EP3791400A1 - System for analyzing a pedalling technique of a cyclist and associated methods - Google Patents

System for analyzing a pedalling technique of a cyclist and associated methods

Info

Publication number
EP3791400A1
EP3791400A1 EP19742825.3A EP19742825A EP3791400A1 EP 3791400 A1 EP3791400 A1 EP 3791400A1 EP 19742825 A EP19742825 A EP 19742825A EP 3791400 A1 EP3791400 A1 EP 3791400A1
Authority
EP
European Patent Office
Prior art keywords
data
soles
pedaling
user
biomechanical
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
EP19742825.3A
Other languages
German (de)
French (fr)
Inventor
Karim Oumnia
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.)
Bal Inc
Original Assignee
Zhor Tech SAS
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 Zhor Tech SAS filed Critical Zhor Tech SAS
Publication of EP3791400A1 publication Critical patent/EP3791400A1/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
    • G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
    • G16H20/00—ICT specially adapted for therapies or health-improving plans, e.g. for handling prescriptions, for steering therapy or for monitoring patient compliance
    • G16H20/30—ICT specially adapted for therapies or health-improving plans, e.g. for handling prescriptions, for steering therapy or for monitoring patient compliance relating to physical therapies or activities, e.g. physiotherapy, acupressure or exercising
    • 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
    • A43B5/14—Shoes for cyclists
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/103—Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
    • A61B5/11—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb
    • A61B5/1124—Determining motor skills
    • 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
    • A63B24/0062—Monitoring athletic performances, e.g. for determining the work of a user on an exercise apparatus, the completed jogging or cycling distance
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
    • B62J45/00—Electrical equipment arrangements specially adapted for use as accessories on cycles, not otherwise provided for
    • B62J45/40—Sensor arrangements; Mounting thereof
    • B62J45/41—Sensor arrangements; Mounting thereof characterised by the type of sensor
    • B62J45/412—Speed sensors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
    • B62J45/00—Electrical equipment arrangements specially adapted for use as accessories on cycles, not otherwise provided for
    • B62J45/40—Sensor arrangements; Mounting thereof
    • B62J45/42—Sensor arrangements; Mounting thereof characterised by mounting
    • B62J45/421—Sensor arrangements; Mounting thereof characterised by mounting at the pedal crank
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C19/00—Gyroscopes; Turn-sensitive devices using vibrating masses; Turn-sensitive devices without moving masses; Measuring angular rate using gyroscopic effects
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P15/00—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
    • G01P15/02—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses
    • G01P15/08—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P15/00—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
    • G01P15/18—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration in two or more dimensions
    • G—PHYSICS
    • G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
    • G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
    • G16H40/00—ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices
    • G16H40/60—ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices for the operation of medical equipment or devices
    • G16H40/67—ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices for the operation of medical equipment or devices for remote operation
    • G—PHYSICS
    • G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
    • G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
    • G16H50/00—ICT specially adapted for medical diagnosis, medical simulation or medical data mining; ICT specially adapted for detecting, monitoring or modelling epidemics or pandemics
    • G16H50/30—ICT specially adapted for medical diagnosis, medical simulation or medical data mining; ICT specially adapted for detecting, monitoring or modelling epidemics or pandemics for calculating health indices; for individual health risk assessment
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B17/00—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined
    • 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
    • A63B2220/40—Acceleration
    • 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
    • A63B2220/83—Special sensors, transducers or devices therefor characterised by the position of the sensor
    • A63B2220/836—Sensors arranged on the body of the user
    • G—PHYSICS
    • G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
    • G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
    • G16H50/00—ICT specially adapted for medical diagnosis, medical simulation or medical data mining; ICT specially adapted for detecting, monitoring or modelling epidemics or pandemics
    • G16H50/70—ICT specially adapted for medical diagnosis, medical simulation or medical data mining; ICT specially adapted for detecting, monitoring or modelling epidemics or pandemics for mining of medical data, e.g. analysing previous cases of other patients

Definitions

  • the invention relates to the field of footwear and more generally that of footwear.
  • the present invention relates more particularly to a system for analyzing the pedaling technique of a cyclist.
  • biomechanical data measurement system consisting of two housings each disposed in each of the two shoe soles of the same pair, for collecting and using information on the pedaling technique of a user.
  • the shoes can be used for relaxation, formal, sports, medical, professional or simply recreational.
  • a shoe consists mainly of, on the one hand, a lower sole that protects the soles of the feet, more or less raised at the back by the heel and, on the other hand, the upper stem which wraps the foot. It can be limited to the ankle or rising.
  • the sole can be divided into two parts. An upper sole layer in direct contact with the user's foot and a lower sole layer in direct contact with the ground or more generally the external environment.
  • a shoe may also include a removable insole. In this particular case, this sole is also composed of at least one upper sole layer and one lower sole layer.
  • the inventions listed all relate to devices operating from the bicycle, such as WO 2010000369 which makes it possible to measure the output power of a cyclist: here it is a question of a force sensor drowned in a hold of a bicycle, and bolted to the cyclist's shoe.
  • This invention which utilizes an accelerometer and pressure sensors, remains a device attached to the bicycle and needs to be moved in the event of a bicycle change. Furthermore, this device allows the collection of data after the event, after the pedaling activity.
  • WO2010014242 and EP1637445 suffer from the same criticism, so that despite the variety of technological solutions proposed, no user has access to soles allowing a real-time monitoring of his pedaling activity to from data collected directly from the activity of his feet. Thus, there is a need for new systems for analyzing the pedaling technique of a cyclist.
  • the invention aims to overcome the disadvantages of the prior art.
  • the invention aims to provide a system for analyzing the pedaling technique of a cyclist, said system being reliable, robust, and to monitor the activity of the cyclist in real time and over a period of time more long thanks to improved autonomy.
  • the invention further aims to provide a method of analyzing the pedaling technique, said method being implemented in real time and essentially at the sole.
  • This method makes it possible to establish at least one biomechanical parameter representative of the user's pedaling technique and to calculate an alphanumeric value representative of the evolution of the cyclist's pedaling technique, in a fast, simple and not requiring way. necessarily the intervention of a specialist in the field of sport.
  • the invention relates to a system for quantifying the pedaling of a user to obtain a value representative of the pedaling technique of said user, comprising a pair of soles, the soles, composing said pair of soles , each comprising an electronic box, each electronic box comprising: an inertial platform configured to generate a set of data on the pedaling technique of a user of the pair of soles, a data processing module configured to transform the set of data generated in at least one biomechanical parameter and determining the evolution of these biomechanical parameters,
  • a data storage module configured to store the at least one biomechanical parameter
  • a first communication means configured so that the electronic unit of at least one of the soles is capable of transmitting the at least one biomechanical parameter and / or the value representative of the evolution of the pedaling technique of the user at the external terminal, and a source of energy.
  • the invention relates to a system for analyzing and quantifying the pedaling of a user characterized in that it comprises two electronic housings, adapted to be integrated into a pair of soles, a first housing being suitable to be integrated in a first sole and a second housing being adapted to be integrated in a second sole, each housing comprising:
  • An inertial platform configured to generate a set of data on the pedaling technique of a user of the pair of soles
  • a data processing module configured, on the one hand, to process the set of data collected according to predefined algorithms and transform this set into at least one biomechanical parameter and, on the other hand, to determine the evolution of these parameters; biomechanical parameters over time,
  • a data storage module configured to store the information generated by the processing module
  • a first communication means configured in such a way that the electronic unit of at least one of the soles is capable of being able to transmit the information generated on the pedaling technique of the user to an external terminal and / or the other housing of the other sole, and
  • the advantage of this invention is to allow to have an electronic box bringing together all the electronic components necessary for autonomous operation, such as all the sensors, including calculation modules and a power source. It also increases the robustness of the system.
  • This housing can advantageously be unique, compact and miniaturized.
  • the calculation is here performed at the level of the sole via a data processing module that can correspond to the firmware ("firmware” in English terminology). Saxon) of an electronic card.
  • firmware in English terminology.
  • Saxon the firmware of an electronic card.
  • the data is transformed almost in real time at the electronic box, compared and can then be transferred for viewing on an external terminal.
  • Such a system reduces the solicitation of the memory of the storage module and can then increase the autonomy of the system.
  • Each electronic box further comprises a second communication means configured so that the electronic unit of a first sole is adapted to communicate with the electronic unit of a second sole, and that at least one of the modules data processing unit is configured to transform sets of data generated from the two soles composing the pair of soles into at least one biomechanical parameter relating to the pedaling technique.
