A magnetic quick-release type human joint posture real-time acquisition system

Abstract

This application relates to the field of sensor technology, specifically disclosing a magnetic quick-release human joint posture real-time acquisition system, aiming to solve the problems of cumbersome assembly and disassembly of the connection structure between the sensor module and the wearable base in the prior art, as well as the easy loosening during movement. The system includes a sensor module and a wearable base; the rear surface of the sensor module has a first magnetic attraction part, and the front surface of the wearable base has a second magnetic attraction part. The first and second magnetic attraction parts magnetically engage to achieve quick assembly and disassembly; the sensor module also has a locking mechanism, which includes a rotating component and a latching component. When the rotating component rotates to a second position, it engages with the latching component to form a locked state, preventing the sensor module from loosening during movement. By adopting the above technical solution, this application can achieve quick assembly and disassembly of the sensor module and reliable locking, with high assembly and disassembly efficiency and strong connection strength.

Description

Technical Field

[0001] This invention belongs to the field of sensor technology, specifically relating to a magnetic quick-release human joint posture real-time acquisition system. Background Technology

[0002] Real-time human joint posture acquisition technology is a crucial component of motion capture, utilizing sensor modules deployed at specific locations on the human body to acquire joint motion data in real time. In motion capture applications employing inertial sensors, the relative static state between the sensor module and the human body directly impacts the accuracy and reliability of data acquisition. Because human joints experience frequent displacement and vibration during movement, the connection between the acquisition device and the wearable base can easily become loose, leading to sensor positional shifts and affecting the accuracy of posture data.

[0003] In existing technologies, the sensor module and wearable base are primarily secured using Velcro or mechanical clips. While Velcro provides a certain level of connection strength, it is prone to loosening during prolonged movement or high-frequency vibration, and its adhesive strength decreases significantly after repeated use. Mechanical clips require precise alignment for assembly, making the process cumbersome and inefficient in scenarios requiring frequent sensor repositioning or rapid disassembly. These limitations in securing the device necessitate significant time and effort from users, resulting in a poor human-computer interaction experience and hindering real-time performance in fast-paced motion capture scenarios. Summary of the Invention

[0004] This application provides a magnetic quick-release human joint posture real-time acquisition system, which aims to solve the problems of cumbersome disassembly and assembly of the connection structure between the sensor module and the wearable base in the prior art, as well as the easy loosening during exercise.

[0005] The first aspect of this application provides a magnetic quick-release type real-time human joint posture acquisition system, including:

[0006] A sensor module and a wearable base; the rear surface of the sensor module is provided with a first magnetic attraction part; the front surface of the wearable base is provided with a second magnetic attraction part; the first magnetic attraction part and the second magnetic attraction part are magnetically attracted to each other to realize quick assembly and disassembly connection between the sensor module and the wearable base;

[0007] The sensor module further includes a locking mechanism; the locking mechanism includes a rotating component and a latching component; the rotating component is disposed on the side wall of the sensor module and can rotate around an axis; the latching component is disposed on the wearable base; when the rotating component rotates to the first position, the rotating component disengages from the latching component, at which time the sensor module can be detached from the wearable base; when the rotating component rotates to the second position, the rotating component engages with the latching component, at which time the sensor module and the wearable base are locked together to prevent the sensor module from becoming loose from the wearable base due to vibration during human movement.

[0008] In one optional embodiment, the first magnetic attraction part includes a first magnet; the second magnetic attraction part includes a second magnet adapted to the first magnet; the first magnet and the second magnet are magnetic poles that attract each other, so that the sensor module can be magnetically attracted and fixed to the wearable base.

[0009] In one optional embodiment, there are multiple first magnets and multiple second magnets, with the multiple first magnets arranged in an array on the rear surface of the sensor module and the multiple second magnets arranged in an array on the front surface of the wearable base; the multiple first magnets and the corresponding multiple second magnets are magnetically attracted to each other to enhance the adsorption stability between the sensor module and the wearable base.

[0010] In one optional embodiment, the sensor module further includes a housing; the first magnetic suction part is disposed on the rear surface of the housing; the housing has an internal mounting cavity; a posture sensor is disposed in the mounting cavity; the posture sensor is used to collect posture data of human joints.

