Patent application number | Description | Published |
20090144017 | DEVICE FOR LOCATING A RIGHT OR LEFT POSITION OF A TIRE AND WHEEL ASSEMBLY OF A VEHICLE - A location device is provided, in which the device is configured to be carried by a tire and wheel assembly so as to locate a right or left position of the assembly in a vehicle. The device includes two magnetic sensors with axes of maximum sensitivity; a measurement circuit for measuring a signal across terminals of each of the magnetic sensors, the measurement circuit being able to deliver two periodic signals phase-shifted with respect to one another and each periodic signal being representative of variations in values of a magnetic field detected by a corresponding magnetic sensor during a revolution of the tire and wheel assembly; and a calculation processor programmed to determine, based on the phase shift between the two periodic signals, a direction of rotation of the tire and wheel assembly, and to deduce from the direction of rotation and a direction of travel of the vehicle, a right or left location of the tire and wheel assembly. The two magnetic sensors have their axes of maximum sensitivity oriented in parallel, and in the two magnetic sensors are configured to be placed on the tire and wheel assembly at distinct azimuths. | 06-04-2009 |
20110148401 | DEVICE FOR LOCATING WHETHER A WHEEL-TIRE ASSEMBLY IS POSITIONED ON THE RIGHT OR THE LEFT OF A VEHICLE - A self-contained device intended to be carried by a wheel-tire assembly in order to locate whether the assembly is positioned on the right side or on the left side of a vehicle is described. The device includes two magnetic sensors with axes of maximum sensitivity, the sensors providing two periodic signals that are phase shifted relative to one another. Each signal is representative of variations in the magnitude of the magnetic field detected by the sensor during a revolution of the wheel-tire assembly. The device also includes a processing unit programmed to determine, from the phase shift between the two periodic signals, a direction in which the wheel-tire assembly is rotating and to deduce, from this direction of rotation and from a direction of travel of the vehicle, whether the wheel-tire assembly is located on the right side or on the left side. The two magnetic sensors are intended to be positioned on the wheel-tire assembly at distinct azimuthal locations. A filtering element of the device is designed to eliminate components of the two periodic signals having frequencies that are below or equal to a given frequency. | 06-23-2011 |
Patent application number | Description | Published |
20130022079 | METHOD FOR INTEGRATING SIGNALS TRANSMITTED FROM A TRANSMITTER TO AT LEAST ONE ULTRA WIDE BAND (UWB) RECEIVER AS WELL AS DEVICE FOR THE IMPLEMENTATION OF THE METHOD - The invention relates to a method and a device for integrating signals transmitted from a transmitter ( | 01-24-2013 |
20140211998 | METHOD FOR LOCATING AN OBJECT USING A REFERENCE GRID - A method for locating an object by a reference grid, the object moving in a plane parallel to or identical to that of the grid. When crossing of a line of the grid is detected by the object, its heading is determined and, as a function of the detection, probabilities of the thus crossed line being a horizontal line and a vertical line respectively are obtained. Displacement of the object is assessed from the probabilities obtained and a horizontal and vertical pitch of the grid. A position of the object is then updated from a position of the object determined during a last line crossing of the grid and the displacement thus assessed. | 07-31-2014 |
20150369598 | METHOD FOR LOCATING A DEVICE WHICH IS MOVED IN A THREE-DIMENSIONAL SPACE - A method of location of a device comprises providing a map containing several distinct zones, each distinct zone being associated with a displacement law from among a set of several different displacement laws. The displacement law associated with a zone making it possible to estimate more precisely, on the basis of the same measurements received, the direction and the amplitude of the displacement of the device when the latter is situated inside the zone than if any one of the other displacement laws of the set were used. The method also includes an operation of identifying the zone inside which a particle is situated, and then, an operation of using, for the updating of the coordinates of the particle, of just the displacement law associated with the zone identified during the identification operation. | 12-24-2015 |
20150369599 | METHOD FOR LOCATING A DEVICE WHICH IS MOVED IN A THREE-DIMENSIONAL SPACE - A method of location of a device includes the provision of a map containing at least one zone with favored direction of displacement associated with a favored direction of displacement. The method includes an operation of detecting the presence of a particle inside the zone. If the particle is detected as being present inside the zone, an operation of increasing a weight of the particle if the angular deviation between the direction of displacement of the particle from a position P | 12-24-2015 |
20150369958 | METHOD FOR LOCATING A DEVICE WHICH IS MOVED IN A THREE-DIMENSIONAL SPACE - A method of location of a device includes a displacement law containing a corrective factor of a bias combined by an arithmetical operation with a measured variable, and particles, each particle being associated with a current value of the corrective factor. The current value of the corrective factor being constructed at each iteration on the basis of a previous current value of the corrective factor, computed during a previous iteration, to which is added a random variable drawn according to a predefined probability law. The current values of various particles are initialized, before the first iteration, to various initial values, and during each iteration, for each particle whose coordinates are updated with the aid of this displacement law, the value of the corrective factor in the displacement law is taken equal to this corrective factor's current value associated with the particle. | 12-24-2015 |
20160084656 | METHOD FOR ESTIMATING A TRAJECTORY ORIENTATION FOLLOWED BY A MOVEMENT SENSOR CARRIER, CORRESPONDING DEVICE AND COMPUTER PROGRAM - A method estimating orientation of a path followed by a carrier of a movement sensor includes: determining an orientation of the movement sensor with respect to the path; estimating an orientation of the movement sensor with respect to a fixed reference; estimating an orientation of the path with respect to the fixed reference by the determined orientation of the movement sensor and the estimated orientation of the movement sensor; detecting start and end of a phase of disorientation of the movement sensor with respect to the path; updating, after the detected end of the disorientation phase, determined orientation of the movement sensor with respect to the path by orientation of the path with respect to the fixed reference as estimated at the detected start of the disorientation phase and orientation of the movement sensor with respect to the fixed reference as estimated after the detected end of the disorientation phase. | 03-24-2016 |