System and device for measuring adult cardiopulmonary endurance

Abstract

The invention discloses a system and a device for measuring the cardiopulmonary endurance of an adult, and relates to the technical field of cardiopulmonary endurance measurement. The system comprises a power vehicle, a heart rate acquisition module, a data processing module, a motion control and voice guide module, a load regulation and control module, a result output and data management module, a safety monitoring and stopping module and a user interaction module, and the power vehicle comprises a positioning base, a supporting seat, a vehicle frame, a counting and power utilization mechanism and a measurement and power recovery mechanism. A stable and controllable physical exercise platform and an adjustable load system are provided, a heart rate collection module collects heart rate data of a subject in the resting and exercise process in real time, and the heart rate data serve as a VOmax estimation core basis. And data of more dimensions can be incorporated during formula calculation of the maximum oxygen uptake, so that the effect is better.

Description

Technical Field

[0001] The present invention relates to the technical field of cardiopulmonary endurance measurement, in particular to a system and device for measuring the cardiopulmonary endurance of adults. Background Art

[0002] Cardiopulmonary endurance comprehensively reflects the body's ability to absorb, transport, and utilize oxygen. It involves the heart's pumping function, the lungs' ability to absorb and exchange oxygen, the efficiency of the blood circulation system in carrying oxygen to all parts of the body, and the ability of muscles and other tissues to utilize oxygen. Measuring cardiopulmonary endurance is of great significance for subjects to understand their physical condition and guide fitness training. For example, a cardiopulmonary endurance measurement method and system based on smart wearable devices has been disclosed. Application number CN202011096062.9. This patent uses smart wearable devices, system control modules, wireless communication modules, and user terminal processing modules to calculate and evaluate cardiopulmonary endurance and display data. However, when measuring cardiopulmonary endurance, it is inconvenient to recover and utilize the power generated by riding, resulting in a waste of power. In addition, when measuring cardiopulmonary endurance, high-intensity exercise is required, which easily leads to muscle fatigue. Therefore, in order to avoid the above technical problems, it is necessary to provide a system and device for measuring adult cardiopulmonary endurance and overcome the above defects in the prior art. Summary of the Invention

[0003] The present invention provides a system and device for measuring the cardiopulmonary endurance of adults, which can effectively solve the problems raised in the above-mentioned background technology, such as the inconvenience in recovering and utilizing the power generated by riding, resulting in power waste. In addition, when measuring cardiopulmonary endurance, high-intensity exercise is required, which easily leads to muscle fatigue.

[0004] To achieve the above-mentioned object, the present invention provides the following technical solutions: a system for measuring cardiopulmonary endurance of adults, comprising a power bike, a heart rate acquisition module, a data processing module, a motion control and voice guidance module, a load regulation module, a result output and data management module, a safety monitoring and suspension module, and a user interaction module; The power car includes a positioning base, a support base, a frame, a counting and power utilization mechanism, and a measurement and power recovery mechanism, providing a stable and controllable physical motion platform and an adjustable load system; The heart rate acquisition module collects the subject's heart rate data at rest and during exercise in real time as the core basis for VO2max estimation; The data processing module calculates the maximum oxygen uptake (VO2max) and cardiopulmonary endurance level based on the collected heart rate data, subject information and load intensity; The motion control and voice guidance module guides the subject to complete a standard rhythm cycling task through voice; The load control module automatically sets and switches the load level of the power vehicle according to preset rules and user input information to ensure that the test intensity is moderate; After the test is completed, the result output and data management module will perform visual display of the subject results, report generation and data storage management; The safety monitoring and suspension module performs abnormal warning and test suspension control through real-time heart rate monitoring and user operation authority; The user interaction module serves as the information interaction interface between people and equipment and is responsible for the graphical presentation of all test operations and feedback.

[0005] According to the above technical solution, the power bike is adjustable to suit different test subjects' heights, provides two power load levels, level one and level two, and supports a fixed cadence of 60 rpm. The heart rate acquisition module uses an LED photoelectric sensor heart rate belt, which is worn on the inner side of the midpoint of the right upper arm. It supports both static and dynamic acquisition modes. After startup, the LED sensor lights up to confirm that it fits the skin, and it is wirelessly synchronized to the host system in real time. The data processing module collects the subject's age, gender, weight, resting heart rate, and exercise heart rate, and models the heart rate response according to the first and second load stages, and also adds a local sample adjustment coefficient; The motion control and voice guidance module voice prompts the riding rhythm: maintain 60 rpm, guides the test process: start, load switching, remaining time prompt, end; The load control module automatically calls the power level that matches the subject according to the submaximal load scheme matched with the age and gender; The result output and data management module outputs VO2max value, heart rate response curve, exercise level recommendation, generates electronic or paper reports, and records and archives historical records; The safety monitoring and termination module and the user interaction module set the heart rate safety threshold, and automatically alarm if it exceeds the limit. If extreme data or connection failure occurs, the test will be automatically paused, and the user can click the "Cancel Test" button to exit at any time. If the test is abnormal, the user can choose whether to retain some data; The user interaction module displays the real-time test status, including heart rate curve, time, rhythm, and presents a test result interface.

