EP2200723B1 - Détection et mise à disposition d'informations sur les joueurs, au moyen d'un capteur porté par le joueur - Google Patents

Détection et mise à disposition d'informations sur les joueurs, au moyen d'un capteur porté par le joueur Download PDF

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Publication number
EP2200723B1
EP2200723B1 EP09752755A EP09752755A EP2200723B1 EP 2200723 B1 EP2200723 B1 EP 2200723B1 EP 09752755 A EP09752755 A EP 09752755A EP 09752755 A EP09752755 A EP 09752755A EP 2200723 B1 EP2200723 B1 EP 2200723B1
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EP
European Patent Office
Prior art keywords
magnetic field
ball
radio signal
game ball
assigned
Prior art date
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Active
Application number
EP09752755A
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German (de)
English (en)
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EP2200723A1 (fr
Inventor
Walter Englert
Thorsten Habel
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Cairos Technologies AG
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Cairos Technologies AG
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Publication of EP2200723A1 publication Critical patent/EP2200723A1/fr
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Classifications

    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B71/00—Games or sports accessories not covered in groups A63B1/00 - A63B69/00
    • A63B71/06—Indicating or scoring devices for games or players, or for other sports activities
    • A63B71/0605—Decision makers and devices using detection means facilitating arbitration
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B3/00—Footwear characterised by the shape or the use
    • A43B3/34—Footwear characterised by the shape or the use with electrical or electronic arrangements
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B5/00—Footwear for sporting purposes
    • A43B5/02—Football boots or shoes, i.e. for soccer, football or rugby
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B43/00—Balls with special arrangements
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2209/00—Characteristics of used materials
    • A63B2209/08—Characteristics of used materials magnetic
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2220/00—Measuring of physical parameters relating to sporting activity
    • A63B2220/30—Speed
    • A63B2220/36—Speed measurement by electric or magnetic parameters
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2220/00—Measuring of physical parameters relating to sporting activity
    • A63B2220/50—Force related parameters
    • A63B2220/56—Pressure
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2220/00—Measuring of physical parameters relating to sporting activity
    • A63B2220/50—Force related parameters
    • A63B2220/58—Measurement of force related parameters by electric or magnetic means
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2220/00—Measuring of physical parameters relating to sporting activity
    • A63B2220/62—Time or time measurement used for time reference, time stamp, master time or clock signal
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2220/00—Measuring of physical parameters relating to sporting activity
    • A63B2220/80—Special sensors, transducers or devices therefor
    • A63B2220/801—Contact switches
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2220/00—Measuring of physical parameters relating to sporting activity
    • A63B2220/80—Special sensors, transducers or devices therefor
    • A63B2220/89—Field sensors, e.g. radar systems
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2225/00—Miscellaneous features of sport apparatus, devices or equipment
    • A63B2225/15—Miscellaneous features of sport apparatus, devices or equipment with identification means that can be read by electronic means
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2225/00—Miscellaneous features of sport apparatus, devices or equipment
    • A63B2225/50—Wireless data transmission, e.g. by radio transmitters or telemetry
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2225/00—Miscellaneous features of sport apparatus, devices or equipment
    • A63B2225/50—Wireless data transmission, e.g. by radio transmitters or telemetry
    • A63B2225/54—Transponders, e.g. RFID
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2243/00—Specific ball sports not provided for in A63B2102/00 - A63B2102/38
    • A63B2243/0025—Football
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B43/00—Balls with special arrangements
    • A63B43/004—Balls with special arrangements electrically conductive, e.g. for automatic arbitration

Definitions

  • the present invention generally relates to detecting and providing player-related information in ball sports, and more particularly to acquiring and providing player-related information in such ball sports as soccer game in which a game ball is hit by a gaming machine associated with a player can be.
  • Game equipment and game objects can be accelerated to such high speeds in golf, tennis or football that the detection of the object during the movement requires a specially adapted technology.
  • Previously used technical means - mainly cameras - often do not meet the precision requirements and require too much processing effort.
