A multifunctional wristband for real-time monitoring of exercise fatigue

Abstract

This utility model provides a multifunctional sports fatigue real-time monitoring wristband, relating to the field of wristband technology. It includes a main monitoring wristband and a positioning module. The positioning module is located at the tail of the main monitoring wristband. A contact groove is formed on the side of the positioning module. A central magnet, made of neodymium iron boron with a magnetic force ≥5N, is fixedly connected to the bottom of the positioning module. Lower fixing pins are fixedly connected to the bottom of the positioning module in a circular array. A lower fixing plate is attached to the bottom of the positioning module, and a positioning groove is formed in a circular array on the top of the lower fixing plate. The positioning module is fixed to the chest or shoulder of the wearer's clothing, avoiding signal obstruction caused by vigorous arm swings and the arm / torso. This solves the problem of frequent GNSS antenna obstruction by the torso, arm, and clothing due to high-frequency arm swings, resulting in large fluctuations in satellite signal reception strength.

Description

Technical Field

[0001] This utility model relates to the field of sports bracelet technology, and in particular to a multifunctional sports fatigue real-time monitoring bracelet. Background Technology

[0002] During activities such as running, people often wear wristbands to monitor their physical condition and exercise path. By integrating multiple types of sensors and intelligent algorithms, wristbands can record exercise data, monitor physiological parameters, and identify exercise status during the user's exercise process. They also provide data feedback and health suggestions to help users scientifically plan their exercise, evaluate exercise effects, and avoid exercise risks.

[0003] When a wristband is worn on the wrist, the arm swings frequently during exercise (such as running or cycling) (the swing amplitude can reach 30°-60°), causing the GNSS antenna to be frequently blocked by the torso, arm, and clothing (such as long sleeves and jackets). This results in large fluctuations in the satellite signal reception strength (CN0 value) and even short-term signal loss, making the wristband's positioning prone to drift. For example, when running in a straight line, the trajectory will be S-shaped, and there will be errors in mileage calculation. Utility Model Content

[0004] This utility model provides a multifunctional sports fatigue real-time monitoring wristband. The positioning module and the lower fixing plate clamp the clothing with a central magnet, and the lower fixing pin penetrates the clothing to prevent rotation. This fixes the positioning module to the chest or shoulder of the person's clothing, avoiding signal blockage caused by violent arm swings and the arm and torso, thus enhancing the stability of the positioning signal and improving the accuracy of the running trajectory.

[0005] This utility model provides a multifunctional sports fatigue real-time monitoring wristband, specifically including a main monitoring wristband and a positioning module. The positioning module is set at the tail of the main monitoring wristband, and a positioning connection groove is opened at the tail of the main monitoring wristband. An elastic contact point is set on the inner side of the positioning connection groove. A display screen is set at the top of the main monitoring wristband. The strap is made of skin-friendly silicone material. The straps at both ends of the main monitoring wristband are respectively provided with through holes and buckles. The display screen is an OLED touch screen, which can display information such as time, real-time heart rate, fatigue index, and positioning trajectory thumbnail, and supports touch operation. The straps are slidably fixed to both ends of the main monitoring wristband. A photoelectric heart rate sensor for monitoring real-time heart rate and a skin conductance sensor for monitoring skin conductance activity during exercise are set on the side of the main monitoring wristband close to the skin. A three-axis accelerometer for capturing exercise intensity and movement amplitude is also set inside the main monitoring wristband.

[0006] Furthermore, the positioning module has a contact slot on its side, and a central magnet is fixedly connected to the bottom of the positioning module. The central magnet is made of neodymium iron boron and has a magnetic force ≥5N. A lower fixing pin is fixedly connected to the bottom ring array of the positioning module. The positioning module is equipped with a multi-mode GNSS chip, a six-axis IMU, and a ceramic antenna. The multi-mode GNSS chip supports GPS / BeiDou / GLONASS, with a positioning accuracy of 1-3 meters and a sampling rate of 1Hz. The six-axis IMU is a three-axis accelerometer + a three-axis gyroscope with a sampling rate of 100Hz, used for dead reckoning when the signal is weak.

[0007] Furthermore, a positioning module is slidably connected to the inner side of the positioning connection slot, and the contact slot and the elastic connection contact are aligned and slidably connected to achieve data and power transmission.

