Intelligent protection system for lower limb joints in movement

Abstract

The invention relates to the technical field of sports protection, in particular to an intelligent protection system for lower limb joints in sports. Comprising a mounting bandage, a wearing support plate, a controller, an attitude sensor and a joint angle sensor, a driving device is arranged on the wearable supporting plate; the controller is arranged on the wearable supporting plate and comprises a data calculation module used for calculating and analyzing data of the attitude sensor and the joint angle sensor and recognizing abnormal signs of a wearer; the emergency warning module is used for sending warning information when abnormal signs are recognized; the alarm module is used for carrying out alarm processing when the warning information is sent out and measures cannot be taken within a preset time; the motion recognition module is used for recognizing the motion type of the wearer through the attitude sensor, generating a wearable supporting plate rigidity control signal according to the joint risk of the motion type, and adjusting the rigidity of the wearable supporting plate through the driving device. According to the technical scheme, the injury risk of lower limb joints in movement can be effectively reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of sports protection, and in particular to an intelligent protection system for lower limb joints during sports. Background Art

[0002] With the acceleration of modern life and the improvement of health awareness, people pay more and more attention to maintaining physical health and shaping their body through exercise. However, although exercise has many benefits to the human body, it also comes with certain risks. In particular, lower limb joints such as knees and ankles are prone to injury during exercise. These joints bear most of the body's weight and exercise load, so they are the high-incidence areas of sports injuries.

[0003] Sports injuries not only cause physical pain to individuals, but may also lead to long-term functional impairments and even affect daily life and work. According to statistics, lower limb joint injuries caused by improper exercise or accidents account for a considerable proportion of all types of sports injuries. Therefore, how to effectively prevent lower limb joint injuries during exercise has become an important issue that needs to be solved in the field of sports science and medicine.

[0004] At present, there are some equipment for protecting lower limb joints on the market, such as knee pads and ankle pads. However, most of these traditional protective equipment can only provide simple physical support and cushioning, and cannot monitor and warn abnormal situations during exercise in real time. Therefore, during exercise, if the wearer has abnormal conditions such as sprains or side pulls, these traditional protective equipment often cannot provide effective protection in time, thereby increasing the risk of sports injuries. Summary of the invention

[0005] The purpose of the present invention is to provide an intelligent protection system for lower limb joints during exercise, and the technical solution can effectively reduce the risk of injury to the lower limb joints during exercise.

[0006] To achieve the above-mentioned purpose, the embodiment of the present disclosure provides an intelligent protection system for lower limb joints in motion, comprising a mounting strap, a wearable support plate, a controller, a posture sensor and a joint angle sensor; the wearable support plate is provided with a driving device; the posture sensor and the joint angle sensor are electrically connected to the controller; The controller is arranged on the wearable support plate, and includes a data calculation module, an emergency warning module, an alarm module and a motion recognition module; The data calculation module is used to calculate and analyze the data of the posture sensor and the joint angle sensor to identify abnormal signs of the wearer; The emergency warning module is used to issue a warning message when abnormal physical signs are identified; The alarm module is used to perform alarm processing when the alarm information is issued and measures are not taken within the preset time; The motion recognition module is used to identify the wearer's motion type through a posture sensor, and generate a wearing support plate stiffness control signal according to the joint risk of the motion type, and adjust the stiffness of the wearing support plate through a driving device.

[0007] Beneficial effects of the basic solution: This technical solution realizes the real-time monitoring, early warning and protection functions of the lower limb joints, effectively reducing the risk of sports joint injuries. The wearable support plate is made of lightweight and high-strength material, with sufficient rigidity and elasticity, and can provide stable support and elastic support for the lower limb joints during exercise. The installation straps are made of elastic materials with good elasticity and breathability, which can adapt to different leg shapes and movement states, ensuring that the system can fit tightly at the joints while ensuring the comfort of the wearer and the portability of the device.

[0008] Through the integration of posture sensors and joint angle sensors, the system can monitor the wearer's movement status and joint angle changes in real time. The data calculation module analyzes these data and can promptly detect and identify abnormal signs, such as excessive bending, twisting or abnormal impact, so as to effectively prevent sports injuries and protect lower limb joints. Appropriate warning and alarm measures can be taken.

[0009] The setting of emergency warning module and alarm module provides two layers of safety protection for the wearer. Once abnormal signs are identified, the system will immediately issue a warning message to remind the wearer to pay attention. If the wearer fails to take measures within the preset time, the system will further upgrade to alarm processing to ensure the timely discovery and resolution of safety issues and reduce sports risks.