  • Known methods for position determination by means of corresponding transmitter and receiver combinations also do not have the required spatial resolution and often suffer under problems due to oversized transmitter / receiver components, a meaningful use in sports equipment such. B. game ball, football boot, tennis or golf clubs do not allow.
  • the firing force was detected by a pressure detection in the ball, preferably football. Trajectories were typically evaluated with known pedometer or evaluated by optical detection of the player preferably via video and corresponding manual or automatic evaluation.
  • the present invention remedy.
  • the present invention is based on the knowledge that it is possible and advantageous to no longer produce the magnetic field in the football boot or generally on the player side, but instead once in the game ball to install coils that produce the field.
  • the football boot itself has only a magnetic field sensor for this application, which detects the magnetic field of the game ball upon contact with the ball or entry into the vicinity of the game ball and thereby sends a player assigned identification code (ID) to the ball.
  • ID player assigned identification code
  • the ball contact triggers the sending of an ID, which is then sent to the Bal and is cached there.
  • the shoe sends this ID to a center.
  • the detection of the game ball contact via a magnetic field by means of the in-shoe magnetic field sensor takes place, that the transmission of the assigned ID and preferably measured magnetic field strengths but then with a radio module. in the 2.4 GHz range.
  • the invention is not limited to 2.4 GHz as the carrier frequency of the radio signals. Instead, other suitable radio frequency radio bearers may be used.
  • the magnetic field generated in the ball is much lower frequency and is for example in the range of 3 kHz, which has proven to be favorable.
  • the possible suitable frequency range can be between 1 and 100 kHz.
  • a suitable radio module for the shoe is manufactured by the company Nordic and already used in the WLAN area.
  • the shoe, as well as the play ball, on its own energy source which may be configured very small, however.
  • the shoe draws its required energy from the magnetic field of the game ball, but the preferred embodiment has active components that require battery support.
  • the present invention makes it possible to detect the quality of a player by evaluating selected characterizing parameters. In particular, it records how many times a given player has ball contact for how long, and whether he succeeds in a successful play at what frequency. In this way, by evaluating the collected data, the determination of an objectified measure of the quality of a player can be achieved. Incidentally, a successful playback can be detected by recognizing that the beaten ball is picked up by a teammate of his own team. This is possible by comparing the sent IDs with regard to their assignment to players of the same team.
  • the magnetic field strength as absolute Size is detected and then sent via the wireless module together with the ID of the shoe to the ball.
  • a control unit in the ball can, based on these received signals, determine the ID which was received along with the highest field strength value. The determined ID identifies the shoe or player whose associated magnetic field sensor came closest to the ball. The assigned player may then be identified as the player striking the game ball or being decisively hit, to which ball contact is attributed.
  • the mentioned frequency of preferably three kilohertz for the alternating magnetic field of the game ball has the advantage that this frequency is used very little nationwide and therefore has been found in practice as a very suitable frequency. Since, in particular, training facilities and venues suited as recreational playing areas come into consideration in addition to the designated playing areas as locations for the present invention, interference with widely used carrier frequencies is undesirable.
  • the magnetic field sensor preferably contains a magnetoresistive element.
  • the present invention also allows the measurement of the ball speed after contact with the football boot. This allows the determination of the ball energy of the ball and the shot power applied by the player.
  • the attachment of magnetic field sensor and radio transmitter in the shoe can be used to determine the firing force. This is done by measuring the speed with which the ball moves away from the shoe after ball contact. For this purpose, preferably several field strength values must be determined and transmitted with the associated time stamps from the shoe to the ball.
  • the ball speed after ball contact can also be determined by a control unit already in the shoe via a calibration according to the invention.
  • the calibration is done by determining the typical ball contact distance between the center of the ball in which the magnetic field generating coils are located and the location of the sensor in the shoe.
  • the sensor is placed in the shoe so that regardless of the type of shooting technique used approximately the same distance between the sensor and the center of the ball on impact of the ball on the shoe occurs.
  • the present invention is based on the finding that the distance during ball contact represents the minimum distance between the magnetic field generator and magnetic field sensor and the field strength is maximum due to this greatest approximation of magnetic field coil and magnetic field sensor.
