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

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

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

Abstract

The invention relates to an accelerometer (0) comprising: - a support (Sp); - a mass (M1); - a system (G1) for guiding the mass (M1) along an axis (X-X); - a deformable part (P1); and - a first lever (L1) which pivots about a first pivot point (X1) and is connected to the mass (Ml) and to the deformable part (P1) such that the movement of the mass (Ml) causes the first lever (L1) to pivot. The accelerometer (0) comprises a second lever (L2) which pivots about a second pivot point (X2), the second lever being connected to the support and to the deformable part, the first pivot point and the second pivot point being connected via a bar (11) such that, when the mass moves, the levers pivot and deform the deformable part.

IPC Classes  ?

• G01P 15/097 - Measuring accelerationMeasuring decelerationMeasuring shock, i.e. sudden change of acceleration by making use of inertia forces with conversion into electric or magnetic values by vibratory elements
• G01P 15/08 - Measuring accelerationMeasuring decelerationMeasuring shock, i.e. sudden change of acceleration by making use of inertia forces with conversion into electric or magnetic values
• B81B 3/00 - Devices comprising flexible or deformable elements, e.g. comprising elastic tongues or membranes

Abstract

This imaging device (2) comprises a means (4) for detecting electromagnetic radiation comprising first and second detection zones (6, 8) that are separate and sensitive to first and second spectral bands of the electromagnetic spectrum, respectively, the device (2) comprising an optical system (10) defining a refractive channel (12) configured to direct electromagnetic radiation comprised in the first spectral band to the first detection zone (6), a catadioptric channel (14) configured to direct electromagnetic radiation comprised in the second spectral band to the second detection zone (8), and comprising a dichroic filter (16) placed both on the refractive channel (12) and on the catadioptric channel (14) and configured to transmit electromagnetic radiation comprised in the first spectral band and to reflect electromagnetic radiation comprised in the second spectral band.

IPC Classes  ?

• G02B 13/16 - Optical objectives specially designed for the purposes specified below for use in conjunction with image converters or intensifiers
• G02B 13/18 - Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration
• G02B 17/08 - Catadioptric systems
• G02B 13/14 - Optical objectives specially designed for the purposes specified below for use with infrared or ultraviolet radiation

Abstract

The invention relates to a universal control system (1) for a trim tab of an aircraft (2) comprising a control member (3) that pivots about at least one axis of rotation (5), a main force-feedback means (9), which comprises an electric motor (11) and is linked to the control member (3), a backup force-feedback means (25) linked to the control member (3) via a clutch (27), and a unit (37) for controlling the main force-feedback means (9).

IPC Classes  ?

• B64C 13/10 - Initiating means actuated personally comprising warning devices
• 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
• G05G 5/03 - Means for enhancing the operator's awareness of the arrival of the controlling member at a command or datum positionProviding feel, e.g. means for creating a counterforce

Abstract

The invention relates to an electromagnetic signal-based data collection system, comprising, on the one hand, a collector (100) provided with a first antenna (105) having a first bandwidth and, on the other hand, at least one remote electronic device (200) comprising a second antenna (205) tuned so as to exchange signals with the first antenna, characterized in that the device comprises a thermally protective block (209) in which the second antenna (205) is embedded, and in that the second antenna (205) is tuned such that the second antenna (205) and the thermally protective block (209) form a radiating assembly having a second bandwidth that coincides with the first bandwidth. The invention also relates to a vehicle (A) comprising at least one propulsion engine (M) arranged in an engine compartment (G), and at least one remote device (200) of such a system.

IPC Classes  ?

• H01Q 1/02 - Arrangements for de-icingArrangements for drying-out
• H01Q 1/28 - Adaptation for use in or on aircraft, missiles, satellites, or balloons
• H01Q 21/28 - Combinations of substantially independent non-interacting antenna units or systems
• H01Q 1/22 - SupportsMounting means by structural association with other equipment or articles
• H01Q 1/32 - Adaptation for use in or on road or rail vehicles
• G06K 19/00 - Record carriers for use with machines and with at least a part designed to carry digital markings
• G06K 19/077 - Constructional details, e.g. mounting of circuits in the carrier

Abstract

The invention relates to an electromagnetic signal-based data collection system, comprising, on the one hand, a collector (100) provided with a first antenna (105) having a predetermined bandwidth and, on the other hand, at least one remote electronic device (200) comprising a second antenna (205) having a second bandwidth that coincides with the first bandwidth for exchanging signals with the first antenna. The device comprises a thermally protective casing (207; 210) surrounding at least the second antenna (205) while defining a cavity around it, such that the second antenna radiates signals outside the protective casing substantially in the second bandwidth. The invention also relates to an aircraft equipped with such a system.

IPC Classes  ?

• H01Q 1/00 - Details of, or arrangements associated with, antennas
• H01Q 1/22 - SupportsMounting means by structural association with other equipment or articles
• H01Q 1/28 - Adaptation for use in or on aircraft, missiles, satellites, or balloons

Abstract

The present invention relates to a device (APP) for controlling at least one on-board device (ACT) located in an aircraft (AC) on the basis of flight data (NAV_DATA) delivered by at least one source device (NAV), said control device (APP) comprising a multi-core processor (PROC) comprising: a first core (COR1); a second core (COR2); and an inter-core communication interface (ICC), the second core (COR2) being isolated from said at least one on-board device (ACT) and from said at least one source device (NAV), and the first core (COR1) being configured to: deliver (S130), via said interface (ICC), input data (IN_CLT) obtained from the flight data (NAV_DATA); obtain (S150), via said interface (ICC), output data (OUT_CLT); and deliver (S160) control data (ACT_CMD) obtained from the output data (OUT_CLT).

