Backstroke head rotation angle detection equipment based on gyroscope sensor

Abstract

The utility model belongs to swimming auxiliary equipment, and discloses backstroke head rotation angle detection equipment based on a gyroscope sensor, which comprises a fixing device, a gyroscope sensor and a detection device, the detection control device is integrally connected with the fixing device; the fixing device is used for fixing the detection control device on the head of a backstroke person; the control device comprises a gyroscope sensor, a Bluetooth module, a vibration module, a power module and an upper computer. The high-precision gyroscope sensor is adopted, accurate monitoring of the rotating angle of the head is achieved, and the device has the advantages of being simple in structure and low in cost, is small, light, waterproof and vibration-proof, ensures that the device is comfortable to wear and adapts to the backstroke sports technology; when the head rotation angle of an athlete is detected to exceed a preset value, the vibration module vibrates; the system supports wireless data transmission and local storage, provides real-time data feedback and historical data query, helps athletes and coaches to optimize training strategies, and improves technical performance.

Description

Technical Field

[0001] This utility model belongs to swimming auxiliary equipment, and relates to a device for detecting the head rotation angle in backstroke based on a gyroscope sensor. Background Technology

[0002] Backstroke is a technically demanding swimming style. Athletes need to maintain a relatively stable head position during competition to reduce water resistance and increase speed, while simultaneously controlling the coordinated exertion of body muscles. Therefore, the angle of head rotation is crucial in backstroke; excessive rotation can lead to imbalance in body posture and reduced speed, affecting race results. For beginners, insufficient head control can result in improper backstroke technique, increasing the difficulty of learning and potentially leading to incorrect training habits.

[0003] Using auxiliary equipment in backstroke training helps athletes and coaches better understand postural changes during training, thereby adjusting training posture and improving training efficiency. Existing swimming training auxiliary equipment mainly focuses on biosignals such as speed and heart rate; real-time monitoring equipment for head rotation angle during backstroke is still lacking. This invention can achieve real-time detection and data transmission of head rotation angle during backstroke swimming, solving the problem of missing similar products. This invention relies on a gyroscope sensor to detect the angle in real time, achieving the monitoring function of head rotation angle during backstroke swimming in a low-cost, timely, highly reliable, and interference-resistant manner.

[0004] A gyroscope is a precision angular velocity sensor capable of capturing real-time changes in the head rotation angle of an athlete. It boasts advantages such as small size, low cost, and fast response, making it ideal as an auxiliary device for swimming training. However, there are currently few examples of gyroscope applications in this field. Therefore, developing a gyroscope-based head rotation angle monitoring device for backstroke swimming can not only help athletes optimize their techniques but also improve the training efficiency of beginners, possessing significant practical application value and market potential.

[0005] This invention aims to provide a practical and portable head rotation angle monitoring device. By integrating a gyroscope and a wireless data transmission module, it enables real-time monitoring and feedback of head posture during backstroke, providing a scientific basis for swimmer training and competition. Utility Model Content

[0006] This invention provides a gyroscope-based head rotation angle monitoring device for backstroke. The device has a simple structure and small size, and can monitor the head rotation angle of athletes in real time and accurately during the backstroke process. It reminds athletes of the head angle through vibration and transmits the data to the terminal device wirelessly, providing coaches with instant feedback and optimizing their technical movements.

[0007] The technical solution of this utility model:

[0008] A device for detecting the head rotation angle in backstroke swimming based on a gyroscope sensor includes:

[0009] Fixing device; detection and control device integrated with the fixing device;

[0010] The aforementioned fixing device is used to fix the detection and control device to the head of the backstroke swimmer;

[0011] The control device includes a gyroscope sensor, a Bluetooth module, a vibration module, a power module, and a host computer;

[0012] Gyroscope sensor: responsible for detecting the rotation angle data of the athlete's head during backstroke;

[0013] Bluetooth module: Receives rotation angle data detected by the gyroscope sensor and sends the rotation angle data directly to the host computer via Bluetooth communication;

[0014] Vibration module: When it receives a high-level signal from the gyroscope sensor, it initiates vibration to remind athletes to pay attention to their technical movements;

[0015] The power module uses a rechargeable battery to power the detection and control device;

[0016] The host computer receives the rotation angle data transmitted by the Bluetooth module, and sets the maximum rotation angle value for the gyroscope module to emit a high-level signal.

[0017] Furthermore, the fixing device includes a head fixing strap, the two ends of which are connected to the detection and control device through ring buckles to form an integrated structure.

[0018] Furthermore, the detection and control device is located on the forehead of the backstroke swimmer.

[0019] Furthermore, the gyroscope sensor is used to detect the angular velocity change of the backstroke swimmer's head in real time, and obtain the rotation angle data of the backstroke swimmer's head to the Bluetooth module; at the same time, the gyroscope sensor determines whether the rotation angle of the backstroke swimmer's head exceeds the maximum rotation angle value set by the host computer. If it exceeds the maximum rotation angle value, the gyroscope module sends a high-level signal to the vibration module to stimulate the vibration module to vibrate.

[0020] Furthermore, the detection and control device also includes a storage module; the storage module is used to store the collected rotation angle data in a built-in memory card.

[0021] Furthermore, the power module is powered by a 3.7V rechargeable battery.

[0022] Furthermore, the detection and control device is provided with a housing on its outer side.

[0023] Furthermore, the backstroke head rotation angle detection device also includes a storage module for storing rotation angle data.

