FR2885531A1 - Sportsman training assistance system for use during e.g. golf practice, has wireless link for transmission of radiolocation data towards golf cart, and driving unit to drive camera based on radiolocation data - Google Patents

Abstract

The system has a global positioning system (GPS) receiver, utilized by a sportsman, delivering radiolocation data. A wireless link (13) is provided for the transmission of the radiolocation data towards a golf cart (12). A driving unit is provided for driving a camera (15) that is associated to the golf cart based on the radiolocation data. The direction, focus and/or the zoom of the camera on a target e.g. sportsman, are accomplished by a calculation of the relative position of the target with respect to the position of the camera.

Description

2885531 1

  Training aid system for at least one sportsman and corresponding equipment.

  FIELD OF THE INVENTION The field of the invention is that of sport, and in particular that of the training of one or more persons in the practice of a sport. the context of sports education: one-to-one and two-to-one lessons and group lessons, which bring together a larger number of athletes.

  The particular course allows a faster progression of the sportsman, but has the disadvantage of presenting a high cost.

  In group classes, on the other hand, the cost is lower, but participants play (or are examined) less often, and therefore progress less quickly.

  There are also simulators for home sports (English training), possibly assisted in real time or delayed time via the Internet for example.

  A major disadvantage of such home courses is that they are generally not suited to the level of the athlete, and therefore do not allow him to progress.

  OBJECTIVES OF THE INVENTION It thus appears necessary to find an intermediate solution between the group classes and the private lessons, to overcome these disadvantages of the prior art.

  Thus, it is an object of the invention to provide a new technique of assisting the training of an athlete allowing one or more athletes to improve their technique or tactics of play.

  Another object of the invention is to provide such a technique which is inexpensive and easily accessible to athletes.

  The invention also aims to provide such a technique that is simple to implement and space-saving.

  4. ESSENTIAL CHARACTERISTICS OF THE INVENTION These objectives, as well as others which will appear thereafter, are attained by means of a system for assisting the training of at least one sportsman implementing means radiolocation.

  According to the invention, such a system comprises: first radiolocation means equipping at least one sportsman, delivering radiolocation information; first means for transmitting radiolocation information to third party equipment; means for controlling at least one camera associated with the third-party equipment, according to the radiolocation information.

  Thus, the invention proposes a new system for assisting the training of one or more sportsmen, based on the use of radiolocation means equipping the sportsman (s) and a shooting device. , for example a camera, allowing the athlete (s) to study and analyze their technique in order to assess themselves and progress more quickly.

  The camera can in particular follow and adapt quickly to the movements of an athlete, thanks to the radiolocation information from the first means of radiolocation.

  The radiolocation information comes from, for example, the European Galileo system, the American Glotel Positioning System (GPS), or the Russian Glonass system (registered trademarks).

  Such a device is for example associated with a post supporting a tennis net, a caddy or a golf car, a ski polisher's shoe, a central equipment recording game information, etc. Advantageously, such a system comprises means for measuring and processing at least one sound information, intended to be taken into account by the control means.

  The control means can thus change the orientation of the camera, for example to move towards another athlete, according to at least one sound information; a voice command from an athlete asking the camera to turn towards him, the noise caused by the impact of a bullet during a shot or a rebound on the ground, etc. Thus, a single camera can be used to track the movements of several sportsmen, the camera steering means to another sportsman according to at least one predetermined signal, such as for example a sound signal from the athlete. impact of a ball, a signal corresponding to the end of a predetermined time range, etc. Preferably, the radiolocation information is used for at least one of the operations belonging to the group including setting the pointing, direction, focus, and / or zoom of the prer device. views.

  This provides a precise orientation of the camera according to the movements and movements of the athlete or athletes, which then allows to obtain accurate information for the analysis of the technique and tactics of each game athletes.

  According to a first variant embodiment, the third equipment comprises means for determining the orientation of said one or more cameras with the aid of an inclinometer and / or a compass.

  In this case, the axis of the camera has a? reference position, for example horizontal with a known reference orientation, and its orientation can be determined in real time using an inclinometer and / or a compass.

  According to a second variant embodiment, the third equipment comprises second radiolocation means, and means for determining the orientation of the camera (s), from data supplied by the second radiolocation means and radiolocation information transmitted by the first transmission means.

