and the projection of the fixed piezoelectric component 6 on the arc-shaped body 1 falls into the inner side of the arc-shaped body 1.

[0048] Specifically, in this embodiment, the fixed piezoelectric component 6 is a long cantilever structure with one end fixed to the concave side of the arc-shaped main body 1, and its entire projection falls on the inner side of the arc-shaped main body 1. The cantilever-type long strip structure is locked only at the root and can be bent freely at the end. When driven by voltage difference, the end can bend precisely toward the scalp to clamp the hair, forming a stable inner locking structure, which works in conjunction with the outer rotating piezoelectric component 2 to achieve double anti-hair loss fixation.

[0049] The fixed piezoelectric component 6 is entirely projected onto the inner side of the curved body 1, with no parts protruding outwards. This prevents scalp irritation and hair pulling, significantly improving wearing comfort. The overall smooth and clean outline of the device facilitates a compact and lightweight design. This layout allows the fixed piezoelectric component 6 to be completely hidden on the side of the curved body 1 that fits the head, without interfering with the rotation of the outer rotating piezoelectric component 2. The fixed piezoelectric component 6 and the rotating piezoelectric component 2 operate independently without interference. The inner hair clamping and limiting mechanism, combined with multi-point support and clamping on the outer side, comprehensively restrains the device's slippage and wobbling, ensuring the stable operation of the data acquisition module 5 on the curved body 1. This allows for continuous and complete data acquisition from the area around the head, and also facilitates one-piece molding and mass production of the casing.

[0050] Optionally, such as Figures 13 to 16 As shown, multiple sets of fixed piezoelectric components 6 are provided, and the multiple sets of fixed piezoelectric components 6 are spaced apart along the length direction of the arc-shaped main body 1, and are electrically connected to the control module 4 respectively.

[0051] Specifically, in this embodiment, multiple sets of fixed piezoelectric components 6 are arranged at intervals along the length of the arc-shaped main body 1, and each set is independently electrically connected to the control module 4, enabling independent control of different areas. The multi-set segmented cantilevered fixed piezoelectric components 6 can form multiple independent hair-clamping points on the inner side of the arc-shaped main body 1 that fits against the head, allowing for individual adaptation and adjustment based on differences in hair volume and contour in different areas of the head, avoiding the shortcomings of a single fixed piezoelectric component 6 which can only clamp at a single point and has insufficient local fixing force.

[0052] The control module 4 can control the bending amplitude of each fixed piezoelectric component 6, and compress and compensate for sparse or protruding areas of the head, so that the arc-shaped body 1 fits the scalp evenly, disperses the clamping stress, and reduces the discomfort caused by pulling the hair in one place.

[0053] Multi-position synchronous locking forms multi-point limit constraints, which, together with multiple sets of rotating piezoelectric components 2 on the outside, greatly improves the device's anti-slip and anti-fall capabilities and effectively suppresses wearing sway; the partitioned modular layout does not interfere with each other, and the failure of a single group does not affect the normal operation of the other components, improving the stability of equipment operation and ensuring that the data acquisition module 5 always maintains a stable position and continuously collects external information without shaking.

[0054] like Figure 13As shown, the data acquisition device is equipped with two fixed piezoelectric components 6. When worn, the fixed piezoelectric components 6 are initially open at a certain angle relative to the arc-shaped body 1. When the end of the fixed piezoelectric component 6 enters the hair layer and contacts the outer layer of the scalp, the fixed piezoelectric component 6 will begin to bend towards the inner shell 12 of the arc-shaped body 1 to clamp a strand of hair. Figure 14 As shown, when the ends of the two fixed piezoelectric components 6 contact the outer edge of the scalp, the two fixed piezoelectric components 6 will move towards... Figure 14 The hair will be caught in the direction of the bold black arrow when the bend is made, as shown in the image. Figure 15 As shown, this allows the entire data collection device to be more securely fixed to the human head 7.

[0055] In practical applications, the bending processes of the fixed piezoelectric component 6 and the rotating piezoelectric component 2 are not sequential. The fixed piezoelectric component 6 can be bent to clamp the hair first, and then the rotating piezoelectric component 2 can be controlled to rotate and bend to achieve further fixation. Alternatively, the two processes can be reversed, and there is no restriction on this.

[0056] Optionally, such as Figure 10 As shown, the data acquisition module 5 includes one or more camera modules, with the lens of each camera module protruding from the convex side of the arc-shaped main body 1.

[0057] Specifically, in this embodiment, the data acquisition module 5 is limited to using one or more camera modules, with the lenses uniformly exposed on the convex side of the curved main body 1. A multi-module configuration enables simultaneous shooting from multiple angles, compensating for the limitations of a single camera's field of view and fully capturing image information from around the head, face, and surrounding environment, significantly expanding the data acquisition coverage. A single-module solution offers a more streamlined structure, reducing overall size and hardware costs, making it suitable for lightweight entry-level products. Positioning the lenses on the outward-facing convex side of the curved main body 1 avoids issues such as image reflection, distortion, and insufficient light intake, ensuring clear and transparent images.

