EP4176944A1 - Système de télémétrie pour l'analyse de mouvement d'un ski de descente en cours d'utilisation - Google Patents

Système de télémétrie pour l'analyse de mouvement d'un ski de descente en cours d'utilisation Download PDF

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Publication number
EP4176944A1
EP4176944A1 EP22204076.8A EP22204076A EP4176944A1 EP 4176944 A1 EP4176944 A1 EP 4176944A1 EP 22204076 A EP22204076 A EP 22204076A EP 4176944 A1 EP4176944 A1 EP 4176944A1
Authority
EP
European Patent Office
Prior art keywords
detection unit
ski
telemetry system
mobile detection
physical quantities
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
EP22204076.8A
Other languages
German (de)
English (en)
Inventor
Gustavo SANGIORGI
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Blue Biesse Con Socio Unico Srl
Original Assignee
Blue Biesse Con Socio Unico Srl
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 Blue Biesse Con Socio Unico Srl filed Critical Blue Biesse Con Socio Unico Srl
Publication of EP4176944A1 publication Critical patent/EP4176944A1/fr
Pending legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C5/00—Skis or snowboards
    • A63C5/06—Skis or snowboards with special devices thereon, e.g. steering devices
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C11/00—Accessories for skiing or snowboarding
    • A63C11/003—Signalling devices, e.g. acoustical or visual
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C2203/00—Special features of skates, skis, roller-skates, snowboards and courts
    • A63C2203/12—Electrically powered or heated
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C2203/00—Special features of skates, skis, roller-skates, snowboards and courts
    • A63C2203/18—Measuring a physical parameter, e.g. speed, distance
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C2203/00—Special features of skates, skis, roller-skates, snowboards and courts
    • A63C2203/22—Radio waves emitting or receiving, e.g. remote control, RFID
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C2203/00—Special features of skates, skis, roller-skates, snowboards and courts
    • A63C2203/24—Processing or storing data, e.g. with electronic chip

