CN102210926A - Long jump training system based on force measurement platform and digitalization track - Google Patents

Abstract

The invention relates to the field of sports training automation, in particular to a long jump training system based on a force measuring platform and a digital runway. It consists of a digital runway module, a field bus, a force measurement module, a computer and supporting analysis software. It is characterized by: a force measurement platform, a springboard covering the upper surface of the force measurement platform, and a protective layer. The force measurement module and the digital run-up The upper surfaces of the runway modules are connected horizontally to form a comprehensive information acquisition platform for long jump from run-up to take-off; the digital runway composed of the bottom layer, flexible sensor array, circuit and surface plastic completes the time-space sequence parameter collection of athletes’ steps during the run-up process. The force measurement module composed of the force platform, the springboard and the protective layer on it completes the collection of the distribution parameters of the spatiotemporal force when the athlete takes off. The field bus is transmitted to the computer for analysis and display in real time.

Description

Long jump training system based on force plate and digital track

Field: the present invention relates to the field of sports training automation, in particular to a long jump training system based on a force plate and a digital runway.

Technical Background Today's world track and field has stepped into a new pattern where a hundred flowers are blooming, the track and field competition is becoming increasingly fierce, and new forces are constantly emerging. At the same time, judging from the current situation of world track and field development, there is a certain degree of unbalanced development and relatively obvious intercontinental distribution characteristics of advantageous events: the development level of track and field in European and American countries is relatively high, while the overall level of track and field in Asia is relatively low. Low. Although my country's track and field events have a certain foundation in women's middle-distance running and race walking, men's 110-meter high hurdles and other minor events, and have achieved excellent results in many Olympic Games and World Athletics Championships, they are still lagging behind in the world overall. The status, especially in the triple jump, long jump and other events, is far behind that of European and American countries. To change this situation, we must break the traditional training mode, pay attention to the improvement of training methods and means, strengthen the intensity of scientific and technological research, and improve the scientific and technological content and scientific training level in the track and field training process.

The long jump event is very technical, and the run-up and take-off are closely related to the long jump performance. They are the two most important links and the most difficult to grasp. The task of run-up is to obtain the highest run-up speed, and to make technical, physical and psychological preparations for accurate pedaling and fast and powerful take-off; take-off requires athletes to press the button in a very short time under the premise of the highest run-up speed. Complete a series of take-off actions in the correct sequence, so as to obtain the largest possible initial velocity and appropriate take-off angle.

At present, the scientific training methods for long jump are still relatively scarce, mainly relying on human subjective judgment and special ability training and improvement, and a few rely on high-speed image analysis system and force measuring device to obtain kinematic information of the training process, so as to evaluate and analyze Motion technology, this kind of analysis has a large workload, complex and cumbersome equipment, and is limited by scene changes and calibration systems, only partial process information can be obtained, which is expensive. The comprehensive acquisition of dynamics information from run-up to take-off in the whole process has not yet seen a systematic method and equipment, and dynamics information is very important for analyzing and evaluating the competitive tactical ability of long jump athletes and finding ways to improve technical defects, especially The dynamic information such as speed, rhythm, stride, direction of approach, angle and speed of take-off is the key to improve long jump performance.

According to the patent search, the image positioning long jump system used for long jump training, the application number is: 200710114089.4, the publication number is: CN101433757A, mainly through the running positioning line, take-off line, imaging track, imaging camera, camera car and display The image synchronous display system formed to obtain the image of the athlete's movement process has the advantage of using the synchronous image and display system to enable the athlete to see whether their footsteps are on the running positioning line and the take-off line during the training process, so as to achieve correction. Athlete's technical state, reduce take-off errors. However, the equipment used in this method is complex, expensive, pertinent and too subjective, and is not suitable for comprehensive information acquisition and scientific evaluation of long jump training. At present, domestic long jump competition training urgently needs to scientifically analyze and evaluate the long jump process by obtaining the movement rhythm parameters during the run-up process and the take-off information during the take-off process, so as to improve the training performance.

SUMMARY OF THE INVENTION The object of the present invention is to: in order to overcome the defects and deficiencies in the existing long jump training, improve the scientificity and training effect of training, propose a new type of long jump training system based on force plate and digital runway, to obtain the motion Comprehensive analysis of physical and kinetic information, so as to provide scientific training guidance for long jump.