  • a plurality of coils are inserted under appropriate electrical control in the play ball such that the resulting magnetic field vector rotates at high frequency and thus at least approximately the maximum value occurs during the detection process by the magnetic field sensor in the shoe. This allows an approximate exclusion of the negative influence of the rotation of the game ball.
  • the game ball may send an instruction signal to the shoe received via a radio receiver in the shoe and the measurement of the magnetic field strength as the maximum field strength causes.
  • the instruction signal is sent as a result of the determination of a ball contact by means of a pressure sensor arrangement in the game ball.
  • the control unit of the shoe is instructed to send the detection signal with ID of the shoe to the ball at the time of measuring the 50% value of the field strength, for example. Since the ball is the time stamp stores the instruction signal, it can then determine from the received detection signal and this time stamp, knowing the distance calibration value, the speed of the game ball after ball contact and thus the kinetic energy of the ball and the firing force.
  • the present invention proposes that over the magnetic field sensor in the shoe also a tilting of the foot against the earth's magnetic field can be detected.
  • a foot which is currently in full ground contact, is tilted over a period of time in a constant manner against the earth's magnetic field and will therefore produce a recurring reference signal for the magnetic field measurement.
  • the moving foot deviates from this reference signal on its movement.
  • the determination of the ground contact phases allows conclusions about the number of steps and thus also the step frequency of the respective player. By introducing suitable approximations for the stride length, this allows, in particular for non-ball sports, a sufficiently accurate determination of the traveled paths, while a determination of the distance traveled in this way is only approximately reliable for a ball sport in isolation.
  • Fig. 1 shows a schematic representation of a system of a mounted in a football shoe device and a game ball according to an embodiment of the present invention.
  • the system 100 includes a soccer shoe 110 and a play ball 130.
  • the present invention is not limited to use in soccer game. Rather, other ball sports are provided with a provided for acting on the ball game device as an application for the present invention. Also, ball sports in which the ball is hit with bare hands without the interposition of a game machine, may represent applications of the present invention by attaching a magnetic field sensor device 120 by means of a bracelet or the like on, for example, the wrists of the players.
  • the soccer shoe 110 includes a magnetic field sensor device 120.
  • the gaming ball 130 includes a magnetic field generating device system 140, which is preferably mounted in the center of the game ball. This can be accomplished via clamping between suitable springs, flexible foam, or suitably shaped arrays of interior bladders. However, the present invention is not limited to these attachment methods limited.
  • the magnetic field generating device serves to generate a magnetic field having a preferably predetermined detection range. The selected detection range allows the determination of both contacts between football boot and ball and a determination of located near the game ball football boots, so as to allow conclusions about the so-called ball possession of individual players.
  • the possession of the ball is to be understood as a period in which a particular player significantly influences the movement of the game ball in its immediate vicinity.
  • Suitable values for the detection range may be 50 cm or even smaller values such as. B. be 20 cm.
  • the magnetic field 150 generated in the ball 130 by the magnetic field generation system 140 preferably has a frequency of 3 kilohertz and drops outwardly with the radius from the place of generation, preferably from the center of the ball.
  • the shoe 110 contains magnetic field sensor device 120 in order to be able to detect the magnetic field 150 of the game ball 130.
  • the magnetic field sensor device 120 may transmit a detection signal having an ID and preferably the magnetic field strength measured at the location of the shoe back to the play ball 130 after successful detection of a magnetic field.
  • a high-frequency radio signal with, for example, 2.4 gigahertz is used as the carrier frequency.
  • FIG. 2 Figure 12 shows a schematic block diagram of the magnetic field sensor device 120.
  • This includes magnetic field sensor 122.
  • Magnetic field sensor 122 preferably includes a magnetoresistive element or a Hall element. If the magnetic field strength is measured with magnetoresistive sensors as magnetic field-dependent resistors, these can be switched to a bridge. The output signal of the bridge can be amplified by a differential amplifier. The output voltage is a direct measure of the field strength of the measured magnetic field. In order to obtain an evaluable signal at every possible axis of rotation of the game ball, two or three sensors offset by 90 degrees each can be used.
