Jump training system for figure skating

Abstract

The present invention specifically relates to a jumping action auxiliary training system for figure skating: comprising: a wearable fixed equipment for trainers to wear; an aircraft for providing upward traction to the trainers wearing the wearable fixed equipment by flying upward; a jumping state monitoring module for collecting the trainers' jumping state data when the trainers perform jumping actions; an adaptive control module for adaptively generating corresponding flight height, flight speed and flight direction according to the trainers' jumping state data combined with their height and weight data during the trainers' jumping actions, and then following the corresponding trainers through the aircraft and providing the required upward traction to the trainers. The jumping action auxiliary training device system of the present invention can assist the trainers in jumping through the aircraft, and can predict the flight-related parameters of the aircraft according to the trainers' jumping state, and then accurately and timely provide the trainers with sufficient upward traction.

Description

Technical Field

[0001] The invention relates to the technical field of training protection devices, and in particular to a jumping action auxiliary training system for figure skating. Background Art

[0002] In high-level competitions, it is usually the small differences that determine the final winner. Trainers want to achieve the best results in the fiercely competitive arena, which requires not only hard work but also the power of science. Especially in skill-oriented events such as figure skating, trainers are required to follow the music and complete various technically difficult movements within the specified time, such as jumps, steps, throws, etc. Among them, jumps are closely related to the trainer's performance. The judges need to give accurate technical scores based on the type of movement, difficulty coefficient, completion status, and degree of annotation in the high-speed and complex movements of the players.

[0003] Therefore, in the daily training of figure skating trainers, it is very important to adopt scientific and reasonable training methods and arrange specific methods for special training. For example, the Chinese patent with publication number CN103301619A discloses a "Figure Skating Rotation Auxiliary Trainer", which has a motor fixed in a basin-shaped machine base, the motor shaft is fixed to the active gear, the turntable is embedded on the machine base surface, the turntable shaft is fixed to the machine base through a bearing, and a passive gear is fixed at the lower end of the turntable shaft. The active gear and the passive gear are matched through a toothed belt transmission, and the operating panel and the handrail are fixed to the side of the turntable through a bracket. This existing solution can select a suitable rotation speed for simulation training according to the characteristics of the trainer himself.

[0004] The above existing schemes are mainly used for trainers' rotation training. However, figure skating mainly examines the trainers' physical coordination ability, and requires trainers to combine jumping and rotation to form jumping movements. Commonly used standard jumping movements include flip flops, flip loops, flip toe loops, hook jumps, flip toe loops and Axel jumps. All of these jumping movements reach different levels of difficulty by increasing the number of rotations in the air. In order to assist trainers in completing jumping movements, auxiliary hoisting rod devices are generally used in the prior art to participate in training. The working principle of the auxiliary hoisting rod device is similar to that of a fishing rod. Specifically, during the trainer's jumping process, the hoisting rod applies additional lifting force to the trainer, assisting the trainer in increasing his jumping height and number of rotations to complete the corresponding jumping movement, so that the trainer can find the rhythm and skills to complete the jumping movement in the continuous training process.

[0005] However, the existing auxiliary suspension rod device requires a sparring partner, who is generally a professional coach (who can skate and has requirements for strength and height), resulting in a high cost of jump training. At the same time, the existing auxiliary suspension rod device cannot collect the trainer's jumping state data (such as take-off strength, take-off angle, etc.). In addition, the existing auxiliary suspension rod device has strict requirements on the professionalism of the coach, and the tacit understanding between the coach and the movement, because the coach needs to apply enough upward traction to the trainer at the right time by observing the trainer's jumping action and aerial posture, so as to effectively assist the trainer in completing the training of the jumping action. Generally speaking, a jumping action requires multiple attempts by the trainer and the coach to succeed. With the development of aircraft and drone technology, the applicant has thought of replacing the auxiliary suspension rod device and the coach by an aircraft (drone) to provide the trainer with upward traction. However, how to effectively apply the aircraft to the training of jumping action, and to accurately and timely provide the trainer with enough upward traction is a technical problem that needs to be solved urgently. Summary of the invention

[0006] In view of the deficiencies of the above-mentioned prior art, the technical problem to be solved by the present invention is: how to provide a jumping action auxiliary training system for figure skating, which can assist the trainee in jumping through an aircraft, and can predict the flight-related parameters of the aircraft according to the trainee's jumping status, and then accurately and timely provide the trainee with sufficient upward traction force, thereby effectively assisting the trainee to complete the jumping action training, and then providing a scientific and effective training approach for figure skating jumping training.

[0007] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0008] A jumping training system for figure skating, comprising:

[0009] Wearing and fixing equipment, which is used to be worn by the corresponding trainer and can be fixed on the body of the corresponding trainer;

[0010] The flying device is fixedly connected to the wearable fixed equipment through a traction rope, and is used to provide an upward traction force to the trainer wearing the wearable fixed equipment by flying upward;

[0011] A jumping state monitoring module is used to collect the jumping state data of the trainer when the trainer performs the jumping action;

[0012] The adaptive control module is used to control the flight of the aircraft by adaptively generating the corresponding flight altitude, flight speed and flight direction according to the jumping status data of the corresponding trainer combined with his height and weight data when the trainer wearing the wearable fixed equipment performs the jumping action. Then, the aircraft follows the corresponding trainer and provides the required upward traction force to the trainer, so as to achieve jumping assistance and jumping fall prevention.

