31 results about "Aircraft routing" patented technology

The invention relates to the technical field of aircraft route design, in particular to a Beidou grid-based low-altitude aircraft three-dimensional route design method, which comprises the following steps of: performing airspace type subdivision processing on a target flight area in a flight space model; judging the airspace available state of the airspace type; dividing an initial route coverage space of the target low-altitude aircraft; carrying out conflict investigation on the airspace use condition in the initial route range; when the conflict checking result is a conflict-free state, performing arc fitting on the air route space trajectory of the target low-altitude aircraft; and verifying the fitted route trajectory, and if the current airspace state is changed, adjusting the fitted route trajectory to obtain a three-dimensional route design scheme. According to the method, the airline can be planned by combining airspace type division and a dynamic available state, the airline can be changed and adjusted according to the real-time airspace, and the flexibility and safety of airline planning are improved.

The invention discloses a low-altitude aircraft route real-time meteorological risk early warning method and system, and belongs to the technical field of flight risk identification. The method is used for solving the technical problem that the missing report rate of sudden weather phenomena such as wind shear and micro downburst in an existing scheme is high. The three-dimensional wind shear and turbulence intensity is identified through bimodal cooperation, and the limitation of traditional single-parameter identification is broken through; through independent modeling of normal rigidity and tangential damping, the risk characteristics of vertical airflow and horizontal wind shear are decoupled, so that the risk identification precision can be effectively improved; a height self-adaptive threshold value can effectively reduce the false alarm rate of a low-altitude complex terrain scene; according to the nonlinear attenuation control, through a tanh function, a dynamic response that the larger the risk overshoot is, the stronger the control force is is, and the risk energy propagation depth can be effectively reduced; by using the amplification effect of fractional differential on weak disturbance, the detection rate of risk abrupt change can be effectively improved, and missing report of sudden risks is avoided.

The present application relates to the technical field of aviation meteorological support, and provides a meteorological display and alarm method, system, device and medium for aircraft navigation, which comprises receiving an aircraft route plan and collecting numerical weather forecasts of each place at the takeoff time of the aircraft; extracting wind speed, temperature, relative humidity, liquid water content and cloud droplet particle number density, and calculating the horizontal visibility, aircraft icing index, total cloud cover and aircraft turbulence index at the forecast time through adaptive attenuation interpolation based on feature perception; constructing an information box and a floating box of the route points on the aircraft route map; and performing meteorological display and alarm for aircraft navigation through the information box and the floating box according to the aircraft route plan. The present application uses regional meteorological forecast results to form meteorological forecast results for flight routes, can intuitively display the comprehensive meteorology on the route and form an alarm prompt, reduces the risk of information omission, increases the safety margin, and reduces the meteorological information processing workload of flight support personnel.

The present disclosure relates to an electronic system for providing access to a useable, tailored database of selectable items for a user, e.g., user selectable routes entered by pilot users to utilize for flight planning and aircraft route guidance, and other related information from a remote processing center to a local unit over wireless, wire line, or telecommunications network or combination thereof. The disclosure more particularly relates, for example, to an electronic system including one or more remote processing centers and a plurality of local units, e.g., a desktop computer, laptop, tablet, cellular device, or mobile telephone unit, for providing to a pilot's local unit information of other pilot users from one or more databases, in particular, a pilot user's route with FAA identifiers (such as airports, VORs, NDBs, waypoints, reporting points, airways, etc.), waypoints, departure airport, destination airport, hazards, FAA VFR sectional and / or IFR airway map for guidance, pilot comments, and other information which has been calculated and / or stored at one or more remote processing centers in response to a query or selection request received from a local unit operated by an pilot user, for example.

