WO2013029191A1 - Dispositif de détection de données de jeu de tennis - Google Patents

Dispositif de détection de données de jeu de tennis Download PDF

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Publication number
WO2013029191A1
WO2013029191A1 PCT/CH2012/000199 CH2012000199W WO2013029191A1 WO 2013029191 A1 WO2013029191 A1 WO 2013029191A1 CH 2012000199 W CH2012000199 W CH 2012000199W WO 2013029191 A1 WO2013029191 A1 WO 2013029191A1
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WO
WIPO (PCT)
Prior art keywords
player
data
tennis
ball
designed
Prior art date
Application number
PCT/CH2012/000199
Other languages
German (de)
English (en)
Inventor
Christian Züger
Original Assignee
Kitris Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kitris Ag filed Critical Kitris Ag
Priority to EP12756066.2A priority Critical patent/EP2747853A1/fr
Priority to CN201280048507.3A priority patent/CN103857446B/zh
Priority to US14/240,833 priority patent/US20140206481A1/en
Publication of WO2013029191A1 publication Critical patent/WO2013029191A1/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
    • A63B69/00—Training appliances or apparatus for special sports
    • A63B69/38—Training appliances or apparatus for special sports for tennis
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B19/00—Teaching not covered by other main groups of this subclass
    • G09B19/003—Repetitive work cycles; Sequence of movements
    • G09B19/0038—Sports
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B24/00—Electric or electronic controls for exercising apparatus of preceding groups; Controlling or monitoring of exercises, sportive games, training or athletic performances
    • A63B24/0003—Analysing the course of a movement or motion sequences during an exercise or trainings sequence, e.g. swing for golf or tennis
    • 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
    • A63B71/0619—Displays, user interfaces and indicating devices, specially adapted for sport equipment, e.g. display mounted on treadmills
    • A63B71/0622—Visual, audio or audio-visual systems for entertaining, instructing or motivating the user
    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G9/00—Visual time or date indication means
    • G04G9/0064—Visual time or date indication means in which functions not related to time can be displayed
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/20—Movements or behaviour, e.g. gesture recognition
    • G06V40/23—Recognition of whole body movements, e.g. for sport training

Definitions

  • the invention relates to a device for detecting tennis game data according to the preamble of claim 1. Furthermore, the invention relates to a tennis game detection device according to claim 24, a data processing program according to claim 29 and a data carrier containing such a program. State of the art
  • a device of the type mentioned is known from WO 2009/033298.
  • the device shown there allows to input the tennis game speech inputs into the device, which are then evaluated by means of speech analysis to at least the points of the
  • the device shown there enables the continuous voice input.
  • the device described in the cited document allows the delivery of unexecuted speech signals to a base station, but may also be designed so that the speech recognition and the evaluation takes place up to the score display in the device itself.
  • the invention is based on the object to improve such a device.
  • the device detects a plurality of data acquisition devices that record different data
  • the game can be better detected and subsequently evaluated.
  • two and preferably more than two data acquisition devices from the group speech acquisition device with microphone, ball impact detection device, motion sensor device, key input device and physiology sensor device are provided in the device.
  • the device is worn on the player's arm, particularly similar to a wristwatch.
  • the voice input is possible only after a previous activation, whereby error detection of the speech signals, with which the player enters the game or the points obtained, are significantly reduced. Furthermore, the power consumption can be reduced if the speech recognition is activated only temporarily.
  • the activating means is a finger-operated switch or button.
  • the activation means may be formed by a motion sensor in the device. It is thus possible to move the device, for example, by making a single or two-fold rotary motion with the wrist or, for example, with the finger to knock on the device to unlock by this movement or movements of the device, the voice input device so that they are the subsequent game relevant Voice input allowed.
  • This manual release (first criterion) can be combined with a special trigger voice command (second criterion) for release, so that only when both criteria are present the (further) voice input for the actual Player record is released.
  • an activating means in the form of another sensor for example a reed contact, can also be provided, which can be actuated by a means provided by the player or provided on the tennis racket, ie in the example mentioned by a permanent magnet fixed to the racket.
  • control of the device different manually inputable operating sequences and following the manual input first voice input are recognizable, the manual sequence and the voice input in combination are recognizable as an assignment indicating whether the input for the player or for whose opponents takes place. Furthermore, it is preferred that the control is set up in such a way that a voice input made after the assignment can be checked for correctness in relation to the assignment of player or opponent.