[0013] Preferably, it also includes:

[0014] A handheld remote controller is used for the corresponding trainer to input jumping actions into the adaptive control module; wherein the jumping actions include six options: inner loop jump, outer loop jump, outer toe loop jump, hook jump, inner toe loop jump and Axel jump; each jumping action is provided with a corresponding preset flight trajectory and number of rotations, and the preset flight trajectory includes a gliding route before taking off and a traction flight route for assisting jumping in the air;

[0015] The adaptive control module controls the flight of the aircraft based on the preset flight trajectory and number of rotations corresponding to the jumping action, combined with the adaptively generated flight altitude, flight speed and flight direction.

[0016] Preferably, the aircraft comprises an aircraft body, a rotating blade disposed on the aircraft body and used to generate flight power, a driving component used to drive the rotating blade to rotate and controlled by an adaptive control module, a fixed outer ring fixedly disposed on the aircraft body at a side away from the rotating blade, and a rotating inner ring rotatingly matched with the fixed outer ring and capable of freely rotating relative to the fixed outer ring; wherein a side of the rotating inner ring away from the aircraft body is fixedly connected to an end of a traction rope away from the wearing fixing equipment;

[0017] The aircraft also includes a protective cover which is arranged at a position on the aircraft body corresponding to the rotating blades and can completely cover the rotating blades.

[0018] Preferably, a jumping state monitoring module is provided on the wearable fixed equipment; the jumping state monitoring module includes a motion state monitoring unit for collecting motion state data of the corresponding trainer, a posture information monitoring unit for collecting motion posture data of the corresponding trainer, and a physiological state monitoring module for collecting body temperature and humidity data of the trainer.

[0019] Preferably, the motion state data includes motion speed, motion acceleration, motion direction and / or take-off angle;

[0020] The motion posture data includes the angle between the forearm and the upper arm, the angle between the upper arm and the shoulder, the angle between the upper arm and the torso, the distance between the forearm and the torso, the angle between the torso and the thigh, the angle between the thigh and the calf, the knee flexion angle, the hip flexion angle, the arm swing amplitude and / or the torso twist angle.

[0021] Preferably, the adaptive control module includes:

[0022] The flight altitude prediction unit is used to calculate the corresponding jumping momentum and rotational momentum according to the motion state data and motion posture data of the corresponding trainer; then the corresponding jumping height prediction value and rotation number prediction value are calculated by combining the jumping momentum and rotational momentum of the corresponding trainer with his height and weight data; then the corresponding trainer's rotation number prediction value is compared with the target rotation number of the corresponding jumping action to generate a corresponding rotation difference; then the corresponding jumping height difference is calculated according to the corresponding trainer's rotation difference combined with his height and weight data; finally, the flight altitude of the aircraft is calculated according to the jumping height difference and the jumping height prediction value of the corresponding trainer combined with the extension length of the traction rope.

[0023] Preferably, the adaptive control module further includes:

[0024] The flight altitude adjustment unit is used to calculate the corresponding aerial rotation posture according to the corresponding trainer's movement posture data in the air; then calculate the corresponding rotation momentum reduction value according to the corresponding trainer's aerial posture combined with his height and weight data; then calculate the corresponding rotation number reduction amount through the corresponding trainer's rotation momentum reduction value and jump height prediction value; then update the corresponding rotation number prediction value according to the corresponding trainer's rotation number reduction amount, and then update the existing rotation difference value and jump height difference value accordingly; finally, calculate and update the flight altitude of the aircraft according to the updated jump height difference value and jump height prediction value of the corresponding trainer combined with the stretched length of the traction rope.

[0025] Preferably, the adaptive control module further includes:

[0026] The flight time prediction unit is used to calculate the corresponding predicted take-off time as the flight time of the aircraft according to the jump height difference and jump height prediction value of the corresponding trainer combined with his height and weight data.

[0027] Preferably, the adaptive control module further includes:

[0028] The flight speed prediction unit is used to calculate the corresponding jumping momentum according to the motion state data and motion posture data of the corresponding trainer; then calculate the corresponding jumping prediction distance as the flight distance of the aircraft according to the jumping momentum of the corresponding trainer combined with his height, weight data and predicted take-off time; finally, calculate the flight speed of the aircraft according to the flight distance of the aircraft combined with the corresponding flight time.

[0029] Preferably, it also includes:

[0030] The cloud is used to obtain the trainer's jumping status data and height and weight data, and generate a corresponding training report based on the trainer's jumping status data and height and weight data;

[0031] The coach terminal is used to receive and display the training reports of one or more trainers sent from the cloud for remote viewing by the coach, and can also allow the coach to input corresponding guidance information to the corresponding one or more trainers.

[0032] Compared with the prior art, the jumping action auxiliary training system for figure skating in the present invention has the following beneficial effects:

[0033] The present invention replaces the existing suspension auxiliary device and trainer by an aircraft and wearable fixed equipment. The aircraft provides the trainer with the required upward traction force to assist the trainer in completing the jumping action, that is, the figure skating trainer can perform jumping training independently, and the entire jumping action auxiliary training process does not require the accompaniment and assistance of a professional coach, thereby reducing the cost and difficulty of figure skating jumping training.

[0034] The present invention collects the jumping status data of the trainer during the process of the trainer completing the jumping action, and predicts and generates the corresponding flight altitude, flight speed and flight direction according to the jumping status data of the trainer in combination with his height and weight data to control the flight of the aircraft, so that the aircraft can follow the corresponding user and provide the required upward traction force to the user, thereby assisting the corresponding user to complete the jumping action. That is, the flight-related parameters of the aircraft can be predicted according to the jumping status of the trainer, and sufficient upward traction force can be provided to the trainer accurately and timely, so as to accurately assist the trainer to complete the training of the jumping action, thereby providing a scientific and effective training approach for figure skating jump training.

