111 results about "Landing point" patented technology

A method for assisting an aircraft in landing on a runway and an associated system includes determining a target exit point from the runway and a target taxi speed at which the aircraft has to take the target exit; calculating a target ground distance representative of a ground deceleration phase; and calculating the position of a target touchdown point on the basis of the target ground distance. The target ground distance is calculated as a function of a target deceleration profile for the aircraft to reach the target exit point at the target taxi speed.

This utility model relates to the field of in vitro diagnostic automation equipment technology, and discloses a feeding slide structure and a testing analyzer, including: a hopper having an inlet end and an outlet end. A slide is set at the outlet end and partially extends into the hopper. A receiving component is set at the part of the slide extending into the hopper, and is located at the landing point of the reaction cup after entering the hopper. The cup-guiding structure includes a guiding plate located above the slide, one end of which is rotatably set close to the outlet end, and the other end extends towards the slide. The guiding plate is used to correct the posture of the reaction cup entering the slide. The feeding slide structure provided by this utility model improves the correction efficiency of the reaction cup through the receiving component, reduces the time the reaction cup takes to pass through the hopper, can adapt to the feeding requirements of high-speed equipment, reduces the probability of cup stacking and jamming, and can also prevent malfunctions caused by cup overflow through the guiding plate.

The application relates to the technical field of computer vision, and discloses a target object motion state analysis method, device and equipment, the method comprising the following steps: reconstructing based on multiple images shot by a camera during target object motion to obtain multiple position points; determining an initial motion interval of the target object based on a preset starting point and a preset landing point; correcting the initial motion interval to obtain a target motion interval; performing trajectory fitting based on the target motion interval to obtain a flight trajectory; and performing prediction based on the flight trajectory to obtain a predicted landing point. The application preliminarily determines the initial motion interval by extracting the position information of the target object, thereby obtaining an accurate target motion interval; the flight trajectory is obtained by performing trajectory fitting based on the target motion interval, which is helpful for intuitively understanding the motion state of the target object; the landing point of the target object is predicted based on the trajectory, and the accuracy of trajectory fitting and landing point prediction is improved, so that accurate analysis of the motion state of the target object is realized.

The application belongs to the technical field of robots, and discloses a three-dimensional force sensing-based detection and balance control method and system for a legged robot. The method comprises the following steps: determining the number of the leg of the multi-legged robot that slips according to a three-dimensional force signal of the multi-legged robot in contact with the ground; and adjusting the multi-legged robot in the following manner when slipping occurs: (1) adjusting the height of the center of mass of the multi-legged robot; (2) for the leg that slips, actively adjusting the joint stiffness and joint damping of the leg to relieve instantaneous impact; applying foot end acceleration and adjusting normal support force to suppress slipping; and adjusting the target foot landing point at the next time. Through the application, the balance of the robot can be quickly restored after slipping occurs, the risk of instability is reduced, and the stability of the robot in a complex environment is ensured.

This invention provides a safety assurance method and system for unmanned aerial vehicles (UAVs) used for medical examinations of high-rise buildings in cities. The method includes: continuously monitoring the flight parameters of the UAV, sampling the flight parameter data at a frequency of ≥100Hz, and performing fusion processing using a Kalman filter algorithm; employing a fault diagnosis algorithm, based on a dual judgment mechanism of threshold and trend analysis, to analyze the collected flight parameter data in real time; comparing power redundancy and attitude stability indicators with preset thresholds to determine the fault level, and performing graded emergency handling according to the fault level, triggering corresponding handling and response strategies for non-catastrophic or catastrophic faults; after the UAV lands, confirming the safety of the landing point through visual SLAM or GPS positioning, and initiating onboard communication to report the status. This invention provides a complete solution from fault prevention to collision buffering through redundant design, graded emergency response, and dual-level protection, maximizing the protection effect and facilitating industrial implementation and verification.

The present disclosure provides an adaptive complex positioning method and apparatus which may combine measurement information about a wireless communication infrastructure, installed near a take-off and landing point of air mobility, with information obtained from a sensor equipped in air mobility and may thus have high position accuracy in a complicated center of a city also, in order to solve a problem where the position accuracy of a conventional global navigation satellite system (GNSS) is lowered in a complicated center of a city.