  • the activation of the speech recognition thus serves, as mentioned, on the one hand the reduction of the energy requirement, on the other hand the "unambiguous" assignment of points to a player.
  • This is done by activating as a sequence (be it by pressing a button or turning the arm or tapping) simply or twice (simply pressing the button or pressing the button twice).
  • a linguistic trigger command is expected or recognized by the controller.
  • the commands can, for example, each comprise three commands which already contain detailed information on the type of point (winner, forced error, un-forced error) and at the same time serve to check the point assignment by the activation.
  • a key input device may be provided which provides keys for predetermined play or beat information that would otherwise be input via voice input, so that the input is made by operating the corresponding key or combination of multiple keys.
  • the device comprises a vibration generator which can be activated to confirm receipt and / or recognition of voice input.
  • the player can be confirmed the successful entry, without having to look at the display of the device.
  • the invention is further based on the object to capture game information even better and to relieve the player of voice inputs.
  • the device is equipped with a motion sensor device, which is configured in particular for detecting and storage of tennis striking movements of the player.
  • a motion sensor device which is configured in particular for detecting and storage of tennis striking movements of the player.
  • an evaluation device is provided which allows the detection of tennis striking movements of the player. This can instead be done in a higher-level computer (SERVER), especially if no BASE is provided.
  • SERVER higher-level computer
  • the detection and evaluation to take place already in the device itself, so that the data read out from the device already contain the evaluated motion sensor signals and not just the raw data of the motion sensors, although this is the preferred variant.
  • the completeness of the game data can be fundamentally improved, even if beat information can be stored and associated with the course of the game.
  • the beat information determined by the sensors in particular by comparing previously stored sensor signals for known beats with the current sensor signals in the BASE and / or in the SERVER and / or in the device, the possibility arises of recognizing Sensor signal patterns and the generation of precise beat information such as stroke type, forehand or backhand, spin etc.
  • the device is a device that can be worn on an arm of the player and configured in such a way that either striking movements on the striking arm of the player or on the player's non-striking arm are recognizable.
  • the sensor signals occurring at the non-impact arm are also characteristic for the movement of the impact arm and thus for the impact, even if they differ from the sensor signals on the impact arm.
  • the ability to choose by the player allows him to personal preference to wear the device on the beater arm or the non-impact arm. Instead of wearing on the arm
  • the device may also be designed to be worn on the upper body of the player, in particular with a chest strap, or on the head of the player. In these cases, other sensor signals are produced during typical player strokes, which is taken into account in the evaluation.
  • the device or software program carrying out the evaluation must allow an input which indicates how the device has been worn and, on the other hand, the device or the program must be equipped with corresponding motion sensor data libraries or tables in which the for the typical
  • Beats resulting sensor data are stored.
  • This can be player-independent sensor data that has been determined on a collective of players and has been stored.
  • player-dependent sensor data can be stored, which must first be recorded.
  • the motion sensor device used in the device for generating the beat information comprises acceleration sensors.
  • gyroscopic sensors and preferably also orientation sensors which are also referred to as compass sensors.
  • orientation sensors which are also referred to as compass sensors.
  • accelerations in all directions and rotations can be detected, which are characteristic of the impact movement.
  • the orientation sensors the orientation of the player can be detected depending on the tennis court.
  • the sensor signals can be compared by the device with previously stored in it, characteristic of a particular impact sensor data ranges, from which the device can determine the current impact.
  • the device is arranged in the tennis racket.
  • the device may be arranged in the grip of the racquet.
  • An arrangement in the frame and / or in the clothing, the latter similar to a vibration damper in the fabric, may also be provided. This in addition to a partial arrangement in the handle or only in the fabric or the frame. It can also be provided that the device is worn as described on the body, but that a
  • Part of the device is disposed in or on the racquet and communicates wirelessly with the body-worn portion of the device.
  • the device is designed to generate and store a ball signal (and possibly also to combine the motion sensor device data with the ball signal), which signals the impact of the tennis ball on the tennis racket of the player.
  • the ball signal is then linked to the other information or data from the device only in the tennis game detection device (BASE) or in the higher-level computer (SERVER).
  • BASE tennis game detection device
  • SERVER higher-level computer
  • the ball signal is generated in the device itself, so that no external sensor is necessary for it.
  • the device can also be designed to receive an externally generated ball signal, e.g. a ball signal delivered by the tennis racket. In this case, the device and the tennis racket are connected to each other via a near field radio link.
