Photographing device for martial arts action analysis

Abstract

The present application relates to photographic device technical field, disclose a kind of photographic device for martial arts action analysis, comprising: sector block, annular track, support frame, drive assembly and microprocessor, multiple sector blocks are spliced into annular plate, each sector block is provided with a pressure sensor, annular track is fixed on annular plate, annular track is concentric with annular plate, the lower end of support frame is slidably fitted in annular track, drive assembly is connected to support frame, for driving support frame along annular track sliding, microprocessor is respectively connected with drive assembly and pressure sensor signal, when microprocessor receives the pressure detected by two pressure sensors, then the specific position of the two sector blocks where two pressure sensors are located is obtained, and the included angle of two sector blocks is calculated, by controlling drive assembly to drive support frame to move to the middle position of the included angle, the structure of the present application can automatically adjust the position of photographic equipment according to the movement of practitioner's steps.

Description

Technical Field

[0001] This invention relates to the field of photographic apparatus technology, and in particular to a photographic apparatus for analyzing martial arts movements. Background Technology

[0002] Chinese martial arts are profound and extensive. With the rise of traditional Chinese culture, more and more people have come to love martial arts. In the past, those who learned martial arts were mostly professional martial arts practitioners. Their learning methods were mainly oral and physical instruction from a master. Tai Chi, as a type of martial arts, is increasingly popular because its movements are not very fast and its requirements for physical fitness are not particularly high. Many people learn Tai Chi by watching videos or learning from others in public squares, and then practice on their own at home. To confirm the correctness of their movements, some people will film their practice process and analyze their work by watching the videos later to correct any mistakes in time.

[0003] As ordinary people, unlike professional photographers who have a wide range of equipment to shoot professional videos, capturing both full-body and close-up shots, we usually use a single camera like a mobile phone or DSLR. However, a single camera can only capture a single angle and position. For example, if the camera is placed not far in front of a person, and the person is moving around a lot during practice, this may exceed the camera's shooting range. This could result in the inability to capture the edges of the movements, such as the fine movements of an outstretched foot. It would be difficult to see the complete details of the movements during post-production playback, which would hinder the analysis of the accuracy of all the movements. Summary of the Invention

[0004] This invention provides a photographic device for analyzing martial arts movements, which can automatically adjust the position of the photographic equipment according to the movement of the practitioner's feet, thereby being able to capture complete movement details including the position of the extended foot.

[0005] This invention provides a photographic device for analyzing martial arts movements, comprising:

[0006] Multiple independent sector blocks, a circular track, a support frame for supporting photographic equipment, drive components, and a microprocessor;

[0007] Multiple sector blocks are spliced ​​together to form a ring plate. Each sector block is equipped with a pressure sensor, which is used to detect when the trainee's foot steps on two sector blocks.

[0008] The annular track is fixed to the annular plate and is concentric with the annular plate. The lower end of the support frame is slidably fitted to the annular track. The drive assembly is connected to the support frame and is used to drive the support frame to slide along the annular track.

[0009] The microprocessor is connected to the drive assembly and the pressure sensor signals respectively. When the microprocessor receives the pressure detected by the two pressure sensors, it obtains the specific position of the two sector blocks where the two pressure sensors are located, calculates the included angle between the two sector blocks, and controls the drive assembly to move the support frame to the middle position of the included angle. The middle position is the target position.

[0010] Optional, the drive components include: wheels, permanent magnets, and multiple electromagnets;

[0011] The walking wheel is rotatably connected to the lower end of the support frame via the wheel frame. The permanent magnet is fixed to the outer circumference of the walking wheel. Multiple electromagnets are continuously fixed on the circular track along its extension direction. Each electromagnet is connected to the power supply and microprocessor through a relay.

[0012] The microprocessor controls the movement of the wheels to the target position by controlling the number and position of the energized electromagnets.

[0013] Optionally, a station plate is provided at the center of the annular plate, and the annular plate is arranged around the periphery of the station plate.

[0014] Optionally, a support base is provided at the bottom of the annular plate and the station plate. The station plate is rotatably connected to the upper part of the support base via a rotating shaft, and the annular plate is fixed to the upper end face of the support base.