[0011] In one alternative embodiment, the attitude sensor includes an inertial measurement unit; the inertial measurement unit includes an accelerometer and a gyroscope; the accelerometer is used to measure triaxial acceleration; and the gyroscope is used to measure triaxial angular velocity.

[0012] In one optional embodiment, the sensor module further includes a signal processing circuit; the signal processing circuit is disposed within the mounting cavity; the attitude sensor is electrically connected to the signal processing circuit; the signal processing circuit is used to filter and calculate the attitude data collected by the attitude sensor to obtain processed attitude data.

[0013] In one optional embodiment, the sensor module further includes a wireless communication module; the wireless communication module is disposed inside the housing and electrically connected to the signal processing circuit; the wireless communication module is used to wirelessly transmit the processed attitude data to an external data receiving device.

[0014] In one alternative embodiment, the rotating component includes an operating part and a locking part; the operating part protrudes from the outside of the side wall of the sensor module for manual rotation by a user; the locking part engages with the latching member when the rotating component is rotated to the second position.

[0015] In one optional embodiment, the fastener includes a fixed base and an elastic latch; the fixed base is fixedly disposed on the wearable base; the elastic latch is disposed on the fixed base and is capable of elastic deformation; when the rotating member rotates to the second position, the locking portion presses the elastic latch to cause it to elastically deform and engage in the slot of the locking portion to achieve locking.

[0016] In one optional embodiment, the wearable base includes a base body and connecting straps; the base body has a plate-like structure; the connecting straps are disposed on both sides of the base body for binding and fixing the base body to the human limb.

[0017] In one optional embodiment, the base body is provided with a positioning protrusion; the rear surface of the sensor module is provided with a positioning groove that matches the positioning protrusion; when the first magnetic part and the second magnetic part magnetically engage, the positioning protrusion is fitted into the positioning groove to achieve precise alignment of the sensor module relative to the wearable base.

[0018] In one optional implementation, the magnetic attraction between the sensor module and the wearable base is greater than a preset threshold, so that the sensor module can maintain a stable adsorption connection with the wearable base within the range of daily human movement; the locking mechanism can withstand a separation force greater than the preset threshold when the rotating part is in the second position, so as to further enhance the connection strength.

[0019] In one alternative implementation, the outer shell of the sensor module is made of rigid plastic or aluminum alloy to provide sufficient structural strength and reduce overall weight; the base body of the wearable base is made of flexible material covering a rigid support plate to balance wearing comfort and support stability.

[0020] In the magnetic quick-release human joint posture real-time acquisition system provided in this application, the sensor module achieves quick assembly and disassembly through the magnetic attraction between the first and second magnetic parts. Users only need to bring the sensor module close to the wearable base, and it will automatically be attracted and positioned under the action of magnetism, without the need for complicated alignment operations. At the same time, by setting a locking mechanism composed of a rotating part and a buckle, after the sensor module is attracted to the wearable base, the user only needs to rotate the rotating part to make the buckle engage with the buckle, realizing one-click locking. This effectively prevents the sensor module from loosening due to vibration or inertia during human joint movement, ensuring the relative stillness between the sensor module and the human body during the acquisition process, while also taking into account the need for quick assembly and disassembly.

[0021] Compared with existing technologies, the advantages and positive effects of this invention are as follows: It employs a dual fixing mechanism combining magnetic attraction and mechanical locking. Magnetic attraction provides rapid adsorption and alignment, while mechanical locking provides reliable anti-loosening protection, completely solving the technical problems of cumbersome assembly and disassembly of Velcro or mechanical buckles and their tendency to loosen during movement in existing technologies. Users can complete the assembly and disassembly of the sensor module with one hand, significantly improving efficiency. Simultaneously, the locking mechanism can withstand significant separation force in the locked state, ensuring that the sensor module maintains a stable connection with the wearable base even under vigorous exercise conditions, effectively guaranteeing the accuracy and reliability of the collected data. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall technical architecture of the magnetic quick-release human joint posture real-time acquisition system proposed in this invention;

