Multi-camera linkage sports action standard degree evaluation device

Abstract

The present application relates to a kind of multi-camera linkage sports action standard degree evaluation device, including cage, annular camera component, top camera component and control unit;The cage is the structure of enclosure with mouth facing down, and its bottom is equipped with moving wheel group, and inside is formed evaluation space;The inner circumferential wall of cage is arranged with at least two closed annular tracks along vertical direction, and at least one set of annular camera component is slidably installed on each closed annular track, and annular camera component can move around along closed annular track, and sports action picture in action evaluation space can be collected from different height and circumferential angle;Top camera component is installed on the inner top of cage, for shooting and collecting sports action picture from above downwards.Sports action picture in action evaluation space can be synchronously shot and collected from circumferential side and inner top, and it can also be collected through different height and circumferential angle on circumferential side, improve the completeness of collection, and further improve the role of evaluation accuracy of the sports action standard degree evaluation device.

Description

Technical Field

[0001] This invention relates to a multi-camera linkage sports movement standardization evaluation device, and belongs to the technical field of sports intelligent movement recognition and evaluation equipment. Background Technology

[0002] With the rapid development of smart sports and intelligent physical fitness testing industries, automatic sports movement evaluation equipment relying on machine vision and image recognition technology has gradually replaced traditional manual evaluation methods, effectively solving the problems of strong subjectivity, low efficiency and large errors in manual evaluation. Therefore, it is necessary to use automatic sports movement standard evaluation devices to automatically evaluate the standard of users' sports movements.

[0003] Traditional automatic assessment devices for sports movement accuracy often employ a fixed multi-camera setup. They capture images of athletes' movements from multiple angles and combine this with image algorithms to score the accuracy of their movements. However, since the cameras in this method are all fixedly installed, the shooting angle and range cannot be adjusted to follow the athlete's dynamic movement trajectory. For sports with high dynamic range and wide activity, such as running, long jump, ball games, and continuous gymnastic movements, problems such as image shift, missing frames of key movements, and missing partial limb data are very likely to occur, resulting in incomplete movement data collection and distorted assessment results.

[0004] By combining the above problems, we can see that existing automatic sports movement standardization evaluation devices have difficulty avoiding the problems mentioned above when in use. Even if they can solve the problems, they require the assistance of external tools, which makes it impossible to achieve the desired effect. Therefore, we propose a multi-camera linkage sports movement standardization evaluation device. Summary of the Invention

[0005] In view of the shortcomings of the prior art, the technical problem to be solved by the present invention is to provide a multi-camera linkage sports movement standard measurement device to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the technical solution of the present invention is: a multi-camera linkage sports movement standard measurement device, including a cage, a ring camera assembly, a top camera assembly, and a control unit; The cage is an enclosed structure with the opening facing downwards. It is equipped with a set of movable wheels at the bottom and forms a motion assessment space for the test subject. At least two closed circular tracks are arranged vertically on the inner circumferential sidewall of the cage. At least one set of circular camera components is slidably installed on each closed circular track. The circular camera components can move around along the closed circular track to capture sports motion images in the motion assessment space from different heights and circumferential angles. The top camera assembly is installed on the inner top of the cage and is used to capture sports action footage from above. The control unit is electrically connected to the ring camera assembly and the top camera assembly respectively, and is used to receive multi-view motion image data and perform sports motion standardization analysis and evaluation.

[0007] Preferably, the cage is assembled from four identical arc-shaped cage units, and the adjacent arc-shaped cage units are detachably connected, allowing them to be disassembled, stored, or combined to form a complete enclosure structure; correspondingly, each of the closed ring tracks is divided into four unit track segments, and the four unit track segments are respectively fixed to the inner peripheral sidewalls of the four arc-shaped cage units.

[0008] Preferably, a telescopic connecting assembly is provided between the tops of two adjacent arc-shaped cover units, and a locking track rod is provided at the lower part of the telescopic connecting assembly corresponding to the position of each closed ring track; the telescopic connecting assembly is used to adjust the distance between two adjacent arc-shaped cover units, the locking track rod is locked and fixed to two adjacent arc-shaped cover units, and the rod body of the locking track rod has a connecting track section, which together with the unit track section of the inner side wall of the arc-shaped cover unit after assembly to form a continuous closed ring track.