[0010] The motion recognition module can intelligently identify the risk level of different sports to the joints according to the wearer's sports type. Based on this recognition result, the system generates a corresponding wear support plate stiffness control signal and dynamically adjusts the stiffness of the support plate through the drive device. This personalized active stiffness adjustment not only improves the wearing comfort, but also provides support and protection according to sports needs. The entire solution effectively reduces the risk of injury to the lower limb joints during exercise by combining passive protection with active protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the architecture of an intelligent protection system for lower limb joints during movement in Example 1.

[0012] Figure 2 Schematic diagram of the structure of an electronic device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0013] In order to make the technical solution and advantages of the present application clearer, the technical solution of the present invention will be further described in detail below in conjunction with the accompanying drawings. It will be understood that the specific embodiments described herein are only partial embodiments of the present invention, which are only used to explain the present application, rather than to limit the present application. It should be noted that the technical features or combinations of technical features described in the following embodiments should not be considered isolated, and they can be combined with each other to achieve better technical effects. The same reference numerals appearing in the drawings of the following embodiments represent the same features or components, which can be applied to different embodiments.

[0014] In addition, unless otherwise defined, the technical terms or scientific terms used in the description of the present invention should have the common meanings understood by those skilled in the art in the art to which the present invention belongs.

[0015] The present invention is further described in detail below in conjunction with the accompanying drawings: Reference numerals: electronic device 500 , processor 501 , communication interface 502 , memory 503 , bus 504 .

[0016] Embodiment 1 Reference Figure 1 , an intelligent protection system for lower limb joints during movement, including a mounting strap, a wearable support plate and a controller.

[0017] The mounting strap is made of elastic material, such as elastic fiber or rubber. The length and width of the mounting strap can be designed according to actual needs to adapt to different leg shapes and movement states. Connectors are provided at both ends of the mounting strap, and the connectors are Velcro or buckles, etc., so that the wearer can adjust and fix them according to needs. In this embodiment, Velcro is provided at both ends of the mounting strap, and the mounting strap is fixed to the knee joint or ankle joint through the bonding effect of Velcro.

[0018] The wearing support plate is made of lightweight and high-strength materials, such as carbon fiber, aluminum alloy or high-strength plastic, and has sufficient rigidity and elasticity to provide stable support for the lower limb joints during exercise. At the same time, when abnormal conditions such as sprains or lateral pulls occur, it can play an elastic supporting role to reduce the impact on the joints. The shape and size of the wearing support plate can be designed according to the anatomical structure and movement characteristics of the lower limb joints to ensure that it can fit tightly at the joints and provide stable support. In this embodiment, the shape of the wearing support plate is arc-shaped, matching the contour of the knee joint or ankle joint. The edge portion of the wearing support plate is provided with a groove for interlocking connection with the corresponding portion of the mounting strap.

[0019] The controller is installed on one side of the wearable support plate, and includes a main control module, a Bluetooth transceiver module, a data calculation module, an emergency warning module, an alarm module, a communication module, and a backup communication module. The housing of the controller is made of waterproof material to ensure that it can work normally in a humid or sweaty environment. In this embodiment, the housing of the controller is preferably made of silicone material, which has good waterproof performance and durability, while ensuring a light weight to reduce the impact on movement.

[0020] The combination of the wearing support plate and the mounting strap adopts an embedded design. Specifically, the edge portion of the wearing support plate is provided with a groove or a protrusion, and the corresponding portion of the mounting strap is provided with a protrusion or a groove matching the groove or the protrusion, and the wearing support plate is fixed to the mounting strap by mutual interlocking. The wearing support plate is fixed to the mounting strap by mutual interlocking, which not only ensures a stable connection between the wearing support plate and the mounting strap, but also makes the overall system more compact and beautiful.

[0021] The main control module of the controller is used to control the operation of the entire system. The main control module receives the processing results from the data calculation module and controls the work of other modules according to the processing results. In this embodiment, the main control module is implemented using a microprocessor chip, such as an ARM Cortex-M series chip.

[0022] The Bluetooth transceiver module is used for wireless communication with external devices. Through the Bluetooth transceiver module, the system can transmit data to external devices such as smartphones or watches to view and analyze data in real time. It is also used to receive control signals sent by external devices to set the device through external devices.