IPC Classes  ?

• G06F 15/167 - Interprocessor communication using a common memory, e.g. mailbox

Abstract

The invention relates to an actuator (14), especially a linear actuator, in particular for a nacelle of an aircraft, the actuator comprising at least: -a cylinder; - an angle sensor (16); and - a conversion mechanism (18) capable of mechanically connecting the cylinder to the angle sensor (16) and of converting a translational movement of the cylinder into a rotational movement transmitted to the angle sensor (16), the angle sensor (16) comprising a rotating part (20) capable of being driven by the rotational movement, in particular free to rotate about an axis of rotation of the rotational movement transmitted to the angle sensor (16), such that the angle sensor (16) is configured to perform a continuous angle measurement throughout the translational movement of the cylinder.

IPC Classes  ?

• F16H 25/20 - Screw mechanisms
• G01D 5/22 - 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 by varying inductance, e.g. by a movable armature differentially influencing two coils
• G01D 5/20 - 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 by varying inductance, e.g. by a movable armature

Abstract

The present document relates to a connection element (10) comprising a first part (20a) and a second part (20b) which are manufactured by additive manufacturing, the first part (20a) comprising a first frame (21a) intended to be fixed to one of two components, the second part (20b) comprising a second frame (21b) intended to be fixed to the other of two components, the first part (20a) comprising at least one first half-arm (23) extending from the first frame (21a) along a connecting direction (X), each of said at least one first half-arm (23) comprising a tubular cavity (25) housing at least one portion (26) of a second half-arm (24) of the second part (20b), the second half-arm (24) extending from the tubular cavity (25) to the second frame (21b) along the connecting direction (X), an elastomer (30) being interposed annularly in the tubular cavity (25) between the first half-arm (23) and the second half-arm (24).

IPC Classes  ?

• F16F 1/38 - Springs made of plastics, e.g. rubberSprings made of material having high internal friction with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin
• F16F 1/393 - Springs made of plastics, e.g. rubberSprings made of material having high internal friction with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin with spherical or conical sleeves
• F16F 15/08 - Suppression of vibrations of non-rotating, e.g. reciprocating, systemsSuppression of vibrations of rotating systems by use of members not moving with the rotating system using elastic means with rubber springs
• G01J 5/00 - Radiation pyrometry, e.g. infrared or optical thermometry
• 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
• G02B 27/64 - Imaging systems using optical elements for stabilisation of the lateral and angular position of the image
• B33Y 80/00 - Products made by additive manufacturing

Abstract

One aspect of the invention relates to a communication method (3) for a first processor (12) implementing a maintenance function for a second processor (11), the second processor (11) implementing an engine control function, the first processor (12) and the second processor (11) being isolated in communication by an FPGA (21), the FPGA (21) comprising: - a bidirectional first link (L1) with the second processor (11), - a unidirectional second link (L2) to the first processor (12), - a unidirectional third link (L3) from the first processor (12), the method (3) comprising: - the FPGA (21) receiving (31) a frame sent by the first processor (12), - the FPGA (21) evaluating (33) a predefined parameter so as to obtain a value of the predefined parameter dependent on the received frame, - the second processor (11) accessing (34) the value of the predefined parameter via the FPGA (21).

IPC Classes  ?

• G06F 15/163 - Interprocessor communication
• G06F 15/78 - Architectures of general purpose stored program computers comprising a single central processing unit
• G06F 21/76 - Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure computing or processing of information in application-specific integrated circuits [ASIC] or field-programmable devices, e.g. field-programmable gate arrays [FPGA] or programmable logic devices [PLD]

Abstract

The invention relates to a method for correcting drift in a navigation device for a vehicle using a star tracking geolocation means, the method comprising: - a step of preselecting observable stars to be used; then - a step of measurements comprising the navigation device determining the geographical coordinates of the tracker and then, for each of the selected stars, checking the accessibility of the star and measuring the horizontal coordinates; then - a processing step comprising, for all of the stars for which measured horizontal coordinates have been recorded, calculating the geographical coordinates of the star tracker, and estimating the error between the calculated geographical coordinates and the geographical coordinates determined by the navigation device during the tracking of the star; then - a step of estimating the drift error in the navigation device; and - a step of correcting the drift in the navigation device.

IPC Classes  ?

• G01S 5/16 - Position-fixing by co-ordinating two or more direction or position-line determinationsPosition-fixing by co-ordinating two or more distance determinations using electromagnetic waves other than radio waves

Abstract

The present disclosure relates to an assembly for an aircraft comprising: a compensator (5) comprising: a chassis (50) intended to be fixedly mounted on a cell of the aircraft; and an actuator (52) movably mounted on the chassis (50); a mechanical transmission system (40, 42, 44, 46) configured to transmit a force between a flight control (30, 32, 34) of the aircraft and a control surface (20, 22) of the aircraft on the one hand and between the actuator (52) and the control surface (20, 22) on the other hand, the mechanical transmission system (40, 42, 44, 46) being devoid of a hydraulic servomotor; and a control system (6) configured to control the actuator (52) according to a force exerted on the flight control (30, 32, 34) so as to control a movement of the control surface (20, 22) with respect to the cell (10, 14).

