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7results about How to "Precision landing" patented technology
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Optimal Control Fast Search Planetary Landing Guidance Method
ActiveCN117902068Bsatisfy control constraintsReduce data storageSystems for re-entry to earthCosmonautic landing devices
This invention discloses a planetary landing guidance method based on rapid search for optimal control, belonging to the field of spacecraft guidance and control technology. The implementation method is as follows: The lander's dynamic model is decoupled into a controlled dynamic model and an uncontrolled dynamic model; an optimization model of the reachable region is constructed using thrust amplitude and thrust direction constraints as constraints, solving for the reachable region of controlled motion in a prediction time domain; a fuel consumption optimization model is constructed using different positions within the reachable region as virtual endpoints, and offline optimization is performed to obtain the optimal fuel consumption control for the lander to reach the specified virtual endpoint position. The optimal control is stored as an optimal control database, and the corresponding virtual endpoint state is stored as an endpoint state database; during landing, the uncontrolled motion is superimposed with the endpoint state database to obtain the lander's state prediction space, the optimal terminal state is searched, and the corresponding optimal control command in the optimal control database is obtained. Planetary landing guidance is then implemented based on the optimal control command.
Owner:BEIJING INST OF TECH
Method and apparatus for determining aircraft flight strategy
This application provides a method and apparatus for determining an aircraft's flight strategy. The method includes: acquiring a first model, which is obtained by training based on first training data, the first training data including flight state information of a first aircraft in a first time period, flight state information of at least one second aircraft in the first time period, and a target flight strategy of the first aircraft in the first time period; acquiring first parameters, the first parameters including flight state information of a third aircraft in a second time period and flight state information of at least one fourth aircraft in the second time period; and inputting the first parameters into the first model to obtain the flight strategy of the third aircraft. This method enables multiple agents to autonomously select routes for aircraft and adjust their speeds along flight paths through extensive training, thereby optimizing terminal area traffic allocation and improving air transport efficiency.
Owner:HUAWEI TECH CO LTD
Unmanned aerial vehicle landing platform centering device
ActiveCN224184543Ulanding safetyprecision landingPower-operated mechanismWing arrangementsCircular discMarine engineering
Owner:TIANJIN NEXUS ELECTRONICS
An unmanned aerial vehicle deicing device with optical flow tracking
ActiveCN224305374Uavoid working at heightsimprove securityOverhead installationSatellite radio beaconingUncrewed vehicleElectric machinery
The utility model discloses an unmanned plane deicing device with light flow tracking function mainly relates to unmanned plane deicing field. Including unmanned plane main part with camera, the unmanned plane main part is carried with big dipper positioning module, light flow tracking module, and the unmanned plane main part bottom is connected with resonance deicing mechanism, the resonance deicing mechanism includes the installation shell, be equipped with motor on the installation shell, the both sides of installation shell are rotatably equipped with a plurality of eccentric wheels through eccentric wheel axle, the inside of installation shell is equipped with transmission mechanism, and the motor is respectively connected with a plurality of eccentric wheel axle drive through transmission mechanism, and the installation shell bottom is equipped with wire clamp. The utility model has the beneficial effect that: through unmanned plane drive deicing equipment to high altitude cable deicing, the inertia of eccentric wheel rotation is transmitted to the cable on vibration deicing through wire clamp, and the deicing efficiency is higher, and carries big dipper positioning module and light flow tracking module, makes the positioning and identification of unmanned plane in the deicing process more accurate.
Owner:CHANGCHUN INST OF ELECTRONIC TECH
Unmanned aerial vehicle landing method, device and equipment and storage medium
PendingCN121957075Aprecision landingGuaranteed accuracyVehicle position/course/altitude controlPosition/direction controlUncrewed vehicleBright spot
The invention discloses an unmanned aerial vehicle landing method, device and equipment and a storage medium, and relates to the technical field of unmanned aerial vehicle control, and the method comprises the steps: firstly obtaining a light emitting diode beacon video stream of an unmanned aerial vehicle landing platform; based on the light-emitting diode beacon video stream, determining a bright spot conforming to a preset flicker mode, the preset flicker mode comprising a combination feature of a light-emitting diode beacon; identifying a preset number of non-coplanar light emitting diode beacon points based on the bright spots conforming to the preset flicker mode; resolving a landing pose of the unmanned aerial vehicle relative to a landing platform based on the preset number of non-coplanar light emitting diode beacon points; and finally, based on the landing pose of the unmanned aerial vehicle, generating a control instruction to drive the unmanned aerial vehicle to land on the landing platform. According to the invention, through cooperation of light emitting diode beacon positioning and pose calculation, accurate positioning of the unmanned aerial vehicle relative to the landing platform is realized.
Owner:紫光天际(南京)科技有限公司
Unmanned aerial vehicle vision-guided precision landing guidance device
The utility model relates to the field of landing guiding device, concretely relates to a kind of unmanned aerial vehicle visual guidance precision landing guiding device, including guiding base, for the device of supporting unmanned aerial vehicle visual guidance precision landing guiding.The utility model a kind of unmanned aerial vehicle visual guidance precision landing guiding device, by the setting of guiding base, handle, rotary drum, first label plate, connecting seat and second label plate, not only design different height platform, simultaneously according to different unmanned aerial vehicle uses different label, the characteristics, color of label are adjusted switching, it is helpful to improve the accuracy of visual guidance positioning, when according to the label on the camera in different unmanned aerial vehicle identified positioning first label plate and second label plate, by pulling handle and driving rotary drum rotation, let rotary drum outside four groups first label plate switch, to meet different unmanned aerial vehicle visual guidance, let unmanned aerial vehicle can accurately visually identify the position of guiding base and connecting seat in high altitude, to accurately land.
Owner:KUNSHAN JIHANG ZHIFEI TECHNOLOGY CO LTD
Unmanned aerial vehicle phased autonomous landing method for air-ground cooperation
ActiveCN121143399BOpen up key closed loopsImprove continuous operation abilityVehicle position/course/altitude controlPosition/direction controlSimulationVision based
The application discloses a kind of unmanned aerial vehicle phased autonomous landing methods for air-ground cooperation, belong to artificial intelligence and robot field.This method includes the first stage based on trajectory tracking fast landing, and the second stage based on visual servo precision landing.First stage uses an improved environment adaptive weighting ant colony algorithm (EAW-ACO) to carry out global path search, and combined with Minimum Snap method generates smooth, safe flight trajectory, guide unmanned aerial vehicle to quickly drop to unmanned vehicle platform nearby.When unmanned aerial vehicle enters the landing area of pre-set, second stage uses the servo control based on visual marker, realizes high-precision terminal alignment and landing.The application has the unique advantage of fast landing in front and accurate docking in the end by the organic combination of two-stage control strategy, provides key technical support for unmanned aerial vehicle-unmanned vehicle air-ground cooperation and cluster continuous operation, has wide application prospect in intelligent warehousing, autonomous inspection and other fields.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS