A kinematic parameter detection device for outdoor high jump

Abstract

The utility model is a kinematic parameter detection device for outdoor high jump, including a tracking camera, a take-off area camera, a data processor, a PC, a display screen, a force measuring platform, a capacitive pressure sensor and an inductive proximity sensor. The force measuring platform is installed in the sports field of the take-off area, the capacitive pressure sensor is wrapped on the high jump crossbar, and the inductive proximity sensor is installed on both sides of the high jump crossbar shelf, and the inductive proximity sensor can move up and down along the height direction of the high jump crossbar shelf; the force measuring platform, the capacitive pressure sensor, the inductive proximity sensor, the tracking camera, and the take-off area camera are all connected to the PC through a hub and a data processor, and the PC is connected to the display screen at the same time. It meets the sports requirements, real-time display, and can obtain sports morphology and athlete mechanical information, which is conducive to establishing a set of data testing and analysis systems to obtain complete sports information, assist training and make professional suggestions.

Description

Technical Field

[0001] The utility model relates to the technical fields of sports scientific research and biomechanics engineering, and in particular is a kinematic parameter detection device for outdoor high jump. Background Art

[0002] High jump is one of the field events in track and field sports. It is a sport in which the human body jumps over a high obstacle through a series of movements including running up, taking off, jumping into the air, and landing. There are many techniques for high jump, such as leaping, scissors, rolling, prone, and back jump. Due to different types of techniques, athletes have different methods for completing the running up, taking off, jumping over the pole, and landing.

[0003] At present, the Chinese invention patent with the public number CN201910375629.7 discloses a high jump training auxiliary equipment and auxiliary training method, including: tracking camera, pole camera, data processing host and display screen; the high jump process of the athlete is filmed by the tracking camera and pole camera, and the obtained data information is processed by the data processing host and displayed on the display screen after delay. It can run automatically, without manual intervention, and automatically replay it on site for the athlete to watch, but it still has some visual blind spots, and can only obtain the movement form data of the athlete during the movement, and cannot obtain the athlete's three-dimensional force data, and cannot obtain more accurate and precise data. In order to improve the high jump ability of athletes, special high jump training equipment is needed to train the movement so as to improve the high jump ability of athletes.

[0004] In view of this, it is necessary to develop a detection device for high jump training that can accurately monitor the athlete's movement form, the athlete's vector contact force and the accuracy of the bar crossing, which is conducive to all-round and no blind spots, real-time display, auxiliary training and more professional suggestions. Utility Model Content

[0005] In view of the deficiencies in the prior art, the technical problem that the utility model intends to solve is to provide a kinematic parameter detection device for outdoor high jump that meets sports requirements, displays in real time, and can obtain sports forms and athlete mechanical information, which is conducive to establishing a data testing and analysis system to obtain complete sports information, assist in training and provide professional suggestions.

[0006] The utility model solves the technical problem with the following technical solutions:

[0007] A kinematic parameter detection device for outdoor high jump, comprising a tracking camera, a take-off area camera, a data processor, a PC and a display screen, the detection device also comprising a force measuring platform, a capacitive pressure sensor and an inductive proximity sensor, the force measuring platform is installed on the sports field of the take-off area, the capacitive pressure sensor is wrapped on the high jump crossbar, and the inductive proximity sensors are installed on both sides of the high jump crossbar shelf, and the inductive proximity sensors can move up and down along the height direction of the high jump crossbar shelf;

[0008] The force measuring platform, the capacitive pressure sensor, the inductive proximity sensor, the tracking camera, and the take-off zone camera are all connected to the PC through a hub and a data processor, and the PC is also connected to the display screen.

[0009] The force measuring platform is composed of a number of force measuring plates spliced ​​together to fully cover the entire take-off area;

[0010] The force plate includes a tempered glass cover, a coupling, a fixing stud, a threaded steel ball, a steel ball fixing sleeve, a force sensor, a mounting frame, and a support seat. The mounting frame is fixed on the excavated foundation of the sports field in the take-off area, and a number of grooves for fixing the force sensor are reserved on the mounting frame.

