Wearable exercise monitoring device and emergency help system

Abstract

The invention relates to the field of wearable monitoring equipment related to an emergency system. The invention provides wearable exercise monitoring equipment and an emergency help system. The equipment adopts a self-adaptive pressure regulation mechanism, and ensures the accuracy of physical sign monitoring through precise mechanical design and intelligent control. The emergency help system adopts a lift-off image technology and a field hydrogen generation technology, provides rich audio-visual information in emergency, and remarkably improves the rescue efficiency. According to the system, pressure adjustment is achieved through the temperature memory alloy tension spring and the heating wire, meanwhile, real-time monitoring is conducted through the micro Hall sensor, and the accuracy and stability of pressure adjustment are ensured. According to the technical scheme, the system and the method have remarkable advantages in the aspects of monitoring precision, emergency rescue effect and use safety, have important significance in improving life quality and preventing acute disease deterioration, and have huge potential in the aspect of rescuing the life of a patient.

Description

Technical Field

[0001] The present invention belongs to the field of wearable monitoring equipment and emergency assistance systems, and in particular, relates to a sports monitoring device and emergency response system for patients with cardiovascular and cerebrovascular diseases. The system is designed to monitor the patient's physiological state in real time during exercise, prevent and respond to possible acute deterioration of the condition, and ensure the safety of the patient during exercise. The system is not only suitable for patients with cardiovascular and cerebrovascular diseases who need long-term monitoring of their health status, but also pays special attention to sudden dangerous conditions that may be encountered during exercise, and provides patients with timely and effective emergency assistance services. Background Art

[0002] In recent years, the number of patients with cardiovascular and cerebrovascular diseases in my country has been rising year by year, and the incidence, death and disability-adjusted life years of cardiovascular diseases have increased sharply, indicating that the prevention and treatment of cardiovascular diseases faces huge challenges. The "Cardiovascular and Cerebrovascular Disease Prevention and Treatment Action" was established among the 15 special actions of the "Healthy China Action (2019-2030)", and the work goal was clearly stated. By 2030, the mortality rate of cardiovascular and cerebrovascular diseases will drop to 190.7 / 100,000 or below. These diseases not only seriously affect the quality of life of patients, but also bring great pressure to the medical system.

[0003] In this context, wearable health monitoring devices, with their advantages of portability and continuous monitoring, have gradually become an important tool for the management of cardiovascular and cerebrovascular diseases. These devices are usually worn on the wrist and can continuously monitor the user's physiological parameters, such as heart rate, blood pressure, blood oxygen saturation, etc., providing long-term and stable data support for medical professionals, thereby facilitating early warning of cardiovascular and cerebrovascular diseases and the formulation of personalized treatment plans.

[0004] However, existing wearable devices still have some technical problems that need to be solved: 1. Data accuracy issues: Most devices use photoplethysmography (PPG) or other optical technologies to monitor vital signs, and their accuracy is highly dependent on the quality of contact between the sensor and the skin. However, in daily activities, especially during exercise, the device often moves or becomes loose, resulting in poor contact, which in turn generates a lot of noise and artifacts, seriously affecting the reliability of the data. Studies have shown that during exercise, the error rate of PPG signals can be as high as 30% or more. The reliability issues regarding contact between the contact and the skin are also mentioned in the invention patent authorization announcement number CN 106999048 B. These issues indicate that in order to improve the data accuracy and reliability of physiological monitors, it is necessary to further optimize sensing technology and device design.

[0005] 2. Contradiction in wearing comfort: In order to improve the contact problem, some manufacturers have adopted the strategy of increasing the tension of the wristband. However, although this approach can improve data accuracy in the short term, long-term wearing will lead to problems such as skin compression and blood circulation obstruction. For patients with cardiovascular and cerebrovascular diseases who are already weak, this discomfort may lead to a decrease in compliance and eventually give up using the device.

[0006] 3. Limitations of the emergency help function: Patients with cardiovascular and cerebrovascular diseases face a higher risk of sudden emergencies, such as cardiac arrest. Although existing wearable devices generally have emergency call functions, their effectiveness is seriously questioned. Traditional SOS buttons or gesture recognition technology require users to maintain sufficient awareness and ability to act in critical moments. According to data from the American Heart Association, in the case of cardiac arrest, most patients (more than 80%) will lose consciousness within 90 seconds and will not be able to actively seek help.

[0007] 4. Insufficient information dimension: Even if the device successfully sends out an emergency alarm, the information transmitted is often limited to simple alarm signals and GPS locations. The lack of a detailed description of the patient's current state and surrounding environment makes it difficult for the rescue team to assess the severity of the situation, prepare appropriate rescue equipment, or choose the best approach route. Relevant studies have pointed out that in cases of out-of-hospital cardiac arrest, improper handling due to insufficient on-site information is the main reason for delayed treatment.

[0008] In view of the existing technical challenges, the invention of authorization announcement number CN 108135534 B has launched an innovative chronic disease monitoring and management system. The system consists of physiological monitors and management devices working together to accurately capture and transmit physiological data in real time, and conduct in-depth analysis to assess the risk of deterioration. After algorithm optimization and device performance improvement, the system has significantly improved monitoring accuracy and optimized the wearing experience. Although the system has made significant progress in the field of chronic disease management, it still needs further improvement in terms of the specific needs of patients with cardiovascular and cerebrovascular diseases.