  • the field strength can be measured with Hall sensors.
  • Hall sensors generate a voltage proportional to the field strength.
  • This voltage can be amplified by means of a differential amplifier.
  • the output voltage is a direct measure of the field strength of the magnetic field.
  • the evaluation of this voltage can be done either discretely via an analog circuit or with the aid of a control unit, for example a microcontroller.
  • two or three sensors offset by 90 degrees can be used.
  • Device 120 further includes a controller 124, which may be provided as a microcontroller or application specific integrated circuit. Control unit 124 controls instructions and the evaluation, further processing and storage of magnetic field measured values and generates associated time stamp values, which can be forwarded to a memory 121 and / or to a transmission unit 128.
  • Device 120 further includes a power source 126.
  • Power source 126 is a battery in accordance with one embodiment of the present invention. In this case, device 120 is supplied, for example, via a lithium battery. The capacity of the battery is designed so that the functionality of the electronics is ensured in the device 120 over a certain number of several hundred or a thousand hours of operation. Preferably, the energy source 126 may be provided as a replaceable unit that can be replaced by the user without much effort.
  • device 120 further includes an acceleration sensor 129.
  • Fig. 3 schematically shows in a block diagram system 140 in game ball 130 according to an embodiment of the invention.
  • System 140 is shown as completed. This illustration serves to simplify the emphasis on the means provided for the present invention in the toy ball.
  • the invention also includes an arrangement of the various units, including sensors, transceivers and energy source, distributed in the toy ball.
  • System 140 includes magnetic field generation unit 142. Magnetic field generation unit 142 comprises at least one magnet coil sufficiently dimensioned for generating a magnetic field of the determined detection range.
  • Energy preferably obtains unit 142 from power source 146, which is a battery according to one embodiment of the present invention. For example, a lithium battery is provided as the power source 146.
  • a rechargeable energy source 146 may also be provided.
  • a power source 146 can be used, which is recharged during a read operation of the data stored in memory 141 via induction or direct energy supply.
  • control unit 144 in the game ball. Control unit 144 is used, in particular, for controlling transceiver 148, for evaluating data and for controlling the communication flow in system 140. In particular, detection signals received by transceiver 148 and sent to gaming machine 130 by device 120 are detected, further processed by control unit 144. and optionally stored in memory unit 141 with the addition of associated timestamps.
  • the information records stored in memory unit 141 can be read out by a central read station from system 140.
  • transceiver 148 can be provided for data transmission.
  • Device 140 may further include, according to preferred embodiments, a pressure sensor 147 and an acceleration sensor 149. These additional sensors may be mounted outside of the center of the ball in the game ball and be connected for readout via control unit 144.
  • Energy sources 126 and 146 in Fig. 2 and Fig. 3 serve the power supply of the complete electronic device 120 and the complete electronic system 140.
  • the use of a plurality of coils, preferably three coils, in magnetic field generating unit 142 is provided.
  • problems may arise, which are caused by the rotation of the game ball.
  • a single coil generates a dipole field, which then leads to rotation-related field strength deviations in the magnetic field measurement on the shoe.
  • the field strength measured on the shoe depends on what angle the generating coil is to the shoe and the magnetic field sensor at the time of ball contact.
  • a rotating one Field vector is generated by the use of preferably three coils under appropriate electrical control (vector noise).
  • the rotating magnetic field should have a rotational speed which is very high compared to the possible rotation speed of the game ball. This ensures that approximately at any time of a ball contact by the very fast changing at least a maximum value is determined by the magnetic field sensor, which then represents the optimal alignment between the ball and the sensor. That is, compared to the possible Spielballrotation the rotational frequency of the field vector is so high that the ball rotation no longer precludes an accurate determination of the field strength. This excludes a negative influence of the rotation of the game ball in the magnetic field strength determination.
  • Fig. 4 shows a flowchart for explaining a method for detecting a ball contact or close ball contact between the football shoe 110 and ball 130th
  • System 140 in ball 130 first generates a magnetic field for the desired duration of the data determination, step 410. If a device 120 with magnetic field sensor 122 then arrives in the detection range of the generated magnetic field, the magnetic field sensor detects the magnetic field, step 420, and a detection signal of of the device 120 via the transmitting unit 128 to the game ball, step 430.
