A wearable cardiopulmonary monitor and monitoring method

Abstract

The application discloses a wearable cardiopulmonary detector and a monitoring method, and relates to the technical field of cardiopulmonary detection, wherein the detector comprises a wearable carrier, a physiological parameter detection assembly, a motion state monitoring assembly, a protection assembly and an alarm, and a main control box is arranged on the wearable carrier. The main control box arranged on the wearable carrier selectively wakes up part of sensors in the physiological parameter detection assembly according to the motion intensity, realizes continuous monitoring under low power consumption, and calculates a fall risk estimation value by combining heart rate variability data and acceleration trend data, thereby solving the problem that the existing equipment can only be passively monitored and cannot predict the fall risk. When the estimation value exceeds a first threshold value, the main control box controls the inflation assembly to pre-inflate the air bag assembly to a first air pressure, realizes active preparation protection before the fall occurs, controls complete inflation to a second air pressure when it is judged that the fall actually occurs, and combines the alarm to issue an alarm, so that hierarchical buffer protection is provided at the moment of the fall.

Description

Technical Field

[0001] This invention relates to the field of cardiopulmonary detection technology, and in particular to a wearable cardiopulmonary detection device and monitoring method. Background Technology

[0002] With an aging population and increased awareness of health management, wearable medical monitoring devices are being widely used. Existing dynamic cardiopulmonary monitoring vests and other physiological parameter monitoring systems integrate multiple sensors such as blood pressure, heart rate, and respiration, enabling long-term continuous collection of vital signs and remote early warning, providing data support for chronic disease management and health monitoring of the elderly. However, these devices are mostly passive monitoring systems. When a user falls due to a sudden physiological abnormality (such as cardiogenic syncope), although the system can record parameter changes, it cannot provide immediate physical protection and is insufficient to mitigate secondary injuries such as falls.

[0003] There are also active protective devices on the market, such as anti-fall vests, which quickly inflate airbags to form a cushioning layer by detecting a fall, effectively reducing the risk of fractures caused by falls. However, these devices focus on fall posture recognition and physical protection, lacking the ability to continuously monitor and analyze core cardiopulmonary functions such as heart rate variability and respiratory rate. They cannot predict risks caused by physiological abnormalities before a fall, nor can they assess vital signs after a fall, making it difficult to meet the combined needs of high-risk groups for active prevention and comprehensive monitoring. Summary of the Invention

[0004] This invention provides a wearable cardiopulmonary monitoring device and monitoring method, which can solve the problems in the prior art where existing wearable devices cannot simultaneously achieve continuous monitoring of physiological parameters and active fall protection, and it is difficult to predict risks before a fall and provide timely physical protection during a fall.

[0005] A wearable cardiopulmonary monitoring device includes a wearable carrier, a physiological parameter detection component, a motion state monitoring component, a protective component, and an alarm. A main control box is mounted on the wearable carrier. The physiological parameter detection component, mounted on the wearable carrier, includes at least sensors for collecting heart rate and respiratory signals. The motion state monitoring component, mounted on the wearable carrier and electrically connected to the main control box, is used to monitor the user's motion posture data in real time. The protective component includes an airbag assembly and an inflation assembly. The airbag assembly is mounted on the wearable carrier, and the inflation assembly is electrically connected to the main control box. The alarm is electrically connected to the main control box. The main control box selectively activates some sensors in the physiological parameter detection component based on the exercise intensity and integrates heart rate variability data and acceleration trend data to calculate a fall risk prediction. When the prediction exceeds a first threshold, the inflation assembly is controlled to pre-inflate the airbag assembly to a first air pressure. When a fall is determined to have actually occurred, the airbag assembly is fully inflated to a second air pressure, where the second air pressure is greater than the first air pressure.