[0015] Optionally, a rotation angle detection component is provided on the station plate. The rotation angle detection component is used to detect the rotation angle of the station plate relative to the initial position. The rotation angle detection component is connected to a microprocessor. The microprocessor receives the rotation angle detected by the rotation angle detection component and controls the movement position of the drive component through the rotation angle.

[0016] Optionally, the rotation angle detection component includes: a light source emitter and multiple light source receivers. The light source emitter is fixed on the side wall of the station plate. The light source emitted by the light source emitter is in the horizontal direction. The multiple light source receivers are arranged at equal intervals along the inner wall of the annular plate. The multiple light source receivers are arranged in a ring around the outer perimeter of the station plate. The light source emitter and the light source receivers are at the same height. The light source receivers receive the light source emitted by the light source emitter.

[0017] The microprocessor is connected to the light source receiver. After receiving a signal from a light source receiver that has received a light source, the microprocessor calculates the rotation angle of the station plate based on the location of the light source receiver.

[0018] Optionally, the side wall of the station plate has a placement groove, in which the light source emitter is fixed. The inner wall of the annular plate has multiple fixing grooves at equal intervals, in which the light source receiver is fixed.

[0019] Optionally, the support frame can be a height-adjustable telescopic structure.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention fixes the photographic equipment with a support frame. The photographic equipment is not limited to mobile phones or other devices with photographic functions. When the trainee is training, he first stands in the initial position. In this position, the photographic equipment is facing the trainee. During the training, as one foot moves, both feet stand on different sector blocks. The pressure sensors on the sector blocks where both feet are located detect pressure values. After receiving the pressure values ​​from the two sector blocks, the microprocessor calculates the median angle between the two sector blocks and controls the drive component to start working. The drive component drives the support frame to move along the circular track to the median angle. Since the track is circular, the photographic equipment will also rotate a certain angle. Thus, the photographic equipment can be basically facing the trainee in the middle of its entire length after unfolding, thereby being able to capture the movement at the edge and ensuring that the trainee's complete movement details are captured during the training. Attached Figure Description

[0021] Figure 1 A top view of a photographic device for analyzing martial arts movements provided in an embodiment of the present invention;

[0022] Figure 2 A front view of a photographic device for analyzing martial arts movements provided in an embodiment of the present invention;

[0023] Figure 3 for Figure 2 Enlarged schematic diagram of the local structure at point G;

[0024] Figure 4 This is a schematic diagram of the structure of the support provided in an embodiment of the present invention;

[0025] Figure 5 for Figure 4 Enlarged schematic diagram of the local structure at point H;

[0026] Figure 6 This is a schematic diagram of the rotation angle detection component provided in an embodiment of the present invention.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1-Fan-shaped block, 2-Circular track, 3-Support frame, 4-Drive assembly, 40-Walking wheel, 41-Permanent magnet, 42-Electromagnet, 43-Wheel frame, 5-Circular plate, 50-Fixing groove, 6-Pressure sensor, 7-Station plate, 70-Placement groove, 8-Bearing seat, 9-Rotating shaft, 10-Rotation angle detection assembly, 100-Light source emitter, 101-Light source receiver. Detailed Implementation

[0029] The following detailed description of a specific embodiment of the present invention is provided in conjunction with the accompanying drawings. However, it should be understood that the scope of protection of the present invention is not limited to the specific embodiment.

[0030] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the technical solution of this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0031] Chinese martial arts are profound and extensive. With the rise of traditional Chinese culture, more and more people have come to love martial arts. In the past, those who learned martial arts were mostly professional martial arts practitioners. Their learning methods were mainly oral and physical instruction from a master. Tai Chi, as a type of martial arts, is increasingly popular because its movements are not very fast and its requirements for physical fitness are not particularly high. Many people learn Tai Chi by watching videos or learning from others in public squares, and then practice on their own at home. To confirm the correctness of their movements, some people will film their practice process and analyze their work by watching the videos later to correct any mistakes in time.

[0032] As ordinary people, unlike professional photographers who have a wide range of equipment to shoot professional videos, capturing both full-body and close-up shots, we usually use a single camera like a mobile phone or DSLR. However, a single camera can only capture a single angle and position. For example, if the camera is placed not far in front of a person, and the person is moving around a lot during practice, this may exceed the camera's shooting range. This could result in the inability to capture the edges of the movements, such as the fine movements of an outstretched foot. It would be difficult to see the complete details of the movements during post-production playback, which would hinder the analysis of the accuracy of all the movements.

