Skiing posture correction method and device

Abstract

The invention provides a skiing posture correction method and device, and relates to the technical field of skiing teaching, and the method comprises the steps: synchronously collecting plantar pressure distribution characteristic data and ankle joint inclination data of a skier; when the plantar pressure distribution data and / or the ankle inclination data meet the preset unbalance judgment condition, an unbalance adjusting signal is triggered; the imbalance adjustment signal includes at least one of a haptic alert signal related to a severity of the imbalance, a dynamic visual signal including a pressure distribution characteristic, and a sound indication signal having a joint angle quantitative indicator. According to the invention, the skiing posture of the skier can be intelligently and accurately corrected, and the correction efficiency of the skiing posture is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of skiing teaching, and in particular to a skiing posture correction method and device. Background Art

[0002] With the rapid development of skiing and increased public participation, the need for scientific instruction in skiing technique has become increasingly prominent. Traditional skiing techniques rely primarily on manual observation and empirical judgment, which are subject to limitations such as high subjectivity and poor real-time feedback. Furthermore, manual instruction suffers from long feedback cycles, making it difficult for skiers to detect deviations in their movements and make dynamic adjustments. This leads to fixed patterns of incorrect movements, hindering training efficiency.

[0003] In recent years, some ski assist devices have attempted to correct skiing posture through wearable devices, such as mechanically fixing the foot's posture with a rigid bracket. These methods physically constrain the ankle joint to maintain a neutral position or limit the foot's rotation angle. While they can temporarily correct obvious incorrect posture, they offer poor comfort and inhibit the skier's ability to adjust to complex snow conditions through active muscle force. Therefore, intelligently and accurately correcting a skier's skiing posture has become a pressing issue for those skilled in the field. Summary of the Invention

[0004] The problem solved by the present invention is how to intelligently and accurately correct the skiing posture of a skier.

[0005] In order to solve the above problems, the present invention provides a skiing posture correction method and device.

[0006] In a first aspect, the present invention provides a method for correcting skiing posture, comprising:

[0007] Synchronously collect the skier's plantar pressure distribution characteristic data and ankle joint tilt data;

[0008] When the plantar pressure distribution data and / or the ankle joint tilt data meet a preset imbalance determination condition, triggering an imbalance adjustment signal;

[0009] The imbalance adjustment signal includes at least one of a tactile reminder signal related to the severity of the imbalance, a dynamic visual signal containing pressure distribution characteristics, and a sound indication signal with a quantitative index of a joint angle.

[0010] Preferably, the preset imbalance determination condition includes at least one of an abnormal center of gravity and an abnormal ankle joint tilt;

[0011] The center of gravity abnormality includes: the ratio of the total pressure of the forefoot area to the total pressure of the sole in the sole pressure distribution data is greater than a preset pressure ratio;

[0012] The ankle joint inclination abnormality includes: the inclination angle of the ankle joint deviates from a preset inclination angle range, and the deviation duration exceeds a preset time threshold.

[0013] Preferably, the tactile reminder signal is an intermittent vibration sequence, and the vibration intensity of the intermittent vibration sequence is positively correlated with the absolute value of the deviation from the abnormal value.

[0014] Preferably, the deviation abnormal value includes a center of gravity deviation abnormal value and an inclination angle deviation abnormal value. The center of gravity deviation abnormal value is the difference between the ratio of the total pressure in the forefoot area to the total pressure in the plantar pressure distribution data and the preset pressure ratio. The inclination angle deviation abnormal value is the larger value of the absolute value of the difference between the inclination angle of the ankle joint and the larger one of the upper limit and lower limit of the preset inclination angle range.

[0015] Preferably, the dynamic visual signal is a light color gradient signal, and the light color gradient signal changes according to the difference between the ratio of the total pressure in the forefoot area to the total pressure in the plantar pressure distribution data and the preset pressure ratio. The hue angle of the light color in the light color gradient signal changing from green to red is directly proportional to the absolute value of the difference.

[0016] Preferably, the sound indication signal changes based on the larger value of the absolute value of the difference between the inclination angle of the ankle joint and the larger one of the upper limit and the lower limit of the preset inclination angle range.

[0017] Preferably, before triggering the imbalance adjustment signal, the method further includes:

[0018] performing normalization preprocessing on the plantar pressure distribution characteristic data;

[0019] Perform frequency domain filtering on the ankle joint tilt data.

