Abstract

Device (1) for characterizing gas turbine engine wear, comprising: - an abradable material (8) comprising a wearing end (80) adapted to be arranged in contact with a flow of gaseous fluid (F) flowing from upstream to downstream of the gas turbine engine (2) when the gas turbine engine (2) is operating; - an ultrasonic transceiver (7) suitable for emitting an ultrasonic wave into the abradable material (8) and receiving a corresponding ultrasonic wave reflected by an inner surface of the wearing end (80); - an electronic circuit (10) connected to the ultrasonic transceiver (7) and configured to calculate information that enables the wear of the gas turbine engine (2) to be characterized.

IPC Classes  ?

• F01D 21/00 - Shutting-down of machines or engines, e.g. in emergencyRegulating, controlling, or safety means not otherwise provided for

Abstract

Device (1) for characterizing gas turbine engine wear, comprising: - an abradable electronic board (8) comprising at least one abradable electronic track (81), the abradable electronic board (8) being designed to be arranged in contact with a flow of gaseous fluid flowing from upstream to downstream of the gas turbine engine when the gas turbine engine is in operation; - a measurement electronic board (7) electrically connected to the abradable electronic track (81) so as to form an electric circuit (CE), the measurement electronic board (7) being suitable for determining information that enables the wear of the gas turbine engine (2) to be characterized.

IPC Classes  ?

• F01D 21/00 - Shutting-down of machines or engines, e.g. in emergencyRegulating, controlling, or safety means not otherwise provided for

Abstract

0aqXpp — a00 Xpp a00 Yqq Ypp Xqq 00 and the estimate of the angle of the angular sensor.

IPC Classes  ?

• G01C 19/5677 - Turn-sensitive devices using vibrating masses, e.g. vibratory angular rate sensors based on Coriolis forces using the phase shift of a vibration node or antinode of essentially two-dimensional vibrators, e.g. ring-shaped vibrators

Abstract

One aspect of the invention relates to a method (100) for optimizing critical software, which consists in creating a variant of the critical software. This variant of the critical software is obtained by adding instructions to the set of instructions of each elementary interval of the critical software. These added instructions make it possible in particular to generate interference during the execution of the critical software. In addition, these added instructions also make it possible to measure the actual execution time of each elementary interval of the critical software to which the instructions have been added and to collect measurements relating to the demands placed on the hardware. The method according to the invention therefore makes it possible to evaluate critical software able to be used in the context of optimizing the critical software.

IPC Classes  ?

• G06F 9/48 - Program initiatingProgram switching, e.g. by interrupt
• G06F 11/34 - Recording or statistical evaluation of computer activity, e.g. of down time, of input/output operation

Abstract

The present invention relates to a system for guiding an aircraft (1021), comprising: - an external-constraint calculation module designed, for at least one obstacle (102m), to define an envelope (E'm) surrounding the obstacle (102m), and to calculate an external constraint for bypassing the envelope (E'm); and - a predictive control module designed to implement predictive control while complying with the external constraint. Defining the envelope (E'm) used to calculate the external constraint comprises: - defining an initial envelope (Em) surrounding the obstacle (102m); - obtaining a relative speed (Av) of the aircraft (1021) with respect to the obstacle (102m); and - at least when the aircraft (1021) is approaching the obstacle (102m), enlarging the initial envelope (Em) at least in a direction (DAV) of the relative speed (Av) in order to obtain the envelope (E'm) used to calculate the external constraint, the enlargement being greater the higher an absolute value of the relative speed (Av).

IPC Classes  ?

• G05D 1/633 - Dynamic obstacles
• G05D 1/622 - Obstacle avoidance
• G05D 1/695 - Coordinated control of the position or course of two or more vehicles for maintaining a fixed relative position of the vehicles, e.g. for convoy travelling or formation flight
• G08G 5/80 - Anti-collision systems
• G05D 109/22 - Aircraft, e.g. drones with fixed wings

Abstract

This method for feeding back an artificial friction torque comprises the following steps: Calculating the difference between the position of the control stick at a given instant (Xm(t)) and the position of the anchor point at the preceding instant (Xc(t-1)) in the form of a positional difference (DIFF); Limiting the positional difference (DIFF) to a minimum value (MIN) or to a maximum value (MAX) using a saturation block (15); Calculating the position of the anchor point at the given instant (Xc(t)) by subtracting between the position of the control stick at the given instant (Xm(t)) and the limited positional difference (DIFFLIM); Obtaining a torque setpoint (Cm) as being the product of the limited positional difference (DIFFLIM) multiplied by a closed-loop control stiffness value (k).

IPC Classes  ?

• B64C 13/04 - Initiating means actuated personally
• B64C 13/08 - Trimming zero positions
• B64D 31/04 - Initiating means actuated personally

Abstract

The invention relates to an aircraft headlight which comprises a housing provided with a glass plate (6) and a plurality of collimators which are arranged in the housing and are oriented toward the glass plate (6), wherein: the glass plate (6) comprises an inner face (6a) and an outer face (6b); the glass plate (6) is provided with at least one light-scattering zone (12) which faces at least one of the collimators; and a periodic pattern (26) which is provided with a rounded surface (26a) is formed on at least one of the inner face and outer face (6a, 6b) of the glass plate (6) in the light-scattering zone (12).

IPC Classes  ?

• B64D 47/04 - Arrangements or adaptations of signal or lighting devices the lighting devices being primarily intended to illuminate the way ahead
• F21V 5/00 - Refractors for light sources
• F21V 5/04 - Refractors for light sources of lens shape

Abstract

Disclosed is an interconnection device (1) comprising at least two transmission channels (2a, 2b) each provided with one processing means (3a, 3b), each processing means comprising two inputs and two outputs and being designed to perform two distinct functions or one function according to two distinct definitions, the interconnection device (1) also being provided with an input multiplexer (9) and an output multiplexer (10) that are connected to the input and output of the processing means (3a, 3b), respectively, the interconnection device (1) also being provided with a configuration means (8) able to configure the multiplexers (9, 10) such that at least one input signal is transmitted to an input of one of the processing means (3a, 3b) and at least one output signal is transmitted from an output of one of the processing means (3a, 3b), the configuration means (8) also being able to choose one of the functions or one of the function definitions of the two processing means (3a, 3b).

IPC Classes  ?

• G05B 19/042 - Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
• G05B 9/03 - Safety arrangements electric with multiple-channel loop, i.e. redundant control systems
• G05B 23/02 - Electric testing or monitoring
• B64C 27/00 - RotorcraftRotors peculiar thereto
• B64C 13/50 - Transmitting means with power amplification using electrical energy

Abstract

The invention relates to an electric machine (1) comprising a stator (2) and a rotor (3) having an axis of rotation (X), one of the stator (2) or the rotor (3) coming around the other of the stator (2) or the rotor (3) such that an annular volume (4) is arranged between the stator (2) and the rotor (3), the rotor (3) comprising a ventilation device (5) movable in rotation relative to the stator (2), positioned at a first end (8a) of the electric machine (1) and configured to generate a flow of fluid in the annular volume (4) from a longitudinal inlet (6a) of the annular volume (4) positioned at the first end (8a) of the electric machine (1) to a longitudinal outlet (6b) of the annular volume (4) positioned at a second end (8b) of the electric machine (1), opposite the first end (8a).

IPC Classes  ?

• H02K 1/20 - Stationary parts of the magnetic circuit with channels or ducts for flow of cooling medium
• H02K 9/06 - Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft

Abstract

The invention relates to a keyboard key (1) comprising: - a base (2), - a plurality of light-emitting means (3) fastened to the base (2), - at least two light guides (4) fastened to the base (2) and configured to guide the light beam coming from the light-emitting means (3) towards an outer surface of the key (1), - a body (5) fastened to the base (2) and comprising housings (5a) for receiving the light guides (4), - a button (10) comprising an outer wall (11), a sealing membrane (12) secured to the outer wall (11), and a sliding member (13) on which the sealing membrane (12) is mounted and which is movable in translation in the body (5), and - a switching member (7) of the key, which is secured to the base (2) and configured to be in contact with the sliding member (13) in a position of actuation of the key (1).

IPC Classes  ?

• H01H 13/705 - Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches characterised by construction, mounting or arrangement of operating parts, e.g. push-buttons or keys

Abstract

zdMBMBPzdzdzdzd) to the locomotion unit (M2).

IPC Classes  ?

• G05D 1/683 - Intercepting moving targets
• G05D 109/28 - Missiles
• F41G 7/22 - Homing guidance systems

Abstract

The present invention relates to a method for image processing, comprising: - super-resolution reconstruction of a high-resolution image of a celestial body (102), such as Earth, from low-resolution images (IBRI...IBRN) taken by an on-board imager (106) in a vehicle, such as an aircraft or a space vehicle, designed to move at a distance from the celestial body (102). This method further comprises deblurring the high-resolution image by means of a model which was previously trained by machine learning in order to cancel out an intrinsic blur of the on-board imager (106) and a motion blur resulting from movement of the on-board imager (106) during an acquisition time for acquiring low-resolution images (IBRI -..IBRN).

IPC Classes  ?

• G06T 3/4046 - Scaling of whole images or parts thereof, e.g. expanding or contracting using neural networks
• G06T 3/4053 - Scaling of whole images or parts thereof, e.g. expanding or contracting based on super-resolution, i.e. the output image resolution being higher than the sensor resolution
• G06T 5/60 - Image enhancement or restoration using machine learning, e.g. neural networks
• G06T 5/73 - DeblurringSharpening

Abstract

The invention relates to an optical component (6) that consists of a body (8) provided with an upper face (10), a lower face (12), and at least three reflective side faces, each side face extending from the upper face (10) to the lower face (12), the body (8) being intended to be rotatable about an axis that extends between the upper and lower faces (10, 12). At least one of the side faces (14b, 14d) is said to be "positive". At least one of the side faces (14c, 14e) is said to be "negative".

IPC Classes  ?

• G01S 7/481 - Constructional features, e.g. arrangements of optical elements
• G01S 17/933 - Lidar systems, specially adapted for specific applications for anti-collision purposes of aircraft or spacecraft
• G01S 17/89 - Lidar systems, specially adapted for specific applications for mapping or imaging

Abstract

The invention relates to monitoring of the state of health of an energy store of a computer, in particular in an aircraft. One aspect of the invention relates to a method for determining the state of health of an energy store of an embedded computer.

IPC Classes  ?

• G06F 1/30 - Means for acting in the event of power-supply failure or interruption, e.g. power-supply fluctuations
• G06F 1/28 - Supervision thereof, e.g. detecting power-supply failure by out of limits supervision
• H02H 3/24 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection responsive to undervoltage or no-voltage
• G01R 31/392 - Determining battery ageing or deterioration, e.g. state of health

Abstract

The invention relates to a method for analysing a state of wear of a parachute system, comprising obtaining data over time using one or more sensors comprising at least one pressure sensor on board the parachute system, and determining a state of wear of the parachute system from said data.

IPC Classes  ?