A propulsion-based payload transporter (PPT) and methods of its operation are provided. The PPT may operate in a gravitational field such as that on the lunar surface. Via rocket engines that produce thrust, the PPT is configured to descend onto and over a payload to be moved. Once in position with respect to the payload, latches engage with the payload so as to secure the payload in a payload holding bay of the PPT. The rocket engines produce thrust with an exhaust plume that is angled away from the payload to avoid payload damage. The rocket engines, which are located at the sides of the payload holding bay, produce thrust to propel the PPT and the payload in a substantially horizontal trajectory with respect to gravity and toward a landing destination.

The utility model discloses an embodiment relates to a kind of recycling storage systems of unmanned plane, by a box that can contain unmanned plane, it is equipped with openable top cover and lifting platform, by these parts cooperate, recycling unmanned plane falling above the box.The technical scheme provided in the application can be arranged at any place, that is, the homeward landing point of unmanned plane is set above the recycling storage system, the whole box is controlled by motor, and the unmanned plane is received in safe and reliable box by mutual cooperation.For example, the recycling storage system of unmanned plane is set in the pickup truck rear hopper, realizes the cruising use of mobile unmanned plane, and the use scene is more flexible, and unmanned plane can be recycled and released at any time and anywhere.

The application discloses a truss environment-oriented two-legged robot crawling landing point sequence planning method and belongs to the technical field of robots; the method first constructs a truss undirected graph topology model based on the spatial connection relationship of truss joints and members, takes nodes to represent the truss joints, takes edges to represent the members and takes the member length as the edge weight; the A star algorithm is adopted on the topology model to search for the node sequence and the member sequence of the robot from the starting member to the target member; subsequently, the axial position of the member is described through a normalized member parameter model, and the non-connected feasible landing area set of the robot foot end is represented in combination with One-Hot coding; on this basis, the least number of steps required for the robot to reach the target position is taken as an optimization target, a mixed integer quadratic constraint programming model is established, the landing point sequence is solved, and the optimal landing point sequence satisfying the truss topology constraint and the robot motion constraint is obtained. The application can realize the landing point sequence planning of a two-legged truss crawling robot on a complex truss structure.

The utility model provides a kind of Apli leg type impact energy-absorbing protective device for automobile pedestrian protection, including box, box inside hollow formation accommodating cavity, the side of box is equipped with the impact port that is communicated with accommodating cavity, the hook in accommodating cavity is set to the top of box, the side wall of box is set to first protective pad back to impact port, the bottom of box is set to second protective pad, the top of box is set to third protective pad. By setting box, the flight distance of Apli leg type after being impacted can be limited, which is limited in accommodating cavity, after the flight distance is reduced, the landing point deviation rate caused by flight angle is reduced, at the same time, by setting first protective pad on the side wall back to impact port, second protective pad and third protective pad are respectively set on the bottom and top of box, different angle protective measures can be formed in the direction away from impact port, after Apli leg type is impacted and flies, kinetic energy is absorbed, Apli leg type is protected from damage.

This application discloses a method, apparatus, electronic device, and storage medium for generating gait of a digital human. The method includes: acquiring three-dimensional terrain data of a virtual scene; constructing a terrain traction field of the virtual scene using the three-dimensional terrain data; wherein the terrain traction field is a data set representing the traction intensity of each voxel of the three-dimensional terrain on the feet of the virtual digital human and the suggested landing posture; predicting the gait of a target virtual digital human based on the terrain traction field of the virtual scene to generate an optimal landing point sequence; determining the current target landing point from the optimal landing point sequence; adjusting the gait data of the target virtual digital human landing at the current target landing point based on the data at the current target landing point in the terrain traction field of the virtual scene, and rigidly locking the foot when it touches the ground to obtain the current gait of the target virtual digital human.

This application discloses a method for controlling the landing point of a rail grinding vehicle and a control system for the grinding device. The method includes: pre-setting a hovering point to divide the total stroke Y into a first stroke Y1 and a second stroke Y2; and obtaining the target rail contact position P. 2目标 In P 2目标 The initial settings on one side are: preset landing point precise control start position P1, preset start falling position P0; the distance between P2 and P1 is S2, and the distance between P1 and P0 is S1; when the grinding head reaches P0, the grinding head starts Y1 and has already hovered at the preset hovering point before P1; when the grinding head of the rail grinding car reaches P1, the grinding head starts Y2 until it actually touches the rail and stops falling, obtaining the actual time T from the start of Y2 to the actual contact with the rail. 2实际 ; in P 2实际 and P 2目标 When the absolute value of the distance |ΔS| is greater than the preset error range, calculate and update S2=T. 2实际 ×V 车 This application solves the problem of low precision in grinding head descent.

