10 results about "Navigational database" patented technology

A flight analytics system may receive, from a flight recorder of an aircraft, flight data corresponding to one or more routes flown by the aircraft. The flight analytics system may obtain, based on a downlink message sent by the aircraft in-flight, version information of a first navigation database (NavDB) used in-flight by a flight management system of the aircraft while flying the one or more routes. The flight analytics system may determine, based on the version information of the first NavDB, a second NavDB that matches the first NavDB. The flight analytics system may perform, using the second NavDB, flight data analysis on the flight data. The flight analytics system may output, based on the flight data analysis, flight analytics data for the one or more routes flown by the aircraft.

The embodiment of the invention relates to the technical field of flight management, and provides a flight plan management method and device for a flight management system, and the method comprises the steps: analyzing a navigation database file of a target protocol, and writing the analyzed navigation data into a target database, the navigation data including airports, waypoints, routes and flight program data; a flight plan creating instruction input by a target user is received through CDU simulation unit software, and the flight plan creating instruction at least comprises a takeoff airport, a target airport and waypoint numbers or route names; based on the flight plan creation instruction, extracting target data from a target database, and generating a flight plan; receiving and responding to an activation instruction input by the target user, and activating the flight plan; and controlling the target flight trainer to execute the activated flight plan based on the activated flight plan. The creation, editing, activation and dynamic over-point calculation of the flight plan can be completely reproduced in the trainer through simulation software, and the cost is reduced.

The embodiment of the invention relates to the technical field of flight management, and provides a flight plan waypoint management method and device for a flight management system, and the method comprises the steps: obtaining and analyzing a navigation database file which accords with a target protocol, writing the analyzed navigation data into a target database, and creating a waypoint data table set; a waypoint operation instruction triggered by a target user is received, and the waypoint operation instruction is input through pre-constructed CDU simulation unit software; and based on the waypoint operation instruction, querying the waypoint data table set through flight management simulation software, executing waypoint operation processing, and returning an operation processing result to the CDU simulation unit software in real time for picture refreshing. Therefore, the simulation software can completely reproduce the creation, editing and deletion operation control of the flight plan waypoint in the trainer, and the cost is reduced.

This invention discloses a vehicle dispatching method and apparatus. After acquiring the location data of each parking spot in the current city at a first moment, this invention determines target drop-off and target pick-up points among each parking spot based on the location data. It then combines and filters these target drop-off and pick-up points to obtain a first preset number of target drop-off / pick-up pairs. Next, it queries a pre-created navigation database to determine the navigation data for each target drop-off / pick-up pair, and finally generates a vehicle dispatching task based on the navigation data of each target drop-off / pick-up pair. The navigation database stores navigation data for multiple estimated drop-off / pick-up pairs. These estimated drop-off / pick-up pairs are those estimated to have vehicle dispatching value at a second moment, earlier than the first moment. Therefore, this invention can reduce the navigation calculation pressure during the vehicle dispatching task generation process, thereby improving the efficiency and stability of vehicle dispatching.

A system and method for enhancing pilot situational awareness stores to an onboard navigational database hybrid approach procedure sets, e.g., approaches to a landing or other waypoint wherein a first portion of the approach is performed or executed according to a first approach procedure set (e.g., to a final approach fix (FAF) or other waypoint), and a second portion of the approach (e.g., once the FAF / waypoint is sequenced) is performed / executed according to a different approach procedure set, e.g., an RNP AR-to-LPV hybrid approach. Flight displays provide textual approach indicators, e.g., when the hybrid approach is loaded and arming of the first segment is upcoming, or when the first and second segments are respectively armed and activated (e.g., when the necessary conditions are satisfied). Hybrid approach indicators may alternatively or additionally be provided via flight mode annunciators (FMA) of the flight display.

The invention relates to a navigation system (100) for a vehicle and a method for navigating a vehicle.The navigation system (100) comprises a navigation database (101) which includes and provides data on a road network and attribute and context information on locations, objects and their environment in the road network; a system (102) for determining a current vehicle configuration and current environment data, wherein the system (102) is further executed and configured to determine, based on the determined vehicle configuration and the environment data, a purpose for a journey of the vehicle with this vehicle configuration; a unit (103) which is executed and configured to determine, based on the determined purpose of the journey and the data of the navigation database, a destination appropriate to the purpose and a route to the destination; and an output unit (104) which is executed and configured to output the destination and the route as a suggestion.

The application provides a star map recognition method based on radial and ring angular distance, and the main steps include selection of a star table and construction of a navigation database, construction of an observation star radial and ring angular distance mode feature, initial matching of a radial mode, further matching of a ring angular distance mode, and link angular distance verification. The method realizes one-to-one identification of star points in a star map with large density and multiple pseudo stars, still maintains a high recognition rate when large noise interference and edge field loss are encountered, and makes the correct rate of star map recognition reach 98.7%, and has strong robustness to pseudo stars and background noise interference.

The application discloses a building safety evaluation method and system based on an aircraft radar guide area, and the method comprises the following steps: obtaining flight radar guide area data from an ARINC424 navigation database; expressing airport geographic basic data to a GIS tool system according to longitude and latitude information, extracting radar guide area expression from the flight radar guide area data to the GIS tool system, and setting an obstacle control parameter corresponding to each radar sector of the radar guide area; collecting building data to be built and expressing the building data to the GIS tool system according to longitude and latitude information, comparing the design height of the building to be built with the height limiting parameter corresponding to the radar sector, and calculating overheight data. Through the standardized, automated, efficient and rapid building evaluation of the automatic evaluation logic rule, the building to be built which is overheight and affects the safety of the radar guide can be quickly and accurately identified, and an overheight warning is given, thereby providing strong technical support for the safety of the airport clearance.

The invention relates to an aircraft flight key time identification method, device, equipment and program product. The method comprises the following steps: acquiring a unit task book of an aircraft, and extracting an approaching type from the unit task book; determining a runway number for landing of the aircraft, and generating a combination of the runway number and the approach type; searching an approach program identification code matched with the combination in a navigation database, and determining a final approach point matched with the approach program identification code from the navigation database; and acquiring flight data of an aircraft, and determining a target moment when the aircraft passes through the final approach point according to the flight data and the final approach point. By adopting the method, the recognition accuracy of the moment when the aircraft passes through the final approach point can be improved.