  • the data processing modules communicating with each other are able on the one hand to calculate an asymmetry between the biomechanical parameters of the right leg relative to the biomechanical parameters of the left leg and, on the other hand, to calculate the variability of biomechanical parameters associated with one leg or both legs. Such information may be of great interest in the quantization of the user's pedaling technique.
  • Each data processing module is able to establish a profile of pedaling technique of the user from biomechanical parameters such as the angle of the foot, the efficiency of the push and pull phase, the position foot, cadence, rotation speed and power.
  • the transformation by the data processing module comprises the segmentation of the data into a plurality of pedaling phases. Such segmentation allows a better analysis of the pedaling of the user. In the prior devices, it is not performed within the sole as is the case in the present invention.
  • Each electronic box further comprises other sensors, including a magnetometer, a barometer, an altimeter, force and pressure sensors.
  • the calculation of the pedaling power is performed following the combination of inertial data and pressure / force.
  • each of the two housings is designed to be integrated in the pedal of a bicycle, or in the hold of the pedal of a bicycle.
  • the invention further relates to a method of quantifying the pedaling technique of a user implementing a quantification system comprising a pair of soles and an external terminal, the soles comprising said pair of soles, each comprising an electronic box each electronic box comprising an inertial platform, a data processing module, a data storage module, a first communication means, and an energy source, said method comprising the following steps:
  • Figure 1 illustrates a longitudinal sectional view from above of two soles each containing a cavity which will give way to a housing, each of the antennas housings being located on the outer edge with respect to each foot, according to a embodiment of the invention.
  • Figure 2 illustrates an open electronic box seen from above including an electronic card, a rechargeable battery, a connector and an antenna.
  • FIG. 3 illustrates an electronic box, in exploded sectional sectional view, notably comprising a rechargeable battery, an electronic card and an outer envelope in two parts.
  • the invention consists of an autonomous technology inserted into a compact and miniaturized body of a few grams, which is inserted into each of the two soles of the same pair.
  • the system 1 comprises a pair of soles 10 and an external terminal 20.
  • the soles 1 1, 12 used in the context of the system 1 according to the invention may for example correspond to outer soles or insoles, shoes. These soles can be removable or be permanently integrated in the sole of the shoes. Preferably, the soles are removable insoles.
  • the soles 1 1, 12 composing said pair of flanges 10 each comprise an electronic control unit 100, 101, 102.
  • the control unit 101, 102 is preferably positioned at a portion median of the sole.
  • An electronic box 100 according to the invention is detailed in Figure 2. Weighing only a few grams and being of reduced size, this electronic box 100 is housed in a space-saving manner in any insole and / or outer .
  • each electronic box is preferably light and weighs less than 10 grams, preferably less than 8 grams and more preferably less than 6 grams. In addition, it may have a thickness of less than 5 mm, preferably less than 4 mm and more preferably less than 3 mm. This allows him to integrate easily into a shoe / sole without altering the comfort of the user in his shoe. Finally, each electronic box has less than 5 cm 2 of area on its largest face, preferably less than 4 cm 2 and more preferably less than 3 cm 2 . Each electronic unit advantageously incorporates pillars or support pads 104 to enhance its strength, preferably a pad / cm2 to withstand the pressures and impact forces of foot movements. The insertion of such pads allows the housing to better withstand the weight of a person.
  • the electronic box 100 comprises at least two support pads 104, more preferably at least three support pads 104 and even more preferably at least four support pads 104 .
  • the electronic box 100 comprises an electronic card having at least one opening 105 allowing the passage of at least one support pad 104, preferably at least two openings 105.
  • each electronic box comprises a shock absorbing material such as polymeric foam (e.g. polyurethane, polyether).
  • the shock-absorbing material has a density of between 20 kg / m 3 and 50 kg / m 3.
  • Such a layer of protective foam also isolates the card vibration and moisture.
  • the electronic card is inserted into a housing compartment specially designed to receive it.
  • the electronic unit 100 is formed by the encapsulation of its components.
  • the encapsulation may take the form of a coating or a resin (e.g. silicone, epoxy, polyurethane).
  • a resin e.g. silicone, epoxy, polyurethane.
  • the encapsulation of all components offers good insulation and combines good electrical properties with excellent mechanical protection.
  • the electronic box according to the invention is provided with an inertial platform 1 10.1 1 1, 1 12 configured to generate a set of data on the pedaling technique of a user of the pair of soles.
  • the inertial platform 1 10 acquires signals representative of a movement parameter (acceleration and / or speed, for example angular velocity) of the foot along the X, Y axes. In addition, these data can then be processed to generate at least one acceleration signal.
  • the Inertial platform consists for example of at least one accelerometer and a gyroscope. Preferably, it comprises several accelerometers and gyroscopes.
  • the electronic box may also include one or more magnetometers so as to acquire three additional raw signals corresponding to the magnetic field values in three dimensions.
  • Each electronic box may furthermore comprise other sensors, including an inclinometer, a barometer and an altimeter to benefit from increased accuracy.
  • the electronic box according to the invention comprises a data processing module 120,121, 122 configured to transform all the data generated through predefined algorithms.
  • This processing module makes it possible to analyze in 3D the pedaling activity, and more particularly all that will be qualified as being the pedaling technique, from the data collected by the inertial platform and any additional sensors placed in the sole.
  • This processing module can be used to generate biomechanical parameters on the way the user is pedaling.
  • the data processing module 120 is able to transform the set of data into at least one biomechanical parameter of the pedaling, the said biomechanical parameter of the pedaling being preferably selected from: the angle of the foot, the efficiency of the phase push and pull, foot position, cadence, rotational speed or power.
  • the treatment module can compare the biomechanical parameters of the user to determine the evolution over time of his pedaling technique.
  • the transformation by the data processing module may advantageously include the segmentation of the pedaling into a plurality of phases.
  • the data processing module is able to segment the pedaling into two phases: push phase and draw phase.
  • the generated information will then be transmitted to the second housing by a transmission of signals that can be Bluetooth type.
  • the electronic unit comprises a storage module 130,131, 132 of data, configured to store at least a portion of the transformed data and / or data generated by the processing module.
  • the electronic unit according to the invention comprises a first communication means 140, 141, 142 configured so that the electronic unit 100 of at least one of the soles is able to transmit at least a portion of the transformed data. to an external terminal 20.
  • the external terminal 20 may for example be a remote system such as a tablet, a mobile phone ("smartphone" in English terminology ), a computer or a server.
  • each electronic unit further comprises a second communication means configured so that the electronic unit 101 of a first baseplate is able to communicate with the electronic unit 102 of a second base, and in that at least one data processing module 121, 122 is configured to calculate, preferably jointly, data sets generated from the two soles 1 1, 12, and more particularly of the inertial platform, comprising the pair of soles 10 .
  • the first and second communication means are able to receive and transmit the data on at least one communication network.
  • the communication is operated via a wireless protocol such as wifi, 3G, 4G, and / or Bluetooth.
  • the electronic box according to the invention comprises a power source 150,151, 152.
  • the energy source is preferably battery type, rechargeable or not.
  • the energy source is a rechargeable battery.
  • it can be associated with a charging system by movement or by external energy.
  • the external energy charging system may be a wired charging system or an induction charging system.
  • the electronic unit according to the invention may comprise a wire connection means 160, preferably protected by a removable tongue.
  • This wired connection means can be for example a USB port or firewire.
  • This wired connection means can be used as mentioned above to recharge the battery but also to exchange data and for example update the firmware of the electronic card carrying the various components of the electronic unit.
  • These different components of the electronic box are preferably arranged on an electronic card 170 (or printed circuit).
  • the various means and modules of the electronic unit 100 are shown separately in Figures 1 and 2, but the invention can provide various types of arrangement such as a single module combining all the functions described here. Similarly, these means can be divided into several electronic cards or collected on a single electronic card.
  • system 1 comprises an external terminal 20 capable of receiving data.
  • the external terminal 20 is generally a tablet, a mobile phone ("smartphone" in English terminology), a computer, a server or a self-contained device embedded. It may be able to transfer this data to a remote server 30. It is for example possible to access this remote server via a web interface.
  • a dedicated application is installed on this external terminal to process the information transmitted by the boxes and allow the user to interact with the invention.
  • the invention could integrate a single housing in one of the two flanges. Indeed, this single housing would communicate directly with the external terminal of the cyclist. Pedaling constituting a symmetrical movement of the lower limbs, it is possible to anticipate the biomechanical parameters of one of the two members by recovering the biotechnical parameters of the other limb.
  • the housings can be directly installed on the pedal wedges of the same bike or on any other device positioned at the level of the soles, for example under the soles.
