IT202100012935A1 - Customizable device for assisted training in real time based on artificial intelligence. - Google Patents

Description

BRIEF DESCRIPTION OF THE INVENTION

The present invention relates to an electronic apparatus that can be integrated and a hybrid system based on artificial intelligence and matrix calculation for the analysis of movement data.

The electronic apparatus according to the present invention, comprising: the hybrid system according to the present invention; at least one motion sensor; at least one wireless transmission system; at least one microcontroller; at least one data management and archiving system; and at least one display device; ? useful to assist the user who practices activities? sport and/or correct and/or evaluate in real time the correctness of the movement during the execution of a physical exercise by sending feedback on the training performance.

The electronic apparatus and the hybrid system in accordance with the present invention can be customized to the physical and motor characteristics of the user, avoiding and/or reducing the risks associated with incorrect posture or incorrect execution of the exercises, and achieving the best results and benefits during the activity? sporty. Advantageously, the object of the present invention can be employed to assist and assist people with disabilities? motor or physical during training and allow them to achieve the best results in relation to their abilities? residual.

FIELD OF THE INVENTION

The benefits of practicing sport and the achievement of the objectives of a training program depend on the correct execution of the movements, on the assumption of correct posture and on the correct use of the tools. Therefore, ? The presence of qualified personnel who constantly supervise and assist the user during the execution of the exercises is essential in order to avoid accidents, improve the benefits and results of the activity physics, what? how should the presence of a sufficient number of coaches be guaranteed within the gyms and centers equipped in relation to the number of visitors for adequate assistance.

Habits and needs? Whose sports for? they are constantly changing, conforming to people's lifestyles. In fact, work reasons, family commitments as well as? the frenetic rhythms of the city? and the consequent reduced availability? of time and money cause impediments. For these reasons the activity? sporty and the training courses are no longer? exclusively practiced inside gyms or equipped centres, but they are also carried out at home or in outdoor places in complete autonomy and in the absence of qualified personnel who can provide assistance during the execution of the exercises. ? it is therefore necessary to provide for adaptations that can facilitate the practice of sport by adapting it to one's own needs and lifestyles which are constantly changing.

Furthermore, the pandemic that has hit the world in the last year has profoundly changed the possibility? of access and the modality? attendance at gyms. Social distancing, for example, has favored the spread of virtual training courses.

? so clear the need? of technologies and devices that assist and correct the user in real time during the execution of the exercises in order to avoid injuries and to improve the performance and benefits of the movements in the absence of experts. Furthermore, the use of these technologies also aims to considerably facilitate the work of qualified personnel who often find themselves managing several? users simultaneously. Furthermore, can the aforementioned technologies be a valid support for people with disabilities? or disable? temporary.

Applications for fitness, online courses and video channels in which qualified personnel hold fitness lessons are known to experts in the art, providing users with: standard or customizable training programs, explanations and practical demonstrations for an execution as quick as possible. possible correction of the exercises, monitoring of personal parameters, final report with the performances achieved during the training session, data archiving to verify the progress and improvements achieved over time. However, the user while using these applications does not receive assistance and corrections in real time because? the movement performed can not? be monitored and analyzed.

Furthermore, while providing customizable training programs in relation to the objectives to be achieved, these applications do not allow the training programs to be adapted to the physical and motor characteristics of the individual user.

People with disabilities? or disable? temporary, for example, have the need? of programs that include exercises suitable for personal physical and motor characteristics in order to achieve the maximum possible in terms of results and benefits from sporting practice.

?The United Nations Convention on the Rights of Persons with Disabilities?? ratified by Italy in 2009 provides in art. 30 to encourage and promote participation in the activities? athletes of people with disabilities? making available to them, on an equal basis with others, adequate means of education, training and resources; also guaranteeing access to places that host activities? athletes by identifying training strategies and appropriate exercises. In the light of what has been said previously, Is it necessary to provide adequate means and tools that can be adapted to the skills? residues of people with disabilities, therefore advanced technologies and devices that can provide assistance in the absence of qualified personnel who check and correct the user.

Instruments and devices for practicing sports are known in the state of the art, designed and developed to allow the user to perform fitness exercises autonomously.

The invention WO2007022421A2, for example, reports a digital system for analyzing and monitoring the activity of physics that allows controlled playback of digital content and includes a training data acquisition module in real time including: heart rate, speed? and distance.

The document US9750454B2 reports a method and a mobile device for the precise acquisition of data during training useful for improving the maximal strength of the user.

Document CN110478872A describes the use of artificial intelligence and holographic line projection technology in the field of body building.

The invention described in WO2009013679A2 ? relating to a device and method for physical training and general exercise, such as fitness, yoga, pilates, weight training, body building and aerobics. However, although the invention uses data from the user's motion sensors to make a comparison with a reference model and activate alarms in case of differences, the feedback is sent after a time interval and only if the difference exceeds one certain threshold. Furthermore, this device does not allow the user to receive suggestions to improve the quality? of the exercise and achieve the goal in an optimal way.