  • the ball signal generated in the device is preferably formed in such a way that via a microphone in the front Direction of the impact is detected acoustically and is evaluated by an evaluation device of the device as a ball signal.
  • a second microphone can be used, which is not identical to the microphone for voice input.
  • a detection of the ball signal is provided with the same microphone, which is also provided for the voice input.
  • the ball signal is detected and evaluated, which results from the impact of the ball on the racket of the player with the device, but also that a ball signal is generated, indicating the previous impact of the ball on the tennis court.
  • the impact of the ball can also be detected acoustically by the microphone.
  • a ball signal is generated when the opponent hits the ball. This signal can also be generated by acoustic detection of the corresponding noise. If the corresponding ball signals are displayed during the evaluation of the game information on a timeline, then conclusions can be drawn about the game.
  • the invention comprises at least one orientation sensor (compass sensor).
  • This can e.g. be formed by an integrated circuit LSM303DLH type of the company STI Microelectronics. It is thus possible to determine the orientation / orientation of the player relative to the tennis court, since the orientation of the tennis court is known and fixed.
  • the device may further be configured to detect the heart rate of the player by being configured to receive a signal from a known heart rate sensor. Further or instead of the heart rate, other physiological data can be detected, in particular with a physiological sensor for detecting the oxygen saturation of the blood and / or with a physiological sensor for measuring the sweat and / or with a physiological sensor for measuring the blood pressure.
  • the invention is further based on the object to improve the basically known base station, so that more information is available.
  • a tennis game detection device of the aforementioned type which additionally comprises at least one laser scanner, by which at least the impact position of one of the players on the tennis court is detectable when placing the tennis game evaluation device at a tennis court.
  • the tennis game detection device is configured to synchronize the beat position with the data signals received from the device. By bringing together the data from the player-worn device and the player's location, which is best achieved through a common timeline of information, the player can be given an even better analysis after the game.
  • the tennis game detection device comprises at least one video camera for receiving at least one half of the tennis court, in particular comprising two video cameras for receiving both halves of the tennis court.
  • the player can be provided with very accurate analyzes.
  • the at least one video camera can be controlled by the position signal of the at least one laser scanner, such that focused player recordings can be generated.
  • a video camera with so-called PTZ function Pan / Tilt / Zoom
  • the invention is further the task. Basically, to provide a data processing program that improves the analysis of the tennis game. This is achieved by a data processing program which is designed for processing the data of a tennis game detection device and by which game point information from the device and video information on time information can be linked and video sequences are displayed in dependence on Spielticianresults.
  • Figure 1 is a block diagram of a device according to an embodiment of the invention.
  • FIG. 2 shows a frontal view of an embodiment of the device
  • Figure 3 is a schematic representation of a tennis court and the device and the tennis game detection device. Ways to carry out the invention
  • Figure 1 shows a block diagram of a preferred example of the device.
  • This electronic circuit is e.g. housed in a housing, as shown as an example in Figure 2.
  • This embodiment shown there has a housing similar to a sports watch and a watch strap, so that the device can be worn on the arm of the tennis player.
  • For the functionality of the device in speech recognition can in principle to the aforementioned WO
  • the block diagram of the device shows a processor 1. This executes all calculation and control functions.
  • the processor executes all calculation and control functions.
  • the processor executes all calculation and control functions.
  • the processor executes all calculation and control functions.
  • processors are known to the person skilled in the art and commercially available, eg a processor NLP-5x from Sensory
  • processors allow the connection of an analog microphone 2 which is available for voice input by the player and control buttons are provided, one of which is a special control button 13 ( Figure 2, where also three side buttons 3 are shown) which activates speech recognition in the processor, as previously explained, ie, if the player presses the button 13 included in the box 3 in Figure 1, the voice recording of the processor 1 is activated so that the player can score his points - and / or beat description so that it can be analyzed and converted to digital data or in accordance with the above-described sequences or with the thus possible differentiation of speech input concerning the player and the opponent.
  • DSP digital signal processor
  • WO 2009/033298 shows one possibility.
  • voice input it is also possible to enter specific points or beat descriptions via correspondingly provided keys on the device. Accordingly, the microphone for the speech input will be omitted. If the voice input is omitted, a CPU other than the named one may be used.
  • An optical display is denoted by 4 in the block diagram and may be, for example, an OLED display.
  • the display provided in the housing 10 is designated by 14.
  • a memory 5 may be formed by a flash memory module or a secure digital memory card (SD card). at According to a preferred embodiment, the device has motion sensors by means of which it can detect the striking movement of the player.