  • This detection signal contains an identification code (ID), which is assigned to the football boot pair clearly for player determination.
  • ID identification code
  • the code transmission can take place via modulation of a carrier signal, which is preferably transmitted at 2.4 gigahertz.
  • the transmission unit 128 used is, for example, a radio module from the company Nordic, which is known from the WLAN field.
  • the absolute value of the magnetic field strength which is determined by magnetic field sensor 122, can be forwarded to control unit 124 for further processing, for storage in storage unit 121 and for transmission to the play ball via transmitting unit 128.
  • the measured magnetic field strength is sent to the ball together with the ID as a detection signal.
  • device 140 in the game ball receives the detection signal (s).
  • the received detection signal is then assigned a time stamp and the value pair of ID and time stamp is stored in memory unit 141 of the game ball for later reading.
  • all pairs of values stored in the memory 141 which can also be preprocessed by the control unit 144, are read once after a specific training or game unit.
  • Fig. 5 shows a flowchart for explaining a method for determining the shooting force in a ball contact according to an embodiment of the present invention.
  • system 140 in the play ball 130 includes a pressure sensor 147.
  • the pressure sensor is used on the ball side to determine when the ball is impacted by a football shoe or impacts an obstacle.
  • the toy ball Upon detecting such a pressure event on the toy, step 510, the toy ball sends an instruction to potential magnetic field sensor devices 120 of football boots to immediately take a measurement of the magnetic field in place, step 520.
  • transmission unit 128 is also a radio transmitter. receiving unit.
  • the instruction received via transmitting / receiving unit 128 is also understood by device 120 as an instruction, in addition to the instantaneous magnetic field strength measurement for determining a maximum field strength, to also periodically measure the magnetic field strength until, for example, a 50% value of this maximum field strength is measured , contraption 120 transmitted, again via transmitting unit 128 and transceiver unit 148 of the game ball as a receiver unit, the time of measurement of the example, 50% value of the maximum field strength of the game ball.
  • the time stamp of the transmission of the instruction is stored in memory 141.
  • the comparison of the received time stamp with the stored time stamp allows the determination of a time difference .DELTA.t.
  • the speed of the game ball can now be determined after the ball contact and thus approximately the firing force.
  • the ball speed corresponds approximately to the ratio of the distance traveled between the time of impact and the time of measurement of the 50% value to the time difference.
  • the distance between sensor device 120 and the middle of the game ball, which is mounted in system 140 is used during ball contact as a calibration value for the minimum distance.
  • This calibration can be stored both in the memory 121 of the device on the shoe and the memory 141 of the system 140 in the game ball. If the measured field strength drops to, for example, 50% of the maximum value, then the distance has increased correspondingly in relation to the calibration value. The ratio of this distance increase to the difference of the time stamp thus corresponds approximately to the ball speed at the location of the second time stamp.
  • device 120 may send a sequence of data sets of the ID and the respectively measured magnetic field strength with corresponding time stamps to the game ball. This allows the temporal resolution of the locus of the game ball relative to the magnetic field sensor 122, and thus with the additional use of a calibration distance, as may preferably be determined as above, a very accurate determination of the applied firing force, which ultimately represents the desired information regarding the analyzed player. Alternatively, the energy and thus approximately the applied firing force can be determined approximately from the ball speed determined as above.
  • FIGS 6A and 6B show schematic representations of preferred readout arrangements according to embodiments of the present invention.
  • plaything 130 is brought into proximity or onto a concave trough of a readout device 610 with radio transceiver 640 for readout.
  • the radio transmission 660 between the transceiver 148 and the transceiver 640 is intended to be short-range.
  • the player information stored in the memory 141 of the game ball or, alternatively, the captured data may be transferred directly from the control unit 144, bypassing the memory 141 via transceivers 148, for example from the field, to a readout device 610 with radio receiver 640.