[0006] According to the above technical solution, in terms of exercise time, the exercise load of the subject in the motion control and voice guidance module is to stimulate the frequency rhythm of the voice prompts first. The subject completes continuous exercise with 2 levels of load at a constant speed of 60 seconds / revolution, 3 minutes per level, and a total of 6 minutes. This allows the subject's cardiopulmonary related systems to tolerate the load for a longer time, inducing a true reflection of their cardiopulmonary endurance level.

[0007] According to the above technical solution, in the result output and data management module test, the subject performs a loaded cycling exercise at a speed of 60 revolutions per minute for 7 minutes at the beat frequency. After the 7-minute exercise, the heart rate sensor automatically transmits the test data to the host, and the host calculates and displays and saves the results according to the formula; The smart detection bracelet is internally installed with a heart rate acquisition module; A data processing module is installed inside the receiving display terminal.

[0008] According to the above technical solution, a device for measuring cardiopulmonary endurance of adults, according to a test device for a system for measuring cardiopulmonary endurance of adults, a support base is installed on the top of the positioning base, the top of the support base is connected to the frame, and a counting and power utilization mechanism is provided inside the support base, and the counting and power utilization mechanism includes a power chamber; A power chamber is provided inside the support seat, a sealed splicing cover is connected to the power chamber, a power-assisting rotating rod is rotated inside the sealed splicing cover, riding pedals are installed at both ends of the power-assisting rotating rod, a counting rotating disk is sleeved on the outside of the power-assisting rotating rod, and an extrusion block is clamped on the outside of the counting rotating disk; The bottom end of the power chamber is clamped with a mounting groove, and a turn counter is installed inside the mounting groove; The bottom end of the frame is clamped with a riding bracket, a driven rod is rotated inside the riding bracket, and sprockets are sleeved on the outside of the driven rod and the outside of the power-assisting rotating rod, and a chain is sleeved on the outside of the sprocket.

[0009] According to the above technical solution, the sealing splicing cover is connected to the inner wall of the power cavity through threads, there are two sealing splicing covers and two counting rotary disks, the extrusion block is arc-shaped, and the lap counter is powered by an internal power supply.

[0010] According to the above technical solution, the inner wall of the mounting groove is connected to an arc-shaped pad via a thread, and a reciprocating slide rod is symmetrically and movably connected inside the arc-shaped pad. The bottom ends of the two reciprocating slide rods are clamped with a touch pressure plate, and a return spring is clamped between the touch pressure plate and the arc-shaped pad at a position corresponding to the outer side of the reciprocating slide rod, and the top end of the reciprocating slide rod is clamped with an arc-shaped pad; Material toggling mechanism, its both sides respectively have a cylinder pressure, and the cylinder pressure bar connects swing arm, and the swing arm end face has hook portion, and a bar passes position between the end of two swing arms and the hook portion. The two swing arms and the hook portion can be adjusted according to the situation that the two swing arms are in a state of being out of the way of each other.

[0011] According to the above technical solution, the bottom end of the translation slide is slidably connected to the top of the positioning base, a knob is fixedly sleeved at the bottom position of the outer side of the adjustment vertical cylinder, threads are provided at the bottom position of the outer side of the lifting sleeve rod, both ends of the spliced ​​horizontal plate are rotatably connected to the inner wall of the rotating frame, and a rubber sleeve is sleeved on the outer side of the roller.

[0012] According to the above technical solution, a measurement and power recovery mechanism is provided at one end of the positioning base, and the measurement and power recovery mechanism includes a power transmission gear; The outer side of the driven rod is symmetrically sleeved with a power transmission gear, and the two ends of the riding bracket are connected to the outer side of the power transmission gear by bolts. The top of the positioning base is symmetrically connected with a positioning block, the interior of the positioning block is rotatably connected to a rotating shaft, the outside of the rotating shaft is fixedly sleeved with a driven gear, small generators are installed at positions on both sides of the top of the positioning base corresponding to the rotating shaft, a storage slot is opened at one side of the top of the positioning base, a battery is embedded in the storage slot, and a rectifier is connected to the storage slot at a position corresponding to one side of the battery by bolts; A supporting inclined plate is movably connected to one side position of the top end of the frame, and splicing protrusions are clamped at both ends of the supporting inclined plate and both ends of the frame, and the inner wall of the splicing protrusion on the frame is connected to an adjusting strut through a thread, and a receiving display terminal is connected to the top end of the supporting inclined plate through a bolt, and an L-shaped frame is clamped at one end of the supporting inclined plate, and winding drums are rotatably connected at the top positions of both ends of the L-shaped frame, and traction ropes are wound around the outsides of the two winding drums, and a wearable breathing detection sensor is installed at the other end of one of the traction ropes, and a smart detection bracelet is installed at the other end of the other traction rope.