[0009] Preferably, the telescopic connection assembly includes a telescopic groove, a telescopic rod, and a set screw; the telescopic groove is formed on the top end face of the arc-shaped cover unit, and the two ends of the telescopic rod are respectively inserted into the telescopic grooves of two adjacent arc-shaped cover units, one end of which can slide along the telescopic groove, and the other end is abutted by the set screw; the set screw is threaded to the arc-shaped cover unit, and after tightening, the rear end abuts against the surface of the telescopic rod to lock the position of the telescopic rod.

[0010] Preferably, the unit track section on the inner side wall of the arc-shaped cover unit has an L-shaped slot at its docking end; the two ends of the locking track rod are respectively provided with arrow buckles, and the arrow buckles are inserted into the L-shaped slots on the corresponding sides during assembly, so as to realize the quick docking and fixing of the locking track rod and the arc-shaped cover unit.

[0011] Preferably, the inner wall of the closed annular track is fixed with a continuous transmission toothed belt; the annular camera assembly includes a sliding seat, a walking drive motor and a motion acquisition camera; the sliding seat is embedded in the closed annular track, the walking drive motor is fixed inside the sliding seat, and its output end is fixed with a drive gear, the drive gear meshes with the transmission toothed belt, driving the sliding seat and the motion acquisition camera to move around the closed annular track.

[0012] Preferably, the motion capture camera is mounted on the side of the sliding base facing the motion assessment space via an angle adjustment component; the angle adjustment component includes a horizontal adjustment motor and a pitch adjustment motor, the horizontal adjustment motor is used to drive the motion capture camera to rotate horizontally to adjust the horizontal shooting angle, and the pitch adjustment motor is used to drive the motion capture camera to swing up and down to adjust the pitch shooting angle.

[0013] Preferably, the top camera assembly includes an auxiliary camera fixedly connected to the inner top of each arc-shaped housing unit.

[0014] Preferably, the control unit is a controller, which is fixedly connected to the top mounting bracket, which is fixedly connected to the inner top center of the cage; all walking drive motors, horizontal adjustment motors and pitch adjustment motors are electrically connected to the controller, which uniformly schedules the movement position and shooting angle of the camera; a speaker is also fixedly connected to the bottom surface of the top mounting bracket, which is electrically connected to the controller and is used to broadcast the evaluation results and operation prompts.

[0015] Preferably, the movable wheel set includes four support legs and four omnidirectional wheels with brakes; the four support legs are respectively vertically fixed to the bottom of the four arc-shaped cover units, and each support leg is equipped with an omnidirectional wheel at its bottom end for driving the overall movement and position adjustment of the cover cage.

[0016] Compared with the prior art, the present invention has the following beneficial effects: the multi-camera linkage sports movement standard measurement device can simultaneously capture sports movement images in the movement measurement space from the periphery and the inner top. Moreover, it can also capture images from different heights and circumferential angles on the periphery, thereby improving the completeness of the capture and further improving the measurement accuracy of the sports movement standard measurement device.

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0018] Figure 1 This is a schematic diagram illustrating the structure of an embodiment of the present invention.

[0019] Figure 2 This is a schematic diagram of the construction of four arc-shaped cover units in an embodiment of the present invention.

[0020] Figure 3 This is a schematic diagram of the top camera component in an embodiment of the present invention.

[0021] Figure 4 This is a schematic diagram of the structure of the snap-fit ​​track rod in an embodiment of the present invention.

[0022] Figure 5This is a schematic diagram of the structure of the ring-shaped camera assembly in an embodiment of the present invention. Figure 1 .

[0023] Figure 6 This is a schematic diagram of the structure of the ring-shaped camera assembly in an embodiment of the present invention. Figure 2 .

