70 results about "Aircraft routing" patented technology

The invention discloses an expressway and airspace cooperative low-altitude aircraft route planning method, and relates to the field of path planning, and the method comprises the steps: optimizing the classification precision of each airspace hierarchy based on a decision tree algorithm and a Bayesian network; repulsive force field parameters are updated through a dynamic situation field updating mechanism; in each airspace level, calculating a gravitational field, a static repulsive force field and a dynamic repulsive force field of the expressway, and fusing to obtain a comprehensive potential field value of each airspace level; acquiring an initial path of an aircraft route by utilizing a greedy strategy and a priority rule and combining the comprehensive potential field value of the airspace level; and according to an artificial potential field local optimization algorithm and a dynamic conflict detection mechanism, adjusting the initial path of the aircraft route to obtain an aircraft route path. According to the invention, an artificial potential field method is combined, a layered collaborative planning algorithm is provided based on airspace ground collaborative potential field modeling, and efficient and safe navigation of the low-altitude aircraft is realized.

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 invention discloses a low-altitude aircraft airway meteorological data acquisition and processing method, and relates to the technical field of airway meteorological data acquisition, and the method comprises the following steps: obtaining a carrier phase observation value of a target satellite from a GNSS receiver, recording a corresponding timestamp, and carrying out the original turnover ambiguity resolution of the obtained carrier phase observation value; carrying out first-order differential processing on carrier phase observation values of the same satellite at two continuous time points, and constructing an instantaneous carrier phase variation sequence reflecting the phase change rate; according to the invention, through carrier phase disturbance feature extraction and deep learning multipath risk prediction, dynamic weight adjustment of multipath interference satellites is realized, the system anti-interference capability and the data processing robustness are improved, the space mismatching and meteorological misjudgment risks are significantly reduced, and the positioning precision and the track sensing reliability in a complex environment are guaranteed.

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 invention discloses a high-altitude wind field hourly forecasting circulation assimilation correction method for guaranteeing the safety of an air route of an aircraft, belongs to the field of aerospace meteorology, and solves the problem of how to improve the vertical layering fineness and resolution in a WRF mode forecasting result. Comprising the following steps: carrying out observation data preprocessing and quality control, and setting a background field error covariance and an observation error covariance; constructing a detection data assimilation scheme; judging weather conditions at an initial moment, and inputting observation data bound at a corresponding moment for assimilation to obtain an observation field; assimilating the observation field and the background field to generate an analysis field, and starting mode numerical forecasting by using the analysis field to obtain a high-altitude wind field hourly forecasting result; comparing with observation data, correcting and evaluating a high-altitude wind field hourly forecast result, and adjusting a detection data assimilation scheme to carry out cyclic assimilation correction until a forecast result meeting a preset standard of an aircraft route and an optimal detection data assimilation scheme are obtained; the accuracy of high-altitude wind forecasting is improved, and the safety of the air route of the aircraft is guaranteed.

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 embodiment of the invention discloses a method and device for determining route information, a storage medium and an aircraft, and relates to the technical field of aircraft route planning, and the method comprises the steps: obtaining a plurality of planned routes; determining turning time consumption of the aircraft at any waypoint according to the waypoint positions of any waypoint, the previous waypoint and the next waypoint for any waypoint between the starting point and the ending point in any planned route; determining action time consumption of the aircraft at any waypoint according to the navigation action; determining the corresponding leg time consumption according to the leg distance from any waypoint to the next waypoint; and according to all turning time consumption, action time consumption and leg time consumption in any planned route, determining route time consumption corresponding to any planned route so as to plan a preset navigation task. According to the scheme, more comprehensive and accurate route information estimation can be provided, meanwhile, the flight path can be better planned, the actual flight dynamics can be better considered, and route tasks can be executed more smoothly and efficiently.