[0013] According to the above technical solution, dust covers are connected to the outside of the small generator and battery corresponding to the top of the positioning base by bolts. The small generator and the battery are electrically connected, and the battery and the rectifier are electrically connected. The receiving and display terminal, the wearable breathing detection sensor and the smart detection bracelet are all powered by an internal power supply, and the signal output ends of the lap counter, the wearable breathing detection sensor and the smart detection bracelet are all connected to the input end of the receiving and display terminal.

[0014] Compared with the prior art, the present invention has the following beneficial effects: the structure of the present invention is scientific and reasonable, and it is safe and convenient to use: 1. A counting and power utilization mechanism is set up, and the power-assisted rotating rod is conveniently limited inside the power chamber through a sealed splicing cover, which improves the convenience of disassembly and assembly. Then, the sprocket, chain, driven rod, driving turntable and traction pull plate cooperate to slide the translation slide back and forth on the positioning base, so as to convert the rotational power generated by riding during cardiopulmonary endurance measurement to prevent power waste. Subsequently, the position of the pushing frame is adjusted according to the height of the rider by adjusting the cooperation of the vertical cylinder, lifting sleeve, pushing frame, rotating frame and roller. When the translation slide slides back and forth, the roller is pushed up and down on the rider's back to circulate and squeeze and roll, so as to relax the rider's muscles, have the effect of relaxing tendons and activating blood circulation, and relieve muscle soreness, thereby improving the power utilization rate and increasing the function and adaptability of the device. In addition, the rotating frame is limited by the cooperation of the limiting anti-deflection plate, telescopic slide rod and splicing horizontal plate to ensure the squeezing and rolling effects. Through the cooperation of the power-assisted rotating rod, counting rotary disk, squeezing block, arc-shaped pad, reciprocating slide rod, touch pressure plate and lap counter, during the cardiopulmonary endurance measurement process, the number of rotations is recorded every time the cycling pedal is rotated one circle. This cycle continues, and the number of laps ridden during the cardiopulmonary endurance measurement is counted, which is convenient for subsequent viewing and improves convenience.

[0015] 2. A measurement and power recovery mechanism is set up. Through the cooperation of the driven rod, power transmission gear, driven gear, rotating shaft, small generator, battery and rectifier, it is convenient to convert the power generated by cycling into electrical energy during cardiopulmonary endurance measurement and store it in the battery to prevent power waste. At the same time, the stored electricity can be provided to the measurement sensor, achieving self-sufficiency, improving resource utilization and reducing resource waste. The wearable respiratory detection sensor and the smart detection bracelet work together to measure and record the rider's breathing and pulse while riding, facilitating subsequent cardiopulmonary endurance measurements. The measured data is remotely transmitted to a receiving display terminal for easy observation, improving convenience. The L-shaped frame, reel, and traction rope make it easy to lift and place the wearable respiratory detection sensor and the smart detection bracelet when not in use, improving storage convenience. In addition, by adjusting the coordination between the support rod and the splicing protrusion, the height of the supporting inclined plate can be adjusted according to needs, which makes it easier for riders of different heights to hold it, more convenient for observation, and improves adaptability.

[0016] 3. Scientifically reflect the subject's cardiopulmonary endurance level. The secondary load test on the ergometer is a submaximal, quantitative load test. This load has research support at home and abroad for inducing cardiopulmonary endurance validity. The test load is appropriate and the test risk is low. In addition, the rhythm is unified and the exercise time is consistent. For the subjects who complete the test, it is a relatively quantitative load, ignoring the weight factor. The subject compliance in the evaluation is good. At the same time, the warm-up at the primary load and the exercise at the secondary load lasting 6 minutes can allow the subject's cardiopulmonary system to tolerate the load for a longer time, inducing a true reflection of their cardiopulmonary endurance level. From a mathematical point of view, the primary and secondary loads in the secondary ergometer load test can provide more cardiopulmonary response conditions at low and moderate intensities, and can conduct different levels of investigation on low and moderate mobilization of cardiopulmonary endurance. When calculating the maximum oxygen uptake formula, more dimensional data can be included, which is more effective. High safety, the secondary load of the power car is a submaximal load exercise test, which is easy to test and has low risk, and is suitable for large sample testing; It is highly feasible and is a quantitative load test with a test duration of 6 minutes. At the same time, it has low requirements for the site. In addition, the second-level load test of the power bike is consistent with the daily cycling action, which is more familiar to the public and has good compliance. The method is also easier to standardize and is convenient for promotion and use.

[0017] In summary, through the cooperation of the counting and power utilization mechanism and the measuring and power recovery mechanism, the power generated by riding is transmitted when measuring cardiopulmonary endurance while riding, and then the rider's back muscles are squeezed and rolled during riding to relax the back muscles, thereby achieving the effect of relaxing muscles and activating blood circulation and preventing muscle soreness. At the same time, the power generated by riding can also be converted into electricity and stored to facilitate the subsequent operation of the device and provide electricity, thereby increasing energy utilization and reducing resource waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0019] In the attached figure: Figure 1 It is a schematic diagram of the system structure of the present invention; Figure 2 It is a schematic diagram of the structure of the device of the present invention; Figure 3It is a structural diagram of the counting and power utilization mechanism of the present invention; Figure 4 This invention Figure 3 Schematic diagram of the structure of area A; Figure 5 Schematic diagram of the installation structure of the driven rod of the present invention; Figure 6 Schematic diagram of the installation structure of the rotating frame of the present invention; Figure 7 This is a schematic diagram of the installation structure of the power transmission gear of the present invention; Figure 8 It is a structural schematic diagram of the measurement and power recovery mechanism of the present invention; Figure 9 It is a schematic diagram of the installation structure of the adjusting support rod of the present invention.

