Abstract: A battery case, comprising an outer housing for mechanical protection and an inner casing for thermal confinement, said inner casing including at least one thermal insulation component and at least one flame protection component.

Abstract: The invention relates to a force application device for an aircraft control stick comprising: —a casing (24), —an electromagnet (22) mounted on the casing (24), —an actuator (30) mounted on the shaft (13), the actuator (30) being mobile in translation in relation to the shaft (13) along the axis (A), the actuator (30) comprising a magnetic material, and —a coupling device comprising an input gear (40) that is mounted so as to be stationary in relation to the casing (24) and an output gear (50) connected to the actuator (30) by means of an attachment part (60), the attachment part (60) being configured so as to allow a limited angular displacement between the output gear (50) and the shaft (13) around the axis (A) and to allow the actuator (30) of the output gear (50) to translate along the axis (A).

Abstract: A method of detecting degradation of a real tire of a wheel includes the steps of: acquiring at least one first three-dimensional object representative of the shape of the real tire by using an electronic appliance including at least one three-dimensional sensor, the first three-dimensional object being made up of a set of capture points; determining the position of the center point of the real tire from the set of capture points; registering the first three-dimensional object to obtain a second three-dimensional object; transforming the second three-dimensional object in order to obtain one or more two-dimensional objects; and analyzing the two-dimensional object(s) in order to detect degradation of the real tire.

Abstract: The invention relates to a weapon front handle, the handle extending along a given axis (X) and comprising a plate (4) for securing to a weapon and a grip (8) for gripping the handle, which grip is connected to the plate and shaped to present grooves (9) for receiving a user's fingers, the handle being characterized in that the grip is connected to the plate in such a manner as to be mounted to pivot relative to the plate about the given axis (X), the handle including at least one latch for temporarily blocking pivoting of the grip relative to the date about the given axis (X). The invention also relates to a weapon including such a front handle.

Abstract: A flux gate current sensor includes a magnetic core, a measurement winding, an excitation circuit arranged to generate a digital excitation signal, an acquisition circuit arranged to acquire an analog measurement voltage from the terminals of the measurement winding and to produce a digital measurement signal, a demagnetization servocontrol circuit arranged to use the digital measurement signal to produce a digital demagnetization signal for compensating magnetic flux produced by the current that is to be measured, a summing circuit arranged to sum the digital excitation signal and the digital demagnetization signal so as to obtain a digital injection signal, and an injection circuit arranged to produce an analog excitation current from the digital injection signal and to inject the analog excitation current into the measurement winding.

Abstract: The present invention relates to a force application device for a control stick of an aircraft, wherein the control stick comprises a control lever (1) rotating a shaft (A1) about a first axis (A), the device comprising a magnetic brake (5a) which comprises a magnetisable element (50a) mounted on the shaft and a magnetic transmitter (51a) which is opposite the magnetisable element and free to rotate about the first axis relative to the magnetisable element, the magnetic transmitter having an activated state in which the magnetic transmitter is supplied with current and generates a magnetic field in a volume occupied by the magnetisable element, and a deactivated state in which the magnetic transmitter is not supplied with current and does not generate a magnetic field, so as to prevent the magnetisable element from rotating about the shaft relative to the magnetic transmitter.

Abstract: A production method for producing a circuit optimized to be protected against radiation includes a preliminary characterization stage performed on a reference circuit. The preliminary characterization stage includes the steps of: irradiating the reference circuit a plurality of times; after each irradiation, if one or more reference elements of the reference circuit have failed, locating said reference element(s); and mapping the impact of the irradiations on the reference surface of the reference circuit. The production method further includes an optimization stage comprising the step of adapting the position of at least one optimized radiation-sensitive element on at least one optimized surface of the optimized circuit as a function of the mapping performed on the reference circuit.

Abstract: The invention relates to a computing unit, a switch connected to the computing unit, a user terminal connected to the switch in such a way that the computing unit, the switch and the user terminal form a communication system with a central architecture, and at least one communication system with a distributed architecture that is connected to the switch. The switch is designed to be used as an intermediate system for the communication system with the central architecture as well as for the communication system with the distributed architecture.

Abstract: A method and a device resets an inertial unit of a transport on the basis of information delivered by a viewfinder of the transport. According to one embodiment: a horizontal velocity vector of the transport and coordinates of the transport are obtained from the inertial unit, a horizontal line of sight of the viewfinder is obtained on at least one landmark, coordinates of at least one landmark are obtained, an angle between the horizontal velocity vector and the horizontal line of sight is computed, the drift of the computed angle is computed, an error is computed on the basis of the obtained coordinates, the computed angle and its computed drift, and the computed error is transferred to a Kalman filter for filtering the error and resetting the inertial unit.

Abstract: A method for calibrating a photodetector array supplying a video stream includes: a determination step, wherein an offset table is determined for each current image of the video stream based on at least two corrections from among the following: a first correction from a comparison of the current image to a corresponding predetermined reference table; a second correction from a calculation of a column error of the current image; and a third correction from a high-pass temporal filtering of the video stream; and a calculation step, wherein a current value of an offset table, equal to a sum between a previous value of the offset table and a weighted sum of at least two corrections, is calculated, with each coefficient of the offset table being associated with a respective photodetector of the array.

Abstract: A method for locating an element which can be transported by aircraft includes, for a first position of an aircraft: a) transmitting, from an antenna located in the aircraft, a first message intended for the transportable element; b) receiving, on the antenna, a second message transmitted by the transportable element upon receipt of the first message; c) obtaining a travel time of the first and second messages; d) determining a distance from the travel times; e) determining that the element is inside the aircraft if the distance is less than a value and that the element is outside the aircraft if the distance is greater than the value.