  • the biomechanical data of the cyclist are directly collected from the action exerted by his feet on each of the two pedals of the bicycle.
  • the two electronic boxes can be parameterized so as to transmit all the data collected to a self-contained device carried by the cyclist, fixed on the frame of the bike or simply positioned at the soles .
  • Said autonomous device comprising: o a communication module configured to receive the generated sets of data transmitted by the two electronic boxes, and
  • O a data storage module configured to memorize the sets
  • the communication module being further configured to transmit the generated sets of received data to an analysis device;
  • an analysis device configured to process the data sets collected according to predefined algorithms and to generate information on the pedaling technique of a user of the pair of soles;
  • Such a system makes it possible to follow the pedaling of the cyclist reliably.
  • the presence of a pair of sole each having a housing protecting an inertial platform provides the ability to follow independently the movement of each of the feet.
  • the inertial platform will analyze, in at least three dimensions, the posture, movements and cadence of the feet of the user, and more generally anything that will be qualified as his pedaling.
  • the inertial platform will be able to note the different movements and postures of the feet, but also to note the weaknesses that appear in the pedaling technique of the user.

Abstract

The invention relates to a device for analyzing and quantifying the pedalling technique of a user, based on a pair of soles, each sole comprising a compact and miniaturized electronic housing which comprises an electronic card containing an inertial platform consisting in particular of an accelerometer and a gyroscope for collecting and processing biomechanical data. The two housings are able to communicate with each other and with an external terminal in order to provide the user with general information on his pedalling activity.

Description

SYSTEME POUR L’ANALYSE DE LA TECHNIQUE DE PEDALAGE D’UN CYCLISTE ET PROCEDES ASSOCIES  SYSTEM FOR ANALYZING THE TECHNIQUE OF PEDALING A CYCLIST AND ASSOCIATED METHODS
Domaine technique Technical area
[0001 ] L’invention concerne le domaine de la chaussure et plus généralement celui des articles chaussants. La présente invention concerne plus particulièrement un système pour l’analyse de la technique de pédalage d’un cycliste.  The invention relates to the field of footwear and more generally that of footwear. The present invention relates more particularly to a system for analyzing the pedaling technique of a cyclist.
[0002] Plus précisément, il s’agit d’un système de mesure de données biomécaniques constitué de deux boîtiers disposés chacun dans chacune des deux semelles de chaussures d’une même paire, destinés à recueillir et exploiter des informations sur la technique de pédalage d’un utilisateur.  More specifically, it is a biomechanical data measurement system consisting of two housings each disposed in each of the two shoe soles of the same pair, for collecting and using information on the pedaling technique of a user.
Art antérieur  Prior art
[0003] Les chaussures et plus spécifiquement les semelles, qu'elles soient intérieures ou extérieures, ont essentiellement pour rôle originel de protéger le pied du sol. Leur forme varie en fonction de la mode et de ses aléas pour laisser place à une multitude de produits dérivés et de fonctions.  The shoes and more specifically the soles, whether they are inside or outside, have essentially the original role of protecting the foot of the ground. Their shape varies according to fashion and its hazards to make room for a multitude of products and functions.
[0004] Les chaussures peuvent être à usage de détente, formel, sportif, médical, professionnel ou plus simplement récréatif. Ainsi, une chaussure se compose principalement, d'une part, d'une semelle partie inférieure qui protège la plante des pieds, plus ou moins relevée à l'arrière par le talon et, d'autre part, de la tige, partie supérieure qui enveloppe le pied. Elle peut être limitée à la cheville ou être montante. La semelle peut se décliner en deux parties. Une couche de semelle supérieure en contact direct avec le pied de l'utilisateur et une couche de semelle inférieure en contact direct avec le sol ou plus généralement l'environnement extérieur. Une chaussure peut aussi comporter une semelle interne amovible. Dans ce cas particulier, cette semelle est aussi composée au moins d'une couche de semelle supérieure et d'une couche de semelle inférieure.  [0004] The shoes can be used for relaxation, formal, sports, medical, professional or simply recreational. Thus, a shoe consists mainly of, on the one hand, a lower sole that protects the soles of the feet, more or less raised at the back by the heel and, on the other hand, the upper stem which wraps the foot. It can be limited to the ankle or rising. The sole can be divided into two parts. An upper sole layer in direct contact with the user's foot and a lower sole layer in direct contact with the ground or more generally the external environment. A shoe may also include a removable insole. In this particular case, this sole is also composed of at least one upper sole layer and one lower sole layer.
[0005] Les nouvelles technologies accompagnent des besoins nouveaux et le monde de la chaussure fait partie de ce mouvement. Le développement de l’électronique a conduit à l’apparition de semelles et chaussures dites connectées, qui présentent des fonctions très diversifiées. Très généralement, ces semelles ou chaussures connectées peuvent être autonomes et contenir une batterie rechargeable. Elles peuvent être reliées à un terminal extérieur par un système filaire ou par une connexion sans fil. [0006] Parmi les fonctions proposées par les semelles ou chaussures connectées existantes, nous pouvons citer la fonction de chauffage du pied à une ou plusieurs températures données, déterminées par le constructeur ; nous pouvons également citer celles, décrites dans le document US2017/0188950, équipées de capteurs de pression et d’un accéléromètre et qui permettent à un smartphone connecté via Bluetooth de délivrer des statistiques sur les activités physiques de leur porteur tel que le nombre de pas réalisés. [0005] New technologies are accompanying new needs and the world of footwear is part of this movement. The development of electronics has led to the appearance of so-called connected soles and shoes, which have very diversified functions. Generally, these soles or shoes connected can be autonomous and contain a rechargeable battery. They can be connected to an external terminal by a wired system or a wireless connection. Among the functions offered by existing soles or connected shoes, we can mention the foot heating function at one or more given temperatures, determined by the manufacturer; we can also mention those described in the document US2017 / 0188950, equipped with pressure sensors and an accelerometer and that allow a smartphone connected via Bluetooth to issue statistics on the physical activities of their wearer such as the number of steps made.
[0007] Concernant plus spécifiquement l’activité de pédalage, les inventions répertoriées portent toutes sur des dispositifs fonctionnant à partir du vélo, tel le WO 2010000369 qui permet de mesurer la puissance de sortie d’un cycliste : il s’agit ici d’un capteur de force noyé dans une cale d’une bicyclette, et boulonnée à la chaussure du cycliste. Cette invention, qui utilise un accéléromètre et des capteurs de pression, reste un dispositif attaché à la bicyclette et nécessite d’être déplacé en cas de changement de vélo. Par ailleurs, ce dispositif ne permet le recueil de données qu’a posteriori, après l’activité de pédalage.  [0007] With regard more specifically to the pedaling activity, the inventions listed all relate to devices operating from the bicycle, such as WO 2010000369 which makes it possible to measure the output power of a cyclist: here it is a question of a force sensor drowned in a hold of a bicycle, and bolted to the cyclist's shoe. This invention, which utilizes an accelerometer and pressure sensors, remains a device attached to the bicycle and needs to be moved in the event of a bicycle change. Furthermore, this device allows the collection of data after the event, after the pedaling activity.
[0008] Le WO2010014242 et le EP1637445 souffrent de la même critique, de sorte qu’en dépit de la variété des solutions technologiques proposées, aucun utilisateur n’a accès à des semelles lui permettant un suivi en temps réel de son activité de pédalage à partir de données recueillis directement de l’activité de ses pieds. Ainsi, il existe un besoin pour de nouveaux systèmes d’analyse de la technique de pédalage d’un cycliste.  WO2010014242 and EP1637445 suffer from the same criticism, so that despite the variety of technological solutions proposed, no user has access to soles allowing a real-time monitoring of his pedaling activity to from data collected directly from the activity of his feet. Thus, there is a need for new systems for analyzing the pedaling technique of a cyclist.
Problème technique Technical problem
[0009] L’invention a pour but de remédier aux inconvénients de l’art antérieur. En particulier, l’invention a pour but de proposer un système pour analyser la technique de pédalage d’un cycliste, ledit système étant fiable, robuste, et permettant de suivre l’activité du cycliste en temps réel et sur une période de temps plus longue grâce notamment à une autonomie améliorée.  The invention aims to overcome the disadvantages of the prior art. In particular, the invention aims to provide a system for analyzing the pedaling technique of a cyclist, said system being reliable, robust, and to monitor the activity of the cyclist in real time and over a period of time more long thanks to improved autonomy.