  • a readout device 610 a portable media player or a mobile phone is provided according to embodiments.
  • the present invention it is possible via the reading of a game ball according to the invention to gain detailed information about characteristics of the players participating in the game operation.
  • This allows not only the immediate analysis of the performance development of a player, for example, the upload of player-related characteristics in centrally managed databases that z. B. allow over the Internet a comparison of amateur players. So it is interesting for different providers that players voluntarily put their data for mutual sporting comparison on the Internet.
  • the present invention also allows players to be absolutely comparable to one another in terms of objectified performance values, even if they have never played with each other or against each other, much as golfing is possible. in the semiprofessional or professional field, it is also intended to make the training performance of players comprehensible and to design training plans according to the data obtained.

Claims (15)

  1. Dispositif (120) pour détecter un champ magnétique (150) dans un accessoire de jeu d'un sport de ballon, l'accessoire de jeu pouvant être associé à un joueur, et pour émettre une identification associée au dispositif, le dispositif contenant :
    - un capteur de champ magnétique (122) pour détecter et mesurer un champ magnétique ;
    - une unité de commande (124) ; et
    - une unité d'émission (128) pour émettre un signal radio (160) qui contient l'identification associée au dispositif (120),
    - l'émission du signal radio se faisant avec une commande grâce à l'unité de commande.
  2. Dispositif selon la revendication 1, qui contient par ailleurs une source d'énergie (126) pour alimenter activement en énergie au moins l'unité d'émission.
  3. Dispositif selon la revendication 1 ou 2, qui contient par ailleurs une mémoire (121) pour la lecture de l'identification et pour l'écriture de valeurs d'intensités de champ magnétiques mesurées, avec des estampilles associées.
  4. Dispositif selon l'une des revendications 1 à 3, étant précisé qu'une intensité de champ magnétique est mesurée périodiquement.
  5. Dispositif selon l'une des revendications 3 ou 4, étant précisé qu'au moins un ensemble de données composé de l'intensité de champ magnétique mesurée et de l'estampille associée se rapporte au champ magnétique terrestre.
  6. Ballon (130) pour détecter et fournir des informations qui sont associées à des joueurs d'un sport de ballon, le ballon contenant :
    - un générateur de champ magnétique (142) pour générer un champ magnétique alternatif (150) ;
    - un émetteur-récepteur (140) pour recevoir des signaux radio (160) qui sont envoyés en réaction à une détection du champ magnétique alternatif généré et qui contiennent une identification qui peut être associée à un joueur, et pour envoyer des informations de joueur recueillies ;
    - une unité de commande (144) pour analyser des signaux radio reçus et pour associer des estampilles à des identifications à partir de signaux radio reçus ;
    - une source d'énergie (146) ; et
    - une mémoire pour écrire et lire des informations de joueur sur la base des identifications avec des estampilles associées.
  7. Ballon selon la revendication 6, qui contient par ailleurs un dispositif capteur de pression et un capteur d'accélération.
  8. Ballon selon la revendication 6 ou 7, étant précisé que le générateur de champ magnétique contient au moins 3 bobines qui sont commandées électriquement de telle sorte que le vecteur de champ magnétique formé tourne en trois dimensions, la fréquence de rotation étant globalement supérieure à la fréquence de rotation du ballon qui est possible lors du jeu.
  9. Système pour détecter et fournir des informations qui sont associées à des footballeurs, le système contenant :
    - un ballon (130) avec
    - un générateur de champ magnétique (142) disposé de manière centrale pour générer un champ magnétique alternatif (150) ;
    - un émetteur-récepteur (148) pour recevoir des signaux radio (160) et pour envoyer des informations de joueur recueillies ;
    - une unité de commande (144) pour analyser des signaux radio reçus et pour associer des estampilles à des identifications à partir de signaux radio reçus ;
    - une source d'énergie ; et
    - une mémoire pour stocker et lire des informations de joueur sur la base des identifications avec les estampilles associées ; et
    - un dispositif (120) pour détecter dans une chaussure de foot le champ magnétique généré et pour envoyer une identification associée au dispositif, avec
    - un capteur de champ magnétique (122) pour détecter et mesurer le champ magnétique (150) ;
    - une unité de commande (124) ; et
    - une unité d'émission (128) pour émettre un signal radio (160) qui contient l'identification associée au dispositif (120),
    - l'unité d'émission étant alimentée activement en énergie, et l'émission du signal radio se faisant avec une commande grâce à l'unité de commande.