IPC Classes  ?

• B64C 27/59 - Transmitting means, e.g. interrelated with initiating means or means acting on blades mechanical
• B64C 13/28 - Transmitting means without power amplification or where power amplification is irrelevant mechanical

Abstract

This buckle fastener (11) comprises a male element (13) and a female element (15) intended to be mechanically fastened to the male element (13) in a reversible manner, the male element (13) and the female element (15) comprising, in the case of one of them, a male connector (23), and, in the case of the other one, a female connector (25) cooperating with the male connector (23) so as to transmit a signal and/or a fluid between the two connectors (23; 25) when the male element (13) and the female element (15) are mechanically fastened, the buckle fastener comprising a means (31) for introducing an angular displacement between the male connector (23) and the female connector (25).

IPC Classes  ?

• A44B 11/26 - BucklesSimilar fasteners for interconnecting straps or the like, e.g. for safety belts with two or more separable parts with push-button fastenings

Abstract

The invention relates to a method for monitoring the integrity of a plurality of pseudorange measurements acquired by a navigation system (2) from signals transmitted by a constellation of satellites (4). The method comprises a first calculation, for each satellite (4) of the constellation, of a first innovation (Inno) reflecting the difference between the measured pseudorange from said satellite (4) and a value of said pseudorange estimated after the event, produced by a Kalman filter (6); a first update of each first innovation (Inno); a second calculation of a first group of first test values (CM); maintaining the set of measured pseudoranges so as to calibrate the Kalman filter (6) if all the first test values (CM) are less than a first predetermined threshold, and otherwise implementing a processing step.

IPC Classes  ?

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

Abstract

ALAmALA/LAAmLA/LAAAmAA A AA at zero.

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 designation system comprising a laser designator and an apparatus for tracking a designation of a target, the apparatus comprising an optronic device (4) comprising an optical imaging sensor (5), the sensor being a sensor on silicon, and the apparatus comprising means for controlling the sensor which are capable of modifying at least one parameter of the sensor in order to image, when in use, at least one designation mark generated by the laser designator per periodically repeating predetermined given time period, the apparatus being asynchronous with the laser designator.

IPC Classes  ?

• F41G 7/22 - Homing guidance systems
• F41G 3/14 - Indirect aiming means
• 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

One aspect of the invention relates to a method (100) for controlling a mechatronic system, based on a model for predicting the behaviour of the mechatronic system and a cost function ensuring compliance with constraints by the mechatronic system, with a view to following path instructions to a prediction horizon, the method comprising: reformulating (10) the constraints into barrier functions and integrating the barrier functions into the cost function; and for each sampling period of a sequence of sampling periods: obtaining (20) the path instructions and at least one measurement of the mechatronic system in a current state; determining (30) coefficients of a polynomial of order m using a Nelder-Mead method optimizing the cost function based on the predicting model, this determining step receiving as input the path instructions and the at least one measurement of the mechatronic system obtained (20); computing (40) a command through evaluation of the polynomial; and applying (50) the command to the mechatronic system.

IPC Classes  ?

• G05B 13/02 - Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric
• G05B 13/04 - Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric involving the use of models or simulators

Abstract

The invention relates to a system for transmitting commands to N hydraulic servo-actuators, N being an integer greater than or equal to 2, the system comprising: N mechanical systems, each mechanical system comprising: - a rotary electric actuator which comprises a first path comprising a motor and a second path comprising a motor; - a linear electric actuator which comprises a third path comprising a motor, the linear electric actuator being connected to the rotary electric actuator by a first mechanical linkage and being capable of being connected to a single hydraulic servo-actuator from among the N hydraulic servo-actuators by a second mechanical linkage; a control system comprising: - a first control device connected by an electrical connection to the first path of the rotary electric actuator of each mechanical system from among the N mechanical systems; - a second control device connected by an electrical connection to the second path of the rotary electric actuator of each mechanical system from among the N mechanical systems; - a third control device connected by an electrical connection to the third path of the linear electric actuator of each mechanical system from among the N mechanical systems.

IPC Classes  ?

• B64C 13/50 - Transmitting means with power amplification using electrical energy
• 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
• B64C 27/64 - Transmitting means, e.g. interrelated with initiating means or means acting on blades using fluid pressure, e.g. having fluid power amplification
• B64C 27/59 - Transmitting means, e.g. interrelated with initiating means or means acting on blades mechanical
• F16H 25/10 - Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for interconverting rotary motion and reciprocating motion with adjustable throw
• H02K 7/06 - Means for converting reciprocating motion into rotary motion or vice versa
• H02K 16/00 - Machines with more than one rotor or stator
• H02K 7/10 - Structural association with clutches, brakes, gears, pulleys or mechanical starters

Abstract

The invention relates to a control device including a mechanical seal (24) which guides the rotation of a control lever (22) relative to a frame (20) about two pivot connections of orthogonal axes. The mechanical seal (24) comprises, for at least one of the pivot connections, a device (54) for returning a movable part (52) into a neutral position relative to a stationary part (50). This return device (54) comprises at least one elastic member (70) including two branches (72, 76) which each extend orthogonally to the axis (X) of the pivot connection from a finger (60) which is integral with one of the movable (52) and stationary (50) parts as far as each free end (74, 78). The or each elastic member (70) is able to prevent the free ends (74, 78) from moving towards one another. The elastic member (70) is inserted, in a transverse direction (T) which is orthogonal to the bisector (B) of the angle between the branches (72, 76), between a stationary pin (62, 64) which is secured to the stationary part (50) and a movable pin (66, 68) which is secured to the movable part (52).

