Flight conflict evaluation method based on index system

Abstract

The invention provides a flight conflict evaluation method based on an index system, wherein the method comprises the steps: a1, determining influence factors of flight conflict evaluation, and enabling each factor to correspond to a plurality of indexes; a2, based on the aircraft navigation metadata, calculating the conflict aircraft relative position and motion trend index of each time slice inthe flight conflict occurrence time period; a3, calculating a conflict controllability index based on the process information of conflict occurrence; a4, based on the airspace operation data when theconflict occurs, calculating airspace operation environment indexes; a5, processing the index result under each factor according to a formula, and calculating the weight of each influence factor through an entropy weight method; and a6, averaging the flight conflict scores of the time slices to obtain a final evaluation score of the event. According to the method, various factors influencing flight conflicts are comprehensively considered, the influence degree of each factor is defined, the deviation of qualitative judgment is reduced, more sufficient objective data is provided based on an aviation big data evaluation method, the evaluation method is simple and convenient, and a display result is visual; different conflict events can be quantitatively compared through score distribution, the universality of the same kind of events is found, and improvement measures are provided.

Description

technical field [0001] The invention relates to the technical field of air transportation, in particular to an evaluation method for flight conflicts based on an index system. Background technique [0002] Safety is one of the most important concerns in the field of air transport. Flight conflict usually means that two civil aircrafts are less than the specified separation standard in actual operation. Regarding the relevant regulations of the Civil Aviation Administration, although flight conflicts can be identified qualitatively, there is no intuitive and quantitative evaluation method for the severity of flight conflicts. At present, the Reich model, Event model, etc. are mainly used in domestic and foreign research. The aircraft is assumed to be a collision box, and the probability theory and other theoretical methods are used to evaluate the collision probability of two aircraft. Although it has certain reference significance for the flight conflict evaluation method, ...

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Problems solved by technology

At present, the Reich model, Event model, etc. are mainly used in domestic and foreign research. The aircraft is assumed to be a collision box, and the probability theory and other theoretical methods are used to evaluate the collision probability of two aircraft. The difference is that only the separation factor between two aircrafts is considered, and less consideration is given to the approaching trend between the two aircrafts and the busyness of the airspace when the conflict occurs. Therefore, it is necessary to propose an appropriate quantitative assessment method

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