Data modeling and information extraction method for flight route

Abstract

The invention discloses a data modeling and information extraction method for a flight route. The data modeling and information extraction method specifically comprises the following steps: S1, dividing the flight route into a plurality of flight programs; S2, extracting necessary information in each flight program; and S3, sequentially filling the flight program array with the necessary information corresponding to each flight program based on the appearing sequence of the flight programs in the flight route to form a flight program array. The data modeling and information extraction method divides the flight route into a plurality of flight programs, only stores the necessary information according to the program type instead of storing the whole route data, and restores the complete information during use, so that the route data volume is reduced, and the time required for writing / reading the route file in the memory is shortened, and the route data transmission and synchronization between different systems of the same airplane are facilitated.

Description

technical field [0001] The invention belongs to the technical field of flight data processing, and more specifically, the invention relates to a method for data modeling and information extraction of flight routes. Background technique [0002] The flight route is the route taken by the aircraft during the whole process of taking off from the origin airport to landing at the destination airport. From the domain point of view, a flight path is essentially a collection of interrelated data, which contains detailed path information from the starting point to the ending point. figure 1 It is a schematic diagram of the life cycle of the flight route. The flight management system loads the navigation data from the external navigation database file (B101) into the memory. The navigation database (B102) contains all published airport data, navigation equipment data, runway data and other navigation data. . The pilot selects navigation data such as relevant navigation anchor points...

AI Technical Summary

Problems solved by technology

The direct storage of flight route data has three disadvantages: first, the route information needs to be synchronized between different systems, the larger the data volume and the more complex the information, the less conducive to mutual data transmission and synchronization; the second is file I / O operations, especially The writing operation of the file will take up a lot of time, and the larger the amount of data, the longer the running time of the process will be, which is not conducive to the real-time performance optimization of the system; the third is to occupy a large memory space and consume computing resources, while the memory is An extremely valuable resource whose use must be minimized and rationalized as much as possible

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