[0011] The coupling is fixed on the tempered glass cover plate, the top end of the fixing stud is fixed to the coupling, and the bottom end of the fixing stud is connected to the threaded hole steel ball 8 through a thread;

[0012] The threaded hole steel ball 8 is fixed by a steel ball fixing sleeve and a support seat, and the space enclosed by the steel ball fixing sleeve and the support seat can accommodate the threaded hole steel ball 8; the lower part of the support seat 10 is fixed to the force sensor 11, and the lower part of the force sensor 11 is fixed in the reserved groove of the mounting frame 2;

[0013] A take-off area camera 3 is fixedly placed under the tempered glass cover plate 1;

[0014] Two tracking cameras 15 are placed on both sides of the force measuring platform.

[0015] Further, the force measuring platform is composed of 27 800x600mm force measuring plates;

[0016] The tracking camera 15 is used to track and record the athlete's movement postures including take-off, crossing the bar, and falling;

[0017] The take-off area camera 3 is a panoramic camera, which is used to take close-up shots of athletes' blind spots when crossing the pole;

[0018] The capacitive pressure sensor is used to detect whether the athlete touches the crossbar.

[0019] Furthermore, the capacitive pressure sensor is a flexible pressure sensor array, and the overall size of the capacitive pressure sensor is 4400*125.6 mm.

[0020] Furthermore, the display screen is used to play back the image information of the athlete's entire jumping process and close-up process of passing the pole in real time or with a delay, and to test the athlete's force and resultant force waveform images in the horizontal, vertical and longitudinal directions, and to display a red warning pop-up window and related professional analysis and suggestions.

[0021] Compared with the prior art, the beneficial effects of the utility model are:

[0022] 1. The utility model is a kinematic parameter detection device for outdoor high jump, which is composed of a force measuring platform, a tracking camera, a take-off area camera, and a capacitive pressure sensor and an inductive proximity sensor, so as to realize the accurate collection and acquisition of the sports posture and kinematic data of athletes jumping over high obstacles in the series of actions of taking off, flying and landing in the take-off area.

[0023] 2. In the utility model, the force measuring platform is used to obtain the vector contact force of the athlete, the tracking camera and the take-off area camera are used to obtain the athlete's movement posture, the capacitive pressure sensor is used to determine whether the athlete touches the crossbar, and the inductive proximity sensor is used to determine whether the crossbar falls. Through these, high-precision real-time motion data can be collected. After the data is obtained and processed by the PC, it is convenient to provide training guidance for athletes and make reference suggestions. The online display of data on the PC and the display screen can warn athletes in time, and replay can also be performed after the game. It supports real-time online or offline image display data analysis. Based on a large amount of data, a data test and analysis system can be established to obtain complete motion information, assist training and make professional suggestions.

[0024] 3. The present invention uses a tracking camera and a pole camera to shoot the athlete's high jump process, and uses a data processing host to process the obtained data information and then display it on a display screen with a delayed delay. It can run fully automatically, without human intervention, and automatically play it back on site for athletes to watch; using this online video real-time feedback training method can greatly improve the training efficiency of high jump sports, and has very important practical value.

[0025] The concept, specific structure and technical effects of the present invention will be further described below in conjunction with the accompanying drawings to fully understand the purpose, characteristics and effects of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the overall structure of a kinematic parameter detection device for outdoor high jump according to the utility model;

[0027] Figure 2This is a schematic diagram of the installation structure of the force plate and the camera in the take-off area of ​​the utility model;

[0028] Figure 3 It is a schematic diagram of the top view of the force plate installation in the utility model;

[0029] Figure 4 for Figure 3 Schematic diagram of the AA section structure;

[0030] Figure 5 for Figure 4 The enlarged structural diagram at B in the middle;

[0031] In the figure: 1. tempered glass cover, 2. mounting frame, 3. take-off area camera, 4. upper sleeve of coupling, 5. lower sleeve of coupling, 6. countersunk screw, 7. fixing stud, 8. threaded hole steel ball, 9. steel ball fixing sleeve, 10 supporting seat, 11. force sensor, 12 sponge bag, 13. inductive proximity sensor, 14. capacitive pressure sensor, 15. tracking camera. DETAILED DESCRIPTION

[0032] The specific embodiments of the present invention are given below. The specific embodiments are only used to further illustrate the present invention in detail and do not limit the protection scope of the claims of the present invention.

[0033] See also Figure 1-5 The utility model provides a technical solution: a kinematic parameter detection device for outdoor high jump, including a force measuring platform, tracking cameras 15 arranged on both sides of the force measuring platform, a high jump frame (including a cross bar and a cross bar shelf) located in front of the force measuring platform, a sponge bag 12 located in front of the high jump frame, the force measuring platform is installed in the sports field of the take-off area, a capacitive pressure sensor 14 is wrapped on the high jump cross bar, and an inductive proximity sensor 13 is installed on both sides of the high jump cross bar shelf.