[0020] Preferably, the plantar pressure distribution characteristic data is collected by an array of capacitive pressure sensors evenly distributed in the plantar area, and the ankle joint tilt data is collected by an inclinometer.

[0021] Preferably, the capacitive pressure sensor array is integrated into the insole of the ski boot and covers the forefoot to the heel, and the inclination gyroscope is embedded in the ankle strap of the ski boot.

[0022] In a second aspect, the present invention further provides a skiing posture correction device, comprising:

[0023] A data acquisition module is used to synchronously collect the skier's plantar pressure distribution characteristic data and ankle joint tilt data;

[0024] a judgment and correction module, configured to trigger an imbalance adjustment signal when the plantar pressure distribution data and / or the ankle joint tilt data meet a preset imbalance judgment condition;

[0025] The imbalance adjustment signal includes at least one of a tactile reminder signal related to the severity of the imbalance, a dynamic visual signal containing pressure distribution characteristics, and a sound indication signal with a quantitative index of a joint angle.

[0026] Compared with the existing technology, the beneficial effects of the present invention are: first, the joint judgment mechanism of synchronously collecting plantar pressure distribution characteristic data and ankle joint tilt data breaks through the limitations of traditional single sensor detection (for example, plantar pressure data alone cannot identify the center of gravity shift caused by excessive ankle inversion), and the correlation analysis of plantar pressure data and ankle joint tilt data can accurately distinguish the difference between the skier's forward leaning force and the imbalance state; further, using "plantar pressure data and / or ankle joint tilt data meeting conditions" as the trigger criterion can ensure that single-dimensional imbalance (such as only the center of gravity moves forward but the ankle joint does not exceed the limit) can still be effectively warned (for example, when the forefoot pressure suddenly increases and exceeds the threshold during high-speed sliding, even if the ankle joint does not exceed the limit, early intervention is required), thereby improving the accuracy of skiing posture correction; finally, the combined application of multimodal imbalance adjustment signals (at least one of touch, dynamic vision, and sound) adapts to complex skiing scenes through a redundant feedback mechanism across perception channels, significantly shortens the user's reaction time to the imbalance state, and improves the interactivity of the skier's skiing posture correction. The present invention can intelligently and accurately correct the skiing posture of a skier, thereby improving the correction efficiency of the skiing posture. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A schematic flow chart of a skiing posture correction method provided by an embodiment of the present invention;

[0028] Figure 2 A schematic structural diagram of ski boots in a ski posture correction method provided by one embodiment of the present invention;

[0029] Figure 3 This is a schematic structural diagram of a skiing posture correction device provided by one embodiment of the present invention. DETAILED DESCRIPTION

[0030] To make the above-mentioned objects, features, and advantages of the present invention more clearly understood, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. Although certain embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as being limited to the embodiments described herein. Instead, these embodiments are provided to provide a more thorough and complete understanding of the present invention. It should be understood that the drawings and embodiments of the present invention are for illustrative purposes only and are not intended to limit the scope of protection of the present invention.

[0031] It should be understood that the various steps described in the method embodiments of the present invention may be performed in different orders and / or in parallel. In addition, the method embodiments may include additional steps and / or omit the steps shown. The scope of the present invention is not limited in this respect.

[0032] The term "including" and its variations used in this document are open inclusions, that is, "including but not limited to"; the term "based on" means "based at least in part on"; the term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one other embodiment"; the term "some embodiments" means "at least some embodiments"; the term "optionally" means "optional embodiments". The relevant definitions of other terms will be given in the following description. It should be noted that the concepts of "first", "second", etc. mentioned in the present invention are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0033] It should be noted that the modifications of "one" and "multiple" mentioned in the present invention are illustrative rather than restrictive. Those skilled in the art should understand that unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0034] The names of the messages or information exchanged between multiple devices in the embodiments of the present invention are only used for illustrative purposes and are not used to limit the scope of these messages or information.