[0035] The present invention obtains the jumping status data and height and weight data of the trainers through the cloud, and can generate corresponding training reports, so that the coach can remotely view the training reports of one or more trainers through the coach terminal, and can input corresponding guidance information to the corresponding one or more trainers, that is, the coach can remotely view and guide the jumping training process of the trainers (in different venues), and can change from the traditional one-to-one relationship between coach and trainers to one-to-many relationship between coach and trainers, thereby ensuring the training effect of the trainers' jumping movements while further improving the efficiency of the trainers' jumping movement training and the coaches' guidance. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to make the purpose, technical solution and advantages of the invention more clear, the present invention will be further described in detail below with reference to the accompanying drawings, in which:

[0037] Figure 1 It is a schematic diagram of the structure of the aircraft and the wearable fixed equipment;

[0038] Figure 2 The present invention is a logic block diagram of a figure skating jumping action auxiliary training device system.

[0039] The reference numerals in the drawings of the specification include: aircraft 1, traction rope 2, wearable fixing equipment 3, jumping status monitoring module 4, and handheld remote control 5. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but only represents selected embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0041] It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In the description of the present invention, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the invention product is usually placed when used, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. In addition, the terms "horizontal", "vertical", etc. do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted. In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] The following is a further detailed description through specific implementation methods:

[0043] Embodiment 1:

[0044] This embodiment discloses a jumping action auxiliary training system for figure skating.

[0045] like Figure 1 As shown, a jumping action auxiliary training system for figure skating comprises:

[0046] Wearing and fixing equipment 3, which is used to be worn by the corresponding trainer and can be fixed on the body of the corresponding trainer;

[0047] The flying device 1 is fixedly connected to the corresponding wearable fixed equipment through a traction rope 2, and is used to provide an upward traction force to the trainer wearing the wearable fixed equipment by flying upward;

[0048] In this embodiment, before each jump, the traction rope 2 is in a relaxed state, which can provide a psychological preparation process for the trainer.

[0049] It should be noted that the traction rope can be suspended at one or more positions on the trainer, and the suspension point of the traction rope on the trainer can be selected and determined according to the postures corresponding to different jumping movements to avoid interference of the traction rope with various hook movements.

[0050] A jumping state monitoring module 4 is used to collect jumping state data of the trainer when the trainer performs a jumping action;

[0051] The adaptive control module is used to control the flight of the aircraft by adaptively generating the corresponding flight altitude, flight speed and flight direction according to the jumping status data of the corresponding trainer combined with his height and weight data when the trainer wearing the wearable fixed equipment performs the jumping action. Then, the aircraft follows the corresponding trainer and provides the required upward traction force to the trainer, so as to achieve jumping assistance and jumping fall prevention.

[0052] A handheld remote controller 5 is used for the corresponding trainer to input jumping actions to the adaptive control module; wherein the jumping actions include six options: inner loop jump, outer loop jump, outer toe loop jump, hook jump, inner toe loop jump and Axel jump; each jumping action is provided with a corresponding preset flight trajectory and number of rotations, and the preset flight trajectory includes a gliding route before taking off (the gliding route of each jumping action is different) and a traction flight route for assisting jumping in the air (the traction flight route of each jumping action is different);

[0053] The adaptive control module controls the flight of the aircraft based on the preset flight trajectory and number of rotations corresponding to the jumping action, combined with the adaptively generated flight altitude, flight speed and flight direction.

[0054] In this embodiment, when the trainer completes the jump, the jumping training assistance system will enter the standby mode (ie, exit the jumping assistance), and the trainer no longer relies on the jumping training assistance system.

[0055] The present invention pre-sets a preset flight trajectory corresponding to a jumping action, and then after the user selects a jumping action, the flight of the aircraft is controlled according to the preset flight trajectory and number of rotations of the corresponding jumping action, combined with the adaptively generated flight height, flight speed and flight direction, so that the aircraft can be used to assist in improving the trainer's jumping height and number of rotations, thereby effectively assisting figure skating trainers to complete the training of jumping actions, and thus providing a scientific and effective training approach for figure skating jumping action training.

[0056] The present invention replaces the existing suspension auxiliary device and trainer by an aircraft and wearable fixed equipment. The aircraft provides the trainer with the required upward traction force to assist the trainer in completing the jumping action, that is, the figure skating trainer can perform jumping training independently, and the entire jumping action auxiliary training process does not require the accompaniment and assistance of a professional coach, thereby reducing the cost and difficulty of figure skating jumping training.

[0057] The present invention collects the jumping status data of the trainer during the process of the trainer completing the jumping action, and predicts and generates the corresponding flight altitude, flight speed and flight direction according to the jumping status data of the trainer in combination with his height and weight data to control the flight of the aircraft, and then the aircraft follows the corresponding trainer and provides the required upward traction force to the trainer, thereby assisting the trainer to complete the jumping action. That is, the flight-related parameters of the aircraft can be predicted according to the jumping status of the trainer, and sufficient upward traction force can be provided to the trainer accurately and timely, so as to accurately and effectively assist the trainer to complete the training of the jumping action, and thus a scientific and effective training approach can be provided for figure skating jump training.

[0058] Specifically, Figure 1 As shown, the wearable fixing equipment includes shoulder straps, arm straps, chest straps, abdomen straps, hip straps and leg straps which are arranged and fixedly connected in sequence from top to bottom; wherein the shoulder strap is fixedly connected to the end of the traction rope away from the aircraft. A mounting ring is fixedly arranged on the shoulder strap, and the traction rope is fixed to the mounting ring of the shoulder strap by tying and fixing.