[0006] The wearable cardiopulmonary monitoring device provided by this invention has, but is not limited to, the following beneficial effects compared with the prior art: This wearable cardiopulmonary monitoring device, through a main control box mounted on the wearable device, selectively activates some sensors in the physiological parameter detection component based on exercise intensity, achieving continuous monitoring with low power consumption. Simultaneously, it integrates heart rate variability data and acceleration trend data to calculate a fall risk prediction, solving the problem that existing devices can only passively monitor and cannot predict fall risk. When the predicted risk exceeds a first threshold, the main control box controls the inflation component to pre-inflate the airbag component to a first pressure, achieving proactive pre-fall protection. When a fall is determined to have actually occurred, it controls full inflation to a second pressure and, combined with an alarm, issues an alert, thus providing tiered buffer protection at the moment of fall. This effectively overcomes the shortcomings of existing protective devices that cannot simultaneously monitor physiological parameters and can only passively respond after a fall. It achieves an integrated closed loop from risk prediction and tiered intervention to physical protection and emergency alarms, meeting the combined needs of high-risk groups for proactive prevention and comprehensive monitoring.

[0007] Furthermore, the main control box includes a low-power motion monitoring unit and a high-precision physiological analysis unit; the low-power motion monitoring unit is always in working state and is used to process data from the motion state monitoring component; the high-precision physiological analysis unit is initially in a sleep state and is only awakened when the low-power motion monitoring unit determines that the user is in a non-stationary state.

[0008] Furthermore, the wearable device is a vest, and the main control box is equipped with a display screen.

[0009] Furthermore, the airbag assembly includes a neck protection airbag, a shoulder protection airbag, a back protection airbag, a spine protection airbag, and a chest protection airbag that are detachably connected to the wearable carrier.

[0010] Furthermore, the physiological parameter detection component also includes a respiration detection component, which includes a mounting plate. A corrugated tubular airbag is disposed inside the mounting plate. One end of the corrugated tubular airbag is connected to a flexible graphene sensor via a connecting rod. A soft pad is disposed on one side of the mounting plate, and a through hole is provided inside the soft pad for the flexible graphene sensor to extend out.

[0011] Furthermore, the inflation assembly includes a compressed air cylinder and a valve connected to the compressed air cylinder. The valve is a proportional regulating valve, and the main control box adjusts the inflation speed and final air pressure of the airbag assembly by controlling the opening degree of the valve.

[0012] Furthermore, the motion state monitoring component includes a speed sensor, an acceleration sensor, and a balance sensor. The main control box determines whether a fall event has actually occurred based on the rate of change of the acceleration sensor per unit time and the output value of the balance sensor, thereby excluding rapid squatting or bending movements.

[0013] Furthermore, it also includes a remote data center, and the main control box is connected to the remote data center via the NB-IoT protocol; when the alarm is triggered, the main control box packages and sends the physiological parameter data and motion posture data within N seconds before the trigger time to the remote data center.

[0014] Furthermore, a heating element is provided on the inner side of the wearable carrier, and the heating element is detachably connected to the wearable carrier via Velcro; a fixing strap for fixation is provided at the bottom of the wearable carrier.

[0015] A wearable cardiopulmonary monitoring method, based on the wearable cardiopulmonary detector, includes the following steps: S1, the motion state monitoring component collects the user's motion posture data in real time, and the main control box selectively wakes up some sensors in the physiological parameter detection component according to the exercise intensity; S2, the woken physiological parameter detection component collects heart rate signals and respiratory signals, extracts heart rate variability data, and the motion state monitoring component continuously collects acceleration trend data; S3, the main control box integrates and analyzes the heart rate variability data and acceleration trend data to calculate the fall risk prediction value; S4, when the fall risk prediction value exceeds a first threshold, the main control box controls the inflation component to pre-inflate the airbag component to a first air pressure; S5, when the main control box determines that a fall event has actually occurred based on the data from the motion state monitoring component, it controls the inflation component to fully inflate the airbag component to a second air pressure and triggers an alarm. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a wearable cardiopulmonary monitoring device according to an embodiment of the present invention; Figure 2 This is a schematic diagram illustrating the use of a wearable cardiopulmonary monitoring device according to an embodiment of the present invention; Figure 3 for Figure 1 Schematic diagram of the structure of the central airbag assembly; Figure 4 for Figure 1 A schematic diagram of the structure of the motion state monitoring component; Figure 5 for Figure 1 A schematic diagram of the structure of the respiratory detection component; Figure 6 for Figure 1 A schematic diagram of the structure of a wearable carrier; Figure 7 for Figure 1 System block diagram of the main control box; Figure 8 This is a flowchart of a wearable cardiopulmonary monitoring method according to an embodiment of the present invention.