[0035] The current mainstream ski posture correction technology is still highly dependent on the coach's on-the-spot experience and visual observation. Its technical bottlenecks are mainly reflected in the lack of dynamic perception accuracy and the lack of feedback timeliness. Specifically, it is difficult for coaches to capture ski posture parameters such as ankle internal rotation and torso offset angle (such as the typical error range > 5°), and environmental interference such as snow reflections and fogged goggles will further reduce the reliability of judgment. More importantly, manual feedback needs to be transmitted indirectly through verbal instructions or demonstrations. Skiers often receive correction suggestions only after completing the sliding pass. The correction of movement deviation lags behind the actual movement phase, causing the wrong movement pattern to be repeatedly reinforced, resulting in poor ski posture correction.

[0036] While existing ski orthotic devices incorporate physical constraints (e.g., ankle braces that rigidly limit the foot's roll angle), they employ a pre-set static threshold to forcibly adjust the motion trajectory. This creates two technical inconsistencies: First, the rigid constraint inhibits the skier's ability to independently adjust the depth of their foot's pressure, hindering dynamic balance adjustment in complex terrain. Second, ski orthotic devices are unable to respond in real time to motion parameter drift caused by changes in snow hardness and sliding speed (e.g., an increase in the range of joint torque fluctuations), resulting in a mismatch between the corrective action and the real-time operating conditions. Therefore, intelligent and precise correction of a skier's skiing posture has become a pressing issue for researchers in this field.

[0037] In view of the above problems, the present invention provides a skiing posture correction method and device.

[0038] Reference Figure 1 The present invention provides a skiing posture correction method, comprising:

[0039] S11. Synchronously collect the skier's plantar pressure distribution characteristic data and ankle joint tilt data.

[0040] Specifically, a pressure sensor installed in a ski boot and a tilt sensor attached to the skier's ankle simultaneously collect data on the pressure distribution characteristics of the skier's foot and ankle tilt. These sensors can accurately capture the pressure changes between the skier's foot and the snow, as well as the movement of the ankle joint, in real time during the skiing process, providing a data foundation for correcting the skier's posture.

[0041] It should be explained that step S11 generally occurs after receiving a ski correction instruction, which can be a manually input instruction or a specific posture signal obtained by a sensor on the ski boots after the skier puts on the ski boots.

[0042] S12. When the plantar pressure distribution data and / or the ankle joint tilt data meet a preset imbalance determination condition, trigger an imbalance adjustment signal.

[0043] Specifically, imbalance determination criteria can be set for different skier skill levels. For example, for beginners, a large pressure imbalance or significant ankle excursion can trigger imbalance determination; for advanced skiers, a smaller pressure imbalance or slight ankle excursion can be set as the preset imbalance determination criteria. Once the system detects that the skier's plantar pressure distribution data and / or ankle tilt data meet the preset imbalance determination criteria, it automatically triggers an imbalance adjustment signal, which helps the skier adjust their posture in a timely manner, thereby achieving the goal of correcting their skiing posture.

[0044] The imbalance adjustment signal includes at least one of a tactile reminder signal related to the severity of the imbalance, a dynamic visual signal containing pressure distribution characteristics, and a sound indication signal with a quantitative index of a joint angle.

[0045] Furthermore, the tactile reminder signal can be a vibration device (such as a small vibration motor embedded in a ski boot) that transmits tactile information related to the severity of the imbalance to the skier. The dynamic visual signal can be a dynamic visual signal containing the current pressure distribution characteristics displayed using AR glasses or other types of head-mounted display devices, or an associated terminal large screen, so that the skier can intuitively see the pressure situation on the sole of the foot and make corresponding adjustments accordingly. The audio indication signal can be an audio indication signal with quantitative joint angle indicators emitted through headphones or built-in speakers. These audio cues can help skiers understand the specific position and angle of their ankle joints and guide them on how to move their bodies correctly to achieve a better balance.