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 present invention relates to the field of flight control technology, and particularly to a method for detecting conflicts in the collaborative operation of manned aircraft and unmanned aircraft in an urban scenario, including: a strategic-level conflict detection method for manned aircraft and unmanned aircraft. Before the flight activity of the manned aircraft, based on the static basic route information of the unmanned aircraft and the flight plan information of the manned aircraft, a minimum bounding box of the unmanned aircraft route and the manned aircraft flight plan is generated, and an R*-tree of the unmanned aircraft route is generated; retrieve whether there is a spatial overlap between the minimum bounding box MBB of the manned aircraft flight plan and the R*-tree of the unmanned aircraft route to determine the unmanned aircraft route affected by the manned aircraft flight plan; a tactical-level conflict detection method for manned aircraft and unmanned aircraft. During the flight activity of the manned aircraft, based on the spatial protection area of the manned aircraft and the basic static route information of the unmanned aircraft, it is calculated in real time whether there is a conflict between the spatial protection area of the manned aircraft and the unmanned aircraft route. The present invention can improve the operation efficiency of manned aircraft and unmanned aircraft in low-altitude airspace and avoid conflict risks.

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 present invention discloses a method for collecting and processing meteorological data for low-altitude aircraft routes, which relates to the technical field of route meteorological data collection and includes the following steps: obtaining carrier phase observations of target satellites from a GNSS receiver, recording corresponding timestamps, and performing original turnover ambiguity resolution on the obtained carrier phase observations; performing first-order difference processing on the carrier phase observations of the same satellite at two consecutive time points to construct a sequence of instantaneous carrier phase variation that reflects the phase change rate. The present invention realizes dynamic weight adjustment of multipath interference satellites through carrier phase disturbance feature extraction and deep learning multipath risk prediction, improves the system's anti-interference capability and data processing robustness, significantly reduces the risk of spatial mismatch and meteorological misjudgment, and ensures positioning accuracy and track perception reliability in complex environments.

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.

Aircraft guidance system and associated guidance method The present invention relates to a guidance system (10) for an aircraft comprising: - an imaging chain (14) configured to reconstruct an image of the external environment; - a surveillance chain (16) configured to detect obstacles on the route of the aircraft; - a radar module (12); - a management module (31) configured to control the operation of the radar module (12) between a surveillance mode and a mixed mode; - a post-processing module (32) configured to process reflected waves in order to transmit signals corresponding to imaging type waves to the imaging chain (14) and / or signals corresponding to surveillance type waves to the surveillance chain (16). Figure for abstract: Figure 1

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 present invention relates to an adaptive selection method for aircraft route reference points, belonging to the field of aircraft technology. Through an adaptive selection mechanism for route reference points, the distance of route reference points is adaptively adjusted according to the aircraft speed and track tracking error, so that the navigation control system has a good route tracking effect within a large flight speed and track tracking error range. The present invention introduces an adaptive selection mechanism for route reference points into the nonlinear navigation control law of the aircraft, avoiding the problem that the change in aircraft speed may cause the navigation instruction to be too large or too small, and can ensure that the aircraft can accurately track the reference route within a large flight speed range.

The present invention provides an intelligent analysis and processing method and system for aircraft line data. The intelligent analysis and processing method for aircraft line data includes the following steps: traversing the aircraft model data platform, obtaining a full-aircraft design line data version record report including newly added and version-changed design line data files; according to the full-aircraft design line data version record report, obtaining a code file corresponding to the newly added and version-changed design line data files; parsing and decoding the obtained code files corresponding to the newly added and version-changed design line data files, and the code files corresponding to the previously obtained design line data with unchanged versions, to generate full-aircraft line data information points; performing logical processing on the generated full-aircraft line data information points to generate a data list including the full-aircraft line data information points; and matching the generated data list, generating a line data module applicable to aviation standard specifications.

The present application relates to an air cargo recovery method, device, computer equipment and storage medium, wherein the method includes: initializing a short restricted main problem; in each iteration of columns and rows, solving the linear programming relaxation of the short restricted main problem to obtain the dual value of each constraint; generating aircraft routes and cargo itineraries in the subproblems corresponding to the short restricted main problem according to the dual value; updating the short restricted main problem based on the aircraft routes and cargo itineraries of negative simplified costs to perform the next iterative calculation; when the aircraft routes or cargo itineraries of negative simplified costs are no longer generated and the aircraft routes obtained by solving the short restricted main problem are not integer solutions, integer processing is performed on the aircraft routes that are not integer solutions to update the short restricted main problem; when the iteration of columns and rows is completed, the mixed integer main problem is solved by a solver to obtain the target aircraft routes and cargo itinerary solutions. The present application realizes the rapid generation of air cargo recovery solutions and reduces recovery costs.

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.