[0010] L’invention a en outre pour but de proposer un procédé d’analyse de la technique de pédalage, ledit procédé pouvant être mis en oeuvre en temps réel et essentiellement au niveau de la semelle. Ce procédé permet d’établir au moins un paramètre biomécanique représentatif de la technique de pédalage de l’utilisateur et de calculer une valeur alphanumérique représentative de l’évolution de la technique de pédalage du cycliste, de façon rapide, simple, et ne nécessitant pas nécessairement l’intervention d’un spécialiste dans le domaine du sport. Brève description de l’invention The invention further aims to provide a method of analyzing the pedaling technique, said method being implemented in real time and essentially at the sole. This method makes it possible to establish at least one biomechanical parameter representative of the user's pedaling technique and to calculate an alphanumeric value representative of the evolution of the cyclist's pedaling technique, in a fast, simple and not requiring way. necessarily the intervention of a specialist in the field of sport. Brief description of the invention
[001 1 ] A cet effet, l’invention porte sur un système de quantification du pédalage d’un utilisateur pour obtenir une valeur représentative de la technique de pédalage dudit utilisateur, comportant une paire de semelles, les semelles, composant ladite paire de semelles, comportant chacune un boîtier électronique, chaque boîtier électronique comprenant : une plateforme inertielle configurée pour générer un ensemble de données sur la technique de pédalage d’un utilisateur de la paire de semelles, un module de traitement de données configuré pour transformer l’ensemble de données généré en au moins un paramètre biomécanique et déterminer l’évolution de ces paramètres biomécaniques,  [001 1] For this purpose, the invention relates to a system for quantifying the pedaling of a user to obtain a value representative of the pedaling technique of said user, comprising a pair of soles, the soles, composing said pair of soles , each comprising an electronic box, each electronic box comprising: an inertial platform configured to generate a set of data on the pedaling technique of a user of the pair of soles, a data processing module configured to transform the set of data generated in at least one biomechanical parameter and determining the evolution of these biomechanical parameters,
un module de stockage de données configuré pour mémoriser l’au moins un paramètre biomécanique,  a data storage module configured to store the at least one biomechanical parameter,
un premier moyen de communication configuré de façon à ce que le boîtier électronique d’au moins une des semelles soit apte à transmettre l’au moins un paramètre biomécanique et/ou la valeur représentative de l’évolution de la technique de pédalage de l’utilisateur au terminal externe, et une source d’energie.  a first communication means configured so that the electronic unit of at least one of the soles is capable of transmitting the at least one biomechanical parameter and / or the value representative of the evolution of the pedaling technique of the user at the external terminal, and a source of energy.
[0012] Alternativement, l’invention porte sur un système d’analyse et de quantification du pédalage d’un utilisateur caractérisé en ce qu’il comporte deux boîtiers électroniques, aptes à être intégrés dans une paire de semelles, un premier boîtier étant apte à être intégré dans une première semelle et un second boîtier étant apte à être intégré dans une seconde semelle, chaque boîtier comprenant :  Alternatively, the invention relates to a system for analyzing and quantifying the pedaling of a user characterized in that it comprises two electronic housings, adapted to be integrated into a pair of soles, a first housing being suitable to be integrated in a first sole and a second housing being adapted to be integrated in a second sole, each housing comprising:
• une plateforme inertielle configurée pour générer un ensemble de données sur la technique de pédalage d’un utilisateur de la paire de semelles,  An inertial platform configured to generate a set of data on the pedaling technique of a user of the pair of soles,
• un module de traitement de données configuré pour d’une part, traiter l’ensemble de données recueillies en fonction d’algorithmes prédéfinis et transformer cet ensemble en au moins un paramètre biomécanique et, d’autre part, déterminer l’évolution de ces paramètres biomécaniques dans le temps,  A data processing module configured, on the one hand, to process the set of data collected according to predefined algorithms and transform this set into at least one biomechanical parameter and, on the other hand, to determine the evolution of these parameters; biomechanical parameters over time,
• un module de stockage de données configuré pour mémoriser l’information générée par le module de traitement,  A data storage module configured to store the information generated by the processing module,
• un premier moyen de communication configuré de façon à ce que le boîtier électronique d’au moins une des semelles soit apte à soit apte à transmettre l’information générée sur la technique de pédalage de l’utilisateur à un terminal externe et/ou à l’autre boîtier de l’autre semelle, et A first communication means configured in such a way that the electronic unit of at least one of the soles is capable of being able to transmit the information generated on the pedaling technique of the user to an external terminal and / or the other housing of the other sole, and
• une source d’énergie.  • a source of energy.
[0013] L’avantage de cette invention est de permettre d’avoir un boîtier électronique rassemblant l’ensemble des composants électroniques nécessaires à un fonctionnement autonome, tels que tous les capteurs, y compris des modules de calcul et une source d'énergie. Cela permet également d’augmenter la robustesse du système. Ce boîtier peut avantageusement être unique, compact et miniaturisé.  The advantage of this invention is to allow to have an electronic box bringing together all the electronic components necessary for autonomous operation, such as all the sensors, including calculation modules and a power source. It also increases the robustness of the system. This housing can advantageously be unique, compact and miniaturized.
[0014] Par ailleurs, contrairement aux systèmes proposés dans l’art antérieur, le calcul est ici réalisé au niveau de la semelle par l’intermédiaire d’un module de traitement de données pouvant correspondre au micrologiciel (« firmware » en terminologie anglo-saxonne) d’une carte électronique. De cette façon, les données sont transformées quasiment en temps réel au niveau du boîtier électronique, comparées puis peuvent ensuite être transférées pour leur visualisation sur un terminal externe. Un tel système permet de réduire la sollicitation de la mémoire du module de stockage et peut alors permettre d’augmenter l’autonomie du système.  Moreover, unlike the systems proposed in the prior art, the calculation is here performed at the level of the sole via a data processing module that can correspond to the firmware ("firmware" in English terminology). Saxon) of an electronic card. In this way, the data is transformed almost in real time at the electronic box, compared and can then be transferred for viewing on an external terminal. Such a system reduces the solicitation of the memory of the storage module and can then increase the autonomy of the system.
[0015] Chaque boîtier électronique comporte en outre un second moyen de communication configuré de façon à ce que le boîtier électronique d’une première semelle soit apte à communiquer avec le boîtier électronique d’une seconde semelle, et qu’au moins un des modules de traitement de données soit configuré pour transformer des ensembles de données générés à partir des deux semelles composant la paire de semelles en au moins un paramètre biomécanique relatif à la technique de pédalage. Une telle configuration permet de produire en temps réel des paramètres biomécaniques plus pertinents dans le cadre de l’étude de la technique de pédalage de l’utilisateur.  Each electronic box further comprises a second communication means configured so that the electronic unit of a first sole is adapted to communicate with the electronic unit of a second sole, and that at least one of the modules data processing unit is configured to transform sets of data generated from the two soles composing the pair of soles into at least one biomechanical parameter relating to the pedaling technique. Such a configuration makes it possible to produce in real time more relevant biomechanical parameters in the context of the study of the pedaling technique of the user.
[0016] Les modules de traitement de données communiquant entre eux, sont aptes d’une part à calculer une asymétrie entre les paramètres biomécaniques de la jambe droite par rapport aux paramètres biomécaniques de la jambe gauche et, d’autre part, à calculer la variabilité des paramètres biomécaniques associés à une jambe ou aux deux jambes. De telles informations peuvent être d’un intérêt très fort dans le cadre de la quantification de la technique de pédalage de l’utilisateur  The data processing modules communicating with each other, are able on the one hand to calculate an asymmetry between the biomechanical parameters of the right leg relative to the biomechanical parameters of the left leg and, on the other hand, to calculate the variability of biomechanical parameters associated with one leg or both legs. Such information may be of great interest in the quantization of the user's pedaling technique.
[0017] Chaque module de traitement de données est apte à établir un profil de technique de pédalage de l’utilisateur à partir de paramètres biomécaniques tels que l’angle du pied, l’efficacité de la phase de poussée et de tirage, la position du pied, la cadence, la vitesse de rotation et la puissance. [0018] La transformation par le module de traitement de données comprend la segmentation des données en une pluralité de phases de pédalage. Une telle segmentation permet une meilleure analyse du pédalage de l’utilisateur. Dans les dispositifs antérieurs, elle n’est pas réalisée au sein de la semelle comme cela est le cas dans la présente invention. Each data processing module is able to establish a profile of pedaling technique of the user from biomechanical parameters such as the angle of the foot, the efficiency of the push and pull phase, the position foot, cadence, rotation speed and power. The transformation by the data processing module comprises the segmentation of the data into a plurality of pedaling phases. Such segmentation allows a better analysis of the pedaling of the user. In the prior devices, it is not performed within the sole as is the case in the present invention.