[0020] Numbers in the figure: 1, positioning base; 2, support base; 3, frame; 4. Counting and power utilization mechanism; 401. Power chamber; 402. Sealed splicing cover; 403. Power-assisted rotating rod; 404. Riding pedal; 405. Counting rotating disk; 406. Extrusion block; 407. Mounting slot; 408. Lap counter; 409. Riding bracket; 410. Driven rod; 411. Sprocket; 412. Chain; 413. Arc pad; 414. Reciprocating slide; 415. Touch pressure plate; 416. Return spring; 417. Arc pad; 418. Driving turntable; 419. Traction pull plate; 420. Translation slide; 421. Adjustment vertical cylinder; 422. Lifting sleeve rod; 423. Pushing frame; 424. Rotating frame; 425. Roller; 426. Limiting anti-deflection plate; 427. Telescopic slide; 428. Splicing horizontal plate; 429. Support spring; 5. Measurement and power recovery mechanism; 501. Power transmission gear; 502. Safety shield; 503. Positioning block; 504. Rotating shaft; 505. Driven gear; 506. Small generator; 507. Storage tank; 508. Battery; 509. Rectifier; 510. Support ramp; 511. Splicing protrusion; 512. Adjustment strut; 513. Receiving display terminal; 514. L-shaped frame; 515. Winding drum; 516. Towing rope; 517. Wearable breathing detection sensor; 518. Smart detection bracelet. DETAILED DESCRIPTION

[0021] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention. Example

[0022] like Figure 1-2As shown, the present invention provides a technical solution, a system for measuring the cardiopulmonary endurance of adults, including a power bike, a heart rate acquisition module, a data processing module, a motion control and voice guidance module, a load regulation module, a result output and data management module, a safety monitoring and suspension module, and a user interaction module; The power car includes a positioning base 1, a support base 2, a frame 3, a counting and power utilization mechanism 4, and a measurement and power recovery mechanism 5, providing a stable and controllable physical motion platform and an adjustable load system; The heart rate acquisition module collects the subject's heart rate data in real time during rest and exercise, which serves as the core basis for VO2max estimation; The data processing module calculates the maximum oxygen uptake (VO2max) and cardiopulmonary endurance level based on the collected heart rate data, subject information and load intensity; The motor control and voice guidance module guides the subjects to complete a standard-paced cycling task through voice; The load control module automatically sets and switches the load level of the power car according to preset rules and user input information to ensure the test intensity is moderate; After the test is completed, the result output and data management module will provide visual display of the subject results, report generation and data storage management; The safety monitoring and termination module uses real-time heart rate monitoring and user operation permissions to perform abnormal warnings and test termination control; The user interaction module serves as the information interaction interface between people and devices, and is responsible for the graphical display of all test operations and feedback.

[0023] According to the above technical solution, the power bike is adjusted to suit different test subjects' heights, provides two power load levels, level one and level two, and supports a fixed cadence of 60 rpm. The heart rate acquisition module uses an LED photoelectric sensor heart rate belt, which is worn on the inner side of the midpoint of the right upper arm. It supports both static and dynamic acquisition modes. After startup, the LED sensor lights up to confirm that it fits the skin, and the belt is wirelessly synchronized to the host system in real time. The data processing module collects the subject's age, gender, weight, resting heart rate, and exercise heart rate, and models the heart rate response based on the primary and secondary load stages, and also adds a local sample adjustment coefficient; The motion control and voice guidance module provides voice prompts for riding rhythm: maintain 60 rpm, and guides the test process: start, load switching, remaining time prompt, and end; The load control module matches the submaximal load plan according to age and gender, and automatically calls the power level that matches the subject; The result output and data management module outputs VO2max value, heart rate response curve, exercise level recommendation, generates electronic or paper reports, and archives historical records; The safety monitoring and termination module and the user interaction module set the heart rate safety threshold, and automatically alarm if it exceeds the limit. If extreme data or connection failure occurs, the test will be automatically paused, and the user can click the "Cancel Test" button to exit at any time. If the test is abnormal, you can choose whether to retain some data; The user interaction module displays the real-time test status, including heart rate curve, time, rhythm, and presents the test result interface.

[0024] According to the above technical solution, in terms of exercise time, the exercise load of the subject in the motion control and voice guidance module is to stimulate the frequency rhythm of the voice prompts first. The subject completes continuous exercise with 2 levels of load at a constant speed of 60 seconds / revolution, 3 minutes per level, and a total of 6 minutes. This allows the subject's cardiopulmonary related systems to tolerate the load for a longer time, inducing a true reflection of their cardiopulmonary endurance level.