• B64D 17/00 - Parachutes
• B64F 5/60 - Testing or inspecting aircraft components or systems
• G01C 5/06 - Measuring heightMeasuring distances transverse to line of sightLevelling between separated pointsSurveyors' levels by using barometric means
• B64D 45/00 - Aircraft indicators or protectors not otherwise provided for

Abstract

The present document relates to an electrical isolation barrier (35) for an aircraft DC-to-DC conversion structure, comprising: a power transformer (36) that has: a primary winding (36a) electrically connected to the inverter (32) of the high-voltage power network (31); a secondary winding (36b) electrically connected to the rectifier (38) of the low-voltage power network (37); and a closed magnetic circuit (36c), the primary winding (36a) and the secondary winding (36b) being wound around the closed magnetic circuit (36c); and at least two primary capacitors (Cp), each arranged in series with the primary winding (36a) of the transformer and/or at least two secondary capacitors (Cs), each arranged in series with the secondary winding (36b) of the power transformer (36).

IPC Classes  ?

• H02M 3/335 - Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
• H02M 1/32 - Means for protecting converters other than by automatic disconnection

Abstract

The invention relates to a mechanism comprising at least one first part and one measurement sensor (10), the measurement sensor comprising: - a body (11) arranged so as to be attached to a first portion of the first part; - a rod (13) slidably mounted in the body (11); - a member (19) for returning the rod (13) to the first part such that one end of the rod (13) is permanently kept in contact: * with a second portion of the first part, the sensor then being arranged so as to evaluate a distance between the two portions of the first part; or * with a second part of the mechanism, the sensor then being arranged so as to evaluate a distance between the two parts of the mechanism; the sensor (10) comprising an antenna (32) which is arranged so as to power the sensor (10) and to retrieve and transmit a signal representative of a distance.

IPC Classes  ?

• G01B 5/00 - Measuring arrangements characterised by the use of mechanical techniques
• B60T 17/22 - Devices for monitoring or checking brake systemsSignal devices
• B64C 25/42 - Arrangement or adaptation of brakes
• B64F 5/60 - Testing or inspecting aircraft components or systems
• F16D 66/02 - Apparatus for indicating wear
• G01B 5/14 - Measuring arrangements characterised by the use of mechanical techniques for measuring distance or clearance between spaced objects or spaced apertures
• G01B 7/02 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width, or thickness
• F16D 66/00 - Arrangements for monitoring working conditions of brakes, e.g. wear or temperature

Abstract

The invention relates to a method for communication between a high-security critical component (11) of a computer (1) and a low-security non-critical component (12) of the computer (1), the method being implemented within a controller (2) positioned in the computer (1) between the critical component (11) and the non-critical component (12), the computer (2) being configured to open or close a data stream on a critical link (22) between the critical component (11) and the non-critical component (12).

IPC Classes  ?

• G06F 21/50 - Monitoring users, programs or devices to maintain the integrity of platforms, e.g. of processors, firmware or operating systems
• G06F 21/60 - Protecting data
• G06F 21/85 - Protecting input, output or interconnection devices interconnection devices, e.g. bus-connected or in-line devices
• H04L 9/40 - Network security protocols

Abstract

The invention relates to an observation device (1) which comprises a mechanical structure, a display module (5), an optical combiner (7) and an optical system (9) which is configured to direct an image output from the display module (5) towards the optical combiner (7), the optical combiner (7) directing, towards an observation zone (11), the overlay of a light beam originating from an observed scene (15) via a direct optical path (3) and the image output from the display module (5), the observation device (1) comprising a rangefinder (27) which is configured to emit and receive a laser beam towards and from the observed scene (15) by passing the laser beam through the direct optical path (3).

IPC Classes  ?

• G01S 17/08 - Systems determining position data of a target for measuring distance only
• G01S 7/51 - Display arrangements
• G01S 7/481 - Constructional features, e.g. arrangements of optical elements
• F41G 3/06 - Aiming or laying means with rangefinder
• F41G 1/38 - Telescopic sights specially adapted for smallarms or ordnanceSupports or mountings therefor
• F41G 1/473 - Sighting devices for particular applications for lead-indicating or range-finding, e.g. for use with rifles or shotguns

Abstract

The invention relates to an optronic sight having a critical mode, in particular an anti-resonance mode, comprising a variable fundamental frequency, and to a motorised vehicle comprising such a sight. This optronic sight for a motorised vehicle such as an aerial, marine or land vehicle, comprises: - a sighting module (13) capable of being moved about a first axis (X) and a second axis (Y) which is not parallel to the first axis; - means (14, 15) for moving the sighting module about the first axis and the second axis; and - a servo loop for slaving a position parameter of the sighting module to a setpoint, comprising an adaptive servo corrector (16) capable of calculating a command for a controlled device having a critical mode modifying the response of the device. The sight comprises means (23) capable of determining a fundamental frequency of the variable critical mode on the basis of an operating parameter of the controlled device, the corrector (16) being calculated from the fundamental frequency determined to compensate for the anti-resonance or resonance mode.

IPC Classes  ?

• F41G 3/16 - Sighting devices adapted for indirect laying of fire
• F41G 3/22 - Aiming or laying means for vehicle-borne armament, e.g. on aircraft
• G01S 3/786 - Systems for determining direction or deviation from predetermined direction using adjustment of orientation of directivity characteristics of a detector or detector system to give a desired condition of signal derived from that detector or detector system the desired condition being maintained automatically
• G01S 7/497 - Means for monitoring or calibrating
• G02B 27/64 - Imaging systems using optical elements for stabilisation of the lateral and angular position of the image

Abstract

The invention relates to a gravity gradiometer comprising at least two vehicles (V1, V2), each comprising an inertial measurement unit (UMI1, UMI2) and a control unit (COM1, COM2) for controlling the vehicles along paths having separate segments for performing inertial-measurement-unit reversals and coupled segments for exchanging inertial measurements. At least one of the electronic control units is arranged so to determine, in particular from the exchanged measurements: a transformation matrix between the inertial reference frames, a correction of the linear-acceleration measurements based on an observed accelerometric model, a correction of the angular-velocity measurements based on an observed gyrometric model, and a gradient of the gravitational field. The invention also relates to a navigation system comprising such a gravity gradiometer.

IPC Classes  ?

• G01C 21/00 - NavigationNavigational instruments not provided for in groups
• G01C 21/16 - NavigationNavigational instruments not provided for in groups by using measurement of speed or acceleration executed aboard the object being navigatedDead reckoning by integrating acceleration or speed, i.e. inertial navigation
• G01V 7/16 - Measuring gravitational fields or wavesGravimetric prospecting or detecting specially adapted for use on moving platforms, e.g. ship, aircraft

Abstract

The invention relates to a fluxgate current sensor (30), comprising: - a first magnetic core (34) and a first excitation winding (45), a second magnetic core (35) and a second excitation winding (46); - excitation components (37) designed to produce a first excitation voltage (Ve1) and apply it to the first excitation winding, and to produce a second excitation voltage (Ve2) and apply it to the second excitation winding, the first excitation voltage and the second excitation voltage being voltages that are identical but in phase opposition; - measurement components (38) designed to produce an output voltage (Vs) representative of the target current from a first measurement voltage (Vm1) and a second measurement voltage (Vm2).

IPC Classes  ?

• G01R 15/18 - Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
• G01R 19/00 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof
• G01R 19/10 - Measuring sum, difference, or ratio

Abstract

The invention relates to a current divider (31) comprising: - metallised holes (105, 106) forming a first branch (32) of the current divider and a second branch (33) of the current divider through which the target current flows; - wherein the first branch comprises first metallised holes (105a) extending between a first surface (107) of a first conductive layer and a first surface (109) of a second conductive layer, and second metallised holes (105b) extending between a second surface (108) of the first conductive layer and the first surface of the second conductive layer, wherein the metallised holes (105) of the first branch comprise pairs of adjacent metallised holes, and wherein each pair comprises a first metallised hole (105a) and a second metallised hole (105b).

IPC Classes  ?

• G01R 15/18 - Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
• G01R 19/00 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof
• G01R 19/10 - Measuring sum, difference, or ratio
• G01R 15/14 - Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks

Abstract

The invention relates to a method for controlling a device (104) of a vehicle (102) in order to modify a state of the vehicle (102), of the type comprising, for each problem (P) in a domain (D), the domain (D) defining possible actions of the device (104) modifying the state of the vehicle (102) and the problem (P) indicating a starting state of the vehicle (102) and an end state of the vehicle (102): - using planner software (110) installed on an on-board computer system (108) in the vehicle (102) to search for a solution (S) to the problem (P), the solution (S) listing actions in the domain (D) for transitioning from the starting state to the end state; - using validator software (116) installed on the on-board computer system (108) to evaluate the solution (S); and - if the solution (S) is validated by the validator software (116), transmitting the solution (S) to a system (106) for controlling the device (104) so that the device successively carries out the actions listed in the solution (S). The validator software (116) is obtained beforehand by translating the domain (D) using translator software (114) executed by a computer system (114) external to the vehicle (102), such that the validator software (116) is dedicated to the domain (D) and then installed on the on-board computer system (108).

IPC Classes  ?

• H04L 67/12 - Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
• H04L 67/00 - Network arrangements or protocols for supporting network services or applications
• G06F 8/61 - Installation
• G06F 8/30 - Creation or generation of source code

Abstract

The invention relates to a wireless sensor comprising a first printed circuit board (11), a first electronic circuit extending over a first portion (11.1) of the first printed circuit board (11), an antenna (14) electrically connected to the first electronic circuit, and a battery (13) that powers the first electronic circuit. The sensor comprises an internal casing (20) surrounding at least the battery (13) and which is closed at least partially by the first portion (11.1) of the first printed circuit board (11), the antenna (14) extending out of the internal casing (20), and an external casing (30) made of at least two attached parts that can be separated from each other, namely a first part (31) mainly extending around the internal casing (20) and around the first portion (11.1) of the first printed circuit board (11) and a second part (32) surrounding the antenna (14). The invention further relates to a vehicle wheel and an aircraft comprising such a sensor.

IPC Classes  ?

• B60C 23/04 - Signalling devices actuated by tyre pressure mounted on the wheel or tyre

Abstract

The invention relates to an imager (1) comprising: - an array of spectral filters formed of a repeating pattern of spectral filters; - an array of polarisers; - an array of photosensors; and - a processing device designed so that, for each of the different spectral bands, it forms at least one image of pixels having positions in the image that correspond, respectively, to predefined positions (i, j) of a mask (M) in the array of photosensors, wherein each of the pixels is calculated on the basis of the brightnesses measured by the photosensors for the stated spectral band contained in the mask (M) at the position (i, j) of the pixel. The pattern of spectral filters is designed such that, for each of the different spectral bands and for all of the predefined positions (i, j) of the mask (M), the photosensors for the stated spectral band have an isobarycentre located in a central virtual box (PVC) of the mask (M) having the same size as the boxes of the array of photosensors, and each of the predefined positions (i, j) of the mask (M) is offset from another predefined position (i, j) by a column or row of the array of photosensors.

IPC Classes  ?

• G01C 21/02 - NavigationNavigational instruments not provided for in groups by astronomical means
• G02B 5/20 - Filters
• G01J 4/04 - Polarimeters using electric detection means
• G01C 11/02 - Picture-taking arrangements specially adapted for photogrammetry or photographic surveying, e.g. controlling overlapping of pictures
• G01J 3/02 - SpectrometrySpectrophotometryMonochromatorsMeasuring colours Details
• G01J 3/28 - Investigating the spectrum

Abstract

One aspect of the invention relates to a protection device (3) for an electronic component, comprising two doped semiconductor layers (4, 6) separated by an insulating layer (8), wherein an opening (9) is formed in the insulating layer (8) in order to align the first and second electrodes (4, 6), and wherein a distance (h46) separating the two semiconductor layers (4, 6) is less than 5 µm.

