Patents
Literature
Patsnap Copilot is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Patsnap Copilot

39results about How to "Improve the efficiency of performing tasks" patented technology

Four-rotor multipurpose flying robot

The invention relates to a four-rotor multipurpose flying robot which comprises rotorcrafts and a control device, wherein each rotorcraft comprises a base plate, propellers, a wireless signal transceiver, a driving device, a controller and an electric energy storage device; the propellers are in transmission connection with the driving devices through transmission mechanisms; the driving devices and the wireless signal transceivers are electrically connected with the controllers; the controllers are electrically connected with the electric energy storage devices; an anti-collision ring is arranged on the outer side of the propellers of each rotorcraft; the anti-collision rings are fixedly connected to the upper sides of the four corners of the corresponding base plate; an ultrasonic sensor is arranged on the outer wall of one side, away from each base plate, of the corresponding anti-collision ring; the ultrasonic sensors are electrically connected with the controllers; support legs are fixedly arranged on the lower sides of the four corners of each base plate. According to the four-rotor multipurpose flying robot, the ultrasonic sensors are arranged on conventional rotorcrafts, so that the probability of collision of the flying robot in a flying process is reduced, the controllability of the flying robot s improved, meanwhile, flying of the flying robot in a narrow passage is facilitated, and task performance efficiency is improved.
Owner:南京航天国器智能装备有限公司 +1

DDPG-based unmanned aerial vehicle autonomous guidance control method

The invention provides a DDPG (Deep Deterministic Policy Gradient)-based unmanned aerial vehicle autonomous guidance control method. The method comprises the steps of: establishing an unmanned aerialvehicle three-degree-of-freedom motion model, an unmanned aerial vehicle maneuvering control model, a reference terrain three-dimensional model and a peak three-dimensional model; calculating a terrain obstacle influence degree value of an unmanned aerial vehicle at the current position; constructing an evaluation network, a strategy network and a corresponding target network, and training the evaluation network and the strategy network; and using the training result as an unmanned aerial vehicle flight control outer loop controller to control the two-way overload and the unmanned aerial vehicle speed inclination angle of the unmanned aerial vehicle. According to the method, a deep reinforcement learning method is combined with unmanned aerial vehicle guidance control, learning training iscarried out in an offline simulation environment, practical application is carried out after requirements are met, the autonomy of the unmanned aerial vehicle in the task execution process is greatlyenhanced, and the task execution efficiency of the unmanned aerial vehicle is improved.
Owner:NORTHWESTERN POLYTECHNICAL UNIV

DDQN-based autonomous guidance maneuver decision-making method for unmanned aerial vehicle

The invention provides a DDQN-based autonomous guidance maneuver decision-making method for an unmanned aerial vehicle, which is an unmanned aerial vehicle autonomous guidance maneuver decision-makingmethod based on combination of a priority sampling double-depth Q learning algorithm and a Markov decision-making process; the double-Q learning algorithm is introduced to improve the iteration modeof the deep Q learning algorithm, and the training efficiency is improved. A priority sampling method is adopted to promote rapid convergence of the algorithm, and the diversity of historical data isbetter utilized; the unmanned aerial vehicle can realize autonomous guidance maneuvering decision making according to the external flight environment state, and completes autonomous guidance maneuvering decision making under a fixed target point to effectively improve the flight autonomy of the unmanned aerial vehicle. According to the method, the over-fitting problem existing in the DQN algorithmis solved, the offline training efficiency of the autonomous guidance maneuvering decision-making method of the unmanned aerial vehicle is greatly improved, the autonomy of the unmanned aerial vehicle in the flight process is enhanced, and the task execution efficiency of the unmanned aerial vehicle is improved.
Owner:NORTHWESTERN POLYTECHNICAL UNIV

Anytime recovery sparse A<*> and Kalman filtering-based dynamic route planning method

The invention discloses an anytime recovery sparse A<*> and Kalman filtering-based dynamic route planning method, and belongs to the technical field of unmanned aerial vehicle route planning. The implementation method comprises the steps of firstly, estimating dynamic threat and a position of a moving target in a next moment task environment by a self-adaptive expansion Kalman filtering algorithmwithin a target observation period T according to a rolling planning strategy, and taking an estimation result as input information of unmanned aerial vehicle route planning; and secondly, performingunmanned aerial vehicle rapid route planning by employing the Anytime recovery sparse A<*> algorithm so that an unmanned aerial vehicle can sense the environmental changes in advance, a route direction is changed, a practical route is output within limited time, the dynamic threat is smoothly prevented and a target region is accurately reached. Under the condition that the dynamic threat and the moving target exists in a real task environment of the unmanned aerial vehicle, all threats all can be enabled to be prevented by the unmanned aerial vehicle, and the time of reaching the target regionis shortened. The anytime recovery sparse A<*> and Kalman filtering-based dynamic route planning method has the characteristics of high solution efficiency and high robustness.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY

Unmanned aerial vehicle obstacle avoidance method based on binocular vision system

The invention discloses an unmanned aerial vehicle obstacle avoidance method based on a binocular vision system. A binocular vision system acquires image information to obtain depth map information; with an ecological method, denoising is performed on the depth map by combining an exponential weighted moving average algorithm; an obstacle contour is extracted according to a threshold segmentationalgorithm based on region growing and fitting is performed by using a rectangular box to obtain a parallax value; an obstacle distance is calculated by the similar triangle theorem; the obtained distance is transmitted to a flight controller and is compared with a preset threshold distance, different commands are sent out, and then an unmanned aerial vehicle completes obstacle avoidance at accurate timing. According to the invention, on the basis of combination of the morphological method with the exponential weighted moving average algorithm, the denoising degree of the depth map is increased, the calculation accuracy of the distance between the unmanned aerial vehicle and the obstacle is improved, the fast visual obstacle avoidance capability of the unmanned aerial vehicle is enhanced, and the accuracy is greatly improved by being compared with the existing algorithms.
Owner:TAIYUAN UNIV OF TECH

