Safran Electronics & Defense

Valeo Schalter Und Sensoren Gmbh

Emmanuel Robert

Philippe Elie

Arnaud Davenel

David Roberfroid

Axel Barrau

Georges-Olivier Reymond

Benjamin Deleaux

Jacques Yelloz

Flavien Roland

Philippe Gougeon

Pascal Agostini

Thomas Bernal

A method of harmonizing a first inertial measurement unit and a second inertial measurement unit with each other includes the steps of: causing a control unit to compare the vectors measured by the inertial measurement units in order to determine a specific force difference and a rotation difference while taking account of the lever arms between the two measurement units; and causing the control unit to determine a harmonization value from the specific force difference and the rotation difference while taking account of the lever arms between the two measurement units. Navigation apparatus performs the method.

Method for harmonising two inertial measurement units with one another and navigation system implementing this method

A method for assisting with the navigation of a fleet of vehicles including a main vehicle and a secondary vehicle that is mobile in relation to the main vehicle, the method including receiving relative movement data, acquired by one or more sensors, between the main vehicle and the secondary vehicle, estimating a navigation status of the fleet of vehicles by an invariant Kalman filter using the received data as observations, the navigation status including first variables representing a first rigid transformation linking a location mark associated with the main vehicle to a reference point, and second variables representing a second rigid transformation linking a location mark associated with the main vehicle to a location mark associated with the secondary vehicle, the invariant Kalman filter using, as an internal composition law, a law including a term-by term composition of the first rigid transformation and the second rigid transformation.

Vehicle navigation assistance method and device using an invariant Kalman filter and a navigation status of a second vehicle

The method of preparing a navigation autonomy map for a vehicle covering a zone including path segments, comprising the following steps: identifying the path segments for which the map needs to be prepared; for each path segment, calculating a primary autonomy index in accordance with at least two distinct functions; and calculating for each path segment a final autonomy index by taking a weighted average of the primary autonomy indices. An autonomy map, an application of the autonomy map, and a vehicle using such an autonomy map.

Method for producing an autonomous navigation map for a vehicle

The invention concerns a device () for locating a target, comprising: &#x2014;a camera () that can be oriented in an orientation in view of the target so that the camera acquires an image of the target, and an orientation in view of a star so that the camera acquires at least one image of the star, &#x2014;an inertial unit () configured to calculate position and orientation data of the camera (), &#x2014;a resetting module () configured to a apply stellar resetting to the data on the basis of the image of the star, in order to produce reset data, &#x2014;a location module () configured to estimate a position of the target (T) from the image of the target (T) and the reset data, &#x2014;a communication interface for communicating with an operator station, the camera () passing from one orientation to the other in response to the reception, by the interface, of a command sent by the operator station.

Device for locating a target by stellar correction, intended to be on board a mobile carrier

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Boulogne Billancourt, France

Emmanuel Robert