IPC Classes  ?

• H10D 89/60 - Integrated devices comprising arrangements for electrical or thermal protection, e.g. protection circuits against electrostatic discharge [ESD]
• H01L 23/60 - Protection against electrostatic charges or discharges, e.g. Faraday shields

Abstract

The invention relates to a method for calibrating an inertial measurement system (1) that is located onboard a carrier (P) and that comprises a first angular sensor (10) and at least one second angular sensor (20) having parallel sensing axes. The method comprises the steps of: controlling the first angular sensor (10) so as to cause the vibration wave to rotate by a predetermined angle about the sensing axis by varying a value of a command parameter of the first angular sensor (10), and calculating the integral of the value of the command parameter; during the rotation of the vibration wave of the first angular sensor (10), controlling the second angular sensor (20) so as to take a reference rotation measurement and calculating the integral of the reference rotation measurement; calculating a difference between the integral of the value of the command parameter and the integral of the reference rotation measurement; making an estimate of the scale factor of the first angular sensor (10) based on a ratio of said difference and of the predetermined angle so as to calibrate the first angular sensor (10). The invention also relates to a system for implementing this method.

IPC Classes  ?

• G01C 19/5691 - Turn-sensitive devices using vibrating masses, e.g. vibratory angular rate sensors based on Coriolis forces using the phase shift of a vibration node or antinode of essentially three-dimensional vibrators, e.g. wine glass-type vibrators
• G01C 25/00 - Manufacturing, calibrating, cleaning, or repairing instruments or devices referred to in the other groups of this subclass

Abstract

The invention relates to an interconnection device (1) intended to interconnect at least two circuit boards (50), the device comprising a body (10) made of at least one polymer material and a plurality of electrically conductive tracks (20) extending from a first face of the body (10) to a second face of the body (10). According to the invention, the interconnection device (1) comprises a first connector (41) fixedly mounted on the first face of the body (10) and a second connector (42) fixedly mounted on the second face of the body (10), wherein the first connector (41) is in electrical contact with the electrically conductive tracks (20) and is intended to be connected to a first circuit board (51), and the second connector (42) is in electrical contact with the electrically conductive tracks (20) and is intended to be connected to a second circuit board (52). The invention also relates to a method for manufacturing such an interconnection device (1). The invention also relates to an associated aircraft.

IPC Classes  ?

• H05K 1/02 - Printed circuits Details
• H05K 3/36 - Assembling printed circuits with other printed circuits
• H05K 1/03 - Use of materials for the substrate
• H05K 3/10 - Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern
• H05K 1/14 - Structural association of two or more printed circuits

Abstract

The invention relates to an optronic detection device (D) comprising: an optronic sensor (3) comprising an array of photosensitive elements (E); a filter array (4) comprising at least first filters (B1) transparent to a first wavelength range and second filters (B2) transparent to a second wavelength range, wherein the first filters (B1) and the second filters (B2) are distributed in a regular pattern, each facing one of the photosensitive elements (E); an optical system (5) extending in front of the filter array (4). The optical system (5) comprises at least one diffraction grating (6) arranged such that any incident radiation from an external point source strikes one of the first filters (Bl) and one of the second filters (B2). The invention also relates to a vehicle comprising such a device.

IPC Classes  ?

• H04N 25/131 - Arrangement of colour filter arrays [CFA]Filter mosaics characterised by the spectral characteristics of the filter elements including elements passing infrared wavelengths
• H04N 23/23 - Cameras or camera modules comprising electronic image sensorsControl thereof for generating image signals from infrared radiation only from thermal infrared radiation
• H04N 23/21 - Cameras or camera modules comprising electronic image sensorsControl thereof for generating image signals from infrared radiation only from near infrared [NIR] radiation
• F41G 7/22 - Homing guidance systems
• G02B 5/18 - Diffracting gratings
• G02B 26/08 - Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
• G01J 3/18 - Generating the spectrumMonochromators using diffraction elements, e.g. grating
• H04N 23/55 - Optical parts specially adapted for electronic image sensorsMounting thereof

Abstract

One aspect of the invention relates to a regulation system (100) comprising: - a micro-electro-mechanical system (200) or "MEMS", comprising a base (210); - at least one thermal micromachine (300) configured to operate according to a Stirling cycle, comprising: - an expansion volume (310) delimited in part by a first deformable membrane (130); - a rear volume (330) separated from the expansion volume (310) by means of the first deformable membrane (130); wherein the base (210) of the MEMS (200) partially delimits the rear volume (330).

IPC Classes  ?

• F02G 1/043 - Hot gas positive-displacement engine plants of closed-cycle type the engine being operated by expansion and contraction of a mass of working gas which is heated and cooled in one of a plurality of constantly communicating expansible chambers, e.g. Stirling cycle type engines

Abstract

The invention relates to an optical system (17) with a magnification equal to 1, comprising a first set of lenses (19) configured to focus an input image on a first intermediate focal plane (21), an optical device (23) configured to achieve a magnification greater than 2 between the first intermediate focal plane (21) and a second intermediate focal plane (25), and a second set of lenses (29) configured to refract the second intermediate focal plane (25) at infinity.

IPC Classes  ?

• G02B 25/00 - EyepiecesMagnifying glasses
• G02B 27/00 - Optical systems or apparatus not provided for by any of the groups ,
• G02B 13/22 - Telecentric objectives or lens systems

Abstract

The present invention relates to a network (100) comprising a plurality of entities (1), each entity (1) forming a node of the network (100), wherein each entity (1) comprises: - a location device (2) configured to generate a location signal (200); - a clock (3) configured to generate a time datum (205) indicative of the generation time of the location signal (200); and - a data processing device (4) configured to determine, by means of the location signal (200) and the time datum (205), the propagation time of the location signal (200) between two entities (1) of the network (100) and to deduce therefrom the distance between the two entities (1).

IPC Classes  ?

• G01S 1/04 - Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmittersReceivers co-operating therewith using radio waves Details
• G01S 5/00 - Position-fixing by co-ordinating two or more direction or position-line determinationsPosition-fixing by co-ordinating two or more distance determinations
• G01S 5/02 - Position-fixing by co-ordinating two or more direction or position-line determinationsPosition-fixing by co-ordinating two or more distance determinations using radio waves
• G01S 11/08 - Systems for determining distance or velocity not using reflection or reradiation using radio waves using synchronised clocks
• G01S 19/47 - Determining position by combining measurements of signals from the satellite radio beacon positioning system with a supplementary measurement the supplementary measurement being an inertial measurement, e.g. tightly coupled inertial

Abstract

The present invention relates to a method for attaching (P) a component (3a) to an electronic board (1), comprising the following steps: - filling (E2) the window (8) of a first screen-printing screen with solder paste (9); - applying (E3) a heat treatment to the printed circuit board (2) in order to transform the solder paste (9) into a contact pad (11); - filling (E5) the window (13) of a second screen-printing screen with solder paste; - placing (E6) a component (3a) on the solder paste (14); - applying (E7) a heat treatment to the printed circuit board (2) so as to transform the solder paste (14) into a solder joint (6a).

IPC Classes  ?

• H05K 3/12 - Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern using printing techniques to apply the conductive material
• H05K 3/22 - Secondary treatment of printed circuits
• H05K 3/34 - Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by soldering

Abstract

Control device (20), in particular for an aircraft, comprising at least one hand controller (21) secured to a control lever (24) that can move over a travel along a path and at least one force feedback device (22) capable of generating a resistive or driving force on said control lever (24) over at least part of the travel, the force feedback device (22) comprising at least a main casing (23), characterized in that the force feedback device (22) comprises: - a movable magnetic element (25) movable in the main casing (23); and - at least one first fixed magnetic element (26, 27) located at one end of the travel of the control lever (24) and intended to cooperate with the movable magnetic element (25) when the control lever (24) is in an end-of-travel zone.

IPC Classes  ?

• B64C 13/04 - Initiating means actuated personally
• B64C 13/10 - Initiating means actuated personally comprising warning devices
• B64D 31/04 - Initiating means actuated personally

Abstract

One aspect of the invention relates to a method for accessing memory in a computer network contained in an aircraft, the computer network comprising at least a first device and a second device, the method comprising: - transmitting, by the first device, at least one sequential access request for sequentially accessing a memory of the second device via a serial bus, wherein the sequential access request comprises a plurality of contiguous memory addresses; - receiving, by an address conversion module contained in the network and connected to the first device via the serial bus, the sequential access request; - for each address of the plurality of contiguous memory addresses, converting, by the network address conversion module, the address into a converted address on the basis of predefined descriptors; - transmitting, by the network address conversion module, an access request for accessing the memory of the second device, wherein each access request comprises at least one converted memory address.

IPC Classes  ?

• G06F 3/14 - Digital output to display device
• G06F 13/28 - Handling requests for interconnection or transfer for access to input/output bus using burst mode transfer, e.g. direct memory access, cycle steal
• G06F 12/1081 - Address translation for peripheral access to main memory, e.g. direct memory access [DMA]

Abstract

The invention relates to a device (3) for detecting infrared electromagnetic radiation, the device comprising a housing (5) that defines a vacuum chamber (7) and comprises a window (9) transparent to the infrared electromagnetic radiation, wherein the device (3) comprises, positioned in the chamber (7), one end of a cold finger (15), a cold shield (11), and a sensor (13), wherein the cold shield (11) and the sensor (13) are configured to be cooled by the cold finger (15), and wherein the cold shield (11) comprises an opening (17) configured to allow the infrared electromagnetic radiation to pass from the window (9) to the sensor (13), and wherein the device (3) comprises a filter (29) positioned along the path of the infrared electromagnetic radiation between the window (9) and the sensor (13), wherein the filter (29) is configured to transmit or reflect rays of the infrared electromagnetic radiation depending on their angle of incidence on the filter (29).

IPC Classes  ?

• G01J 5/02 - Constructional details
• G01J 5/04 - Casings
• G01J 5/061 - Arrangements for eliminating effects of disturbing radiationArrangements for compensating changes in sensitivity by controlling the temperature of the apparatus or parts thereof, e.g. using cooling means or thermostats
• G01J 5/07 - Arrangements for adjusting the solid angle of collected radiation, e.g. adjusting or orienting field of view, tracking position or encoding angular position
• G01J 5/0802 - Optical filters

Abstract

The invention relates to a method for detecting and characterising laser radiation by a laser alert system comprising a laser alert device comprising at least one logarithmic-response sensor under high photon flux, which comprises: - a step of acquiring an image by the sensor according to an exposure; - a step of detecting a spot from the acquired image; - a step of determining a response of the sensor to the laser radiation by an analysis of the detected spot; - a step of calculating a diameter of the detected spot; - a step of comparing the calculated value of the diameter of the spot with a predetermined maximum theoretical value; and - a step of characterising the laser radiation according to the response of the sensor, the result of the comparison and at least one map connecting the response of the sensor to characteristics of the laser radiation.

IPC Classes  ?