[0023] It also includes a posture sensor and a joint angle sensor, both of which are electrically connected to the controller. The joint angle sensor is installed on the wearable support plate to monitor the angle changes of the joints. The posture sensor includes an acceleration sensor and an angular velocity sensor, which can be set on the wearable support plate or on the mounting strap. In this embodiment, it is installed on the strap for weight considerations; as a preferred solution, by optimizing the structure and material of the wearable support plate and reducing the weight of the wearable support plate, it can also be installed on the wearable support plate, making the strap lighter and more comfortable.

[0024] In one embodiment, the joint angle sensor adopts a Hall angle sensor, which is composed of a Hall sensor chip and a magnet fixed on a relatively rotating part. When the joint rotates, the magnet rotates accordingly, and the magnetic field it generates also rotates. The two orthogonal Hall elements inside the Hall sensor chip can sense the changes in the magnetic field above it, and generate two output induced electromotive forces based on the Hall effect, through which the rotation angle of the joint can be calculated. In another embodiment, the joint angle sensor adopts a miniature angle sensor (such as Measurand ShapeSensor S720), which is made of non-metallic materials and contains sensitive elements inside for detecting the bending and rotation angles of the joint. The sensor outputs a signal proportional to the joint angle, and the precise angle of the joint can be calculated through signal processing.

[0025] The data calculation module is used to analyze the data from the posture sensor and joint angle sensor. First, the received data is preprocessed, such as filtering and denoising, to improve the accuracy and reliability of the data. The processed data is feature extracted and classified using machine learning or deep learning algorithms to identify abnormal signs of the wearer (such as joint sprains, lateral pulls, etc.). Finally, the recognition results are passed to the main control module, which controls the work of other modules according to preset rules and strategies.

[0026] The emergency warning module is used to issue a warning message when abnormal signs are identified. The emergency warning module can adopt different warning methods, such as vibration, sound or light signals, according to the severity of the identification result. In this embodiment, the emergency warning module uses vibration and LED light flashing to warn. When the data calculation module recognizes that the wearer has mild abnormal signs, the emergency warning module only sends a slight vibration; when moderate or severe abnormal signs are identified, the emergency warning module sends a warning of vibration and LED light flashing at the same time.

[0027] The alarm module is used to process alarms in emergency situations. The alarm module can emit alarm information such as sound or light signals to attract the attention of people around and seek help. In this embodiment, the alarm module uses a high-volume buzzer and a red LED light to alarm. When the emergency warning module issues a warning message and the wearer fails to take countermeasures (such as turning off the alarm or removing the device for a physical examination) within the preset time, the alarm module will automatically start and emit strong sound and light signals to attract the attention of people around, so that the wearer can get timely help in a disabled state. The preset time is adjusted according to the severity of the recognition result. The lighter the recognition result, the longer the preset time.

[0028] The communication module is used to upload data to the cloud server when the network condition is good. The communication module can use wireless networks (such as Wi-Fi, 4G / 5G, etc.) for data transmission to ensure the real-time and accuracy of the data. In this embodiment, the communication module adopts Wi-Fi and 4G / 5G dual-mode communication. When the wearer is within the Wi-Fi coverage, the communication module preferentially uses Wi-Fi for data transmission; when the wearer leaves the Wi-Fi coverage, it automatically switches to the 4G / 5G network for data transmission. Through the cloud server, users can view and analyze the wearer's motion data and abnormal physical signs information in real time through terminal devices such as smartphones, watches or computers.

[0029] The backup communication module is used to transmit relevant data to the bound smart terminal through other communication methods when the network signal is poor or the network cannot be connected. The backup communication module can use communication methods such as SMS, Bluetooth, Zigbee, etc. to ensure the stability and reliability of the system in different network environments. In this embodiment, the backup communication module uses Bluetooth and SMS dual-mode communication. When the communication module cannot connect to the network, the backup communication module will automatically start and transmit the data to a nearby smart terminal (such as a mobile phone, tablet computer, etc.) via Bluetooth, or send key information to a preset mobile phone number via SMS.

[0030] The power module is used to provide a stable power supply for the entire system. The power module can be powered by a rechargeable battery or a solar cell to ensure continuous use of the system. In this embodiment, the power module is powered by a rechargeable lithium battery and is equipped with a USB charging port, which is convenient for the wearer to charge at any time.

[0031] The display screen and interactive components are used to realize the interactive operation between the wearer and the system. The display screen can display the system status information, abnormal sign recognition results, specific injury judgment and other information, so that the wearer can check and understand their own condition at any time. Interactive components such as buttons can be used to realize the system's power on and off, function settings and parameter adjustment. In this embodiment, the display screen adopts OLED touch screen technology, which has the advantages of high clarity, low power consumption and convenient operation. The buttons adopt a mechanical button design, which has the characteristics of comfortable feel and good durability.