[0019] Chaque boîtier électronique comporte en outre d’autres capteurs, notamment un magnétomètre, un baromètre, un altimètre, des capteurs de force et de pression.  Each electronic box further comprises other sensors, including a magnetometer, a barometer, an altimeter, force and pressure sensors.
[0020] Le calcul de la puissance de pédalage est effectué suite à la combinaison des données inertielles et de pression/force.  The calculation of the pedaling power is performed following the combination of inertial data and pressure / force.
[0021 ] Par ailleurs, chacun des deux boîtiers est conçu de manière à être intégrable dans la pédale d'un vélo, ou dans la cale de la pédale d'un vélo.  Moreover, each of the two housings is designed to be integrated in the pedal of a bicycle, or in the hold of the pedal of a bicycle.
[0022] L’invention porte en outre sur un procédé de quantification de la technique de pédalage d’un utilisateur mettant en œuvre un système de quantification comportant une paire de semelles et un terminal externe, les semelles composant ladite paire de semelles, comportant chacune un boîtier électronique chaque boîtier électronique comprenant une plateforme inertielle, un module de traitement de données, un module de stockage de données, un premier moyen de communication, et une source d’énergie, ledit procédé comportant les étapes suivantes :  The invention further relates to a method of quantifying the pedaling technique of a user implementing a quantification system comprising a pair of soles and an external terminal, the soles comprising said pair of soles, each comprising an electronic box each electronic box comprising an inertial platform, a data processing module, a data storage module, a first communication means, and an energy source, said method comprising the following steps:
• Génération, par la plateforme inertielle, d’un ensemble de données sur la technique de pédalage de l’utilisateur de la paire de semelles,  • Generation, by the inertial platform, of a dataset on the pedaling technique of the user of the pair of soles,
• Transformation, par le module de traitement de données, de l’ensemble de données généré en au moins un paramètre biomécanique, et comparaison de ces paramètres,  • Transformation, by the data processing module, of the set of data generated into at least one biomechanical parameter, and comparison of these parameters,
• Mémorisation, par le module de stockage de données, d’au moins un paramètre biomécanique,  Storing, by the data storage module, at least one biomechanical parameter,
• Transmission, par un premier moyen de communication d’au moins une des semelles, de l’au moins un paramètre biomécanique et/ou de la valeur représentative de l’évolution du pédalage de l’individu au terminal externe.  • Transmission, by a first means of communication of at least one of the soles, the at least one biomechanical parameter and / or the value representative of the evolution of the pedaling of the individual to the external terminal.
Brève description des dessins Brief description of the drawings
[0023] La figure 1 illustre une vue en coupe longitudinale du dessus de deux semelles chacune contenant une cavité qui va laisser place à un boîtier, chacune des antennes des boîtiers étant située sur l'arête extérieur vis à vis de chaque pied, selon un mode de réalisation de l'invention. [0024] La figure 2 illustre un boîtier électronique ouvert vu du dessus comprenant notamment une carte électronique, une batterie rechargeable, un connecteur et une antenne. [0023] Figure 1 illustrates a longitudinal sectional view from above of two soles each containing a cavity which will give way to a housing, each of the antennas housings being located on the outer edge with respect to each foot, according to a embodiment of the invention. [0024] Figure 2 illustrates an open electronic box seen from above including an electronic card, a rechargeable battery, a connector and an antenna.
[0025] La figure 3 illustre un boîtier électronique, en vue éclatée en coupe de profil, comprenant notamment une batterie rechargeable, une carte électronique ainsi qu’une enveloppe extérieure en deux parties.  FIG. 3 illustrates an electronic box, in exploded sectional sectional view, notably comprising a rechargeable battery, an electronic card and an outer envelope in two parts.
Description de l’invention Description of the invention
[0026] Pour poursuivre son objectif, l’invention consiste en une technologie autonome insérée dans un boîtier compact et miniaturisé de quelques grammes, qui est inséré dans chacune des deux semelles d’une même paire.  To pursue its objective, the invention consists of an autonomous technology inserted into a compact and miniaturized body of a few grams, which is inserted into each of the two soles of the same pair.
[0027] Le système 1 selon l’invention comporte une paire 10 de semelles et un terminal externe 20.  The system 1 according to the invention comprises a pair of soles 10 and an external terminal 20.
[0028] Les semelles 1 1 , 12 utilisables dans le cadre du système 1 selon l’invention peuvent par exemple correspondre à des semelles extérieures ou à des semelles intérieures, de chaussures. Ces semelles peuvent être amovibles ou être intégrées de manière permanente au semelage des chaussures. De façon préférée, les semelles sont des semelles intérieures amovibles.  The soles 1 1, 12 used in the context of the system 1 according to the invention may for example correspond to outer soles or insoles, shoes. These soles can be removable or be permanently integrated in the sole of the shoes. Preferably, the soles are removable insoles.
[0029] Classiquement, les semelles 1 1 , 12 composant ladite paire 10 de semelles, comportent chacune un boîtier électronique 100,101 , 102. Comme présenté sur la figure 1 , le boîtier électronique 101 ,102 est de préférence positionné au niveau d’une portion médiane de la semelle.  Conventionally, the soles 1 1, 12 composing said pair of flanges 10 each comprise an electronic control unit 100, 101, 102. As shown in FIG. 1, the control unit 101, 102 is preferably positioned at a portion median of the sole.
[0030] Un boîtier électronique 100 selon l’invention est détaillé dans la figure 2. Ne pesant que quelques grammes et étant de dimension réduite, ce boîtier électronique 100 se loge de façon peu encombrante dans n’importe quelle semelle intérieure et/ou extérieure.  An electronic box 100 according to the invention is detailed in Figure 2. Weighing only a few grams and being of reduced size, this electronic box 100 is housed in a space-saving manner in any insole and / or outer .
[0031 ] Ainsi, chaque boîtier électronique est de préférence léger et pèse moins de 10 grammes, de préférence moins de 8 grammes et de façon plus préférée moins de 6 grammes. En outre, il peut présenter une épaisseur inférieure à 5 mm, de préférence inférieure à 4 mm et de façon plus préférée inférieure à 3 mm. Cela lui permet de s’intégrer facilement dans une chaussure/semelle sans altérer le confort de l’utilisateur dans sa chaussure. Enfin, chaque boîtier électronique présente moins de 5 cm2 de surface sur sa face la plus grande, de préférence moins de 4 cm2 et de façon plus préférée moins de 3 cm2. [0032] Chaque boîtier électronique intègre avantageusement des piliers ou plots de soutien 104 afin de renforcer sa solidité, de préférence un plot/cm2 pour résister aux pressions et forces d’impact des mouvements du pied. L’insertion de tels plots permet au boîtier de mieux résister au poids d'une personne. Thus, each electronic box is preferably light and weighs less than 10 grams, preferably less than 8 grams and more preferably less than 6 grams. In addition, it may have a thickness of less than 5 mm, preferably less than 4 mm and more preferably less than 3 mm. This allows him to integrate easily into a shoe / sole without altering the comfort of the user in his shoe. Finally, each electronic box has less than 5 cm 2 of area on its largest face, preferably less than 4 cm 2 and more preferably less than 3 cm 2 . Each electronic unit advantageously incorporates pillars or support pads 104 to enhance its strength, preferably a pad / cm2 to withstand the pressures and impact forces of foot movements. The insertion of such pads allows the housing to better withstand the weight of a person.
[0033] De préférence de forme arrondie pour augmenter sa résistance mécanique, il doit être assemblé de telle sorte à maintenir une étanchéité parfaite et rendre l’intérieur contenant la carte électronique et la source d’énergie protégé de l’humidité et des poussières.  Preferably of rounded shape to increase its mechanical strength, it must be assembled in such a way as to maintain a perfect seal and make the inside containing the electronic card and the source of energy protected from moisture and dust.
[0034] Ainsi, de façon préférée, le boîtier électronique 100 selon l’invention comporte au moins deux plots de soutien 104, de façon plus préférée au moins trois plots de soutien 104 et de façon encore plus préférée au moins quatre plots de soutien 104.  Thus, preferably, the electronic box 100 according to the invention comprises at least two support pads 104, more preferably at least three support pads 104 and even more preferably at least four support pads 104 .
[0035] Avantageusement, le boîtier électronique 100 comporte une carte électronique présentant au moins une ouverture 105 permettant le passage d’au moins un plot de soutien 104, de préférence au moins deux ouvertures 105.  Advantageously, the electronic box 100 comprises an electronic card having at least one opening 105 allowing the passage of at least one support pad 104, preferably at least two openings 105.