• G01S 7/4863 - Detector arrays, e.g. charge-transfer gates
• G01S 7/495 - Counter-measures or counter-counter-measures
• G01S 7/48 - Details of systems according to groups , , of systems according to group
• G01S 3/784 - Systems for determining direction or deviation from predetermined direction using amplitude comparison of signals derived from static detectors or detector systems using a mosaic of detectors
• G01S 3/786 - Systems for determining direction or deviation from predetermined direction using adjustment of orientation of directivity characteristics of a detector or detector system to give a desired condition of signal derived from that detector or detector system the desired condition being maintained automatically

Abstract

i1Nx1NjkAAkAAjjAAA computed after a determined duration (TE).

IPC Classes  ?

• G01S 19/20 - Integrity monitoring, fault detection or fault isolation of space segment

Abstract

The invention relates to a multispectral imager (1) comprising a sensor (3) and an optical system (5) that comprises a spectral-focusing optical group (9) and an axial movement system (13) for axially moving the spectral-focusing optical group (9), wherein the optical system (5) is configured to refract electromagnetic radiation (R) incident on the sensor (3) and to implement spectral defocusing of the refracted electromagnetic radiation (R), wherein the spectral defocusing is greater than 100 micrometres for a difference of 100 nanometres in wavelength, and wherein the axial movement system (13) makes the spectral-focusing optical group (9) movable between a focusing position on the sensor (3) for electromagnetic radiation (R) with a wavelength of 500 nm, and a focusing position for electromagnetic radiation (R) with a wavelength of 1800 nm.

IPC Classes  ?

• G01J 3/02 - SpectrometrySpectrophotometryMonochromatorsMeasuring colours Details
• G01J 3/06 - Scanning arrangements
• G01J 3/28 - Investigating the spectrum

Abstract

The invention relates to a telescope (1) comprising: - a primary mirror (10) mounted on a support (11); - a secondary mirror (20) surrounded by a secondary ring (21) securing the secondary mirror to an armature (30); - an articulated structure (40) arranged between the support (11) and the armature (30) in order to allow six degrees of freedom for the secondary mirror (20) with respect to the primary mirror (10); - a plurality of piezoelectric actuators (50) mounted so as to move the secondary mirror (20) by acting on the articulated structure (40); - at least one sensor (70) for sensing the alignment of the primary mirror (10) and of the secondary mirror (20); - an electronic processing unit electrically connected to the actuators and arranged to control the actuators (50) so as to maintain alignment between the primary mirror (10) and the secondary mirror (20).

IPC Classes  ?

• G01B 11/27 - Measuring arrangements characterised by the use of optical techniques for measuring angles or tapersMeasuring arrangements characterised by the use of optical techniques for testing the alignment of axes for testing the alignment of axes
• G02B 7/182 - Mountings, adjusting means, or light-tight connections, for optical elements for prismsMountings, adjusting means, or light-tight connections, for optical elements for mirrors for mirrors

Abstract

kkk of the coordinates of the star (k) in the frame of reference of the line of sight such that formula (I); • - setting a cost function formula (II) and searching for the optimal values of the rotation matrix T to minimise the cost function; and • - recording the values of the rotation matrix thus defined. The invention also relates to an optronic device and vehicle used to carry out this method.

IPC Classes  ?

• G01C 21/02 - NavigationNavigational instruments not provided for in groups by astronomical means
• G01C 21/16 - NavigationNavigational instruments not provided for in groups by using measurement of speed or acceleration executed aboard the object being navigatedDead reckoning by integrating acceleration or speed, i.e. inertial navigation
• G01C 25/00 - Manufacturing, calibrating, cleaning, or repairing instruments or devices referred to in the other groups of this subclass
• F41G 3/00 - Aiming or laying means
• F41G 3/22 - Aiming or laying means for vehicle-borne armament, e.g. on aircraft

Abstract

The invention relates to a tracking system (S) comprising at least one item of tracking equipment (3) and a detection device (4) which is configured to detect the position and the angular orientation of the item of tracking equipment (3), the detection device (4) comprising a receiver (1) which is configured to receive a projected predetermined standard image (IM1), the receiver (1) comprising an optical sensor (14), which is configured to capture a portion of the projection of the predetermined standard image (IM1) received on a receiving area (11), and a computing device (19), which is configured to determine a deformation of at least one predetermined oriented pattern (M1-M15) of the predetermined standard image (IM1) so as to deduce a position vector (vecR) therefrom.

IPC Classes  ?

• G02B 27/00 - Optical systems or apparatus not provided for by any of the groups ,
• G06F 3/01 - Input arrangements or combined input and output arrangements for interaction between user and computer
• G06T 7/246 - Analysis of motion using feature-based methods, e.g. the tracking of corners or segments
• G06T 7/73 - Determining position or orientation of objects or cameras using feature-based methods
• G06T 19/00 - Manipulating 3D models or images for computer graphics

Abstract

The invention relates to an electric machine comprising a stator (4) and a rotor inserted into a central circular opening of the stator, the stator comprising a yoke (4b) and a plurality of teeth (5) extending into the opening in a radial direction and a plurality of identical power assemblies (6). Each power assembly (6) comprises a coil (7) wound around one of the teeth and a power module (8) inserted into the stator and connected to the coil (7). Each power module (8) is arranged on the periphery of the stator (4) opposite the coil (7). Each power assembly (6) further comprises a coil holder (60). The power module (8) is separated from the coil (7) by the coil holder (60).

IPC Classes  ?

• H02K 1/14 - Stator cores with salient poles
• H02K 11/33 - Drive circuits, e.g. power electronics
• H02K 9/22 - Arrangements for cooling or ventilating by solid heat conducting material embedded in, or arranged in contact with, the stator or rotor, e.g. heat bridges
• B64D 27/24 - Aircraft characterised by the type or position of power plants using steam or spring force

Abstract

The invention relates to an optical system (3) comprising, aligned in this order on the same optical axis (X-X'), a first lens (7) defining a first dioptre (11) and a second dioptre (12), a free space (8), and a second lens (9) defining a third dioptre (13) and a fourth dioptre (14), wherein the first dioptre (11) comprises an outer refraction region (15) and a central reflection region (17), and wherein the fourth dioptre (14) comprises an outer reflection portion (21) and a central refraction portion (23), such that electromagnetic radiation (R) entering into the optical system (3) via the outer region (15) of the first dioptre (11) exits therefrom via the central portion (23) of the fourth dioptre (14) after being reflected by the outer portion (21) of the fourth dioptre (14) and then by the central region (17) of the first dioptre (11).

IPC Classes  ?

• G02B 17/08 - Catadioptric systems

Abstract

The invention relates to a method for measuring the wear of the discs of an aircraft brake provided with a wear indicator (6) movably mounted on a fixed part of the aircraft brake and moving as the discs wear, the method comprising the steps of: - acquiring an image of a portion of the discs of the aircraft brake, - identifying the wear indicator (6) in the acquired image, - identifying at least three reference points (A1, B1, C2) on the wear indicator (6), and - determining at least one measurement of the wear of the discs of the aircraft brake by determining at least one dimension (L, W) associated with the wear indicator (6) from the three identified reference points (A1, B1, C2).

IPC Classes  ?

• B60T 17/22 - Devices for monitoring or checking brake systemsSignal devices
• B60T 17/00 - Component parts, details, or accessories of brake systems not covered by groups , or , or presenting other characteristic features

Abstract

The invention relates to a system for supplying power to an electric motor for driving a rotary mechanical machine with high torque variation over a revolution, wherein the system comprises a power supply device supplying an alternating current, the intensity (Iv) of which varies in proportion to the torque exerted by the motor. The system comprises a device for regulating the power supplied to the motor, wherein the regulating device supplies an alternating voltage (Uv) controlled by the current (Iv) and in phase opposition to the current (Iv).

IPC Classes  ?

• H02P 11/00 - Arrangements for controlling dynamo-electric converters
• H02P 23/04 - Arrangements or methods for the control of AC motors characterised by a control method other than vector control specially adapted for damping motor oscillations, e.g. for reducing hunting
• H02P 23/26 - Power factor control [PFC]
• H02P 25/03 - Synchronous motors with brushless excitation
• H02P 29/50 - Reduction of harmonics
• H02P 6/10 - Arrangements for controlling torque ripple, e.g. providing reduced torque ripple
• H02P 21/05 - Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation specially adapted for damping motor oscillations, e.g. for reducing hunting

Abstract

One aspect of the invention aims to enable an electronic device (2) packaged in a container (4) to communicate without compromising the transmitted data. In particular, the invention relates to a communication system (3) comprising: an authorised transmitter (31); and a receiver (32) connected to the device (2), wherein the transmitter and the receiver are configured for contactless communication, and wherein the receiver authorises communication to and from the electronic device only when an identifier (61) is detected in the data (510) received by the transmitter. Thus, the electronic device can only be interrogated by an authorised transmitter. An unauthorised transmitter (one that does not know the key) is unlikely to establish communication with the electronic device.

IPC Classes  ?

• H04B 5/26 - Inductive coupling using coils
• G06F 21/35 - User authentication involving the use of external additional devices, e.g. dongles or smart cards communicating wirelessly
• H04B 5/79 - Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for data transfer in combination with power transfer
• H04W 12/00 - Security arrangementsAuthenticationProtecting privacy or anonymity
• H04W 12/069 - Authentication using certificates or pre-shared keys
• G06F 21/00 - Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
• H04L 9/40 - Network security protocols
• G06F 21/82 - Protecting input, output or interconnection devices

Abstract

The present invention relates to a commissioning device for commissioning an item of electronic equipment (15) supplied with power by an electrical power source (12), the commissioning device (1) comprising: - an item of electronic equipment configured to perform an electronic function; - an electrical power source configured to supply power to at least the item of electronic equipment; - a radio communication element (3) configured to receive a radio signal (Sradio); and - a switching element (5) configured to receive the radio signal and to commission the item of electronic equipment by supplying power to the item of electronic equipment from the electrical power source, so as to perform the associated electronic function.

IPC Classes  ?

• B64G 1/64 - Systems for coupling or separating cosmonautic vehicles or parts thereof, e.g. docking arrangements
• H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
• H02J 50/00 - Circuit arrangements or systems for wireless supply or distribution of electric power

Abstract

The invention relates to a quadrature phase interferometer comprising polarization-maintaining optical fibres, each fibre comprising a first axis and a second axis of different refractive indices, the interferometer (1) comprising: a starting optical fibre (9) optically connecting, via its first axis, a linearly polarized laser source (3) and a first coupler (5), a reference optical fibre (11) optically connecting, via its first axis, the first coupler (5) and a second coupler (7), a measuring optical fibre (15) optically connected to the second coupler (7), a fourth optical fibre (43) and a fifth optical fibre (45) exiting from the second coupler (7) and leading to a phase-shifting module (47), and four optical sensors (49) configured to perform a quadrature phase measurement of the light intensity received by the optical sensors (49).

IPC Classes  ?

• G01B 9/02055 - Reduction or prevention of errorsTestingCalibration
• G01B 9/02015 - Interferometers characterised by the beam path configuration

Abstract

According to one aspect, the invention relates to a method (400) for correcting residual optical defects of an image acquired by a camera with a particular focal length, the acquired image being corrected for defects of a sensor of the camera, wherein the residual optical defects relate to the particular focal length and are different from the defects of the sensor, the method being carried out on the basis of a first calibration table corresponding to an amplitude of the residual optical defects at the particular focal length.

IPC Classes  ?