[0059] In this embodiment, the overall structure of the wearable fixing equipment can refer to the structure of the existing mature "Wire Acting Clothes" (such as the Xinda XD-A9521 model of film and television Wire Acting Clothes), and each strap can be fixed together by a buckle structure. The buckle fixing method has the advantages of being firmly worn and easy to disassemble.

[0060] In other preferred embodiments, the wearing and fixing equipment can also be designed to be in the style of an existing one-piece skydiving suit, and the shoulder position of the skydiving suit is fixedly connected to the end of the traction rope away from the aircraft.

[0061] The "strap-type" wearing and fixing equipment designed in the present invention can ensure the lightness and wearing firmness of the wearing and fixing equipment, and compared with the structure of clothes or jumpsuits, it can provide trainers with more stable traction, thereby effectively assisting figure skating trainers to complete the training of jumping movements.

[0062] During the specific implementation process, the aircraft includes an aircraft body, rotating blades arranged on the aircraft body and used to generate flight power, a driving component used to drive the rotating blades to rotate and controlled by an adaptive control module, a fixed outer ring fixedly arranged on the aircraft body on a side away from the rotating blades, and a rotating inner ring that rotates with the fixed outer ring and can rotate freely relative to the fixed outer ring. The side of the rotating inner ring away from the aircraft body is fixedly connected to the end of the traction rope away from the wearing and fixing equipment. The rotating inner ring is used for the trainer to complete the rotation without affecting the normal flight of the aircraft, that is, the aircraft and the fixed outer ring do not need to rotate. A mounting ring is fixedly arranged on the rotating inner ring, and the traction rope is fixed together by tying the mounting rings of the rotating inner ring.

[0063] During actual application, the trainer drives the rotating inner ring to rotate on the fixed outer ring through the traction rope to achieve free rotation of the trainer, while the fixed outer ring and the aircraft body themselves do not rotate but remain relatively stationary.

[0064] In this embodiment, the aircraft can be modified or assembled by existing drones, wherein the aircraft body corresponds to the main structure of the drone, the rotating blades correspond to the blade structure of the drone, and the driving components correspond to the driving device of the drone. The only improvement is that the present invention adds a fixed outer ring and a rotating inner ring structure.

[0065] The fixed outer ring is designed as a hollowed-out circular ring structure, while the rotating inner ring is a cylindrical structure with an outer diameter corresponding to the inner diameter of the hollowed-out position in the middle of the fixed outer ring. The rotating inner ring is arranged in the hollowed-out position in the middle of the fixed outer ring, and rolling bodies and a retaining frame for separating the rolling bodies to reduce friction are arranged between the outer peripheral side of the rotating inner ring and the inner peripheral side of the hollowed-out position in the middle of the fixed outer ring, so that the rotating inner ring can rotate freely relative to the fixed outer ring. The overall structure and action principle of the fixed outer ring and the rotating inner ring are similar to those of existing bearings. The fixed outer ring corresponds to the outer ring structure of the bearing, and the rotating inner ring corresponds to the inner ring structure of the bearing.

[0066] In other preferred embodiments, the purpose of free rotation of the rotating inner ring relative to the fixed outer ring can also be achieved by other existing rotating structures.

[0067] The aircraft also includes a protective cover arranged at a position corresponding to the rotating blades on the aircraft body and capable of completely covering the rotating blades. When the trainee falls, the protective cover can prevent the trainee from being cut or scratched by the rotating blades of the aircraft, thereby effectively protecting the trainee during the training process.

[0068] A tightening piece is provided on the rotating inner ring at a position for installing the traction rope; one end of the traction rope away from the wearable fixing equipment is fixedly connected to the rotating inner ring and a section of the rope body is received by the tightening piece. When the traction rope is subjected to an external force in a direction away from the rotating inner ring, the tightening piece can be pulled to stretch the rope body wound on the winding spring.

[0069] When the aircraft does not lift the trainer (wearing the fixed equipment), the present invention can tighten the traction rope through the tightening member to prevent the traction rope from being entangled with the trainer in a relaxed state, thereby effectively protecting the trainer during the training process.

[0070] The aircraft is provided with an infrared distance measuring module with a detection end facing the corresponding wearable fixed equipment and used to obtain the distance between the aircraft and the corresponding wearable fixed equipment;

[0071] The adaptive control module calculates the corresponding trainer's jumping height and the difference in height through the distance between the aircraft and the corresponding wearable fixed equipment combined with the flight altitude of the aircraft.

[0072] The specific calculation method of the storage week difference is specifically described in Example 2.

[0073] The present invention obtains the distance between the aircraft and the wearable fixed equipment through an infrared ranging module, and calculates the user's jumping height and the difference in height based on the flight altitude of the aircraft, so that the user's jumping posture can be effectively monitored and analyzed, and then the user is guided to optimize the jumping action, thereby effectively assisting figure skating trainers to complete the training of jumping actions.

[0074] Embodiment 2:

[0075] In this embodiment, the function of the jumping action auxiliary training device system to dynamically control the aircraft is disclosed.

[0076] In this embodiment, the jumping status monitoring module includes a physical status monitoring unit for collecting the corresponding trainer's physical status data, a motion status monitoring unit for collecting the corresponding trainer's motion status data, a posture information monitoring unit for collecting the corresponding trainer's motion posture data, and a physiological status monitoring module for collecting the trainer's body temperature and humidity data.

[0077] Since figure skating is also an extreme sport and hypothermia can easily occur, it is necessary to monitor the trainers' body temperature and humidity data.

[0078] In this embodiment, the various modules of the jumping state monitoring module can be distributed on the wearable fixed equipment. In order to ensure the accuracy of the data, the number of each module can be multiple.