The invention relates to a yaw judgment method and device for low-altitude aircraft course operation and a medium. According to the method, when a low-altitude aircraft flies along a course according to a plan, the vertical distance between the current position of the aircraft and the course is calculated in real time, and the vertical distance is compared with a preset yaw threshold value; when the vertical distance is larger than a yaw threshold value, it is judged that the aircraft is yawed, and yaw early warning and warning are conducted. Compared with the prior art, static data configuration and software dynamic calculation are combined, yaw judgment is carried out on the aircraft running along the course in the low-altitude airspace through a simple algorithm, switching of cruise segments is fully considered, and the problem that yaw judgment at the turning position is not accurate is solved.

The application discloses an aircraft route optimization scheduling processing method, device and system, and belongs to the low-altitude airspace transportation field, wherein the system comprises a preset route module, a demand response module, a plurality of manned automatic driving aircrafts, a centralized control and scheduling center, and the method comprises the following steps: presetting a plurality of routes according to the starting point, the ending point and a plurality of public airspaces along the way of the manned automatic driving aircraft; acquiring basic data of the manned automatic driving aircraft; receiving user demand; generating a demand response according to the basic data of the manned automatic driving aircraft, the preset route and the user demand; sending the demand response to the user; and according to the demand response, the manned automatic driving aircraft carries the user to complete the flight task specified in the demand response. Under the premise of meeting the basic service of customers and flight safety, the application maximizes the saving of passenger time and the operation cost of the manned automatic driving aircraft.

Computer implemented methods and systems construct and modify a schedule for an on-demand private aviation operator. Demand and supply information for one or more specific days in the future are obtained and used by a construction algorithm to construct a schedule for the one or more specific days that assigns respective aircraft to respective aircraft routes that include flight legs, assigns respective crew members to respective aircraft routes or flight legs thereof, to satisfy flight demands, while complying with constraints and achieving specified objective(s) of the construction algorithm. Thereafter, in response to receiving an indication of a change to the supply and / or demand information that warrants a modification to the schedule, an improvement algorithm is used to modify a portion of the schedule to address the change while complying with the constraints and achieving specified objective(s) of the improvement algorithm.

The invention relates to the technical field of flight control, and particularly provides an aircraft route planning method and device, a storage medium and electronic equipment, and the method can comprise the steps: screening candidate sub-graphs meeting a flight task from a pre-constructed route knowledge graph; wherein the candidate sub-graph comprises at least one corridor path; one corridor path represents one connected area; the route knowledge graph is constructed by taking a plurality of corridor paths of a flight space as entities and semantic relationships and entity feature vectors of the entities; calculating a relation score of each corridor path in the at least one corridor path; and determining a flight route for executing the flight task from the at least one corridor path according to the relation score of each corridor path. According to the embodiment of the invention, efficient low-altitude route planning can be realized for the aircraft.

The application relates to the technical field of aircraft route planning, in particular to an aircraft control method and system for preventing long-distance flight collision, which comprises the following steps: acquiring the offset distance of an aircraft from a set route at each moment during flight, and the measured distance between the aircraft and the nearest obstacle; obtaining the dynamic stability of the aircraft in each time interval; determining the long-term balance degree of the aircraft in each time interval based on the autocorrelation of the flight height of the aircraft at all moments in each time interval, the linear growth trend of the distance between the aircraft and the departure point in each time interval, and the fluctuation of the extreme value distribution of the flight speed of the aircraft at all moments in each time interval; correcting the Q value updating method in the deep Q network; and planning the route of the aircraft by using the corrected deep Q network. Thus, the long-distance flight collision risk of the aircraft is reduced.

The invention provides a rapid updating method and system for aviation bump recognition based on aircraft real-time detection and a storage medium, and the method comprises the steps: obtaining a flight route region of an aircraft, and dividing the flight route region into sub-regions; a thunderstorm index of weather and aircraft route data are collected in a flight route area of the aircraft; and utilizing the aircraft route data and the thunderstorm index to construct a clear sky turbulence distribution diagram and construct a cumulative bumping area distribution diagram for the sub-areas of the flight route area of the aircraft for correction. Through the clear sky turbulence distribution diagram and the cumulative bumping area distribution diagram, an aircraft driver can better drive the aircraft away from the bumping area.