[0009] For example, how to further improve the accuracy and reliability of the data to ensure that each monitoring result can provide reliable health reference for patients with cardiovascular and cerebrovascular diseases; how to provide faster and more professional help channels in emergency situations to ensure that users can get timely assistance when encountering health emergencies; and how to more effectively integrate and utilize diverse health data resources to give full play to the value of data in cardiovascular and cerebrovascular disease management.

[0010] It is worth noting that whole-brain angiography, as the "gold standard" for diagnosing cerebrovascular diseases, can clearly display the status of intracranial large blood vessels and collateral circulation, providing a good platform for interventional treatment. However, this method is mainly used for hospital diagnosis and cannot meet the needs of daily monitoring.

[0011] The present invention is a new solution proposed to address these challenges, aiming to significantly improve the efficiency and safety of cardiovascular and cerebrovascular disease management, especially in real-time monitoring and emergency response in daily life and exercise. Summary of the invention

[0012] In view of this, the present invention provides an innovative wearable motion monitoring device and emergency assistance system, which ensures high accuracy of vital sign monitoring through an adaptive pressure regulation mechanism, and utilizes an original aerial image assistance system and on-site hydrogen generation technology to provide rich audio-visual information in emergency situations, greatly improving the timeliness and effectiveness of rescue, and fully embodying the cutting-edge application of miniaturization and intelligent design in the medical field.

[0013] The technical solution of one of the subjects of the embodiments of the present invention is implemented as follows: a wearable motion monitoring device, comprising: a) The main device is designed in the shape of a watch and is internally integrated with a microprocessor, memory, wireless communication module, GPS positioning module, acceleration sensor and gyroscope, so as to achieve comprehensive health data collection and accurate motion status analysis; b) The wristband; c) The base is fixedly connected to the main device; d) The installation compartment is integrated with or fixedly connected to the base; e) The vital sign monitoring auxiliary mechanism is set in the installation compartment and directly acts on the wristband, including: The guide rail is tilted on the inner wall of the installation bin; the driving rod is connected to the guide rail by sliding or rolling at one end, and the other end extends toward the wristband and is equipped with a universal joint at the end; the wristband push rod is connected to the universal joint at one end through a telescopic compensator, and the other end is a ball joint; the driving source includes a temperature memory alloy tension spring and a heating wire; the adaptive control unit is based on an ARM processor and runs an AI model to dynamically adjust the optimal pressure range; Through precise mechanical design and intelligent control, the above mechanism ensures that the device always adheres to the skin with optimal pressure, greatly improving the accuracy and reliability of monitoring various vital signs.

[0014] According to a preferred embodiment, the guide rail is made of high-strength, low-friction engineering plastic, chrome-plated on the surface, and designed into a micro-arc shape, thereby ensuring smooth and durable movement of the drive rod, reducing power consumption and extending the service life of the equipment.

[0015] According to a preferred embodiment, the telescopic compensator uses a micro spring made of a high-elastic alloy with a designed telescopic range of 3-5 mm, which can effectively buffer the tiny displacement between the device and the skin, improve wearing comfort and maintain stable pressure.

[0016] According to a preferred embodiment, the ball joint and the ball joint seat are made of ceramic material, allowing full range adjustment of ±45° to adapt to the wrist curvature and range of motion of different users and ensure constant and comfortable contact pressure.

[0017] According to a preferred embodiment, the temperature memory alloy tension spring is a Nitinol alloy, and a heating wire made of a high resistance alloy is tightly wound on its surface. Its unique thermal response characteristics are utilized to achieve precise and reversible pressure regulation while improving the system response speed.

[0018] According to a preferred embodiment, a micro Hall sensor is further included to detect the deformation of the temperature memory alloy tension spring to form a closed-loop feedback system, thereby achieving real-time monitoring of the tension spring deformation and ensuring the accuracy and stability of pressure regulation.

[0019] The technical solution of another subject of the embodiment of the present invention is implemented as follows: a wearable emergency assistance system, characterized in that it includes: a) a main device, which is designed in the shape of a watch, and has a microprocessor, a memory, a wireless communication module and a GPS positioning module integrated therein to realize health monitoring and communication functions; b) an installation compartment, connected to the main device, wherein there are: a storage compartment for storing hydrogen or helium; a gas valve, whose opening and closing switch is made of a hard and fragile material for quick start; a balloon, whose air nozzle has been pre-airtightly connected; a miniature camera, connected to the balloon; c) a cover, which is rotatably connected to the installation compartment; d) a flexible heating film, which is embedded under the heat-sensitive adhesive layer between the cover and the installation compartment; e) a starter, which is used to puncture the switch of the gas valve; f) a cutoff piece, which is used to cut off the air nozzle of the balloon; g) a control unit, based on a dual-core ARM processor, for evaluating the user's health status and controlling the system operation; Through innovative aerial imaging technology and intelligent control, the system provides rich audio-visual information in emergency situations, greatly enhancing the information dimension of requests for help and improving the timeliness and effectiveness of rescue.

[0020] According to a preferred embodiment, the storage cabin is made of aerospace-grade composite materials and lined with a Teflon layer, with a design pressure of 20 MPa, ensuring the safe storage of a large amount of gas in a small volume, suitable for the design of watch size.