[0024] In the diagram: 1. Cage; 2. Closed circular track; 3. Circular camera assembly; 4. Top camera assembly; 5. Arc-shaped cover unit; 6. Unit track section; 7. Snap-fit ​​track rod; 8. Connecting track section; 9. Telescopic groove; 10. Telescopic rod; 11. Set screw; 12. Universal wheel; 13. L-shaped slot; 14. Arrow buckle; 15. Transmission toothed belt; 16. Sliding seat; 17. Motion acquisition camera; 18. Drive gear; 19. Mounting block; 20. Horizontal adjustment motor; 21. Rotary disc; 22. Pitch adjustment motor; 23. Rotating frame; 24. Controller; 25. Top mounting frame; 26. Speaker; 27. L-shaped reinforcement frame. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0026] It should be noted that the following detailed descriptions are exemplary and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0027] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0028] like Figures 1-6 As shown, this embodiment provides a multi-camera linkage sports movement standardity evaluation device, including a cage 1, a ring camera assembly, a top camera assembly, and a control unit; The cage is an enclosed structure with the opening facing downwards. It is equipped with a set of movable wheels at the bottom and forms a motion assessment space for the test subject. At least two closed circular tracks 2 are arranged vertically on the inner circumferential sidewall of the cage. At least one set of circular camera components 3 is slidably installed on each closed circular track. The circular camera components can move around along the closed circular track to capture sports motion images in the motion assessment space from different heights and circumferential angles. The top camera assembly 4 is installed on the inner top of the cage and is used to capture sports action footage from above. The control unit is electrically connected to the ring camera assembly and the top camera assembly respectively, and is used to receive multi-view motion image data and perform sports motion standardization analysis and evaluation.

[0029] In this embodiment of the invention, the cage is assembled from four identical arc-shaped cage units 5. The adjacent arc-shaped cage units are detachably connected and can be disassembled, stored, or combined to form a complete enclosure structure. Correspondingly, each of the closed ring tracks is divided into four unit track segments 6, which are respectively fixed to the inner peripheral sidewalls of the four arc-shaped cage units.

[0030] In this embodiment of the invention, a telescopic connecting component is provided between the tops of two adjacent arc-shaped cover units. The lower part of the telescopic connecting component is provided with a locking track rod 7 corresponding to the position of each closed ring track. The telescopic connecting component is used to adjust the distance between two adjacent arc-shaped cover units. The locking track rod is locked and fixed to two adjacent arc-shaped cover units, and the rod body of the locking track rod has a connecting track section 8. After assembly, it forms a continuous closed ring track together with the unit track section of the inner side wall of the arc-shaped cover unit.

[0031] In this embodiment of the invention, the telescopic connection assembly includes a telescopic groove 9, a telescopic rod 10, and a set screw 11. The telescopic groove is formed on the top end face of the arc-shaped cover unit. Both ends of the telescopic rod are inserted into the telescopic grooves of two adjacent arc-shaped cover units, with one end sliding along the groove and the other end secured by the set screw. The set screw is threaded into the arc-shaped cover unit, and when tightened, its end abuts against the surface of the telescopic rod to lock its position. A buffer pad is fixed to the end of the set screw to increase the force-bearing area when the set screw is tightened.

[0032] In this embodiment of the invention, the unit track section on the inner side wall of the arc-shaped cover unit has an L-shaped slot 13 at its docking end; the two ends of the locking track rod are respectively provided with arrow buckles 14. During assembly, the arrow buckles are inserted into the L-shaped slots on the corresponding sides to realize the quick docking and fixing of the locking track rod and the arc-shaped cover unit.

[0033] In this embodiment of the invention, the inner wall of the closed annular track is fixed with a continuous transmission toothed belt 15; the annular camera assembly includes a sliding seat 16, a walking drive motor and a motion acquisition camera 17; the sliding seat is embedded in the closed annular track, the walking drive motor is fixed inside the sliding seat, and its output end is fixed with a drive gear 18, which meshes with the transmission toothed belt to drive the sliding seat and the motion acquisition camera to move around the closed annular track.

[0034] In this embodiment of the invention, the motion capture camera is mounted on the side of the sliding seat facing the motion assessment space via an angle adjustment component, further improving the accuracy of capturing and filming the user's sports movements; the angle adjustment component includes a horizontal adjustment motor and a pitch adjustment motor, the horizontal adjustment motor is used to drive the motion capture camera to rotate horizontally to adjust the horizontal shooting angle, and the pitch adjustment motor is used to drive the motion capture camera to swing up and down to adjust the pitch shooting angle.

[0035] Each of the sliding seats is fixedly connected to a mounting block 19 on one side. The horizontal adjustment motors 20 are all mounted on the mounting blocks. The output ends of the horizontal adjustment motors are all fixedly connected to a rotating disk 21. The pitch adjustment motors 22 are all mounted on the rotating disk. The output ends of the pitch adjustment motors are all fixedly connected to a rotating frame 23. Each rotating frame is fixedly connected to a motion acquisition camera.