The application provides a rapid updating method and system for aircraft bump identification based on real-time detection of an aircraft and a storage medium, and the method comprises the following steps: acquiring a flight route area of an aircraft, and dividing the flight route area into subareas; collecting a thunderstorm index of weather and aircraft route data of the aircraft in the flight route area; and correcting a clear air turbulence distribution map of the subareas of the flight route area of the aircraft and correcting a cumuliform bump area distribution map of the subareas of the flight route area of the aircraft by using the aircraft route data and the thunderstorm index. The clear air turbulence distribution map and the cumuliform bump area distribution map can enable the pilot to better drive the aircraft and keep away from the bump area.

The invention discloses an aviation communication navigation monitoring integrated test scene simulation method, which belongs to the technical field of aviation navigation, and comprises the following steps: S1, aircraft route simulation; s2, LDACS ground station position modeling is carried out; s3, simulating a transmission channel model between the aircraft and each LDACS ground station in a cruising stage; s4, circulating the step S3; s5, carrying a real-time simulation environment based on a GUI, and displaying the flight path of the aircraft, the position of the ground station, the distance, the power loss and the propagation time delay in real time; according to the aviation communication navigation monitoring integrated test scene simulation method, the flight path of an airplane in the air and the channel interaction process with an LDACS ground station can be reproduced in a laboratory environment, and a foundation is laid for an aviation communication navigation monitoring integrated research and development and test verification platform; and integration of aviation communication, navigation and monitoring is further realized.

The invention discloses a dual-aircraft cooperative detection route planning method for an unmanned aerial vehicle, and belongs to the technical field of aircraft route planning. Obtaining dual-computer initial parameters; based on the position information in the initial parameters, utilizing a Dubins algorithm to respectively calculate Dubins paths of the double machines from respective starting points to patrol starting points, and obtaining respective shortest Dubins paths of the double machines; the double-machine speed and maneuver are coordinated; the sectional acceleration of the two machines is coordinated; and according to the Dubins paths, the flight speeds and the accelerated speeds of the two aircrafts, performing dual-aircraft cooperative detection route planning. According to the invention, by introducing a speed and maneuver cooperation method, the two aircrafts can arrive at the patrol starting point at the same time under the condition that the initial positions and the heading directions are inconsistent; by designing a dual-aircraft segmented acceleration cooperation method, the unmanned aerial vehicles are enabled to have the same speed, the consistent course and the synchronous position after entering a patrol route, cooperative positioning of a target can be realized, and the problem that a traditional Dubins algorithm lacks speed adjustment and a time-space cooperation mechanism in a cooperative detection scene is solved.

The application discloses a method for determining isochronous points on an airplane route and a method for selecting a reserve landing reference point. The method comprises the following steps: obtaining the longitude and latitude coordinates of the starting point and the ending point of a to-be-flown flight section, and forming a flight section route represented by longitude and latitude coordinates based on the longitude and latitude coordinates; obtaining the longitude and latitude coordinates of a selected reserve first reference point and a reserve second reference point, and real-time wind force and wind direction information, and determining an isochronal line corresponding to the reserve first reference point and the reserve second reference point based on the longitude and latitude coordinates and the real-time wind force and wind direction information; and determining an isochronous point in each to-be-flown flight section contained in the airplane route based on the intersection of the isochronal line and the to-be-flown flight section. The method effectively solves the problem that the isochronous points determined by the existing method for determining isochronous points on an airplane route are not accurate enough, and the calculation process for determining the isochronous points is complex and cannot meet the requirement of quickly and accurately determining isochronous points in an emergency.

Systems and methods for dynamic flight path planning for aircraft within a nodal environment matrix including stacked mesh arrays of spatially defined nodes. An aircraft occupancy envelope around an aircraft operating within the nodal environment matrix may be determined based on information from connected flight systems and operators. A projected availability state of a node within the nodal environment matrix may be based on a predicted interaction of the aircraft occupancy envelope with the node, using a predicted trajectory of the first aircraft occupancy envelope. Dynamic flight path planning may be performed based on projected availability states of nodes.