The application discloses a kind of based on environmental perception's exoskeleton robot gait autonomous decision-making method, belong to robot automatic control field.It is composed of data acquisition module, environmental perception module, gait switching module three parts, wherein data acquisition module obtains current scene information data by vision sensor, the type information and distance information of ground in front are measured by environmental perception module, gait switching module calculates the landing point of each step according to the track energy of man-machine system, and the end trajectory is planned using the method of dynamic motion primitive, and the step length is dynamically adjusted, so that man-machine system can smoothly reach the terrain in front;And the size information of terrain in front is obtained by environmental perception module, and the gait parameters of exoskeleton robot are dynamically adjusted, to ensure that exoskeleton robot can smoothly, safely and autonomously switch gait;Through motor execution position feedback information, whether the current task of exoskeleton robot is executed is judged in real time.

The application discloses a robot landing point planning method and device, equipment and storage medium, relates to the technical field of robot control, and discloses a robot landing point planning method, comprising: acquiring terrain perception information, robot state data, motion accessibility constraint data and collision risk assessment data; generating candidate landing points of the robot based on the terrain perception information and the robot state data; constructing stability indexes, energy consumption indexes and obstacle indexes of the candidate landing points based on the terrain perception information, the robot state data, the motion accessibility constraint data and the collision risk assessment data; determining candidate landing point score information based on the stability indexes, the energy consumption indexes and the obstacle indexes; and determining the target landing point of the robot from the candidate landing points based on the candidate landing point score information to complete the landing point planning of the robot. The scheme effectively improves the passing capacity of the robot in complex terrain and reduces the risk of falling.

The application discloses a tennis serving skill training method and a tennis training system, relates to the technical field of tennis, and comprises the following steps: S1, acquiring court data; S2, acquiring serving data of a sports person, comprising the following steps: S21, acquiring three-dimensional coordinate values of a hitting point during serving; S22, acquiring a rotation angle of a racket during a hitting process during serving; S23, acquiring a rotation angular velocity of the racket during serving; S24, acquiring an instantaneous swing speed of the racket during hitting; S3, acquiring a landing point position and a ball speed of each serving in the step S2; S4, repeatedly performing the steps S2 and S3 to acquire multiple groups of serving data; S5, calculating and acquiring a regression equation of landing point deviation, a regression equation of landing point depth and a regression equation of the ball speed; S6, making serving action optimization suggestions by presetting the landing point position and the ball speed and utilizing the regression equations to calculate and compare. The application has the effect that serving skills can be improved through optimization measures of the landing point depth, the landing point deviation and the ball speed during serving.

The application discloses a fixed-wing flight device landing control method and device, the method comprises the following steps: collecting the geographical information of the runway to construct a data calibration difference table; obtaining the first height difference of the flight device relative to the take-off point determined by each height sensor according to the take-off data and the data calibration difference table; obtaining the second height difference of the flight device relative to the estimated landing point determined by each height sensor based on the height difference between the estimated landing point and the take-off point; selecting the second height difference of a single height sensor as a height source for landing control according to the landing field difference until the flight device lands. The application solves the problem that the existing landing technology is difficult to realize safe and accurate landing control under complex runway conditions, reduces the hardware cost, avoids environmental interference and measurement error caused by additional equipment, and is an economical, efficient and safe solution.

This application discloses an intelligent obstacle avoidance method and related equipment for UAV landing areas based on a monocular camera. The method includes: determining the coordinates of the warning area in the northeast-east coordinate system based on the warning distance and the landing point coordinates, and converting them to image warning area coordinates in the image coordinate system; processing the real-time monitoring image through a target detection model to obtain the positional and category features of obstacles, thereby obtaining the positional and category information of the obstacles; updating the obstacle count value of the warning area based on the obstacle positional and category information and the image warning area coordinates, and then controlling the UAV to execute an obstacle avoidance strategy. This application's embodiment achieves accurate identification and intelligent avoidance of obstacles in the landing area with low hardware cost and low computational burden by mapping the warning area to the image coordinate system and combining it with a lightweight target detection model. This application can be widely applied in the field of UAV control technology.