[0036] In this embodiment of the invention, the top camera assembly includes an auxiliary camera fixedly connected to the inner top of each arc-shaped housing unit.

[0037] In this embodiment of the invention, the control unit is a controller 24, which is fixedly connected to the top mounting bracket 25, which is fixedly connected to the middle of the inner top of the cage. All walking drive motors, horizontal adjustment motors and pitch adjustment motors are electrically connected to the controller, which uniformly schedules the movement position and shooting angle of the camera. A speaker 26 is also fixedly connected to the bottom surface of the top mounting bracket, which is electrically connected to the controller and is used to broadcast the evaluation results and operation prompts.

[0038] In this embodiment of the invention, an L-shaped reinforcing bracket 27 is fixedly installed at the corner of the top surface of each arc-shaped cover unit to facilitate the bolt and nut tightening of the top mounting bracket.

[0039] In this embodiment of the invention, the movable wheel set includes four support legs and four universal wheels 12 with brakes; the four support legs are respectively vertically fixed to the bottom of the four arc-shaped cover units, and a universal wheel is installed at the bottom of each support leg to drive the overall movement and position adjustment of the cover cage.

[0040] In this embodiment of the invention, the multi-camera linked sports movement standardization assessment device works / is used as follows: 1. Assembly: Four arc-shaped enclosure units were placed on a flat test site in a circular pattern, with the bottom casters kept movable, roughly enclosing the internal motion evaluation space; it was confirmed that the end face of the telescopic groove and the docking end of the track of each unit corresponded one by one, with no directional misalignment; Take the telescopic rod and insert both ends into the telescopic grooves at the top of the two adjacent arc-shaped cover units respectively; simultaneously adjust the insertion depth of all telescopic rods, adjust the spacing between adjacent units to the target size, and after confirming that the overall enclosure shape is regular, tighten the set screws on one side of each telescopic rod to press against the surface of one side of the telescopic rod. For each layer of closed loop track, take the locking track rod, align the arrow buckles at both ends of the rod with the L-shaped slots at the docking ends of the arc-shaped cover units on both sides, and push it in to lock into place; complete the installation of locking track rods for all height layers in sequence to ensure smooth connection between unit track sections and connecting track sections, and continuous and misaligned inner wall drive toothed belts; Insert the sliding seat of the ring camera assembly into the closed ring track and confirm that the drive gear and the transmission belt on the inner wall of the track are properly engaged; manually push the sliding seat around the track once to check that there is no jamming at the track joint and that the sliding is smooth. Complete the installation of the camera assembly on all closed ring tracks in the same way. Finally, install the top mounting bracket, controller, top camera assembly, and speaker. Connect the wires to the parts that require electrical connections, and then power on and test until normal operation is achieved.

[0041] 2. Assessment: The omnidirectional wheel brakes guide the subject into the motion assessment space at the center of the cage. Operators can fine-tune the camera angles to ensure the subject's entire body is within the field of view. This multi-camera linked sports motion standardization assessment device can simultaneously capture images of sports movements within the assessment space from the periphery and the inner top. Furthermore, it can capture images from different heights and angles (circumferential, horizontal, and pitch) on the periphery, improving the completeness of the data acquisition and further enhancing the accuracy of the assessment. The controller receives the multi-view motion image data, performs motion standardization analysis and assessment, and then broadcasts the results through a speaker.

[0042] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the protection scope of the present invention.

Claims

1. A multi-camera linkage sports movement standardization evaluation device, characterized in that: Includes a cage, a ring-shaped camera assembly, a top camera assembly, and a control unit; The cage is an enclosed structure with the opening facing downwards. It is equipped with a set of movable wheels at the bottom and forms a motion assessment space for the test subject. At least two closed circular tracks are arranged vertically on the inner circumferential sidewall of the cage. At least one set of circular camera components is slidably installed on each closed circular track. The circular camera components can move around along the closed circular track to capture sports motion images in the motion assessment space from different heights and circumferential angles. The top camera assembly is installed on the inner top of the cage and is used to capture sports action footage from above. The control unit is electrically connected to the ring camera assembly and the top camera assembly respectively, and is used to receive multi-view motion image data and perform sports motion standardization analysis and evaluation.