The invention discloses a target low-altitude aircraft route planning method and system, and the method can actively recognize a limited number of target geographic grids with the highest information value at the initial stage of a task, namely based on the rapid analysis of an event site (such as a thermodynamic diagram generated by a monitoring video); afterwards, the targets are not balanced in coverage any more, but a fastest arrival path is planned and distributed for each high-value target point, it is ensured that the aircraft group can directly reach the most critical information blind area at the first time after taking off, initial response time is utilized, and instant maximization of information obtaining efficiency is achieved.

The invention relates to an aircraft yaw early warning method and system. The aircraft yaw early warning method comprises the steps that the type of an aircraft, the type of a task executed by the aircraft and aircraft channel information are acquired; obtaining the dynamic saturation of the airspace passed by the aircraft channel; based on the type of the aircraft, the type of the task executed by the aircraft and the channel information of the aircraft, obtaining a maximum offset radius without airspace constraint; based on the airspace constraint-free maximum offset radius and the dynamic saturation of the airspace passed by the aircraft channel, calculating the dynamic offset radius of the corresponding waypoint of the aircraft in the channel at the current moment; acquiring a preset waypoint of the aircraft at the current moment based on the aircraft channel information; calculating the linear distance between the actual position of the aircraft at the current moment and a preset waypoint; and the linear distance is compared with the dynamic offset radius, and if the linear distance is larger than the dynamic offset radius of the corresponding channel waypoint, yaw early warning is triggered. The flight safety of the low-altitude aircraft can be improved.

The invention discloses a method and device for evaluating meteorological risks on a low-altitude aircraft route, and belongs to the field of low-altitude economic meteorological safeguard.The method comprises the steps that the area where a target route is located is determined, and multi-angle photos containing space information are obtained through oblique photography of an unmanned aerial vehicle; carrying out digital modeling on the three-dimensional space layout of the terrain and the ground features of the region, setting an initial value condition, and simulating the near-ground low-altitude wind field by utilizing a CFD method; extracting wind field data of each grid, calculating regional low-altitude wind shear, calculating a low-altitude meteorological risk index caused by wind speed and wind shear of the region according to a preset risk assessment algorithm, and integrating and obtaining a whole-course meteorological risk index by combining with a course of a low-altitude aircraft passing through the region; a high-risk area is identified to support optimization of a route so as to avoid meteorological risks. According to the invention, more accurate dangerous area early warning is provided for the unmanned aerial vehicle, and a more scientific dynamic security solution is provided for unmanned aerial vehicle route planning in a complex environment.

The invention relates to an aircraft route planning method and device, computer equipment and a storage medium. The method comprises the following steps: acquiring an airspace grid obtained by dividing a target airspace; for each iteration process, taking the target grid selected in the previous iteration process as a current grid; determining an obstacle-free reference grid adjacent to the current grid according to the adjacency relationship between different airspace grids in the target airspace; selecting a target grid of the current iteration process from the reference grids of the current grid according to the reference flight distance of the reference grids corresponding to the current grid; and according to the target grid of the current iteration process, updating the planned flight path of the aircraft until the target grid of the current iteration process is a termination grid. By adopting the method, the planning efficiency of route planning can be effectively improved, redundant calculation is greatly reduced, and the rationality and feasibility of flight route planning are further improved.

The invention provides a manned aircraft and unmanned aerial vehicle cooperative flight early warning method and system, and relates to the technical field of aviation flight, and the method comprises the steps: obtaining a manned aircraft route path, scientifically dividing and distributing a task region, and constructing a clear task dependence graph to clarify the relation between each unmanned aerial vehicle and the task region; environment safety levels are accurately divided through a safety evaluation model by using unmanned aerial vehicle sampling data, and a reliable basis is provided for subsequent decision making; the task weight of the unmanned aerial vehicle is dynamically and flexibly adjusted based on the security level, and an effective task switching decision is realized by a switching value quantitative index; and finally, through real-time monitoring, redistribution of the unmanned aerial vehicle and continuous updating of the security level and early warning information, a set of autonomous cooperative network mechanism for cooperative flight early warning of the manned aerial vehicle and the unmanned aerial vehicle, which is continuously optimized from task starting to task ending and adapts to environment change, is formed, the early warning response speed and the resource utilization efficiency in a complex environment are remarkably improved, and the early warning efficiency is improved. And the safety of cooperative flight and the task completion quality are effectively improved.