[0021] According to a preferred embodiment, it also includes a cable pulling system, which uses high-strength carbon fiber lines and is equipped with tension sensors and brakes to achieve precise control of the balloon's height and maximize the field of view coverage.

[0022] According to a preferred embodiment, the miniature camera uses a high-definition CMOS sensor, is equipped with a wide-angle lens and optical image stabilization function, and adopts a flexible PCB design to adapt to changes in the shape of the balloon while ensuring image quality.

[0023] According to a preferred embodiment, the flexible heating film is made of graphene material, which has extremely high thermal conductivity and low heat capacity, achieving rapid and uniform heating and shortening emergency response time.

[0024] According to a preferred embodiment, a chemical reaction system is also included for generating hydrogen on site, the system comprising: a) a double-layer isolation reaction chamber, arranged on the side of the installation chamber; b) a NaBH4 storage system, using an EVAC bag filled with 40% NaBH4 hydrogel, providing a high energy storage density and stable hydrogen source; c) a modular catalytic reactor, using a 3D-printed titanium alloy porous structure, with a RuCl3 catalyst loaded on the surface, to achieve efficient and controllable generation of hydrogen; d) an intelligent injection system, including a micro peristaltic pump and a MEMS flow sensor, to ensure the precise delivery of reaction reagents; e) a thermal management module and a gas processing unit, to effectively control the reaction temperature and ensure the purity of hydrogen; By using a chemical reaction system, this design overcomes the safety risks of high-pressure storage, while taking advantage of the high energy storage properties of borohydride to achieve a large-capacity hydrogen supply in a miniaturized device.

[0025] Compared with the prior art, the technical solution of the present invention has the following advantages: 1. This innovative wearable sports monitoring device and emergency assistance system uses adaptive actuator technology to ensure that the device always maintains optimal contact pressure with the skin, significantly improving the accuracy of vital sign monitoring; 2. Its unique aerial imaging assistance system uses a miniature camera balloon that is quickly launched by light gas to provide real-time multi-angle environmental and patient status video in emergency situations, greatly enhancing the dimension of assistance information; 3. The solution of using chemical reaction to generate hydrogen on site not only solves the safety hazard of high-pressure storage, but also realizes the rapid, clean and adjustable generation of hydrogen. It fully demonstrates the significant advantages of this technology in improving monitoring accuracy, enhancing emergency rescue effects and ensuring safety of use, which is of great significance for saving lives. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a structural schematic diagram of another angle of the present invention as a whole; Figure 3 It is a structural diagram of the base and the installation chamber; Figure 4 It is a schematic diagram of the overall structure of the present invention, and an exploded diagram of the components: an air valve, a starter, an uninflated balloon, a truncation piece, and a miniature camera; Figure 5 It is a front view of the present invention, wherein the cover is not opened; Figure 6 for Figure 5 Axonometric drawing after sectioning along the section plane BB; Figure 7 Components: Structural diagram of telescopic compensator, ball joint, drive source, cover, and heating film; Figure 8 This is a schematic diagram of the application after the emergency assistance system is activated; Fig. 9 This is a logic block diagram of the chemical reaction system in Example 2.

[0028] Figure numerals: main device 10, wristband 20, base 30, installation chamber 40, vital sign monitoring auxiliary mechanism 50, guide rail 51, drive rod 52, universal joint 53, wristband push rod 54, telescopic compensator 541, ball joint 542, ball joint 543, drive source 55, storage cabin 41, air valve 42, starter 421, balloon 43, cut-off piece 431, micro camera 44, cover 45, heating film 46, chemical reaction system 90, double-layer isolation reaction chamber 901, NaBH4 storage system 902, modular catalytic reactor 903, intelligent liquid injection system 904, thermal management module 905, gas processing unit 906, safety and control unit 907. DETAILED DESCRIPTION

[0029] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0030] The embodiments of the present invention are described in detail below in conjunction with all the accompanying drawings.

[0031] Example 1 The embodiment of the present invention provides a wearable sports monitoring device and an emergency assistance system, which is usually worn on the wrist. Its uniqueness lies in that a rod mechanism is designed at the connecting end of the device and the wristband, which can push the wristband outward to change the device from a loose state to a state close to the skin. This adaptive push rod technology automatically adjusts during the monitoring process to ensure that the device and the skin always maintain the optimal contact pressure, thereby significantly improving the accuracy and reliability of various vital signs monitoring, and solving the common problem of data deviation caused by poor contact between the contact and the skin in the prior art.

[0032] In addition, in response to the dilemma that patients may be unable to actively sound the alarm in an emergency, the present invention innovatively proposes an emergency assistance system that uses aerial imaging for assistance. The system is integrated with the main device and includes a storage space with a miniature camera and an uninflated balloon, a pre-connected air valve, and a hydrogen or helium storage compartment connected to the air valve. When the main device detects a potential emergency event through continuously monitored physiological data, the system is immediately activated: the air valve automatically opens, and the stored hydrogen or helium is quickly filled into the balloon. The lightweight properties of these gases are used to quickly lift the balloon into the air, and the final height is limited by the length of the rope.