2. The multi-camera linkage sports movement standardization evaluation device according to claim 1, characterized in that: The cage is assembled from four identical arc-shaped enclosure units. Adjacent arc-shaped enclosure units are detachably connected and can be disassembled, stored, or combined to form a complete enclosure structure. Correspondingly, each closed ring track is divided into four unit track segments, which are fixed to the inner circumferential sidewalls of the four arc-shaped enclosure units.

3. The multi-camera linkage sports movement standardization evaluation device according to claim 2, characterized in that: A telescopic connecting assembly is provided between the tops of two adjacent arc-shaped cover units. The lower part of the telescopic connecting assembly is provided with a locking rail rod corresponding to the position of each closed loop track. The telescopic connecting assembly is used to adjust the distance between two adjacent arc-shaped cover units. The locking rail rod is locked and fixed to the two adjacent arc-shaped cover units. The rod body of the locking rail rod has a connecting rail section. After assembly, it forms a continuous closed loop track together with the unit rail section on the inner side wall of the arc-shaped cover unit.

4. The multi-camera linkage sports movement standardization evaluation device according to claim 3, characterized in that: The telescopic connection assembly includes a telescopic groove, a telescopic rod, and a set screw. The telescopic groove is formed on the top end face of the arc-shaped cover unit. The two ends of the telescopic rod are respectively inserted into the telescopic grooves of two adjacent arc-shaped cover units. One end of the rod can slide along the telescopic groove, and the other end is tightened by the set screw. The set screw is threaded to the arc-shaped cover unit. After tightening, the rear end abuts against the surface of the telescopic rod to lock the position of the telescopic rod.

5. The multi-camera linkage sports movement standardization evaluation device according to claim 3, characterized in that: The unit track section on the inner side wall of the arc-shaped cover unit has an L-shaped slot at its docking end; the two ends of the locking track rod are respectively provided with arrow buckles. During assembly, the arrow buckles are inserted into the L-shaped slots on the corresponding sides to realize the quick docking and fixing of the locking track rod and the arc-shaped cover unit.

6. The multi-camera linkage sports movement standardization evaluation device according to claim 1, characterized in that: The inner wall of the closed circular track is fixed with a continuous transmission toothed belt; the circular camera assembly includes a sliding seat, a walking drive motor and a motion acquisition camera; the sliding seat is embedded in the closed circular track, the walking drive motor is fixed inside the sliding seat, and its output end is fixed with a drive gear, which meshes with the transmission toothed belt to drive the sliding seat and the motion acquisition camera to move around the closed circular track.

7. The multi-camera linkage sports movement standardization evaluation device according to claim 6, characterized in that: The motion capture camera is mounted on the side of the sliding base facing the motion assessment space via an angle adjustment component. The angle adjustment component includes a horizontal adjustment motor and a pitch adjustment motor. The horizontal adjustment motor is used to drive the motion capture camera to rotate horizontally to adjust the horizontal shooting angle, and the pitch adjustment motor is used to drive the motion capture camera to swing up and down to adjust the pitch shooting angle.

8. The multi-camera linkage sports movement standardization evaluation device according to claim 2, characterized in that: The top camera assembly includes an auxiliary camera fixedly connected to the inner top of each arc-shaped housing unit.

9. The multi-camera linkage sports movement standardization evaluation device according to claim 7, characterized in that: The control unit is a controller, which is fixedly connected to the top mounting bracket, which is fixedly connected to the middle of the inner top of the cage. All walking drive motors, horizontal adjustment motors, and pitch adjustment motors are electrically connected to the controller, which uniformly controls the movement position and shooting angle of the camera. A speaker is also fixedly connected to the bottom surface of the top mounting bracket, which is electrically connected to the controller and is used to broadcast the evaluation results and operation prompts.

10. The multi-camera linkage sports movement standardization evaluation device according to claim 2, characterized in that: The movable wheel set includes four support legs and four omnidirectional wheels with brakes; the four support legs are vertically fixed to the bottom of the four arc-shaped cover units, and each support leg is equipped with an omnidirectional wheel at its bottom end, which is used to drive the overall movement and position adjustment of the cover cage.

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