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Feature recognition method for circular circling in track

A feature recognition and circular technology, applied in scene recognition, character and pattern recognition, instruments, etc., can solve the problems of increasing the workload of air traffic controllers, affecting flight efficiency and flight regularity, so as to avoid manual recording and improve Operational efficiency and workload reduction effects

Active Publication Date: 2020-08-04
CIVIL AVIATION UNIV OF CHINA
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0004] The circling and waiting procedure ensures flight safety, but at the same time it also delays the air traffic process, affecting flight efficiency and flight regularity
The air traffic control units in all regions have carried out the recording work of circling and waiting events, which has increased the workload of air traffic controllers

Method used

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  • Feature recognition method for circular circling in track
  • Feature recognition method for circular circling in track
  • Feature recognition method for circular circling in track

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Experimental program
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Embodiment Construction

[0057] The present invention will be further described below in conjunction with drawings and embodiments.

[0058] Specific steps are as follows:

[0059] 1. Input track

[0060] Enter the real trajectory data of a domestic flight arriving on August 17, 2019.

[0061] The trajectory approaches from northeast to southwest, including straight flight, left turn, right turn and a circular circle. It has various flight characteristics and is general, such as figure 2 as shown ( figure 2 The abscissa represents longitude, and the ordinate represents latitude). The trajectory data is shown in Table 1:

[0062] Table 1 Trajectory data

[0063]

[0064]

[0065]

[0066]

[0067] Note: The format of the recording time is year yyyy month mm day dd hour hh minute mm second ss, usually every 8-10 seconds.

[0068] 2. Setting parameters

[0069] 1. Threshold for entering a turn: It can be seen from Table 1 that when the aircraft is flying in a straight line, the heading...

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Abstract

The invention discloses a feature recognition method for circular circling in a track. According to civil aircraft air traffic track data recorded by an air traffic control secondary radar, course information of each track is analyzed in sequence, and a method for automatically identifying circular circling characteristics in the track is provided. The identified circular circling features comprise a circling starting track, a circling ending track, circling waiting time and circling turns. Compared with an existing method, the method has the advantages that by adjusting the four custom parameters, the method is suitable for the situation that low-quality data such as noise tracks and recording errors exist in the tracks, and robustness is high; and secondly, the method realizes automaticidentification of the circular circling characteristics in the trajectory data, avoids manual recording in a traditional mode, effectively reduces the workload of air traffic controllers, and improvesthe operation efficiency.

Description

technical field [0001] The invention relates to data mining in traffic management in civil aviation, in particular to a feature recognition method for circular circles in a trajectory. Background technique [0002] In air traffic control work, in order to ensure sufficient separation between the front and rear civil aviation aircraft, the controller often directs the following aircraft to circle and wait. Specific reasons for circling and waiting generally include flow control, airports, fuel dumps, weather, airspace, military activities, and special circumstances. One of the common hovering waits is the circular hovering. [0003] In the mass surveillance trajectory data of civil aviation aircraft, the number of circling and waiting trajectories is very small, and compared with the general trajectory which is usually composed of straight lines and turns, the characteristics are significantly different, which belongs to abnormal trajectories. However, the research on abnor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06K9/46
CPCG06V20/13G06V10/40G06V10/422
Inventor 孙石磊王超
Owner CIVIL AVIATION UNIV OF CHINA
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