  According to this variant, the camera (s) is oriented in real time, the orientation of the device (s) being determined by calculating the position (s) ( s) relative (s) athlete (s) in relation to the (or) position (s) relative (s) device (s) of shooting determined (s) through second radiolocation means.

  Advantageously, the third-party equipment also comprises recording and / or visualization means and / or means for processing the video and / or audio information delivered by said cameras.

  These recording means comprise, for example, a unit for storing videos, images, sounds, etc. Thus, an athlete, for example a tennis player, can watch a match after playing, or ask a coach to watch it, to be able to study and improve its gaming technique.

  The third-party equipment can also cooperate locally with an integrated or remote screen for viewing the sequences of shots. An integrated screen may be particularly useful in the practice of golf where, between two shots, the player has time to watch the sequence. It may also be useful to have a screen locally to be able to roll out prerecorded sequences relating to the golf course and describing each hole (instead of the succinct paper medium presenting each hole).

  The means for processing the video and / or audio information comprise a microprocessor, for example of the DSP (digital signal processor) type, preferably associated with an image processing software, providing data allowing a fine analysis of the sportsman's technique.

  In addition, the audio information processing means allow an athlete and / or a trainer to recognize the type of shot is made: topper, scraped, blow in the air, escalope, etc. Preferably, the third-party equipment also comprises second means for transmitting information to a central unit.

  Such central equipment is for example a central computer (central PC) for collecting and centralizing game data from one or more players.

  The first and second transmission means use, for example, wireline or radio frequency links for exchanging information between the athlete (s), the third-party equipment (s) and / or the central equipment.

  These means of transmission can in particular exchange this information in real time.

  Preferably, the first radiolocation means deliver at least one of the data belonging to the following set: data relating to the position of at least one of said sportsmen; data relating to the distance traveled by at least one of said athletes; data relating to the speed of movement of at least one of said sportsmen.

  It is thus possible to define game statistics, and to memorize the different actions performed by at least one athlete during a game.

  Advantageously, the first radiolocation means and the first transmission means co-operate with an input interface for recording and / or displaying data relating to the sport performed by the athlete (s).

  Such an interface may for example display an expert system type help based on the data history, and transmit this data (or collect this data) to at least one of the following equipment: third-party equipment, central equipment , an interactive terminal collecting information on wind speed and / or orientation, etc. The training aid technique for at least one athlete is then based on the use of statistics on game data and on position-based, distance or GPS-type displacement data, Galileo, Glonass (marks filed).

  Preferably, the third-party equipment delivers information on the performance of the athlete (s) based on at least one of the following: data transmitted by the input interface, information from the device (s) shooting, information from a weather station.

  This information can also come from a central equipment, especially in the case where the third-party equipment comprises second means for transmitting information to a central equipment.

  Advantageously, such a system also comprises means for simulating the position of at least one of the sportsmen.

  These simulation means include a drive belt mounted on cylinders.

  Such a system may also include means for verifying the position of the athlete (s), for example using a pressure sensor positioned on the front tongue and / or the insole of at least one shoe. and a light.

  These means of verification of the position of the athlete allow an athlete to check, in the context of an application to the practice of skiing, whether the support on the front of the skis is sufficient.

  The invention also relates to sports equipment comprising first radiolocation means delivering radiolocation information, and first means for transmitting to a third party equipment radiolocation information, so as to drive at least one camera associated with third party equipment, depending on the radiolocation information.

  The invention also relates to third-party equipment for training at least one corresponding sportsman.

  5. List of Figures Other features and advantages of the invention will appear more clearly on reading the following description of a preferred embodiment 3, given as a simple illustrative and non-limiting example, and the accompanying drawings. , among which: FIGS. 1A, 1B and 1C show three examples of implementation of the training aid system for at least one sportsman according to the invention; FIGS. 2 and 3 more particularly illustrate the collection or downloading, at a central equipment level, of data originating from or destined for a data entry terminal equipping at least one sportsman of FIGS. 1A, 1B and 1C.

  6. DESCRIPTION OF AN EMBODIMENT OF THE INVENTION 6.1 GENERAL PRINCIPLE The general principle of the invention is based on the use of first radiolocation means placed at the level of at least one sportsman (on the sportsman or his equipment ), and the use of radiolocation data transmission means obtained (before or after treatment) to a third party equipment, by a fixed link or radio.