[0079] Specifically, the physical status data includes heart rate, blood pressure, blood sugar, basal metabolic rate and / or body mass index;

[0080] In this embodiment, the physical state data can be used to determine whether the trainer's physical state is normal. The method and principle of the physical state monitoring unit collecting the physical state data can refer to the existing smart bracelets and body fat scales. The present invention does not make any improvements to the specific means of collecting the physical state data.

[0081] The motion state data includes motion speed, motion acceleration, motion direction and / or take-off angle;

[0082] In this embodiment, the method and principle of the motion state monitoring unit to collect motion state data can refer to existing smart phone motion monitoring software, such as running and step counting software, and specifically the relevant data collection is realized through a multi-axis sensor. The present invention does not make any improvement to the specific means of motion state data collection.

[0083] The motion posture data includes the angle between the forearm and the upper arm, the angle between the upper arm and the shoulder, the angle between the upper arm and the torso, the distance between the forearm and the torso, the angle between the torso and the thigh, the angle between the thigh and the calf, the knee flexion angle, the hip flexion angle, the arm swing amplitude and / or the torso twist angle.

[0084] In this embodiment, the method and principle of the posture information monitoring unit to collect motion posture data can refer to the existing video skeleton analysis software. The specific process includes: obtaining the trainer's jumping video; performing skeleton analysis and posture analysis on the video frames of the jumping video to generate a corresponding human key point coordinate map; selecting the corresponding multi-frame optimal video frames based on the human key point coordinate map combined with the corresponding action evaluation standard; and calculating the motion posture data of the jumping video based on the multi-frame optimal video frames. The present invention does not make any improvements to the specific means of collecting motion posture data.

[0085] In this embodiment, the height and weight data can be collected by manual measurement and manual entry by a trainer or other person.

[0086] In the specific implementation process, Figure 2 As shown, the adaptive control module includes:

[0087] The flight altitude prediction unit is used to calculate the corresponding jumping momentum and rotational momentum according to the motion state data and motion posture data of the corresponding trainer; then the corresponding jumping height prediction value and rotation number prediction value are calculated by combining the jumping momentum and rotational momentum of the corresponding trainer with his height and weight data; then the corresponding trainer's rotation number prediction value is compared with the target rotation number of the corresponding jumping action to generate a corresponding rotation difference; then the corresponding jumping height difference is calculated according to the corresponding trainer's rotation difference combined with his height and weight data; finally, the flight altitude of the aircraft is calculated according to the jumping height difference and the jumping height prediction value of the corresponding trainer combined with the extension length of the traction rope.

[0088] Among them, the saved turn (also known as the bad turn) refers to the trainer falling on the ice before completing the last turn.

[0089] In this embodiment, the jumping momentum and rotational momentum refer to the energy generated by the trainer to complete the jump and rotation by controlling the posture and movement amplitude of various parts of the body. Among them, the present invention calculates the corresponding jumping momentum by the movement speed, movement acceleration, center of gravity height and take-off angle; and calculates the corresponding rotational momentum by the swing amplitude, knee flexion angle, hip flexion angle and trunk twisting angle during jumping. Of course, in other preferred embodiments, the jumping momentum and rotational momentum can also be calculated by other parameters.

[0090] The specific values ​​of jumping momentum and rotational momentum can be calculated through historical data. Take the calculation of jumping momentum as an example: find 100 to 500 trainers as experimenters; let the experimenters jump several times with different movement speeds, movement accelerations, center of gravity heights and / or take-off angles, and record the jumping heights; the value after jumping height*weight / height is used as jumping momentum; finally, based on a large amount of historical data, fit the relationship between jumping momentum and movement speed, movement acceleration, center of gravity height and take-off angle, such as:

[0091] Jump momentum = a speed + b acceleration + c center of gravity height + d take-off angle; a, b, c, d are all parameters to be fitted. The calculation method of rotation momentum is the same as that of jump momentum.

[0092] Among them, in this embodiment, it is defined as:

[0093] Predicted jump height = jump momentum * height / weight;

[0094] Predicted value of rotation number = predicted value of jump height + rotation momentum * height / weight;

[0095] Jump height difference = (save circumference difference - rotational momentum * height / weight) / e.

[0096] e is the parameter to be fitted, which can be calculated and fitted by referring to the calculation process of jump momentum.

[0097] Flight height = jump height difference + jump height prediction + stretch length of traction rope.

[0098] The present invention calculates jumping momentum and rotational momentum according to motion state data and motion posture data, then calculates a predicted jumping height value and a predicted number of rotations by combining the jumping momentum and rotational momentum with height and weight data, then calculates a jumping height difference according to the number of rotations difference combined with the height and weight data, and finally calculates the flight height of the aircraft according to the jumping height difference and the predicted jumping height value combined with the stretched length of the traction rope, that is, the flight of the aircraft can be controlled by predicting and generating a corresponding flight height according to the jumping state data of the trainer combined with the height and weight data, that is, the flight-related parameters of the aircraft can be predicted according to the jumping state of the trainer, and then sufficient upward traction force can be accurately and timely provided to the trainer, so as to accurately and effectively assist the trainer in completing the training of jumping movements.

[0099] The flight altitude adjustment unit is used to calculate the corresponding aerial rotation posture according to the corresponding trainer's movement posture data in the air; then calculate the corresponding rotation momentum reduction value according to the corresponding trainer's aerial posture combined with his height and weight data; then calculate the corresponding rotation number reduction amount through the corresponding trainer's rotation momentum reduction value and jump height prediction value; then update the corresponding rotation number prediction value according to the corresponding trainer's rotation number reduction amount, and then update the existing rotation difference value and jump height difference value accordingly; finally, calculate and update the flight altitude of the aircraft according to the updated jump height difference value and jump height prediction value of the corresponding trainer combined with the stretched length of the traction rope.

