JP2019517304A - Acquisition support real-time device of board sports - Google Patents

Abstract

The invention is directed to a learning support real time device (1) for a person playing such a sport of board sports like surfing. Said acquisition aided real time device comprises:-a sensor set (5) adapted to measure the position, velocity and acceleration of the surfboard (3) in a Cartesian coordinate system associated with the board, said The sensor set is connected to: a sensor set;-a measurement data processing unit (7) for determining a deterministic dynamic behavior model of the surfboard (7);-a deterministic dynamic behavior model of the board At least one signal means (9) for providing in real time information about the person to such a sport and / or to a third party. The invention is also directed to a surfboard comprising such a device. [Selected figure] Figure 1

Description

  The present invention relates to the field of board sports, more precisely to surfing and its acquisition.

  Mastery of surfing and brushing up are done by training under the view of the trainer. The trainer sees the surfer turn and proposes a correction to the surfer who seeks to take the correct stance by trial and error, depending on the shortcomings he has identified.

  Usually, at the time of a surf class, the trainer needs to send instructions from the beach, in a manner of gestures or sounds, to the novice surfer on the action to be taken by the surfer.

  Generally, for novice surfers, the take-off phase is one of the most difficult stages to learn and master. It is the stage where the surfer moves from the horizontal plane to the vertical plane as he enters the valley of the waves during the paddling stage which is the start stage. Therefore, it is necessary to select an optimal moment to take off. Currently, this optimal moment is based on subjective and uncertain estimates of the speed of the board by surfers and trainers.

  Within the course of learning of surfing, it is very difficult for novice surfers to estimate this optimal moment and they tend to stand up too early or too late. The consequences of rising too early or too late are sometimes dangerous, due to the false beginning of the wave, which often suppresses the surfer's advance on the wave, and possible collisions with the board in most cases. It is a fall that can be obvious.

  The trainer, therefore, needs to signal the novice surfer a sound cue so that he stands up at the correct time to guarantee the quality of the surf. Thus, unless the take-off phase is learned by the surfer, the surfer needs an intervention of the trainer, which therefore can not emphasize other technical aspects of the teaching. This learning phase is often found to be heavy, time consuming, challenging and cumbersome.

  The purpose of the present invention is thus to allow this novice surfer to make this mastery stage so fast independent as to choose the best moment he needs to get up depending on the position, velocity and acceleration of the surfboard. It is to facilitate.

To that end, the invention is directed to a learning support real-time device for board sports such as surfing, such as surfing, which includes:
A sensor set adapted to measure the position, velocity and acceleration of the surfboard in a Cartesian coordinate system associated with the board, said sensor set being connected to:
A measurement data processing unit for determining the deterministic dynamic behavior model of the surfboard,
At least one signal means for providing in real time information to the surfer and / or to a third party about the deterministic dynamic behavior model of the board.

  Advantageously, the information on the behavioral model relates to at least one action taken by the surfer, in particular the optimal moment for the surfer to start the takeoff phase.

  As novice surfers can be trained without instructors especially for this take-off stage, learning at this stage will be faster and training with trainers will be optimized by other techniques of this board sport.

Advantageously, the signaling means comprise the following elements, which can be used alone or in combination:
A sound signal, thus replacing the signal emitted by the trainer, a sound signal;
-A light signal seen by a third party such as a surfer and / or a trainer;
A screen adapted to display information about the dynamic behavior of the surfboard, viewed by the surfer, a screen.

  Advantageously, the device comprises a data storage unit connected to the sensor set and to the data processing unit.

Advantageously, the device also includes communication means adapted for the following, according to the options available singly or in combination:
Emitting a signal received by at least one of the signaling means towards a third party such as a trainer;
Allow access to the data stored in the storage unit, which makes it possible to specifically download the recorded data for analysis when the training is finished;
Said information, which receives the information sent by the third party, is resent in real time to the surfer by at least one of the signaling means.

  Advantageously, the device also comprises an on-board camera adapted to capture a surfer.

  Advantageously, said camera is connected to communication means adapted to transmit the image in real time to a third party.

  Advantageously, said camera is also connected to a data storage unit adapted to record and / or store images from the camera.

Advantageously, the device comprises two parts:
A base intended to be fixed to the surfboard by means of fixing means, and parts removable with respect to the base, the two parts cooperating together to constitute a waterproof assembly.

  The present invention is also directed to a surfboard comprising the learning aid real time device defined by any one of the previously defined embodiments.

  The invention will be better understood on reading the following description of a preferred embodiment, given by way of non-limiting and illustrative example, with reference to the figures.