[0058] With the double locking structure formed by the inner fixed piezoelectric component 6 and the outer rotating piezoelectric component 2, the device is securely worn without shaking, the camera position is not easily shifted, and it can stably collect continuous image data for a long time; the modular camera layout is easy to assemble, and the number of modules can be flexibly increased or decreased according to the collection needs, adapting to mass production designs for different scenarios.

[0059] Optionally, such as Figures 6 to 7 As shown, the control module 4 includes a main control board 41 and multiple branch FPCs 42 electrically connected to the main control board 41. The rotating piezoelectric assembly 2, the fixed piezoelectric assembly 6 and the drive assembly 3 are electrically connected to the main control board 41 through the branch FPCs 42 respectively. The data acquisition module 5 is located on the main control board 41.

[0060] Specifically, in this embodiment, an electrical connection architecture is adopted with a main control board 41 and multiple branch FPCs 42. The rotating piezoelectric component 2, the fixed piezoelectric component 6, and the drive component 3 are respectively connected to the main control board 41 via branch FPCs, and the data acquisition module 5 is directly mounted on the main control board 41, realizing a layered layout of electrical components. The main control board 41, as the core processing carrier, can centrally complete signal processing and command output. Each actuator achieves signal splitting and transmission through independent branch FPCs, which can reduce signal crosstalk between different functional circuits and improve the signal transmission stability of piezoelectric drive and data acquisition.

[0061] The flexible characteristics of the branch FPC can adapt to the narrow installation space inside the curved body 1, avoiding the problem of rigid board wiring being limited by the curvature of the shell, and facilitating the alignment and assembly of the rotating piezoelectric component 2, the fixed piezoelectric component 6, and the drive component 3. The data acquisition module 5 is directly integrated into the main control board 41, eliminating the need for intermediate adapter cables, shortening the image signal transmission path, and reducing signal loss and the risk of poor contact. The overall circuit architecture has a clear division of labor, and modular pre-assembly can be completed during assembly, which facilitates mass production soldering and fault diagnosis. It ensures that each piezoelectric actuator can work together to complete adaptive bonding and anti-detachment actions, while allowing the data acquisition module 5 to output acquired data efficiently and stably.

[0062] Optionally, such as Figure 2 As shown, the arc-shaped main body 1 includes an outer shell 11, an inner shell 12, and a transparent cover plate 13. The outer shell 11 and the inner shell 12 are fastened together to form a receiving cavity. The outer shell 11 is provided with a through hole, and the transparent cover plate 13 is placed on the through hole. The control module 4 and the data acquisition module 5 are both set in the receiving cavity, and the data acquisition module 5 is located at the transparent cover plate 13.

[0063] Specifically, in this embodiment, the arc-shaped main body 1 is divided into a combined structure of outer shell 11, inner shell 12, and transparent cover plate 13. The outer shell 11 and inner shell 12 are fastened together to form a closed cavity, which can uniformly accommodate all electrical components such as control module 4 and data acquisition module 5, thereby achieving hardware integrated protection.

[0064] The enclosed cavity can isolate external dust and sweat, preventing moisture and impurities from corroding precision components such as FPC, camera, and piezoelectric components during use, reducing the risk of short circuits, lens contamination, and component failure, and extending the service life of the equipment; the split snap-fit ​​shell is easy to assemble, and the internal modules can be pre-installed before the outer shell 11 and inner shell 12 are closed, which facilitates batch assembly, maintenance, and disassembly on the production line.

[0065] The outer shell features 11 through-holes paired with a transparent cover 13, providing a light-transmitting channel for the camera while simultaneously protecting the lens from bumps, scratches, and direct impacts from foreign objects onto the acquisition module, ensuring an unobstructed imaging optical path. All electronic control and acquisition components are housed within the shell, resulting in a smooth outer surface with no exposed wiring or circuit boards, enhancing both the wearing experience and the overall aesthetic integrity. Combined with a dual-locking structure of internal and external piezoelectric components, the device is securely worn while the shell stably protects the internal acquisition and control structures, ensuring continuous and reliable operation.

[0066] According to the second aspect of this application, such as Figures 13 to 20 As shown, a head-mounted device is provided, including: a data acquisition device in the first aspect.