The invention described in the US10065074B1 patent refers to systems and methods for analyzing data and providing feedback on the performance relating to the movement performed, posture and activities performed. motor skills of the user, using wearable sensors that communicate in wireless with computer devices.

In US20150039106A1 the inventors have described a stationary fitness device for use within a fitness room. In detail, the invention comprises a contactless sensor for detecting the user's movements, such as for example a radio frequency system or an optical sensor, a unit? display for reproducing the movement sequences relating to an exercise performed by a virtual trainer and for displaying the user?s virtual image generated by a computer.

Furthermore, the invention compares the movement data relating to the exercise performed by the user of the device and that stored in the PC's memory in order to provide real-time information on the performance of the exercise.

However, the device is not can be integrated into common fitness equipment or clothing used for training.

Also, the use of an optical sensing system ? subject to greater misjudgment than a system including motion sensors. In fact, the use of devices that exploit the analysis of images or videos involves errors in the evaluation and measurement of the parameters, errors related, for example, to the quality? of the recovery.

In order to carry out a qualitatively and/or quantitatively acceptable analysis, the recovery must be carried out with a correct angle able to ?see? the characteristics of the movement and must also be carried out in the presence of adequate lighting.

If the point taken as a reference for the movement in question, for example the? extremity? of the balance wheel, is it dark on the video and/or on the image, or if the balance wheel passes near? of the body, without possibility? to discriminate the? intensity? of the tool from that of the user, the optical apparatus could completely lose the reference for the movement or at least lose the real information of the movement and therefore carry out an erroneous analysis of the correctness of the exercise performed.

The quality? shooting optics? fundamental especially for movements repeated over time, since? the user moving with high probability? from the optimal starting position it would cause the loss of the initial reference information for the correct evaluation of the movements following the first one.

On the contrary, the physical sensor does not need these attentions and ? wearable or integrated in all sports equipment; and having small dimensions it is useful for the realization of portable devices.

The object of the invention described in EP2272569B1 ? a fitness tracking system that can? provide the user with audio feedback on the performance of the parameters monitored during the activity? physics.

In EP2581042B1 the inventors describe a device for analyzing and monitoring the exercise performed by a user by providing the latter with customizable programs.

The document EP2383021B1 describes an apparatus for the assisted execution of a fitness exercise equipped with a fitness instrument and configured to interact with the user. The invention provides real-time feedback by comparing the signal representing the user's movement and an ideal reference model predefined by means of an avatar. This device, however, is not been integrated into garments useful for training such as, for example, boxing gloves or dance shoes. Furthermore, the comparison with a predefined reference ideal model does not allow to evaluate the best performances that the user can? reach in relation to their physical and motor characteristics, as in the case of athletes with disabilities? motor.

DESCRIPTION OF THE INVENTION

? therefore an object of the present invention is an electronic apparatus for assisting the user and/or correcting and/or evaluating the correctness of the movement during the performance of sporting practice.

? a further object of the present invention is an electronic apparatus characterized in that:

- assists and supports the user in real time during fitness training;

- allows the user to correctly perform the movements of a given exercise even in the absence of qualified personnel;

- send audio and/or visual messages in real time including: instructions for setting up said electronic device, corrections and/or advice and/or information useful for achieving the best performance from training;

send feedback on training performance.

? a further object of the present invention is a hybrid system comprising artificial intelligence (A.I. from the English term artificial intelligence) and matrix calculation for movement data analysis, characterized by the fact that:

- ? useful for assisting users and/or correcting and/or evaluating in real time the correctness of the movement during the execution of a physical exercise; - send suggestions and/or any corrections to the user on movements performed incorrectly;

- provides the information necessary to complete the training achieving the best results and benefits;

- the AI has implemented on it a set of commands to be sent for setting the apparatus including a set of specific commands for each exercise; in which said commands are sent to the user by means of software installed on the device useful for the interaction between the electronic device and the user;

- the A.I. records the user?s physical and motor parameters, possibly useful for modulating the movement reference matrix based on the characteristics of the individual user.

- the A.I. sends voice alerts in real time to the user using a reference vocabulary implemented in it relating to the movements to be analysed;

- the A.I. communicates via visual messages with the user by means of an avatar.

In accordance with the present invention, the terms ?exercise?, ?training?, ?sport practice?, ?gymnastic exercise?, ?movement(s)? and ?step(s)? are used indistinctly in this document in order to indicate the movement of the body and/or equipment or both at the same time with the ultimate purpose of performing physical exercise.