Fig. 3 represents a device according to an embodiment of the invention fixed to a surfboard. FIG. 2 represents the waves reaching the surfboard of FIG. 1 and the coordinate system associated with the surfboard. 2 depicts an embodiment of the apparatus of FIG. 1 including a fixed base and a removable part.

With reference to FIG. 1 and according to a first general embodiment of the invention, a learning aid real-time device 1 for board sports such as surfing includes:
-A sensor set 5, adapted to measure position, velocity and acceleration according to the three axes associated with the surfboard, such as an inertial unit that combines a three-axis accelerometer, a three-axis gyroscope and a magnetometer , Sensor set 5;
A processing unit 7 of measurement data, adapted to determine a deterministic dynamic behavior model of the surfboard from the physical values measured by the sensor;
-At least one signaling means 9 adapted to convey in real time information about the behavioral model to the surfer and / or a third party.
This device can be distributed at several locations on the board. In particular, all or part of the signaling means 9 can be remote to the sensor set 5 and to the data processing unit 7 and are logically connected to them.

  According to one embodiment of the invention, the sensor set 5 comprises position and motion sensors intended to identify the interaction between the surfer and the waves. It generally includes a 3-axis gyroscope, a 3-axis accelerometer, and a 3-axis magnetometer.

  According to another embodiment, the sensor set may comprise a GPS receiver or a GPS receiver combined with another sensor such as a 3D accelerometer. The use of a GPS receiver makes it possible to make the measurement of the position and velocity of the surfboard more accurate and thus obtain a more accurate starting of the signal means.

  The device 1 thus makes it possible to always measure the rotation of the angles of X, Y and Z (see coordinate system 20 shown in FIG. 2) and the corresponding velocity and acceleration around which the board changes 9 It has freedom.

  Thus, the surfer 22, who determines the waves 24 to catch, paddles towards the shore and thus according to a constant width of angle and angular velocity about the Z axis.

  As the wave approaches and begins to pass under board 3, board 3 then tilts according to the width of the velocity and angular acceleration, at an angle about the Y axis.

  Finally, the paddling action also causes the rotation of the board 3 around the X axis.

  The data processing unit 7 incorporated in the device comprises a calculation algorithm which determines the deterministic dynamic behavior model of the surfboard 3 based on the physical values coming from the sensor 5.

  This deterministic dynamic behavior model of the surfboard 3 is predefined by a predictive model taking into account the interaction between the surfer 22 and the surfboard 3. This prediction model makes it possible to predict the behavior of the board 3 according to the behavior of the surfer.

  Information about the board's deterministic dynamic behavior model is then sent via signal means 9 to the surfer 22 and / or to a third party.

  The information on the deterministic dynamic behavior model relates to at least one action taken by the surfer.

  According to an embodiment of the invention, this deterministic dynamic behavior model makes it possible to determine the best moment to start up or take off phase. Thus, the action of the surfer is to start the takeoff phase.

  According to another embodiment of the invention, this behavior model makes it possible to determine the lack of leanness from the surfer, for example before the board during the wave riding phase. In this case, the action of the surfer is to change the lean of the board.

  Advantageously, the signal emitted by the signaling means is specific to the nature of the information transmitted to the surfer and / or to a third party. By way of example, in the case of light signals, the color code makes it possible to specify the nature of the information (e.g. take-off, bad attitude etc).

  According to the first option, one of the signaling means is a sound signal that replaces what was originally emitted by the trainer at the beach to give instructions.

The associated sound (single or repeating, whistle or tone sounds, or also voice messages) means:
-Actions realized by the surfer, such as starting to stand up,
-Or the behavior to be corrected, such as the position of the surfer on the board, lack of speed, etc.
-Or another thing.

  According to a second option, the sound signal can replace or be combined with the light signal, such as an LED. More or less long, repeated blinks, or also its color etc. can then be accompanied by or synchronously or asynchronously with the sound signal.

  Preferably, the device is mounted in front of the board as seen by the surfer at the same time as the trainer.

  In an embodiment that is also compatible with higher performance and general form, the signal means surf the type of the written message or the action / video / diagram showing the position of the surfboard relative to the wave to be realized. Includes a screen adapted to display information viewed by a person.

  According to the option compatible with the previous embodiment, the device comprises a storage unit of data from the sensor 5 and the data processing unit 7. It makes it possible to exploit this data at the end of the exercise.

According to another option compatible with this embodiment, the device includes communication means adapted for the following, according to the options available singly or in combination:
Emitting a signal received by at least one of the signaling means towards a third party such as a trainer;
Allow access to the data stored in the storage unit, which makes it possible to specifically download the recorded data for analysis when the training is finished;
-Enabling at least one of the signaling means to send to the third party the information to be resent in real time to the surfer. It can be shown, for example, on the screen of the device 1 of the surfer, of instructions for improving the surfer, climatic conditions or other information, or also of a message of sound, or of information conveyed. It is like a light signal corresponding to the nature (takeoff, bad position etc).