• G06T 5/70 - DenoisingSmoothing
• H04N 17/00 - Diagnosis, testing or measuring for television systems or their details
• H04N 25/671 - Noise processing, e.g. detecting, correcting, reducing or removing noise applied to fixed-pattern noise, e.g. non-uniformity of response for non-uniformity detection or correction
• H04N 5/33 - Transforming infrared radiation
• H04N 23/81 - Camera processing pipelinesComponents thereof for suppressing or minimising disturbance in the image signal generation
• H04N 25/60 - Noise processing, e.g. detecting, correcting, reducing or removing noise

Abstract

The invention relates to a method for assigning a set of services to a set of data links between a mobile device and at least one station, comprising - a step (S1) of selecting a sub-set of data links comprising a sub-step (S11) of determining performance parameters for each data link, a sub-step (S12) of converting these performance parameters into objective values, and a sub-step (S13) of selecting data links depending on the objective values; - a step (S2) of ordering the data links depending on at least one ordering criterion; - an assigning step (S3) comprising assigning the services depending on a order of the services and on the order of the data links.

IPC Classes  ?

• H04W 28/02 - Traffic management, e.g. flow control or congestion control
• H04W 28/082 - Load balancing or load distribution among bearers or channels
• H04W 28/08 - Load balancing or load distribution
• H04W 40/12 - Communication route or path selection, e.g. power-based or shortest path routing based on transmission quality or channel quality

Abstract

The invention relates to an aerial drone (1) including a fixed structure (2), a motor assembly (3) for propelling and orienting the drone, an optronic distance measurement device (6), and an electronic guidance unit (5) connected to the motor assembly (3) and to the optronic distance measurement device (6) in order to control the motor assembly (3) according to signals emitted by the optronic distance measurement device (6). The device (6) comprises an optical system (6.1) and an optronic sensor (6.2) which have a fixed orientation with respect to the fixed structure (2). The electronic guidance unit (5) is arranged to control the motor assembly (3) in order for the drone to move above an exploration area, scanning the exploration area by the optronic sensor (6.2) until detecting electromagnetic radiation emitted by a target, and then to guide the drone until the target by distance measurement.

IPC Classes  ?

• G05D 1/247 - Arrangements for determining position or orientation using signals provided by artificial sources external to the vehicle, e.g. navigation beacons
• G05D 1/689 - Pointing payloads towards fixed or moving targets
• G05D 105/28 - Specific applications of the controlled vehicles for transportation of freight
• G05D 109/25 - Rotorcrafts
• G05D 111/10 - Optical signals
• G05D 111/50 - Internal signals, i.e. from sensors located in the vehicle, e.g. from compasses or angular sensors
• G01S 17/00 - Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems

Abstract

The invention relates to a control system (100) for an aircraft, comprising: - a moveable flight control (101); - an active return system (106) for returning the flight control (101), comprising: an electric motor (108) for driving the flight control (101), a measurement device (112) designed to deliver a measurement () representative of a position () of the flight control (101), and a device (114) for controlling the electric motor (108) designed to deliver a torque setpoint to the electric motor (108) based on the measurement () and on a position setpoint (*); and - a device (118) for detecting whether the flight control (101) is being gripped. The detecting device (118) comprises a state observer (120) designed to deliver, based on the measurement (), an estimate () of an external force () applied to the flight control (101), the state observer (120) using a model of the flight control (101) and of the active return system (106), and the detecting device (118) is designed to detect whether the flight control (101) is being gripped based on the estimate () of the external force ().

IPC Classes  ?

• B64C 13/04 - Initiating means actuated personally
• B64C 13/50 - Transmitting means with power amplification using electrical energy

Abstract

The invention relates to an optronic angle error measurement device (101) comprising an optical system (102), an optronic sensor (104), and an electronic weighing circuit (105) connected to the optronic sensor. The optronic sensor comprises at least four adjacent photodiodes which supply a signal proportional to a quantity of light energy of an incident light beam having at least one wavelength of interest at which the photodiodes are sensitive, and which have fields combining to form the field of the optronic sensor. The optical system comprises a helical phase optical element (106). Also disclosed are a vehicle and a pointing device provided with such a device.

IPC Classes  ?

• F41G 7/22 - Homing guidance systems
• G01S 3/784 - Systems for determining direction or deviation from predetermined direction using amplitude comparison of signals derived from static detectors or detector systems using a mosaic of detectors
• G01S 3/786 - Systems for determining direction or deviation from predetermined direction using adjustment of orientation of directivity characteristics of a detector or detector system to give a desired condition of signal derived from that detector or detector system the desired condition being maintained automatically
• G01S 7/4863 - Detector arrays, e.g. charge-transfer gates

Abstract

The invention relates to a method (PREF) for referencing at least one artificial satellite (SAT) in a star catalogue (CTG) comprising the step of positioning at least one star projected onto a celestial sphere (SC). It comprises: - a step (E10) of obtaining the co-ordinates (Oqd, Â) of an observation location of the at least one artificial satellite (SAT) and the orbital parameters (TLE) of the at least one artificial satellite (SAT); - a step (E50) of projecting the satellite (SAT) onto the celestial sphere (SC) in a viewing direction determined from the orbital parameters (TLE) and the observation location; - a step (E80) of recording, in the catalogue (CTG), the co-ordinates of the satellite (SAT) projected onto the celestial sphere (CS), wherein the co-ordinates of the stars and the at least one artificial satellite (SAT) are expressed in the same geocentric reference frame, referred to as the star catalogue reference frame.

IPC Classes  ?

• G01S 19/21 - Interference related issues
• G01C 21/02 - NavigationNavigational instruments not provided for in groups by astronomical means

Abstract

The invention relates to a method for acquiring and processing images of a scene (4) provided by a detection system (2) comprising a sensor (6), the method comprising: a step of modifying an adjustment parameter of the sensor (6), a step of modifying a reference offset table of the sensor (6), with the modification being applied to the images, and a step of compensating for variations in the average intensity of the images caused by the modifications to the adjustment parameter of the sensor (6) and the reference offset table of the sensor (6), with the compensation being applied to the images.

IPC Classes  ?

• G01J 5/70 - Passive compensation of pyrometer measurements, e.g. using ambient temperature sensing or sensing of temperature within housing
• G01J 5/80 - Calibration
• G01J 5/20 - Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors using resistors, thermistors or semiconductors sensitive to radiation, e.g. photoconductive devices
• H04N 5/33 - Transforming infrared radiation
• H04N 25/671 - Noise processing, e.g. detecting, correcting, reducing or removing noise applied to fixed-pattern noise, e.g. non-uniformity of response for non-uniformity detection or correction

Abstract

The invention relates to a method for manufacturing a stack (1) of printed circuit boards, the method comprising at least: - a first step, in which at least three pads (101) are positioned on a first printed circuit board (10), in particular a double-sided printed circuit board; - a second step, in which a layer of adhesive (4) is deposited on the pads (101); - a third step, in which a core (2) is positioned on the pads (101); and - a fourth step, in which the layer of adhesive (4) is polymerized.

IPC Classes  ?

• H05K 1/16 - Printed circuits incorporating printed electric components, e.g. printed resistor, capacitor, inductor
• H05K 1/18 - Printed circuits structurally associated with non-printed electric components
• H05K 3/30 - Assembling printed circuits with electric components, e.g. with resistor
• H05K 3/46 - Manufacturing multi-layer circuits

Abstract

The invention relates to an image detection device for viewing a laser spot in a colour image. The device comprises an array of photosites and an array of microfilters, comprising four distinct types of microfilters, three first types of which exhibit transmission in two spectral ranges, and a fourth type of which exhibits transmission in only one of the two spectral ranges. The device further comprises a band-stop optical filter in a sub-range of a second spectral range. The device is configured to construct (301) an image for each type of microfilter; correct (302) each image resulting from a first type of microfilter by subtracting values weighted by a coefficient from pixels in the image resulting from the fourth type of microfilter; obtain (303) a colour image from the corrected images, detect (304) a laser spot in the image resulting from the fourth type of microfilter and insert (305) the laser spot into the colour image.

IPC Classes  ?

• G01J 3/28 - Investigating the spectrum
• G01J 3/12 - Generating the spectrumMonochromators
• H04N 23/11 - Cameras or camera modules comprising electronic image sensorsControl thereof for generating image signals from different wavelengths for generating image signals from visible and infrared light wavelengths
• H04N 25/131 - Arrangement of colour filter arrays [CFA]Filter mosaics characterised by the spectral characteristics of the filter elements including elements passing infrared wavelengths
• H04N 25/13 - Arrangement of colour filter arrays [CFA]Filter mosaics characterised by the spectral characteristics of the filter elements
• H04N 23/12 - Cameras or camera modules comprising electronic image sensorsControl thereof for generating image signals from different wavelengths with one sensor only
• G06T 5/00 - Image enhancement or restoration

Abstract

The invention relates to a detection method, using an optronic device comprising a plurality of imagers (4) operating in separate frequency bands, comprising the steps of: - acquiring at least two primary images (Ip) of a single scene produced by at least two different imagers; - registering the at least two primary images, in order to obtain, for each primary image, a secondary image; - producing a multispectral image (Im) from the secondary images, and detecting a target (8) in the multispectral image; and - producing a detection image (Id) in which a visual indicator is displayed.

IPC Classes  ?

• G06V 10/143 - Sensing or illuminating at different wavelengths
• G06V 10/20 - Image preprocessing
• G06V 20/50 - Context or environment of the image
• G06V 10/10 - Image acquisition
• G06T 7/30 - Determination of transform parameters for the alignment of images, i.e. image registration

Abstract

One aspect of the invention relates to a method for establishing a secure end-to-end connection between an on-board environment of an aircraft and a ground environment of a ground assistance centre. The secure connection is dedicated exclusively to managing an emergency situation. The method comprises in particular exchanging a plurality of ACARS, aircraft communications addressing and reporting system, messages and implementing an MPLS, multiprotocol label switching, cloud. Finally, the method comprises establishing a secure connection between the on-board environment and the ground environment via hybrid encryption using a public key accessible to the ground environment and the on-board environment and using a private key accessible exclusively to the ground environment.

IPC Classes  ?

• H04B 7/185 - Space-based or airborne stations
• H04L 9/40 - Network security protocols

Abstract

The invention relates, according to a first aspect, to a detection system (1) for detecting angular sectors, comprising a non-magnetic disk or disk portion (5), the disk (5) comprising at least one main track (2) arranged on a part of a circumference of the disk (5), the detection system (1) comprising a first Hall sensor (6) arranged facing the main track (2) in a direction orthogonal to a plane in which the disk (5) is contained, each main track (2) consisting of multiple permanent magnets (4) of north or south polarity, each main track (2) comprising at least one magnet of north polarity and at least one magnet of south polarity, so as to define angular sectors (7) along the part of the circumference of the disk (5) in accordance with the polarity of the permanent magnets (4).

IPC Classes  ?

• G01C 1/00 - Measuring angles
• G01D 5/14 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
• G01R 33/00 - Arrangements or instruments for measuring magnetic variables
• G01D 3/08 - Measuring arrangements with provision for the special purposes referred to in the subgroups of this group with provision for safeguarding the apparatus, e.g. against abnormal operation, against breakdown
• G01D 5/245 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trainsMechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means generating pulses or pulse trains using a variable number of pulses in a train
• G01R 33/07 - Hall-effect devices

Abstract

The invention relates to a projector (30) for an aircraft, comprising at least one collimator comprising a light entry surface (6), a light exit surface (8) and an intermediate collimation surface (10) configured to collimate the light coming from the entry surface (6) and to direct it towards the exit surface (8), the light exit surface (8) comprising at least one rectilinear striation (20) in the form of a prism comprising a reflective surface (22) configured to reflect the light collimated by the intermediate collimation surface (10), and a refractive surface (24) configured to refract the light reflected by the reflective surface (22).