[0036] En outre, de façon à augmenter encore la robustesse du système, chaque boîtier électronique comporte un matériau absorbeur de chocs tel que de la mousse polymère (e.g. polyuréthane, polyéther). Selon un mode de réalisation, le matériau absorbeur de chocs présente une densité comprise entre 20 kg/m3 et 50 kg/m3. Une telle couche de mousse protectrice permet également d’isoler la carte des vibrations et de l’humidité.  In addition, so as to further increase the robustness of the system, each electronic box comprises a shock absorbing material such as polymeric foam (e.g. polyurethane, polyether). According to one embodiment, the shock-absorbing material has a density of between 20 kg / m 3 and 50 kg / m 3. Such a layer of protective foam also isolates the card vibration and moisture.
[0037] Selon un mode de réalisation de l’invention, la carte électronique est insérée dans un compartiment du boîtier spécialement conçu pour la recevoir.  According to one embodiment of the invention, the electronic card is inserted into a housing compartment specially designed to receive it.
[0038] Selon un autre mode de réalisation, le boîtier électronique 100 est formé par l’encapsulation de ses composants. Par exemple, l’encapsulation peut prendre la forme un revêtement enrobant ou d’une résine (e.g. silicone, époxy, polyuréthane). L’encapsulation de l’intégralité des composants (e.g. plateforme inertielle, module de traitement...) offre une bonne isolation et combine ainsi de bonnes propriétés électriques à une excellente protection mécanique.  According to another embodiment, the electronic unit 100 is formed by the encapsulation of its components. For example, the encapsulation may take the form of a coating or a resin (e.g. silicone, epoxy, polyurethane). The encapsulation of all components (e.g. inertial platform, processing module ...) offers good insulation and combines good electrical properties with excellent mechanical protection.
[0039] Le boîtier électronique selon l’invention est doté une plateforme inertielle 1 10,1 1 1 ,1 12 configurée pour générer un ensemble de données sur la technique de pédalage d’un utilisateur de la paire 10 de semelles.  The electronic box according to the invention is provided with an inertial platform 1 10.1 1 1, 1 12 configured to generate a set of data on the pedaling technique of a user of the pair of soles.
[0040] Au cours de la session de pédalage d’un utilisateur, la plateforme inertielle 1 10 acquière des signaux représentatifs d'un paramètre de mouvement (accélération et/ou vitesse, par exemple vitesse angulaire) du pied selon les axes X, Y, Z. En outre, ces données peuvent ensuite être traitées pour générer au moins un signal d'accélération. La plateforme inertielle est par exemple constituée d'au moins un accéléromètre et un gyroscope. De façon préférée, elle comporte plusieurs accéléromètres et gyroscopes. During the pedaling session of a user, the inertial platform 1 10 acquires signals representative of a movement parameter (acceleration and / or speed, for example angular velocity) of the foot along the X, Y axes. In addition, these data can then be processed to generate at least one acceleration signal. The Inertial platform consists for example of at least one accelerometer and a gyroscope. Preferably, it comprises several accelerometers and gyroscopes.
[0041 ] Le boîtier électronique peut également comporter un ou plusieurs magnétomètres de façon à acquérir trois signaux bruts supplémentaires correspondant aux valeurs de champs magnétiques sur trois dimensions.  The electronic box may also include one or more magnetometers so as to acquire three additional raw signals corresponding to the magnetic field values in three dimensions.
[0042] Chaque boîtier électronique peut comporter par ailleurs d’autres capteurs, notamment un inclinomètre, un baromètre et un altimètre pour bénéficier d'une précision accrue.  Each electronic box may furthermore comprise other sensors, including an inclinometer, a barometer and an altimeter to benefit from increased accuracy.
[0043] En outre, le boîtier électronique selon l’invention comporte un module de traitement de données 120,121 ,122 configurée pour transformer l’ensemble des données générées grâce à des algorithmes prédéfinis.  In addition, the electronic box according to the invention comprises a data processing module 120,121, 122 configured to transform all the data generated through predefined algorithms.
[0044] Ce module de traitement permet d’analyser en 3D l’activité de pédalage, et plus particulièrement tout ce qui sera qualifié comme étant la technique de pédalage, à partir des données recueillies par la plateforme inertielle et les éventuels capteurs complémentaires placés dans la semelle.  This processing module makes it possible to analyze in 3D the pedaling activity, and more particularly all that will be qualified as being the pedaling technique, from the data collected by the inertial platform and any additional sensors placed in the sole.
[0045] Ce module de traitement peut être utilisé pour générer des paramètres biomécaniques sur la manière dont l’utilisateur pédale. Avantageusement, le module de traitement de données 120 est apte à transformer l’ensemble de données en au moins un paramètre biomécanique du pédalage, ledit paramètre biomécanique du pédalage étant de préférence sélectionné parmi : l’angle du pied, l’efficacité de la phase de poussée et de tirage, la position du pied, la cadence, la vitesse de rotation ou la puissance.  This processing module can be used to generate biomechanical parameters on the way the user is pedaling. Advantageously, the data processing module 120 is able to transform the set of data into at least one biomechanical parameter of the pedaling, the said biomechanical parameter of the pedaling being preferably selected from: the angle of the foot, the efficiency of the phase push and pull, foot position, cadence, rotational speed or power.
[0046] Avantageusement, le module de traitement peut comparer les paramètres biomécaniques de l’utilisateur pour déterminer l’évolution dans le temps de sa technique de pédalage.  Advantageously, the treatment module can compare the biomechanical parameters of the user to determine the evolution over time of his pedaling technique.
[0047] En outre, la transformation par le module de traitement de données peut avantageusement comprendre la segmentation du pédalage en une pluralité de phases. De préférence, le module de traitement de données est apte à segmenter le pédalage en deux phases : phase de poussée et phase de tirage.  In addition, the transformation by the data processing module may advantageously include the segmentation of the pedaling into a plurality of phases. Preferably, the data processing module is able to segment the pedaling into two phases: push phase and draw phase.
[0048] Les informations générées vont ensuite être transmises au second boîtier par une émission de signaux qui peuvent être de type Bluetooth.  The generated information will then be transmitted to the second housing by a transmission of signals that can be Bluetooth type.
[0049] Lorsqu’un boîtier électronique n’est pas en mesure de communiquer en temps réel avec l’autre boîtier et/ou avec le terminal, il stocke les informations récoltées et les transmettra en différé lorsque l’échange sera de nouveau possible. Cette transmission en différé des données recueillies est rendue possible grâce à la capacité de stockage dont est doté chacun des boîtiers électroniques. [0050] Ainsi, le boîtier électronique selon l’invention comporte un module de stockage 130,131 ,132 de données, configuré pour mémoriser au moins une partie des données transformées et/ou des données générées par le module de traitement. When an electronic box is not able to communicate in real time with the other box and / or with the terminal, it stores the collected information and transmit it offline when the exchange will be possible again. This remote transmission of the data collected is made possible by the storage capacity of each of the electronic boxes. Thus, the electronic unit according to the invention comprises a storage module 130,131, 132 of data, configured to store at least a portion of the transformed data and / or data generated by the processing module.
[0051 ] En outre, le boîtier électronique selon l’invention comporte un premier moyen de communication 140,141 ,142 configuré de façon à ce que le boîtier électronique 100 d’au moins une des semelles soit apte à transmettre au moins une partie des données transformées à un terminal externe 20. Ces données peuvent être transmises en temps réel ou en différé à un terminal externe 20. Le terminal externe 20 peut par exemple être un système distant tel qu’une tablette, un téléphone mobile (« smartphone » en terminologie anglosaxonne), un ordinateur ou un serveur.  In addition, the electronic unit according to the invention comprises a first communication means 140, 141, 142 configured so that the electronic unit 100 of at least one of the soles is able to transmit at least a portion of the transformed data. to an external terminal 20. These data can be transmitted in real time or deferred to an external terminal 20. The external terminal 20 may for example be a remote system such as a tablet, a mobile phone ("smartphone" in English terminology ), a computer or a server.