The invention belongs to the field of aircraft route planning, and particularly relates to a low-altitude penetration route planning method based on an improved particle swarm algorithm. The method comprises the following steps: S1, constructing an air route planning environment model; s2, according to the air route planning environment model, an optimal flight path point is searched through an improved particle swarm algorithm; and S3, carrying out smoothing processing on the optimal track point to obtain an optimal track. According to the low-altitude penetration airway planning method based on the improved particle swarm optimization, low-altitude environment threats can be avoided in time, the optimal flight path is generated, and an aircraft is guided to quickly penetrate into a target area to execute tasks in a hidden mode according to the airway.

The invention discloses a low-altitude aircraft airway meteorological data acquisition and processing method, relates to the technical field of air traffic control systems, and is used for solving the problem of low data processing real-time performance in a traditional method. According to the invention, meteorological original data are collected in real time through a multi-modal sensor array, and position coordinates are combined for marking; preprocessing the data stream, including noise suppression, normalization and time sequence alignment; the multi-source fusion uses a dynamic weight distribution and sliding window technology; the anomaly detection is based on a dynamic threshold value, pattern matching and context analysis; building an ARIMA prediction model, and carrying out hierarchical prospective prediction and online optimization; and integrating the report, and outputting and triggering feedback through a low-latency UDP protocol. According to the method, the end-to-end delay time is shortened, the prediction accuracy is improved, the false alarm rate is reduced, and the low-altitude flight safety and efficiency are remarkably improved.

The application belongs to the technical field of aircraft route planning, and relates to a route replanning algorithm based on rudder surface fault online flight capability evaluation. The algorithm mainly comprises two parts. Firstly, the basic flight capability of the aircraft after damage and fault is evaluated online to obtain the basic flight performance of the aircraft after fault. Secondly, the evaluation result of the basic flight capability of the aircraft is applied to the A* route planning algorithm, so that the route is replanned under the condition of aircraft rudder surface structural damage and fault, and finally a new route that can be tracked after aircraft rudder surface damage or fault is obtained. At present, there is little research on online route planning of the aircraft considering the basic flight performance of the aircraft after the aircraft encounters rudder surface damage and fault. The algorithm provided by the application provides a new idea for whether the online route planning of the aircraft can be performed and the flight task can be continued after the aircraft rudder surface damage and fault.

A route acquisition process of acquiring a route, a weather risk acquisition process of acquiring a weather risk as three-dimensional information, a first display process of displaying, in plan view, at least each of the route and the weather risk together, and a second display process of displaying the route and the weather risk together on a cross section cut vertically along the route are executed.

This application relates to the field of flight control technology, specifically providing a method, apparatus, storage medium, and electronic device for aircraft route planning. The method may include: filtering candidate subgraphs that satisfy a flight mission from a pre-constructed route knowledge graph; wherein the candidate subgraph includes at least one corridor path; a corridor path represents a connected region; the route knowledge graph is constructed using multiple corridor paths in flight space as entities, along with the semantic relationships and entity feature vectors of the entities; calculating the relationship score of each corridor path; and determining the flight route for executing the flight mission from the at least one corridor path based on the relationship score of each corridor path. Embodiments of this application can enable efficient low-altitude route planning for aircraft.