IPC Classes  ?

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

Abstract

The invention relates to a method for assisting in the landing of an aircraft, the method comprising the steps of: - synchronising (302) an on-board system and a ground system by exchanging at least one item of timestamp information between the ground system and the on-board system; - estimating (303) at least one item of information that is characteristic of the distance separating the aircraft from a sub-module of the ground system, and combining (305) the items of information in order to infer therefrom at least one item of information characteristic of the raw general direction of arrival of the aircraft; - estimating at least one item of information characteristic of the direction of a signal transmitted by the aircraft with respect to the ground system; - comparing (307) the information characteristic of the raw general direction of arrival of the aircraft with at least the information characteristic of the direction, and determining at least one item of information characteristic of the refined general direction of arrival of the aircraft relative to the given point in the landing zone.

IPC Classes  ?

• G05D 1/06 - Rate of change of altitude or depth
• G08G 5/00 - Traffic control systems for aircraft
• G01S 13/91 - Radar or analogous systems, specially adapted for specific applications for traffic control
• G01S 1/08 - Systems for determining direction or position line
• G01S 3/02 - Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
• G08G 5/02 - Automatic landing aids, i.e. systems in which flight data of incoming planes are processed to provide landing data
• H04K 3/00 - Jamming of communicationCounter-measures

Abstract

The invention relates to a method for controlling an aircraft comprising at least one camera and a guidance system configured to indicate a trajectory (Ta) to the aircraft (A), the method (1) being implemented by a computer and being characterised in that it comprises the following steps: - acquiring (11) a distance (D) between the aircraft (A) and an obstacle (O) on the trajectory (Ta) of the aircraft (A) and a time before the aircraft (A) collides with the obstacle (O) from images of the obstacle (O) obtained by the camera; - estimating (12) at least one radial speed (Vr) of the obstacle (O) using an extended Kalman filter taking as input the distance (D) and the time before the aircraft (A) collides with the obstacle (O); and - modifying (13) the trajectory (Ta) of the aircraft (A) by the guidance system, according to the estimated radial speed value (Vr) of the obstacle (O) and the distance (D) between the aircraft (A) and the obstacle (O), so as to avoid a collision of the aircraft (A) with the obstacle (O).

IPC Classes  ?

• G05D 1/10 - Simultaneous control of position or course in three dimensions
• G08G 5/04 - Anti-collision systems
• G08G 5/00 - Traffic control systems for aircraft

Abstract

The present invention relates to a navigation method and device (APP) for a vehicle (AC), and to an associated system (SYS), vehicle, computer program (PROG) and storage medium (MEM). The method comprises steps of: determining (S10), by a first navigation module (LOC_GPS), first navigation data for the vehicle (OUT_LOC_GPS) based on data (OUT_IMU, OUT_GPS) from an inertial measurement unit (IMU) and from a satellite positioning module (GPS); and determining (S20), by a second navigation module (LOC_VISION), second navigation data for the vehicle (OUT_LOC_VIS) based on: data (OUT_IMU, OUT_VIS) from the inertial measurement unit (IMU) and images acquired by the vehicle; and additionally based on data (OUT_GPS, OUT_BARO) from the satellite positioning module (GPS) and/or an altimeter (BARO).

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
• G01C 5/06 - Measuring heightMeasuring distances transverse to line of sightLevelling between separated pointsSurveyors' levels by using barometric means

Abstract

The present invention relates to a navigation method and device (APP) for an aircraft (AC), and to an associated system (SYS), aircraft (AC), computer program (PROG) and data storage medium (MEM). The proposed method is characterised in that a navigation module (LOC_VIS) determines navigation data (OUT_LOC_VIS) for the aircraft (AC) and in that it comprises: during a landing phase (S50, S70) of the aircraft (AC), a step of determining navigation data (OUT_LOC_VIS) on the basis of data from an inertial measurement unit (IMU) and images acquired by the aircraft (AC); and during a taxiing phase (S90), a step of determining navigation data (OUT_LOC_VIS) on the basis of data from the inertial measurement unit (IMU) and an odometer (ODOM).

IPC Classes  ?