Abstract: A method of characterizing an inertial measurement unit includes a block carrying one accelerometer positioned on an axis of a measurement reference frame and having one gyro arranged to determine the orientation of the frame relative to an inertial reference frame. The method includes keeping the inertial measurement unit centered on a point that is stationary relative to the ground and that is in a predetermined environment, to obtain accelerometer signals that are images of at least one component of the specific force vector in the measurement reference frame and also gyro signals that are images of at least one component of the instantaneous rotation of the measurement reference frame; processing the signals to obtain data representative of projecting of the specific force vector into the inertial reference frame, after compensating for rotation of the Earth; and calculating Allan variance on the data and comparing it with reference data.

Abstract: The invention relates to a modular exoskeleton structure that provides force assistance to a user, comprising a base module (1) comprising a lumbar belt (11) capable of surrounding the lower trunk of the user, two hip modules capable of being attached to two respective thighs of the user, and a backpack support module (14) for an exoskeleton structure, comprising: a hoop (141) designed to be anchored to the hip modules, at the hips of a user, a support rod (142) designed to extend along the back of the user and capable of being engaged in a pouch of a backpack to suspend the backpack to the backpack support module (14), wherein the rod (142) comprises a first rod element (1421) connected to the hoop (141), a second rod element (1422) capable of sliding with respect to the first rod element (1421) so as to vary a length of the rod (142), and a damper for cushioning the movement of the second rod element (1421) with respect to the first rod element (1422) caused by the walking of the user.

Abstract: Detecting an object in an image of pixels is disclosed. The method includes: obtaining a position of a mask covering at least one pixel of an image; obtaining a predefined neighbourhood of pixels around the mask and dividing this neighbourhood into zones; for each zone, calculating a mean and variance of values of the pixels of the zone; calculating, for each possible pair of zones, a difference between the zones; determining whether a background of the mask is multimode or monomode according to the differences; calculating a variance of the values of the neighbourhood pixels using a formula for calculating the variance dependent on the monomode or multimode type of the background; calculating a signal to noise ratio for the mask position using the variance of the values of the pixels of the neighbourhood obtained; and detecting an object when the signal to noise ratio is above a threshold.

Abstract: The present invention relates to a method for transmitting data from an object (6) on board an aircraft (1) to a server (3) of a network of connected objects (4), the method comprising: if the aircraft (1) is detected as being in flight, the sending (108) of the data item by the object (6) to an aircraft radio communication device (10) of the aircraft (1) for communication with the ground, and the transmission of the data item by the aircraft communication system (10) to a ground station (2), for subsequent retransmission of the data item by the ground station (2) to the server (3); and, if the aircraft (1) is detected as not being in flight, the sending (116) of the data item by the object (6) to the server (3) without passing through the aircraft radio communication system (10) of the aircraft (1).

Abstract: A monitoring system including pieces of measuring equipment and an LPWAN reception terminal. Each piece of measuring equipment has a sensor arranged to measure a parameter of the aircraft, an LPWAN antenna and an LPWAN transmitter, an independent power source that powers the piece of measuring equipment, a main cut-off member connected between the independent power source and the LPWAN transmitter, and a main control component arranged to monitor operating parameters of the LPWAN transmitter and to open and close the main cut-off member selectively as a function of the operating parameters.

Abstract: An electrical connector pin comprising a link segment for linking to the connector and an end segment that is free, the end segment having a cross-section that presents at least one curved portion curved about an axis parallel to a longitudinal direction of the end segment and the end segment having side edges forming electrical contact portions that can be moved towards each other causing the curved portion to deform elastically.

Abstract: A path is defined to be followed by a vehicle in an environment represented by a graph of nodes connected by edges. Each node represents the vehicle's position. Each edge between two nodes indicates a transition cost between the two nodes. An instance of the graph, which is represented by a start node, a destination node and mandatory nodes through which the vehicle must pass, is obtained. An initial order of travel through the mandatory nodes is obtained by applying a procedure, using a graph convolutional neural network, adapted to the graph, to the instance. A procedure of local optimisation of the mandatory nodes is executed in order to obtain an optimised order. A path for the instance is defined to be resolved: from the optimised order and for each pair of nodes of the instance to be resolved, from a shortest path between the nodes of the pair.

Abstract: A process for producing a backplane circuit board (20) having an internal face (142) adapted to be connected to connectors (13) of circuit boards (12) and an external face (143) adapted to be connected to an external connector (15), blind holes (146, 148) opening on the internal face (142) and external face (143) of the backplane circuit board (20), wherein bonding layers (31, 32) having zones (41, 42) cleared of material facing the blind holes are used between the printed circuits (21, 22, 23).

Abstract: Detecting an object in an image of pixels is disclosed. The method includes: obtaining a position of a mask covering at least one pixel of an image; obtaining a predefined neighbourhood of pixels around the mask and dividing this neighbourhood into zones; for each zone, calculating a mean and variance of values of the pixels of the zone; calculating, for each possible pair of zones, a difference between the zones; determining whether a background of the mask is multimode or monomode according to the differences; calculating a variance of the values of the neighbourhood pixels using a formula for calculating the variance dependent on the monomode or multimode type of the background; calculating a signal to noise ratio for the mask position using the variance of the values of the pixels of the neighbourhood obtained; and detecting an object when the signal to noise ratio is above a threshold.