The technical solution of the present invention is: a long jump training system based on a force measuring platform and a digital runway, which is composed of a digital run-up track module, a field bus, a force measuring module, a computer and supporting analysis software, and is characterized in that: the force measuring platform and The springboard covered on the upper surface of the force platform, the force measurement module composed of the protective layer and the upper surface of the digital runway module are connected horizontally to form a comprehensive information acquisition platform for long jump from approach to take-off; the bottom layer, flexible sensor array and circuit The digital runway composed of surface plastic completes the time-space sequence parameter collection of the athlete's steps during the run-up process, and the force-measuring module composed of the force platform, the springboard and the protective layer on it completes the collection of the space-time force distribution parameters of the athlete when taking off After A/D conversion and data preprocessing, the information obtained from the digitized runway and force plate is transmitted to the computer for analysis and display in real time through the field bus.

The digital approach runway module is to paste multiple sensor acquisition arrays between the bottom layer and the plastic layer and fix them on the ground. Each sensor acquisition array is connected to its own data preprocessing circuit, and multiple preprocessing circuits are connected to the connected to the computer on the data bus.

The force measuring platform is a six-dimensional force measuring platform, which is horizontally placed underground, and a take-off board and a protective layer are fixed on the upper surface, and the protective layer is located between the runway and the take-off board.

The long jump comprehensive information acquisition platform composed of the dynamometer module and the digital run-up runway module is placed according to the center axis before the long jump bunker of the venue, and together with the computer data processing module constitutes the long jump training system.

The beneficial effect of the present invention relative to prior art is:

First, the sensor array placed between the bottom layer and the plastic surface of the runway in the digital run-up track module can obtain the athlete's pace information during the run-up process; when the athlete is training on it, the shape, position, and timing of the contact between the sole of the foot and the runway, etc. The parameters can be collected by the sensor array, and after filtering and A/D conversion by the data preprocessing module, they are transmitted to the computer for analysis through the field bus, and information such as the step length, speed, direction and movement rhythm of the run-up process can be obtained from the position timing information , to provide an objective and scientific analysis basis for training.

Second, the sampling time interval of the force plate is very short, which can accurately obtain the spatial force distribution of the athlete at the moment of stepping on the springboard and taking off, including the change of the force in the three directions of X, Y, and Z during the whole take-off process, from Obtain the take-off angle, take-off speed, and take-off direction.

Third, when the training system is not in use, remove the digital runway and the springboard and protective layer on the force platform, and cover the field with plastic to restore the training field for general use.

Fourth, this training system can be used not only for long jump, but also for triple jump, pole vault and other sports that need to obtain movement rhythm and force information.

BRIEF DESCRIPTION OF THE DRAWINGS The patent of the present invention will be further described below in conjunction with the drawings and embodiments.

Fig. 1 is the overall plan view schematic diagram of this invention.

Fig. 2 is a schematic diagram of the lateral hierarchical structure of the training platform of the invention.

Fig. 3 is a system flow chart of the invention applied to the training system.

In Fig. 1, 1. digital runway; 2. field bus; 3. protective layer of force platform; 4. springboard; 5. computer; 6. bunker.

In Fig. 2, 7, the ground; 8, the force measuring platform; 9, the on-site construction protection groove.

Figure 1, the digitalized runway 1 is laid flat on the ground and connected with the force platform module. The upper surfaces of the two are kept on the same level, and both are connected to the computer 5 through the field bus 2. The force measurement module and the digital runway module are composed The comprehensive information acquisition platform is placed on the central axis in front of the bunker 6.

In Fig. 2, the force measuring platform 8 is placed underground in the training site, and the level of the force measuring platform 8 is guaranteed through the construction protection groove on site. The upper surface of the force measuring platform 8 completely covers the springboard 4 and the protective layer 3, which is in phase with the digital runway Then, between the digital runway 1 and the take-off board 4, the athlete steps on the take-off board 4 and the protective layer 3 when taking off to obtain the dynamic parameters when taking off.