[0008] Furthermore, the bottom of the positioning module is fitted with a lower fixing plate, and the top of the lower fixing plate is provided with positioning grooves in a circular array.

[0009] Furthermore, a central magnet is fixedly connected to the top and bottom of the lower fixing plate. The central magnet at the top of the lower fixing plate and the central magnet at the bottom of the positioning module are magnetically connected and attached to each other, thereby clamping the middle of the clothing.

[0010] Furthermore, the bottom of the lower fixed plate is magnetically connected to the bottom iron plate inside the positioning connection groove via a central magnet, and the positioning module is integrated with the positioning connection groove of the main monitoring wristband as a whole through a sliding insertion structure.

[0011] Furthermore, the lower fixing pin slides through the clothing and into the positioning groove on the top of the lower fixing plate. The lower fixing pin is made of medical-grade stainless steel, with a diameter of 1mm and a length of 5mm, and the tip is rounded. After passing through the clothing, the lower fixing pin slides into the positioning groove of the lower fixing plate. At the same time, the central magnet at the bottom of the positioning module magnetically attaches to the central magnet at the top of the lower fixing plate, thereby clamping and fixing the clothing firmly to the chest or shoulder of the human body. This position is close to the central axis of the human body, and the horizontal swing amplitude during movement is only 1 / 3 to 1 / 5 of that of the wrist, laying a hardware foundation for high-precision trajectory recording.

[0012] This utility model provides a multifunctional wristband for real-time monitoring of exercise fatigue, which has the following beneficial effects: The positioning module and the lower fixing plate clamp the clothing with a central magnet, and the lower fixing pin penetrates the clothing for positioning to prevent rotation. This fixes the positioning module to the chest or shoulder of the person's clothing, avoiding signal blockage caused by violent arm swings and the arm and torso. The chest position is closer to the human body's central axis, and the swing amplitude during movement is only 1 / 3 to 1 / 5 of that of the wrist. The probability of torso blockage is low, which enhances the stability of the positioning signal and improves the accuracy of the running trajectory.

[0013] When not in use, the positioning connection slot and positioning module slide in for storage. The positioning module and the main monitoring wristband form a whole and are charged and exchange data. The integrated storage greatly reduces the loss rate of the positioning module, avoiding the problem of the small positioning module being easily lost when carried alone, and avoiding the problem of the positioning module being easily left in a pocket or sports bag when stored separately. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.

[0015] The accompanying drawings described below are only related to some embodiments of the present invention and are not intended to limit the scope of the present invention.

[0016] In the attached diagram: Figure 1 A schematic diagram of the overall structure of this application is shown; Figure 2 A schematic diagram of the main monitoring wristband structure of this application is shown; Figure 3 A schematic diagram of the lower fixed disk structure of this application is shown; Figure 4 A schematic diagram of the positioning module structure of this application is shown; Figure 5 A schematic diagram of the positioning connection groove structure of this application is shown; Figure 6 This invention illustrates a structural diagram of the main monitoring wristband and positioning module in their separated states. Figure label: 1. Main monitoring wristband; 101. Positioning connection slot; 102. Flexible connecting contact point; 103. Display screen; 104. Watch strap; 2. Positioning module; 201. Contact groove; 202. Middle magnet; 203. Lower fixing pin; 204. Lower fixing plate; 205. Positioning groove. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0018] Example 1: Please refer to Figures 1 to 6 : This utility model proposes a multifunctional sports fatigue real-time monitoring wristband, including a main monitoring wristband 1 and a positioning module 2. The main monitoring wristband 1 has a positioning connection groove 101 at its tail end, and an elastic contact point 102 is provided on the inner side of the positioning connection groove 101. A display screen 103 is provided on the top of the main monitoring wristband 1. The strap 104 is made of skin-friendly silicone material, and the strap 104 at both ends of the main monitoring wristband 1 has a through hole and a buckle. The display screen 103 is an OLED touch screen that can display time, real-time heart rate, and fatigue level. The main monitoring bracelet 1 displays information such as labor index and a thumbnail of the positioning trajectory, and supports touch operation. The main monitoring bracelet 1 is fixedly connected to a watch strap 104 at both ends via a sliding connection. On the side of the main monitoring bracelet 1 closest to the wrist skin, there is a photoelectric heart rate sensor for monitoring real-time heart rate and a skin conductance sensor for monitoring skin conductance activity during exercise. The main monitoring bracelet 1 also contains a three-axis accelerometer for capturing exercise intensity and amplitude. A positioning module 2 is located at the tail of the main monitoring bracelet 1, and a contact groove 201 is formed on the side of the positioning module 2. The positioning module 2 is slidably connected to the inner side of the slot 101. The contact slot 201 and the elastic contact point 102 are aligned and slidably connected to achieve data and power transmission. A central magnet 202 is fixedly connected to the bottom of the positioning module 2. The central magnet 202 is made of neodymium iron boron and has a magnetic force ≥5N. A lower fixing pin 203 is fixedly connected to the bottom ring array of the positioning module 2. The positioning module 2 is equipped with a multi-mode GNSS chip, a six-axis IMU, and a ceramic antenna. The multi-mode GNSS chip supports GPS / BeiDou / GLONASS. Position accuracy is 1-3 meters, sampling rate is 1Hz; the six-axis IMU is a three-axis accelerometer + three-axis gyroscope with a sampling rate of 100Hz, used for dead reckoning when the signal is weak. The bottom of the positioning module 2 is attached to the lower fixing plate 204, and the top of the lower fixing plate 204 is provided with a ring array of positioning grooves 205. The top and bottom of the lower fixing plate 204 are both fixedly connected to the center of the middle magnet 202. The middle magnet 202 on the top of the lower fixing plate 204 and the middle magnet 202 on the bottom of the positioning module 2 are magnetically connected and attached to achieve clamping of the middle of the clothes.

