Abstract: The present invention relates to a method for calibrating a gyrometer equipping a vehicle. The method includes a step (a) of acquisition, by the gyrometer, of a measured angular velocity of the vehicle, and, by measuring measured values of at least one quantity representative of the angular velocity of the vehicle. It also includes a step (b) of determination, by a data processor, of values of at least one gyrometer calibration parameter minimising a difference between a first estimated angular velocity of the vehicle and a second estimated angular velocity of the vehicle, wherein the first estimated angular velocity is a function of the measured angular velocity and parameters for calibrating the gyrometer, and the second estimated angular velocity is a function of the measured values of said at least one quantity representative of the angular velocity of the vehicle.

Abstract: The present invention relates to a method for calibrating a gyrometer (11) of an object (1) moving in an ambient magnetic field, the method being characterised in that it comprises the steps of: (a) Acquisition by the gyrometer (11) of a measured angular velocity, and by magnetic measuring means (20) secured to said object (1) of at least two components of the magnetic field; (b) Determination of values of at least one calibration parameter of the gyrometer (11) minimising a first expression defined by an estimated angular velocity of the object (1) and at least one first magnetic equation on the components of the magnetic field, the estimated angular velocity being a function of the measured angular velocity and of calibration parameters, and the at least one first magnetic equation assuming that the magnetic field is uniform and stationary.

Abstract: A method for calibrating a magnetometer. The magnetometer travels through (Si) a set of path positions, and acquires (S2) a plurality of measurements of the magnetic field. Trajectory information (S3) is provided representative of the location and the orientation of a point integral with the magnetometer. The measurements of the magnetic field are matched up (S4) with the trajectory information. A determination (S5) is made of calibration parameters of the magnetometer by the minimisation of a cost function involving, for a plurality of determination times, at least the calibration parameters, a measurement of the magnetic field, and a relationship linking the change in a magnetic field with the change in the location and in the orientation of the magnetometer derived from the trajectory information.

Abstract: The invention relates to a mobile sanitary device, in particular for a rail vehicle, comprising a vacuum toilet, a flush button, a power supply, a control device, and a control unit.

Abstract: The present invention relates to a method for locating an object (1) integral with a triaxial magnetic sensor (2) moving in a magnetic field generated by a set of at least three triaxial magnetic generators (3) static in a common reference frame, the method being characterised in that it includes the steps of: (a) For each generator (3) determining as a function of magnetic field measurements acquired by the sensor (2) and associated with said generator (3) a position of said sensor (2) in said common reference frame; (b) Calculating for each generator (3) a parameter representative of an error on said determined position of the sensor (2) for the generator (3); (c) Selecting a sub-set of the set of generators (3) as a function of said parameters estimated for each of the generators (3) said selected sub-set of the set of generators (3) including each generator (3) for which said estimated parameter is less than at least one reference threshold; (d) Estimating the position of the object (1) by merging the

Abstract: The present invention relates to a method for calibrating magnetometers (20) of an object (1) moving in an ambient magnetic field, the method being characterised in that it comprises the steps of: (a) Acquisition by the magnetometers (20), of at least three measured components of the magnetic field around the magnetometers (20), and by inertial measurement means (11) which are secured to the object (1), of an angular velocity of the object (1); (c) Determination, by data processing means (21), of values of at least one calibration parameter of the magnetometers (20) minimising an expression defined by estimated components of the magnetic field and at least one magnetic equation relating to the angular velocity of the object (1), the estimated components of the magnetic field being a function of the measured components of the magnetic field as well as of calibration parameters of the magnetometers (20), and the at least one magnetic equation assuming that the magnetic field is uniform and stationary aro

Abstract: The present invention relates to a method for calibrating a gyrometer (11) of an object (1) moving in an ambient magnetic field, the method being characterised in that it comprises the steps of: (a) Acquisition by the gyrometer (11) of a measured angular velocity, and by magnetic measuring means (20) secured to said object (1) of at least two components of the magnetic field; (b) Determination of values of at least one calibration parameter of the gyrometer (11) minimising a first expression defined by an estimated angular velocity of the object (1) and at least one first magnetic equation on the components of the magnetic field, the estimated angular velocity being a function of the measured angular velocity and of calibration parameters, and the at least one first magnetic equation assuming that the magnetic field is uniform and stationary.