[0017] Explanation of reference numerals in the attached figures: 1. Wearable device; 2. Main control box; 3. Physiological parameter detection component; 4. Motion status monitoring component; 41. Speed ​​sensor; 42. Accelerometer; 43. Balance sensor; 5. Airbag component; 51. Neck protection airbag; 52. Shoulder protection airbag; 53. Back protection airbag; 54. Spinal protection airbag; 55. Chest protection airbag; 6. Inflation component; 61. Compressed air cylinder; 62. Valve; 7. Alarm; 8. Display screen; 9. Respiratory detection component; 91. Mounting plate; 92. Corrugated tubular airbag; 93. Connecting rod; 94. Flexible graphene sensor; 95. Soft pad; 96. Through hole; 10. Remote data center; 11. Heating element; 12. Velcro; 13. Fixing strap; 14. Waterproof jacket. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this application clearer, specific embodiments of this application are described clearly and completely below with reference to the accompanying drawings. It should be understood that the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments described in this application without creative effort will fall within the scope of protection of this application.

[0019] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used in the specification of this application is for the purpose of describing specific embodiments only and is not intended to limit this application; the terms "comprising," "including," "having," "containing," "comprise," etc., in the specification, claims, and accompanying drawings of this application are open-ended terms, indicating that a method comprises one or more steps, or an apparatus comprises one or more elements, but do not exclude the inclusion of other steps or elements. The terms "first," "second," etc., in the specification, claims, or accompanying drawings of this application are used to distinguish different objects, not to describe a specific order or primary / secondary relationship. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0020] In the description of this application, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0021] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "attachment" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0022] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0023] like Figure 1-2 As shown in the figure, an embodiment of the present invention provides a wearable cardiopulmonary monitoring device, including a wearable carrier 1, a physiological parameter detection component 3, a motion state monitoring component 4, a protective component, and an alarm 7. A main control box 2 is disposed on the wearable carrier 1; the physiological parameter detection component 3 is disposed on the wearable carrier 1 and includes at least sensors for collecting heart rate and respiratory signals; the motion state monitoring component 4 is disposed on the wearable carrier 1 and electrically connected to the main control box 2 for real-time monitoring of the user's motion posture data; the protective component includes an airbag component 5 and an inflation component 6. The airbag component 5 is disposed on... On the wearable carrier 1, the inflation component 6 is electrically connected to the main control box 2; the alarm 7 is electrically connected to the main control box 2; the main control box 2 selectively wakes up some sensors in the physiological parameter detection component 3 according to the exercise intensity, and calculates the fall risk prediction by integrating heart rate variability data and acceleration trend data; when the prediction exceeds the first threshold, the inflation component 6 is controlled to pre-inflate the airbag component 5 to the first air pressure; when it is determined that a fall has actually occurred, the airbag is fully inflated to the second air pressure, wherein the second air pressure is greater than the first air pressure, and a waterproof jacket 14 is detachably connected to the wearable carrier 1.

[0024] In this embodiment, the main control box 2, mounted on the wearable carrier 1, selectively activates some sensors in the physiological parameter detection component 3 based on the intensity of exercise, achieving continuous monitoring under low power consumption. Simultaneously, it integrates heart rate variability data and acceleration trend data to calculate a fall risk estimate, solving the problem that existing devices can only passively monitor and cannot predict fall risk. When the estimated value exceeds a first threshold, the main control box 2 controls the inflation component 6 to pre-inflate the airbag component 5 to a first air pressure, achieving proactive pre-fall protection. When a fall is determined to have actually occurred, it controls full inflation to a second air pressure and, in conjunction with the alarm 7, issues an alarm, thus providing tiered buffer protection at the moment of fall. This effectively overcomes the shortcomings of existing protective devices that cannot simultaneously monitor physiological parameters and can only passively respond after a fall, achieving an integrated closed loop from risk prediction and tiered intervention to physical protection and emergency alarms, meeting the combined needs of high-risk groups for proactive prevention and comprehensive monitoring.