[0025] According to the above technical solution, in the result output and data management module test, the subject performs a loaded cycling exercise at a speed of 60 revolutions per minute for 7 minutes at the same beat frequency. After the 7-minute exercise, the heart rate sensor automatically transmits the test data to the host, and the host calculates and displays the results according to the formula and saves them. The smart detection bracelet 518 is equipped with a heart rate acquisition module; The receiving display terminal 513 has a data processing module installed therein. Example

[0026] like Figure 2-9 As shown, The present invention provides a technical solution, a device for measuring the cardiopulmonary endurance of adults, comprising a positioning base 1, a support base 2 is mounted on the top of the positioning base 1, a frame 3 is connected to the top of the support base 2, a counting and power utilization mechanism 4 is provided inside the support base 2, and the counting and power utilization mechanism 4 includes a power chamber 401; A power chamber 401 is provided inside the support base 2, and a sealed splicing cover 402 is connected to the inside of the power chamber 401. A power-assisting rotating rod 403 rotates inside the sealed splicing cover 402. Riding pedals 404 are installed at both ends of the power-assisting rotating rod 403. A counting rotating disk 405 is sleeved on the outside of the power-assisting rotating rod 403, and an extrusion block 406 is clamped on the outside of the counting rotating disk 405. The bottom end of the power chamber 401 is clamped with a mounting groove 407, and a turn counter 408 is installed inside the mounting groove 407; A riding bracket 409 is clamped to the bottom end of the frame 3. A driven rod 410 rotates inside the riding bracket 409. A sprocket 411 is sleeved on the outside of the driven rod 410 and the outside of the power-assisting rotating rod 403. A chain 412 is sleeved on the outside of the sprocket 411. In order to facilitate the recording of the number of laps, a sealed splicing cover 402 is connected to the inner wall of the power chamber 401 through a thread. There are two sealed splicing covers 402 and two counting rotating disks 405. The extrusion block 406 is arc-shaped. The lap counter 408 is powered by an internal power supply. The inner wall of the mounting groove 407 is connected to an arc-shaped pad 413 via a thread. The inner side of the arc-shaped pad 413 is symmetrically and movably connected to a reciprocating slide 414. The bottom ends of the two reciprocating slides 414 are clamped with a touch pressure plate 415. A return spring 416 is clamped between the touch pressure plate 415 and the arc-shaped pad 413 at a position corresponding to the outer side of the reciprocating slide 414. The top of the reciprocating slide 414 is clamped with an arc-shaped pad 417. Both ends of the driven rod 410 are clamped with a driving turntable 418, and the opposite ends of the two driving turntables 418 are rotatably connected to the traction pull plates 419, and the other ends of the two traction pull plates 419 are rotatably connected to the translation slide 420, and the other side of the top of the translation slide 420 is symmetrically rotatably connected to the adjustment vertical cylinder 421, and the top of the adjustment vertical cylinder 421 is connected to the lifting sleeve rod 422 through a thread, and the outer sides of the two lifting sleeve rods 422 are fixedly sleeved with a pushing rack 423, and one end of the pushing rack 423 is symmetrically rotatably connected to the rotating rack 424, and the inside of the two rotating racks 424 are rotatably connected to the roller 425, and the outer sides of the lifting sleeve rods 422 are movable at the top and bottom positions corresponding to the pushing rack 423 The limit anti-deflection plate 426 is sleeved, and the limit anti-deflection plate 426 is symmetrically and movably connected with a telescopic slide rod 427 inside. The other end of the telescopic slide rod 427 is clamped with a splicing horizontal plate 428. Support springs 429 are clamped at the outer positions of the telescopic slide rod 427 corresponding to the splicing horizontal plate 428 and the limit anti-deflection plate 426. In order to facilitate the relaxation of the user's back muscles, the bottom end of the translation slide 420 is slidably connected to the top of the positioning base 1, and a knob is fixedly sleeved at the outer bottom position of the adjustment vertical cylinder 421. The outer bottom position of the lifting sleeve 422 is threaded. Both ends of the splicing horizontal plate 428 are rotatably connected to the inner wall of the rotating frame 424, and a rubber sleeve is sleeved on the outer side of the roller 425. A measurement and power recovery mechanism 5 is provided at one end of the positioning base 1, and the measurement and power recovery mechanism 5 includes a power transmission gear 501; The outer side of the driven rod 410 is symmetrically sleeved with a power transmission gear 501, and the two ends of the riding bracket 409 are connected to the outer side of the power transmission gear 501 by bolts with a safety shield 502; A positioning block 503 is symmetrically connected to the top of the positioning base 1. A rotating shaft 504 is rotatably connected to the inside of the positioning block 503. A driven gear 505 is fixedly sleeved on the outside of the rotating shaft 504. Small generators 506 are installed on both sides of the top of the positioning base 1 corresponding to the rotating shaft 504. A storage slot 507 is opened on one side of the top of the positioning base 1. A battery 508 is embedded in the storage slot 507, and a rectifier 509 is bolted to the storage slot 507 on the side corresponding to the battery 508. A support inclined plate 510 is movably connected to one side of the top of the frame 3, and splicing protrusions 511 are clamped at both ends of the support inclined plate 510 and the two ends of the frame 3, and the inner wall of the splicing protrusion 511 on the frame 3 is connected to the adjustment support rod 512 through a thread, and a receiving display terminal 513 is connected to the top of the support inclined plate 510 through a bolt, and an L-shaped frame 514 is clamped at one end of the support inclined plate 510, and a winding drum 515 is rotatably connected at the top position of both ends of the L-shaped frame 514, and a traction rope 516 is wound around the outside of the two winding drums 515, and a wearable breathing detection sensor 517 is installed at the other end of one traction rope 516, and a wearable breathing detection sensor 517 is installed at the other end of the other traction rope 51 A smart detection bracelet 518 is installed at the other end. To facilitate power recovery, dust covers are bolted to the outside of the small generator 506 and the battery 508 at the top of the positioning base 1. The small generator 506 and the battery 508 are electrically connected, and the battery 508 and the rectifier 509 are electrically connected. The receiving and display terminal 513, the wearable breathing detection sensor 517, and the smart detection bracelet 518 are all powered by an internal power supply. The signal output ends of the lap counter 408, the wearable breathing detection sensor 517, and the smart detection bracelet 518 are all connected to the input end of the receiving and display terminal 513.

