US 11,884,406 B2
Parachute landing methods and systems for an unmanned aerial vehicle
Lung-Shun Shih, Huatan Township (TW); Fu-Kai Yang, Tainan (TW); Yi-Feng Cheng, Tainan (TW); Di-Yang Wang, Taipei City (TW); and Chien-Hsun Liao, Taichung (TW)
Assigned to GEOSAT Aerospace & Technology, Tainan (TW)
Filed by GEOSAT Aerospace & Technology, Tainan (TW)
Filed on Jan. 8, 2019, as Appl. No. 16/243,069.
Claims priority of provisional application 62/614,925, filed on Jan. 8, 2018.
Claims priority of provisional application 62/614,933, filed on Jan. 8, 2018.
Prior Publication US 2019/0210735 A1, Jul. 11, 2019
Int. Cl. G08G 5/02 (2006.01); B64D 17/62 (2006.01); G05D 1/00 (2006.01); G05D 1/12 (2006.01); B64C 39/02 (2023.01); G05D 1/02 (2020.01); B64U 101/30 (2023.01)
CPC B64D 17/62 (2013.01) [B64C 39/024 (2013.01); G05D 1/0011 (2013.01); G05D 1/0094 (2013.01); G05D 1/0202 (2013.01); G05D 1/12 (2013.01); B64U 2101/30 (2023.01); B64U 2201/104 (2023.01); B64U 2201/20 (2023.01)] 22 Claims
OG exemplary drawing
 
22. A system for unmanned aerial vehicle (UAV) parachute landing, the system comprising:
a detector configured to detect at least one of a flight speed, a wind speed, a wind direction, a position, a height, or a voltage of a UAV;
a memory storing instructions;
a processor configured to execute the instructions to cause the system to:
determine whether to open a parachute of the UAV when the UAV is at a low voltage greater than zero and equal to or lower than a predetermined voltage;
responsive to a determination to open the parachute of the UAV, stop a motor of the UAV that spins a propeller of the UAV,
wherein stopping the motor includes:
reducing a height of the UAV until the UAV reaches a predetermined height; and
stopping the motor of the UAV that spins the propeller of the UAV when the UAV reaches the predetermined height; and
open the parachute of the UAV after stopping the motor of the UAV for a predetermined period.