This invention discloses a collaborative scheduling method for drones and non-motorized vehicles in terrain-constrained areas. The steps include: acquiring order data and dividing it into discrete time decision segments; defining a collaborative delivery process, transporting goods from the pickup point to the drone's take-off and landing point, then having the drone transport goods across areas to the landing point, and finally delivering them to the delivery point by non-motorized vehicles; constructing a nonlinear programming model with the objective function of minimizing total economic waste; setting constraints, including maximum drone payload constraints, order conservation constraints, and binary constraints on take-off decision variables; solving the model using a mathematical programming solver to determine the optimal take-off decision sequence; and generating the final drone delivery timetable. This invention scientifically quantifies time and capacity waste in the delivery process through a mathematical model. Experiments show that this method can reduce the overall waste value by more than 50%, and operators can flexibly adjust the concern coefficient to adapt to different scenario requirements.

The present invention (also referred to as “method and system for displaying ball placement location in screen golf or hybrid golf game”) is a technology that implements a teeing area and ball location for each hole to enable exercise in conjunction with actual golf and indoor screen golf, including an omitted section from the teeing ground to a point before the landing point of the second or third ball, and obstacles such as the actual green and surrounding bunkers, rough, and hazards in indoor and outdoor hybrid golf. The invention relates to a golf system that displays the landing position of a ball on the teeing ground of an indoor or outdoor practice range using a laser beam (which is also referred to as “a ball placement position at a corresponding location using a laser projection device, video projector, or holographic display device, by converting virtual ball landing point coordinates calculated based on the player’s shot result into actual playing space coordinates) and to the design and method of use thereof. The present invention provides a virtual-reality linked golf interface technology that specifies the position of a player's subsequent shot by synchronizing the results of a virtual golf simulation with the physical coordinates of an actual playing space.

A computer-implemented method includes accessing route data indicative of a route for a first aircraft to fly within a geographic area. The method includes accessing data indicative of a plurality of contingency landing locations within the geographic area. The method includes processing such data to compute a contingency landing plan that assigns at least one respective contingency landing location to each route segment of the first aircraft. The method includes accessing data indicative of a change in flight operations of a second aircraft that is in-flight within the geographic area and computing an updated contingency landing plan for the first aircraft based on the change in the flight operations of the second aircraft. The method includes transmitting, over a network to a computing device associated with the first aircraft, one or more signals indicative of the updated contingency landing plan.

The application relates to a route automatic planning design method and system, which comprises the following steps: constructing a dynamic constraint map and an energy consumption feasibility gear set; based on the dynamic constraint map and the energy consumption feasibility gear set, automatically dividing a task to be executed by a UAV into multiple strips, constructing a task time graph according to the endpoints of the strips, take-off and landing points and a task substitution relationship; generating multiple path segments, and combining the energy consumption feasibility gear set to assign a recommended flight gear and a passing time period to each path segment to form an initial route plan; based on the initial route plan, outputting an enhanced pre-flight plan; in the flight process of the UAV, collecting positioning, weather, obstacle avoidance, power and link quality data in real time, and reporting the data to an online event bus; when the online event bus triggers a preset event, updating the pre-flight plan to obtain an incremental update plan; evaluating and improving the incremental update plan to generate a final planned target route. The application can improve the accuracy of UAV route planning.

This invention discloses a fully automated intelligent scoring system for badminton, relating to the field of sports equipment technology. This invention can record the athlete's position and the trajectory of the shuttlecock in real time, collect match data through a pressure sensor array and a high-precision monitoring camera, and determine the landing point and net contact. Simultaneously, the system is designed with a buffer protection mechanism, adjusting the buffer strength through liquid resistance and temperature control to improve the equipment's durability and adaptability, ensuring stable operation even in high-speed sports scenarios. This system features high precision, automation, flexibility, and durability, providing efficient and fair technical support for badminton matches.