[0025] The sensors used to collect heart rate and respiratory signals include a heart rate belt and a heart rate sensor; the patient's heart rate is measured by the flexible heart rate sensor, the heart rate data is obtained, and the data is transmitted to the main control box 2.

[0026] like Figure 1 and Figure 2 As shown, the main control box 2 includes a low-power motion monitoring unit and a high-precision physiological analysis unit; the low-power motion monitoring unit is always in working state and is used to process data from the motion state monitoring component 4; the high-precision physiological analysis unit is initially in sleep state and is only awakened when the low-power motion monitoring unit determines that the user is in a non-stationary state.

[0027] In this embodiment, by configuring the main control box 2 to include a low-power motion monitoring unit that is always in working state and a high-precision physiological analysis unit that is initially in sleep state, and having the low-power motion monitoring unit continuously process data from the motion state monitoring component 4, the high-precision physiological analysis unit is only awakened when it is determined that the user is in a non-stationary state, which effectively reduces the overall power consumption of the system, avoids the energy waste caused by the high-precision physiological analysis unit working continuously for a long time, significantly extends the battery life of the wearable cardiopulmonary monitor, and ensures that the high-precision physiological parameter acquisition can be started in time during exercise, thus achieving a balance between energy saving and real-time monitoring.

[0028] Specifically, a low-power motion monitoring unit refers to a hardware processing unit that is always active and operates with extremely low power consumption (such as a low-power microcontroller, a dedicated motion coprocessor, or a simple logic circuit), while a high-precision physiological analysis unit refers to a high-performance computing unit that is initially in a dormant or power-off state (such as a main CPU, DSP, or a dedicated physiological signal processing chip).

[0029] like Figure 1and Figure 2 As shown, the wearable carrier 1 is a vest, and the main control box 2 is equipped with a display screen 8.

[0030] In this embodiment, by setting the wearable carrier 1 as a vest, the device can fit the human torso, which facilitates the stable support and concealed installation of various functional components, improving wearing comfort and convenience of daily activities. At the same time, a display screen 8 is set on the main control box 2, which can intuitively present information such as real-time monitored heart rate, respiration, fall risk prediction and airbag status to the user or caregiver, making it convenient for on-site viewing and timely response, and enhancing the human-computer interaction experience and emergency response efficiency of the device.

[0031] like Figure 1 and Figure 3 As shown, the airbag assembly 5 includes a neck protection airbag 51, a shoulder protection airbag 52, a back protection airbag 53, a spine protection airbag 54, and a chest protection airbag 55, which are detachably connected to the wearable carrier 1.

[0032] In this embodiment, by configuring the airbag assembly 5 to include a neck protection airbag 51, a shoulder protection airbag 52, a back protection airbag 53, a spine protection airbag 54, and a chest protection airbag 55 that are detachably connected to the wearable carrier 1, it is possible to achieve all-round zone protection for key parts of the user's neck, shoulders, back, spine, and chest. In the event of a fall, each airbag is used to buffer the impact force in different areas, significantly improving the protective effect. At the same time, the detachable connection method makes it easy to replace or remove individual airbags according to usage needs, reducing maintenance costs and the difficulty of replacing parts, and enhancing the practicality and flexibility of the device.

[0033] like Figure 1 and Figure 5 As shown, the physiological parameter detection component 3 also includes a respiration detection component 9. The respiration detection component 9 includes a mounting plate 91. A corrugated tubular airbag 92 is provided inside the mounting plate 91. One end of the corrugated tubular airbag 92 is connected to the flexible graphene sensor 94 through a connecting rod 93. A soft pad 95 is provided on one side of the mounting plate 91. A through hole 96 is provided inside the soft pad 95 for the flexible graphene sensor 94 to extend out.