[0033] To address the aforementioned technical problems, embodiments of the present invention provide a photographic device for analyzing martial arts movements. This device automatically adjusts the position of the photographic equipment based on the practitioner's footwork, thereby enabling the complete capture of movement details, including the position of the extended foot. The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Figure 1 This is a top view of a photographic device for analyzing martial arts movements provided in an embodiment of the present invention. Figure 2This is a front view of a photographic device for analyzing martial arts movements provided in an embodiment of the present invention. Figure 3 for Figure 2 A magnified schematic diagram of the local structure at point G. Figure 4 This is a schematic diagram of the structure of the support provided in an embodiment of the present invention. Figure 5 for Figure 4 A magnified schematic diagram of the local structure at point H. Figure 6 This is a schematic diagram of the rotation angle detection component provided in an embodiment of the present invention.

[0034] like Figure 1-3 As shown in the figure, an embodiment of the present invention provides a photographic device for analyzing martial arts movements, comprising: multiple independent fan-shaped blocks 1, an annular track 2, a support frame 3 for supporting photographic equipment, a drive component 4, and a microprocessor. The multiple fan-shaped blocks 1 are spliced ​​together to form an annular plate 5. Each fan-shaped block 1 is provided with a pressure sensor 6, which is used to detect when the practitioner's foot is stepping on two fan-shaped blocks 1 respectively. The annular track 2 is fixed to the annular plate 5 and is concentric with the annular plate 5. The lower end of the support frame 3 is slidably engaged with the annular track 2. The drive component 4 is connected to the support frame 3 and is used to drive the support frame 3 to slide along the annular track 2. The microprocessor is connected to the drive component 4 and the pressure sensors 6 respectively. When the microprocessor receives the pressure detected by the two pressure sensors 6, it obtains the specific position of the two fan-shaped blocks 1 where the two pressure sensors 6 are located, calculates the included angle between the two fan-shaped blocks 1, and controls the drive component 4 to move the support frame 3 to the middle position of the included angle. The middle position is the target position.

[0035] This invention uses a support frame to fix the photographic equipment in place. The photographic equipment is not limited to mobile phones or other devices with photographic functions. During training, the trainee first stands in the initial position (facing the photographic equipment). In this position, the photographic equipment faces the trainee. During the training, as one foot moves, both feet stand on different sector blocks. The pressure sensors on both sector blocks detect pressure values. After receiving the pressure values ​​from the two sector blocks, the microprocessor calculates the midpoint angle between the two sector blocks and controls the drive component to start working. The drive component moves the support frame along the circular track to the midpoint angle. Since the track is circular, the photographic equipment also rotates a certain angle, so that the photographic equipment can basically face the trainee and occupy the middle position of its entire length when unfolded. This allows the movement at the edges to be captured, ensuring that the trainee's complete movement details are captured during the training process.

[0036] For details, please refer to the following: Figure 3In this embodiment, the drive component 4 includes: a walking wheel 40, a permanent magnet 41, and multiple electromagnets 42. The walking wheel 40 is rotatably connected to the lower end of the support frame 3 via a wheel frame 43. The permanent magnet 41 is fixed to the outer periphery of the walking wheel 40. Multiple electromagnets 42 are continuously fixed on the annular track 2 along its extension direction. Each electromagnet 42 is connected to a power supply and a microprocessor via a relay. The microprocessor controls the walking wheel 40 to move to the target position by controlling the number and position of the energized electromagnets 42.

[0037] By energizing the electromagnet 42, it can become magnetic. Once magnetic, it can attract the permanent magnet 41. When the power is turned off, the electromagnet loses its magnetism. By sequentially energizing and de-energizing multiple electromagnets, the traveling wheels can be driven to move. Therefore, by controlling the number and position of the energized electromagnets, the position of the traveling wheels can be controlled, thereby moving the support frame to the required position.