[0067] Specifically, in this embodiment, the head-mounted device is directly equipped with the aforementioned data acquisition device that has adaptive locking and stable acquisition functions. Relying on the arc-shaped main body 1, combined with the rotating piezoelectric component 2 and the inner fixed piezoelectric component 6, a dual adaptive fixing structure is formed, which can adapt to various head shapes. Multi-point clamping and pressing are achieved through electronic control adjustment of piezoelectric bending and rotation support, effectively solving the defects of traditional head-mounted devices that are easy to loosen and fall off and cannot fit snugly to the head. The device integrates a data acquisition module 5 with a built-in camera, combined with contoured FPC control circuitry and a snap-fit ​​protective shell. While achieving stable wear for a long time, it can continuously collect head and surrounding external data without obstruction and with low vibration. The entire integrated structure is compact and lightweight, taking into account wearing comfort, structural reliability and data acquisition accuracy. It can be directly applied to various usage scenarios that require head information acquisition. By integrating the aforementioned data acquisition device, the head-mounted device fully inherits all its technical advantages such as adaptive fit, anti-fall-off, high-definition stable acquisition and easy mass production assembly, without the need for additional complex fixing structures, simplifying the design and production process of the entire head-mounted device.

[0068] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0069] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A data acquisition device, characterized in that, include: Arc-shaped main body (1); A rotating piezoelectric component (2) is rotatably disposed on the convex side of the arc-shaped main body (1); A drive assembly (3) is disposed within the arc-shaped body (1) and is used to drive the rotating piezoelectric assembly (2) to rotate relative to the arc-shaped body (1); The control module (4) is located inside the arc-shaped body (1) and is electrically connected to the drive component (3) and the rotary piezoelectric component (2). The control module (4) can control the two ends of the rotary piezoelectric component (2) to simultaneously bend and deform toward the convex or concave side of the arc-shaped body (1). The data acquisition module (5) is located on the arc-shaped body (1) and electrically connected to the control module (4) for acquiring external data information.

2. The data acquisition device according to claim 1, characterized in that, The rotating piezoelectric component (2) is configured as a strip and includes an initial position and a rotational position; At the initial position, the length direction of the rotating piezoelectric component (2) is consistent with the length direction of the arc-shaped body (1), and the arc is adapted to the arc of the arc-shaped body (1); At the rotation position, the length direction of the rotating piezoelectric component (2) forms a set angle with the length direction of the arc-shaped body (1), and the projections of the two ends of the rotating piezoelectric component (2) on the arc-shaped body (1) fall on the outside of the arc-shaped body (1).

3. The data acquisition device according to claim 2, characterized in that, The included angle is set to 90°.

4. The data acquisition device according to claim 1, characterized in that, The rotating piezoelectric component (2) and the driving component (3) are respectively provided with multiple sets; Multiple sets of the rotating piezoelectric components (2) are arranged at intervals along the length direction of the arc-shaped body (1) and are respectively connected to the corresponding drive components (3). The multiple sets of drive components (3) are respectively electrically connected to the control module (4).

5. The data acquisition device according to claim 1, characterized in that, The drive assembly (3) includes a drive component (32), a rotating cylinder (31), and an elastic limiting component (33); The rotating cylinder (31) is rotatably mounted on the convex side of the arc-shaped body (1) via the elastic limiting member (33). One end of the cylinder is fixedly connected to the rotating piezoelectric assembly (2), and the other end is provided with a transmission tooth (311). The rotating cylinder (31) meshes with the driving tooth (321) of the driving member (32) through the transmission tooth (311).

6. The data acquisition device according to claim 1, characterized in that, It also includes a fixed piezoelectric component (6), which is fixed to the concave side of the arc-shaped body (1) and electrically connected to the control module (4). The control module (4) can control the fixed piezoelectric component (6) to undergo bending deformation.

7. The data acquisition device according to claim 6, characterized in that, The fixed piezoelectric component (6) is configured as a long strip with one end fixed to the concave side of the arc-shaped body (1), and the projection of the fixed piezoelectric component (6) on the arc-shaped body (1) falls into the inner side of the arc-shaped body (1).

8. The data acquisition device according to claim 6, characterized in that, The fixed piezoelectric components (6) are provided in multiple sets, and the multiple sets of fixed piezoelectric components (6) are spaced apart along the length direction of the arc-shaped body (1) and are electrically connected to the control module (4) respectively.

9. The data acquisition device according to claim 1, characterized in that, The data acquisition module (5) includes one or more camera modules, and the lens of each camera module is exposed on the convex side of the arc-shaped body (1).

10. The data acquisition device according to claim 1, characterized in that, The arc-shaped main body (1) includes an outer shell (11), an inner shell (12) and a transparent cover plate (13). The outer shell (11) and the inner shell (12) are fastened together to form a receiving cavity. The outer shell (11) is provided with a through hole, and the transparent cover plate (13) is placed over the through hole. The control module (4) and the data acquisition module (5) are both located inside the cavity, with the data acquisition module (5) located at the transparent cover plate (13).

11. A head-mounted device, characterized in that, include: The data acquisition device according to any one of claims 1-10.

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