[0034] In this embodiment, when respiratory measurement is required, the flexible graphene sensor 94 can be extended from the through hole 96 and fitted to the skin by inflating the corrugated tubular airbag 92 to drive the connecting rod 93, thereby achieving highly sensitive respiratory signal acquisition. After the measurement is completed, the flexible graphene sensor 94 is retracted to the inside of the soft pad 95 by deflating the airbag, avoiding discomfort caused by prolonged pressure on the skin. This significantly improves wearing comfort while ensuring respiratory monitoring accuracy, and utilizes the good conformal characteristics of the flexible graphene sensor 94 to adapt to the fitting needs of different body types.

[0035] like Figure 1 and Figure 2 As shown, the inflation assembly 6 includes a compressed gas cylinder 61 and a valve 62 connected to the compressed gas cylinder 61. The valve 62 is a proportional regulating valve. The compressed gas cylinder 61 is connected to the airbag assembly 5 through an inflation pipeline. The main control box 2 adjusts the inflation speed and final air pressure of the airbag assembly 5 by controlling the opening degree of the valve 62.

[0036] In this embodiment, the main control module 2 adjusts the inflation speed and final pressure of the airbag assembly 5 by controlling the opening of valve 62. When the estimated fall risk exceeds the first threshold, the main control module 2 can control valve 62 to slowly pre-inflate the airbag assembly 5 to the first pressure with a smaller opening, achieving a comfortable and low-energy-consumption pre-protection state. When a fall is confirmed to have actually occurred, the main control module 2 can control valve 62 to quickly and completely inflate to the second pressure with a larger opening, thereby forming an effective buffer in a very short time. The introduction of the proportional regulating valve enables continuous adjustment of the inflation process, avoiding the limitation of traditional on / off valves that can only be fully open or fully closed. This not only meets the requirements of graded protection but also reduces gas waste and inflation noise, improving the system's response flexibility and reliability.

[0037] like Figure 1 and Figure 3 As shown, the motion state monitoring component 4 includes a speed sensor 41, an acceleration sensor 42, and a balance sensor 43. The main control box 2 determines whether a fall event has actually occurred based on the rate of change of the acceleration sensor 42 per unit time and the output value of the balance sensor 43, so as to exclude rapid squatting or bending movements.

[0038] In this embodiment, by setting the motion state monitoring component 4 to include a speed sensor 41, an acceleration sensor 42, and a balance sensor 43, and the main control module 2 jointly determines whether a fall event has actually occurred based on the rate of change of the acceleration sensor 42 per unit time and the output value of the balance sensor 43, it can effectively distinguish between a real fall and daily actions such as squatting or bending over quickly, avoiding the misinflation of the airbag component 5 due to misjudgment of actions, thereby reducing the waste of protective resources and the discomfort and fright caused to the user by false triggering, and significantly improving the accuracy of fall detection and the reliability of the system.

[0039] like Figure 1 and Figure 7 As shown, it also includes a remote data center 10. The main control box 2 is connected to the remote data center 10 via the NB-IoT protocol. When the alarm 7 is triggered, the main control box 2 packages and sends the physiological parameter data and motion posture data within N seconds before the trigger time to the remote data center 10.

[0040] In this embodiment, when the alarm 7 is triggered, the main control module 2 packages and sends the physiological parameter data and motion posture data within N seconds before the triggering time to the remote data center 10, realizing remote real-time backup and archiving of key data before and after a fall or physiological abnormality event. This facilitates medical staff or family members to retrieve and analyze the user's cardiopulmonary status and motion posture at the time of the incident, providing reliable data for precise rescue and medical diagnosis.

[0041] like Figure 1 and Figure 5 As shown, a heating element 11 is provided on the inner side of the wearable carrier 1, and the heating element 11 is detachably connected to the wearable carrier 1 via Velcro 12; a fixing strap 13 for fixing is provided at the bottom of the wearable carrier 1.