  This communication means can be wired like a USB socket to which a surfer will connect when training is complete to retrieve session data.

  This means of communication can also be a Bluetooth (registered trademark) type of radio, a message displayed on the screen of the surfer while the surfer is at sea and the trainer is at the beach, Communication between the surfer and a third party can be established via a message or visual signal.

  The apparatus according to one of the previously described embodiments may also include a camera adapted and mounted to capture a surfer.

Available alone or in combination depending on the option:
-A storage unit adapted to record and store taken videos of the surfer in order to allow the surfer to see after a training session the points to be improved Camera connected to;
-A camera connected to a communication means adapted to send in real time to the screen so as to be viewable by a third party, such as a trainer at the beach.

Finally, as shown in FIG. 3, the device may comprise a case composed of two parts:
-A base 30 intended to be fixed to the surfboard by fixing means, and-parts 32 removable with respect to the base.

  The base 30 and the removable part 32 cooperate together to form a waterproof assembly

  According to one embodiment of the invention, the removable part is attached to the base by a simple fitting and the attachment is made watertight by any suitable means.

  According to one embodiment of the invention, the removable part 32 comprises a first part and a second part, the two parts constituting a recess in which the sensor 5, the processing unit 7, the signal means 9 are provided. , An assembly of electronic components, such as a storage unit, communication means 11 and a battery supplying the system.

  Preferably, at least one surface of the removable part is realized in a transparent material to pass the light signal from the signal means.

  Being able to retrieve the main part 32 of the device makes it easy to replace the power supply or recharge the device, or alternatively to parameterize the algorithm integrated in the processing unit, the video recorded from the camera etc. To enable easy access to the data contained in the device.

  The invention also relates to a surfboard comprising a device as described above.

  According to a first embodiment, the device 1 is fixed in the area of the surfboard 3 by fixing means such as an adhesive layer. As an example, the adapted fixing means (not shown here) may be an adhesive tape.

According to another embodiment, the board comprises a recess into which the device is inserted such that the top of the device and the surface of the board constitute a substantially continuous surface.

Claims (13)

A learning-aided real-time device (1) for those who play such sports of board sports like surfing,
A sensor set (5) adapted to measure the position, velocity and acceleration of the surfboard (3) in a Cartesian coordinate system associated with said board, said sensor set (5) being connected to And the sensor set (5)
A measurement data processing unit (7) for determining the deterministic dynamic behavior model of the surfboard;
-At least one signal means (9) for providing in real time information on the board's deterministic dynamic behavior model to such a sports person and / or to a third party;
Including
The signaling means for sending information on the deterministic dynamic behavior model relates to at least one activity taken by said sporter
The apparatus wherein the at least one action taken by the person playing such a sport relates to an optimal moment to begin the takeoff phase.   Device (1) according to claim 1, wherein the signal means (9) comprise a sound signal.   Device (1) according to any one of the preceding claims, wherein the signaling means (9) is light which is seen by a third person such as such a person and / or trainer. Devices, including the signal of   Device (1) according to any of the preceding claims, wherein the signaling means (9) are adapted to display information on the dynamic behavior of the surfboard and do such a sport A device, including a screen, seen by people.   Device (1) according to any of the previous claims, further comprising a data storage unit connected to the sensor set (5) and to the data processing unit (7).   Device (1) according to any of the preceding claims, adapted to emit a signal received by at least one of the signaling means towards a third party such as a trainer. A device further comprising means (11).   Device (1) according to claim 6, dependent on claim 5, further comprising communication means (11) adapted to enable access to data stored in the storage unit. .   Device (1) according to claim 6 or 7, further comprising communication means (11) adapted to receive information sent by a third party, said information being at least one of the signaling means A device that is resent in real time to the person playing such sports.   The device (1) according to any of the preceding claims, further comprising an on-board camera adapted to image the person playing such a sport.   A device (1) according to any one of claims 9 to 18 dependent on any one of claims 6 to 8, wherein the camera is adapted to transmit an image to a third party in real time. The device connected to).   Device (1) according to claim 10, dependent on claim 5 or 7, wherein the camera is connected to a data storage unit adapted to record and / or store images from the camera. apparatus. Device (1) according to any of the preceding claims, wherein said device comprises the following two parts:
A base (30) intended to be fastened to the surfboard by fastening means;
A removable part (32) relative to the base, the two parts cooperating together to form a waterproof assembly, with the removable part (32)
An apparatus comprising a case composed of: A surfboard comprising a learning support real time device (1) as defined in any one of the preceding claims.

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