  More specifically, the system according to the invention is based on the use of one or more cameras, which accurately track the movements and movements of the sportsman or sportsmen thanks to rad iolocation information transmitted to the third party equipment.

  According to the preferred embodiment of the invention, the cameras are cameras, and the third equipment includes second radiolocation means such as pointing (direction, focus, zoom) of a camera on a sportsman is done by calculating the relative position of the athlete, determined by the first radiolocation means, with respect to the position of the camera, determined by the second radiolocation means.

  The camera can in particular be associated with one or more image processing software, thus allowing the recording and processing of the video and / or audio data obtained to accurately analyze the sportsman's technique.

  The driving means of at least one camera may especially take into account sound information from the game or an athlete to control the orientation of the camera.

  It can thus be seen that the use of radiolocation information for driving at least one camera device according to the invention is particularly inventive, since this use is less demanding in terms of the optics of the device and the software. image processing that the pointing techniques of the prior art, and thus allows to maintain the pointing of the camera even if an obstacle is interposed between the device and the target.

  Indeed, conventional pointing systems, used to orient a camera on a moving target, for example a motorized web camera, and generally using image processing in detecting and predicting the movement of the main subject, are particularly sensitive to the lighting, the contrast of the main subject, the distance, etc., and do not keep the score if an obstacle intervenes between the target and the camera.

  Thus, the invention in this preferred embodiment makes it possible to analyze the position of a moving body in order to determine whether the action performed is adequate. The processing of the information can be done in real time if the collected data is transmitted in real time to a treatment center, or in deferred time if the treatment is carried out in the exercise, ie say at the end of a tennis match, a golf course or a ski trip for example.

  It is important to note here that the radiolocation devices, such as GPS, for example, are now very small, therefore small and inexpensive.

  6.2 Examples of Implementation of the Invention Three examples of implementation of the training aid system for at least one sportsman according to the invention are presented with reference to FIGS. 1A, 1B and 1C.

  In these examples, it is considered that the sportsman (s) 11 are (are) equipped with first radiolocation means, for example a GPS receiver, and first means of transmission to a third-party equipment 12. radiolocation obtained by the GPS receiver, via a fixed link or radio 13.

  The third equipment 12 is in particular equipped with a camera 15, oriented by control means taking into account the radiolocation information obtained, and in particular the position of the athlete.

  The third equipment 12 also comprises means for processing the video and / or audio information delivered by the camera 15, for example using a microprocessor or a DSP, second transmission means to a target 11, and / or to a central equipment 16, data (video data, audio data, radiolocation information, ...) via one or more fixed links or radio 13 and 14.

  Here we mean by target the athlete or an accessory equipping the sportsman: a garment, a tennis racket, a golf club, a ski boot, ...

  In these exemplary embodiments of the invention, the third equipment 12 furthermore comprises second radiolocation means, for example a second GPS receiver.

  Thus, according to the invention, the pointing, the direction, the focus and / or the zoom of the camera 15 on the target 11 is done by calculating the relative position. the athlete 11 with respect to the position of the camera 15. Consider here the case where the axis of the camera 15 has a known reference position, it being understood that in other cases it may be provided with an inclinometer, a compass and know the north orientation at GPS points to calculate an offset (offset) in site and azimuth.

  It can be considered in particular that the relative position of the target 11 with respect to the camera 15 is accurate, since, the two devices being close to each other, the GPS errors cancel each other out.

  6.2.1 Application to golf practice 2885531 10 As illustrated in FIG. 1A, the invention applies in particular, but not exclusively, to the practice of golf, the goal then being to record each stroke made on a golf course .

  The steerable camera 15 is, in this example, associated with the golf caddy or the cart (third-party equipment 12).

  According to the invention, each sportsman 11 transmits (manually or automatically) his position during a shot, given by radiolocation information from the GPS receiver, to the third equipment 12, so that the camera 15, under control of an algorithm included in a microprocessor, is oriented in focus and zoom to the athlete 11, and records each shot played by the golfer 11 on a storage unit, for example a key 1JSB (registered trademark).

  Indeed, as indicated above, the third equipment 12 includes means for recording video and / or audio information, in particular for recording, before or after treatment, each shot played by the player 11, and possibly the noise generated by an impact on the ball, giving an indication of the stroke played: for example tossed ball, scraped, airshot, or escalope.