[0033] As the balloon rises, the camera attached to its surface can capture real-time images of the surrounding environment and patient conditions from multiple angles and heights. More advanced, the camera can also directly establish a video connection with the medical staff at the terminal to provide dynamic audio-visual information on the scene. This design not only overcomes the limitation of traditional equipment that only sends abstract distress signals, but also greatly enhances the information dimension of the request for help by providing rich environmental and patient status data.

[0034] More importantly, the present invention also deeply integrates this innovative device with the existing medical information infrastructure, achieving seamless connection between personal health data, professional medical resources and emergency response systems, and forming a new model for cardiovascular and cerebrovascular disease management: 1. Intelligent medical resource linkage: When the device detects a critical condition (such as abnormal acceleration of heart rate, sharp drop in blood oxygen saturation, etc.), it will not only start the traditional emergency procedure, but also immediately push the alarm information to the health service center or contracted family doctor in the patient's community. This function is based on the hierarchical diagnosis and treatment and family doctor contract service policies that have been vigorously promoted in recent years. By establishing a direct connection with these medical resources, this system can mobilize the medical force closest to and most familiar with the patient's condition within the golden rescue time. For example, when 70-year-old Mr. Zhang suddenly suffered arrhythmia while jogging in the community, his watch immediately sent an alarm to his contracted doctor Li. As Mr. Zhang's family doctor for 5 years, Dr. Li was not only able to rush to the scene at the first time, but also quickly judge the condition and implement personalized first aid measures based on the understanding accumulated from long-term follow-up.

[0035] 2. Real-time retrieval and intelligent analysis of health records: The present invention also embeds a "health record chip" in the device. This chip uses secure distributed storage technology to synchronize and store the patient's electronic health records in various medical institutions in real time. More advanced is that this device is equipped with a "medical record intelligent analysis engine" based on deep learning. Once the emergency mode is triggered, the engine will quickly extract key disease information from a large amount of medical record text, such as the main diagnosis, allergy history, medication records, etc., and convert it into a structured first aid guide. Taking Mr. Zhang just now as an example, when the ambulance arrived, the first aid personnel's terminal device would immediately receive a concise and comprehensive "first aid file". These accurate medical history information provides valuable diagnosis and treatment guidance for the first aid team, avoids the risk of blind medication, and helps them quickly lock in the possible cause of arrhythmia during morning jogging (hypoglycemia), so as to implement targeted treatment.

[0036] Specifically, refer to Figure 1-3 , the monitoring device of the present invention comprises: 1. Main device 10: It is designed in the shape of a watch for daily wear. It integrates a microprocessor, memory, wireless communication modules (such as Wi-Fi, Bluetooth, 4G / 5G), GPS positioning module, acceleration sensor and gyroscope (for monitoring motion status and fall detection), power management system and rechargeable lithium battery. The device shell is made of lightweight and durable aviation-grade aluminum alloy or titanium alloy to ensure strength while minimizing weight. The front is equipped with a high-definition touch OLED or AMOLED display, which supports multi-touch and gesture operation to present various monitoring data and interactive interfaces. In addition, an SOS emergency button and microphone are also provided on the side of the main device 10 for voice interaction and emergency calls. In addition to various sensors, there is also a wireless charging coil on the back of the device, which supports Qi standard wireless charging function.

[0037] 2. Wristband 20: Made of highly elastic, breathable and sweat-resistant medical-grade silicone or TPU material, with conductive fibers embedded inside to enhance signal transmission. The wristband is designed with multiple preset holes to facilitate adjustment of tightness to suit different users.

[0038] 3. Base 30: It is fixedly connected to the main device 10 through a special waterproof and dustproof bolt or a quick-detachable magnetic interface, which is convenient for device maintenance and replacement. The base material is made of medical-grade stainless steel or titanium alloy with good biocompatibility, and the surface is specially treated to reduce skin allergic reactions.

[0039] 4. Mounting chamber 40: integrally formed with base 30 or fixedly connected by high-strength epoxy resin, using the same biocompatible material. The chamber is designed to be streamlined to reduce the impact on the user's daily activities. The chamber is equipped with a waterproof sealing gasket and a micro exhaust valve to ensure the safe operation of the internal electronic components in various environments.

[0040] 5. Vital sign monitoring auxiliary mechanism 50: This mechanism is one of the cores of the present invention, refer to Figure 2 , 6 , 7, is arranged in the installation compartment 40 and directly acts on the wristband 20. The main components include: a. Guide rail 51: It is tilted on the inner wall of the installation chamber 40 and is preferably made of high-strength, low-friction engineering plastics (such as PEEK or POM), and the surface is chrome-plated to enhance wear resistance. The rail is designed in a micro-arc shape to ensure a smooth transition when the drive rod 52 moves.

[0041] b. Driving rod 52: One end is rollingly connected to the guide rail 51 through a micro ball bearing, and the other end freely extends toward the wristband 20 and is equipped with a universal joint 53. The rod body is made of aviation-grade aluminum alloy or titanium alloy, and the surface is anodized to improve strength and reduce weight.

[0042] c. Universal joint 53: Made of precision-machined stainless steel, it has a double bearing structure inside, allowing full-range angle adjustment of ±30° to ensure the best force direction at various wearing angles.