  • acceleration sensors 6 and gyroscopic sensors 7 are provided for this purpose, which supply corresponding signals for all axes and which are connected to the processor 1, which receives the sensor signals and at least stores them.
  • the evaluation of these data usually takes place later, when the data is read from the device (eg in a tennis game detection device (BASE) 30 ( Figure 3) or in a SERVER 35). However, the evaluation could already take place in the device itself.
  • the evaluation it is provided in particular that (in the case of the device by the processor 1) the sensor data resulting from a specific impact of the player is compared with a table (in the case of the device in the memory 5) containing typical value ranges for the typical tennis beats , These values have been determined empirically and then stored.
  • Acceleration sensors are commercially available and, for example, a 3-axis sensor circuit of the type LIS3DH can be used.
  • gyroscopic sensors 7 with which the angular velocity of the impact movement can determine, for example, a 3-axis sensor circuit of the type L3G4200D be called.
  • Combined acceleration and gyroscope sensor circuits are also available on the market which may be used, eg a LSM320HAY30 sensor.
  • an orientation sensor or compass sensor which can determine the orientation of the player relative to the tennis court, For example, a 3-axis sensor circuit of the type
  • LSM303DLHC be called.
  • the latter can detect and store the beat information both when the player is wearing the device on the striking arm and when the player is wearing the device on the non-striking arm. It is communicated to the processor 1 by the player via the keys 3, which choice the player wishes to make. When reading out the data, this information is then read out, so that the tennis game detection device 30 and / or the server 35 can consult corresponding tables which are suitable for the choice of the striking arm or the non-striking arm. If tables are consulted from the memory 5 of the device, the procedure is accordingly dependent on the choice made previously. It has been found that sensor signals which are characteristic of a specific impact also result in the arm other than the striking arm.
  • the device may also (alternatively or additionally) be worn on the upper body, e.g. with a chest strap, or designed to be worn on the player's head.
  • the location of the wear on the body can be entered on the device, so that it is clear for the evaluation of the signals at what kind of wear they were generated.
  • the device can also be arranged completely or partially in the player's racket.
  • the device can detect and possibly also take into account a ball signal which indicates that the player has hit a ball with his bat. This can be done in the
  • Bat a sensor be present, the signal is taken over into the device, for example via the interface 15.
  • the device detects the ball signal itself. This is done in particular via the microphone of the device, which detects the impact of the ball acoustically. This can also be another microphone 8 be provided, which absorbs the noise that occurs during contact between the tennis racket and tennis ball, so that it can be detected by the processor.
  • the preferred embodiment with acoustic detection allows a very good detection of a shock. In the same way, the impact of the ball on the tennis court and the encounter of the ball with the opponent's racket can be detected.
  • the device allows a vibratory feedback to the carrier, so in particular with key inputs and / or voice inputs.
  • a vibration motor 9 is provided.
  • the device can have a USB interface 16 and / or a wireless interface, in particular a Bluetooth interface 15, in particular via a Bluetooth low-energy interface.
  • FIG. 2 shows the device 10 in a preferred embodiment as an arm-worn device with a wristband 12.
  • Figure 3 shows schematically a tennis court 20 with the two halves 21 and 22.
  • the player 23 carries a device 10 on the non-impact arm, which is shown in the figure by the device 10 shown in large size and the arrow to the arm.
  • the speech bubble 24 and the rectangles 25 and 26 are intended to symbolize the voice input by the player, the voice recording by the microphone and the speech analysis by the processor 1.
  • the device 10 With the device 10 alone, it is possible to record the important information of a tennis game, as has been described. In this case, the device is read by a computer 40 and the data is transmitted to the server 35. There the mentioned evaluations can be made from the raw data. As an additional element, however, a tennis game detection device 30 may be provided. Subsequently, both cases are considered.
  • the device 10 is referred to as KIT, the tennis game Detecting device 30 as BASE.
  • a server 35 is mentioned on which runs a data processing program according to the invention. This server will be referred to as SERVER below. The program could also run on the Tennis Game Detector 30 (BASE) and evaluate the data from the device 10 there.
  • KIT 10 works autonomously. All collected data is downloaded via USB to any computer 40 and uploaded from there to the SERVER 35.
  • KIT 10 works with BASE 30.
  • a connection is established between a KIT 10 and a BASE 30. If a match is initialized on the KIT (generation of a unique match ID), the match ID is transmitted to BASE and the time is synchronized. BASE then collects additional information such as video signals and position data of the players.