  It is also possible to record information on the course, such as the coordinates of the course, and transmit them to the control means of the camera (this information is for example used for the calculation of distances and for orientation by the compass) .

  The analysis of the game technique can thus be carried out in real time by transmitting the game data recorded to a player or a sedentary monitor, for example at the central equipment 16 located in a clubhouse, or by analyzing the game. even the game data after the game.

  Such a sedentary player or monitor can notably add tips and corrections to the information recorded using a graphics tablet, a touch-up software, etc.

  According to a preferred embodiment of the invention, the player 11 (or possibly the third party equipment 12) is equipped with an input terminal 17, also called an input interface, incorporating the GPS receiver and means for transmission on link 13 (and possibly on link 14).

  Such an input terminal 17 makes it possible, in particular, to start the video recording and radiolocation information transmission sequences, to record or display the game data, and to furthermore propose an online help to the player 11, to expert system type, based on the player's performance history 11.

  According to a first mode of operation, the data of the input terminal 17 are transmitted to the central equipment 16, located for example in a clubhouse, directly or via the third equipment 12.

  According to a second mode of operation, the input terminal 17 is connected locally or via an Internet type network to a terminal. interactive connection to which other equipment is connected, for example a weather station, a GPS antenna, or a network antenna, and exchange data with this interactive terminal.

  The input terminal 17 allows for example to display ;; information relating to the quality of the GPS reception, the ambient temperature, the battery level, the time, the athlete's heart rate, the different languages available, or storing geolocated data (coordinates) of the course.

  In a more complete variant of the input terminal 17, the latter notably makes it possible to enter or display information relating to the path: automatic detection of a start of a hole, display of the name of the path, total distance of the hole, level of normal difficulty (in English), color of the departure corresponding to the handicap, distance of each blow ...

  It also allows to enter or display at least certain; information to advise the athlete: nature of the terrain where the stroke was played (alley, tall grass, sand pit respectively fairway, rough, bunker 2885531 12 English), club used for each shot, distance remaining to the green, direction of the green, correlation of the golfer's position relative to the terrain ^ from a map or digital terrain model) to determine the position of the feet (flat, uphill), distance to the particular points (distance to the bunker , distance to the water hazard, distance to the theoretical points of the ideal course, points to 135 meters), expert system (help button advising the golfer on the type of club to use for each shot, congratulations after a stroke or a hole), ...

  The terminal 17 can still enter or display information to evaluate the level of the athlete: penalty shots, balls lost, number of shots in progress on the hole, number of final shots played on the hole, number of shot total on the course, time for each hole, actual playing time, time spent on the course, walking distance completed, waiting at each hole, virtual classification (handicap) at the end of the course, deactivation of certain functions in competition, button alert, voice functions, USB interface, recording the sound of the ball when typing, special data (type of balls, brand and type of clubs), video storage (possibly on USB stick), ...

  Collection or downloading at the level of a central unit 16 information from each camera 15, and / or each terminal 17 (game data and positions), and / or various sources such as a weather station 18 (information wind speed and wind direction for example) is illustrated in Figure 2. This collection or download in particular allow to establish a complete information 21 on performance and playing conditions, and thus to establish statistics and comparisons.

  As illustrated in FIG. 3, the communications between the input interfaces 17 and the central equipment 16 are based on the use of a concentrator 31 (hub in English) and a USB 32 serial link. The information from the station 18 are for example transmitted to the central equipment 16 by an RS232 interface 33. The information from the camera is: ransmises in real time by a RTC interface 34.

  The complete information 21 may in particular be accessible locally and printed on a printer 35, or accessible via an Internet network, Ethernet or any other telecommunications system, on an interactive terminal.

  The centralization of the data at the level of a central unit 16 and the processing applied to the data can be carried out directly if I link is established between the athlete 11 (or the third equipment 12) and the central equipment 16, delayed otherwise .

  Such data processing makes it possible, in particular, to identify a player and to observe his technique: reading the player's profile (identity, right-handed / left-handed, statistical history necessary for the help), loading the player's profile data, retrieving the player's data. game data from the terminal 17, retrieval and storage of videos for later analysis (or reading of the USB video key), adding specific data (type of balls, brand and type of clubs), reconstitution of weather data for each shot (direction wind, wind speed, temperature, humidity), statistics of the course for a player (number of ccups played per type of club, distance statistics for each type of club, number of hits played per type of court), grouped statistics / crossed for several players, visualization on screen of the player's strokes on a background representing the course or each hole, virtual ranking of the player (taking into account the handicaps), sto ckage of the player's course, history allowing multiple statistics and generating expert type data, best theoretical course (best hole for each course), etc., some of these functions being accessible only if all the players are equipped with a input interface 17.