Unmanned aerial vehicle control method and device, unmanned aerial vehicle, system, and storage medium

An unmanned aerial vehicle control method and device, an unmanned aerial vehicle, a system, and a storage medium, the method comprising: generating a flight strategy for unmanned aerial vehicles in an unmanned aerial vehicle group (S201), the flight strategy comprising a flight instruction for instructing the unmanned aerial vehicles to fly to a target position at a target time; sending flight information to the unmanned aerial vehicles in the unmanned aerial vehicle group (S202), the flight information comprising the generated flight strategy; performing clock synchronization processing on the unmanned aerial vehicles in the unmanned aerial vehicle group, so as to set a reference time for the unmanned aerial vehicles (S203); and sending a takeoff instruction to the unmanned aerial vehicles in the unmanned aerial vehicle group (S204), the takeoff instruction being used for triggering the unmanned aerial vehicles to fly, with the reference time as a standard reference time and according to the instruction of the flight strategy, to the target position at the target time. The method achieves the coordinated operation of unmanned aerial vehicles in an unmanned aerial vehicle group, improving the efficiency of the unmanned aerial vehicle group executing a task.
Owner:SZ DJI TECH CO LTD

Method and device for avoiding robot collision

The invention discloses a method and device for avoiding robot collision, and relates to the technical field of computers. One embodiment of the method comprises the steps of generating a datum pointset from a start point to a target point through path planning, and acquiring interference area identities corresponding to datum points of the datum point set; splitting the datum point set accordingto the interference area identities corresponding to the datum points, and setting interference area identities for multiple child routes obtained through split respectively; and locking the corresponding interference areas according to the interference area identities of the child routes, and issuing route instructions after locking succeeds to enable the robot to enter an interference area, wherein the interference area is acquired by dividing the datum points according to distribution of the datum points in a target area. According to the method for avoiding robot collision, because the interference area is marked off beforehand, and the interference area identities are set for the child routes, the corresponding interference area is locked according to the interference area identitiesof the child routes, it is guaranteed that only one robot can enter the interference area, and robot collision is avoided.
Owner:BEIJING JINGDONG QIANSHITECHNOLOGY CO LTD

A method and device for preventing robot collision

The invention discloses a method and a device for preventing robot collisions, and relates to the technical field of computers. A specific implementation of the method includes: generating a set of reference points from the starting point to the target point through path planning, and obtaining the identification of the interference area corresponding to the reference point of the set of reference points; according to the identification of the interference area corresponding to the reference point, the set of reference points Carry out splitting, and set the interference area identification for the multiple sub-routes obtained from the splitting; lock the corresponding interference area according to the interference area identification of the sub-routes, and issue routing instructions after the locking is successful, so that the robot enters the interference area; among them, the interference The area is obtained by dividing the reference points according to the distribution of the reference points in the target area. The method divides the interference area in advance, and sets the interference area identification for the sub-routing, so as to lock the corresponding interference area according to the interference area identification of the sub-routing, so as to ensure that only one robot can enter the interference area, and avoid robot collision.
Owner:BEIJING JINGDONG QIANSHITECHNOLOGY CO LTD

Remote control starting system for piston engine unmanned aerial vehicle

The invention relates to a remote control starting system for a piston engine unmanned aerial vehicle, which belongs to the field of aviation unmanned aerial vehicles, and comprises an airplane-boardsystem and a ground command and control system. The airplane-board system starts the airplane engine, collects system parameters, receives and sends and controls data during the flying process. The ground command and control system displays the work state of the unmanned aerial vehicle in a real-time manner to a manipulator of the unmanned aerial vehicle, and sends instructions input by the manipulator of the unmanned aerial vehicle to the airplane-board system, and conducts remote control on the unmanned aerial vehicle. Data interaction between the airplane-board system and the ground commandand control system are conducted through an airplane-board data sending/receiving terminal and a ground data sending/receiving terminal. The invention is advantageous in that under the situation thatstorage batteries in the airplane are sufficient in power, no multiple returning maintenance is required when quite a large amount of work conditions occur; the technical problem of time and labor consuming due to the fact that support personnel need to conduct multiple maintenance through multiple trip under the current situation can be resolved; the airplane preparation time can be shortened, and the system is especially suitable for work fields without access to the unmanned aerial vehicles.
Owner:XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA

Multi-unmanned aerial vehicle collaborative operation scheduling method and system, and storage medium

The invention discloses a multi-unmanned aerial vehicle cooperative operation scheduling method and system and a storage medium, and the method comprises the steps: assigning stage tasks to unmanned aerial vehicles without task execution, and enabling the landing time of all unmanned aerial vehicles in the same group to be staggered; planning a stage flight path for the corresponding unmanned aerial vehicle according to the stage task, wherein an end point of the stage flight path is a drop point of the unmanned aerial vehicle; controlling each unmanned aerial vehicle to fly along the corresponding stage flight path to execute operation; and controlling the battery replacement robot to move to the landing point of each unmanned aerial vehicle and carrying out battery replacement service on the unmanned aerial vehicle corresponding to the landing point. The landing time of the unmanned aerial vehicles is staggered, so that the battery replacement robot can move to the landing points of the unmanned aerial vehicles in sequence to provide battery replacement service for the unmanned aerial vehicles, the idle running time of the unmanned aerial vehicles can be shortened, and the battery power of the unmanned aerial vehicles can be fully applied to task execution; and the interval time between the tasks in each stage is short, so that the task execution efficiency of the unmanned aerial vehicle can be improved.
Owner:中交华南勘察测绘科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products