[0024] The beneficial effects of this invention are as follows: This invention uses a high-precision gyroscope sensor to accurately monitor the head rotation angle. It features a simple structure and low cost, while also being compact, lightweight, waterproof, and vibration-proof, ensuring comfortable wear and adaptability to backstroke techniques. When the invention detects that the athlete's head rotation angle exceeds a preset value, the vibration module will vibrate. This invention supports wireless data transmission and local storage, providing real-time data feedback and historical data query, helping athletes and coaches optimize training strategies and improve technical performance. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0026] In the picture: 1- Head strap; 2- Left side retaining ring; 3- Right side retaining ring. Detailed Implementation

[0027] The specific embodiments of this utility model are further described below with reference to the accompanying drawings and technical solutions.

[0028] (1) Equipment structure installation

[0029] The backstroke head rotation angle detection device uses a head strap to position the detection control device in the center of the head. Athletes first place the detection control device against their forehead, then stretch the head strap to the back of their head, adjusting its length for a comfortable fit. This invention uses a lightweight, non-slip, adjustable silicone head strap to ensure a secure fit to the forehead, preventing shifting due to swimming movements or water currents. The device is lightweight and has a flat design, minimizing extra burden on the athlete and reducing discomfort, making it suitable for extended water training sessions. Athletes can choose to wear the device inside or outside their swim cap.

[0030] The forehead-mounted design directly reflects head rotation, ensuring data accuracy and consistency while avoiding interference from changes in neck or back-of-the-head angles during swimming, maximizing the recording of the athlete's head displacement angle. The device's detection and control unit fits snugly against the forehead, and its optimized structural design ensures real-time response of the gyroscope sensor to changes in head angular velocity. To enhance protection, the device's casing is waterproof, capable of withstanding the high humidity and high-impact water conditions of swimming environments.

[0031] (2) Data Acquisition and Processing

[0032] Once the device is turned on, the gyroscope sensor begins to collect real-time data on the head's angle and angular velocity. After receiving the data, the host computer uses a built-in nine-axis algorithm to convert the real-time rotation angles into two-dimensional and three-dimensional motion images, facilitating more detailed motion analysis by the coach.

[0033] (3) Data transmission and storage

[0034] The processed head rotation angle data is transmitted to a host computer in real time via Bluetooth module, supporting devices with Bluetooth communication such as smartphones or laptops. Users can also view or retrieve the recorded head rotation angle change curve in real time through the host computer or mobile software. Simultaneously, the device's built-in storage unit automatically saves all data for subsequent analysis. When the head rotation angle exceeds a preset value, the gyroscope sensor emits a high-level signal, activating the vibration module to vibrate and remind the athlete to adjust their technique.

[0035] (4) Power Management and Equipment Maintenance

[0036] The device is powered by a built-in battery and supports charging via a Type-C interface. A single charge provides up to 5 hours of continuous use. After use, users should wipe the device's exterior with a dry cloth to prevent damage from residual moisture during prolonged storage. Regularly check the device's waterproof seal to ensure it maintains good performance in swimming environments.

Claims

1. A device for detecting the head rotation angle in backstroke swimming based on a gyroscope sensor, characterized in that, include: Fixture; A detection and control device integrated with the fixed device; The aforementioned fixing device is used to fix the detection and control device to the head of the backstroke swimmer; The control device includes a gyroscope sensor, a Bluetooth module, a vibration module, a power module, and a host computer. The gyroscope sensor is responsible for detecting the rotation angle data of the athlete's head during backstroke. Bluetooth module: Receives rotation angle data detected by the gyroscope sensor and sends the rotation angle data directly to the host computer via Bluetooth communication; Vibration module: When it receives a high-level signal from the gyroscope sensor, it initiates vibration to remind athletes to pay attention to their technical movements; The power module uses a rechargeable battery to power the detection and control device; The host computer receives the rotation angle data transmitted by the Bluetooth module, and sets the maximum rotation angle value for the gyroscope module to emit a high-level signal.

2. The backstroke head rotation angle detection device based on a gyroscope sensor according to claim 1, characterized in that, The fixing device includes a head fixing strap, the two ends of which are connected to the detection and control device through buckles to form an integrated structure.

3. A backstroke head rotation angle detection device based on a gyroscope sensor according to claim 1 or 2, characterized in that, The detection and control device is located on the forehead of the backstroke swimmer.

4. The backstroke head rotation angle detection device according to claim 1 or 2, characterized in that, The gyroscope sensor is used to detect the angular velocity change of the backstroke swimmer's head in real time, and transmits the rotation angle data of the backstroke swimmer's head to the Bluetooth module. At the same time, the gyroscope sensor determines whether the rotation angle of the backstroke swimmer's head exceeds the maximum rotation angle value set by the host computer. If it exceeds the maximum rotation angle value, the gyroscope module sends a high-level signal to the vibration module to stimulate the vibration module to vibrate.

5. The backstroke head rotation angle detection device according to claim 1 or 2, characterized in that, The detection and control device also includes a storage module; the storage module is used to store the collected rotation angle data in a built-in memory card.

6. The backstroke head rotation angle detection device according to claim 1 or 2, characterized in that, The power module is powered by a 3.7V rechargeable battery.

7. The backstroke head rotation angle detection device according to claim 1 or 2, characterized in that, The detection and control device is equipped with an outer casing.

8. The backstroke head rotation angle detection device according to claim 1 or 2, characterized in that, The backstroke head rotation angle detection device also includes a storage module for storing rotation angle data.

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