• G08G 5/06 - Traffic control systems for aircraft for control when on the ground
• G08G 5/02 - Automatic landing aids, i.e. systems in which flight data of incoming planes are processed to provide landing data
• 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
• G01S 19/49 - Determining position by combining or switching between position solutions derived from the satellite radio beacon positioning system and position solutions derived from a further system whereby the further system is an inertial position system, e.g. loosely-coupled
• G05D 1/00 - Control of position, course, altitude or attitude of land, water, air or space vehicles, e.g. using automatic pilots

Abstract

This winding (12) for a planar power transformer comprises at least one stack (50) of conductor tracks (52, 53, 54A, 55, 56, 57, 58). These conductor tracks comprise a first set, forming a primary turn of the winding (12), composed of at least one conductor track referred to as a primary conductor track (52, 53), and a second set, forming a secondary turn of the winding (12), composed of at least one conductor track referred to as a secondary conductor track (55, 56, 57, 58). The first set comprises at least one pair of primary conductor tracks (134) composed of primary conductor tracks (52, 53) that are electrically connected to one other by at least one first electrical connection (136). At least one secondary conductor track (55, 56, 57, 58) extends perpendicular to said first electrical connection (136).

IPC Classes  ?

• H01F 27/28 - CoilsWindingsConductive connections

Abstract

The invention relates to an actuator (20) designed to be connected to a mechanical flight control chain (13) of a vehicle, comprising a motor (22), a first output shaft (23) driven in rotation by the motor (22) about an axis of rotation (X-X) and a second output shaft (24) secured to the first output shaft (23) for conjoint rotation by a coupling/uncoupling device (30') in a coupled position. The coupling/uncoupling device (30') comprises a drive member (34) configured to couple the first output shaft (23) to the second output shaft (24) in the coupled position, a locking member (32') secured to the first output shaft (23) via at least one guide member (36') configured to lock the drive member (34) in the coupled position and an uncoupling member (38') configured to transmit an opening force (F4) to the locking member (32') in the direction of the second output shaft (24).

IPC Classes  ?

• B64C 13/24 - Transmitting means
• B64C 27/58 - Transmitting means, e.g. interrelated with initiating means or means acting on blades
• F16D 9/02 - Couplings with safety member for disconnecting by thermal means, e.g. melting member
• F16D 11/08 - Clutches in which the members have interengaging parts actuated by moving a non-rotating part axially
• F16D 11/16 - Clutches in which the members have interengaging parts with clutching members movable otherwise than only axially

Abstract

The invention relates to a method for processing an infrared image (16) captured by an infrared camera, the method comprising the following steps: - duplicating the infrared image (16) into a first image (20) and a second image (22) (step 18); - locally processing the first image (20) to generate high spatial frequencies by means of an image processing module (step 24); - globally processing the second image (22) by means of the image processing module (step 26); - merging the first image (20) with the second image (22) by means of a module for merging images into a final image (30) comprising at least one fraction of the first image (20) and at least one fraction of the second image (22) (step 28).

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 computer (3) comprising a housing in which at least three processing pathways (12a, 12b, 12c) are integrated, each of which processing pathways comprises: - a first module (21) arranged to acquire measurements produced by at least one sensor (8, 14, 15) to estimate navigation parameters and to check the validity of the navigation parameters by comparing them with those estimated by the other first modules; - a second module (22) arranged to generate commands on the basis of an aircraft trajectory setpoint and valid navigation parameters; - a third module (23) arranged to check the validity of the commands by comparing them with those estimated by the other second modules.

IPC Classes  ?

• 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 an elementary lamination (10) in the form of a hollow disc, characterized in that the outside edge comprises a peripheral portion of said elementary lamination which has at least one structured section having a periodic structure (21) comprising a succession of periodicity elements, said periodic structure (21) being configured for aligning said elementary lamination in a helicoidal lamination stack (30), the peripheral portion further comprising at least one non-structured section (22), an orientation slot (23) being formed in the at least one non-structured section (22), said orientation slot being asymmetrical and/or closer to a periodic structure (21) on a first side of said non-structured section (22) than to the periodic structure (21) on a second side opposite from the first side of said non-structured section (22).

IPC Classes  ?

• H02K 1/24 - Rotor cores with salient poles
• H02K 15/02 - Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
• H02K 24/00 - Machines adapted for the instantaneous transmission or reception of the angular displacement of rotating parts, e.g. synchro, selsyn

Abstract

The invention relates to a variable reluctance resolver (10), comprising a rotor (20) and a stator (30) coaxial with the rotor (20), the stator (30) comprising a plurality of teeth (31), two consecutive teeth (31) forming a tooth angle (ΘD), the rotor (20) comprising a stack of elementary strata coaxially stacked along a central axis (X), characterised in that each elementary stratum defines at least one pair of poles (21M, 21m), the stack comprising a first elementary stratum (25) defining the bottom of the stack and at least one upper elementary stratum (26) superimposed on the first elementary stratum (25), each upper elementary stratum (26) being angularly offset by an offset angle (ΘP) about the central axis (X) with respect to the underlying elementary stratum, the offset angle (ΘP) being equal to the tooth angle (ΘD) multiplied by (N-1)/N, N being the number of stacked elementary strata (25, 26).

IPC Classes  ?

• G01D 5/20 - 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 by varying inductance, e.g. by a movable armature

Abstract

One aspect of the invention relates to a method (100) for mounting an electronic component (25) to a conductive layer (23) of a printed circuit board, the method comprising: 1) depositing (120) a solder paste (26) on the conductive layer (23), the solder paste comprising tin, copper balls and a solder flux; 2) positioning (130) the electronic component (25) on the solder paste; then 3) diffusion-soldering (140) the electronic component. Another aspect of the invention relates to a method (200) for producing a multilayer printed circuit board, the method comprising the following steps: a) mounting at least a first electronic component (25) on an inner conductive layer (23) of a printed circuit board; b) depositing (250) a dielectric layer (21) on the first electronic component (25) and the inner conductive layer (23); and c) mounting (260, 270) at least a second electronic component (24) on an outer conductive layer (22) of the printed circuit board.