[0052] Avantageusement, chaque boîtier électronique comporte en outre un second moyen de communication configuré de façon à ce que le boîtier électronique 101 d’une première semelle soit apte à communiquer avec le boîtier électronique 102 d’une seconde semelle, et en ce qu’au moins un module de traitement de données 121 ,122 soit configuré pour calculer, de préférence conjointement, des ensembles de données générés à partir des deux semelles 1 1 ,12, et plus particulièrement de la plateforme inertielle, composant la paire 10 de semelles.  Advantageously, each electronic unit further comprises a second communication means configured so that the electronic unit 101 of a first baseplate is able to communicate with the electronic unit 102 of a second base, and in that at least one data processing module 121, 122 is configured to calculate, preferably jointly, data sets generated from the two soles 1 1, 12, and more particularly of the inertial platform, comprising the pair of soles 10 .
[0053] Les premiers et deuxièmes moyens de communication sont aptes à recevoir et à transmettre les données sur au moins un réseau de communication. De préférence la communication est opérée par l’intermédiaire d’un protocole sans fils tel que wifi, 3G, 4G, et/ou Bluetooth.  The first and second communication means are able to receive and transmit the data on at least one communication network. Preferably the communication is operated via a wireless protocol such as wifi, 3G, 4G, and / or Bluetooth.
[0054] En outre, le boîtier électronique selon l’invention comporte une source d’énergie 150,151 ,152. La source d’énergie est de préférence de type batterie, rechargeable ou non. De préférence la source d’énergie est une batterie rechargeable. En outre, elle peut être associée à un système de recharge par le mouvement ou par une énergie extérieure. Le système de recharge par une énergie extérieure peut notamment être un système de recharge par connexion filaire ou bien un système de recharge par induction. In addition, the electronic box according to the invention comprises a power source 150,151, 152. The energy source is preferably battery type, rechargeable or not. Preferably the energy source is a rechargeable battery. In addition, it can be associated with a charging system by movement or by external energy. The external energy charging system may be a wired charging system or an induction charging system.
[0055] En outre, le boîtier électronique selon l’invention peut comporter un moyen de connexion filaire 160, de préférence protégé par une languette amovible. Ce moyen de connexion filaire peut être par exemple un port USB ou firewire. Ce moyen de connexion filaire peut être utilisé comme évoqué ci-dessus pour recharger la batterie mais également pour échanger des données et par exemple mettre à jour le micrologiciel de la carte électronique portant les différents composants du boîtier électronique. [0056] Ces différents composants du boîtier électronique sont de préférence agencés sur une carte électronique 170 (ou circuit imprimé). En outre, les différents moyens et modules du boîtier électronique 100 sont représentés de façon distincte sur les figures 1 et 2 mais l’invention peut prévoir divers types d’agencement comme par exemple un seul module cumulant l’ensemble des fonctions décrites ici. De même, ces moyens peuvent être divisés en plusieurs cartes électroniques ou bien rassemblés sur une seule carte électronique. In addition, the electronic unit according to the invention may comprise a wire connection means 160, preferably protected by a removable tongue. This wired connection means can be for example a USB port or firewire. This wired connection means can be used as mentioned above to recharge the battery but also to exchange data and for example update the firmware of the electronic card carrying the various components of the electronic unit. These different components of the electronic box are preferably arranged on an electronic card 170 (or printed circuit). In addition, the various means and modules of the electronic unit 100 are shown separately in Figures 1 and 2, but the invention can provide various types of arrangement such as a single module combining all the functions described here. Similarly, these means can be divided into several electronic cards or collected on a single electronic card.
[0057] En outre, le système 1 comporte un terminal externe 20 apte à recevoir des données.  In addition, the system 1 comprises an external terminal 20 capable of receiving data.
Le terminal externe 20 est généralement une tablette, un téléphone mobile (« smartphone » en terminologie anglosaxonne), un ordinateur, un serveur ou encore un dispositif autonome embarqué. Il peut être apte à transférer ces données à un serveur distant 30. Il est alors par exemple possible d’accéder à ce serveur distant via une interface web.  The external terminal 20 is generally a tablet, a mobile phone ("smartphone" in English terminology), a computer, a server or a self-contained device embedded. It may be able to transfer this data to a remote server 30. It is for example possible to access this remote server via a web interface.
[0058] Avantageusement, une application dédiée est installée sur ce terminal externe afin de traiter les informations transmises par les boîtiers et permettre à l’utilisateur d’interagir avec l’invention. Advantageously, a dedicated application is installed on this external terminal to process the information transmitted by the boxes and allow the user to interact with the invention.
[0059] Selon un mode de réalisation, l’invention pourrait intégrer un seul boîtier dans l’une des deux semelles. En effet, cet unique boîtier communiquerait directement avec le terminal externe du cycliste. Le pédalage constituant un mouvement symétrique des membres inférieurs, il est possible d’anticiper les paramètres biomécaniques d’un des deux membres en récupérant les paramètres biotechniques de l’autre membre.  According to one embodiment, the invention could integrate a single housing in one of the two flanges. Indeed, this single housing would communicate directly with the external terminal of the cyclist. Pedaling constituting a symmetrical movement of the lower limbs, it is possible to anticipate the biomechanical parameters of one of the two members by recovering the biotechnical parameters of the other limb.
[0060] Cette invention pouvant être rattachée au domaine des accessoires du cycliste, il est à noter que, selon un autre mode de réalisation, les boîtiers peuvent être directement installés sur les cales des pédales d’un même vélo ou sur tout autre dispositif positionné au niveau des semelles, par exemple sous les semelles. Dans cette hypothèse, les données biomécaniques du cycliste sont directement collectées à partir de l’action exercée par ses pieds sur chacune des deux pédales du vélo.  This invention may be related to the field of accessories of the cyclist, it is noted that, according to another embodiment, the housings can be directly installed on the pedal wedges of the same bike or on any other device positioned at the level of the soles, for example under the soles. In this case, the biomechanical data of the cyclist are directly collected from the action exerted by his feet on each of the two pedals of the bicycle.
[0061 ] Selon un autre mode de réalisation, les deux boîtiers électroniques peuvent être paramétrés de manière à transmettre l’ensemble des données collectées à un dispositif autonome embarqué emporté par le cycliste, fixé sur le cadre du vélo ou simplement positionné au niveau des semelles. Ledit dispositif autonome embarqué comprenant : o un module de communication configuré pour recevoir les ensembles générés de données transmis par les deux boîtiers électroniques, et  According to another embodiment, the two electronic boxes can be parameterized so as to transmit all the data collected to a self-contained device carried by the cyclist, fixed on the frame of the bike or simply positioned at the soles . Said autonomous device comprising: o a communication module configured to receive the generated sets of data transmitted by the two electronic boxes, and
O un module de stockage de données configuré pour mémoriser les ensembles  O a data storage module configured to memorize the sets
générés de données réceptionnés, le module de communication étant en outre configuré pour transmettre les ensembles générés de données réceptionnés à un dispositif d’analyse ; et generated data received, the communication module being further configured to transmit the generated sets of received data to an analysis device; and
o un dispositif d’analyse configuré pour traiter les ensembles de données recueillies en fonction d’algorithmes prédéfinis et générer une information sur la technique de pédalage d’un utilisateur de la paire de semelles ;  an analysis device configured to process the data sets collected according to predefined algorithms and to generate information on the pedaling technique of a user of the pair of soles;
o un ou plusieurs capteurs de force, anémomètre, jauges de contrainte ou tous autres capteurs qui, combinés aux boîtiers, permettraient d’obtenir plus d’information sur la technique de pédalage de l’utilisateur.  o one or more force sensors, anemometer, strain gauges or any other sensors that, combined with the housings, would provide more information on the user's pedaling technique.
[0062] Un tel système permet de suivre le pédalage du cycliste de façon fiable. En effet, la présence d’une paire de semelle comportant chacune un boîtier protégeant une plateforme inertielle donne la possibilité de suivre de façon indépendante le mouvement de chacun des pieds. La plateforme inertielle va analyser, en au moins trois dimensions, la posture, les mouvements et la cadence des pieds de l'utilisateur, et plus généralement tout ce qui sera qualifié comme étant son pédalage. La plateforme inertielle va pouvoir constater les différents mouvements et postures des pieds, mais également relever les faiblesses qui apparaissent au niveau de la technique de pédalage de l’utilisateur.  Such a system makes it possible to follow the pedaling of the cyclist reliably. Indeed, the presence of a pair of sole each having a housing protecting an inertial platform provides the ability to follow independently the movement of each of the feet. The inertial platform will analyze, in at least three dimensions, the posture, movements and cadence of the feet of the user, and more generally anything that will be qualified as his pedaling. The inertial platform will be able to note the different movements and postures of the feet, but also to note the weaknesses that appear in the pedaling technique of the user.