[0023] Figure 2 This is a schematic diagram illustrating the core principle framework of the dual fixing mechanism combining magnetic attraction and mechanical locking in this invention. Detailed Implementation

[0024] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0025] In the accompanying drawings, the size of constituent elements, the thickness of layers, or areas may sometimes be exaggerated for clarity. Therefore, any implementation of this disclosure is not necessarily limited to the dimensions shown in the drawings, and the shapes and sizes of the components in the drawings do not reflect true proportions. Furthermore, the drawings schematically illustrate ideal examples, and any implementation of this disclosure is not limited to the shapes or values ​​shown in the drawings.

[0026] Reference Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the overall technical architecture of the magnetic quick-release human joint posture real-time acquisition system proposed in this invention; Figure 2 This is a schematic diagram illustrating the core principle framework of the dual fixing mechanism combining magnetic attraction and mechanical locking in this invention. As shown in the figure, the system includes: a sensor module and a wearable base; the rear surface of the sensor module is provided with a first magnetic attraction part; the front surface of the wearable base is provided with a second magnetic attraction part; the first magnetic attraction part and the second magnetic attraction part magnetically engage to achieve quick assembly and disassembly between the sensor module and the wearable base; the sensor module also includes a locking mechanism for mechanically locking the sensor module after it is attached to the wearable base.

[0027] In this embodiment, the magnetic quick-release human joint posture real-time acquisition system achieves rapid assembly and disassembly between the sensor module and the wearable base through a dual fixing mechanism combining magnetic attraction and mechanical locking. During the connection process, the user first brings the rear surface of the sensor module close to the front surface of the wearable base. Due to the magnetic force between the first and second magnetic attraction parts, the sensor module is automatically attracted to the wearable base and initially positioned. Subsequently, the user operates the locking mechanism to rotate the rotating component to the second position. At this point, the rotating component engages with the latching component, forming a mechanical lock, thus ensuring that the sensor module will not loosen due to vibration or inertia during human movement. This dual fixing mechanism combining magnetic attraction and mechanical locking ensures both convenient quick assembly and disassembly and provides reliable anti-loosening protection.

[0028] In one embodiment, this application also provides a magnetic quick-release human joint posture real-time acquisition system. In this system, the first magnetic part includes a first magnet; the second magnetic part includes a second magnet adapted to the first magnet; the first magnet and the second magnet are magnetic poles that attract each other, so that the sensor module can be magnetically attracted and fixed to the wearable base.

[0029] In this embodiment, a first magnet is disposed on the rear surface of the sensor module, and a second magnet is disposed on the front surface of the wearable base. The magnetic poles of the first and second magnets attract each other. When the sensor module approaches the wearable base, the magnetic force between the first and second magnets causes the sensor module to be automatically attracted to the wearable base, achieving rapid positioning and initial fixation. This magnetic attraction method eliminates the need for complex alignment operations; the user only needs to bring the sensor module approximately close to the wearable base, and the magnetic force will automatically complete the positioning and attraction process.

[0030] In one embodiment, this application also provides a magnetic quick-release human joint posture real-time acquisition system. In this system, there are multiple first magnets and multiple second magnets. The multiple first magnets are arranged in an array on the rear surface of the sensor module, and the multiple second magnets are arranged in an array on the front surface of the wearable base. The multiple first magnets and the corresponding multiple second magnets are magnetically attracted to each other to enhance the adsorption stability between the sensor module and the wearable base.

[0031] In this embodiment, multiple first magnets are arranged in an array on the rear surface of the sensor module, such as in a two-row, two-column, four-row, or other array configurations. Multiple second magnets are arranged in an array corresponding to the first magnets on the front surface of the wearable base. When the sensor module approaches the wearable base, each first magnet and its corresponding second magnet generate a magnetic attraction force. The combined effect of these multiple magnetic forces makes the connection between the sensor module and the wearable base more stable. This multi-magnet array arrangement effectively disperses the attraction force, avoiding localized wear or loosening caused by single-point force, while also improving the flatness and sealing of the connection surface.