[0043] d. Wristband push rod 54: one end is connected to the universal joint 53 by setting a telescopic compensator 541; the other end is set as a ball joint 542, passing through the bottom of the wristband 20 and fixedly set on the main device 10 or the base 30. The telescopic compensator 541 is a micro spring made of a high elastic alloy (such as beryllium copper or Invar alloy), which is set between the wristband push rod 54 and the universal joint 53. Its design telescopic range is 3-5mm, which is used to compensate for the extra length required for the wristband push rod 54 to tilt during work, and can also absorb impact and improve wearing comfort. The ball joint 542 and the ball joint 543 are made of ceramic materials (such as zirconium oxide), with extremely low friction coefficient and high wear resistance, allowing full range adjustment of ±45° to adapt to different wrist curvatures.

[0044] e. Driving source 55: The main driving device is a temperature memory alloy (SMA) tension spring, such as Nitinol alloy. It is in a relaxed state at room temperature and contracts after heating to provide a stable tension; A heating wire made of a high-resistance alloy (such as Constantan) is tightly wound on the surface of the SMA tension spring. When powered on, it quickly heats up to about 60°C, triggering the phase change of the SMA. In order to achieve precise control, a micro Hall sensor is also integrated to detect the deformation of the SMA tension spring to form a closed-loop feedback system; The power supply can be independently set (such as using a button battery), or the power supply of the main device 10 can be referenced and the voltage can be adjusted through a low-power DC-DC converter.

[0045] f. Pressure sensor array: embedded in one end of the wristband push rod 54 to monitor the contact pressure between the device and the skin in real time.

[0046] g. Adaptive control unit: Based on the low-power 32-bit MCU of the ARM Cortex-M4F series, with built-in DSP and FPU units; runs specially designed AI models (such as the lightweight TensorFlow Lite model) to dynamically adjust the optimal pressure range according to parameters such as skin characteristics and movement status of different users; analyzes the data of the pressure sensor array in real time to detect areas of poor contact or overpressure; accurately adjusts the contraction force of the SMA tension spring by controlling the heating time and power of the driving source 55, thereby fine-tuning the position and pressure of the push rod; has a self-learning function to optimize the personalized pressure model over time; communicates with the main device 10 through an I²C or SPI interface to share data and power management.

[0047] The working principle is: when it is detected that the device is not in good contact with the skin (such as movement causing displacement), the adaptive control unit activates the driving source 55 and applies a specific current to the SMA tension spring. The SMA quickly heats up and contracts, driving the driving rod 52 to slide outward through the guide track 51. The movement is transmitted to the wristband push rod 54 via the universal joint 53 and the telescopic compensator 541, which pushes the wristband 20 to make the device close to the skin again.

[0048] Throughout the process, the pressure sensor array continuously monitors the contact status, and the data is fed back to the control unit in real time. The control unit calculates the precise thrust required based on the AI ​​algorithm and adjusts the heating parameters of the SMA accordingly. Once the optimal pressure is reached, the system will maintain that state. If the pressure is too high, the control unit will reduce the heating power and allow the SMA to partially cool down to reduce the thrust.

[0049] Another core part of the present invention: the aerial image assistance system, refer to Figure 1-6 ,include: 1. Storage compartment 41: An independent high-pressure sealed area is separated in the installation compartment 40 for storing hydrogen or helium. It is made of aerospace-grade composite materials (such as carbon fiber reinforced epoxy resin) and lined with a Teflon layer to prevent gas leakage. The design pressure reaches 20MPa and can safely store about 100mL of compressed gas.

[0050] 2. Air valve 42: It is fixedly installed at the outlet of storage compartment 41 and is made of high-precision stainless steel or titanium alloy to ensure sealing and pressure resistance. Its opening and closing switch is made of high borosilicate glass around the outer ring, with a thickness of about 0.5mm, and is specially heat-treated to enhance strength while maintaining the characteristic of easy and precise splitting.

[0051] 3. Balloon 43: Made of high-strength, low-permeability ETFE material, it is resistant to high temperatures (up to 200°C) and UV rays. The balloon is designed in a fan-shaped structure for easy folding and storage. The air nozzle uses a special quick-connect connector, which has been pre-connected to the air valve 42 to ensure high efficiency and safety during inflation.

[0052] 4. Micro camera 44: It uses a high-definition CMOS sensor (such as Sony IMX378), which is only 8x8mm in size and has a resolution of 12 million pixels. It is equipped with a wide-angle lens (viewing angle 140°) and optical image stabilization. It adopts a flexible PCB design and can be directly adhered to the surface of the balloon 43 without affecting its expansion. It has a built-in small lithium battery and Wi-Fi / 4G module (the working power is provided by the main device when it is not separated from the warehouse), and supports real-time video transmission of 1080p@60fps.

[0053] 5. Cable system: It uses high-strength carbon fiber cable with a diameter of 0.3mm and a tensile strength of more than 50kg. One end is connected to the balloon 43, and the other end is wound on the reel in the installation chamber 40. The reel is equipped with a tension sensor and a brake, which can dynamically adjust the release speed according to the balloon's rising speed and limit the maximum height (such as 2m).

[0054] 6. Starter 421: It can be a miniature electromagnetically driven impact device, using rare earth permanent magnets and high-speed electromagnetic coils. When activated, it instantly generates acceleration, accurately punctures the glass switch of the air valve 42, and realizes rapid start.