[0027] The working principle and usage process of the present invention are as follows: first, the sealing splicing cover 402 is used to conveniently seal and protect the inside of the power chamber 401, and at the same time, the power-assisting rotating rod 403 is limited inside the power chamber 401, so that people can use the riding pedal 404 to rotate the power-assisting rotating rod 403, and through the cooperation of the sprocket 411 and the chain 412, the power is transmitted, driving the driven rod 410 to rotate, forcing the driven rod 410 to drive the driving turntable 418 to rotate, and then further transmitting the power through the cooperation of the traction pull plate 419. When performing cardiopulmonary endurance measurement, the rotational power generated by riding is converted to push the translation slide 420 to slide back and forth on the positioning base 1; Then, when the translation slide 420 slides back and forth on the positioning base 1, it moves with the adjustment vertical cylinder 421, the lifting sleeve rod 422 and the pushing frame 423, forcing the rotating frame 424 and the roller 425 to fit the back of the rider, and when fitting, the rotating frame 424 is pushed to rotate, thereby causing the roller 425 to squeeze and roll up and down on the back. At the same time, the rotating frame 424 is limited by the cooperation of the limiting anti-deflection plate 426, the telescopic slide rod 427 and the splicing cross plate 428 to prevent the rotating frame 424 from deflecting, thereby ensuring stability. When the pushing frame 423 moves away, the supporting spring 429 is used to push the rotating frame 424 to return to its original position. This cycle continuously relaxes the rider's muscles, has the effect of relaxing muscles and activating blood circulation, relieves muscle soreness, and improves the function of the device. In addition, the vertical cylinder 421 is rotated to push the lifting sleeve rod 422, the limit anti-deflection plate 426 and the pushing frame 423 up and down, and the position of the rotating frame 424 and the roller 425 is adjusted according to the height of the rider to ensure the squeezing and rolling effect on the back, thereby improving the applicability; Then, during riding, the power-assisted rotating rod 403 drives the counting rotating disk 405 to rotate, and through the cooperation of the squeezing block 406, pushes the arc-shaped pad 417, the reciprocating slide 414 and the touch pressure plate 415 down, contacts the lap counter 408, and counts. Then the counting rotating disk 405 continues to rotate, driving the squeezing block 406 to separate from the arc-shaped pad 417, and then resets the arc-shaped pad 417, the reciprocating slide 414 and the touch pressure plate 415 through the reset spring 416, so that the squeezing block 406 can continue to push the arc-shaped pad 417 next time. The cycle continues like this. After the riding pedal 404 rotates one circle, the number of laps is recorded, which improves convenience and makes it easy to check the amount of exercise. Next, when the driven rod 410 rotates, it drives the power transmission gear 501 to rotate, and through the cooperation of the driven gear 505, it drives the rotating shaft 504 to rotate together, and then drives the small generator 506 to rotate, converting the power generated by riding into electricity, which is then stored in the battery 508. Then, through the cooperation of the rectifier 509, the stored electricity is conveniently provided to the measuring device, achieving self-sufficiency, improving resource utilization, and reducing resource waste; Next, the wearable respiratory detection sensor 517 and the smart detection bracelet 518 are put on the body, and the cyclist's breathing and pulse are measured while riding, which facilitates the subsequent measurement of cardiopulmonary endurance. The measured data is remotely transmitted to the receiving display terminal 513 for easy observation, which improves convenience. When not in use, the winding drum 515 is rotated to reel the traction rope 516, and then the wearable respiratory detection sensor 517 and the smart detection bracelet 518 are raised, making it easier to place the wearable respiratory detection sensor 517 and the smart detection bracelet 518. Finally, by adjusting the coordination between the support rod 512 and the splicing protrusion 511, the support inclined plate 510 is pushed up and down as needed, and the height of the support inclined plate 510 is adjusted to facilitate gripping by riders of different heights, make observation more convenient, and improve adaptability.

