42 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 invention relates to the technical field of aircraft route planning, in particular to an aircraft control method and system for preventing long-distance flight collision, and the method comprises the steps: obtaining the offset distance between an aircraft and a set route at each moment in the flight process, and the measurement distance between the aircraft and a 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 heights of the aircraft at all moments in each time interval and the linear growth trend of the distance between the aircraft and the starting point in each time interval in combination with the fluctuation condition of extreme value distribution in the flight speeds of the aircraft at all moments in the time interval; and correcting a Q value updating method in the depth Q network, and performing route planning on the aircraft by using the corrected depth Q network. Therefore, the long-distance flight collision risk of the aircraft is reduced.

The embodiment of the invention provides an unmanned aircraft lightning protection method and system and a medium, and the method comprises the steps: obtaining the route information of an aircraft, and collecting the historical weather information in a flight region corresponding to a route according to the route information; establishing a weather prediction model according to the historical weather information in the flight area corresponding to the route, and generating weather prediction information; cloud layer distribution in the flight area is analyzed according to the meteorological prediction information, and cloud layer parameter information is obtained; calculating space charge distribution in the flight area according to the cloud layer parameter information; generating a lightning protection strategy according to the space charge distribution; adjusting the flight route of the aircraft according to the lightning protection strategy; the meteorological prediction model is established to predict the weather on the course of the aircraft, cloud layer parameters are obtained in advance, the space charges in the flight area are detected in real time, intelligent lightning protection is performed according to the space charge quantity, and the flight safety of the aircraft is improved.

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 calculation method based on route decomposition, comprising the following steps: obtaining route point data and aircraft navigation data of each flight phase in a route; comparing the height difference between two adjacent route points with the size of the route segment division threshold to determine the route segment type; calculating the route distance and heading of the climbing segment / descending segment, and the actual distance required for climbing / descending to the height of the end route point; comparing the size of the two, inserting the revised point required for the actual distance on the corresponding heading of the climbing segment, or inserting the descending point required for the actual distance on the corresponding heading of the descending segment, to obtain the route point coordinates, cumulative time, cumulative distance and cumulative fuel consumption of the new route segment; counting the output data of the current flight phase, and the output data of all flight phases in the route, to obtain the route planning result. The application makes the route calculation adaptable to different types of aircrafts without the aircraft system, and improves the generality and flexibility of the calculation method.

The invention relates to the technical field of traffic checkpoint management, and provides an intelligent traffic automatic traffic checkpoint management method under low-altitude economy. Comprising the steps of using a multi-band radar and a photoelectric sensor to set a monitoring network to collect aircraft information, establishing an authority electronic fence under an identity authentication mechanism, checking license permission by means of a block chain, scheduling gate passing priorities according to a traffic flow prediction model, formulating a queuing sequence, and linking the ground and a low-altitude gate to cooperatively release. The technical problem of airspace congestion in a part of time periods caused by aircraft type difference and passing demands in different time periods is solved, and the purposes of establishing an aircraft identity authentication mechanism and an authority electronic fence, applying a traffic flow prediction model, combining aircraft multi-dimensional information and airspace load data, dynamically adjusting the gate passing priority, and improving the traffic flow prediction efficiency are achieved. The technical effects of reasonably determining an aircraft queuing sequence, planning an aircraft route and a ground traffic control strategy in advance, and improving the overall safety and passing efficiency of low-altitude and ground traffic are achieved.

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 discloses a kind of long-term characteristics acquisition methods of meteorological elements of low-altitude different height layer with ten-meter spatial resolution, belong to the meteorological environment evaluation field of low-altitude aircraft route. Steps are as follows: S1, obtain the long-term historical meteorological three-dimensional data of the low-altitude route area covered in the RuiTu forecasting system;S2, convert the terrain and building white film data into the shape of the underlying surface under the model, generate the grid of the calculation domain;S3, coupling forms RuiTu-PALM system;S4, using RuiTu-PALM system, carry out long-term three-dimensional numerical simulation of ten-meter precision historical meteorological elements, obtain low-altitude meteorological multi-year calculation data of different vertical height layers with ten-meter horizontal resolution;S5, enhance the meteorological characteristics, establish ten-meter precision low-altitude meteorological multi-year enhancement database.The application can achieve ten-meter high spatial resolution, and has long-term representativeness and universality, and can be used to guide the planning and optimization of various low-altitude aircraft routes.