[0055] 7. Cut-off piece 431: A shearing mechanism made of shape memory alloy (such as copper-aluminum-nickel alloy). When powered on and heated, it deforms quickly to generate a strong shearing force, accurately cutting off the nozzle of the balloon 43 to release the balloon.

[0056] 8. Cover 45: Made of carbon fiber reinforced polycarbonate material, it is strong and lightweight. It is designed to be slightly convex to improve the structural strength. A lens perspective hole with a diameter of about 10 mm is provided in the center, covered with high-transmittance tempered glass. It is connected to the installation chamber 40 through a micro stainless steel hinge, allowing one-way opening.

[0057] 9. Sealing and releasing mechanism: a. A special heat-sensitive adhesive (such as Nitto Denko's heat-sensitive type) is used between the cover 45 and the mounting chamber 40 to provide strong adhesion and sealing at room temperature.

[0058] b. A flexible heating film 46 with a thickness of only 0.1 mm is embedded under the adhesive layer. The film is made of graphene material and has extremely high thermal conductivity and low heat capacity.

[0059] c. The heating film 46 can be connected to an independent button battery, or can be connected to the power supply of the main device 10 through a low-power DC-DC boost module.

[0060] d. When an emergency situation is detected, the heating film 46 is rapidly heated to about 70°C, softening the heat-sensitive adhesive and reducing the adhesive strength to a level that can be opened by a balloon.

[0061] 10. Control unit: Based on a dual-core ARM processor (such as the STM32H7 series), one core is responsible for real-time data analysis and the other core manages system operations.

[0062] Real-time assessment of user health status through multi-parameter fusion algorithms (including heart rate variability, blood oxygen saturation, body temperature, etc.); Built-in machine learning models (such as LSTM networks) to identify abnormal patterns of individuals based on historical data; Set multiple levels of warning thresholds, such as mild abnormality (sound reminder), moderate abnormality (try voice interaction), and severe abnormality (immediately activate the help system); When a severe abnormality is detected, the control unit simultaneously executes: a) starting the heating film 46 to soften the cover; b) activating the starter 421 to puncture the air valve; c) notifying the main device 10 to send the GPS location and the preset emergency information; Monitor the inflation state of the balloon, and activate the cut-off piece 431 to release the balloon when the preset volume is reached; An encrypted wireless connection is established with the micro camera 44 to transmit the video stream in real time to the cloud server and the designated medical terminal.

[0063] Working principle (refer to Figure 8 ): When the device continuously monitors the user's physiological data and finds that it is seriously abnormal (such as cardiac arrest, a sharp drop in blood oxygen) and cannot be responded to through voice interaction, the control unit immediately determines it as an emergency. The system quickly performs the following steps: The S1 heating film 46 heats up rapidly, and the heat-sensitive adhesive softens, which greatly reduces the adhesion of the cover 45.

[0064] The S2 starter 421 impacts the glass switch of the air valve 42 at high speed and accurately punctures it.

[0065] S3 High-pressure hydrogen or helium is instantly released from the storage cabin 41 and quickly fills the balloon 43.

[0066] S4 As the balloon 43 expands, the pressure inside it increases rapidly, easily breaking through the softened cover 45.

[0067] S5 When the balloon 43 reaches a preset volume or the tension of the pulling wire reaches a set value, the cutting piece 431 is energized and heated, the shape memory alloy is deformed and the nozzle of the balloon is accurately cut off.

[0068] The S6 balloon 43 is lifted off at a speed of about 0.1-0.2 m / s, while the reel steadily releases the pull line to control the rhythm of the ascent. During the ascent, a micro camera 44 attached to the surface of the balloon 43 captures high-definition images of the surrounding environment and the user's status from multiple angles.

[0069] S7 imaging data is transmitted to the cloud in real time via 4G or Wi-Fi and pushed directly to the mobile devices of the medical emergency team and family members.

[0070] S8 At the same time, the host device 10 sends the user's precise GPS location, medical records and emergency contact information.

[0071] The innovation of this design lies in: 1. Use high-pressure storage and light gases to achieve fast and stable liftoff; 2. Intelligent release mechanism using thermal adhesive and heating film; 3. Integrated high-definition micro camera provides real-time multi-angle video; 4. Material selection focuses on lightness, high strength and safety; 5. The entire process is fully automated and is suitable for emergency situations where users are unable to seek help on their own.

[0072] This system not only overcomes the limitation of traditional equipment that only sends abstract signals, but also greatly enhances the information dimension of emergency assistance by providing rich audio-visual and environmental data, providing key basis for emergency personnel to formulate optimal rescue strategies, thereby significantly improving the timeliness and effectiveness of rescue.

[0073] Example 2 Based on Example 1, the present invention innovatively uses a chemical reaction method to generate hydrogen on site to replace the high-pressure hydrogen storage device in the aerial image assistance system. Specifically, the hydride hydrolysis method is used, and the selection of this method is based on the following considerations: 1. High safety: The reaction process is mild, without violent heat release or generation of harmful gases; 2. Controllable reaction: The hydrogen generation rate can be precisely controlled by adjusting the reagent contact area and catalyst activity; 3. High purity of hydrogen: the by-product NaBO2 is stable and insoluble in water and will not pollute hydrogen; 4. High energy storage density: Each gram of NaBH4 can produce 2.4L of hydrogen (under STP conditions), which is much higher than the same volume of compressed gas; 5. Stable raw materials: NaBH4 is chemically stable under dry conditions and is suitable for long-term storage.