Furthermore, in accordance with the present invention the terms ?coach?, ?expert?, ?teacher?, ?personal trainer?, ?qualified personnel? are used in the document without distinction to indicate the professional figure in charge of guiding the user during the practice of the activity? sporty.

? a further object of the present invention is an electronic apparatus comprising a hybrid system as defined above; characterized by the fact that:

- provides the user with real-time feedback on the quality? and on the performance of the movements performed in order to allow the achievement of the best possible results during the exercise in relation to the physical and motor characteristics of the user, in which said feedback ? given by means of audio and/or visual alerts;

- ? customizable to the physical and motor characteristics of the user by means of an initial setting of said device;

- assists and assists during the activity? sporty people with disabilities physical and/or motor in the absence of qualified personnel.

This purpose? fully achieved by the electronic apparatus and the hybrid system to assist the users and/or correct and/or evaluate the correctness of the movement as described in the appended claims.

In particular, ? An object of the present invention is an electronic apparatus comprising: a hybrid system as defined above; at least one motion sensor; at least one wireless transmission system; at least one microcontroller; at least one data management and archiving system; at least one display device;

characterized by the fact that:

- the motion sensor comprises at least one of gyroscope, accelerometer or magnetometer, and/or a combination thereof; in which said motion sensor ? integrable in one or more? points on fitness equipment and/or sportswear, and ? useful for acquiring in vector form and then monitoring in real time the reference data relating to the user's movement during the execution of the exercise;

- the wireless transmission system ? useful for sending the output data from the motion sensors to the electronic apparatus in accordance with the present invention, for communication between the components of the electronic apparatus in accordance with the present invention, and for sending the data to the user;

- the microcontroller has implemented the hybrid system in accordance with the present invention;

- the data management and archiving system ? preferably a software, pi? preferably an application installed on a commonly used and small-sized portable device; wherein said data management and archiving system allows the electronic apparatus in accordance with the present invention to: interact with the user, memorize the reference function of a given exercise, memorize the representative movements of the exercise performed by the trainer and that the? user will have to? perform during a virtual training course, archive the data relating to the exercise performed by the user for later viewing over time and remotely,

- networks;

- the display device ? chosen from the group including: screen, TV, computer, tablet, smartphone, or other portable and non-portable display devices. Said display device ? useful for displaying real-time information to assist and/or correct the user during the execution of the exercise, the results of the movement analysis, the feedback and the final report of the movement analysis. Advantageously, said display device allows during a virtual training course to project by means of an avatar the sequence of exercises recorded by the coach that the user must perform; to visualize at the end of an exercise the points in which the user has committed errors and/or has? deviated from the correct reference movement by means of a graphical representation and through an avatar.

? a further object of the present invention is a method for assembling an electronic apparatus in accordance with the present invention comprising a hybrid system; at least one motion sensor; at least one wireless transmission system; at least one microcontroller; at least one data management and archiving system; at least one display device; and at least one power supply system; in which said procedure ? characterized by the fact that:

- the movement sensor, the microcontroller, the data management and archiving system are installed on an electronic card;

- in which said electronic card and the power supply system are installed inside a case;

- in which said custody ? integrated into fitness equipment including: Olympic barbell, barbell, dumbbells, strength training machines, kettlebells, medicine balls, wooden training swords; and/or in clothing used during training including: shoes, boxing gloves, ballet shoes, football boots, weighted vests, and shin guards.

The electronic apparatus in accordance with the present invention, as described in the attached claims, provides assistance in real time to the user in relation to the physical and motor characteristics, avoiding and/or reducing the risks associated with incorrect posture or incorrect execution of the exercises , and achieving the best results and benefits during the activity? sporty. Advantageously, the present invention can be employed to assist and/or assist people with disabilities? motor skills during training and allow them to achieve the best results in relation to their abilities? residual.

The purpose ? achieved by means of a customizable apparatus useful for assisting the user during training.

Advantageously, the? adaptability? of the present invention allows people with disabilities? to carry out the exercise correctly by means of assistance in real time and at the same time to achieve the best desired results without having to perform for? movements not suited to their abilities? motor. There? ? particularly advantageous for carrying out activities? sports in the absence of qualified personnel or when, for the reasons set out above, access to gyms or specialized centers? limited.

DESCRIPTION OF THE FIGURES

The characteristics of the present invention will be clarified by the detailed description of its preferred, non-limiting exemplary embodiments and configurations with reference to the attached figures described below. The figures in the following description are only some of the forms of the present invention and those skilled in the art can derive others without any inventive work.

Figure 1 shows the electronic apparatus in accordance with the present invention, to assist the user in real time during the execution of an exercise which involves the use of an Olympic barbell, comprising:

- parts of the device case (1 and 2) joined by means of a fine-pitch thread;

- o-ring (3 and 4) for anchoring and sealing the apparatus to the balance wheel and cushioning shocks during use;

- electronic board (5) on which at least one motion sensor is installed; at least one microcontroller; at least one data management and archiving system;

- feeding system (6);

- appliance on and off button (7) outside the case.