  • the match data collected by BASE (own and transmitted by KIT) will be transmitted in whole or in part live to the SERVER, depending on the quality of the existing internet connection.
  • the data collected after match / tournament ends is physically connected to a third party device (for example, by removing the removable disk / hard disk in the case of the BASE), from where the data relay to the SERVER takes place.
  • a third party device for example, by removing the removable disk / hard disk in the case of the BASE
  • Smartphone On the server, the data processing, evaluation, etc. takes place.
  • the management of the matches is also web-based. A login allows the user to access his matches and match data. As far as necessary, only software for simplified data upload is installed locally on the device.
  • the server has different services (web applications) such as publication of live match data, coaching function, preparation of statistics, etc.
  • KIT can be worn as a watch and has the usual applications that has a watch.
  • a new match ID is first generated. This is formed on the basis of device number, player information, etc.
  • the player In a next step, the player must tell the KIT if he wears KIT on the batting arm or the non-batting arm.
  • the relevant information about a match can be recorded via a graphical interface (GUI) (tournament number, match mode (two winning sets with tiebreak in the third set), name opponent, temperature, etc). This can be done either via the function keys or via voice recording (at least partially with voice recognition).
  • GUI graphical interface
  • the data can also be recorded on a third-party device (laptop, smartphone, etc.) and transferred via USB to the KIT.
  • KIT Activation match mode After the play-in phase, immediately before the start of the game, the player starts the match tracking program via the function keys 3. KIT then only needs the information, which player in the first game opens. KIT switches to match mode. Speech recognition is enabled but still paused. All sensors and the microphone for the ball signal are activated.
  • the player When a point is completed, the player captures the point information in the depth he wants (minimum information to maximum information).
  • the KIT recognizes the rotational movement due to the motion sensors, in particular the gyroscopic sensors or recognizes the knocking due to the sensors 6 and the microphone 2 or 8 as a predefined "motion / noise pattern" and activates speech recognition.
  • Pressing the main button once means “point for the player.” Twice pressing / turning or tapping (within one second) means “point for the opponent.”
  • the speech recognition software opens another trigger command vocabulary set. This consists of only six words. The six words stand for the player in the case of the point
  • KIT expects a point confirmation for the player by one of the six commands after pressing the main button once. If this confirmation does not occur within three seconds, the speech recognition is closed and an error message appears in the display. The process must now be repeated as described above.
  • KIT After correctly recognizing a trigger term, KIT also opens the vocabulary set for the detailed information about the beat. Speech recognition remains active for 5 seconds. If there is no recognition of further terms from this vocabulary, the speech recognition is closed again. If a command is detected, this information is saved with the point information.
  • the commands for the detailed information (for example, forehand / backhand, volley, spin, stop ball, etc.) can be spoken in any order.
  • the system can independently assign the information to a category.
  • the player wants to record a personal comment on a certain point, a game, etc. he can activate the recording mode by pressing a button 3 for two seconds. If the speech recognition mode is active, it will be deactivated and the recording mode will be activated. The display will show the message "Speak now.” He can now speak his comment for a maximum of 10 seconds. The recording mode stops either when the 10 seconds have been reached, which is signaled by a vibration signal, or by pressing the X key again automatically switches to the result display and KIT returns to the normal match mode If the player wants to record a comment again, he must repeat the process.
  • KIT can have two microphones. That for speech recognition, which is activated only on request and a microphone to measure the impact of the ball on the racket (and possibly on the pitch and the opponent). This second microphone is constantly active and detects all sounds. Preferably, both functions can be met with a microphone, but the signals are evaluated only on request or when activated as voice inputs.
  • the detected ball signals and also the voice signals are preferably stored as digital data locally on the KIT or additionally transmitted in the presence of a connection to the BASE.
  • This method saves a lot of storage space compared to storing the audio files (for postprocessing) and massively reduces the amount of data to be transmitted if there is a connection to the BASE.
  • Accelerometers (Accelerometer / Accelerometer)
  • An acceleration sensor detects the linear acceleration in the x, y or z axis. From this, the translational motion can be calculated.
  • a rotation rate sensor measures the angular velocity about the x, y or z axis. From this, the rotational movement can be calculated. In particular, this sensor can also be used to detect the rotational movement of the wrist in order to activate the device and can therefore replace the below-mentioned live analysis for knocking.
  • a magnetic field sensor (compass sensors) can additionally be used.
  • the compass sensor is denoted by 7 '.