[0032] Embodiment 2 The technical feature that distinguishes this embodiment from the above-mentioned embodiments is that the controller also includes a body temperature monitoring module, which is used to detect the wearer's body temperature data in real time through a temperature sensor, and compare the collected exercise body temperature data with preset standard body temperature data.

[0033] The standard body temperature data is set based on factors such as the user's personal physique, exercise habits, ambient temperature, and specific exercise type. The user's personalized standard body temperature data can also be generated by collecting the wearer's historical body temperature (for example, through a smart watch with a temperature detection function).

[0034] The temperature difference is obtained by comparison, that is, the deviation between the actual body temperature and the standard body temperature. According to the temperature difference, the current exercise intensity is obtained.

[0035] It is understandable that the device of this system will have a certain warming effect after being worn (beneficial to protecting the joints), so technicians in this field will take this situation into consideration when performing body temperature analysis and correct the local temperature through an algorithm to obtain the correct body temperature of the wearer.

[0036] The wearable support plate is equipped with a drive device and a pressure sensor to adjust the stiffness of the wearable support plate and the joint contact surface according to the wearer's exercise intensity and joint stress conditions. For example, when the wearer performs high-intensity exercise, the wearable support plate can automatically increase stiffness to provide better support; when the wearer performs low-intensity exercise, the wearable support plate can automatically reduce stiffness to improve comfort and flexibility, making the wearable support plate more adaptable to different exercise states and joint stress conditions, and improving the protection effect of the system.

[0037] Conventional techniques in the field of exercise monitoring generally determine the wearer's exercise intensity by monitoring heart rate, but since the system device is worn on the joints, it is not very effective to determine the exercise intensity by heart rate. Therefore, this technical solution can improve the accuracy of judging the exercise intensity in joint protection and can effectively protect the joints according to the exercise intensity.

[0038] Embodiment 3 The controller also includes a motion recognition module, which can detect the acceleration changes caused by the user's steps, jumping, running and other actions through the acceleration sensor, so as to identify what type of exercise the wearer is doing. The angular velocity sensor can provide the user's posture and rotation information during exercise, so as to more accurately identify the user's exercise state, such as judging whether the wearer is performing complex actions such as turning and rolling.

[0039] The motion recognition module generates a wear support plate stiffness control signal according to the identified motion type and the joint risk of the motion type, and adjusts the stiffness of the wear support plate through the driving device. The motion recognition module is also used to generate a wear support plate stiffness additional control signal according to the number and duration of the wearer's complex movements, so as to strengthen the stiffness of the wear support plate, thereby adaptively protecting effectively according to different motions.

[0040] The disclosed embodiment also provides an intelligent protection method for lower limb joints during movement, which utilizes the above-mentioned intelligent protection system for lower limb joints during movement.

[0041] The embodiment of the present disclosure also provides a storage medium, in which a computer program is stored. When the computer program is executed by a processor, all steps of the above-mentioned intelligent protection method for lower limb joints in motion can be implemented.

[0042] Those of ordinary skill in the art can understand that the implementation of all or part of the process in an intelligent protection method for lower limb joints in motion can be completed by instructing related hardware through a computer program, and the program can be stored in a non-volatile computer-readable storage medium. When the program is executed, it can include a process of various embodiments of an intelligent protection method for lower limb joints in motion. Among them, any reference to memory, storage, database or other media used in the embodiments provided in the present application may include non-volatile and / or volatile memory. Non-volatile memory may include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM) or flash memory. Volatile memory may include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in many forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), etc.

[0043] The embodiment of the present application also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of the above-mentioned intelligent protection method for lower limb joints in motion when executing the program. In the embodiment of the present application, the processor is the control center of the computer system, which can be a processor of a physical machine or a processor of a virtual machine.

[0044] Reference Figure 2The electronic device 500 includes: at least one processor 501, at least one communication interface 502, at least one memory 503 and at least one bus 504. The bus 504 is used to realize the connection and communication between these components, the communication interface 502 is used to communicate signaling or data with other node devices, and the memory 503 stores machine-readable instructions executable by the processor 501. When the electronic device 500 is running, the processor 501 communicates with the memory 503 through the bus 504, and when the machine-readable instructions are called by the processor 501, the steps of the intelligent protection method for lower limb joints in motion are executed as described above.