[0100] In this embodiment, the rotational momentum reduction value refers to the momentum loss value caused by the trainer's non-standard limb movements during the aerial rotation process. Generally speaking, the smaller the trainer's trunk and limbs are, the smaller the rotational momentum reduction value is, and the larger the trainer's trunk and limbs are, the larger the rotational momentum reduction value is. Among them, the present invention calculates the corresponding rotational momentum reduction value through the angle between the forearm and the upper arm, the angle between the upper arm and the shoulder, the angle between the upper arm and the trunk, the distance between the forearm and the trunk, the angle between the trunk and the thigh, and the angle between the thigh and the calf. The calculation of the specific numerical value of the rotational momentum reduction value can be inferred through historical data, and specifically, reference can be made to the calculation and fitting method of the jumping momentum.

[0101] The present invention calculates an aerial rotation posture according to aerial motion posture data, then calculates a rotation momentum reduction value according to the aerial posture in combination with height and weight data, then calculates a rotation number reduction amount through the rotation momentum reduction value and a jump height prediction value, then updates the rotation number prediction value, the stored rotation difference value and the jump height difference value according to the rotation number reduction amount, and finally updates the flight height of the aircraft according to the updated jump height difference value and the jump height prediction value, so that the aerial rotation posture of the trainer can be analyzed and the rotation momentum reduction value can be calculated during the aerial rotation process, and then the flight height of the aircraft can be dynamically adjusted and updated, so that the flight height of the aircraft can be better adapted to the trainer's jumping state and aerial posture, that is, the flight-related parameters of the aircraft can be predicted according to the trainer's jumping state, and then sufficient upward traction force can be accurately and timely provided to the trainer, so that the trainer can be accurately and effectively assisted in completing the training of jumping movements.

[0102] The flight time prediction unit is used to calculate the corresponding predicted take-off time as the flight time of the aircraft according to the jump height difference and jump height prediction value of the corresponding trainer combined with his height and weight data.

[0103] In this embodiment, the predicted time in the air = (f jumping height difference + g jumping height predicted value) * height / weight.

[0104] Both f and g are parameters to be fitted, and can be deduced and fitted by referring to the calculation process of jump momentum.

[0105] The present invention calculates the predicted take-off time as the flight time of the aircraft based on the jumping height difference and the jumping height prediction value combined with the height and weight data, and can generate the corresponding flight time according to the jumping status data of the trainer combined with his height and weight data to control the flight of the aircraft, that is, it can predict the flight-related parameters of the aircraft according to the jumping status of the trainer, and then accurately and timely provide the trainer with sufficient upward traction, so as to accurately and effectively assist the trainer to complete the training of jumping movements.

[0106] The flight speed prediction unit is used to calculate the corresponding jumping momentum according to the motion state data and motion posture data of the corresponding trainer; then calculate the corresponding jumping prediction distance as the flight distance of the aircraft according to the jumping momentum of the corresponding trainer combined with his height, weight data and predicted take-off time; finally, calculate the flight speed of the aircraft according to the flight distance of the aircraft combined with the corresponding flight time.

[0107] In this embodiment, flight distance = predicted jump distance = h jump momentum * i predicted time in the air * height / weight.

[0108] Both h and i are parameters to be fitted, and can be deduced and fitted by referring to the calculation process of jump momentum.

[0109] The present invention calculates the corresponding jumping momentum according to the motion state data and the motion posture data, and then calculates the predicted jumping distance according to the jumping momentum combined with the height and weight data and the predicted take-off time as the flight distance of the aircraft, and finally calculates the flight speed according to the flight distance of the aircraft combined with the flight time. The present invention can predict and generate the corresponding flight speed according to the jumping state data of the trainer combined with his height and weight data to control the flight of the aircraft, that is, it can predict the flight-related parameters of the aircraft according to the jumping state of the trainer, and then accurately and timely provide the trainer with sufficient upward traction force, so as to accurately and effectively assist the trainer to complete the training of jumping movements.

[0110] The flight direction prediction unit is used to calculate the corresponding jumping direction as the flight direction of the aircraft according to the motion state data of the corresponding trainer.

[0111] In this embodiment, the jumping direction of the trainer is consistent with his movement direction.

[0112] The present invention calculates the jumping direction as the flight direction of the aircraft based on the trainer's motion state data, and can predict and generate the corresponding flight direction based on the trainer's jumping state data combined with his / her height and weight data to control the flight of the aircraft. That is, the flight-related parameters of the aircraft can be predicted according to the trainer's jumping state, and then sufficient upward traction force can be accurately and timely provided to the trainer, thereby accurately and effectively assisting the trainer to complete the training of jumping movements.

[0113] The flight following optimization unit is used to dynamically adjust the flight speed and direction of the aircraft according to the real-time movement position of the corresponding trainer and the real-time flight position of the aircraft, so that the aircraft always remains directly above the corresponding trainer, so as to provide the required vertical upward traction to the corresponding trainer through the aircraft.

[0114] In this embodiment, the real-time position of the trainer and the real-time position of the aircraft can be obtained through existing indoor positioning technology, such as using an ultra-wideband positioning system with high positioning accuracy to obtain the real-time position of the trainer and the real-time position of the aircraft, and its positioning accuracy can reach 10-30 cm. The ultra-wideband positioning system is an existing mature system. Compared with the traditional narrowband system, it has the advantages of strong penetration, low power consumption, good anti-multipath effect, high security, low system complexity, and the ability to improve precise positioning accuracy. It is usually used for positioning, tracking or navigation of indoor moving objects.