[0038] Since Tai Chi often involves one foot remaining stationary while the other moves to perform the movements, this embodiment includes a standing plate 7 at the center of the circular plate 5, with the circular plate 5 surrounding the standing plate 7. During training, the practitioner initially stands on the standing plate 7 with both feet facing the camera equipment – ​​this is the initial position. Then, during the Tai Chi practice, when the first foot position change occurs, only the moving foot moves to the corresponding sector block. The pressure sensor on that sector block detects the pressure, and the microprocessor calculates the midpoint angle between that sector block and the initial position (the sector block where the camera equipment is located). It then controls the drive assembly to move the support frame to that position. Using this method, when the first foot position change occurs, the microprocessor only needs to calculate the angle change of one foot. Once both feet have changed position (i.e., both feet have left the standing plate), the angle between the two corresponding sector blocks is calculated. This method requires less processing from the microprocessor and has higher accuracy, better coordinating with the shifting movements during Tai Chi training.

[0039] Since Tai Chi training involves some foot rotation movements that drive body rotation, this embodiment will refer to... Figure 4 A support seat 8 is provided at the bottom of the annular plate 5 and the standing plate 7. The standing plate 7 is rotatably connected to the upper part of the support seat 8 via a rotating shaft 9. The annular plate 5 is fixed to the upper end face of the support seat 8. When only one foot needs to be moved out of the standing plate, the other foot is on the standing plate. If the body rotates at this time, the standing plate can rotate in coordination with the foot.

[0040] refer to Figure 5To further ensure that the photographic equipment can capture the detailed movements of various parts of the body, a rotation angle detection component 10 is installed on the standing plate 7. The rotation angle detection component 10 is used to detect the rotation angle of the standing plate 7 relative to its initial position. The rotation angle detection component 10 is connected to a microprocessor. The microprocessor receives the rotation angle detected by the rotation angle detection component 10 and controls the movement position of the drive component 4 through the rotation angle. The rotation angle detection component 10 can detect the rotation angle of the standing plate 7. When the body turns or jumps 180 degrees, one foot may still be on the original fan-shaped plate, and the other foot is on the standing plate. However, the positions of the two feet have been swapped. If the calculation is only based on the position of the fan-shaped plate, the support frame will not move because the fan-shaped plate has not changed. Therefore, the rotation angle detection component 10 can solve this problem. When the body rotates 180 degrees, the microprocessor drives the support frame to rotate 180 degrees.

[0041] For details, please refer to the following: Figure 6 The rotation angle detection component 10 includes a light source emitter 100 and multiple light source receivers 101. The light source emitter 100 is fixed to the side wall of the station plate 7. The light source emitted by the light source emitter 100 is horizontal. The multiple light source receivers 101 are arranged at equal intervals along the inner wall of the annular plate 5. The multiple light source receivers 101 are arranged in a ring around the outer periphery of the station plate 7. The light source emitter 100 and the light source receivers 101 are at the same height. The light source receivers 101 receive the light source emitted by the light source emitter 100. The microprocessor is signal-connected to the light source receivers 101. After the microprocessor receives the signal emitted by a certain light source receiver 101 that has received the light source, it calculates the rotation angle of the station plate 7 based on the location of the light source receiver 101.

[0042] By determining the position of the light source receiver that can receive the light emitted by the light source transmitter, the rotation angle of the station plate can be determined.

[0043] Optionally, the side wall of the station plate 7 has a placement groove 70, in which the light source emitter 100 is fixed. The inner wall of the annular plate 5 is provided with multiple fixing grooves 50 at equal intervals, in which the light source receiver 101 is fixed. The placement groove 70 and the fixing groove 5 can hide the light source emitter and the light source receiver, avoiding damage to the relevant components caused by bumps and affecting normal use, and further ensuring the normal operation of both.

[0044] Optionally, the support frame 3 is a height-adjustable telescopic structure, which can be adjusted in time.