[0046] Compared with the existing technology, the beneficial effects of the present invention are: first, the joint judgment mechanism of synchronously collecting plantar pressure distribution characteristic data and ankle joint tilt data breaks through the limitations of traditional single sensor detection (for example, plantar pressure data alone cannot identify the center of gravity shift caused by excessive ankle inversion), and the correlation analysis of plantar pressure data and ankle joint tilt data can accurately distinguish the difference between the skier's forward leaning force and the imbalance state; further, using "plantar pressure data and / or ankle joint tilt data meeting conditions" as the trigger criterion can ensure that single-dimensional imbalance (such as only the center of gravity moves forward but the ankle joint does not exceed the limit) can still be effectively warned (for example, when the forefoot pressure suddenly increases and exceeds the threshold during high-speed sliding, even if the ankle joint does not exceed the limit, early intervention is required), thereby improving the accuracy of skiing posture correction; finally, the combined application of multimodal imbalance adjustment signals (at least one of touch, dynamic vision, and sound) adapts to complex skiing scenes through a redundant feedback mechanism across perception channels, significantly shortens the user's reaction time to the imbalance state, and improves the interactivity of the skier's skiing posture correction. The present invention can intelligently and accurately correct the skiing posture of a skier, thereby improving the correction efficiency of the skiing posture.

[0047] Reference Figure 2 In one embodiment, the preset imbalance determination condition includes at least one of an abnormal center of gravity and an abnormal ankle joint tilt;

[0048] The center of gravity abnormality includes: a ratio of the total pressure in the forefoot area to the total pressure in the sole of the foot in the sole pressure distribution data is greater than a preset pressure ratio.

[0049] Specifically, the pressure sensor array 2 installed in the ski boots can be used to collect the pressure distribution data of the sole in real time, and the ratio of the total pressure in the forefoot area (the sum of the pressure values detected by each pressure sensor in the forefoot area) to the total pressure in the sole (the sum of the pressure values detected by all pressure sensors in the sole) can be calculated. If the ratio exceeds a pre-set pressure ratio (for example, when sliding on flat ground, this ratio should not exceed 70% to ensure the stability of the skier's center of gravity), it is considered that there is an abnormal center of gravity. This indicates that the skier's weight is too concentrated in the front of the foot, which may cause loss of balance. It should be explained that the forefoot area of the sole can be a designated area in the sole area, which can be set in advance according to the actual situation of the manufacturer, and no specific restrictions are imposed on this part here.

[0050] The ankle joint tilt abnormality includes: the ankle joint tilt angle deviates from the preset tilt angle range, and the deviation duration exceeds the preset time threshold. Specifically, the ankle joint angle change is monitored by the tilt sensor 1 attached to the skier's ankle joint.

[0051] For example, consider an intermediate skier practicing downhill skiing. The system first collects the skier's plantar pressure distribution and ankle tilt data. At a certain moment, the system detects that the ratio of the skier's forefoot total pressure to the plantar total pressure reaches 75%, exceeding the preset pressure ratio limit of 70%, triggering a center of gravity abnormality. Simultaneously, the system also discovers that the skier's left ankle tilt angle has reached +8°, exceeding the preset tilt angle range. This state persists for 3 seconds, exceeding the preset 2-second threshold, thus also triggering a diagnosis of ankle tilt abnormality.

[0052] In one embodiment, the tactile reminder signal is an intermittent vibration sequence, and the vibration intensity of the intermittent vibration sequence is positively correlated with the absolute value of the deviation from the abnormal value.

[0053] Specifically, the tactile reminder signal in this embodiment uses an intermittent vibration sequence to convey information to the skier. The vibration sequence can not only effectively attract the skier's attention, but also provide the skier with specific feedback on the severity of the imbalance by adjusting the relationship between the vibration intensity and the absolute value of the deviation from the abnormal value. A basic vibration intensity can be preset (for example, the minimum vibration intensity when the deviation from the abnormal value just reaches the trigger condition), and the vibration intensity increases linearly or nonlinearly as the deviation from the abnormal value increases. Specifically, if the absolute value of the deviation from the abnormal value is larger, it indicates that the skier's posture imbalance is more serious, and the vibration intensity should also increase accordingly. For example, if the ratio of the total pressure in the forefoot area to the total pressure on the sole of the foot exceeds the preset pressure ratio by 5%, it is set to the minimum vibration intensity; if the excess ratio reaches 10%, the vibration intensity is doubled; and so on, to ensure that the skier can feel the change in the severity of the imbalance.

[0054] In one embodiment, the deviation abnormal value includes a center of gravity deviation abnormal value and an inclination angle deviation abnormal value, the center of gravity deviation abnormal value is the difference between the ratio of the total pressure in the forefoot area to the total pressure in the plantar pressure distribution data and the preset pressure ratio, and the inclination angle deviation abnormal value is the larger of the absolute values of the differences between the inclination angle of the ankle joint and the upper and lower limits of the preset inclination angle range.