[0074] Although the cost of hydride inhalation is relatively high, considering that the device only requires about 1-2g each time, and in emergency equipment related to life safety, reliability and efficiency are the primary considerations.

[0075] Specific implementation of the plan (see Fig. 9 ): 1. System layout: Based on Example 1, the original high-pressure hydrogen storage cabin is removed and the space is transformed into a chemical reaction system 90.

[0076] 2. Double-layer isolation reaction chamber 901: a. Located on the side of the installation chamber 40, it is made of aerospace-grade carbon fiber composite material, having both high strength (compressive strength> 200MPa) and lightness; b. The interior is a double-layer design: the inner layer is used for chemical reactions, the outer layer is used as a containment shell, and the space between the two layers is filled with 3M microporous insulation material; c. Designed with a micro pressure reducing valve and a double safety valve to ensure that the internal pressure does not exceed 2MPa.

[0077] 3.NaBH4 storage system 902: a. Use an extremely airtight ethylene fluorinated acrylate (EVAC) bag filled with 40% NaBH4 hydrogel (1% hydroxyethyl cellulose is added for thickening); b. The gel state improves storage stability and reduces precipitation; c. The capacity is about 3mL, providing more than 2L of hydrogen; d. The outer layer is covered with ePTFE membrane, which is waterproof and breathable, keeping NaBH4 dry.

[0078] 4. Modular Catalytic Reactor 903: a. Use 3D printed titanium alloy porous structure to provide large specific surface area; b. Nanoscale RuCl3 catalyst (3wt%) was loaded on the surface after surface plasma treatment to increase the reaction rate; c. The interior is designed as a maze-like flow channel to extend the contact time of reactants; d. Can be quickly disassembled and replaced for easy maintenance and recycling.

[0079] 5. Intelligent injection system 904: a. Micro peristaltic pump, using alkali-resistant hose; b. MEMS flow sensor, accuracy up to 0.1μL / min; c. Precisely control NaBH4 injection according to the required hydrogen amount and rate.

[0080] 6. Thermal management module 905: a. High thermal conductivity plate made of graphene / copper composite material; b. Phase change material (PCM) filling layer, using octadecyl octadecanoate (melting point about 55°C) to absorb the reaction heat; c. The outer periphery is made of aluminum fins to increase the heat dissipation area; d. Integrated temperature control chip (such as TI's TMP112) to accurately monitor the temperature.

[0081] 7. Gas processing unit 906: a. Nano-grade stainless steel membrane filter, pore size 5nm, removes any tiny particles; b. Proton exchange membrane, selectively removes water vapor; c. Small activated carbon tank to absorb possible organic impurities; d. Finally, the purity of hydrogen is detected by MEMS gas sensor array.

[0082] 8. Safety and control unit 907: a. Real-time monitoring of hydrogen concentration sensor and pressure sensor; b. Double solenoid valves, one for main control and the other for mechanical overpressure protection; c. Ultra-low power MCU based on STM32L4+ series with built-in advanced digital signal processor; d. Run a specially designed fuzzy logic control algorithm to adaptively adjust hydrogen generation based on launch requirements and environmental conditions; e. Communicate with the master device 10 via encrypted BLE 5.0.

[0083] Working principle: 1. Daily status: All components are in standby mode, power consumption is extremely low (<10μW). The double-layer reaction chamber 901 is sealed, the intelligent injection system 904 is closed, and the safety valve is closed.

[0084] 2. Warning state: When the main device 10 detects that the user's physiological data tends to be abnormal, the control unit preheats the catalytic reactor 903 to the optimal temperature (about 50° C.) and performs a small amount of reagent mixing test to ensure that the system is ready.

[0085] 3. Emergency start: a master device 10 is determined to be a serious emergency; b start the main device 10 in the heating film 46, so that the adhesive cover 45 softens; c. At the same time, the control unit activates the starter 421 to puncture the glass seal of the air valve 42 at high speed.

[0086] 4. Hydrogen generation: a. The intelligent injection system 904 accurately pumps the NaBH4 gel into the catalytic reactor 903 according to a preset algorithm; b. NaBH4 quickly comes into contact with the catalyst and immediately begins a violent reaction: NaBH4 + 2H2O → 4H2 + NaBO2 + heat; c. The generated hydrogen is purified by the gas processing unit 906 and then filled into the balloon 43.

[0087] 5. Temperature control: a. The exothermic reaction is rapidly absorbed by the PCM layer of the thermal management module 905; b. Excess heat is transferred to the external fins through the high thermal conductivity plate and then dissipated into the environment.

[0088] 6. Balloon release and launch: a. When the balloon 43 is inflated to a predetermined volume or the internal pressure reaches a threshold value, the valve 42 is automatically closed; b. The cut-off piece 431 is electrically heated to precisely cut off the balloon nozzle; c. The balloon 43 filled with hydrogen easily breaks through the softened cover 45 and quickly rises into the air; d. At the same time, the reel releases the pull line steadily to dynamically control the height of the balloon.