[0032] In one embodiment, this application also provides a magnetic quick-release human joint posture real-time acquisition system. In this system, the sensor module further includes a housing; the first magnetic part is disposed on the rear surface of the housing; the housing has an installation cavity inside; the posture sensor is disposed in the installation cavity; the posture sensor is used to acquire human joint posture data.

[0033] In this embodiment, the outer shell of the sensor module is made of rigid plastic or aluminum alloy to provide sufficient structural strength and reduce overall weight. Rigid plastic has good wear resistance and impact resistance, effectively protecting internal components from external impacts; aluminum alloy is lightweight and high-strength, providing sufficient structural strength while reducing overall weight. A first magnetic attachment is provided on the rear surface of the outer shell for magnetic engagement with a second magnetic attachment on the wearable base. An internal mounting cavity is provided inside the outer shell, where the posture sensor is housed to collect posture data of the human joints. The mounting cavity design ensures that the posture sensor is stably fixed inside the outer shell, avoiding measurement errors caused by shaking or collisions.

[0034] In one embodiment, this application also provides a magnetic quick-release type real-time human joint posture acquisition system. In this system, the posture sensor includes an inertial measurement unit; the inertial measurement unit includes an accelerometer and a gyroscope; the accelerometer is used to measure triaxial acceleration; and the gyroscope is used to measure triaxial angular velocity.

[0035] In this embodiment, the inertial measurement unit (IMU) is the core component of the attitude sensor, comprising two measuring elements: an accelerometer and a gyroscope. The accelerometer measures acceleration along the three coordinate axes. Based on the magnitude and direction of the acceleration, the tilt angle and acceleration of the sensor module relative to gravity can be calculated. The gyroscope measures the angular velocity of rotation around the three coordinate axes. By integrating the angular velocity, the change in the rotation angle of the sensor module can be obtained. The combined use of these two measuring elements enables comprehensive perception of human joint posture. The measurement data from the accelerometer and gyroscope are fused through the signal processing circuitry within the sensor module to obtain more accurate and stable attitude angle information.

[0036] In one embodiment, this application also provides a magnetic quick-release type real-time human joint posture acquisition system. In this system, the sensor module further includes a signal processing circuit; the signal processing circuit is disposed in the mounting cavity; the posture sensor is electrically connected to the signal processing circuit; the signal processing circuit is used to filter and calculate the posture data acquired by the posture sensor to obtain processed posture data.

[0037] In this embodiment, the signal processing circuit is housed within the mounting cavity and electrically connected to the attitude sensor. After receiving the raw measurement data output from the attitude sensor, the signal processing circuit first performs filtering to remove noise and interference signals generated during the measurement process. Filtering can employ low-pass filters, Kalman filters, or other digital filtering algorithms to eliminate the influence of high-frequency vibrations and electromagnetic interference on the measurement results. After filtering, the signal processing circuit performs attitude calculation on the filtered data. Attitude calculation involves converting the measurement data from the accelerometer and gyroscope into attitude information such as pitch, roll, and yaw angles of the human joints. Commonly used attitude calculation algorithms include quaternion methods, Euler angle methods, and direction cosine matrix methods. After completing the attitude calculation, the signal processing circuit outputs the processed attitude data.

[0038] In one embodiment, this application also provides a magnetic quick-release type real-time human joint posture acquisition system. In this system, the sensor module further includes a wireless communication module. The wireless communication module is disposed inside the housing and electrically connected to the signal processing circuit. The wireless communication module is used to wirelessly transmit the processed posture data to an external data receiving device.

[0039] In this embodiment, the wireless communication module is located inside the housing and is electrically connected to the signal processing circuit. The wireless communication module can use Bluetooth, Wi-Fi, ZigBee, or other wireless communication protocols. The signal processing circuit transmits the processed attitude data to the wireless communication module via a data bus. The wireless communication module modulates the attitude data into a wireless signal and sends it to an external data receiving device. The external data receiving device can be a smartphone, tablet, computer, or other terminal device with data receiving capabilities. Wireless communication avoids the constraints and inconveniences of wired connections, allowing users greater freedom of movement when collecting human joint posture data without being limited by cable length.