[0034] The force measuring platform is composed of a number of force plates spliced ​​together to fully cover the entire take-off area; the force measuring platform includes a tempered glass cover 1, a mounting frame 2, a coupling upper sleeve 4, a coupling lower sleeve 5, a countersunk screw 6, a fixing stud 7, a threaded hole steel ball 8, a steel ball fixing sleeve 9, a support seat 10, and a force sensor 11; a 95mm deep groove is dug out of the sports field in the take-off area, and the mounting frame 2 is permanently bonded to the foundation with epoxy grouting, and four grooves for fixing force sensors are reserved on the mounting frame; the number of force sensors on each force plate is four.

[0035] The above-mentioned coupling upper sleeve 4 and coupling lower sleeve 5 constitute a coupling. A groove is dug on the upper and lower surfaces of the tempered glass cover plate, and the coupling upper sleeve 4 and coupling lower sleeve 5 are installed respectively. The coupling upper sleeve 4 and coupling lower sleeve 5 are fixed to the tempered glass cover plate 1 by countersunk screws 6 to achieve the fixation of the coupling and the tempered glass cover plate.

[0036] The top end of the fixing stud 7 is connected to the coupling, and the bottom end is connected to the threaded hole steel ball 8 through a thread. The threaded hole steel ball is fixed by a steel ball fixing sleeve 9 and a support seat 10. The lower part of the support seat is fixed to the force sensor. The support seat 10 is fixed to the force sensor 11 by screws. The force sensor 11 is fixed in the reserved groove position of the mounting frame 2 to realize the fixation of a single side force plate.

[0037] A take-off area camera 3 is placed at a fixed position under the tempered glass cover plate 1. In this embodiment, the take-off area camera 3 is installed on the lower surface of the tempered glass cover plate before the two force sensors. The high jump crossbar is fully wrapped with 1324 individually calibrated small capacitive pressure sensors to form the entire capacitive pressure sensor, which covers the high jump crossbar. An inductive proximity sensor 13 is movably placed on each side of the high jump crossbar shelf, and the inductive proximity sensor can move up and down along the height direction of the high jump crossbar shelf.

[0038] The tracking camera 15, the take-off area camera 3, the capacitive pressure sensor 14, the inductive proximity sensor 13 and the force plate force sensor 11 are all transmitted to the data processor through the hub, and the data processor is connected to the PC, which receives the data and images, and uses the relevant software to perform auxiliary training and make professional suggestions based on a large number of database analysis templates and parameter index systems. Finally, the display screen plays in real time or replays the image information of the athlete's jump and the close-up process of the pole, the athlete's vector contact force waveform, the red warning pop-up window and related professional analysis and suggestions. After using the equipment, when storing it, except for the installation frame 2, other equipment can be disassembled, and the force plate can be used in multiple venues, which is convenient for multiple use.

[0039] Working principle: When using the kinematic parameter detection device for outdoor high jump, glue the mounting frame to the foundation, build the force plate, place the tracking camera, sponge bag, and high jump stand, and correctly connect each data cable to the data processor through the hub to transmit it to the PC. The PC receives the data and images, and displays them on the display screen after being processed by existing technology.

[0040] The force measuring platform described in this embodiment is composed of 27 800x600mm force measuring plates, which fully cover the entire take-off area. The use of threaded steel balls and steel ball fixing sleeves can play a leveling role, ensuring that all the spliced ​​force measuring plates can be on the same plane.

[0041] The force plate is connected to the data processor and transmitted to the PC, which can test the athlete's force components and combined forces in the horizontal, vertical and longitudinal directions in the take-off area, pressure maps, pressure center trajectory, maximum pressure and other data.

[0042] The tracking cameras are placed at suitable positions on both sides of the high jump area, and can track and record the athletes' jumping, crossing the bar, falling and other sports postures in 360 degrees without blind spots.

[0043] The take-off area camera 3 is a panoramic camera, which is placed under the tempered glass cover plate and is used to take close-up photos of the athlete's blind spot when passing the pole.

[0044] The overall size of the capacitive pressure sensor is 4400*125.6mm, and it includes 1324 high-precision, durable and individually calibrated small capacitive pressure sensors, which are wrapped around the high jump bar to detect whether the athlete touches the bar.