[0042] In this embodiment, by setting a heating element 11 inside the wearable carrier 1 and detachably connecting it to the wearable carrier 1 via Velcro 12, a warm and comfortable wearing experience can be provided to the user in cold environments, promoting local blood circulation and relieving stiffness or fatigue in the shoulder and back muscles. At the same time, the detachable structure facilitates the cleaning, replacement, or maintenance of the heating element 11, reducing the cost of use. A fixing strap 13 is provided at the bottom of the wearable carrier 1 for fixation, which can be adjusted according to the user's body shape to ensure that the wearable carrier 1 is not easily displaced during activities, thereby ensuring that the physiological parameter detection component 3, the motion state monitoring component 4, and the airbag component 5 are always in the accurate working position, improving the reliability of monitoring data and the accuracy of protective actions.

[0043] like Figure 8 As shown, a wearable cardiopulmonary monitoring method, based on a wearable cardiopulmonary detector, includes the following steps: S1, the motion state monitoring component 4 collects the user's motion posture data in real time, and the main control box 2 selectively wakes up some sensors in the physiological parameter detection component 3 according to the exercise intensity; S2, the woken physiological parameter detection component 3 collects heart rate signals and respiratory signals, extracts heart rate variability data, and at the same time, the motion state monitoring component 4 continuously collects acceleration trend data; S3, the main control box 2 fuses and analyzes the heart rate variability data and acceleration trend data to calculate the fall risk prediction value; S4, when the fall risk prediction value exceeds the first threshold, the main control box 2 controls the inflation component 6 to pre-inflate the airbag component 5 to the first air pressure; S5, when the main control box 2 determines that a fall event has actually occurred based on the data from the motion state monitoring component 4, it controls the inflation component 6 to fully inflate the airbag component 5 to the second air pressure and triggers the alarm 7 to issue an alarm.

[0044] In this embodiment, motion state monitoring component 4 collects motion posture data in real time, and main control module 2 selectively wakes up some sensors in physiological parameter detection component 3 according to motion intensity, realizing on-demand monitoring in low-power scenarios; the woken sensors collect heart rate and respiratory signals to extract heart rate variability data, and continuously collect acceleration trend data, providing a multi-dimensional data foundation for fusion analysis; the main control module 2 fuses and analyzes heart rate variability data and acceleration trend data to calculate fall risk prediction, realizing proactive prediction of falls based on physiological and motion fusion; when the prediction exceeds the first threshold, the inflation component 6 controls the airbag component 5 to pre-inflate to the first air pressure, realizing graded preparatory protection; when an actual fall occurs, the airbag is fully inflated to the second air pressure and the alarm 7 is triggered to issue an alarm, realizing timely buffer protection and emergency alarm at the moment of fall, thus completely solving the problems in the prior art that cannot simultaneously realize continuous monitoring of physiological parameters and proactive fall protection, and that it is difficult to predict risks before a fall and provide timely physical protection during a fall.

[0045] The above-disclosed embodiments are merely a few specific examples of the present invention. However, the embodiments of the present invention are not limited thereto, and any variations that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A wearable cardiopulmonary monitoring device, characterized in that, include: Wearable carrier (1), on which a main control box (2) is provided; The physiological parameter detection component (3) is disposed on the wearable carrier (1) and includes at least a sensor for collecting heart rate signals and respiratory signals; The motion state monitoring component (4) is mounted on the wearable carrier (1) and electrically connected to the main control box (2) for real-time monitoring of the user's motion posture data; The protective component includes an airbag assembly (5) and an inflation assembly (6), wherein the airbag assembly (5) is disposed on the wearable carrier (1) and the inflation assembly (6) is electrically connected to the main control box (2); The alarm (7) is electrically connected to the main control box (2); The main control box (2) selectively wakes up some sensors in the physiological parameter detection component (3) according to the exercise intensity, and calculates the fall risk estimate by integrating heart rate variability data and acceleration trend data; when the estimate exceeds the first threshold, it controls the inflation component (6) to pre-inflate the airbag component (5) to the first air pressure; when it is determined that a fall has actually occurred, it controls the full inflation to the second air pressure, wherein the second air pressure is greater than the first air pressure.