Definitions

  • the present invention relates to a telemetry system for the movement analysis of a downhill ski during use.
  • the present invention relates to a telemetry system for the real-time movement analysis of a downhill ski during a ski race, a use to which the following disclosure will make explicit reference without thereby losing generality.
  • ski athletes go down one at a time along the ski slope where the sport competition takes place, and the ski athlete who travels along said slope in the shortest time wins.
  • the only information available about the ski athlete's sports performance during the ski race is the total time taken to travel along the slope to the finish line, and the various split times detected at predetermined points on the slope.
  • Aim of the present invention is to provide a simple and inexpensive detection system, easily and quickly installable, which is capable of detecting in real time, during the ski athlete's descent along the ski slope and for each participant in the ski race, a series of physical quantities relative to the ski fitted during the descent.
  • a telemetry system for the real-time movement analysis of a downhill ski during use as defined in Claim 1 and preferably, though not necessarily, in any one of the dependent claims.
  • number 1 denotes, as a whole, a telemetry system for the real-time movement analysis of a downhill ski, which is configured so as to be able to measure, in real time, a series of physical quantities relative to the downhill ski during use, i.e. during the descent along a ski slope.
  • the telemetry system 1 can be advantageously used to analyze a ski athlete's performance during a ski race, i.e. while the ski athlete descends with the skis along the ski slope where the sports competition is taking place.
  • the physical quantities measured moreover include the acceleration to which the ski is subjected and/or the inclination of the ski with respect to a predetermined inertial reference, in both cases measured in real time during the descent along the ski slope.
  • the physical quantities measured preferably include the acceleration along the roll and/or pitch and/or yaw axes to which the ski is subjected during the descent along the ski slope, and/or the values of the roll angle and/or pitch angle and/or yaw angle of the ski during the descent along the ski slope.
  • the physical quantities measured furthermore include the geographic position of the ski (namely the values of latitude, longitude and altitude) and/or the value of the ambient temperature around the ski during the descent along the ski slope.
  • the telemetry system 1 comprises at least one and more conveniently a plurality of mobile detection units 2, and a remote electronic apparatus 4 which is capable of communicating with each of the detection units 2.
  • each detection unit 2 is adapted to be rigidly attached onto a generic downhill ski 3 so as to form, with the latter, a single sport equipment 5 capable of sliding over snow and/or ice.
  • each detection unit 2 is structured so as to be able to measure, continuously or cyclically, the values of a series of physical quantities, which include the momentary acceleration to which the detection unit 2 is subjected and/or the momentary inclination of the detection unit 2 with respect to a predetermined inertial reference.
  • each detection unit 2 When firmly attached to the ski 3, each detection unit 2 is therefore capable of measuring/sampling the momentary acceleration and/or inclination of the ski 3 while it is used to descend along any ski slope.
  • the remote electronic apparatus 4 is structured to wirelessly communicate with each of the detection units 2, so as to receive, preferably in real time, a data stream containing the measurements performed by each detection unit 2, and is also provided with a user interface that is configured to display, and optionally also reprocess and/or compare, the values indicative of the physical quantities separately measured by each mobile detection unit 2.
  • the user interface of the remote electronic apparatus 4 is moreover programmed/configured so as to also reconstruct and display the time course of at least one and more conveniently all of the physical quantities measured by each mobile detection unit 2.
  • each detection unit 2 is preferably structured so as to measure, continuously or at more or less regular intervals, the value of the acceleration to which the detection unit 2 is subjected along a first triplet of Cartesian reference axes.
  • each detection unit 2 is preferably structured so as to measure, continuously or at more or less regular intervals, the value of the inclination of the detection unit 2 with respect to a second triplet of Cartesian reference axes, preferably stationary in space.
  • each detection unit 2 is moreover adapted to be attached onto the ski 3 so that one of the Cartesian axes of the first triplet of Cartesian reference axes is substantially parallel to the longitudinal axis of the ski 3.
  • one of the axes of said second triplet of Cartesian reference axes is preferably substantially vertical.
  • each mobile detection unit 2 is preferably structured so that it can measure, continuously or at more or less regular intervals, the value of the acceleration to which the ski 3 is subjected along the axes of roll, pitch and yaw of the ski, and/or the values of the roll angle and/or pitch angle and/or yaw angle of the ski.
  • each detection unit 2 is moreover structured so as to determine, continuously or at more or less regular intervals, its geographic position (namely the values of longitude, latitude and altitude).
  • each detection unit 2 is finally structured so as to measure, continuously or at more or less regular intervals, the value of the ambient temperature around the same detection unit 2.
  • the telemetry system 1 is therefore capable of also acquiring the momentary geographic position of the ski 3 and/or the instantaneous values of the ambient temperature around the ski 3.
  • each detection unit 2 is moreover structured/ configured to be uniquely identifiable by the remote electronic apparatus 4, so that the sports equipment 5 formed by the detection unit 2 and the ski 3 can be uniquely linked with an individual skier/athlete.
  • each mobile detection unit 2 preferably has a plate-like structure and is preferably adapted to be firmly attached onto the back 3a of the ski 3.
  • each detection unit 2 is preferably adapted to be attached onto the back 3b of the downhill ski 3 in a rigid and stable, though easily removable manner.
  • each detection unit 2 is preferably structured so as to be attached onto the back 3a of the downhill ski 3, more or less in the center of the ski 3, so as to form the raised anchoring base where the ski binding device (not shown) is to be attached.
  • the detection unit 2 preferably has an oblong plate-like structure and is adapted to be firmly attached onto the back 3a of the ski 3, more or less in the center of the ski, so as to interpose itself between the downhill ski 3 and the relative ski binding device (not shown).
  • each detection unit 2 preferably comprises: a rigid outer casing 6, which is preferably made of plastic and/or composite material, and is adapted to be firmly fixed onto the back 3a of the ski 3, preferably by one or more anchoring screws of known type (not shown); a detection and data-transmission electronic device 7, which is housed within the rigid casing 6, and is adapted to measure and wirelessly transmit the values of the physical quantities listed above directly to the remote electronic apparatus 4; and an electric energy accumulator 8 preferably of a rechargeable and/or removable type, which is housed within the rigid casing 6 and powers the detection and data-transmission electronic device 7.
  • the rigid casing 6 is preferably made up of two rigid and complementary-shaped half-shells that are preferably made of plastic material and are firmly coupled together preferably substantially in a fluid-tight manner.
  • the two half-shells may also be made of metal or composite material.
  • the detection and data-transmission electronic device 7 preferably includes: a measurement module 9 that is structured so as to measure, continuously or at more or less regular intervals, the values of the physical quantities listed above; a data transmission module 10 that is structured so as to wirelessly transmit a data stream to the remote electronic apparatus 4; and a microprocessor 11 that controls and coordinates the operation of the measurement module 9 and of the data transmission module 10, so as to measure and send, preferably in real time, a data stream containing the various measurements performed by the measurement module 9, directly to the remote electronic apparatus 4.
  • the detection and data-transmission electronic device 7 additionally comprises also: a main memory module 12, preferably of an immovable type, within which the microprocessor 11 can temporarily and/or stably store all or part of the data stream generated by the measurement module 9, i.e. all or part of the sequence of measurements performed by the measurement module 9; and optionally also an auxiliary memory module 13 of a removable/extractable type, within which the microprocessor 11 can temporarily and/or stably store all or part of the data stream generated by the measurement module 9, i.e. all or part of the sequence of measurements performed by the measurement module 9.