IPC Classes  ?

• G02B 19/00 - Condensers
• G02B 17/00 - Systems with reflecting surfaces, with or without refracting elements

Abstract

The invention relates to a human-machine interface configured to detect an unintentional command, the interface comprising a control stick (5) that comprises a throttle lever (7) designed to be operated by a hand of a pilot, and a position sensor (9) for detecting the position of the control stick configured to communicate the position of the control stick to an onboard computer (11) of the aircraft (1), the human-machine interface comprising a presence detection system (13) for detecting the presence of the hand of a pilot on the throttle lever, and a controller (15) configured to communicate with the onboard computer when the presence detection system does not detect the hand of a pilot, the human-machine interface comprising a controllable friction module (17), the controller being configured to supply the controllable friction module with power such that the controllable friction module locks the position of the control stick when the presence detection system does not detect the hand of a pilot, and such that the controllable friction module unlocks the position of the control stick when a pilot's hand is detected by the presence detection system.

IPC Classes  ?

• B64C 13/04 - Initiating means actuated personally
• B64D 31/04 - Initiating means actuated personally
• G05G 9/047 - Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously the controlling member being movable by hand about orthogonal axes, e.g. joysticks
• G05G 5/00 - Means for preventing, limiting or returning the movements of parts of a control mechanism, e.g. locking controlling member

Abstract

The invention relates to a casing (2) which is configured to house electronic devices (9) and which comprises an upper wall (3) and a lower wall (4) comprising discharge openings (30) and intake openings (40), respectively, for an air flow in the casing (2), the casing (2) comprising an internal protective duct (10) internally delimiting an exposed volume and externally delimiting a protected volume, in which the electronic devices (9) lie and into which at least one of the intake openings (40) leads, the internal protective duct (10) comprising: - an upper end, into which the discharge openings (30) lead, and a lower end (8), leading into a receptacle, so as to confine a liquid that has seeped through the discharge openings (30) in the exposed volume; and - ventilation openings (13) configured to allow the air flow to circulate from the protected volume to the exposed volume.

IPC Classes  ?

• H05K 7/20 - Modifications to facilitate cooling, ventilating, or heating

Abstract

An actuator (20) arranged to be connected to a mechanical chain (13) of a mechanical system (10) for controlling the flight of a vehicle, comprising a first motor (22a), a first output arrangement (23a) driven in rotation about an axis of rotation (X1-X1) by the first motor (22a) and forming a first mechanical pathway, a second motor (22b), a second output arrangement (23b) driven in rotation about the axis of rotation (X1-X1) by the second motor (22b) and forming a second mechanical pathway, an output member (24) configured to be connected to the mechanical chain (13), a first and a second coupling/decoupling device (25a, 25b) connecting, in terms of rotation about the axis of rotation (X1-X1), respectively the first output arrangement (23a) and the second output arrangement (23b) with the output member (24) in a coupled position. The actuator (20) comprising an electronic control unit (40) configured to detect a blockage of one of the mechanical pathways of the actuator (20) and to control the torques of the motors (22a, 22b) separately.

IPC Classes  ?

• B64C 13/34 - Transmitting means without power amplification or where power amplification is irrelevant mechanical using toothed gearing
• B64C 13/50 - Transmitting means with power amplification using electrical energy
• B64C 27/56 - Mechanisms for controlling blade adjustment or movement relative to rotor head, e.g. lag-lead movement characterised by the control initiating means, e.g. manually actuated
• B64C 27/68 - Transmitting means, e.g. interrelated with initiating means or means acting on blades using electrical energy, e.g. having electrical power amplification

Abstract

The invention relates to a method for protecting an electronic housing, comprising the steps of: - injecting at least one liquid or semi-liquid filling product into the housing (1) via at least one first injection opening provided in one of the walls of the housing; - stopping injection of the product when the product is present in at least one portion of at least one first opening and/or of at least one second opening provided in one of the walls of the housing; and - curing the product. The invention also relates to a corresponding housing, measurement system and aircraft.

IPC Classes  ?

• H05K 5/06 - Hermetically-sealed casings
• B60C 23/04 - Signalling devices actuated by tyre pressure mounted on the wheel or tyre

Abstract

The invention relates to a furniture installation (100) which comprises: - a seat (102) comprising one or more movable elements (202, 204, 206, 208), wherein the seat can adopt in particular a safety position; and - a human-machine interface (110) for allowing a passenger seated in the seat (102) to move the seat (102). The furniture installation (100) further comprises a management device (114) designed to: - receive measurements relating to the state of the aircraft; - on the basis of the received measurements, determine a current flight phase of the aircraft, from a plurality of predefined flight phases; and - according to the flight phase determined, either block any movement of the seat out of the safety position by means of the human-machine interface, or allow the seat to be moved out of the safety position by means of the human-machine interface.

IPC Classes  ?

• B64D 11/06 - Arrangements or adaptations of seats
• B60N 2/02 - Seats specially adapted for vehiclesArrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
• B64D 11/00 - Passenger or crew accommodationFlight-deck installations not otherwise provided for

Abstract

A first aspect of the invention relates to a heat exchanger (30) for a Joule-Thomson cooler (10), comprising a main body (310) and at least one gas pipe (32) made from a material composed of ceramic and metal, surrounding the main body (310). A second aspect of the invention relates to a Joule-Thomson cooler (10), comprising: - a heat exchanger according to the first aspect, and - a casing (20), in which the heat exchanger is housed. A third aspect of the invention relates to a method for manufacturing a heat exchanger according to the first aspect, comprising at least one step of manufacturing the gas pipe comprising at least one step of forming the gas pipe by extrusion and a step of coiling the gas pipe.

IPC Classes  ?

• F25B 9/02 - Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point using Joule-Thompson effectCompression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point using vortex effect

Abstract

The invention relates to a method for controlling an autonomous vehicle (1) comprising at least an electronic control unit (2) and a first optronic device (5) connected to the electronic control unit in order to control the vehicle according to the position of a target (T) in first images provided by the optronic device. The method comprises the steps of: capturing at least one second image (Ib) of the target by means of a second optronic device (15) which is separated from the vehicle and which has a higher capture performance than a capture performance of the first optronic device; from the at least one second image, forming reference images (Ir) of the target at different distances and loading the reference images into the memory of the electronic control unit; and having the electronic control unit search for the reference images in the first images in order to steer the vehicle.

IPC Classes  ?

• G05D 1/222 - Remote-control arrangements operated by humans
• B64C 39/02 - Aircraft not otherwise provided for characterised by special use
• G06T 7/70 - Determining position or orientation of objects or cameras
• G06V 20/10 - Terrestrial scenes
• F41G 3/14 - Indirect aiming means
• G05D 1/689 - Pointing payloads towards fixed or moving targets
• G05D 105/35 - Specific applications of the controlled vehicles for combat
• G05D 107/30 - Off-road
• G05D 109/25 - Rotorcrafts

Abstract

The invention relates to a fan module (3) comprising - a system (96) for the safe pitching of the blades (30), the blade pitch safety system (96) comprising: - at least one safety device (97) comprising a safety member that is translatably movable along the longitudinal axis (X) and movable between: a first position (P1) in which the body (54) of the actuator (52) is free to move between its feathered and pitched positions, and a second position (P2) in which the body (54) of the actuator (52) is brought into the feathered position and is free to move along a travel distance that is limited in relation to a travel distance defined between the feathered and pitched positions; - a drive device (98) for driving the safety member; and - a device (99) for controlling the drive device (98).

IPC Classes  ?

• B64C 11/06 - Blade mountings for variable-pitch blades
• B64C 11/38 - Blade pitch-changing mechanisms fluid, e.g. hydraulic
• B64C 11/44 - Blade pitch-changing mechanisms electric
• F02K 1/66 - Reversing fan flow using reversing fan blades
• F02K 3/06 - Plants including a gas turbine driving a compressor or a ducted fan in which part of the working fluid by-passes the turbine and combustion chamber the plant including ducted fans, i.e. fans with high volume, low-pressure outputs, for augmenting jet thrust, e.g. of double-flow type with front fan
• F04D 29/32 - Rotors specially adapted for elastic fluids for axial-flow pumps
• F02C 9/56 - Control of fuel supply conjointly with another control of the plant with power transmission control
• F04D 27/02 - Surge control

Abstract

The invention relates to a navigation device (3), configured to be securely mounted on an optical system for viewing and observing a scene (SC), the navigation device (3) comprising an inertial module (31), a viewing module (32), at least one database (33) storing a plurality of reference attitudes (Ari), each associated with a reference optical signature (Sri), a computer (34) configured to compare a current inertial attitude (Ac) with the reference attitudes (Ari) so as to determine the closest reference attitude (Arp) and deduce therefrom the associated reference optical signature (Srp), compare the current image (IMc) captured by the viewing module (32) with the associated reference optical signature (Srp) so as to determine an angular offset (Δ), and determine the navigation attitude (An) based on the closest reference attitude (Arp) and on the angular offset (Δ).

IPC Classes  ?

• G06T 7/73 - Determining position or orientation of objects or cameras using feature-based methods
• F41G 3/00 - Aiming or laying means
• G01C 11/06 - Interpretation of pictures by comparison of two or more pictures of the same area
• G01C 17/34 - Sun- or astro-compasses
• F41G 1/473 - Sighting devices for particular applications for lead-indicating or range-finding, e.g. for use with rifles or shotguns

Abstract

The invention relates to a method using predictive control employing a tube-based model in the presence of disturbances, the tube being defined by a set centred on successive nominal states. The method comprises: - obtaining an orthogonal projection of the set defining the tube, onto a space through which the environment extends; - obtaining a partition of the environment; - determining a path (CH) comprising segments (S2-4, S5-8) each determined on the basis of one or more segments of the partition; - defining corridors (Q2-4, Q5-8) around respective segments (S2-4, S5-8) of the path (CH); - verifying that the projection remains entirely in each corridor (Q2-4, Q5-8); - modifying the partition to remove any segment or segments where the projection departs from the corridor, to restart determining the path (CH); and - if the projection remains entirely in all the corridors (Q2-4, Q5-8), controlling the mobile system to successively pass through the corridors (Q2-4, Q5-8).

IPC Classes  ?

• G05D 1/246 - Arrangements for determining position or orientation using environment maps, e.g. simultaneous localisation and mapping [SLAM]
• G01C 21/00 - NavigationNavigational instruments not provided for in groups
• G05D 1/43 - Control of position or course in two dimensions
• G05D 1/644 - Optimisation of travel parameters, e.g. of energy consumption, journey time or distance

Abstract

The invention relates to a secure-use device (20) comprising a light source (22), an optical sensor (24), and an optical system (26) configured to direct light emitted by the light source (22) towards a target (28), the optical system (26) being further configured to direct light reflected by the target (28) toward the optical sensor (24), the device comprising a comparison module (30) for comparing an image of the target (28) formed on the optical sensor (24) with an image database stored in the comparison module (30), the secure-use device (20) further comprising a module (32) for starting the secure-use device (20) configured to unlock the secure-use device (20) when the image of the target (28) formed on the optical sensor (24) is in the database.