A propulsion-based payload transporter (PPT) and methods of its operation are provided. The PPT may operate in a gravitational field such as that on the lunar surface. Via rocket engines that produce thrust, the PPT is configured to descend onto and over a payload to be moved. Once in position with respect to the payload, latches engage with the payload so as to secure the payload in a payload holding bay of the PPT. The rocket engines produce thrust with an exhaust plume that is angled away from the payload to avoid payload damage. The rocket engines, which are located at the sides of the payload holding bay, produce thrust to propel the PPT and the payload in a substantially horizontal trajectory with respect to gravity and toward a landing destination.

The application relates to the technical field of robot control, and discloses a biped robot walking control method based on model predictive control and a landing point optimization. The method aims to solve the problems of insufficient stability and poor adaptability of the prior art when coping with external disturbances and uneven terrains. The core of the application is to perform optimization control on the supporting leg and the swing leg respectively: model predictive control (MPC) is adopted to realize real-time optimization of the three-dimensional ground reaction force of the supporting leg, so that the effective support of the supporting leg on the torso is ensured; meanwhile, a gait stability feedback controller is designed, real-time state feedback is provided through a state observer, the swing leg trajectory is optimized, the landing point position of the robot is dynamically corrected, and the anti-interference ability of the system is enhanced.

This application discloses a page positioning and verification method and system based on AI planning, relating to the field of interface execution control technology. The method includes: obtaining a target description sheet based on an artificial intelligence planning model; identifying the page to obtain a page fragment table; driving the page to scroll according to a set scrolling step size based on the page fragment table, and recording the scrolling to obtain a transit record table; associating page fragments determined to be continuous segments to obtain a same-body linked list; filtering objects based on the target description sheet, transit record table, and same-body linked list to obtain a same-object positioning table; obtaining an operation landing point table based on the same-object positioning table and same-body linked list, and determining the target action position; determining the state region boundary to obtain a state region table; and performing consistency verification to obtain the verification result. This application can improve the stability of page positioning and verification.

This invention discloses a hierarchical reinforcement learning motion planning and control method for legged robots in sparse terrain. It extracts semantically rich terrain features from elevation maps using a multi-scale perceptual encoder. These terrain features, along with the robot's real-time state and target commands, serve as input to a conditional denoising network. This network models landing point planning as a parallel, progressive denoising process, generating a sequence of robot landing points. During this process, an inverse kinematics feasibility verification layer evaluates the kinematic reachability of candidate landing points in real time, thus determining the planned landing point sequence. Based on the planned landing point sequence and the robot's real-time state, robust joint motion commands are output using reinforcement learning to control the legged robot's movements. This invention effectively solves the problems of short-sighted planning, low computational efficiency, and poor robustness in traditional methods in discontinuous, high-elevation, sparse terrain, achieving highly dynamic and stable motion of legged robots in complex environments.

This utility model discloses a rammed earth machine for building construction, relating to the field of building construction technology. The rammed earth machine includes a frame, a traction motor, and a U-shaped transmission plate. A support plate is fixedly installed on the top of the frame; a ramming plate is mounted on the support plate, and the traction motor drives the ramming plate to rise. Through the setting of a guide stabilizing rod, the ramming plate can be guided during its descent, thus determining the landing point of the ramming plate. This not only ensures the ramming plate lands accurately on the ramming location but also prevents the ramming plate from shifting and causing injury to workers, thereby improving the practicality of the device. Furthermore, the drive motor can move an L-shaped lifting plate, which, after movement, allows the ramming plate to be lifted via a U-shaped connecting plate. This design reduces worker involvement, lowers labor intensity, and further improves the safety of the device.

The application discloses an aircraft precision landing method and device, relates to the technical field of aircrafts, and is used for realizing the precision landing of an aircraft, aiming at the problem of large error of a currently used navigation technology, and providing an aircraft precision landing method, which realizes the rough positioning of the aircraft for a landing point by acquiring position information of a parking apron, has low positioning accuracy requirement, and enables the aircraft to fly to a preset range; the aircraft projects a light beam on a surface where the parking apron is located, so that the parking apron can receive the light beam projected by the aircraft; after the parking apron receives the light beam projected by the aircraft, the distance and the relative direction of the aircraft and the parking apron are judged by acquiring the brightness and the angle information of the light beam, so that the precision positioning between the aircraft and the parking apron is realized, and the problems of the poor positioning accuracy of the current civil navigation technology, the high implementation cost of high-precision positioning equipment and the like are not influenced.