Figure 2 shows the phases that characterize the snatch (Olympic snatch) in which the barbell with its load is moved from the ground position to the overhead position with the performer completely erect. In the same figure on the right side? represented the trajectory of the balance wheel obtained by analyzing the output data from the movement sensors of the electronic apparatus by means of the hybrid system comprising matrix calculation and artificial intelligence in accordance with the present invention. The said trajectory? been expressed mathematically, identifying the parameters, specific to the individual user, which made it possible to define what was the best trajectory that the user, in relation to his physical and motor characteristics, could achieve. In the graph shown in the figure, the trajectory was processed as a vector with three components and the speed data was associated with it. and acceleration in order to evaluate the quality? and the correctness of the execution of the exercise and to transmit to the user comments regarding the errors committed in the case of incorrect execution. ? in fact, it is known to those skilled in the art that the important parameters to be monitored in order to correctly complete the snatch are the trajectory and the acceleration.

Figure 3a represents a barbell with a total load of 60 kg (two plates of 20 kg each and the 20 kg Olympic barbell) on which ? installed the electronic apparatus, in accordance with the present invention. The tool cos? configured to assist the user in real time during the execution of the exercise ? consisting of:

- the electronic apparatus (8);

- barbell disc locking collar (9)

- the balance wheel (10) and the discs (11);

- the smartphone (5) useful for managing the apparatus and viewing the feedback in real time, by applying the evaluation of the exercise and the overall summary of the correctness and efficiency of the exercise at the end.

Figure 3b shows a detail of the electronic apparatus installed on the balance wheel and broken down into its main parts (8) described in Figure 1, an exemplary but non-limiting system of wireless communication and display via tablet of the results achieved during training (12 ).

Figure 4 shows:

- the reference trajectory for the snatch exercise of the balance wheel (continuous black curve) obtained from the analysis of the n x m matrix, memorized by the firmware on the electronic device, which shows the physical quantities such as: acceleration, angular momentum and magnetic field , useful for building the motion reference function and for assisting the user;

- the trajectories extrapolated from the matrix resulting from the output data from the movement sensors, installed on the users? electronic device, during the execution of the snatch performed correctly (solid gray curve) and incorrectly (dashed gray curve).

Figure 5 shows a flowchart which schematises an exemplary but not limiting form of operation of the electronic apparatus in accordance with the present invention. A preferred but non-limiting configuration of the apparatus for assisting the user during training comprises three units? functional: user, application and artificial intelligence. The paths of the three units? functional are dependent on each other but their startup is not ? contemporary.

As can be seen from the figure, the processes of the application, comprising three phases, will start after the user has started the execution of the movement; in the same way the artificial intelligence will intervene? in the analysis of the movement data after the application will have? received movement data.

In Figure 6 ? represented the sequence of movements that make up the step of aerobic gymnastics turn step. In detail, using a step as a useful tool for carrying out said step and the electronic apparatus of the present invention, the user performs n = 6 aerobic gymnastic movements and the feet assume a total of n = 8 positions. In the figure, the letter d and s represent the right foot and the left foot respectively, while the numbers indicate the sequential order of the movements. The correctness of the pitch was monitored by the A.I. by analyzing the output data from at least one motion sensor integrated into the users' shoes.

Figure 7 illustrates for the three displacement axes (x, y and z): the measurements of the displacements (ordinate axis), obtained by processing the output data from the movement sensors, as a function of the 6 movements (abscissa axis) which constitute the turn step, represented in Figure 6. In detail, the continuous curves represent the movements of the right foot, while the dashed lines those of the left foot. The movements are recorded during the execution of said step by integrating the electronic apparatus of the present invention in the shoes worn by the user.

Figure 8 shows, by way of example but not in a limiting way, the use of the apparatus in accordance with the present invention for managing a virtual step choreographic course. The users participating in the course, identified by a user ID from 1 to 6, wear shoes on which ? At least one motion sensor has been integrated, included in the electronic apparatus, useful for assisting them during training in the absence of qualified personnel in the room.

The screen (8) installed in the hall allows users to view general warnings, corrective warnings, and the choreography to be performed in real time. The reproduction of this choreography takes place by means of an avatar which replicates the sequence of steps recorded remotely by the coach himself.

Each user during? Training will be able? receive in real time on the screen, in the box identified by your ID code, or by means of the megaphone (9) any corrective communications, and at the end of the lesson it will come? projected for each ID the summary report and the score relating to the performance achieved during the execution of the choreography.

The screen ? connected to a pc on which ? implemented?A.I. (7) which analyzes, processes, monitors and compares the data output from the motion sensors with the reference curves and matrices in order to provide suggestions and corrections to users in real time.