IPC Classes  ?

• H05K 1/18 - Printed circuits structurally associated with non-printed electric components
• H05K 3/34 - Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by soldering
• H05K 3/46 - Manufacturing multi-layer circuits

Abstract

The invention relates to an aerial vehicle comprising a fuselage (1) having a front portion (2) provided with an optronic sensor (10) and a cover (11) for protecting the sensor, the cover being removably mounted and held on the fuselage by at least one retaining member (14) arranged to protect the cover against aerodynamic forces exerted on the cover during flight, the air vehicle comprising a member (16) for deactivating the retaining member and an electronic control circuit (7) arranged to control the deactivation member in flight so as to allow the cover to be ejected.

IPC Classes  ?

• F42B 10/52 - Nose cones
• F42B 15/36 - Means for interconnecting rocket-motor and body sectionMulti-stage connectorsDisconnecting means
• F42B 10/46 - Streamlined nose conesWindshieldsRadomes

Abstract

The invention relates to an observation device (26) comprising a mechanical structure (28), a camera (30) and a display module (32) comprising a first micro-display (38) configured to display an image of an item of spectral information measured by the camera (30), the observation device comprising an optical combiner (36) and an arrangement of optical components (34) configured to direct, to the optical combiner (36), an image output by the display module (32) and comprising the item of spectral information displayed by the first micro-display (38), the arrangement of optical components (34) comprising between one and three optical surfaces (40, 44, 46), the optical combiner (36) directing the overlaid image of an observed scene and the image output by the display module (32) to an observation zone (42).

IPC Classes  ?

• G02B 23/12 - Telescopes, e.g. binocularsPeriscopesInstruments for viewing the inside of hollow bodiesViewfindersOptical aiming or sighting devices with means for image conversion or intensification
• G02B 27/00 - Optical systems or apparatus not provided for by any of the groups ,
• G02B 27/01 - Head-up displays
• G02B 23/10 - Telescopes, e.g. binocularsPeriscopesInstruments for viewing the inside of hollow bodiesViewfindersOptical aiming or sighting devices involving prisms or mirrors reflecting into the field of view additional indications, e.g. from collimator
• G02B 23/14 - Viewfinders

Abstract

The present invention relates to optronic equipment (40) containing ballistic armor (10) comprising a three-dimensional reticular structure (20), which can in particular be regular and/or auxetic, and to a manufacturing process comprising a step of additively manufacturing at least the three-dimensional reticular structure (20).

IPC Classes  ?

• F41H 5/04 - Plate construction composed of more than one layer
• F41H 5/16 - Shields for ordnance
• F41G 1/00 - Sighting devices
• F41G 1/38 - Telescopic sights specially adapted for smallarms or ordnanceSupports or mountings therefor
• F41H 5/18 - Rotating shields
• F41H 5/26 - PeepholesWindowsCovers therefor

Abstract

The invention relates to a movement transmission device (30) having: - a first assembly (100) comprising a housing (110) extending along a first axis (B); - a second assembly (200) configured to move in rotation and translation along the first axis inside the housing; - a first elastic member (300); wherein the first assembly comprises a first axial stop (121) and the second assembly comprises a first complementary axial stop (221), a first axial clearance (J1) being formed between the first axial stop and the first complementary axial stop, wherein the first elastic member is capable of being deformed during the translational movement of the second assembly along the first axis when an axial force greater than a first threshold is applied, the first complementary axial stop being axially supported by the first axial stop.

IPC Classes  ?

• F16C 19/16 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with a single row of balls
• F16C 19/18 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
• F16C 19/54 - Systems consisting of a plurality of bearings with rolling friction
• F16C 31/04 - Ball or roller bearings
• F16C 35/067 - Fixing them in a housing
• F16H 35/10 - Arrangements or devices for absorbing overload or preventing damage by overload
• B64D 11/06 - Arrangements or adaptations of seats

Abstract

The present invention relates to an electrical connector (10, 11) having: - a body (12, 21) made from an electrically conductive material, - at least one electrical conductor (13, 23) covered with a layer of electrically insulating material (15, 25), - at least one electrical terminal (16, 26) connected electrically to one end of the electrical conductor (13, 23), and - an insulating insert (18, 28) intended to electrically insulate the electrical terminal (16, 26) relative to the body (12, 21) of the electrical connector (10, 11), - the insulating insert (18, 28) having a first region of electrical continuity (31.1) covered with a layer of electrically conductive material (32, 34) to provide electrical continuity with the body (12, 21), and - a second region of electrical continuity (31.2) covered with a layer of electrically conductive material (33, 35) to provide electrical continuity with the electrical terminal (16, 26), - an elastic seal (40) being arranged in a space (41) in which a volume of air inside the electrical connector (10, 11) is liable to be subjected to a difference in electrical potentials between an electrical potential of the body (12, 21) and an electrical potential of the electrical terminal (16, 26), - the elastic seal (40) being in contact with the first region of electrical continuity (31.1) and with the second region of electrical continuity (31.2).