  10. Système selon la revendication 9, étant précisé que le champ magnétique alternatif (150) généré présente une fréquence de 3 kHz, et le signal radio (160) une fréquence porteuse de 2,4 GHz.
  11. Système selon la revendication 9 ou 10, qui contient par ailleurs
    - un dispositif de lecture (610) avec un récepteur radio (640) pour recevoir (660) les informations de joueur recueillies.
  12. Procédé pour détecter et fournir des informations de joueur à l'aide d'un capteur prévu côté joueur, étant précisé que le procédé comprend les étapes qui consistant :
    - à générer (410) un champ magnétique dans un ballon ;
    - à détecter (420) le champ magnétique avec un capteur de champ magnétique d'un dispositif (120) installé dans un accessoire de jeu d'un sport de ballon, l'accessoire de jeu pouvant être associé à un joueur ;
    - à émettre (430) un signal radio grâce au dispositif (120), le signal radio contenant une identification qui est associée au dispositif ; et
    - à recevoir (440) le signal radio avec l'identification dans le ballon.
  13. Procédé selon la revendication 12, comprenant par ailleurs les étapes qui consistent :
    - à associer une estampille à l'identification ; et
    - à mettre en mémoire (450) l'identification avec l'estampille.
  14. Procédé selon la revendication 13, comprenant par ailleurs les étapes qui consistent :
    - à mesurer l'intensité de champ magnétique avec le capteur de champ magnétique,
    - étant précisé par ailleurs que l'émission d'un signal radio comprend l'émission d'un signal radio par le dispositif, et que le signal radio contient une identification qui est associée au dispositif, et l'intensité de champ magnétique mesurée ;
    - à analyser (444) le signal radio, avec la comparaison de l'intensité de champ magnétique mesurée à des intensités de champ magnétique mesurées qui sont contenues dans d'autres signaux radio reçus dans une fenêtre de temps définie située aux alentours de la réception du signal radio, et à définir une intensité de champ magnétique maximale pour la fenêtre de temps ; et
    - à mettre en mémoire l'identification, avec l'estampille associée, qui est associée à l'intensité de champ magnétique maximale.
  15. Procédé selon l'une des revendications 12 à 14, comprenant par ailleurs les étapes qui consistent :
    - à déterminer (510) un événement de contact à l'aide d'un capteur de pression dans le ballon ;
    - à envoyer (520) grâce au ballon une instruction de mesure ;
    - à mesurer une intensité de champ magnétique de référence grâce au capteur de champ magnétique en réaction à la réception de l'instruction de mesure ;
    - à déterminer un moment où l'intensité de champ magnétique mesurée par le capteur de champ magnétique est tombée à une fraction définie de l'intensité de champ magnétique de référence ; et
    - à envoyer au ballon un signal radio avec l'identification et une estampille correspondant au moment déterminé.
EP09752755A 2008-11-17 2009-11-17 Détection et mise à disposition d'informations sur les joueurs, au moyen d'un capteur porté par le joueur Active EP2200723B1 (fr)

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DE102008057705A DE102008057705A1 (de) 2008-11-17 2008-11-17 Erfassen und Bereitstellen von Spielerinformationen mit spielerseitigem Sensor
PCT/EP2009/008162 WO2010054849A1 (fr) 2008-11-17 2009-11-17 Détection et mise à disposition d'informations sur les joueurs, au moyen d'un capteur porté par le joueur

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ES2365124T3 (es) 2011-09-22
EP2200723A1 (fr) 2010-06-30
WO2010054849A1 (fr) 2010-05-20
US8678897B2 (en) 2014-03-25
US20110269517A1 (en) 2011-11-03
DE102008057705A1 (de) 2010-05-20

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