  • the values determined by the sensors are constantly stored locally on the KIT, or additionally transmitted if there is a connection to the BASE.
  • All recorded data is transmitted to the BASE via a wireless technology, preferably via Bluetooth Low Energy, if there is a connection to the BASE.
  • the BASE fulfills various functions:
  • Laser position measurement of the player and the opponent This can be a so-called 2D laser. Also 3D laser can be used. The laser is shown schematically and designated 32.
  • a laser for position measurement of the player position with respect to the Tennispieler chargedsvorraum 30 can be used in particular "scanning laser” as they are also commercially available for robot applications, for example, a laser scanner from SICK type LMS 111-10100 can be used, which is a measuring distance from 0.5 m to 20 m and has a viewing angle of 270 degrees Such and similar lasers have a scanning frequency of 25 Hz or 50 Hz and detect any object, including tennis players with an angular resolution of 0.5 degrees and an accuracy of + Thus, the position of the player during the game can be detected and stored over time so that the position information can be linked to the data from the at least one device 10. Thus, it can be determined where the player is just before reaching a point, for example, also where it was when the ball signal of the sensor was generated The position information can also be linked to the voice inputs. This can also be done first in the server
  • one camera per half seat can be used.
  • commercially available cameras from Sony or Clover Electronics can be used.
  • the cameras 34 which the players can track based on the laser position detection controlled by the BASE 30 (so-called pan / tilt / zoom cameras), corresponding commercially available cameras from the company DLink or Sony or Panasonic available from the computer of the BASE 30 via a Interface (eg Ethernet or RS-422) can be operated so that the camera follows the player.
  • the computer of the base knows due to the laser measurement by means of the laser 31, the position of the player / or the player and can control the camera accordingly. This gives video data of the whole place and also more specific video data for each player. Their evaluation is preferably carried out only in the server 35 and not already in the device 30, although this is also possible.
  • the data on the player position and optionally the video data preferably originate from a tennis game detection device, as described. However, this data could also come from a separate laser measuring device or from a separate video camera device. This is not significant for the combination of this data with the data from the device 10, provided that the laser position data and / or the video data are provided with the same time information or time line as the data from the device 10, so that for the running on the server Program the assignment of the data to each other is possible.
  • the server 35 performs various functions such as
  • strokes are extracted from the thousands of movement data by scanning for stored movement patterns. For each potential hit event determined, a timestamp is set for the most likely hit (ball hits racket - peak in the movement curve).
  • the movement data are depth-analyzed. It is logged for each possible impact event, what a stroke and in what execution it could have been (for example, forehand volley or backhand basic strike slice).
  • Step 2 Synchronization with microphone data
  • the microphone data has already been pre-filtered on the KIT.
  • the determined impact sound data are now synchronized with the data from the motion sensors.
  • the result is a draft of a hit event table, where the possible beat events from both sources (sensors / microphone) are recorded chronologically.
  • the microphone data are depth-analyzed.
  • Step 3 Synchronization of the two results Filtering of the possible impact events is now carried out with the aim of eliminating false events. All events which have no match within a time bandwidth of approx. 0.5 seconds are deleted from the beat event list. If the motion sensors register a service movement but the microphone does not detect a ball impact, this event is cleared. Probably it was a "dry exercise” or a false detection of the sensors. This results in an adjusted impact event table, which is supplemented per beat with the impact attributes of the previous analyzes.
  • Step 4 Evaluation of Speech Recognition
  • the speech recognition data are evaluated, looking primarily for the point information. This is unique and can only be A or B
  • a timestamp "point" is set on the timeline and at the same time the result is calculated, which can be calculated based on the rules of the game and the information on who started the service
  • Point information is therefore always supplemented by the result and the service information.
  • Step 5 Synchronization Beat Event Table with Speech Recognition Data
  • the first point is called first.
  • the backlash table is searched backwards until the last service is found. If the player is not serving, the last return must be found.
  • Step 6 Synchronization position data
  • the position data recorded by the BASE are synchronized with the point information on the server in time, and the position information is included in the beat event table as additional information.
  • Step 7 - Video Sync The videos recorded by the 4 cameras are provided with the Match-ID on the server and synchronized exactly in time.