  The data centralization system also allows the management of players by the clubhouse: visualization and optimization of the flow of the players, safety of the players, sending of alert by radio link in case of problem, distances between the parts, speed of the parts , waiting time, automatic scorecarding (especially for official competitions), starting hole assignment (1 or 10), optimization of course maintenance according to 2885531 14 actual player displacements, history of parameters to make global statistics by month, by year, ...

  Thus, according to the invention, the use of radiolocation means and a short-range link makes it possible to point the camera at a target autonomously.

  The automatic control of the camera 15 makes it possible in particular to avoid the athlete 11 having to move his cart or cart to a precise position to be able to track his movements and movements, which would slow down the game.

  It may also be noted that a single camera 15 (for example equipped with an optical zoom) on the third-party equipment 12 makes it possible to follow several players 11 on the same course, since the sportsmen play in turn.

  It is thus possible to make the price of a course profitable by using common equipment for the different players.

  Conversely, one can use multiple cameras to follow the same player, 15 so as to reconstruct in three dimensions (3D) the position of the athlete 11 through sophisticated means in post-processing.

  According to another variant of the invention, the training aid system for at least one athlete is based on the use of means for imulating the position of an athlete on a course, for example with the aid of a drive belt on cylinders.

  This variant is particularly advantageous in the case of training outside a golf course, for example on a training ground (practice) where the feet are still flat, which is not representative of a real golf course.

  Thus, the system according to the invention allows to simulate on Ln practice the real conditions of a golf course, and to analyze a posteriori the evolutions of an athlete both on a driving range and on a golf course.

  6.2.2 Application to the practice of tennis As illustrated in FIG. 1B, the invention also applies to the practice of tennis, the aim then being sequences of tennis games.

  In this example, the steerable camera 15 is associated with the net net (third gear 12).

  Since the general principle is already described in relation with FIGS. 1A, 2 and 3, it is not described in more detail in relation to FIG. 1B.

  In this example of implementation of the invention, it can be noted that it is possible to follow the two players of a tennis match with a single camera. In this case, the camera automatically changes the target after each shot of a player based on sound information, for example from noise caused by an impact on the ball. It is preferable that the camera control means know the coordinates of the court to correctly control the camera.

  As described above, according to a preferred embodiment of the invention, the player I 1 (or possibly the third party equipment 12), is equipped with an input terminal 17, incorporating the GPS receiver and transmission means on the link 13 (and possibly on link 14).

  This terminal 17 may in particular be simplified for tennis, in order to limit its weight.

  For example, the terminal 17 may comprise only a few buttons and a few light emitting diodes (LEDs) instead of a display. A label indicating the name of the club may for example occupy the place of the display.

  In this case, the recorded data will be available only after connection of the terminal 17 to a terminal, a central equipment, ....

  As indicated above, the input terminal 17 makes it possible, for example, to display information relating to the quality of the GPS reception, to the ambient temperature, to the level of the battery, to the time, to the sportsman's heart rate, to the different available languages, or to store geolocalised data of the court, that is to say the coordinates of the court (corners, ignes).

  In a more complete variant of the input terminal 17, the latter makes it possible, in particular, to enter or display information relating to the game data: automatic detection and display of the court number, ranking of the opponent 2885531, personal classification, player who served first, start and end of a point, total distance (indication of fatigue), actual playing time in progress and total (indication of fatigue), storage of the GPS coordinates of each exchange, or the entire match, nature the field (clay, ...), current score on the game, the set, or the match, number of points in the match, total number of points, balls awarded, stolen, smashes, aces, bullets let, direct fouls, winning services and winning returns (calculated automatically by analyzing the number of moves played and the score evolution), balls on the line, number of shots per point (calculated automatically according to the sound of the ball). deactivation of certain functions in competition, warning button, voice functions, USB interface, particular data (type of balls, brand and type of racket), ....

  It also allows to enter or display information to advise the athlete, using an expert system (the help button proposes for example a strategy: to net more often, stay in the baseline, watering), congratulations after going back to the score, ...