Example embodiments are directed to generating an optimized network of flight paths and an operations volume around each of these flight paths. A network system creates a source network of paths, whereby the source network comprises a set of possible paths between two locations. The network system assigns a cost for traversing each edge of each path of the source network and aggregates the cost for traversing each edge of each path to obtain a cost for each path of the source network. Based on the cost for each path, the network system identifies a path having the lowest cost, whereby the path having the lowest cost is the optimized route between the two locations. The network system then generates an operations volume for the optimized route. The operations volume represents airspace surrounding the optimized route. The operations volume is transmitted to a further system for use.

The application provides an airplane route intelligent inspection operation system based on image recognition. The system comprises a data acquisition module, a video processing module, an image recognition module, an interactive terminal and a monitoring background. The data acquisition module acquires video images of the airplane route inspection operation process and transmits the video images to the video processing module in the processor in real time. Each frame of video image after coding and decoding processing is transmitted to the image recognition module. The image recognition module automatically identifies defects and faults of airplane equipment components in the inspection operation area, and missed inspection and illegal behaviors through a neural network image recognition analysis algorithm, and transmits the inspection video images and the image recognition analysis result data to the interactive terminal and the monitoring background in real time. The interactive terminal realizes voice broadcast reminding and detail viewing of the defects, missed inspection and illegal behaviors. The monitoring background realizes remote real-time monitoring of the inspection operation behavior and guidance of fault elimination operation, and builds an airplane route inspection operation information index database for backtracking analysis and query of the inspection process historical data.

The invention provides an aircraft route replaceable unit determination method based on maintainability and economy. The method comprises the following steps: S1, decomposing an aircraft according to function division to obtain a preliminary LRU undetermined item list; s2, carrying out qualitative evaluation by comprehensively considering the influence of each related factor in an aircraft design stage and an operation stage; s3, performing qualitative evaluation on the LRU undetermined items according to the evaluation key points of the influence factors; performing quantitative evaluation on the items passing the qualitative evaluation as candidate items of the LRU; s4, calculating the average repair time MTTR of the candidate items of the LRU; s5, carrying out direct maintenance cost DMC calculation on the candidate items of the LRU; s6, performing quantitative analysis on the LRU candidate items by taking MTTR and DMC as constraint conditions, performing evaluation by adopting a comprehensive weighing method, comprehensively considering results of qualitative analysis and quantitative analysis, and weighing the division of the LRU; and S7, forming an airplane LRU list through comprehensive weighing judgment. According to the method, the problems of unreasonable LRU division hierarchy and frequent and repeated subsequent change in the existing aircraft model design process are solved.

This invention relates to a method for optimizing urban traffic routes using electric vertical takeoff and landing (EVTOL) aircraft. The steps are as follows: establishing constraints; initializing a population of individuals within a specified spatial range, with each individual's coordinates representing a route; calculating the fitness of each individual; calculating the inertial mass of each individual; calculating the sum of forces acting on each individual in different directions and calculating the acceleration; updating the velocity and position of each individual; selecting and replacing individuals based on the constraints; determining the termination condition; if the maximum number of iterations is met, terminating the search and outputting the optimal solution as the route optimization scheme; using the variable parameters in the obtained optimal design scheme as the final tiltrotor aircraft route. This invention comprehensively considers the economy, route length, and safety of tiltrotor aircraft routes, making urban traffic using tiltrotor aircraft more efficient and convenient.

The invention discloses a method and system for generating an artificial influence weather operation scheme, and the method comprises the steps: obtaining the basic information of an aircraft route and the basic information of a ground operation point in response to a received artificial influence weather operation scheme generation instruction; acquiring a first operation parameter used for generating a flight operation scheme and a second operation parameter used for generating a ground operation scheme; configuring a first template by adopting the first operation parameter, and configuring a second template by adopting the second operation parameter; generating a flight operation scheme based on the basic information of the aircraft route and a configured first template; generating a ground operation scheme based on the basic information of the ground operation point and a configured second template; and obtaining an artificial influence weather operation scheme based on the flight operation scheme and the ground operation scheme. The method can automatically generate the artificial influence weather operation scheme, so that the manual operation amount is effectively reduced, and the intelligent degree is high.