  • Step 8 Calculating the Point Video Sequence The four video files will be in one next
  • Movement Pattern Library (Player Independent) A variety of motion patterns are stored on the server. In the analysis of motion sensor data from the KIT, the analysis software checks if there is a match of a registered motion with one or more stored motion patterns. If this is the case, the motion pattern that has the greatest match is chosen. This is then logged as a hit event in the hit event table (with all stored details such as forehand / backhand, Swirl, etc.) - In the movement pattern library, swipe patterns are stored for right- and left-handed people, for double or one-handed forward and / or backhand strokes. The motion pattern library includes both patterns of strokes in which the KIT is worn on the whip arm as well as the non-whip arm. Similar to speech recognition, these are "player independent" swipe patterns, and to improve the recognition rate and accuracy, the player can use the KIT on the server to create their own swipe movement library.
  • the player can use the Personal Strike Pattern mode during training with the KIT to create custom flicks in his personal movement pattern library.
  • the player is first asked to provide general information: forehand - one-handed, double-handed, backhand - one-handed, double-handed, KIT with or without arms, left or right-handed.
  • the entries are made via the function keys.
  • Blowing movements performed for recording. If he e.g. If he selects the topspin of Topspin, he must make 10 strikes in a row, which will be recorded. If he thinks the punches are good, he saves them. Then he continues with the next beat pattern.
  • the analysis software checks as a priority whether personal movement patterns are present and a match is given. Only if no agreement can be established, the system checks secondarily whether there is a match with a beat pattern of the player-independent library.
  • the invention thus relates to a device for detecting tennis game data, wherein the device is configured as a device that can be worn on the body of a player or at most as a wholly or partly arranged in / on the racket, characterized in that the device is a multiple number of data acquisition devices for detecting different tennis game-specific data.
  • the device is a multiple number of data acquisition devices for detecting different tennis game-specific data.
  • at least two, preferably more than two, of the group speech detection device with a microphone, ball impact detection device, motion sensor device, key input device for beat information, physiology sensor device are provided as data acquisition devices.
  • the device is designed as a device that can be worn on the player's arm, or that the device is designed as a device that can be worn on the chest of the player, or that the device is configured as a device that can be worn on the player's head.
  • the device may comprise the speech recognition device with a microphone, by which voice inputs of the player can be detected and evaluated and is characterized in that the voice input device comprises an activatable by the player activation means by the activation of voice inputs can be entered or at its non-activation voice inputs are not entered ,
  • the device can be characterized in that the speech recognition unit is designed to recognize a speaker-dependent vocabulary and / or to recognize a speaker-independent vocabulary.
  • the manually different by the control of the device manually inputable operating sequences and following the manual input first recognizable speech input, wherein the manual sequence and the speech input in combination are recognizable as an assignment indicating whether the input is made for the player or for his opponent.
  • the controller is set up in such a way that a voice input made after the assignment can be checked for correctness in relation to the assignment of player or opponent.
  • the activating means may be a finger-operated switch or button.
  • the activation means can be formed by a motion sensor in the device, which is designed such that thereby a rotation of the wrist or a tapping on the device is recognizable as activation.
  • the apparatus may comprise a vibration generator operable to confirm receipt and / or recognition and / or non-recognition of voice inputs by the controller of the apparatus.
  • the device can have a visually readable display, in particular an alphanumeric display, which can be actuated by the controller of the device for confirming the receipt and / or the recognition and / or the non-recognition of voice inputs.
  • the device can have a visually readable display, which can be controlled by the controller of the device for displaying the game result, wherein the controller is configured in particular for calculating and displaying the result based on the voice inputs evaluated by the controller.
  • the device preferably comprises a motion sensor device for detecting tennis striking movements of the player and is designed to store the motion sensor data.
  • One to three acceleration sensors are provided in the motion sensor device and in particular additionally one to three gyroscopic sensors and in particular additionally one to three compass sensors.
  • the device is a device wearable on an arm of the player, it is preferred that the device is configured with a selection input means for inputting whether strokes are received and stored on the player's strike arm or the player's non-strike arm and / or or the device is a device wearable on the chest of the player and / or a device wearable on the player's head and provided with a selection input means permitting the entry of the carrying position into the device.
  • control of the device for evaluating the motion sensor signals is designed, in particular for comparing the motion sensor signals with stored in a memory of the device sensor signal value tables. Further, it is preferred that the device is configured to store a ball signal that signals the impact of a tennis ball on the tennis racket of the player, possibly additionally the impact of the ball on the tennis court and / or on the opponent's racket.
  • the ball signal can be generated in the device and / or the device can be designed to receive an externally generated ball signal.
  • the ball signal can be generated by a sensor in the device, in particular in that the impact of the ball can be detected acoustically via a microphone of the device and can be evaluated by a detection device of the device as a ball signal.