IPC Classes  ?

• H01R 13/53 - Bases or cases for heavy dutyBases or cases with means for preventing corona or arcing
• H01R 24/38 - Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts
• H01R 13/03 - Contact members characterised by the material, e.g. plating or coating materials
• H01R 13/52 - Dustproof, splashproof, drip-proof, waterproof, or flameproof cases

Abstract

One aspect of the invention relates to a device for powering a synchronous motor comprising a control unit (U1) for controlling transistors of a voltage sine wave inverter (1) comprising an inductor (Li) connecting a first and second node of a transistor arm of the inverter. The control unit (U1) is configured so as, in a startup mode, to: evaluate, during startup, for each phase output, an average value of the direct phase current IPi transmitted at each phase of the synchronous machine according to at least the signal representative of the unidirectional variable direct current of the inductor ILi passing through the corresponding inductor, adjust the control of the transistors (Si, Si', Ri, Ri') according to a received setpoint and the average value of the direct phase current IPi evaluated according to a switching period Tsi and a cyclical charge ratio of the inductor αci.

IPC Classes  ?

• H02P 1/04 - Means for controlling progress of starting sequence in dependence upon time or upon current, speed, or other motor parameter
• H02P 6/20 - Arrangements for starting
• H02M 3/158 - Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
• H02M 7/5387 - Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration
• H02M 7/48 - Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode

Abstract

The invention relates to a device (2) for displaying images having adaptive brightness, comprising an eyepiece intended to accommodate at least one eye (4) of a user, and a digital display (4) in the visible range positioned behind the eyepiece, the display device comprising an illuminator (8) intended to illuminate the eye (4) of the user accommodated by the eyepiece, an image sensor (10) intended to collect an image of the eye of the user accommodated by the eyepiece, and a system (12) for the automatic control of the brightness of the digital display (6) on the basis of at least one physiological variable resulting from the image of the eye (4) of the user.

IPC Classes  ?

• G02B 27/00 - Optical systems or apparatus not provided for by any of the groups ,
• H04N 5/57 - Control of contrast or brightness
• G02B 27/01 - Head-up displays
• G06F 3/147 - Digital output to display device using display panels
• G09G 5/10 - Intensity circuits

Abstract

The invention relates to a device (100) for measuring the pressure of a tyre (2) mounted on a rim (1), comprising: - a valve (110) mounted on the rim (1) and comprising a first channel (112), a pin (115) mounted so as to be translationally movable in the first channel between an opening position and a blocking position; - an intermediate body (120) which is mounted on the valve and which defines a second channel (122) that extends the first channel and receives an attachment rod ((113300)) for attaching the intermediate body to the valve, the attachment rod having a first end suitable for bringing the pin from the blocking position into the opening position, and an intermediate portion that blocks the second channel; - a pressure sensor (140) accommodated in a third channel of the intermediate body that opens into the second channel; and - retaining means (150) for retaining the pressure sensor in the third channel of the intermediate body.

IPC Classes  ?

• B60C 23/04 - Signalling devices actuated by tyre pressure mounted on the wheel or tyre
• B60C 23/00 - Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehiclesArrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanksTyre cooling arrangements
• B60C 29/00 - Arrangements of tyre-inflating valves to tyres or rimsAccessories for tyre-inflating valves, not otherwise provided for

Abstract

One aspect of the invention relates to a process for manufacturing a printed circuit board (1), said process comprising a step of depositing a conductive material (5), by means of an additive-manufacturing device, on a first conductive track (3) that a first layer (2) of the printed circuit board initially has, said process further comprising steps of cutting beforehand, in a second layer (6) of the printed circuit board (1), a shape (7) complementary to the deposit of conductive material (5), and pressing the first layer (2) against said second layer (6).

IPC Classes  ?

• H05K 3/24 - Reinforcing of the conductive pattern
• H05K 1/02 - Printed circuits Details
• H05K 1/18 - Printed circuits structurally associated with non-printed electric components
• H05K 3/42 - Plated through-holes
• H05K 3/46 - Manufacturing multi-layer circuits

Abstract

The invention relates to a flight test method for a system (10) for controlling at least one actuator (7) of an aircraft turbine engine, the system comprising an electric motor (6) and a power device (DP) that comprises at least one energy storage module (3) designed to be charged by an aircraft power system (1), a DC-DC conversion module (4), and a DC-AC conversion module (5), the method comprising steps of: comparing the voltage at the terminals of the energy storage module (3) with the voltage at the terminals of the DC-DC conversion module (4); providing a setpoint voltage as an input in order to verify that the output voltage is in accordance with a specified conversion ratio of the DC-DC conversion module; closing all of the lower transistors, opening all of the higher transistors; and issuing a first input pulse command in order to verify that the output voltage is zero.

IPC Classes  ?