In Figure 9 the five positions assumed by the upper limbs of the boxing athlete during the execution of a combination of three punches are represented by means of an avatar. The first shape in the figure shows the origin of the x and y axes fixed in the rest position.

In detail, the five positions are indicated by the numbers (1?5) and the right or left upper limb involved with the letters d and s, respectively.

The combination of hits ? made up of:

1) left jab (0s, 0d - 1s, 1d - 2s, 2d)

2) left jab (3s, 3d ? 4s, 4d)

3) right direct (5s, 5d).

Figure 10 shows the graphs obtained during the execution of the boxing exercise depicted in the previous figure.

The movement data, represented in Figures 10A and 10B, are obtained by integrating the electronic apparatus of the present invention, comprising at least one movement sensor, inside the gloves used by the user during the performance of the exercise. The electronic device by means of the A.I. processes the data coming from the movement sensors, traces the trajectory of the gloves and analyzes the movements along the movement axes.

In detail, the movements of the right (Figure 10 A) and left (Figure 10 B) glove along the x axis (solid line) and the y axis (dashed line) over time are shown.

Figure 11 shows the speed trend? recorded by the electronic apparatus of the present invention during the execution of the triple stroke. In detail, the speed? of the right glove along the x axis (solid black line) and the y axis (dashed black line); and of the left glove along the x-axis (solid gray line) and the y-axis (dashed gray line).

EXAMPLES

EXAMPLE 1

Assembly process of the electronic device

A preferred but non-limiting embodiment (Figure 1) of assembling the electronic apparatus in accordance with the present invention has provided, as shown below:

- the insertion of the rechargeable battery and the electronic card, including at least one movement sensor and the microcontroller on which it is? integrated the A.I., in the case anchored with tubular seals to the balance wheel;

- the closing of said extremity? of the case with a second case, called external case, by threading for screwing up to the stop;

- the final locking of the two enclosures by means of a second tubular gasket;

- the connection of the electronic card to the rechargeable battery by means of the external switch located at the end? of the custody, in order to allow the activation of the electronic device by the user.

The dimensions of the case were optimized so as not to alter the dimensions of the balance wheel and not to interfere with the contact of the tool with the floor even in the absence of loads mounted on it. The case used has a diameter of 60 ? 80 mm, preferably 60 ? 70mm, most preferably 65mm.

EXAMPLE 2

Electronic device useful for assisting athletes in real time during the execution of the snatch.

The electronic apparatus, (prepared as described in example 1) useful for assisting and correcting the users in real time during the execution of the snatch exercise (Figure 2), was installed at the side of each athlete's barbell ( n = 2) loaded with 40 Kg (Figure 3).

Users activated in the ?Athlete? of? the application the mode? ?Training?, they chose the exercise ?Snatch? and activated the electronic device using the side button 3 of the device (Figure 3).

The switching on of the electronic device allowed the connection of the same to the application, and therefore the activation of the movement sensors and the transmission of the data necessary for the operation of the electronic device via Bluetooth.

The users carried out the set-up of the apparatus by executing the vocal indications of the application by grasping the balance wheel and positioning it in the following positions: i) on the ground with arms extended, ii) at the height of the knees with legs extended, iii) at the ?hip height with legs and torso fully extended, iv) overhead with arms fully extended.

Artificial intelligence through this set-up pot? identify the physical and motor characteristics of the user and adapt the reference curve to the user (Figure 4), stored by the firmware on the electronic device.

This setting operation was requested because? it was the first time that the athletes were using the electronic apparatus to carry out the snatch; the following times it was not necessary to carry out this preliminary step.

The processing and analysis of movement data, useful for assisting and correcting users in real time during the execution of the exercise, took place by exploiting the hybrid system including artificial intelligence and matrix calculation.

The parameters useful for correcting the user in real time, evaluating the correctness and efficiency of the snatch exercise were: trajectory, acceleration and quantity? of motion.

? it is known to those skilled in the art that during the execution of the snatch the trajectory of the balance wheel must be as possible vertical, especially in the initial part of the pull, trajectory stretch between knee height and hip, where a common mistake that is committed? the ?bulging? or the deviation from the vertical trajectory due to the blow given by the hip.

The barbell, especially if loaded with an excessive load, is lifted by the athlete not thanks to the strength or the pull of the arms, but by exploiting the thrust of the hip, accumulating a certain amount of weight. of motion on the lifted load.

The quantity? of motion? an energy parameter that allows you to evaluate the? maximum height that could? reach the barbell. If this lift? less than the maximum squat that pu? make the? athlete, the same will not succeed? to complete the joint under the balance wheel and then the lifting. This amount? of motion is always accumulated by the athlete during the pulling phase, where the acceleration must be maximum.