  As already discussed in connection with FIGS. 2 and 3, and not described in more detail here, the centralization of the data at a central equipment 16 and the processing applied to the data can be carried out directly if a link is established between the sportsman 11 (or via the third party equipment 12) and the central equipment 16, delayed otherwise.

  As previously described, such data processing makes it possible in particular to identify a player and to observe his technique: reading the player's profile (identity, right-handed / left-handed, statistical history necessary for the help), loading the profile data of the player. player, retrieval of game data from the terminal, retrieval and storage of videos for later analysis (or reading of the USB video key), addition of particular data (type of balls, string tension, brand and type of racket), reconstitution of weather data for each exchange (wind direction, wind speed, temperature, humidity), time for each point, time statistics, actual playing time, time spent on the court, total distance traveled, waiting between each point, flights, 2885531 17 number of straight hits or setbacks by the direction of movement, statistics grouped / crossed for two players (which allows for example to estimate the speed of ball by comparing the date and striking position of the first player and the date and the striking position of the second player), statistic of occupation of the terrain zones (time spent in certain areas of the field, in the square on the right, in the left square, in predefined zones), replay on the screen points of the player on a background representing the court, virtual ranking of the player, storage of the player's games, history (victories / defeats for example by type of terrain, weather, covered or outside, number of moves played by type of terrain using various filters, duration of games by type of terrain using various filters, duration of sets, number of sets, tie-breaks, aces, returns winners) ....

  It may be noted, however, that some of these functions are only accessible if all players are equipped with a terminal, and if there is a connection with the central equipment of the club house.

  The data centralization system also allows the management of the players by the clubhouse: visualization and optimization of the real occupation of the grounds, time overrun, changes of untimely courts, sending of alert by radio link in case of problem, short most requested (which therefore require more maintenance), less busy hours per day, per month, or per year, automatic transmission of match results (official competition), ....

  The invention thus allows one or more tennis players to improve their performances by recording and studying the data and statistics for example from a match, which is particularly interesting since the tennis lessons are never performed during a match.

  Moreover, the technique and the strategy in match being different according to the adversary, their analysis requires a particular examination.

  The performances of an athlete using such a training aid system will thus be optimized, since a player can analyze his defects himself or entrust the analysis to a sedentary instructor who may not have followed the game.

  6.2.3 Application to the practice of skiing A third example of application of the invention to the practice of skiing is now presented in connection with FIG. 1C, the purpose being then to record ski video sequences.

  The steerable camera 15 is, in this example, installed or integrated on at least one ski boot (third gear 12), for example on the back of a shoe of a monitor.

  The third equipment 12 includes a GPS receiver, means of transmission to all students of a ski course and to radio terminals (located for example at the ski lifts so as to allow a live data processing according to a pn impérientiel embodiment), a microprocessor and a video / image / sound storage unit.

  The skiers 11 are equipped with a GPS receiver and transmission means retransmitting their position and their callsign to the third equipment 12 to allow the pointing of the camera 15 associated with this equipment 12.

  As indicated above, the control of the camera 15 according to the radiolocation information makes it possible to avoid the fact that the camera is mistaken for a target, especially since a skier is rarely alone on a ski slope.

  Since the general principle is already described in relation to FIGS. 1A, 2 and 3, it is not described in more detail in relation with FIG. 1C.

  In this exemplary embodiment, the radio link of a skier 11 to a camera 15 may possibly be relayed by the radiolocation means (GPS receivers) and the transmission means of the other skiers 11 or third equipment 12, or by radio terminals.

  To reduce the cost of the system according to the invention, the time allotted for radiolocation can be shared by all skiers. It is then possible to define the order of the transmission sequences to avoid data collisions.

  It is also possible to send assignment messages defining for each skier the periods during which they are filmed, and / or to assign different radiofrequency channels to each skier.

  According to the invention, the skier 11 therefore sends his GPS position permanently or intermittently with an indication to the third equipment 12 associated with the camera 15. The camera 15, under the control of an algorithm included in the microprocessor, Oriented in focus and zoom according to the position calculation result made between the GPS position of the monitor shoe and the ski student's GPS position, and records the descent sequence.

  It is also possible to successively follow several skiers with the same camera, for example by selecting an identifier to identify a sportsman. The system according to the invention thus makes it possible to make the price of the course more profitable by self-analyzing its defects, or by entrusting the analysis to a sedentary instructor at the ski school.