  • a main memory module 12 preferably of an immovable type, within which the microprocessor 11 can temporarily and/or stably store all or part of the data stream generated by the measurement module 9, i.e. all or part of the sequence of measurements performed by the measurement module 9.
  • the detection and data-transmission electronic device 7 is finally also provided with a display device and/or a control panel (not shown in the figures), which is/are located outside of the rigid casing 6 or are easily accessible from the outside, and preferably allow a person, respectively, to check the status of and issue commands to the detection and data-transmission electronic device 7.
  • a display device and/or a control panel not shown in the figures
  • the detection and data-transmission electronic device 7 is preferably provided with a series of signaling LEDs and/or control buttons, that allow a person, respectively, to check the status of and issue commands to the detection and data-transmission electronic device 7.
  • the measurement module 9 is provided with an acceleration electronic measuring device 14 and/or an inclination electronic measuring device 15.
  • the acceleration electronic measuring device 14 is adapted to measure the value of the acceleration to which the detection unit 2 is subjected, and preferably includes one or more accelerometers capable of measuring, in real time, the acceleration along predetermined directions.
  • the inclination electronic measuring device 15 is adapted to measure the value of the inclination of the detection unit 2 with respect to a predetermined inertial reference, and preferably includes one or more inclinometers capable of measuring, in real time, the inclination with respect to said predetermined reference.
  • the inclination electronic measuring device 15 may also include at least one electronic gyroscope and/or at least one magnetometer, both capable of determine, in real time, the orientation in space of the mobile detection unit 2.
  • the acceleration electronic measuring device 14 preferably comprises a group of accelerometers, which are located within the rigid casing 6 one orthogonal to the other, so as to measure the acceleration of the detection unit 2 along a first triplet of Cartesian reference axes that is preferably oriented so that one of the Cartesian reference axes is substantially parallel to the longitudinal axis of the downhill ski 3 when the detection unit 2 is integral with the ski 3.
  • the acceleration electronic measuring device 14 is capable of measuring the acceleration to which the detection unit 2 is subjected along the roll, pitch and yaw axes of the ski.
  • the accelerometer(s) of the acceleration electronic measuring device 14 are preferably MEMS accelerometer sensors (acronym for Micro Electro-Mechanical Systems).
  • the inclination electronic measuring device 15 is capable of measuring the inclination of detection unit 2 with respect to a second triplet of fixed Cartesian reference axes X, Y and Z, which is preferably oriented so that one of its Cartesian reference axes, namely the Cartesian axis Z, is substantially vertical.
  • the inclination electronic measuring device 15 is therefore capable of measuring, in real time, the instantaneous roll, pitch and yaw angles of the ski.
  • the inclination electronic measuring device 15 preferably comprises: a group of inclinometers that are placed within the rigid casing 6 one orthogonal to the other, so as to detect the inclination of detection unit 2 with respect to a triplet of Cartesian reference axes; and an electronic gyroscope which is adapted to detect the orientation in the space of the mobile detection unit 2.
  • the inclinometer(s) and/or the electronic gyroscope are preferably MEMS sensors (acronym for Micro Electro-Mechanical Systems).
  • the measurement module 9 moreover includes also a GPS receiver 16 (acronym for Global Positioning System) or similar, which is adapted to receive radio signals coming from a series of artificial satellites orbiting the earth, and to process said radio signals so as to calculate/determine, substantially in real time, the momentary geographic position (or rather the geographic coordinates) and possibly also the longitudinal, transversal and vertical speed of the detection unit 2.
  • a GPS receiver 16 (acronym for Global Positioning System) or similar, which is adapted to receive radio signals coming from a series of artificial satellites orbiting the earth, and to process said radio signals so as to calculate/determine, substantially in real time, the momentary geographic position (or rather the geographic coordinates) and possibly also the longitudinal, transversal and vertical speed of the detection unit 2.
  • the GPS receiver 16 is an electronic component readily available on the market and therefore won't be further described.
  • the measurement module 9 is finally also provided with one or more temperature sensors (not shown in the figures), which are capable of measuring the ambient temperature outside the rigid casing 6, around the detection unit 2.
  • the data transmission module 10 is an electronic component readily available on the market and therefore won't be further described, unless to point out that it is capable of wirelessly transmitting data to the remote electronic apparatus 4, preferably using the IEEE 802.11 standard (traditionally called the Wi-Fi standard) and/or the IEEE 802.16 standard (traditionally called the WiMAX standard) and/or the Bluetooth standard, or similar.
  • the remote electronic apparatus 4 preferably comprises: one or more stationary transceiver units 17 that are placed or may be placed in proximity to or along the ski slope, i.e. in proximity to or along the race course, so as to be able to receive radio signals emitted by the various mobile detection units 2 preferably, though not necessarily, without interruptions along the entire ski slope, i.e. the race course; and one or more fixed or portable computers 18 that are electronically connected to the stationary transceiver unit(s) 17 so as to receive the data coming from the individual detection units 2, and are provided with a user interface that is configured to display, preferably in real time, the values of the physical quantities measured by each mobile detection unit 2.
  • the user interface of the computer (s) 18 is preferably programmed/configured so as to select, based on a command given by the user, a mobile detection unit 2 among those momentarily connected/ available, and then to display the values of the physical quantities measured by said mobile detection unit 2.
  • the user interface of the computer (s) 18 is programmed/configured so as to identify each mobile detection unit 2 and then display, preferably in real time, the values of the physical quantities measured by said mobile detection unit 2.
  • the user interface of the computer(s) 18 is moreover programmed/configured so as to reconstruct the time course of the values of at least one and, more conveniently, all of the physical quantities measured by each mobile detection unit 2, and/or the trajectory followed by each detection unit 2 as the ski 3 descends along the ski slope.
  • the user interface of the computer(s) 18 is finally programmed/configured so as to also link the instantaneous values of at least one and, more conveniently, all the physical quantities measured by the various mobile detection units 2, with the geographic position where the same values were measured.
  • the detection unit 2 attached onto one of the athlete's skis 3 continuously measures the acceleration and inclination of the ski 3, the ambient temperature around the skis 3, transmitting the measured values directly to the remote electronic apparatus 4.
  • the detection unit 2 moreover continuously transmits the geographic position of the detection unit 2 to the remote electronic apparatus 4, so as to allow the remote electronic apparatus 4 to reconstruct the trajectory followed by the athlete/skier along the ski slope.
  • the telemetry system 1 allows to analyze and evaluate, in real time, the ski athlete's performance during the ski race without applying electronic devices directly on the athlete's body.
  • the telemetry system 1 is easily transportable and therefore can be quickly set up on the race course in conjunction with the ski race.
  • the mobile detection units 2 may be structured to be at least partially embedded in the downhill ski 3.
  • the signaling LED(s) of the detection and data-transmission electronic device 7 may be replaced by a TFT display or the like.
  • the data transmission module 10 of the detection and data-transmission electronic device 7 may communicate wirelessly with the remote electronic apparatus 4 by using UMTS and/or LTE standards and the cellular telephone network.
  • the stationary transceiver unit(s) 17 of the remote electronic apparatus 4 would consist of the transceiver station(s) of the cellular telephone network that are closest to the ski slope.