[0028] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A system for measuring cardiopulmonary endurance of adults, characterized by: It includes power car, heart rate acquisition module, data processing module, motion control and voice guidance module, load control module, result output and data management module, safety monitoring and termination module and user interaction module; The power vehicle comprises a positioning base (1), a support base (2), a vehicle frame (3), a counting and power utilization mechanism (4), and a measurement and power recovery mechanism (5), providing a stable and controllable physical motion platform and an adjustable load system; The heart rate acquisition module collects the subject's heart rate data at rest and during exercise in real time as the core basis for VO2max estimation; The data processing module calculates the maximum oxygen uptake (VO2max) and cardiopulmonary endurance level based on the collected heart rate data, subject information and load intensity; The motion control and voice guidance module guides the subject to complete a standard rhythm cycling task through voice; The load control module automatically sets and switches the load level of the power vehicle according to preset rules and user input information to ensure that the test intensity is moderate; After the test is completed, the result output and data management module will perform visual display of the subject results, report generation and data storage management; The safety monitoring and suspension module performs abnormal warning and test suspension control through real-time heart rate monitoring and user operation authority; The user interaction module serves as the information interaction interface between people and equipment and is responsible for the graphical presentation of all test operations and feedback.

2. A system for measuring cardiopulmonary endurance of adults according to claim 1, characterized in that: The power bike is adjustable to suit different test subjects' heights, provides two power load levels, level one and level two, and supports a fixed cadence of 60 rpm. The heart rate acquisition module uses an LED photoelectric sensor heart rate belt, which is worn on the inner side of the midpoint of the right upper arm. It supports both static and dynamic acquisition modes. After startup, the LED sensor lights up to confirm that it fits the skin, and it is wirelessly synchronized to the host system in real time. The data processing module collects the subject's age, gender, weight, resting heart rate, and exercise heart rate, and models the heart rate response according to the first and second load stages, and also adds a local sample adjustment coefficient; The motion control and voice guidance module voice prompts the riding rhythm: maintain 60 rpm, guides the test process: start, load switching, remaining time prompt, end; The load control module automatically calls the power level that matches the subject according to the submaximal load scheme matched with the age and gender; The result output and data management module outputs VO2max value, heart rate response curve, exercise level recommendation, generates electronic or paper reports, and records and archives historical records; The safety monitoring and termination module and the user interaction module set the heart rate safety threshold, and automatically alarm if it exceeds the limit. If extreme data or connection failure occurs, the test will be automatically paused, and the user can click the "Cancel Test" button to exit at any time. If the test is abnormal, the user can choose whether to retain some data; The user interaction module displays the real-time test status, including heart rate curve, time, rhythm, and presents a test result interface.

3. The system for measuring cardiopulmonary endurance of adults according to claim 1, characterized in that: In terms of exercise time, the exercise load of the subject in the motion control and voice guidance module is to stimulate the subject to follow the frequency rhythm of the voice prompt. The subject completes continuous exercise with two levels of load at a constant speed of 60 seconds / revolution, each level for 3 minutes, for a total of 6 minutes, so that the subject's cardiopulmonary related systems can tolerate the load for a longer time, inducing a true reflection of their cardiopulmonary endurance level.

4. The system for measuring cardiopulmonary endurance of adults according to claim 1, characterized in that: In the test of the result output and data management module, the subject performs a loaded cycling exercise at a speed of 60 revolutions per minute for 7 minutes at the beat frequency. After the 7-minute exercise, the heart rate sensor automatically transmits the test data to the host, and the host calculates and displays the results according to the formula and saves them; The smart detection bracelet (518) is internally installed with a heart rate acquisition module; A data processing module is installed inside the receiving display terminal (513).

5. A device for measuring cardiopulmonary endurance of adults, according to any one of claims 1 to 4, characterized in that: A support seat (2) is installed at the top of the positioning base (1), and a vehicle frame (3) is connected to the top of the support seat (2). A counting and power utilization mechanism (4) is provided inside the support seat (2), and the counting and power utilization mechanism (4) includes a power chamber (401); A power cavity (401) is provided inside the support seat (2), a sealed splicing cover (402) is connected to the inside of the power cavity (401), and a power-assisting rotating rod (403) is rotated inside the sealed splicing cover (402), riding pedals (404) are installed at both ends of the power-assisting rotating rod (403), a counting rotating disk (405) is sleeved on the outside of the power-assisting rotating rod (403), and an extrusion block (406) is clamped on the outside of the counting rotating disk (405); The bottom end of the power chamber (401) is clamped with a mounting groove (407), and a revolution counter (408) is installed inside the mounting groove (407); A riding bracket (409) is clamped at the bottom end of the bicycle frame (3), a driven rod (410) is rotated inside the riding bracket (409), and a sprocket (411) is sleeved on the outside of the driven rod (410) and the outside of the power-assisting rotating rod (403), and a chain (412) is sleeved on the outside of the sprocket (411).