Claims

Revendications claims
[Revendications 1] Système d’analyse et de quantification du pédalage d’un utilisateur caractérisé en ce qu’il comporte deux boîtiers électroniques (100, 101 , 102), aptes à être intégrés dans une paire (10) de semelles, un premier boîtier étant apte à être intégré dans une première semelle et un second boîtier étant apte à être intégré dans une seconde semelle, chaque boîtier comprenant :  [Claims 1] A system for analyzing and quantifying the pedaling of a user, characterized in that it comprises two electronic boxes (100, 101, 102) that can be integrated in a pair (10) of soles, a first housing being adapted to be integrated in a first sole and a second housing being adapted to be integrated in a second sole, each housing comprising:
une plateforme inertielle configurée pour générer un ensemble de données sur la technique de pédalage d’un utilisateur de la paire de semelles, un module de traitement de données configuré pour d’une part, traiter l’ensemble de données recueillies en fonction d’algorithmes prédéfinis et transformer cet ensemble en au moins un paramètre biomécanique et, d’autre part, déterminer l’évolution de ces paramètres biomécaniques dans le temps,  an inertial platform configured to generate a set of data on the pedaling technique of a user of the pair of soles, a data processing module configured for on the one hand, processing the set of data collected according to algorithms predefined and transform this set into at least one biomechanical parameter and, on the other hand, determine the evolution of these biomechanical parameters over time,
un module de stockage de données configuré pour mémoriser l’information générée par le module de traitement,  a data storage module configured to store the information generated by the processing module,
un premier moyen de communication configuré de façon à ce que le boîtier électronique d’au moins une des semelles soit apte à soit apte à transmettre l’information générée sur la technique de pédalage de l’utilisateur à un terminal externe (20) et/ou à l’autre boîtier de l’autre semelle, et  a first communication means configured so that the electronic unit of at least one of the soles is adapted to be able to transmit the information generated on the pedaling technique of the user to an external terminal (20) and / or the other case of the other sole, and
une source d’énergie.  a source of energy.
[Revendications 2] Système selon la revendication 1 caractérisé en ce que chaque boîtier électronique comporte en outre un second moyen de communication configuré de façon à ce que le boîtier électronique d’une première semelle soit apte à communiquer avec le boîtier électronique d’une seconde semelle, et qu’au moins un des modules de traitement de données soit configuré pour transformer des ensembles de données générés à partir des deux semelles composant la paire de semelles en au moins un paramètre biomécanique relatif à la technique de pédalage.  [Claims 2] System according to claim 1 characterized in that each electronic box further comprises a second communication means configured so that the electronic unit of a first baseplate is able to communicate with the electronic unit of a second sole, and that at least one of the data processing modules is configured to transform data sets generated from the two soles composing the pair of soles into at least one biomechanical parameter relating to the pedaling technique.
[Revendications 3] Système selon les revendications 1 et 2 caractérisé en ce que les modules de traitement de données communiquant entre eux, sont aptes d’une part à calculer une asymétrie entre les paramètres biomécaniques de la jambe droite par rapport aux paramètres biomécaniques de la jambe gauche et, d’autre part, à calculer la variabilité des paramètres biomécaniques associés à une jambe ou aux deux jambes. [Claims 3] System according to claims 1 and 2 characterized in that the data processing modules communicating with each other, are able on the one hand to calculate an asymmetry between the biomechanical parameters of the right leg with respect to the biomechanical parameters of the left leg and, on the other hand, to calculate the variability of the biomechanical parameters associated with one leg or both legs.
[Revendications 4] Système selon les revendications 1 à 3 caractérisé en ce que le module de traitement de données est apte à établir un profil de technique de pédalage de l’utilisateur à partir de paramètres biomécaniques tels que l’angle du pied, l’efficacité de la phase de poussée et de tirage, la position du pied, la cadence, la vitesse de rotation et la puissance.  [Claims 4] System according to claims 1 to 3 characterized in that the data processing module is able to establish a profile of the user's pedaling technique from biomechanical parameters such as the angle of the foot, the efficiency of the push and pull phase, foot position, cadence, rotation speed and power.
[Revendications 5] Système selon la revendication 1 caractérisé en ce que la transformation par le module de traitement de données comprend la segmentation des données en une pluralité de phases de pédalage.  [Claims 5] System according to claim 1, characterized in that the transformation by the data processing module comprises the segmentation of the data into a plurality of pedaling phases.
[Revendications 6] Système selon les revendications précédentes caractérisé en ce que chaque boîtier électronique comporte en outre d’autres capteurs, notamment un magnétomètre, un baromètre, un altimètre, des capteurs de force et de pression.  [Claims 6] System according to the preceding claims characterized in that each electronic box further comprises other sensors, including a magnetometer, a barometer, an altimeter, force and pressure sensors.
[Revendications 7] Système selon les revendications 4 et 6, caractérisé en ce que le calcul de la puissance de pédalage est effectué suite à la combinaison des données inertielles et de pression/force.  [Claims 7] System according to claims 4 and 6, characterized in that the calculation of the pedaling power is performed following the combination of the inertial data and the pressure / force data.
[Revendications 8] Système selon les revendications 1 à 7, caractérisé en ce que chacun des deux boîtiers est conçu de manière à être intégrable dans la pédale d'un vélo, ou dans la cale de la pédale d'un vélo.  [Claims 8] System according to claims 1 to 7, characterized in that each of the two housings is designed to be integrated in the pedal of a bicycle, or in the hold of the pedal of a bicycle.
[Revendications 9] Procédé de quantification de la technique de pédalage d’un utilisateur mettant en œuvre un système de quantification comportant une paire de semelles et un terminal externe, les semelles composant ladite paire de semelles, comportant chacune un boîtier électronique, chaque boîtier électronique comprenant une plateforme inertielle, un module de traitement de données, un module de stockage de données, un premier moyen de communication, et une source d’énergie, ledit procédé comportant les étapes suivantes :  [Claims 9] A method of quantifying the pedaling technique of a user implementing a quantization system comprising a pair of soles and an external terminal, the soles comprising said pair of soles, each comprising an electronic box, each electronic box comprising an inertial platform, a data processing module, a data storage module, a first communication means, and an energy source, said method comprising the following steps:
Génération, par la plateforme inertielle, d’un ensemble de données sur la technique de pédalage de l’utilisateur de la paire de semelles, Transformation, par le module de traitement de données, de l’ensemble de données généré en au moins un paramètre biomécanique, et comparaison de ces paramètres, Mémorisation, par le module de stockage de données, d’au moins un paramètre biomécanique, Generation, by the inertial platform, of a data set on the user pedaling technique of the pair of flanges, transformation, by the data processing module, of the data set generated into at least one parameter biomechanics, and comparison of these parameters, Storing, by the data storage module, at least one biomechanical parameter,
Transmission, par un premier moyen de communication d’au moins une des semelles, de l’au moins un paramètre biomécanique et/ou de la valeur représentative de l’évolution du pédalage de l’individu au terminal externe.  Transmission, by a first means of communication of at least one of the soles, of the at least one biomechanical parameter and / or of the value representative of the evolution of the pedaling of the individual to the external terminal.
EP19742825.3A 2018-05-11 2019-05-13 System for analyzing a pedalling technique of a cyclist and associated methods Pending EP3791400A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1870552A FR3081068B1 (en) 2018-05-11 2018-05-11 SYSTEM FOR THE ANALYSIS OF THE PEDALING TECHNIQUE OF A CYCLIST AND RELATED METHODS
PCT/FR2019/051080 WO2019215418A1 (en) 2018-05-11 2019-05-13 System for analyzing a pedalling technique of a cyclist and associated methods

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US20070145709A1 (en) 2003-06-20 2007-06-28 Hitoshi Matsumoto Pedaling correction device for bicycle
IES20080470A2 (en) 2008-06-09 2009-10-28 Ian Mellor Device and method for measurement of cycling power output
US8011242B2 (en) 2008-07-29 2011-09-06 Garmin Switzerland Gmbh System and device for measuring and analyzing forces applied by a cyclist on a pedal of a bicycle
GB201212299D0 (en) * 2012-07-11 2012-08-22 Brim Brothers Ltd Device and method for measuring forces applied by a cycling shoe
US11006690B2 (en) * 2013-02-01 2021-05-18 Nike, Inc. System and method for analyzing athletic activity
US11562417B2 (en) * 2014-12-22 2023-01-24 Adidas Ag Retail store motion sensor systems and methods
US20170188950A1 (en) * 2015-12-30 2017-07-06 Motion Metrix Corporation Shoe insert for monitoring of biomechanics and motion

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FR3081068B1 (en) 2021-05-21
WO2019215418A1 (en) 2019-11-14

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