IPC Classes  ?

• G06F 21/32 - User authentication using biometric data, e.g. fingerprints, iris scans or voiceprints
• G06F 21/31 - User authentication
• G06V 40/19 - Sensors therefor

Abstract

One aspect of the invention relates to a method for the automated processing of one or more alerts in an aircraft, an alert being associated with an event concerning the state of the aircraft, which event can be associated with one or more alerts, the method being implemented by an automated processing system comprising one or more digitised control panels and a computing unit, the method comprising a step of preparing the processing of the alerts; a step of evaluating one or more procedures associated with each alert; a step of selecting an execution mode for the procedures to be implemented from a manual mode, in which the actions associated with each procedure are executed by the user themselves, and an automatic mode, in which the actions associated with each procedure are executed by the automated processing system; a step of executing the procedures in the ordered list of the procedures to be implemented, this execution being carried out in accordance with the ordering of the list when the automatic execution mode is selected by the user; and a step of displaying the actions implemented in the previous step, the achieved and/or expected changes associated with each of these actions, and the consistency of the achieved changes with the expected changes.

IPC Classes  ?

• G05B 23/02 - Electric testing or monitoring

Abstract

The invention relates to a power and data transmission device, comprising a first circuit (100), a second circuit (200) and a cable (300) connecting the first circuit and the second circuit and comprising a first pair (301) and a second pair (302) of electrical conductors for transmitting a data signal and a power signal, the data signal being transmitted in differential mode in a first direction on the first pair of electrical conductors and in a second direction on the second pair of electrical conductors; characterized in that the first circuit is designed to transmit, in differential mode, the power signal on a sinusoidal carrier using the common modes of the two pairs of conductors and the second circuit is designed to receive said power signal while maintaining, with respect to the cable, a real impedance equal to an iterative impedance of the cable.

IPC Classes  ?

• H04B 3/54 - Systems for transmission via power distribution lines

Abstract

The invention relates to an extender (20) for a cargo parachute (22), which comprises a strap (24), a first connecting member (26) for connecting the strap (24) to the cargo parachute, a second connecting member (28) for connecting the strap (24) to a bundle (4), and an elastic member (30) intended to be drawn tight when the strap (24) is under tension, the elastic member (30) comprising polyurethane with a hardness of between 70 and 90 Shore A.

IPC Classes  ?

• B64D 17/22 - Load suspension
• B64D 17/36 - Load suspension incorporating friction devices or frangible connections to reduce shock loading of canopy
• B64D 17/38 - Releasable fastening devices between parachute and load or pack
• B64D 17/40 - Packs
• D04C 1/12 - Cords, lines, or tows
• C08L 75/04 - Polyurethanes
• B66C 1/18 - Band-type slings
• B66C 1/16 - Slings with load-engaging platforms or frameworks
• B66F 19/00 - Hoisting, lifting, hauling, or pushing, not otherwise provided for

Abstract

1...N1...N1...N1...Nii,ji1...N1...NN.

IPC Classes  ?

• G01S 19/20 - Integrity monitoring, fault detection or fault isolation of space segment

Abstract

The invention relates to a device for removably attaching a piece of equipment (E), comprising a base (200) and a frame (100) to which the piece of equipment is rigidly connected; the frame (100) having a first side (101) and a second side (102), opposite each other with respect to a first axis (A1) of the frame (100), and a base plate (103) extending between the sides (101, 102) in parallel with the first axis (A1) in order to rest on an upper surface (203) of the base (200). The device comprises at least a first abutment (104) arranged on the frame (100) in order to be engaged under a hook (204) rigidly connected to the base (200), and a second abutment (106) arranged on the frame (100) in order to engage with a tie rod (206) connected to the base (200).

IPC Classes  ?

• H05K 5/02 - Casings, cabinets or drawers for electric apparatus Details
• H05K 7/14 - Mounting supporting structure in casing or on frame or rack

Abstract

The invention relates to electronic equipment comprising a supporting member (2) and at least one component (3), at least one thermoelectric module (7) being associated with the component, the module being shaped as a block comprising two main heat-exchange faces, the module being integrated at least partially into the supporting member such that a first one of its two main faces is in contact with at least one of the faces of the component, either directly or via at least one link (10) made of an at least thermally conductive material. The invention also relates to a corresponding electronic system.

IPC Classes  ?

• H05K 1/02 - Printed circuits Details
• H01L 23/38 - Cooling arrangements using the Peltier effect
• H10N 10/17 - Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects operating with only the Peltier or Seebeck effects characterised by the structure or configuration of the cell or thermocouple forming the device
• H10N 10/13 - Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects operating with only the Peltier or Seebeck effects characterised by the heat-exchanging means at the junction

Abstract

One aspect of the invention relates to a system for electronically actuating a load, comprising: - a control module; - a transistor configured to be actuated by the control module by means of an electrical command in order to modify a load level; - a monitoring module configured to determine a monitoring state depending on the load level, and to transmit the monitoring state to the control module; - a filtering module configured to apply a delay to an evaluation of the activation or deactivation state of the load by the monitoring module: - a relaxation module intended to protect the actuating system against an over-current by generating a plurality of relaxation oscillations at a terminal of the load, each relaxation oscillation being produced by: o activating the transistor in a linear operation mode for an activation time determined by the relaxation module; and o opening the transistor for a deactivation time determined by the relaxation module, successively to the activation time.

IPC Classes  ?

• H02H 3/02 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection Details
• H02H 3/087 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection responsive to excess current for DC applications
• H02H 7/22 - Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for distribution gear, e.g. bus-bar systemsEmergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for switching devices

Abstract

This method for monitoring the wear of an element of a mechanical chain rotated by a motor comprises the following steps: Recovering (step 9) the torque values applied to the element; Calculating (step 11) the shear stresses applied to the element; Identifying and counting (step 13) stress cycles; Determining (step 15), for each identified stress cycle, a damage value; Summing (step 17) all the damage values determined for each identified stress cycle into a total damage value; and Comparing (step 19) the total damage value with a threshold damage value for which the element presents a risk of breakage.

IPC Classes  ?

• G01M 13/02 - GearingsTransmission mechanisms

Abstract

The invention relates to a method (100) for automatically monitoring a scene, comprising the steps of: a) acquiring a plurality of images by a sensor configured to scan said scene, b) constructing a panoramic strip (108) of the scene from said images, c) determining a monitoring trajectory from a plurality of waypoints in said scene, and d) repeating a step of following the monitoring trajectory by said sensor, and at each waypoint passed, acquiring at least one current image (110) and extracting information from said current image.

IPC Classes  ?

• G06V 10/10 - Image acquisition
• G06V 10/24 - Aligning, centring, orientation detection or correction of the image
• G06V 20/52 - Surveillance or monitoring of activities, e.g. for recognising suspicious objects

Abstract

The invention relates to a method for processing an infrared image (16) captured by an infrared camera, the method comprising the following steps: - a step of duplicating (18) the infrared image (16) to form a first image (20) and a second image (22); - a step of applying a local processing operation (24) to the first image (20); - a step of applying a global processing operation (26) to the second image (22); - a step of colorizing (28) at least one region of the second image (22), by way of a lookup table correlating grayscale levels and a colour computer coding format; and - a step of fusing (36) the first image (20) with the second image (22) to form a final image (38).

IPC Classes  ?

• G06T 5/40 - Image enhancement or restoration using histogram techniques
• G06T 5/90 - Dynamic range modification of images or parts thereof
• G06T 11/00 - 2D [Two Dimensional] image generation

Abstract

One aspect of the invention relates to a computer-implemented method for processing an infrared image. The method according to the invention comprises a first step of obtaining a histogram of the infrared image. From the obtained histogram, a statistical analysis of the histogram is performed. Said statistical analysis makes it in particular possible to obtain two values characterizing the infrared image. From these three values, it is thus possible to categorize the infrared image and to determine how the infrared image is to be processed.

IPC Classes  ?

• G06T 5/00 - Image enhancement or restoration
• G06T 5/40 - Image enhancement or restoration using histogram techniques

Abstract

The invention relates to a mechanical resonator (1) that comprises at least four masses (2a, 2b, 2c, 2d), control means that comprise means for measuring the relative displacement between each pair of masses and means for applying inter-mass forces for each pair of masses; and a module for regulating vibrations. The resonator (1) has cubic symmetry and the masses (2a, 2b, 2c, 2d) are interlocked with one another. The masses each have a ternary axis of symmetry oriented along a ternary axis of symmetry of a cube. The masses are interconnected by first springs (3) and/or are connected to an outer support of the resonator (1) by second springs (11).

IPC Classes  ?

• G01C 19/56 - Turn-sensitive devices using vibrating masses, e.g. vibratory angular rate sensors based on Coriolis forces
• G01C 19/5783 - Mountings or housings not specific to any of the devices covered by groups

Abstract

The invention relates to a method for determining an emergency landing plan for an aerial drone, comprising the steps of: applying (2) a main neural network to map data so as to determine at least one candidate area on an emergency landing runway, determining (3) an emergency landing runway such as the rectangle enclosed in a candidate area having the largest area, polygonising (4) each candidate area and the intersecting or adjacent areas, determining at least one complementary item of information relating to a candidate area and storing same with the formatted data, applying (5) predefined rules by means of an inference engine to the formatted data and complementary data for each candidate area, and identifying a valid candidate runway if all the rules are verified.

IPC Classes  ?

• G06V 20/13 - Satellite images
• G06V 20/17 - Terrestrial scenes taken from planes or by drones
• G06V 10/82 - Arrangements for image or video recognition or understanding using pattern recognition or machine learning using neural networks
• G06V 20/70 - Labelling scene content, e.g. deriving syntactic or semantic representations
• G06N 3/08 - Learning methods
• G06N 3/04 - Architecture, e.g. interconnection topology
• G06N 3/09 - Supervised learning
• B64D 45/04 - Landing aidsSafety measures to prevent collision with earth's surface
• G06N 5/04 - Inference or reasoning models

Abstract

The present disclosure relates to a cooling device comprising a main part, a Stirling cooler arranged inside the main part, and a duct suitable for conducting a heat transfer fluid of the Stirling cooler, the cooling device being characterized in that the duct extends at least partly outside the main part.

IPC Classes  ?

• F25B 9/14 - Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the cycle used, e.g. Stirling cycle

Abstract

The architected material is formed of a spatial repetition of an elementary three-dimensional module (5), which has eight vertices (9) located at the corners of a rectangular parallelepiped (10) and a node (11) located at the centre of the rectangular parallelepiped (10), each vertex (9) being connected to the node (11) by a lobe (13). Four lobes (13) are inscribed in a first rectangle R1 of plane P1 and the four other lobes (13) are inscribed in a second rectangle R2 of plane P2. The eight lobes (13) are each in the form of two arcs (14a, 14b) which meet at their ends, the two arcs (14a, 14b) of one and the same lobe (13) being the same length and having opposite curvatures, and the two arcs (14a, 14b) of the four lobes (13) extend in the plane P1 while the two arcs (14a, 14b) of the four other lobes (13) extend in the plane P2.

IPC Classes  ?