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

Claims

1. A photographic device for martial arts action analysis, characterized by, The utility model relates to a kind of training device for taijiquan, including: Multiple independent fan-shaped blocks (1), annular track (2), support frame (3) for supporting photographic equipment, drive assembly (4) and microprocessor; Multiple the fan-shaped blocks (1) are spliced into annular plate (5), each described fan-shaped block (1) is provided with a pressure sensor (6), the pressure sensor (6) is used to detect the feet of the practitioner respectively step on certain two described fan-shaped blocks (1); Described annular track (2) is fixed on the annular plate (5), the annular track (2) is concentric with the annular plate (5), the lower end of the support frame (3) is slidably fitted in the annular track (2), the drive assembly (4) is connected to the support frame (3), for driving the support frame (3) along the annular track (2) sliding; The microprocessor is signal-connected with the drive assembly (4) and pressure sensor (6) respectively, when the microprocessor receives the pressure detected by two pressure sensors (6), the specific position of the two fan-shaped blocks (1) where the two pressure sensors (6) are located is obtained, and the included angle of the two fan-shaped blocks (1) is calculated, the support frame (3) is moved to the middle position of the included angle by controlling the drive assembly (4), and the middle position is the target position; The center of the annular plate (5) is provided with a standing plate (7), and the annular plate (5) is annularly arranged outside the standing plate (7); when the practitioner trains, first, both feet stand on the standing plate (7) and face the direction of the photographic equipment, which is the initial position, then in the process of playing taijiquan, when the first foot position changes, only the moving foot moves to the corresponding fan-shaped block (1), then the pressure sensor (6) on the fan-shaped block (1) detects the pressure, the microprocessor calculates the middle angle between the fan-shaped block (1) and the initial position, and controls the drive assembly (4) to drive the support frame (3) to move to the position, and the middle position is the target position; The bottom of the annular plate (5) and the standing plate (7) is provided with a bearing seat (8), the standing plate (7) is rotatably connected above the bearing seat (8) through a rotating shaft (9), and the annular plate (5) is fixed to the upper end face of the bearing seat (8); when only one foot moves out of the standing plate (7), the other foot is on the standing plate (7), if the body rotates at this time, the standing plate (7) can rotate with the foot; The standing plate (7) is provided with a rotating angle detection assembly (10), the rotating angle detection assembly (10) is used to detect the rotating angle of the standing plate (7) relative to the initial position, the rotating angle detection assembly (10) is connected with the microprocessor, the microprocessor receives the rotating angle detected by the rotating angle detection assembly (10), and the moving position of the drive assembly (4) is controlled by the rotating angle. When the turn or jump is 180 degrees, then one foot is still in the original sector block (1), and the other foot is on the standing plate (7), but at this time the positions of the two feet standing are interchanged, at this time if only according to the position of the sector block (1) is calculated, since the sector block (1) does not change, the support frame (3) will not move, and the rotating angle detection assembly (10) can solve this problem, when rotating 180 degrees, the microprocessor drives the support frame (3) to rotate 180 degrees.

2. The photographic apparatus for martial arts action analysis according to claim 1, wherein The driving assembly (4) comprises: a walking wheel (40), a permanent magnet (41) and a plurality of electromagnets (42); The walking wheel (40) is rotatably connected to the lower end of the support frame (3) through a wheel frame (43), the permanent magnet (41) is fixed to the outer periphery of the walking wheel (40), and a plurality of electromagnets (42) are continuously fixed on the annular track (2) along the extension direction thereof, each electromagnet (42) is connected with a power supply and a microprocessor through a relay; The microprocessor controls the number and position of the energized electromagnets (42) to control the walking wheel (40) to move to the target position.

3. The photographic apparatus for martial arts action analysis according to claim 1, wherein The rotating angle detection assembly (10) comprises: a light source emitter (100) and a plurality of light source receivers (101), the light source emitter (100) is fixed on the side wall of the standing plate (7), the light source emitted by the light source emitter (100) is horizontal, a plurality of light source receivers (101) are arranged at equal intervals along the inner wall of the annular plate (5), a plurality of light source receivers (101) are annularly arranged around the outer periphery of the standing plate (7), the light source emitter (100) and the light source receiver (101) are at the same height, and the light source receiver (101) receives the light source emitted by the light source emitter (100); The microprocessor is signal connected with the light source receiver (101), and after the microprocessor receives the signal emitted by the light source receiver (101) which receives the light source, the rotating angle of the standing plate (7) is calculated through the position of the light source receiver (101).

4. The photographic apparatus for martial arts action analysis according to claim 3, wherein The side wall of the standing plate (7) has a placing groove (70), the light source emitter (100) is fixed in the placing groove (70), and a plurality of fixing grooves (50) are formed at equal intervals in the inner wall of the annular plate (5), and the light source receiver (101) is fixed in the fixing groove (50).

5. The photographic apparatus for martial art action analysis according to claim 1, wherein The support frame (3) is a telescopic structure with adjustable height.

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