[0045] The inductive proximity sensor 13 is movably fixed on the crossbar shelf and can move up and down along the height direction on the shelf. The fixed contact distance with the crossbar is 2 cm. The position of the inductive proximity sensor can be adjusted according to the height of the crossbar.

[0046] The PC is not only used to receive data and images from the data processor, but can also perform auxiliary training and provide professional suggestions based on a large number of database analysis templates and parameter indicator systems.

[0047] The PC is connected to the display screen and is used to three-dimensionally locate the athlete in the picture according to the images taken by the tracking camera and the take-off area camera, read the picture of the athlete passing the bar according to the picture taken by the tracking camera, and read the picture of the athlete passing the bar upwards according to the picture taken by the take-off area camera; then the picture information of the athlete's entire jumping process and the close-up process of passing the bar after three-dimensional processing in the PC, as well as the athlete's vector contact force waveform and related data analysis, are transmitted to the display screen in real time or after a preset time.

[0048] The display screen is used for real-time or delayed playback of the athlete's entire jumping process and close-up of the pole-passing process, and the athlete can test the component force and resultant force waveform images in the horizontal, vertical and longitudinal directions, red warning pop-up windows and related professional analysis and suggestions.

[0049] The above describes in detail the preferred specific embodiments of the utility model. It should be understood that ordinary technicians in this field can make many modifications and changes based on the concept of the utility model without creative work. Therefore, all technical solutions that can be obtained by technicians in this technical field based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the existing technology should be within the scope of protection determined by the claims.

[0050] Anything not described in the present invention is applicable to the prior art.

Claims

1. A kinematic parameter detection device for outdoor high jump, comprising a tracking camera, a take-off area camera, a data processor, a PC and a display screen, characterized in that: The detection device also includes a force measuring platform, a capacitive pressure sensor and an inductive proximity sensor. The force measuring platform is installed on the sports field of the take-off area, the capacitive pressure sensor is wrapped on the high jump crossbar, and the inductive proximity sensors are installed on both sides of the high jump crossbar shelf. The inductive proximity sensors can move up and down along the height direction of the high jump crossbar shelf; The force measuring platform, the capacitive pressure sensor, the inductive proximity sensor, the tracking camera, and the take-off zone camera are all connected to the PC through a hub and a data processor, and the PC is also connected to the display screen.

2. The kinematic parameter detection device for outdoor high jump according to claim 1, characterized in that: The force measuring platform is composed of a number of force measuring plates spliced ​​together to fully cover the entire take-off area; The force plate includes a tempered glass cover, a coupling, a fixing stud, a threaded steel ball, a steel ball fixing sleeve, a force sensor, a mounting frame, and a support seat. The mounting frame is fixed on the excavated foundation of the sports field in the take-off area, and a number of grooves for fixing the force sensor are reserved on the mounting frame. The coupling is fixed on the tempered glass cover plate, the top end of the fixing stud is fixed to the coupling, and the bottom end of the fixing stud is connected to the threaded hole steel ball through a thread; The threaded hole steel ball is fixed by a steel ball fixing sleeve and a support seat, and the space enclosed by the steel ball fixing sleeve and the support seat can accommodate the threaded hole steel ball; the lower part of the support seat is fixed to the force sensor, and the lower part of the force sensor is fixed in the reserved groove of the mounting frame; A take-off area camera is fixedly placed under the tempered glass cover plate; Two tracking cameras were placed on both sides of the force platform.

3. The kinematic parameter detection device for outdoor high jump according to claim 1, characterized in that: The force measuring platform is composed of 27 800x600mm force plates; The tracking camera is used to track and record the athlete's movement postures including take-off, crossing the bar, and falling; The camera in the take-off area is a panoramic camera, which is used to take close-up photos of the blind spots of the athletes crossing the pole; The capacitive pressure sensor is used to detect whether the athlete touches the crossbar.

4. The kinematic parameter detection device for outdoor high jump according to claim 1, characterized in that: The capacitive pressure sensor is a flexible pressure sensor array, and the overall size of the capacitive pressure sensor is 4400*125.6mm.

5. The kinematic parameter detection device for outdoor high jump according to claim 1, characterized in that: The display screen is used to play back the image information of the athlete's entire jumping process and close-up process of passing the pole in real time or with a delay, and to test the athlete's horizontal, vertical and longitudinal direction component and resultant force waveform images, and to display a red warning pop-up window and related professional analysis and suggestions.

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