[0040] In one embodiment, this application also provides a magnetic quick-release type real-time human joint posture acquisition system. In this system, the locking mechanism includes a rotating component and a snap-fit ​​component. The rotating component is disposed on the side wall of the sensor module and can rotate around an axis. The snap-fit ​​component is disposed on the wearable base. When the rotating component rotates to a first position, the rotating component disengages from the snap-fit ​​component, at which time the sensor module can be detached from the wearable base. When the rotating component rotates to a second position, the rotating component engages with the snap-fit ​​component, at which time the sensor module and the wearable base are locked together to prevent the sensor module from becoming detached from the wearable base due to vibration during human movement.

[0041] In this embodiment, the locking mechanism consists of a rotating component and a latching component. The rotating component is disposed on the side wall of the sensor module and can rotate around a fixed axis. The latching component is disposed on the wearable base and works in conjunction with the rotating component. When the user needs to assemble or disassemble the sensor module, the rotating component is first rotated to the first position. At this time, the rotating component disengages from the latching component, and the magnetic force attracts the sensor module to the wearable base, allowing the user to easily remove the sensor module from the wearable base. When the sensor module needs to be locked, the user rotates the rotating component to the second position. At this time, the latching part of the rotating component engages with the latching component, forming a mechanical locking state. This mechanical locking method can firmly connect the sensor module to the wearable base, and the sensor module will not loosen even during vigorous movement or significant vibration.

[0042] In one embodiment, this application also provides a magnetic quick-release type real-time human joint posture acquisition system. In this system, the rotating component includes an operating part and a locking part; the operating part protrudes from the outside of the side wall of the sensor module for manual rotation by the user; the locking part engages with the buckle when the rotating component is rotated to the second position.

[0043] In this embodiment, the rotating component consists of two parts: an operating part and a locking part. The operating part protrudes from the side wall of the sensor module, forming an operating handle or knob that is easy for the user to grip. The user can pinch the operating part with their fingers and apply rotational force to make the rotating component rotate around its axis. The locking part is located at an appropriate position on the rotating component. When the rotating component rotates to the second position, the locking part aligns perfectly with the latching component and engages in the latching component's slot, thus achieving a locking function. The design of the operating part fully considers ergonomic principles, making it easy for the user to operate with one hand and complete the assembly and disassembly without the need for additional tools.

[0044] In one embodiment, this application also provides a magnetic quick-release type real-time human joint posture acquisition system. In this system, the fastener includes a fixed base and an elastic latch; the fixed base is fixedly disposed on the wearable base; the elastic latch is disposed on the fixed base and is capable of elastic deformation; when the rotating member rotates to the second position, the locking part presses the elastic latch to cause it to elastically deform and engage in the slot of the locking part to achieve locking.

[0045] In this embodiment, the fastener consists of a fixed base and an elastic latch. The fixed base is fixedly mounted on the wearable base, providing support and a fixing point for the elastic latch. The elastic latch, mounted on the fixed base, has a certain degree of elasticity and can undergo elastic deformation. When the rotating component rotates from the first position to the second position, the latching part of the rotating component first contacts the elastic latch and applies pressure. Under the pressure, the elastic latch undergoes elastic deformation to one side, allowing the latching part to pass through. After the latching part has completely passed through, the elastic latch rebounds under the action of elastic restoring force and engages in the slot of the latching part, forming a mechanical engagement and achieving a locking function. This elastic fastener structure has automatic positioning and self-locking functions. When the latching part enters the slot, the restoring force of the elastic latch will firmly lock the latching part, preventing accidental loosening.

[0046] In one embodiment, this application also provides a magnetic quick-release type real-time human joint posture acquisition system. In this system, the wearable base includes a base body and a connecting strap; the base body has a plate-like structure; the connecting strap is disposed on both sides of the base body for binding and fixing the base body to the human limb.