[0055] Specifically, the pressure distribution data of the skier's foot can be obtained in real time through the sensor, especially the ratio of the total pressure in the forefoot area to the total pressure on the foot. Then, the ratio is compared with the preset pressure ratio (for example, 70%), and the difference is the center of gravity deviation abnormality. The calculation method of the tilt angle deviation abnormality is: use the sensor to monitor the skier's ankle inclination angle, and compare it with the preset tilt angle range (for example, -5° to +5°). If the inclination angle of the ankle joint exceeds this range, the degree to which it exceeds the upper limit or lower limit is calculated, and the larger deviation is selected as the tilt angle deviation abnormality.

[0056] In one embodiment, the dynamic visual signal is a light color gradient signal, and the light color gradient signal changes according to the difference between the ratio of the total pressure in the forefoot area to the total pressure in the sole of the foot in the sole of the foot pressure distribution data and a preset pressure ratio. The hue angle of the light color in the light color gradient signal changing from green to red is directly proportional to the absolute value of the difference.

[0057] In this embodiment, the dynamic visual signal uses a light color gradient signal to intuitively display the abnormal situation of the skier's foot pressure distribution. The dynamic visual signal signal conveys the degree to which the ratio of the total pressure in the forefoot area to the total pressure in the sole of the foot deviates from the preset pressure ratio by changing the light color of a specific area on a display device (such as AR glasses or a head-mounted display) from green to red. For example, the setting of the light color gradient mechanism can be: setting a basic color range in the system, that is, from green representing a safe state to red representing a dangerous or unbalanced state; the color gradient is based on the change of the hue angle, usually the hue angle corresponding to green is about 120 degrees, and the hue angle corresponding to red is about 0 degrees or 360 degrees. As the absolute value of the difference between the total pressure in the forefoot area and the total pressure in the sole of the foot deviates from the preset pressure ratio, the light color will gradually change from green to red along the color wheel.

[0058] In another embodiment, the light color gradient mechanism may be set to include only three colors, namely, green, yellow, and red. Green corresponds to a situation where the difference between the ratio of the total pressure in the forefoot area to the total pressure in the plantar pressure distribution data and a preset pressure ratio is within a first pressure ratio range. Yellow corresponds to a situation where the difference between the ratio of the total pressure in the forefoot area to the total pressure in the plantar pressure distribution data and the preset pressure ratio is within a second pressure ratio range. Red corresponds to a situation where the difference between the ratio of the total pressure in the forefoot area to the total pressure in the plantar pressure distribution data and the preset pressure ratio is within a third pressure ratio range.

[0059] Wherein, any numerical value in the third pressure ratio range is greater than any numerical value in the second pressure ratio range, and any numerical value in the second pressure ratio range is greater than any numerical value in the first pressure ratio range.

[0060] Through this embodiment, skiers can quickly understand their current posture status by observing the changes in light color on the display device, and make corresponding adjustments accordingly to improve skiing safety and skill level.

[0061] In one embodiment, the sound indication signal changes based on the larger value of the absolute values of the differences between the inclination angle of the ankle joint and the upper limit and the lower limit of the preset inclination angle range.

[0062] Specifically, the sound indication signal is used to convey to the skier the degree to which the ankle joint inclination angle deviates from the preset angle range. This sound indication signal is based on the larger value change of the absolute value of the difference between the ankle joint inclination angle and the upper and lower limits of the preset inclination angle range, which can help the skier adjust his posture in time to maintain the correct skiing posture. The sound indication signal is adjusted based on the absolute value change of the inclination angle deviation anomaly. Specifically, a set of specific sound prompt patterns can be designed, and these sound prompt patterns become more urgent or obvious as the inclination angle deviation anomaly increases. For example: when the inclination angle deviation anomaly is small, the system can play a lower-frequency sound or a calmer voice prompt (such as "Please slightly adjust your ankle position"). As the inclination angle deviation anomaly increases, the sound frequency can increase, the volume can be increased, or more urgent language can be used (such as "Please pay attention! The ankle position needs to be significantly adjusted!").

[0063] In one embodiment, before triggering the imbalance adjustment signal, the method further includes:

[0064] performing normalization preprocessing on the plantar pressure distribution characteristic data;

[0065] Perform frequency domain filtering on the ankle joint tilt data.