[0089] This innovative chemical hydrogen generation system not only perfectly solves the safety risks of high-pressure storage, but also realizes the rapid, clean and adjustable on-site generation of hydrogen through precise reaction control and material engineering. The modular and intelligent design ensures the high reliability and flexibility of the system in emergency situations.

[0090] Despite the higher initial cost, this design has significant advantages in safety, efficiency and sustainability in the long run. Through professional recycling and regeneration, core components such as catalysts and NaBH4 can be recycled, greatly reducing operating costs. More importantly, in life-threatening emergencies, the speed, reliability and adaptability of this technology will undoubtedly save countless precious lives, fully demonstrating the lofty value of science and technology in the humanitarian field.

[0091] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of various changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A wearable sports monitoring device, characterized in that: include: a) a main device (10), designed in the shape of a watch, internally integrating a microprocessor, a memory, a wireless communication module, a GPS positioning module, an acceleration sensor and a gyroscope; b) Wrist strap (20); c) a base (30), fixedly connected to the main device (10); d) a mounting chamber (40) integrally or fixedly connected to the base (30); e) a vital sign monitoring auxiliary mechanism (50), which is arranged in the installation compartment (40) and directly acts on the wristband (20), comprising: A guide track (51) is obliquely arranged on the inner wall of the installation bin (40); A driving rod (52), one end of which is connected to the guide rail (51) by sliding or rolling, and the other end of which extends toward the wristband (20) and is provided with a universal joint (53); A wrist strap push rod (54), one end of which is connected to the universal joint (53) through a telescopic compensator (541), and the other end of which is set as a ball joint (542); The driving source (55) comprises a temperature memory alloy tension spring and a heating wire.

2. The wearable motion monitoring device according to claim 1, characterized in that: The guide rail (51) is made of high-strength, low-friction-coefficient engineering plastics, has a chrome-plated surface, and is designed to be in a micro-arc shape.

3. The wearable motion monitoring device according to any one of claims 1 or 2, characterized in that: The telescopic compensator (541) is a micro spring made of a high-elastic alloy, and has a designed telescopic range of 3-5 mm.

4. The wearable motion monitoring device according to any one of claims 1 or 3, characterized in that: The ball joint (542) and the ball joint seat (543) are made of ceramic material and allow full range adjustment of ±45°.

5. The wearable motion monitoring device according to claim 1, characterized in that: The temperature memory alloy tension spring is a Nitinol alloy, and a heating wire made of a high resistance alloy is tightly wound on the surface of the temperature memory alloy tension spring.

6. The wearable motion monitoring device according to claim 1, characterized in that: It also includes a micro Hall sensor for detecting the deformation of the temperature memory alloy tension spring to form a closed-loop feedback system.

7. A wearable emergency assistance system, characterized in that: include: a) a main device (10), which is designed in the shape of a watch and has a microprocessor, a memory, a wireless communication module and a GPS positioning module integrated therein; b) an installation chamber (40), connected to the main device (10), wherein: A storage chamber (41) for storing hydrogen or helium; The air valve (42) is fixedly installed at the outlet of the storage compartment (41), and its opening and closing switch is made of a hard and breakable material; A balloon (43), the air nozzle of which has been pre-airtightly connected to the air valve (42); A miniature camera (44) connected to the balloon (43); c) a cover (45) rotatably connected to the mounting bin (40); d) a flexible heating film (46) embedded below the heat-sensitive adhesive layer between the cover (45) and the mounting chamber (40); e) an actuating member (421), used to pierce the switch of the air valve (42); f) a cut-off piece (431) for cutting off the air nozzle of the balloon (43); g) Control unit, based on a dual-core ARM processor, is used to assess the user's health status and control system operations.

8. The wearable emergency assistance system according to claim 7, characterized in that: The storage cabin (41) is made of aerospace-grade composite material and is lined with a Teflon layer, with a design pressure of 20 MPa.

9. The wearable emergency assistance system according to claim 7, characterized in that: It also includes a pulling wire system, which uses a high-strength carbon fiber wire, one end of which is connected to the balloon (43) and the other end is wound on a reel in the installation bin (40), and the reel is equipped with a tension sensor and a brake.

10. The wearable emergency assistance system according to claim 7, characterized in that: The micro camera (44) uses a high-definition CMOS sensor, is equipped with a wide-angle lens and an optical image stabilization function, and adopts a flexible PCB design.

11. The wearable emergency assistance system according to claim 7, characterized in that: The flexible heating film (46) is made of graphene material and has extremely high thermal conductivity and low heat capacity.

12. The wearable emergency assistance system according to any one of claims 7 to 11, characterized in that: Also included is a chemical reaction system for generating hydrogen on site, the system comprising: a) a double-layer isolation reaction chamber (901), arranged on the side of the installation chamber (40); b) a NaBH4 storage system (902) using an EVAC bag filled with 40% NaBH4 hydrogel; c) a modular catalytic reactor (903), which adopts a 3D-printed titanium alloy porous structure and has a RuCl3 catalyst loaded on the surface; d) an intelligent liquid injection system (904), comprising a micro peristaltic pump and a MEMS flow sensor; e) Thermal management module (905) and gas handling unit (906).

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