Figure 3. After starting up, the system initializes the hardware and prepares to start data collection. The athlete starts long jump training on the comprehensive information acquisition platform composed of the force measurement module and the digital run-up track module. At this time, the athlete's position, timing and other pace information during the run-up process Collected by the digital run-up runway module, the data is preprocessed and sent to the computer 5 through the field bus 2. When the athlete takes off, his feet step on the springboard 4 and the protective layer 3, and the dynamic parameters of the takeoff are obtained by the force platform 8. After After the data is preprocessed, it is connected to the field bus 2 and sent to the computer 5. The computer 5 analyzes and evaluates the athlete's long jump training process according to the kinematic dynamic parameters of the whole process of run-up and take-off, and finally obtains training improvement opinions and feedbacks to the training expert system. Athletes and coaches serve as training guides.

Detailed ways

Example:

Taking the long jump process as an example, when an athlete performs long jump training in the long jump training system based on the force plate 8 and the digital runway 1, at first the force plate 8 and the digital runway 1 are powered on, the computer 5 is turned on, and the system hardware is initialized so that the equipment The software and hardware are in the state of preparation for acquisition; the athletes start their run-up from the digital runway 1, and the digital runway 1 collects the space-time information of the area where the athlete steps on during the run-up process, and transmits it to the computer 5 through the field bus 2 after A/D conversion and data preprocessing . Through the run-up, the athlete has obtained a higher run-up speed, and after making technical, physical and psychological preparations for the pedal and take-off, he reaches the take-off board 4, steps on the protective layer 3 and the take-off board 4 of the force platform 8 with one foot, and completes the Take-off action, at the same time, the force platform 8 obtains the size distribution of the space force and the change with time during the athlete's take-off process, and transmits the data to the field bus 2 after data preprocessing, and finally reaches the computer 5 . The computer 5 analyzes and stores the data transmitted by the field bus 2, and obtains information such as the athlete's approach distance, speed, step length, trajectory, approach rhythm, and take-off angle, direction, and speed during the long jump. The information is analyzed and displayed by the computer expert system, which evaluates the training of the athletes and presents them to the athletes and coaches in a very intuitive way, thereby providing scientific guidance for the training of the athletes, enhancing the training effect, and improving the long jump performance.

Claims (6)

1. a long jump training system based on force plate and digitized runway, is made up of digitized approach runway module, field bus (2), force measurement module, computer (5) and supporting analysis software, is characterized in that: The force measuring module (8), the springboard (4) covering the upper surface of the force measuring platform, and the protective layer (3) are connected horizontally to the upper surface of the digital run-up track module, forming a long jump movement from approach to take-off. Comprehensive information acquisition platform; The force measuring module composed of the force measuring platform (8), the springboard (4) placed on it and the protective layer (3) completes the collection of the distribution parameters of the spatiotemporal force when the athlete takes off, and consists of the bottom layer, the flexible sensor array and the circuit and The digital runway (1) made of plastic on the surface completes the time-space sequence parameter collection of the athletes’ steps during the run-up process, and the information obtained by the digital runway (1) and the force plate (8) is passed through the field bus after A/D conversion and data preprocessing ( 2) Real-time transmission to the computer (5) for analysis and display. 2. The long jump training system based on a force plate and a digital runway according to claim 1, characterized in that: the digital run-up runway module sticks a plurality of sensor acquisition arrays between the bottom layer and the plastic layer and is fixed on the ground (7), each sensor collection array is connected to its own data preprocessing circuit, and multiple preprocessing circuits are connected to the computer (5) by being connected to the data bus (2). 3. the long jump training system based on force plate and digitized runway according to right 1, is characterized in that: described force plate (8) is six-dimensional, and is horizontally placed in the underground field construction protection groove (9) The springboard (4) and the protective layer (3) are fixed by screws on the upper surface of the force plate (8), and the protective layer (3) is located between the digitized runway (1) and the springboard (4). 4. the long jump training system based on force plate and digital runway according to right 1, is characterized in that: the described long jump comprehensive information acquisition platform composed of force measurement module and digital run-up runway module is according to the long jump bunker ( 6) Place the central axis in the front and form the long jump training system together with the computer data processing and analysis module. 5. when the long jump training system based on force plate and digitized runway according to right 1 is not in use, the springboard (4) and protective layer (3) on the digitized runway (1) and force plate (8) can be removed, Cover the field with plastic to restore the training field that meets general use. 6. The long jump training system based on force plate and digital runway according to right 1 can be used not only for long jump, but also for triple jump, pole vault and other sports that need to obtain movement rhythm and force distribution change information. sports.

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