The analysis of the quantity? of motion performed by artificial intelligence allows us to quantify the maximum weight that the athlete would be able to lift, and at the same time the loss of efficiency of the movement as the weight increases.

To these parameters (trajectory, acceleration and momentum) tolerance intervals (evaluation criteria) were assigned and transformed into reference mathematical constraints in order to provide the athletes with: useful corrections in real time to perform and complete exercise correctly; and subsequently the evaluation of the performed exercise.

The output data from the movement sensors of the electronic apparatus during the execution of the snatch, corresponding to the aforementioned parameters, generated an n x m matrix.

Real-time artificial intelligence:

- extrapol? from the n-row and m-column matrix, stored by the firmware on the electronic device, the information that constitutes the reference function of the movement. In which the time measurements in steps of about 7 ms were reported on said lines and the physical quantities measured by the movement sensor were reported on said columns, including: acceleration, angular momentum, magnetic field;

- carry out an attenuation of the noise of the input signals coming from the motion sensors through the integrated Kalman filter;

- carry out operations of integration and interpolation between the vectors of the input matrix obtaining information regarding the trajectory of the balance wheel, the distribution of acceleration along the path of the balance wheel, and the quantity? of motion;

- do you think? a correlation between the trajectory of the balance wheel and other quantities of interest such as acceleration and quantity? of motion (Figure 5);

- compar? the information obtained from the analysis of the reference matrix with those extrapolated from the matrix resulting from the movements performed by the athletes during the execution of the snatch (Figure 4);

- warn? through the voice command of the application, as an instructor present during the execution of the exercise would have done, users can accelerate the movement when necessary in order to increase the percentage of success of the exercise;

- returned? an evaluation score of the exercise on the screen of the device used, respectively equal to 0.5 for user A, who performed the exercise incorrectly; and equal to 0.8 for user B, who had performed the exercise well.

At the end of the snatch, the users viewed the overall summary of the correctness and efficiency of the exercise on the display (5) of the smartphone (Figure 3).

EXAMPLE 3

Operating procedure of the hybrid system

A mode? operation of the hybrid system involved the following steps:

- real-time application of the Kalman filter to the raw data coming from the motion sensors in the form of a matrix with n rows and 9 columns;

- processing of filtered data;

- derivation of the reference quantities necessary to fully describe the movement performed;

- creation of a matrix consisting of n rows and 15 columns;

- comparison by means of artificial intelligence of said matrix with the reference matrix, memorized on the filing system in relation to the type of exercise to be evaluated chosen by the user; wherein said reference matrix was adapted to the physical and motor characteristics of the user by means of an initial setting;

- comparison of the two matrices (the reference one and the one obtained by processing the movement data performed by the user) in real time during training;

- sending in real time of: vocal alerts by the AI through the user-device interaction device if differences are recognized between the reference movement and that performed by the user, corrections, assistance and advice to the user to correct the wrong movements and finish the exercise efficiently;

- sending visual messages by means of an avatar at the end of the exercise to highlight and/or represent the movement and the phases of it in which any mistakes have been made;

- attribution of an evaluation score of the exercise by the A.I;

- request by means of the application to the user to restart the exercise or switch off the device.

EXAMPLE 4

Application of the electronic apparatus for the analysis of a turn step.

The electronic apparatus of the present invention was used to evaluate in real time the execution of an aerobic gymnastic step. In detail, the step was the turn step (Figure 6) and it ? consisting of a sequence of 6 movements performed using a step. During these movements, the feet assume 8 different positions, respectively 4 for the right foot and 4 for the left foot.

The output data from the motion sensors, integrated for example in the user's shoes, were analyzed by means of the hybrid system based on artificial intelligence and matrix calculation. The apparatus cos? configured it allowed to determine the measurements of the movements during execution along the three axes (x, y, z) of movement (Figure 7); the A.I. compare the data obtained with those of reference, it evaluated? correctness in relation to the physical and motor characteristics of the user, and send? real-time corrective alerts when necessary.

EXAMPLE 5

Electronic device for the management of a virtual course of aerobic gymnastics.

A preferred but not limiting embodiment of the electronic apparatus in accordance with the present invention is the management of a virtual training course of step.

The device, useful for providing the single user with assistance and feedback in real time on the correctness of the steps taken and on the performance of the training carried out, was integrated into the shoes of the 6 users participating in the virtual step course and thus came configured:

FIRST STEP

Memorization of the sequence of the reference steps of the workout

The instructor of the step course, how? known to art experts, he was not present in the room during the virtual lesson, but remotely recorded? the lesson that was later projected to users via an avatar:

- wear? the shoes in which part of the electronic apparatus comprising at least one movement sensor was previously integrated;

- active? in the section ?Instructor/Coach? of? the application the mode? storage ?Store workout?;

- run? correctly all the steps that made up the sequence foreseen for the virtual lesson using a step as a training tool;

- in real time the electronic device through the artificial intelligence process? the data coming from the instructor's movement sensors, attributing a value of 1 (exercise performed correctly) to the sequence of steps performed;

- at the end of the execution, the instructor via the ?Save training? of the application turned off the motion sensors (n=2) of the electronic device at the same time, saved? the data processed by artificial intelligence as a reference model on the cloud server designating the matrix obtained as a reference matrix, and attributes? to the file the name ?Corso_step_virtuale_classe1?.