[0047] In this embodiment, the wearable base consists of a base body and connecting straps. The base body has a plate-like structure, with a second magnetic attachment on the front surface for magnetically engaging with the first magnetic attachment on the sensor module. Connecting straps are located on both sides of the base body and can be flexible webbing, Velcro, or other connection methods. When wearing the device, the user wraps the connecting straps around the limb and tightens them, ensuring the base body fits snugly against the skin or clothing. The connecting straps are then secured with Velcro or other fastening methods, fixing the wearable base to the limb. The length of the connecting straps can be adjusted according to limb thickness to accommodate different users. The base body uses a flexible material to cover a rigid support plate, balancing wearing comfort and support stability.

[0048] In one embodiment, this application also provides a magnetic quick-release human joint posture real-time acquisition system. In this system, the base body is provided with a positioning protrusion; the rear surface of the sensor module is provided with a positioning groove that matches the positioning protrusion; when the first magnetic part and the second magnetic part magnetically engage, the positioning protrusion is fitted into the positioning groove to achieve precise alignment of the sensor module relative to the wearable base.

[0049] In this embodiment, the base body has a positioning protrusion, and the rear surface of the sensor module has a positioning groove that matches the positioning protrusion. When the sensor module is magnetically attracted to the wearable base, the positioning protrusion fits perfectly into the positioning groove, achieving precise alignment. The cooperation between the positioning protrusion and the positioning groove ensures that the sensor module is accurately positioned on the wearable base, avoiding attitude measurement errors caused by positional offset. The positioning protrusion can be cylindrical, square, or other shapes, and the shape of the positioning groove matches the positioning protrusion; the accuracy of their cooperation directly affects the accuracy of alignment.

[0050] In one embodiment, this application also provides a magnetic quick-release human joint posture real-time acquisition system. In this system, the magnetic attraction force between the sensor module and the wearable base is greater than a preset threshold, so that the sensor module can maintain a stable adsorption connection with the wearable base within the range of daily human movement. When the rotating part is in the second position, the locking mechanism can withstand a separation force greater than the preset threshold, so as to further enhance the connection strength.

[0051] In this embodiment, the magnetic attraction between the sensor module and the wearable base is set to be greater than a preset threshold, which corresponds to the separation force that may occur within the range of daily human movement. During daily activities such as walking, running, and jumping, the separation force experienced by the sensor module is usually less than this preset threshold; therefore, the magnetic attraction is sufficient to maintain a stable magnetic connection between the sensor module and the wearable base. When the rotating part of the locking mechanism is in the second position, the mechanical locking structure can withstand a greater separation force, which is much greater than the preset threshold corresponding to the magnetic attraction. This means that even during vigorous exercise or when subjected to a large external impact, the locking mechanism can ensure that the sensor module will not detach from the wearable base, providing double protection.

[0052] In one embodiment, this application also provides a magnetic quick-release human joint posture real-time acquisition system. In this system, when the rotating component rotates to the first position, the user can manually remove the sensor module from the wearable base to complete quick disassembly and assembly. When the rotating component rotates to the second position, the sensor module and the wearable base are locked together, and the user cannot directly remove the sensor module from the wearable base by hand. The rotating component must be rotated to the first position before disassembly and assembly can be performed.

[0053] In this embodiment, the working state of the locking mechanism is closely related to user operation. When the rotating part rotates to the first position, it disengages from the latching part, and the connection between the sensor module and the wearable base is maintained solely by magnetic attraction. Because the magnetic attraction is relatively weak, the user can easily remove the sensor module from the wearable base, enabling quick assembly and disassembly. When the rotating part rotates to the second position, the latching part of the rotating part engages with the latching part, forming a mechanical lock. At this point, the connection between the sensor module and the wearable base is very secure, and the user cannot remove the sensor module directly by hand. This design effectively prevents accidental loosening while ensuring that when assembly and disassembly are required, the user can easily complete the process.

[0054] In one embodiment, this application also provides a magnetic quick-release human joint posture real-time acquisition system. In this system, the outer shell of the sensor module is made of hard plastic or aluminum alloy to provide sufficient structural strength and reduce overall weight; the base body of the wearable base is made of flexible material covering a rigid support plate to balance wearing comfort and support stability.