[0115] Specific:

[0116] Set up multiple ultra-wideband base stations in the training area;

[0117] An aircraft positioning module, namely, an ultra-wideband tag 1, is provided on the aircraft;

[0118] A personnel positioning module, namely, an ultra-wideband tag 2, is provided on the wearable fixed equipment;

[0119] The specific location of the ultra-wideband tag 1 or 2 in the training ground is determined by measuring the transmission delay difference between different ultra-wideband base stations and the ultra-wideband tag 1 or 2, that is, indoor positioning is achieved.

[0120] The present invention dynamically adjusts the flight speed and flight direction of the aircraft according to the real-time position of the trainer's movement and the real-time flight position of the aircraft, so that the aircraft always remains in a position directly above the corresponding trainer, and then provides the required vertical upward traction force to the corresponding trainer through the aircraft, that is, the aircraft can better follow the trainer and provide the required upward traction force to the trainer, thereby better assisting the trainer to complete the corresponding jumping action.

[0121] The flight trajectory generating unit is used to calculate the corresponding take-off time as the flight starting time of the aircraft according to the motion state data and motion posture data of the corresponding trainer; then calculate the corresponding predicted take-off time as the flight duration of the aircraft according to the jump height difference and jump height predicted value of the corresponding trainer combined with his height and weight data; finally, calculate and generate the flight trajectory of the aircraft according to the flight starting time and flight duration of the aircraft combined with the corresponding flight altitude, flight speed and flight direction.

[0122] In this embodiment, the take-off time refers to the starting time when the trainer's feet leave the ground when jumping. Specifically, the corresponding take-off time is calculated by the trainer's arm swing amplitude, knee flexion angle, hip flexion angle and center of gravity drop height. The calculation of the specific value of the take-off time can be extrapolated through a large amount of historical data: find 100 to 500 trainers as experimenters; let the experimenters jump several times with different arm swing amplitudes, knee flexion angles, hip flexion angles and / or center of gravity drop heights, and record the take-off time; finally, fit the relationship between the take-off time and the arm swing amplitude, knee flexion angle, hip flexion angle and center of gravity drop height based on a large amount of historical data, such as:

[0123] Take-off time = A arm swing amplitude + B knee flexion angle + C hip flexion angle + D center of gravity drop height; A, B, C, D are all parameters to be fitted.

[0124] The method and principle of generating the flight trajectory can refer to the method of generating vehicle driving trajectory by existing map software, or the method of generating running trajectory by existing running software, and the data such as starting time, flight duration, flight altitude, flight speed and flight direction are integrated with the generated flight trajectory.

[0125] The present invention calculates and generates a flight trajectory by combining the flight start time and flight duration of the aircraft with the corresponding flight altitude, flight speed and flight direction, so that the traction trajectory of the aircraft on the trainer can be analyzed through the flight trajectory, and then the trainer can be assisted in analyzing and locating his technical problems, and the trainer can be assisted in optimizing his movement posture and aerial posture, so that the trainer can find the rhythm and technique for completing the jumping action more quickly, thereby better assisting the trainer in completing the training of the jumping action.

[0126] The flight trajectory prediction unit is used to establish the association between the corresponding jumping action and the flight trajectory of the aircraft when a single trainer completes the corresponding jumping action; then all the flight trajectories corresponding to the single jumping action are fitted into a flight trajectory as the preset flight trajectory corresponding to the single jumping action through regularized linear fitting. After the corresponding trainer selects the corresponding jumping action, the aircraft is controlled to fly according to the preset flight trajectory of the corresponding jumping action.

[0127] In this embodiment, the regularized linear fitting is an existing mature technology.

[0128] The present invention fits all flight trajectories corresponding to a single jumping action into one flight trajectory as a preset flight trajectory corresponding to the single jumping action, so that after the trainer selects the corresponding jumping action, the aircraft can be controlled to fly according to the preset flight trajectory of the corresponding jumping action, that is, the preset flight trajectory can be recommended to the trainer through historical data, so that the flight-related parameters of the aircraft can be better adapted to the trainer's jumping state data, and the trainer can be better followed and provided with the required upward traction force, so as to better assist the trainer to complete the corresponding jumping action.

[0129] Embodiment three:

[0130] In this embodiment, the remote guidance function of the jumping movement auxiliary training device system is disclosed.

[0131] A jumping action auxiliary training device for figure skating, further comprising:

[0132] The cloud is used to obtain the user's jumping status data and height and weight data, and generate a corresponding training report according to the user's jumping status data and height and weight data;

[0133] The coach terminal is used to receive and display the training reports of one or more users sent from the cloud for remote viewing by the coach, and can also allow the coach to input corresponding guidance information to the corresponding one or more users.

[0134] The present invention obtains the jumping status data and height and weight data of the trainers through the cloud, and can generate corresponding training reports, so that the coach can remotely view the training reports of one or more trainers through the coach terminal, and can input corresponding guidance information to the corresponding one or more trainers, that is, the coach can remotely view and guide the jumping training process of the trainers (in different venues), and can change from the traditional one-to-one relationship between coach and trainers to one-to-many relationship between coach and trainers, thereby ensuring the training effect of the trainers' jumping movements while further improving the efficiency of the trainers' jumping movement training and the coaches' guidance.

[0135] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit the technical solution. Those skilled in the art should understand that those modifications or equivalent substitutions of the technical solution of the present invention that do not depart from the purpose and scope of the technical solution should be included in the scope of the claims of the present invention.