SECOND STEP

Preparation for virtual training (Figure 8)

- The users about to participate in the virtual step course wore sneakers on which at least one movement sensor included in the electronic apparatus of the present invention was integrated.

To the art expert? in fact, it is known that, during an aerobics workout that involves the use of the step, the main cause of an incorrect execution of the sequence of steps, errors and accidents and/or injuries is? linked to the incorrect positioning and/or movement of the lower limbs, in particular of the feet on the tool, therefore in order to avoid what has been said ? It is necessary for users to be assisted in real time by monitoring the correct position of the lower limbs.

- The users, wearing these shoes with at least one integrated motion sensor, paired the motion sensors and the PC in the room upon entering the room, then activated their ID by approaching the platform suitable for said connection. This connection allowed the software and the A.I. implemented on the PC to collect the personal data provided at the time of registration / enrollment in the course and updated periodically, including for example weight, height, etc. of individual users of the course, useful data to provide assistance adaptable to the physical and motor characteristics of each one.

- Subsequently, the electronic device, implemented on the PC in the room, activated? the motion sensors of the individual user for communication and transmission of data output from the motion sensors to the A.I.

- Since the virtual course was scheduled to start at a fixed time, the countdown was displayed on the screen in the room five minutes before that time, useful for users to start the preparation procedures for the lesson, including positioning in the vicinity of the course. of the tool.

- 60 seconds before the countdown expired, the following were displayed on the screen: six boxes identified by an ID, one for each user of the course; information relating to the training to be carried out (duration, equipment required and training intensity).

- At the end of the countdown the avatar of the instructor was projected on the screen to replicate the sequence of steps stored in the file ?Corso_step_virtuale_classe1? previously registered by the coach.

THIRD STEP

Virtual training phase

During training, the A.I. process? the data coming from the movement sensors (Figure 8) returning on the screen in the room in real time the feedback inherent to the correctness and performance of the steps performed by the users through:

- a visual and audio signal;

- a line graph for evaluating in real time the coordination and correctness of the execution times with respect to the reference pace memorized on the electronic device; in detail on the graph the reference values, represented by a green line, were compared with the values relating to one's own steps, represented by a blue line.

For example, the following corrective messages were sent during the lesson:

- user 5 interrupt training and decrease the height of the step;

- user 3 place the left foot in line with the right foot;

- user 5 slow down! The steps must be performed in rhythm with the music;

- user 6 controls the movements! Hyperextended left knee;

- user 2 place the feet completely on the step and not just the forefoot;

- user 4 controls the movements! Hyperextended right knee;

- user 1 resume the choreography from the ?basic step? following;

- user 2 start the step ?V step? in the next repetition with the left foot;

At the end of? Training, the electronic device was deactivated and each user visualized? on the screen a summary of the performance and the correctness of the steps taken. Furthermore, the coach shared the summary of the performances achieved by the users during training via social networks; and since said summary was automatically saved on the cloud server, each user through personal credentials also had access to this information subsequently.

EXAMPLE 6

Use of the electronic apparatus during a boxing training

The electronic apparatus of the present invention was used as a non-limiting example to assist users during boxing training.

The movement sensors included in the electronic apparatus were integrated inside the user's gloves; these sensors were positioned in the part close to the wrists in order to avoid breakage following impacts.

Before putting on these gloves, the user selected? from the menu of the application, in accordance with the present invention, the item ?Free boxing training? in order to carry out the recognition of the motion sensors.

The user set: the total duration of the training equal to 19 minutes, the number of rounds equal to 5, the time duration of the single round equal to 3 minutes, and the rest time between one round and the other equal to 1 minute . This setting allowed the electronic device to automatically activate and deactivate the motion sensors during inactivity. of the user and the pauses between one round and another.

Subsequently, the application send? a series of voice commands to the user to identify the physical and motor characteristics, such as, for example, length of the upper limbs and capacity? of arm extension.

The electronic apparatus fiss? the point of origin of the movement (Figure 9), taken as the zero point of reference for the movements of the gloves during the execution of the workout.

Does the user start? training having received from the application the audio command of ?via? and received real-time assistance, corrections and advice to reach the final goal of the training and conclude the exercise successfully.

