Abstract: The invention relates to a system for recording a track comprising: a utensil comprising a tip and equipped with a magnetic object; a device for locating the magnetic object configured to determine an estimated reference position on a writing surface; and a matrix-array touch sensor configured to define a set of M pixels, among N pixels, at least partially encircling the estimated reference position, and to detect the contact of the tip on the writing surface on the basis of the electrical signals generated by said set of M pixels.

Abstract: The invention relates to field of connected sport and specifically a method for quantifying sporting activity implemented by a communication system including: a proximity beacon associated with sports equipment, measuring equipment and a communication node, the method including: (a) communicating between the measuring equipment and the beacon in order to recover a first data packet comprising an identifier relating to a sporting activity associated with the sports equipment; (b) transmitting, to the node, a second data packet comprising the identifier; (c) at the node, determining parameterisation data of the measuring equipment according to the identifier; (d) transmitting, to the measuring equipment, a third data packet 230 comprising said parameterisation data; and (e) at the parameterised measuring equipment, quantifying the sporting activity.

Abstract: A system for analysis of use of a sliding board comprising at least one piezoelectric element configured to be secured to the sliding board and generate electric energy during deformations of the sliding board; and an electronic processing circuit configured for estimating at least one parameter of use of the sliding board and configured to be connected to the sliding board. The electronic processing circuit is powered by the electric energy generated by the at least one piezoelectric element.

Abstract: The method involves a step of measurement of a bearing force (Fpn) on a pedal (1) of the pedal set (4), different from the useful effort, exerted by the individual during a pedalling cycle, a step of determination of a maximum (max(Fpn)) of the bearing force measured during the pedalling cycle (CPj), and a step of estimation of a mean useful effort exerted by the individual during said pedalling cycle from the maximum of the bearing force determined and with the aid of a predetermined correlation function between a maximum bearing force during a pedalling cycle and a mean useful effort in said cycle.

Abstract: A system for analysis of use of a sliding board comprising at least one piezoelectric element configured to be secured to the sliding board and generate electric energy during deformations of the sliding board; and an electronic processing circuit configured for estimating at least one parameter of use of the sliding board and configured to be connected to the sliding board. The electronic processing circuit is powered by the electric energy generated by the at least one piezoelectric element.

Abstract: The method involves a step of measurement of a bearing force (Fpn) on a pedal (1) of the pedal set (4), different from the useful effort, exerted by the individual during a pedalling cycle, a step of determination of a maximum (max(Fpn)) of the bearing force measured during the pedalling cycle (CFj), and a step of estimation of a mean useful effort exerted by the individual during said pedalling cycle from the maximum of the bearing force determined and with the aid of a predetermined correlation function between a maximum bearing force during a pedalling cycle and a mean useful effort in said cycle.

Abstract: A bicycle pedal including a tube, assembled to freely rotate around an axis, and a pedal body including at least one first surface on which a cyclist is capable of exerting an effort, the pedal body being connected to the central tube by at least one connecting member including a first portion interposed between the tube and the first surface and fitted with at least one deformation gauge.

Abstract: A method and system for measuring the output power produced in a device having a crankset, includes: measuring the orthogonal force exerted on at least one pedal of the crank; determining the angular velocity of the crank; and deducing the tangential force exerted on the crank and the power, using a pre-established model of the distribution of the force exerted on the actuating member as a function of the angular velocity.

Abstract: A bicycle pedal including a tube, assembled to freely rotate around an axis, and a pedal body including at least one first surface on which a cyclist is capable of exerting an effort, the pedal body being connected to the central tube by at least one connecting member including a first portion interposed between the tube and the first surface and fitted with at least one deformation gauge.

Abstract: The invention relates to a method for measuring the output power produced in a device having a crankset, including the following steps: a) measuring the orthogonal force (F) exerted on at least one pedal (9) of the crank (3); b) determining the angular velocity of the crank; and c) deducing the tangential force (FT) exerted on the crank and the power, using a pre-established model of the distribution of the force exerted on the actuating member as a function of the angular velocity,