[0019] In this embodiment, the bottom of the lower fixed plate 204 is magnetically connected to the bottom iron sheet inside the positioning connection groove 101 via the middle magnet 202. The positioning module 2 is integrated with the positioning connection groove 101 of the main monitoring wristband 1 through a sliding insertion structure, thus avoiding the problem that the positioning module 2 is easily left in a pocket or sports bag when stored separately.

[0020] In this embodiment, the lower fixing pin 203 slides through the clothing and into the positioning groove 205 at the top of the lower fixing plate 204. The lower fixing pin 203 is made of medical-grade stainless steel, with a diameter of 1mm and a length of 5mm, and the tip is rounded. After the lower fixing pin 203 passes through the clothing, it slides into the positioning groove 205 of the lower fixing plate 204. At the same time, the central magnet 202 at the bottom of the positioning module 2 magnetically attaches to the central magnet 202 at the top of the lower fixing plate 204, thereby clamping and fixing the clothing. It is firmly fixed to the chest or shoulder of the human body. This position is close to the central axis of the human body, and the horizontal swing amplitude during movement is only 1 / 3 to 1 / 5 of that of the wrist. This lays the hardware foundation for high-precision trajectory recording and solves the problem of large fluctuations in positioning signals and significant trajectory drift caused by violent arm swings and torso obstruction when wearing the wrist.

[0021] In this second embodiment, based on the first embodiment, the positioning module 2 is equipped with a wireless transmission module. The wireless transmission module adopts Bluetooth 5.0. Through the contact of the elastic contact point 102 and the contact slot 201, the real-time transmission delay of the positioning data latitude, longitude, speed and trajectory to the main monitoring wristband 1 is ≤10ms. The main monitoring wristband 1 then fuses and records the positioning trajectory with fatigue data.

