Citation

Xiang Z, Zhang W, Zhang W. China Saf. Sci. J. 2019; 29(8): 151-156.

Copyright

(Copyright © 2019, China Occupational Safety and Health Association, Publisher Gai Xue bao)

DOI

10.16265/j.cnki.issn1003-3033.2019.08.024

PMID

unavailable

Abstract

This study is conducted to improve flight safety under thunderstorm weather, reduce controllers' workload of guiding aircrafts to avoid thunderstorms with radar so as to prevent flight conflicts as well as to reduce the number of aircraft diversions during thunderstorms. Firstly, the coded airspace information matrix was constructed, the thunderstorm danger zone was described by rasterization and the security threats caused by the zone to the aircraft were clarified. Then, the diversion route planning model for two aircrafts which encounter conflicts and need to avoid the thunderstorm danger zone was proposed and the constraints were confirmed. Finally, the artificial potential field method was introduced to improve the heuristic information factors in traditional ant colony algorithm further to improve the effectiveness of model route search. The results show that the model can be used to obtain a simulation map of the diversion route for conflict avoidance in block, banded and scattered danger zones. The planned route enables two aircrafts to achieve conflict avoidance with viable measures. © 2019 China Safety Science Journal

Language: zh