2. The wearable cardiopulmonary monitoring device as described in claim 1, characterized in that, The main control box (2) includes a low-power motion monitoring unit and a high-precision physiological analysis unit; the low-power motion monitoring unit is always in working state and is used to process data from the motion state monitoring component (4); The high-precision physiological analysis unit is initially in a dormant state and is only awakened when the low-power motion monitoring unit determines that the user is not in a stationary state.

3. The wearable cardiopulmonary monitoring device as described in claim 1, characterized in that, The wearable carrier (1) is a vest, and the main control box (2) is equipped with a display screen (8).

4. The wearable cardiopulmonary monitoring device as described in claim 1, characterized in that, The airbag assembly (5) includes a neck protection airbag (51), a shoulder protection airbag (52), a back protection airbag (53), a spine protection airbag (54), and a chest protection airbag (55) that are detachably connected to the wearable carrier (1).

5. The wearable cardiopulmonary monitoring device as described in claim 1, characterized in that, The physiological parameter detection component (3) also includes a respiratory detection component (9), which includes a mounting plate (91). The mounting plate (91) has a corrugated tubular airbag (92) inside. One end of the corrugated tubular airbag (92) is connected to the flexible graphene sensor (94) via a connecting rod (93). A soft pad (95) is provided on one side of the mounting plate (91), and a through hole (96) is provided inside the soft pad (95) for the flexible graphene sensor (94) to extend out.

6. The wearable cardiopulmonary monitoring device as described in claim 1, characterized in that, The inflation assembly (6) includes a compressed air cylinder (61) and a valve (62) connected to the compressed air cylinder (61). The valve (62) is a proportional regulating valve. The main control box (2) adjusts the inflation speed and final air pressure of the airbag assembly (5) by controlling the opening degree of the valve (62).

7. The wearable cardiopulmonary monitoring device as described in claim 1, characterized in that, The motion state monitoring component (4) includes a speed sensor (41), an acceleration sensor (42) and a balance sensor (43). The main control box (2) determines whether a fall event has actually occurred based on the rate of change of the acceleration sensor (42) per unit time and the output value of the balance sensor (43), so as to exclude rapid squatting or bending movements.

8. The wearable cardiopulmonary monitoring device as described in claim 1, characterized in that, It also includes a remote data center (10), and the main control box (2) is connected to the remote data center (10) via the NB-IoT protocol; when the alarm (7) is triggered, the main control box (2) packages and sends the physiological parameter data and motion posture data within N seconds before the trigger time to the remote data center (10).

9. The wearable cardiopulmonary monitoring device as described in claim 1, characterized in that, A heating element (11) is provided on the inner side of the wearable carrier (1), and the heating element (11) is detachably connected to the wearable carrier (1) via Velcro (12); a fixing strap (13) for fixing is provided at the bottom of the wearable carrier (1).

10. A wearable cardiopulmonary monitoring method, characterized in that, The wearable cardiopulmonary monitoring device used in any one of claims 1-9 comprises the following steps: S1. The motion state monitoring component (4) collects the user's motion posture data in real time, and the main control box (2) selectively wakes up some sensors in the physiological parameter detection component (3) according to the motion intensity. S2. The awakened physiological parameter detection component (3) collects heart rate and respiratory signals and extracts heart rate variability data. At the same time, the motion state monitoring component (4) continuously collects acceleration trend data. S3, the main control box (2) integrates and analyzes the heart rate variability data and acceleration trend data to calculate the fall risk estimate; S4. When the estimated risk of falling exceeds the first threshold, the main control box (2) controls the inflation component (6) to pre-inflate the airbag component (5) to the first air pressure. S5. When the main control box (2) determines that a fall event has actually occurred based on the data from the motion state monitoring component (4), it controls the inflation component (6) to fully inflate the airbag component (5) to the second air pressure and triggers the alarm (7) to issue an alarm.

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