Citation

Han P, Zhao Y. China Saf. Sci. J. 2020; 30(1): 142-147.

Copyright

(Copyright © 2020, China Occupational Safety and Health Association, Publisher Gai Xue bao)

DOI

10.16265/j.cnki.issn1003-3033.2020.01.022

PMID

unavailable

Abstract

In order to study impacts of different flight environments on UAV ground impact risks, it is necessary to analyze boundary conditions of UAV ground impact accidents under different flight operation conditions considering mission conditions and environment scenarios of UAV have a great impact on flight safety. Firstly, flight environment factors affecting UAV safety were analyzed, in which ground population density and shelter protection capability of various mission scenarios were considered and environment influencing factors were introduced to analyze meteorological, geographical and communication elements. Then, an evaluation model of UAV ground impact accidents was established with number of casualties per flight hour as evaluating indicators. Finally, risk parameters of various UAVs in different mission and environmental scenarios were calculated and compared. The results show that meteorological, terrain and communication factors of flight environment have a great impact on UAV ground impact risk. With the deterioration of environment, number of casualties per flight hour of UAV operation would change significantly with an increase rate from 10-8 to 10-5 © 2019 China Safety Science Journal

Language: zh