  This technique also makes it possible to better compare the technique of the different skiers belonging to the same level of course but with different instructors.

  In a preferred embodiment, at least one skier 11 (or possibly the third party equipment 12) is equipped with an entry terminal 17 incorporating the GPS receiver and transmission means on the link 13 (and possibly on the link 14).

  In this application to the practice of skiing, such an input terminal 17 may for example be integrated into the ski pole. In this case, the display will be small. It can also be a flexible screen mounted on a retractor placed in the handle of the ski pole, and can be deployed outside of it.

  The input terminal 17 makes it possible, for example, to display information relating to the quality of GPS reception, at ambient temperature, at the pressure, at the altitude, at the level of the battery, at the time, at the heart rate Ilu sports, the different languages available, FM reception, advertising or 2885531 20 store geolocalised data of the track, that is to say the coordinates of the tracks, ....

  In a more complete variant of the input terminal 17, the latter notably makes it possible to enter or display information relating to the ski data: automatic detection of the track, display of the track, direction of the track, exit indicator of track and the left and right limits of the track, difficulty of the track (green, blue, red), level of the skier, duration of the beginning at the end of a track, total distance skis (indication of fatigue), actual time of skiing in progress and total (indication of fatigue, calculated automatically by GPS coordinates analysis), time spent in lifts on chairlifts or cable cars (by automatic detection taking into account the distance to the ground and climbing), weather waiting, storage of the skier's GPS coordinates on each track, storage of the skier's GPS coordinates over the entire duration, nature of the terrain (ice, powder, spring), instantaneous speed, maximum speed in a period, dista traversed, cumulative height differences, number of turns per track, inclination of the slope, falls and location, number of turns, indication of the position of the different members of the group, warning button, voice / sound functions (edge alert) and indication of steep slope current or future, useful in case of fog), USB interface, particular data (type of wax, mark length and type of ski, marks of fixings and adjustment), ....

  The input interface 17 also allows to enter or display information to advise the athlete, using a systi; me expert (the help button offers an example of tracks to return to the station, indicates the nearest track, cafes altitude, offers tracks of a chosen difficulty, ...), congratulations after a good schuss, a sequence of turns, evaluation of the risk of falls according to the profile if the fatigue is too important, ...

  The centralization of the data of each terminal at the level of a central equipment 16 and the processing applied to the data can be carried out live if a link is established between the skiers, the kiosks, the ski school or the equipment rental companies. , delayed otherwise.

  As previously described, such a data processing makes it possible in particular to identify a skier and to observe his technique: reading the skier's profile (identity, right-handed / left-handed, statistical history necessary for the help), loading the profile data of the skier. skier, ski data retrieval of the terminal, retrieval and storage of videos for later analysis (or reading of the USB video key), addition of particular data (type of ski and bindings, ski lengths, length of poles, level of setting these fixations), reconstitution of the weather data for each descent (wind direction, wind speed, temperature, humidity, snow), time for each track, statistics of duration (actual ski time, time spent on the ski lifts, weather wait by ascent and total, total distance traveled, maximum speed per track and on the way out, maximum slope, list of tracks made and used, waiting times of others skiers, estimation of the number of left and right turns by analysis of GPS data (radio location information) by track and total, statistics grouped / crossed for several skiers, time and position of the falls and correlation with the terrain model for the slope, statistic of the occupation of the tracks (time spent in certain zones of the tracks, time spent off piste), replay on screen of the points of the skier on a background representing the track, storage of the outputs of the skier, history (various filters), falls by type of tracks, snow, weather, number of turns per exit, duration of the outputs, tracks, number of tracks by exit, maximum speed by track and by exit ....

  Again, it can be noticed that some of these functions are only accessible if all skiers are equipped with a terminal, and if there is a connection with the central equipment 16.

  The data centralization system also allows skiers to manage skiers: visualization of the actual occupancy of runways and runway areas, peak hours (number of skiers going to 2885531 22 off-piste, mailing). 'alert by radio link), most practiced tracks, least busy hours per day, per month, or per year, the most frequent places of falls.

  According to a variant of the invention, the training aid system of at least one athlete is based on the use of means for verifying the position of the athlete.

  Such means comprise for example a pressure sensor, placed on the front tongue of at least one ski boot, and a light indicator, to indicate whether the support on the front of the skis is sufficient.