[0055] In this embodiment, the selection of the sensor module's outer shell material takes into account both structural strength and weight. Rigid plastic is characterized by low cost, good wear resistance, and excellent insulation, making it suitable for manufacturing electronic device housings. Aluminum alloy, on the other hand, has low density, high strength, and good heat dissipation, making it suitable for applications with high requirements for weight and heat dissipation. The wearable base's base body uses a flexible material to cover a rigid support plate. The rigid support plate provides sufficient support strength, ensuring that the base body is not easily deformed under external forces. The flexible material covering the surface of the rigid support plate provides good wearing comfort and avoids discomfort caused by direct contact between the rigid material and the skin.

[0056] The working principle of the magnetic quick-release human joint posture real-time acquisition system provided in this application is as follows: When the user needs to wear the system, firstly, the connecting strap of the wearable base is tied and fixed to the corresponding joint of the human body, such as the wrist, elbow, knee, or ankle. Then, the rear surface of the sensor module is brought close to the front surface of the wearable base. Due to the magnetic force between the first and second magnetic parts, the sensor module is automatically attracted to the wearable base and initially positioned. At the same time, the positioning protrusion is embedded in the positioning groove to achieve precise alignment. Next, the user rotates the rotating part on the side wall of the sensor module, causing the rotating part to rotate from the first position to the second position. At this time, the locking part of the rotating part engages with the buckle on the wearable base to form a mechanical locking state, completing the entire installation process.

[0057] When the user needs to collect data, the accelerometer and gyroscope in the attitude sensor measure the acceleration and angular velocity data of the sensor module in real time. The signal processing circuit filters and calculates the attitude of the raw measurement data to obtain the attitude angle information of the human joints. The processed attitude data is wirelessly transmitted to an external data receiving device via the wireless communication module, realizing real-time data acquisition and transmission. When the user needs to remove the sensor module, simply rotate the rotating part from the second position to the first position to disengage the rotating part from the locking part, and then gently remove the sensor module by hand. The entire disassembly and assembly process can be completed with one hand without the use of any tools.

[0058] The magnetic quick-release human joint posture real-time acquisition system proposed in this application has the following significant advantages:

[0059] First, it employs a dual fixing mechanism combining magnetic attraction and mechanical locking. Magnetic attraction provides rapid adsorption and alignment; users simply need to bring the sensor module close to the wearable base, and the magnetic force automatically completes the positioning and adsorption, eliminating the need for complex alignment operations. Mechanical locking provides reliable anti-loosening protection; the locking mechanism can withstand significant separation force in the locked state, ensuring that the sensor module maintains a stable connection with the wearable base even under vigorous exercise. This dual fixing mechanism completely solves the technical problems of cumbersome assembly and disassembly of Velcro or mechanical buckles and their tendency to loosen during exercise in existing technologies.

[0060] Secondly, the efficiency of disassembly and assembly is significantly improved. Users can disassemble and assemble the sensor module with one hand, and the entire process from removal to installation takes only a few seconds, greatly improving ease of use. This quick disassembly and assembly function is particularly suitable for scenarios that require frequent changes in sensor positions, such as multi-joint synchronous monitoring and motion capture applications.

[0061] Third, the accuracy and reliability of the collected data are effectively guaranteed. The stable connection between the sensor module and the wearable base ensures the relative stillness of the posture sensor and the human body, avoiding measurement errors caused by sensor loosening or displacement. Meanwhile, the matching design of the positioning protrusion and positioning groove ensures the consistency of the sensor module's position during each installation, facilitating longitudinal data comparison and analysis.

[0062] Fourth, it has a wide range of applications. This system can be applied to multiple fields such as sports medicine analysis, rehabilitation training guidance, athlete movement training, and ergonomics research. By simultaneously wearing sensor modules at multiple joints of the human body, real-time capture and analysis of the whole-body posture can be achieved.

[0063] In summary, the magnetic quick-release human joint posture real-time acquisition system proposed in this application achieves rapid disassembly and reliable locking of the sensor module through a dual fixing mechanism combining magnetic attraction and mechanical locking. This effectively solves the technical problems of cumbersome disassembly and assembly and easy loosening during movement in the prior art. It has the advantages of convenient disassembly and assembly, reliable connection, and accurate data, and provides an effective solution for real-time acquisition of human joint posture.