  • the device has two microphones, one of which is intended for the detection of the ball impact and the other for voice input, and in particular that the microphone for the ball impact is constantly receptive and the microphone for voice input only by an activation by the player receptive is.
  • only one microphone is provided and thus the same microphone is used for the voice inputs and for the acoustic detection of the respective ball impact.
  • the device can be designed with a physiological sensor for detecting the heart rate of the player, and / or with a physiological sensor for detecting the oxygen saturation of the blood and / or a physiological sensor for measuring perspiration and / or a physiological sensor for measuring blood pressure.
  • the control of the device can be designed for the evaluation of at least two, in particular three and in particular four of the data acquisition devices. It is preferred that the device has at least one interface, which is designed for dispensing stored data from the data acquisition devices and / or for outputting evaluation results from the data of the data acquisition devices, wherein the
  • the interface is a wireless interface.
  • a tennis game detection device comprising a computer and designed to receive and process the data signals from at least one of the devices described.
  • the tennis game detection device may comprise at least one laser scanner, by which at least the impact position of one of the players on the tennis court can be determined when placing the tennis game evaluation device at a tennis court.
  • the tennis game detection device may be configured to synchronize the determined beat position with the recorded and / or generated data signals from the device carried by the player.
  • the tennis game detection device may include at least one video camera for receiving at least one video camera
  • the tennis court and in particular include two video cameras for receiving both halves of the tennis court.
  • the at least one video camera can be controllable by the position signal of the at least one laser scanner, such that focused player recordings can be generated.
  • the invention relates to a verarbei ⁇ processing program, which is designed for processing the data from at least one of the devices described in that it is designed for processing and combining data from at least two of the data acquisition devices of the apparatus.
  • the data processing program can be designed to process and combine motion sensor information and / or orientation sensor information and / or ball signal information from the device as a function of game point results.
  • the data processing program can contain at least one library of sensor signals which contains tables of characteristic sensor signals from sensors, in particular motion sensors, of the device and tennis game information associated with the characteristic sensor signals, in particular information about the type of impact.
  • the data processing program may be designed so that the library contains both characteristic motion sensor signals of the beat arm movement containing tables and tables of characteristic motion sensor signals of the non-impact arm, and that the program is designed to evaluate information from the device, which indicates whether the device has been worn on the beater arm or on the non-beater arm during player acquisition.
  • the library contains at least one table of characteristic motion sensor signals for supporting the device on the player's chest, or contains at least one table of characteristic motion sensor signals for supporting the device on the player's head, or contains characteristic motion sensor signals the device is arranged wholly or partly in the racket.
  • the library preferably contains player-independent tables containing pre-stored motion sensor signals, and the library contains player-dependent tables into which movement movements typical of a single player are stored. sensor signals are stored.
  • the data processing program is further configured for processing player position data, in particular from a tennis game detection device, and / or for processing video information, in particular from a tennis game detection device.

Abstract

La présente invention concerne un dispositif (10) conçu pour détecter des données de jeu de tennis, se présentant de préférence sous forme de dispositif pouvant être porté sur le corps du joueur, notamment pouvant être porté sur un bras du joueur à l'aide d'un bracelet (12). Il comprend par exemple un appareil de reconnaissance vocale équipé d'un microphone et notamment aussi de capteurs de mouvement ou d'autres capteurs. Les capteurs permettent de détecter des données du joueur pertinentes pour le jeu de tennis et de les analyser ultérieurement.
PCT/CH2012/000199 2011-08-26 2012-08-23 Dispositif de détection de données de jeu de tennis WO2013029191A1 (fr)

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Application Number Priority Date Filing Date Title
EP12756066.2A EP2747853A1 (fr) 2011-08-26 2012-08-23 Dispositif de détection de données de jeu de tennis
CN201280048507.3A CN103857446B (zh) 2011-08-26 2012-08-23 用于捕捉网球比赛数据的设备及其数据处理方法
US14/240,833 US20140206481A1 (en) 2011-08-26 2012-08-23 Apparatus for capturing tennis play data

Applications Claiming Priority (2)

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CH1397/11 2011-08-26
CH01397/11A CH705403A1 (de) 2011-08-26 2011-08-26 Vorrichtung zur Erfassung von Tennis-Spieldaten.

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WO2013029191A1 true WO2013029191A1 (fr) 2013-03-07

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US20140206481A1 (en) 2014-07-24
CH705403A1 (de) 2013-02-28

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