  It is also possible to use ultrasound-based techniques, combined with an audible or light alarm, to indicate whether the skier's arms are too far behind the center of the ski, or if they are too close to the ski body, or if the skier is too straight.

  Timers related to the feedback of information from a gyroscope placed on at least one ski or shoe are also provided to indicate a turn.

  According to this variant, the nominal position of the skier must be calibrated (taking into account the size and weight of the skier) and the devices set to trigger when one moves too far from the nominal position.

  Thus, the invention proposes a technique for assisting at least one athlete's training based on the use of at least one shooting device oriented according to radiolocation information coming from the radiolocation means. equipping the sportsman.

  It is understood that the three examples of implementation of the invention are illustrative and non-limiting, and that the invention can be applied to any type of sport (eg riding, etc.). also apply to other sectors such as security. For example, several cameras can monitor and improve the security of a guard equipped with radiolocation means transmitting his position to the cameras.

  Similarly, radiolocation means based on GPS receivers have been described in connection with the various figures, but it is obvious that the invention is not limited to this type of receiver, and can operate with any type of receiver. which can provide radiolocation information (Galileo system, Glonass, etc.).

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Claims (15)

  1. A training aid system for at least one athlete (11) using radiolocation means, characterized in that it comprises first radiolocation means equipping: at least one of said athletes, delivering information radiolocation; first means for transmitting to a third party equipment (12) said radiolocation information; means for controlling at least one camera (15) associated with said third-party equipment (12), as a function of said radiolocation information.   2. System according to claim 1, characterized in that it comprises means for measuring and processing at least one sound information, intended to be taken into account by said control means.   3. System according to any one of claims 1 and 2, characterized in that said radiolocation information is used for at least one of the operations belonging to the group comprising the adjustment of the pointing, the direction, the focus, and / or the zooming said camera (15).   4. System according to any one of claims 1 to 3, characterized in that said third equipment (12) comprises means for determining the orientation of said one or more cameras (15), with the aid of inclinometer and / or compass.   5. System according to any one of claims 1 to 3, characterized in that said third equipment (12) comprises second radiolocation means, and means for determining the orientation of said one or more cameras (15). ) from data supplied by said second radiolocation means and said radiolocation information transmitted by said first transmission means.   6. System according to any one of claims 1 to 5, characterized in that said third equipment (12) also comprises recording means 30 and / or display and / or video information processing means and / or 2885531 25 audio provided by said cameras (15).   7. System according to any one of claims 1 to 6, characterized in that a single camera (15) is used to follow the movements of at least two athletes (11).   8. System according to any one of claims 1 to 7, characterized in that said third equipment (12) also comprises second means for transmitting information to a central equipment (16) and / or to the sportsman (11) .   9. System according to any one of claims 1 to 8, characterized in that said first radiolocation means deliver at least one of the data belonging to the following set: data relating to the position of at least one of said athletes (11). ); data relating to the distance traveled by at least one of said sportsmen (11); data relating to the speed of movement of at least one of said sportsmen (11).   10. System according to any one of claims 1 to 9, characterized in that said first radiolocation means and said first transmission means cooperate with an input interface (17) for the recording and / or display of data. relating to the sport carried out by the athlete (s) (11).   11. System according to claim 10, characterized in that said third-party equipment (12) delivers information on the performance of said at least one athlete (11) as a function of at least one of the following data items transmitted by said input interface ( 17); information from said at least one camera (15); information from a weather station (18).   12. System according to any one of claims 1 to 11, characterized in that it also comprises means for simulating and / or checking the position of at least one of said sportsmen (11).   13. The system of claim 12, characterized in that said verification means comprise a pressure sensor positioned on the front tongue and / or the insole of at least one shoe and a light indicator.   14. Sports equipment (11) implementing ;; radiolocation means, characterized in that it comprises: first radiolocation means celivating radiolocation information; first means for transmitting to said third party equipment (12) said radiolocation information; in order to drive at least one camera (15) associated with said third party equipment (12), based on said radiolocation information. 15. Third-party equipment (12) for training at least one sportsman (11), at least one of said athletes (11) being equipped with first radiolocation means delivering radiolocation information and first transmission means to said third-party equipment (12) of said radiolocation information, characterized in that it comprises at least one camera (15) driven according to said radiolocation information.