[0064] Although preferred embodiments of the present application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the embodiments of the present application.

Claims

1. A magnetic quick-release human joint posture real-time acquisition system, comprising a sensor module and a wearable base; the rear surface of the sensor module is provided with a first magnetic attraction part; the front surface of the wearable base is provided with a second magnetic attraction part; the first magnetic attraction part and the second magnetic attraction part are magnetically attracted to each other to realize quick assembly and disassembly connection between the sensor module and the wearable base; the sensor module is further provided with a locking mechanism; the locking mechanism includes a rotating part and a snap fastener; the rotating part is disposed on the side wall of the sensor module and can rotate around an axis; the snap fastener is disposed on the wearable base; characterized in that, When the rotating component rotates to the first position, it disengages from the fastener, allowing the sensor module to be detached from the wearable base. When the rotating component rotates to the second position, it engages with the fastener, locking the sensor module to the wearable base and preventing it from detaching due to vibration during human movement.

2. The magnetic quick-release human joint posture real-time acquisition system according to claim 1, characterized in that, The first magnetic attraction part includes a first magnet; the second magnetic attraction part includes a second magnet adapted to the first magnet; the first magnet and the second magnet are magnetic poles that attract each other, so that the sensor module can be magnetically attracted and fixed to the wearable base.

3. The magnetic quick-release type real-time human joint posture acquisition system according to claim 2, characterized in that, There are multiple first magnets and multiple second magnets; the multiple first magnets are arranged in an array on the rear surface of the sensor module; the multiple second magnets are arranged in an array on the front surface of the wearable base; the multiple first magnets and the corresponding multiple second magnets are magnetically attracted to each other to enhance the adsorption stability between the sensor module and the wearable base.

4. The magnetic quick-release type real-time human joint posture acquisition system according to claim 1, characterized in that, The sensor module also includes a housing; the first magnetic suction part is disposed on the rear surface of the housing; the housing has an internal mounting cavity; the posture sensor is disposed in the mounting cavity; the posture sensor is used to collect posture data of human joints.

5. The magnetic quick-release type real-time human joint posture acquisition system according to claim 4, characterized in that, The attitude sensor includes an inertial measurement unit; the inertial measurement unit includes an accelerometer and a gyroscope; the accelerometer is used to measure triaxial acceleration; the gyroscope is used to measure triaxial angular velocity.

6. The magnetic quick-release type real-time human joint posture acquisition system according to claim 4, characterized in that, The sensor module further includes a signal processing circuit; the signal processing circuit is disposed within the mounting cavity; the attitude sensor is electrically connected to the signal processing circuit; the signal processing circuit is used to filter and calculate the attitude data collected by the attitude sensor to obtain processed attitude data.

7. The magnetic quick-release human joint posture real-time acquisition system according to claim 6, characterized in that, The sensor module further includes a wireless communication module; the wireless communication module is disposed inside the housing and electrically connected to the signal processing circuit; the wireless communication module is used to wirelessly transmit the processed attitude data to an external data receiving device.

8. The magnetic quick-release human joint posture real-time acquisition system according to claim 1, characterized in that, The rotating component includes an operating part and a locking part; the operating part protrudes from the outside of the side wall of the sensor module for manual rotation by the user; the locking part engages with the latching component when the rotating component is rotated to the second position.

9. The magnetic quick-release type real-time human joint posture acquisition system according to claim 1, characterized in that, The fastener includes a fixed base and an elastic latch; the fixed base is fixedly disposed on the wearable base; the elastic latch is disposed on the fixed base and is capable of elastic deformation; when the rotating member rotates to the second position, the locking part presses the elastic latch to cause it to elastically deform and engage in the slot of the locking part to achieve locking.

10. The magnetic quick-release type real-time human joint posture acquisition system according to claim 1, characterized in that, The wearable base includes a base body and connecting straps; the base body has a plate-like structure; the connecting straps are located on both sides of the base body and are used to bind and fix the base body to the human limb.

Images