The present invention discloses a method for detecting and quickly resolving aircraft route conflicts under a given road network structure. The method can be based on the given road network structure, through a consistent spatiotemporal analysis method, taking into account the constraints within the road network, and establishing a conflict detection model from several aspects such as same-direction pursuit, reverse intersection, and channel saturation, thereby achieving the qualitative detection of conflicts between multiple aircraft routes; and based on the conflict detection results, a conflict tree is constructed, and through a Monte Carlo tree search and focused branch reduction method, a feasible solution for the route conflict resolution adjustment scheme is searched, thereby achieving the generation of conflict-free route adjustments for multiple aircraft. The present invention detects the routes planned between aircraft, discovers possible collision risks in advance, and provides a fast and feasible route adjustment scheme to resolve conflict risks, thereby achieving conflict-free route planning for a large number of aerial aircraft under a given road network structure.

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.

The invention discloses a method for acquiring long-term characteristics of meteorological elements of different low-altitude height layers with ten-meter-level spatial resolution, and belongs to the field of meteorological environment evaluation of low-altitude aircraft routes. The method comprises the following steps: S1, acquiring long-term historical meteorological three-dimensional data covering a low-altitude route area in a turbo forecasting system; s2, converting terrain and building white film data into a model underlying surface shape bottom surface, and generating a computational domain grid; s3, coupling to form a turbo-PALM system; s4, performing long-term three-dimensional numerical simulation of historical meteorological elements with ten-meter precision by using a turbo-PALM system, and obtaining low-altitude meteorological multi-year calculation data of different vertical height layers with ten-meter horizontal resolution; and S5, enhancement of meteorological characteristics is carried out, and a low-altitude meteorological multi-year enhancement database with ten-meter precision is established. The method can achieve ten-meter-level high spatial resolution, has long-term representativeness and universality, and can be used for guiding planning and optimization of various low-altitude aircraft routes.

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 JTS-based aircraft route collision detection method and system. The method comprises the following steps: converting original aircraft route data into geometric object format data which can be processed by a JTS; creating at least one current aircraft route according to the geometric object format data, and performing geometric intersection operation on the current aircraft route and a no-fly zone through JTS to determine whether each current aircraft route is intersected with the boundary of the no-fly zone; and if not, carrying out collision verification on each current aircraft route and the existing route to obtain a collision verification result, and when the collision verification result meets all route collision verification rules, considering that the current aircraft route is a safe route. According to the method, the flight route of the aircraft can be generated based on the JTS, and whether the flight route is collided or not is further verified based on the JTS, so that the accuracy of collision detection and the collision verification efficiency are greatly 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 present invention discloses a method and system for measuring the center of gravity of an aircraft. The method comprises the following steps: simultaneously weighing the weights of three landing wheels of an aircraft on the same horizontal plane, taking the sum of the weights of the three landing wheels as the total weight of the aircraft; then selecting a reference point in front of the aircraft nose and a surface perpendicular to the aircraft flight path as the reference plane, taking the aircraft flight path as the positive direction of the X-axis to establish spatial rectangular coordinates; taking a first horizontal measurement point on the aircraft structural horizontal line at the rear end of a rear landing gear axle, and taking a second horizontal measurement point on the aircraft structural horizontal line between the front landing gear axle and the rear landing gear axle; calculating the distance from the center of gravity of the aircraft to the measurement reference plane in the X-axis direction based on the angle between the aircraft structural horizontal line and the ground horizontal line and the theoretical center of gravity of the aircraft, and obtaining the center of gravity of the aircraft on the X-axis line. The method can quickly determine the center of gravity of the aircraft, effectively solving the problem of large errors in the process of measuring the center of gravity of the aircraft in the existing methods, and the method is applicable to the accurate measurement of the center of gravity of various aircraft models.

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.