Abstract:
The present disclosure relates to a method (200) for estimating information related to a vehicle pitch and/or roll angle. The method comprises a step of obtaining (220) a first estimate of the information related to the pitch and/or roll angle. The method is characterized by the steps of capturing (210) an image of an area covering at least a part of the horizon using a camera mounted on the airborne vehicle, and determining (240) an improved estimate of the information related to the pitch and/or roll angle based on the first estimate of the information related to the pitch and/or roll angle, and a digital elevation model.
Abstract:
L'invention concerne un procédé de contrôle dynamique d'attitude d'un drone à voilure tournante comprenant un corps de drone (12) comprenant une carte électronique contrôlant le pilotage du drone, quatre bras de liaison (16), chaque bras comprenant fixé solidairement un bloc propulseur (14). Les bras de liaison (16) forment des ailes portantes. Le drone vole en utilisant la portance des ailes, l'attitude du drone est contrôlée par l'envoi de commandes différenciées à un ou plusieurs desdits blocs propulseurs de manière à produire une rotation du drone autour de l'axe de roulis et/ou de tangage et/ou de lacet du drone depuis une position angulaire courante à une position angulaire finale, ces axes étant définis dans le repère du drone. L'invention concerne également un drone à voilure tournante (10) apte à mettre en oeuvre le procédé de contrôle dynamique.
Abstract:
A method of testing a receptor of a wind turbine includes a step of moving an unmanned aerial vehicle (UAV) close to the receptor of a wind turbine blade mounted to a hub of the wind turbine, and performing an electric continuity test on the receptor.
Abstract:
Redundancy in engine timing position sensing maintains a UAV operational in the event of failure of a primary engine timing position sub-system. The redundancy avoids duplication of the primary crankshaft timing position sensing components, and avoids adding weight, cost and component complexity. Conditioned (square) waveform(s) (102) is/are created from respective sinusoidal waveform(s). Each consecutive leading edge (103a) and trailing edge (103b) of the pulses of the square waveform (102) is derived from the crossing of the zero voltage value by consecutive sinusoidal waveforms A,B,C (e.g. Voltage (V) vs Time (t) or angular degrees). The square pulse waveform (102) is output (104) to a microcontroller (106) to create and output a pseudo crankshaft timing position signal (108) to be used by an ECU to determine ignition and fuel injection events in the event that the primary timing signal from the crankshaft position sensor (CPS) has failed. The signal (108) output to the ECU can have a missing pulse (116) (i.e. indicative of a TDC position of the engine crankshaft) as well as multiple square pulses (114) corresponding to the pulses of the initial square pulse waveform (102). The waveform signal (108) is therefore derived from the alternator waveform signal(s) and provides a pseudo crankshaft timing position signal in the event of failure of the primary or initial CPS signal.
Abstract:
Devices and method for the oil pollution control of both sea aquatorium and inland waters. The device comprises a vertical take-off and landing unmanned aerial vehicle (UAV) (1) equipped with a sampler (10) configured to be moved by a small-scale lifter winch (3), the sampler (10) comprising a container with positive buoyancy (4) and equipped with a fluoropolymeric fine-meshed screen for taking samples from water surface. The method provides a surface-water sampling using the device and comprises the steps of: descending the sampler (10) onto water surface; taking a sample; ascending the sampler (10) aboard the UAV (1); and sealing the collected sample, when the sampler (10) is aboard the UAV (1).
Abstract:
Es wird ein Fluggerät angegeben, das eine Tragestruktur aufweist, die mindestens einen Rumpf, eine Flügelstruktur und wenigstens eine Antriebsvorrichtung aufweist. Die Antriebsvorrichtung weist mindestens einen Propeller und einen Antriebsmotor auf. Das Fluggerät weist mindestens einen Energiespeicher zum Bereitstellen von Energie für den Betrieb der Antriebsvorrichtung auf. Die mindestens eine Antriebsvorrichtung und der mindestens eine Energiespeichersind mittels einer Sicherungseinrichtung mechanisch mit der Tragestruktur und/oder der Flügelstruktur des Fluggeräts verbunden.
Abstract:
A method and apparatus for determining actions for entities (4, 6) such that a goal is accomplished constraints are satisfied. The method comprises: determining an initial plan comprising actions that, if performed by the entities (4, 6), the goal would be accomplished; determining that a constraint would not be satisfied if the initial plan was implemented; and iteratively performing steps (i) to (v) until a final plan that accomplishes the goal and satisfies the is determined. Step (i) comprises identifying a constraint that is not satisfied in part of the current plan. Step (ii) comprises determining a remedy that, if implemented, satisfies the identified constraint. Step (iii) comprises updating the goal specification to include the remedy. Step (iv) comprises, using the updated goal specification, determining a further plan that accomplishes the goal and the remedy. Step (v) comprises determining whether or not the further plan satisfies each constraint.
Abstract:
A method for making a propeller product is disclosed. The propeller is formed using polyurethane cores adhered to a laminate hub to form a core assembly. An encapsulating structural laminate skin is then formed on the core assembly using a resin-transfer-molding process to create a single-piece composite propeller.
Abstract:
An airship (10) may include a hull (22) substantially shaped as an oblate spheroid, one or more frame members (120, 122, 124) defining a support structure (20), wherein the support structure forms at least a partial support for the hull, at least one horizontal stabilizing member (315) operably coupled to a lower surface of the airship, and at least one horizontal stabilizing member (315) having a first end and a second end. The at least one horizontal stabilizing member (315) may define an anhedral configuration. The airship may also include a vertical stabilizing member (310) having a first end pivotally coupled to the airship and a second end oriented to remain below an upper surface of the airship. The vertical stabilizing member (310) may be configured to pivot within a vertical plane, and the first end of the vertical stabilizing member and the first end of the at least one horizontal stabilizing member may • be operably coupled to one another.
Abstract:
The embodiments herein relate to encryption and decryption of media data transmitted between an Unmanned Aerial Vehicle (UAV) and a ground controlling base, when recording and playing back the media data by combining symmetric and asymmetric cryptography.