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EP22204076.8A 2021-10-28 2022-10-27 Système de télémétrie pour l'analyse de mouvement d'un ski de descente en cours d'utilisation Pending EP4176944A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT102021000027707A IT202100027707A1 (it) 2021-10-28 2021-10-28 Sistema di telemetria per l'analisi del movimento di uno sci da discesa durante l'utilizzo

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EP4176944A1 true EP4176944A1 (fr) 2023-05-10

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EP22204076.8A Pending EP4176944A1 (fr) 2021-10-28 2022-10-27 Système de télémétrie pour l'analyse de mouvement d'un ski de descente en cours d'utilisation

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EP (1) EP4176944A1 (fr)
IT (1) IT202100027707A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6924764B1 (en) * 2004-04-28 2005-08-02 Yu-Yu Chen Dynamic information monitoring system employing acceleration signal and global positioning signal for skiing exercise
US7433805B2 (en) * 1994-11-21 2008-10-07 Nike, Inc. Pressure sensing systems for sports, and associated methods
US20180361221A1 (en) * 2015-06-23 2018-12-20 Ipcomm Llc Synchronizing Data Collection of Motion and Ground Reaction Force with the Start of Sporting Activities

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7433805B2 (en) * 1994-11-21 2008-10-07 Nike, Inc. Pressure sensing systems for sports, and associated methods
US6924764B1 (en) * 2004-04-28 2005-08-02 Yu-Yu Chen Dynamic information monitoring system employing acceleration signal and global positioning signal for skiing exercise
US20180361221A1 (en) * 2015-06-23 2018-12-20 Ipcomm Llc Synchronizing Data Collection of Motion and Ground Reaction Force with the Start of Sporting Activities

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Publication number Publication date
IT202100027707A1 (it) 2023-04-28

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