? known to the experts of the art what are the abilities? that a boxer must develop to achieve the best performance when executing a triple strike: to assign fast strikes that maintain a direct trajectory. Therefore, in order to achieve this goal, the movements must be concentrated along the x axis, i.e. along the trajectory that connects boxer 1 with the second boxer (opponent) or with the bag useful for training. The efficiency of the movement, therefore an exercise carried out correctly and with good results, requires in the case of the execution of direct hits that the trajectory is precise, avoiding movements along the y and z axes, and that the speed? of the blow is concentrated exclusively on the x-axis in order to maximize the effect of the blow.

During real-time training, the electronic device uses the movement sensors integrated in the user's gloves and the A.I. implemented in it traces? the trajectories of the movements performed and evaluated? the quality? of movements by comparison with stored reference data. These operations allowed to provide assistance and corrections so? that the user could improve the performance of the exercise by concluding it successfully in relation to his physical and motor characteristics. In fact, step 4 described above allowed the electronic device to identify any disabilities? of the user and therefore the maximum achievable performance for said exercise.

Claims (11)

1. Electronic device to assist, correct and evaluate in real time the execution of a physical exercise configured to adapt to the user?s physical and motor characteristics and to interact with the user to allow him to perform a movement correctly independently, characterized by the fact that it includes: - at least one motion sensor capable of acquiring the reference data relating to the user's motion; - a data transmission and management system, for exchanging and archiving said reference data and information on the correctness of execution of the exercise; - at least one display device suitable for displaying information to assist and correct the user in real time during the execution of the exercise, and for displaying movement analysis; - at least one microcontroller connected to the movement sensor, to the data transmission and management system, and to the display device to send the user feedback in real time on the correctness of the execution of the exercise and corrective warnings, comparing said reference data related to the user?s movement acquired and a reference model for the user?s movement corresponding to said exercise performed correctly. 2. Electronic apparatus according to claim 1, wherein - the motion sensor ? capable of being integrated in the tool and/or in one or more? exercise clothing, and in which - said reference model comprises a matrix of reference data, corresponding to the exercise performed correctly and adapted to the physical and motor characteristics of the user. 3. Electronic apparatus according to claim 1 or 2, wherein the motion sensor comprises: at least one of gyroscope, accelerometer or magnetometer, and/or a combination thereof, and wherein the gyroscope and/or accelerometer and/or or the magnetometer are suitable for acquiring the reference data relating to the user?s movement in real time during the execution of the exercise. 4. Electronic apparatus in accordance with any one of the preceding claims, wherein the data transmission and management system connected to said movement sensor, microcontroller and display system comprises: - a wireless data transmission module to exchange information and said reference data in real time with the user during the execution of the exercise, - a unit? of memory for storing said reference data and said reference pattern for a given user movement. 5. Electronic apparatus according to any of the preceding claims, wherein the display system is chosen from the group including: screen, TV, computer, tablet, smartphone capable of sending the user audio/visual commands to allow him to perform a movement correctly. 6. Electronic apparatus in accordance with any one of the preceding claims, wherein the microcontroller is programmed using artificial intelligence algorithms to evaluate the quality? and/or efficiency and/or correctness of execution of the exercise in real time. 7. Electronic apparatus according to claim 6, wherein said artificial intelligence algorithms are able to construct said reference model adaptable to the capabilities? physical and motor residuals of the user. 8. Electronic apparatus in accordance with any one of the preceding claims, wherein the microcontroller is suitable for memorizing the reference model of the user's movement during the execution of said physical exercise carried out in optimal condition, to set it as a reference model. 9. Electronic apparatus in accordance with any one of the preceding claims, wherein the microcontroller is programmed to process the reference data output from said movement sensors, to derive the reference parameters for describing the predetermined movement, and to compare them with said reference model for the movement performed. 10. Electronic apparatus in accordance with any one of the preceding claims, comprising at least one control instrument operable by the user to activate or deactivate said movement sensors. 11. Method for assisting and/or correcting and/or evaluating a user in performing a physical exercise, characterized by comprising the following phases: - identification of the benchmarks of said physical exercise, - sending of audio/visual commands for the initial setting useful for adapting the reference model of said physical exercise to the characteristics and/or ability? physical and motor residuals of the user, - acquisition of reference data representative of a user?s movement, when the user performs said physical exercise, - projection by means of an avatar of a sequence of exercises, representative of a reference model for the user?s movement during a virtual training course, on a display device, - real-time comparison of said reference data representative of the user's movement with a reference model for the user's movement corresponding to said correctly performed physical exercise, - real-time transmission of audio/visual alerts to the user with information to correct the execution of the exercise and/or feedback on the quality of the exercise of the movement performed, depending on the result of said comparison, in which the user, to perform the sporting exercise, wears a garment and/or uses a tool on which ? integrated at least one motion sensor, - sending visual messages by means of an avatar at the end of the exercise to highlight and/or represent the movement and the phases of it in which any mistakes have been made.