• G01R 31/00 - Arrangements for testing electric propertiesArrangements for locating electric faultsArrangements for electrical testing characterised by what is being tested not provided for elsewhere

Abstract

The invention relates to a system (9) for controlling actuators in an aircraft, the system comprising at least a first actuator (2-a) and a second actuator (2-b) each comprising: - a movement member (3-a, 3-b); - at least one measurement sensor (4-a, 4-b); and - a computing member (5-a, 5-b) internally connected to the movement member (3-a, 3-b) and configured to be connected to at least one electronic computer (1) of the aircraft, the computing member (5-a, 5-b) having a function (COM) for controlling the movement member (3-a, 3-b), the measurement sensor (4-a) of the first actuator (2-a) being externally connected to the computing member (5-b) of the second actuator (2-b), the computing member (5-b) of the second actuator (2-b) also having a function (MON) for monitoring the movement member (3-a) of the first actuator (2-a).

IPC Classes  ?

• B64C 13/50 - Transmitting means with power amplification using electrical energy

Abstract

The invention relates to a navigation method comprising: continuously calculating an inertial location and, at successive current times, obtaining a satellite location in order to calculate a hybrid location by hybridizing the inertial location and the satellite location. The method comprises: calculating an instantaneous deviation at a given time and then a sustained deviation from the time of calculation of the instantaneous deviation to the current time in order to have, for a given period of time, a plurality of sustained deviations from different times of calculation to the current time; calculating, for each sustained deviation, at least one detection indicator; comparing, with a threshold, the detection indicator in order to detect an error in the hybrid location at the current time.

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
• G01S 19/21 - Interference related issues

Abstract

The invention relates to an optronic system for monitoring a space surrounding a military aircraft (100), comprising an electronic processing unit (1), infrared optronic sensors (2) connected to the electronic processing unit (1) and at least one inertial measurement unit (3) connected to the electronic processing unit (1). The electronic processing unit (1) is arranged to: receive, from each optronic sensor (2), a plurality of image signals corresponding to images captured successively over a predetermined period of time; register the images relative to one another on the basis of inertial positioning data supplied by the inertial measurement unit (3); trigger an alert when several of the images comprise, after registration, the same area having an intensity that is greater than a predetermined threshold. The invention also relates to an aircraft equipped with such a device, and a method for monitoring an aircraft.

IPC Classes  ?

• G06V 10/24 - Aligning, centring, orientation detection or correction of the image
• 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
• G06V 10/50 - Extraction of image or video features by performing operations within image blocksExtraction of image or video features by using histograms, e.g. histogram of oriented gradients [HoG]Extraction of image or video features by summing image-intensity valuesProjection analysis
• G06V 20/17 - Terrestrial scenes taken from planes or by drones
• G06V 20/56 - Context or environment of the image exterior to a vehicle by using sensors mounted on the vehicle

Abstract

One aspect of the invention relates to a system for displaying critical and non-critical information on a screen, comprising an electronic computing circuit and an electronic monitoring circuit, the electronic computing circuit being configured to: - process the critical information to be displayed; - construct an image from the non-critical information and incorporate therein the critical information to be displayed; - the monitoring circuit being configured to determine critical information expected for the display, the computing circuit is configured to transmit to the monitoring circuit at least one indicator of a critical state or of a non-critical state of the information rendered by each pixel of the image, - the electronic monitoring circuit is configured to: - extract from the image the critical information received from the indicator, - compare the result of a hash function applied to the expected critical information and to the received critical information.

IPC Classes  ?

• G09G 5/377 - Details of the operation on graphic patterns for mixing or overlaying two or more graphic patterns

Abstract

One aspect of the invention relates to a method for manufacturing a printed circuit (20), the method comprising: a first step (101) of positioning a magnetic core (21) on a first double-sided printed circuit (31); a second step (102) of depositing a resin layer on the first double-sided printed circuit (31), this resin layer (41) surrounding and covering the magnetic core (21); a third step (103) of positioning a second single-sided or double-sided printed circuit (32) on the resin layer (41); a fourth step (104) of pressing an assembly comprising the magnetic core (21) and the resin layer (41) and the first double-sided printed circuit and the second single-sided or double-sided printed circuit; and a fifth step (105) of forming a plurality of vias (51, 52) through the assembly.

IPC Classes  ?

• H01F 41/04 - Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformersApparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils or magnets for manufacturing coils
• H01F 27/28 - CoilsWindingsConductive connections
• H05K 1/16 - Printed circuits incorporating printed electric components, e.g. printed resistor, capacitor, inductor

Abstract

The invention relates to a parachute comprising a canopy (2) having a leading edge (3) and a trailing edge opposite to the leading edge (3), suspension lines (5) each having a first end (6) attached to the leading edge (3) and a second end that is designed to bear a load, and a slider (8) having through-elements for the suspension lines to pass through, said elements being connected to one another by attachment means, each of the through-elements being passed through by one of the suspension lines (5) and being free to move in translation relative to the respective line, the slider (8) being suitable for being able to slide along the suspension lines that pass through the through-elements in the direction of the first ends (6) of the suspension lines (5) toward their second ends under the effect of gravity and the force generated by the separation of the suspension lines as the parachute starts to descend which tends to separate the suspension lines (5) when the canopy (2) inflates.

IPC Classes  ?

• B64D 17/06 - Canopy arrangement or construction formed with two or more canopies arranged in a cluster
• B64D 17/34 - Load suspension adapted to control direction or rate of descent
• B64D 17/36 - Load suspension incorporating friction devices or frangible connections to reduce shock loading of canopy
• B64D 17/08 - Secondary or shock-absorbing canopies attached to load line
• B64D 17/62 - Deployment