[0045] The above contents are only embodiments of the present invention. The common sense such as the known specific structures and characteristics in the scheme is not described in detail here. The ordinary technicians in the relevant field know all the common technical knowledge in the technical field to which the invention belongs before the application date or the priority date, can obtain all the existing technologies in the field, and have the ability to apply the conventional experimental means before that date. The ordinary technicians in the relevant field can improve and implement this scheme in combination with their own abilities under the enlightenment given by this application. Some typical known structures or known methods should not become obstacles for the ordinary technicians in the relevant field to implement this application. It should be pointed out that for the technicians in this field, without departing from the structure of the present invention, several deformations and improvements can be made, which should also be regarded as the protection scope of the present invention, which will not affect the effect of the implementation of the present invention and the practicality of the patent. The protection scope required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to explain the content of the claims.

Claims

1. An intelligent protection system for lower limb joints during exercise, characterized in that: It includes a mounting strap, a wearable support plate, a controller, a posture sensor and a joint angle sensor; the wearable support plate is provided with a driving device; the posture sensor and the joint angle sensor are electrically connected to the controller; The controller is arranged on the wearable support plate, and includes a data calculation module, an emergency warning module, an alarm module and a motion recognition module; The data calculation module is used to calculate and analyze the data of the posture sensor and the joint angle sensor to identify abnormal signs of the wearer; The emergency warning module is used to issue a warning message when abnormal physical signs are identified; The alarm module is used to perform alarm processing when the alarm information is issued and measures are not taken within the preset time; The motion recognition module is used to identify the wearer's motion type through a posture sensor, and generate a wearing support plate stiffness control signal according to the joint risk of the motion type, and adjust the stiffness of the wearing support plate through a driving device.

2. The intelligent protection system for lower limb joints in motion according to claim 1, characterized in that: The mounting strap is made of elastic material, and connectors are provided at both ends of the mounting strap; the wearing support plate is made of lightweight and high-strength material, and is arc-shaped; The edge portion of the wearing support plate is provided with a groove or a protrusion, and the corresponding portion of the mounting strap is provided with a protrusion or a groove matching the groove or the protrusion, and the wearing support plate is fixed to the mounting strap by mutual engagement.

3. The intelligent protection system for lower limb joints in motion according to claim 1, characterized in that: It also includes a Bluetooth transceiver module for transmitting data to an external device or receiving a control signal sent by an external device.

4. The intelligent protection system for lower limb joints in motion according to claim 1, characterized in that: The joint angle sensor adopts a Hall angle sensor, including a Hall sensor chip and a magnet fixed on a relatively rotating part; the two orthogonal Hall elements of the Hall sensor chip can sense the changes in the magnetic field caused by the magnet driven by the rotation of the joint, and generate two output induced electromotive forces based on the Hall effect, and calculate the rotation angle of the joint through the two induced electromotive forces.

5. The intelligent protection system for lower limb joints in motion according to claim 1, characterized in that: The data calculation module pre-processes the data received from the state sensor and the joint angle sensor, uses a deep learning algorithm to extract features and classify the processed data, and identifies abnormal physical signs of the wearer.

6. The intelligent protection system for lower limb joints in motion according to claim 1, characterized in that: The emergency warning module adopts different warning methods according to the severity of the recognition result; when the data calculation module recognizes that the wearer has mild abnormal signs, the emergency warning module only emits slight vibrations; when moderate or severe abnormal signs are recognized, the emergency warning module simultaneously emits vibrations and LED light flashing warnings.

7. The intelligent protection system for lower limb joints in motion according to claim 6, characterized in that: The system also includes a display screen and an interactive component; the content displayed on the display screen includes system status information and abnormal vital sign recognition results; the interactive content of the interactive component includes system power on and off, function settings and parameter adjustments.

8. The intelligent protection system for lower limb joints in motion according to claim 7, characterized in that: The alarm module uses a high-volume buzzer and a red LED light to give an alarm, and the preset waiting time of the alarm module is adjusted according to the severity of the recognition result.

9. The intelligent protection system for lower limb joints in motion according to claim 8, characterized in that: It also includes a communication module and a backup communication module; the communication module is used to upload data to the cloud network when the network is good, use a multi-mode wireless network for communication, and automatically switch the communication mode according to the signal coverage range; the backup communication module is used to use Bluetooth or Zigbee to transmit data to a nearby smart terminal when the network is poor, or send key information to a preset mobile phone number via text message.

10. The intelligent protection system for lower limb joints in motion according to claim 1, characterized in that: It also includes a power module for providing a stable power supply for the entire system, using a rechargeable battery or a solar cell.

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