[0066] Specifically, the normalization preprocessing of the plantar pressure distribution characteristic data includes: first, obtaining the pressure readings of all sensor points and calculating the total plantar pressure; then, for the pressure value of each sensor point, dividing it by the total plantar pressure to obtain the normalized pressure value, so as to ensure that the pressure value of each sensor point falls between 0 and 1, which is convenient for subsequent analysis and comparison. By normalizing the plantar pressure distribution characteristic data, data collected by different skiers or the same skier at different time points can be compared on the same scale, eliminating the impact caused by individual differences or changes in measurement conditions. Frequency domain filtering processing of the ankle joint tilt data can include: converting the original ankle joint tilt angle data to the frequency domain through fast Fourier transform; then, according to the needs of the actual application scenario, setting appropriate low-pass filter parameters, and then converting the processed data from the frequency domain back to the time domain for further analysis and real-time feedback to the skier. This embodiment can remove noise interference in ankle tilt data, especially high-frequency noise (which may come from errors in the sensor itself, the influence of the external environment, or inevitable small-amplitude jitters during skiing), thereby extracting effective information that truly reflects the skier's posture state, thereby improving the accuracy of skiing posture correction.

[0067] In one embodiment, the plantar pressure distribution characteristic data is collected by an array of capacitive pressure sensors evenly distributed in the plantar area, and the ankle joint tilt data is collected by an inclinometer.

[0068] Specifically, the sensor array is evenly distributed in the sole area inside the ski boot to ensure full coverage of the entire foot, including key areas such as the forefoot, toes, arch and heel; and the inclinometer is usually installed in the ski boot or directly attached to the skier's ankle joint, so as to accurately sense the angle changes of the ankle joint relative to the ground.

[0069] In one embodiment, the capacitive pressure sensor array is integrated into the insole of the ski boot and covers the forefoot to the heel, and the inclination gyroscope is embedded in the ankle strap of the ski boot.

[0070] In this embodiment, to efficiently collect data on the skier's plantar pressure distribution and ankle tilt, a capacitive pressure sensor array and an inclinometer are cleverly integrated into the boot design, ensuring no disruption to the skier's skiing. Furthermore, other parts of the boot can be made of softer materials to enhance comfort during posture correction training.

[0071] Reference Figure 3 The present invention also provides a skiing posture correction device 30, comprising:

[0072] A data acquisition module 31 is used to synchronously acquire the skier's plantar pressure distribution characteristic data and ankle joint tilt data;

[0073] a judgment and correction module 32, configured to trigger an imbalance adjustment signal when the plantar pressure distribution data and / or the ankle joint tilt data meet a preset imbalance judgment condition;

[0074] The imbalance adjustment signal includes at least one of a tactile reminder signal related to the severity of the imbalance, a dynamic visual signal containing pressure distribution characteristics, and a sound indication signal with a quantitative index of a joint angle.

[0075] Compared with the prior art, the beneficial effects of the present invention are as follows: first, the joint judgment mechanism of synchronously collecting the plantar pressure distribution characteristic data and the ankle joint tilt data by the data acquisition module 31 breaks through the limitations of traditional single sensor detection (for example, the center of gravity shift caused by excessive ankle inversion cannot be identified by relying solely on the plantar pressure data), and the difference between the skier's forward leaning force and the imbalance state can be accurately distinguished through the correlation analysis of the plantar pressure data and the ankle joint tilt data; then, the judgment correction module 32 uses "the plantar pressure data and / or the ankle joint tilt data meet the conditions" as a trigger. The proposed system provides a judgment criterion that ensures effective early warning for single-dimensional imbalances (e.g., if the center of gravity shifts forward but the ankle joint remains within limits) (for example, if the forefoot pressure suddenly increases and exceeds a threshold during high-speed skiing, early intervention is required even if the ankle joint remains within limits), thereby improving the accuracy of ski posture correction. Finally, the combined application of multimodal imbalance adjustment signals (at least one of touch, dynamic vision, and sound) adapts to complex skiing scenarios through a redundant feedback mechanism across sensory channels, significantly shortening the user's reaction time to imbalance states and enhancing the interactivity of the skier's ski posture correction. This invention enables intelligent and precise correction of a skier's ski posture, improving the efficiency of ski posture correction.