6. The device for measuring cardiopulmonary endurance of adults according to claim 1, characterized in that: The sealing splicing cover (402) is connected to the inner wall of the power chamber (401) via threads. There are two sealing splicing covers (402) and two counting rotary disks (405). The extrusion block (406) is arc-shaped. The lap counter (408) is powered by an internal power supply.

7. The device for measuring cardiopulmonary endurance of adults according to claim 5, characterized in that: The inner wall of the mounting groove (407) is connected to an arc-shaped pad (413) through a thread, and the inner part of the arc-shaped pad (413) is symmetrically and movably connected to a reciprocating slide (414), and the bottom ends of the two reciprocating slides (414) are clamped with a touch pressure plate (415), and the outer positions of the reciprocating slides (414) corresponding to the touch pressure plate (415) and the arc-shaped pad (413) are clamped with a return spring (416), and the top of the reciprocating slide (414) is clamped with an arc-shaped pad (417); Both ends of the driven rod (410) are clamped with a driving turntable (418), and the opposite ends of the two driving turntables (418) are rotatably connected to a traction plate (419), and the other ends of the two traction plates (419) are rotatably connected to a translation slide (420), and the other side of the top of the translation slide (420) is symmetrically rotatably connected to an adjustment vertical cylinder (421), and the top of the adjustment vertical cylinder (421) is connected to a lifting sleeve rod (422) through a thread, and the outer sides of the two lifting sleeve rods (422) are fixedly sleeved with a pushing frame (423), and one end of the pushing frame (423) is symmetrically connected to the other side of the top. A rotating frame (424) is rotatably connected, and rollers (425) are rotatably connected inside the two rotating frames (424). The outer sides of the lifting sleeve rod (422) are movably connected to the top and bottom positions of the push frame (423), and the limiting anti-deflection plates (426) are symmetrically movably connected to the telescopic slide rod (427). The other end of the telescopic slide rod (427) is clamped with a splicing horizontal plate (428), and the outer sides of the telescopic slide rod (427) corresponding to the splicing horizontal plate (428) and the limiting anti-deflection plates (426) are clamped with support springs (429).

8. The device for measuring cardiopulmonary endurance of adults according to claim 7, characterized in that: The bottom end of the translation slide (420) is slidably connected to the top end of the positioning base (1); a knob is fixedly sleeved at the bottom position of the outer side of the adjustment vertical cylinder (421); a thread is provided at the bottom position of the outer side of the lifting sleeve (422); both ends of the splicing horizontal plate (428) are rotatably connected to the inner wall of the rotating frame (424); and a rubber sleeve is sleeved on the outer side of the roller (425).

9. The device for measuring cardiopulmonary endurance of adults according to claim 1, characterized in that: A measurement and power recovery mechanism (5) is provided at one end of the positioning base (1), and the measurement and power recovery mechanism (5) comprises a power transmission gear (501); A power transmission gear (501) is symmetrically sleeved on the outside of the driven rod (410), and safety shields (502) are connected to the riding bracket (409) at positions corresponding to the outside of the power transmission gear (501) via bolts. The top of the positioning base (1) is symmetrically connected with a positioning block (503), the interior of the positioning block (503) is rotatably connected with a rotating shaft (504), the outside of the rotating shaft (504) is fixedly sleeved with a driven gear (505), the top of the positioning base (1) is provided with small generators (506) at positions on both sides of the rotating shaft (504), the top of the positioning base (1) is provided with a storage slot (507) at a position on one side of the top, a battery (508) is embedded in the storage slot (507), and a rectifier (509) is connected to the storage slot (507) at a position on one side of the battery (508) via bolts; A support inclined plate (510) is movably connected to one side of the top of the frame (3), and both ends of the support inclined plate (510) and the frame (3) are clamped with splicing protrusions (511), and the inner wall of the splicing protrusion (511) on the frame (3) is screwed with an adjusting strut (512), and the top of the support inclined plate (510) is bolted to a receiving display terminal (513), and one end of the support inclined plate (510) is clamped with an L-shaped frame (514), and the top positions of both ends of the L-shaped frame (514) are rotatably connected to a winding drum (515), and the outer sides of the two winding drums (515) are both wound with traction ropes (516), and the other end of one of the traction ropes (516) is installed with a wearable breathing detection sensor (517), and the other end of the other traction rope (516) is installed with an intelligent detection bracelet (518).

10. The device for measuring cardiopulmonary endurance of adults according to claim 9, characterized in that: Dust covers are connected to the outer sides of the small generator (506) and the battery (508) corresponding to the top of the positioning base (1) by bolts. The small generator (506) and the battery (508) are electrically connected. The battery (508) and the rectifier (509) are electrically connected. The receiving and display terminal (513), the wearable breathing detection sensor (517) and the smart detection bracelet (518) are all powered by an internal power supply. The signal output ends of the lap counter (408), the wearable breathing detection sensor (517) and the smart detection bracelet (518) are all connected to the input end of the receiving and display terminal (513).

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