• F41H 5/00 - ArmourArmour platesShields

Abstract

The invention relates to a method for backing up flight data and a method for generating a module for detecting an abnormal event used to trigger the backup. The method for generating a module (MDEA) for detecting an abnormal event during a flight comprises the steps of: - obtaining (E10) data for healthy flights; associating (E30), for subsets (EIi) of indicators of reference events occurring during healthy flights, thresholds (THi) for determining partial opinions on the reference event on the basis of values of these indicators; configuring the module with the thresholds (THi) and with a decision model (LD) for determining a definitive opinion on an event of interest on the basis of partial opinions determined for this event of interest; the module being configured to generate a distress signal depending on the definitive opinion determined for an event occurring during a flight.

IPC Classes  ?

• B64D 45/00 - Aircraft indicators or protectors not otherwise provided for
• G05D 1/00 - Control of position, course, altitude or attitude of land, water, air or space vehicles, e.g. using automatic pilots
• G07C 5/00 - Registering or indicating the working of vehicles
• G07C 5/08 - Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle, or waiting time
• G05B 23/02 - Electric testing or monitoring

Abstract

The invention relates to a method implemented by a computing unit, which comprises: obtaining an image, each pixel of the image being associated with: a label indicating whether the pixel is a source pixel, the sources comprising local pixel intensity extrema of a first type; an indicator of a source associated with the pixel; an intensity of the pixel; a pixel intensity extremum of a second type on a path between the source associated with the pixel and the pixel, the second type of pixel intensity extremum being opposite to the first type of pixel intensity extremum; and until a stop criterion is verified, at least one iteration of a path of successive pixels of the image.

IPC Classes  ?

• G06T 7/11 - Region-based segmentation
• G06T 7/12 - Edge-based segmentation
• G06T 7/155 - SegmentationEdge detection involving morphological operators

Abstract

The invention relates to a power-electronic module (1) comprising: - a substrate (10); - a first power-electronic component (11a) arranged on a first face (10a) of the substrate (10); - a first cover (15a) which defines, together with the substrate, a first cavity (17a) in which the first power-electronic component (11a) is housed; - a second power-electronic component (11b) arranged on a second face (10b) of the substrate (10); and - a second cover (15b) which defines, together with the substrate, a second cavity (17b) in which the second power-electronic component (11b) is housed; - a first ring seal (16a) which seals the first cavity (17a); - a second ring seal (16b) which seals the second cavity (17b); wherein the first and second ring seals (16a, 16b) are formed from a sintered material and wherein the first and second cavities (17a, 17b) hold a gas or a mixture of gases.

IPC Classes  ?

• H01L 23/10 - ContainersSeals characterised by the material or arrangement of seals between parts, e.g. between cap and base of the container or between leads and walls of the container
• H01L 23/20 - Fillings characterised by the material, its physical or chemical properties, or its arrangement within the complete device gaseous at the normal operating temperature of the device
• H01L 25/07 - Assemblies consisting of a plurality of individual semiconductor or other solid-state devices all the devices being of a type provided for in a single subclass of subclasses , , , , or , e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in subclass
• H01L 23/492 - Bases or plates
• H01L 23/36 - Selection of materials, or shaping, to facilitate cooling or heating, e.g. heat sinks
• H01L 23/373 - Cooling facilitated by selection of materials for the device
• H01L 23/552 - Protection against radiation, e.g. light
• H01L 23/60 - Protection against electrostatic charges or discharges, e.g. Faraday shields
• H01L 25/18 - Assemblies consisting of a plurality of individual semiconductor or other solid-state devices the devices being of types provided for in two or more different main groups of the same subclass of , , , , or
• H02M 7/00 - Conversion of AC power input into DC power outputConversion of DC power input into AC power output

Abstract

The invention relates to a navigation device (1), comprising an inertial measurement unit (100) and an electronic navigation computation unit (200) interconnected by a data link (300), the inertial measurement unit (100) comprising inertial sensors (110, 120) providing first signals containing first data representing a speed variation and second data representing an angle variation, and the electronic navigation computation unit (200) being arranged to compute a navigation from signals provided by the inertial measurement unit (100), characterised in that the inertial measurement unit (100) includes an electronic processing circuit (130) connected to the inertial sensors (110, 120) and arranged to perform at least one first integration, as a function of time, of the first data and the second data over an integration time, which starts at a single integration start time and is measured, in order to produce first processed data and second processed data contained in second signals with time information representing the integration time, and in that the electronic navigation computation unit (200) is arranged to extract, from the second signals, the processed data and the time information and utilise them to compute the navigation, taking into account the integration time separating two consecutive extractions.

IPC Classes  ?

• G01C 21/16 - NavigationNavigational instruments not provided for in groups by using measurement of speed or acceleration executed aboard the object being navigatedDead reckoning by integrating acceleration or speed, i.e. inertial navigation

Abstract

The invention relates to a navigation device (1), comprising an inertial measurement unit (100) and an electronic navigation computation unit (200) connected to each other by a data link (300), the inertial measurement unit (100) comprising inertial sensors (110, 120) for producing location signals and the electronic navigation computation unit (200) being arranged to compute a navigation from the location signals, characterised in that the inertial measurement unit (100) includes an electronic processing circuit (130) connected to the inertial sensors (110, 120) and provided with a memory containing an error model of the inertial measurement unit; in that the electronic processing circuit is arranged to transmit to the electronic navigation unit, at a first rate, the location signals as well as, at a second rate, correction signals comprising first correction data that are representative of an impact of the errors of the sensors on the location signals over a given period and which are determined by the electronic processing circuit from the error model, and second correction data that are representative of an effect of the noises and random errors of the inertial measurement unit over the given period; and in that the electronic navigation computation unit implements a hybridised navigation algorithm arranged to provide a hybridised location which is based on inertial location data extracted from the location signals and the external location data and which is readjusted using the correction data.

IPC Classes  ?

• G01C 21/16 - NavigationNavigational instruments not provided for in groups by using measurement of speed or acceleration executed aboard the object being navigatedDead reckoning by integrating acceleration or speed, i.e. inertial navigation

Abstract

The invention relates to a current sensor with a flux gate comprising a magnetic core (13), a measurement winding (14), an excitation circuit (23) arranged to generate a digital excitation signal (Se), an acquisition circuit (17) arranged to acquire an analogue measurement voltage (Ve) across the terminals of the measurement winding (14) and to produce a digital measurement signal (Sm), a demagnetizing servo circuit (32) arranged to produce, from the digital measurement signal, a digital demagnetization signal (Sdm) intended to compensate for a magnetic flux produced by the current to be measured, a summer (36) arranged to sum the digital excitation signal and the digital demagnetization signal in such a way as to obtain a digital injection signal (Si), and an injection circuit (37) arranged to produce an analogue excitation current from the digital injection signal and to inject the analogue excitation current into the measurement winding.

IPC Classes  ?

• G01R 15/18 - Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers

Abstract

Autonomous land vehicle (1), comprising a supporting structure (2) resting on the ground via ground-contact means (3, 4), at least one electric steering actuator (6) for steering the vehicle (1), at least one electric powertrain (5) for moving the vehicle (1), at least one device (11) for detecting an environment in front of the vehicle (1), with reference to a direction of travel of the vehicle, an electronic control system (7) controlling the steering actuator (6) and the powertrain (5), and a battery (12) for powering the vehicle (1), the electronic control system (7) comprising a navigation unit designed for determining a path of the vehicle (1) to an arrival point. The electronic control system includes a real-time controller implementing predictive control.

IPC Classes  ?

• B60L 58/12 - Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
• G05D 1/00 - Control of position, course, altitude or attitude of land, water, air or space vehicles, e.g. using automatic pilots

Abstract

The invention relates to a 360° surveillance device comprising a 360° observation device (70) mounted on a support system arranged on a carrier vehicle (60) and comprising a digital image processing device (71) configured to construct 360° images from a plurality of images that are taken by the observation device and are linked to one another by the image processing device, wherein the support system is a support system for compensating for the movements of the vehicle with respect to heading, pitch and roll and comprises a manipulator robot (1) provided with three arms (10, 20, 30), each of the arms being provided with a proximal end comprising a motorised rotary connection (11, 21, 31) arranged on a common axis (51) of a support (50), perpendicular to a longitudinal plane of the carrier vehicle and rigidly attached to the carrier vehicle, of a first half-arm (12, 22, 32) and of a second half-arm (14, 24, 34) connected by a centre joint (13, 23, 33) and provided with a distal end provided with a terminal joint (15, 25, 35) for connecting the arms to a platform (40) for the attachment of the observation device (70), motors for moving the arms being positioned on a base of the support (50) of the manipulator robot and operating the rotary connections (11, 21, 31) of the arms on the support.

IPC Classes  ?

• B25J 9/00 - Programme-controlled manipulators
• H04N 23/698 - Control of cameras or camera modules for achieving an enlarged field of view, e.g. panoramic image capture
• B25J 19/02 - Sensing devices
• B64D 47/08 - Arrangements of cameras
• G03B 37/02 - Panoramic or wide-screen photographyPhotographing extended surfaces, e.g. for surveyingPhotographing internal surfaces, e.g. of pipe with scanning movement of lens or camera
• B63B 49/00 - Arrangements of nautical instruments or navigational aids
• G03B 17/56 - Accessories
• F16M 13/02 - Other supports for positioning apparatus or articlesMeans for steadying hand-held apparatus or articles for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle
• B64U 101/30 - UAVs specially adapted for particular uses or applications for imaging, photography or videography

Abstract

The invention relates to a human-machine interface (1), in particular for a vehicle or for a device, comprising at least one gripping element equipped with at least one signal-generating means, and a controller and a base for fastening and mobilizing the gripping element and allowing the passage of data connections, the gripping element (2) incorporating at least two data concentrators each connected, at input, in parallel to at least one signal-generating means and connected, at output, to the controller (5) via the base by way of at least one data bus (8a, 8b).

IPC Classes  ?

• G06F 3/038 - Control and interface arrangements therefor, e.g. drivers or device-embedded control circuitry
• B64C 13/04 - Initiating means actuated personally
• B64C 13/50 - Transmitting means with power amplification using electrical energy

Abstract

iiiii which comprise at least one sensor in the operative state thereof, and - when this calculated number is greater than a predetermined threshold, trigger the reporting of correct gripping of the handle.

IPC Classes  ?

• B64C 13/04 - Initiating means actuated personally
• B64D 1/12 - Releasing
• G05G 9/047 - Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously the controlling member being movable by hand about orthogonal axes, e.g. joysticks
• G06F 3/01 - Input arrangements or combined input and output arrangements for interaction between user and computer
• B62D 1/12 - Hand levers

Abstract

The invention relates to a flight control actuator (7) of an aircraft, comprising a main motor (13) controllable by at least one computer (3; 5), an output shaft connected to the main motor (13) as well as to a flight control chain, characterised in that it comprises an electrical disengagement device (9), a system to be disengaged (11), and at least one primary electromechanical relay (R1; R2) controlled by the computer (3; 5) and configured to distribute electrical power to the electrical disengagement device (9), the electrical disengagement device (9) comprising one or more secondary electromechanical relays (R3) and/or electronic static relays configured to open and/or close electrical circuits of the system to be disengaged (11).

IPC Classes  ?

• B64C 13/04 - Initiating means actuated personally
• B64C 13/02 - Initiating means
• B64C 13/50 - Transmitting means with power amplification using electrical energy