A Flight Conflict Evaluation Method Based on Index System

Abstract

The present invention provides a flight conflict evaluation method based on an index system. The method includes: a1: clarifying the influencing factors of flight conflict evaluation, and each factor corresponds to multiple indexes; a2: calculating the flight conflict occurrence period based on aircraft navigation metadata The relative position and movement trend indicators of the conflicting aircraft in each time slice; a3: Calculate the conflict controllability index based on the process information of the conflict; a4: Calculate the airspace operating environment index based on the airspace operation data when the conflict occurred; a5: Based on The formula processes the index results under each factor, and calculates the weight of each influencing factor through the entropy weight method; a6: average the flight conflict scores of the time slice to obtain the final evaluation score of the event. This method comprehensively considers various factors that affect flight conflicts, clarifies the degree of influence of each factor, reduces the deviation of qualitative judgment, and provides more sufficient objective data based on the evaluation method of aviation big data. The evaluation method is simple and the results are displayed Intuitive; can use the distribution of scores to quantify and compare different conflict events, find the commonality of similar events, and propose improvement measures.

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, ...

AI Technical Summary

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

Images