[0076] Those skilled in the art will understand that all or part of the processes in the above-mentioned embodiments can be implemented by instructing the relevant hardware through a computer program. The program can be stored in a computer-readable storage medium. When the program is executed, it can include the processes of the embodiments of the above-mentioned methods. The storage medium can be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM). In this application, the units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the embodiments of the present invention. In addition, the functional units in the various embodiments of the present invention can be integrated into a processing unit, or each unit can exist physically separately, or two or more units can be integrated into a single unit. The above-mentioned integrated units can be implemented in the form of hardware or software functional units.

[0077] Although the present invention is disclosed as above, the protection scope of the present invention is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications will fall within the protection scope of the present invention.

Claims

1. A skiing posture correction method, characterized in that: include: Synchronously collect the skier's plantar pressure distribution characteristic data and ankle joint tilt data; When the plantar pressure distribution data and / or the ankle joint tilt data meet a preset imbalance determination condition, triggering an imbalance adjustment signal; The imbalance adjustment signal includes at least one of a tactile reminder signal related to the severity of the imbalance, a dynamic visual signal containing pressure distribution characteristics, and a sound indication signal with a quantitative index of a joint angle.

2. The skiing posture correction method according to claim 1, characterized in that: The preset imbalance determination condition includes at least one of an abnormal center of gravity and an abnormal ankle joint tilt; The center of gravity abnormality includes: the ratio of the total pressure of the forefoot area to the total pressure of the sole in the sole pressure distribution data is greater than a preset pressure ratio; The ankle joint inclination abnormality includes: the inclination angle of the ankle joint deviates from a preset inclination angle range, and the deviation duration exceeds a preset time threshold.

3. The skiing posture correction method according to claim 2, characterized in that: The tactile reminder signal is an intermittent vibration sequence, and the vibration intensity of the intermittent vibration sequence is positively correlated with the absolute value of the deviation from the abnormal value.

4. The skiing posture correction method according to claim 3, characterized in that: The deviation abnormal value includes the center of gravity deviation abnormal value and the inclination angle deflection abnormal value. The center of gravity deviation abnormal value is the difference between the ratio of the total pressure in the forefoot area to the total pressure in the plantar pressure distribution data and the preset pressure ratio. The inclination angle deflection abnormal value is the larger value of the absolute value of the difference between the inclination angle of the ankle joint and the upper limit and lower limit of the preset inclination angle range.

5. The skiing posture correction method according to claim 3, characterized in that: The dynamic visual signal is a light color gradient signal, which changes according to the difference between the ratio of the total pressure in the forefoot area to the total pressure in the sole of the foot in the sole pressure distribution data and a preset pressure ratio. The hue angle of the light color in the light color gradient signal changing from green to red is directly proportional to the absolute value of the difference.

6. The skiing posture correction method according to claim 3, characterized in that: The sound indication signal changes based on a larger absolute value of a difference between the inclination angle of the ankle joint and an upper limit and a lower limit of the preset inclination angle range.

7. The skiing posture correction method according to claim 1, characterized in that: Before triggering the imbalance adjustment signal, the method further includes: performing normalization preprocessing on the plantar pressure distribution characteristic data; Perform frequency domain filtering on the ankle joint tilt data.

8. The skiing posture correction method according to claim 1, characterized in that: The plantar pressure distribution characteristic data is collected by a capacitive pressure sensor array evenly distributed in the plantar area, and the ankle joint tilt data is collected by an inclinometer.

9. The skiing posture correction method according to claim 8, characterized in that: The capacitive pressure sensor array is integrated into the insole of the ski boot and covers the forefoot to the heel, and the inclination gyroscope is embedded in the ankle strap of the ski boot.

10. A skiing posture correction device, characterized in that: include: A data acquisition module is used to synchronously collect the skier's plantar pressure distribution characteristic data and ankle joint tilt data; a judgment and correction module, configured to trigger an imbalance adjustment signal when the plantar pressure distribution data and / or the ankle joint tilt data meet a preset imbalance judgment condition; The imbalance adjustment signal includes at least one of a tactile reminder signal related to the severity of the imbalance, a dynamic visual signal containing pressure distribution characteristics, and a sound indication signal with a quantitative index of a joint angle.

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