Claims

1. Jumping training system for figure skating, It is characterized in that include: Wearing and fixing equipment, which is used to be worn by the corresponding trainer and can be fixed on the body of the corresponding trainer; The flying device is fixedly connected to the wearable fixed equipment through a traction rope, and is used to provide an upward traction force to the trainer wearing the wearable fixed equipment by flying upward; A jumping state monitoring module is used to collect the jumping state data of the trainer when the trainer performs the jumping action; The jumping state monitoring module includes a motion state monitoring unit for collecting motion state data of the corresponding trainer, and a posture information monitoring unit for collecting motion posture data of the corresponding trainer; The motion state data includes motion speed, motion acceleration, motion direction and / or take-off angle; The motion posture data includes the angle between the forearm and the upper arm, the angle between the upper arm and the shoulder, the angle between the upper arm and the trunk, the distance between the forearm and the trunk, the angle between the trunk and the thigh, the angle between the thigh and the calf, the knee flexion angle, the hip flexion angle, the arm swing amplitude and / or the trunk twist angle; The adaptive control module is used to adaptively generate the corresponding flight altitude, flight speed and flight direction according to the corresponding trainer's jumping state data combined with his height and weight data to control the flight of the aircraft when the trainer wearing the wearable fixed equipment performs a jumping action, and then the aircraft follows the corresponding trainer and provides the required upward traction force to the trainer, so as to achieve jumping assistance and jumping fall prevention; The adaptive control module includes: The flight altitude prediction unit is used to calculate the corresponding jumping momentum and rotation momentum according to the motion state data and motion posture data of the corresponding trainer; then calculate the corresponding jumping height prediction value and rotation number prediction value by combining the jumping momentum and rotation momentum of the corresponding trainer with his height and weight data; then compare the corresponding trainer's rotation number prediction value with the target rotation number of the corresponding jumping action to generate a corresponding rotation difference; then calculate the corresponding jumping height difference according to the corresponding trainer's rotation difference combined with his height and weight data; finally, calculate the flight altitude of the aircraft according to the corresponding trainer's jumping height difference and the jumping height prediction value combined with the extension length of the traction rope; The flight altitude adjustment unit is used to calculate the corresponding air rotation posture according to the corresponding trainer's motion posture data in the air; then calculate the corresponding rotation momentum reduction value according to the corresponding trainer's air posture combined with his height and weight data; then calculate the corresponding rotation cycle reduction amount according to the corresponding trainer's rotation momentum reduction value and the jump height prediction value; then update the rotation cycle prediction value according to the corresponding trainer's rotation cycle reduction amount, and then update the stored rotation cycle difference value and jump height difference value accordingly; finally, calculate and update the flight altitude of the aircraft according to the corresponding trainer's updated jump height difference value and jump height prediction value combined with the extension length of the traction rope; A flight time prediction unit, used to calculate the corresponding predicted take-off time as the flight time of the aircraft according to the jump height difference and the jump height prediction value of the corresponding trainer combined with his height and weight data; The flight speed prediction unit is used to calculate the corresponding jumping momentum according to the motion state data and motion posture data of the corresponding trainer; then calculate the corresponding jumping prediction distance as the flight distance of the aircraft according to the jumping momentum of the corresponding trainer combined with his height, weight data and the predicted time of taking off; finally, calculate the flight speed of the aircraft according to the flight distance of the aircraft combined with the corresponding flight time; Jumping momentum and rotational momentum refer to the energy generated by the trainer to complete jumping and rotation by controlling the posture and movement range of various parts of the body; the corresponding jumping momentum is calculated by movement speed, movement acceleration, center of gravity height and take-off angle; the corresponding rotational momentum is calculated by the arm swing amplitude, knee flexion angle, hip flexion angle and trunk twisting angle during jumping.

2. The jumping action auxiliary training system for figure skating according to claim 1, It is characterized in that Also includes: A handheld remote controller is used for the corresponding trainer to input jumping actions into the adaptive control module; wherein the jumping actions include six options: inner loop jump, outer loop jump, outer toe loop jump, hook jump, inner toe loop jump and Axel jump; each jumping action is provided with a corresponding preset flight trajectory and number of rotations, and the preset flight trajectory includes a gliding route before taking off and a traction flight route for assisting jumping in the air; The adaptive control module controls the flight of the aircraft based on the preset flight trajectory and number of rotations corresponding to the jumping action, combined with the adaptively generated flight altitude, flight speed and flight direction.

3. The jumping action auxiliary training system for figure skating according to claim 1, Features: The aircraft includes an aircraft body, a rotating blade disposed on the aircraft body and used to generate flight power, a driving component used to drive the rotating blade to rotate and controlled by an adaptive control module, a fixed outer ring fixedly disposed on a side of the aircraft body away from the rotating blade, and a rotating inner ring that rotates in coordination with the fixed outer ring and can rotate freely relative to the fixed outer ring; The side of the rotating inner ring away from the aircraft body is fixedly connected to the end of the towing rope away from the wearing and fixing equipment; The aircraft also includes a protective cover which is arranged at a position on the aircraft body corresponding to the rotating blades and can completely cover the rotating blades.

4. The jumping action auxiliary training system for figure skating according to claim 1, It is characterized in that Also includes: The cloud is used to obtain the trainer's jumping status data and height and weight data, and generate a corresponding training report based on the trainer's jumping status data and height and weight data; The coach terminal is used to receive and display the training reports of one or more trainers sent from the cloud for remote viewing by the coach, and can also allow the coach to input corresponding guidance information to the corresponding one or more trainers.

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