Abstract: The present invention relates to a method for calibrating magnetometers (20) of an object (1) moving in an ambient magnetic field, the method being characterised in that it comprises the steps of: (a) Acquisition by the magnetometers (20), of at least three measured components of the magnetic field around the magnetometers (20), and by inertial measurement means (11) which are secured to the object (1), of an angular velocity of the object (1); (c) Determination, by data processing means (21), of values of at least one calibration parameter of the magnetometers (20) minimising an expression defined by estimated components of the magnetic field and at least one magnetic equation relating to the angular velocity of the object (1), the estimated components of the magnetic field being a function of the measured components of the magnetic field as well as of calibration parameters of the magnetometers (20), and the at least one magnetic equation assuming that the magnetic field is uniform and stationary aro

Abstract: The present invention relates to a method for calibrating a magnetometer (3) in which the magnetometer (3) is arranged inside the windings (21) of a generator (2), a magnetic field being generated by the generator (2), a series of measurements of the magnetic field with the magnetometer (3) being carried out by varying the position of the magnetometer (3) and/or the electric currents in the windings (21) between each measurement, the electric currents applied in the windings (21) also being measured, a parametric transfer model being generated from a parametric measurement model of the magnetometer including parameters for calibrating the magnetometer and a parametric model of the magnetic field, the parameters for calibrating the magnetometer (3) being calculated by an optimisation algorithm from the parametric transfer model and measurements of the magnetic field by the magnetometer and measurements of the currents in the windings.

Abstract: The present invention relates to a method for calibrating a gyrometer (11) equipping a vehicle (1), the method being characterised in that it comprises the steps of: (a) Acquisition by the gyrometer (11), of a measured angular velocity of the vehicle (1), and by means for measuring (20) at least one quantity representative of the angular velocity of the vehicle (1), of measured values of said at least one quantity representative of the angular velocity of the vehicle (1); (b) Determination by data processing means (21) of values of at least one parameter for calibrating the gyrometer (11) minimising a difference between a first estimated angular velocity of the vehicle (1) and a second estimated angular velocity of the vehicle (1), the first estimated angular velocity of the vehicle (1) being a function of the measured angular velocity and parameters for calibrating the gyrometer (11), and the second estimated angular velocity of the vehicle (1) being a function of the measured values of said at least

Abstract: The invention relates to a method for calibrating a magnetometer including the following steps: the magnetometer travels through (Si) a set of path positions, acquisition (S2) by the magnetometer of a plurality of measurements of the magnetic field, provision of trajectory information (S3) representative of the location and the orientation of a point integral with the magnetometer, matching up (S4) of the measurements of the magnetic field with the trajectory information, determination (S5) of calibration parameters of the magnetometer by the minimisation of a cost function involving, for a plurality of determination times, at least said calibration parameters, a measurement of the magnetic field, and a relationship linking the change in a magnetic field with the change in the location and in the orientation of the magnetometer derived from the trajectory information.

Abstract: The present invention relates to a method for locating an object (1) integral with a triaxial magnetic sensor (2) moving in a magnetic field generated by a set of at least three triaxial magnetic generators (3) static in a common reference frame, the method being characterised in that it includes the steps of: (a) For each generator (3) determining as a function of magnetic field measurements acquired by the sensor (2) and associated with said generator (3) a position of said sensor (2) in said common reference frame; (b) Calculating for each generator (3) a parameter representative of an error on said determined position of the sensor (2) for the generator (3); (c) Selecting a sub-set of the set of generators (3) as a function of said parameters estimated for each of the generators (3) said selected sub-set of the set of generators (3) including each generator (3) for which said estimated parameter is less than at least one reference threshold; (d) Estimating the position of the object (1) by merging the

Abstract: The present invention relates to a method for calibrating a magnetometer (3) in which the magnetometer (3) is arranged inside the windings (21) of a generator (2), a magnetic field being generated by the generator (2), a series of measurements of the magnetic field with the magnetometer (3) being carried out by varying the position of the magnetometer (3) and/or the electric currents in the windings (21) between each measurement, the electric currents applied in the windings (21) also being measured, a parametric transfer model being generated from a parametric measurement model of the magnetometer including parameters for calibrating the magnetometer and a parametric model of the magnetic field, the parameters for calibrating the magnetometer (3) being calculated by an optimisation algorithm from the parametric transfer model and measurements of the magnetic field by the magnetometer and measurements of the currents in the windings.