[0022] The working principle of this embodiment: The positioning module 2 clamps the clothing through the magnetic attraction between the middle magnet 202 and the lower fixing plate 204. After the lower fixing pin 203 penetrates the clothing, it rigidly engages with the positioning groove 205 to prevent rotation and securely fix it to the chest or shoulder of the human body. It is compatible with various clothing such as T-shirts, sports vests, and windbreakers, and supports fixation at multiple positions such as the chest and shoulder. This position is close to the central axis of the human body. During movement, the horizontal swing amplitude is only 1 / 3 to 1 / 5 of that of the wrist. The probability of torso obstruction decreases from 40% at the wrist to ≤15%. The average GNSS signal strength increases from 35dB·Hz at the wrist to 45dB·Hz. The number of visible satellites increases by 2 to 3, and stabilizes at 10 to 13 in open areas, laying the hardware foundation for high-precision trajectory recording. The low sway characteristics of the wrist significantly reduce invalid interference from the IMU (Inertial Measurement Unit). The azimuth drift is reduced from 5°-10° / 100m when worn on the wrist to 1°-3° / 100m, and the step length calculation error is reduced from 10%-15% to 3%-5%. At the same time, the position is far from the ground reflection source, and the multipath error is reduced by 70%, from 5-8 meters to 1-2 meters. In scenarios such as marathons and trail running, the total error of the 10km trajectory is reduced from the traditional 80-100 meters to 20-30 meters, and the trajectory-to-actual path fit is improved from 60% to over 90%. This meets the accuracy requirements of professional sports for trajectory data, such as pace analysis and slope correlation, and solves the problem of large fluctuations in positioning signals and significant trajectory drift caused by violent arm swings and torso obstruction when worn on the wrist. The positioning module 2 is tightly integrated with the positioning connection slot 101 of the main monitoring bracelet 1 via a sliding insertion structure, forming a whole. This avoids the problem of the positioning module 2 being easily lost in a pocket or sports bag when stored separately. The integrated storage reduces the monthly loss rate of the positioning module 2 from 8% to ≤0.5%, significantly reducing the cost of accessory replacement. The flexible connecting contact point 102 precisely aligns with the contact slot 201, achieving seamless charging and discharging as well as data synchronization. The battery of the main monitoring bracelet 1 can reverse charge the positioning module 2, avoiding the inconvenience of charging it separately. The positioning module 2 stores the trajectory... Data is transmitted to the main band at high speed via contact points, reducing synchronization time from 10-15 seconds for traditional Bluetooth transmission to 2-3 seconds, and avoiding packet loss issues associated with wireless transmission. During exercise, the low-interference characteristics of the chest / shoulder mounting enhance positioning accuracy to a professional level. When not exercising, the integrated storage solves the management problem of small accessories, meeting the stringent requirements of professional sports such as marathons and trail running for trajectory accuracy (error ≤3%), while also catering to the ease of use needs of general users (loss rate ≤0.5%), significantly improving the product's overall competitiveness.

[0023] The following points should be noted in this article: 1. The accompanying drawings of the embodiments disclosed herein only involve structures relevant to the embodiments disclosed herein; other structures may refer to general designs.

[0024] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0025] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A multifunctional wristband for real-time monitoring of exercise fatigue, comprising: The main monitoring wristband (1) and the positioning module (2) are characterized in that the main monitoring wristband (1) is provided with a positioning module (2) at the tail, the side of the positioning module (2) is provided with a contact groove (201), the bottom of the positioning module (2) is fixedly connected with a middle magnet (202), and the bottom of the positioning module (2) is fixedly connected with a lower fixing pin (203) in a ring array.

2. The multifunctional sports fatigue real-time monitoring wristband according to claim 1, characterized in that, The main monitoring wristband (1) has a positioning connection groove (101) at its tail end, and an elastic connection contact point (102) is provided on the inner side of the positioning connection groove (101). A display screen (103) is provided on the top of the main monitoring wristband (1), and watch straps (104) are fixedly connected to both ends of the main monitoring wristband (1).

3. A multifunctional sports fatigue real-time monitoring wristband according to claim 2, characterized in that, The positioning module (2) is slidably connected to the inner side of the positioning connection groove (101), and the contact groove (201) and the elastic connection contact point (102) are aligned and slidably connected.

4. A multifunctional sports fatigue real-time monitoring wristband according to claim 3, characterized in that, The bottom of the positioning module (2) is attached to a lower fixing plate (204), and the top of the lower fixing plate (204) is provided with a positioning groove (205) in a ring array.

5. A multifunctional sports fatigue real-time monitoring wristband according to claim 4, characterized in that, The lower fixing plate (204) has a central magnet (202) fixedly connected to the top and bottom of the plate. The central magnet (202) at the top of the lower fixing plate (204) and the central magnet (202) at the bottom of the positioning module (2) are magnetically connected and attached.

6. A multifunctional sports fatigue real-time monitoring wristband according to claim 5, characterized in that, The bottom of the lower fixed plate (204) is magnetically connected to the bottom of the inner side of the positioning connection groove (101) by the middle magnet (202).

7. A multifunctional sports fatigue real-time monitoring wristband according to claim 6, characterized in that, The lower fixing pin (203) and the positioning groove (205) on the top of the lower fixing plate (204) are slidably connected.

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