公开(公告)号：US20220163978A1

公开(公告)日：2022-05-26

申请号：US17438131

申请日：2020-03-09

申请人： Chang Mo MOON ,  YONGBEEAT, INC. ,  CHANGINAVIATION CO., LTD.

发明人： Chang Mo MOON ,  Ji Ho MOON ,  Sung Su Kim

IPC分类号： G05D1/08 ,  B64D27/02 ,  B64D27/24 ,  B64C29/00 ,  B64C27/54 ,  B60L58/10 ,  B60L50/60 ,  B64D45/00

摘要： A vertical take-off and landing aircraft using a hybrid electric propulsion system, according to an embodiment of the present invention, includes: a first control step (S1) of changing a destination when an engine (10), a power generator (20), an engine control unit (30), a power management device (40), a control unit (50), a battery management system (60), a main battery (62) and the like malfunction, thereby causing a normal flight to be difficult; a second control step (S2) of performing control so that an aerial vehicle (1) glides to a point (T), at which same has entered a first space (CEP-1) required for landing or a wider second space (CEP-2) considered safe, and maintains lift and has minimized flight air resistance after passing through the point (T); a third control step (S3) of performing control so that lift is increased and performing control so that a nose cone is switched into an upward direction; and a fourth control step (S4) of performing control so that lift is gradually reduced, and controlling a second variable-pitch control device (122) so that thrust does not act on the aerial vehicle at the moment the aerial vehicle lands, and thus the present invention can vertically land while minimizing impact to be applied to the aerial vehicle.

公开(公告)号：US20220258852A1

公开(公告)日：2022-08-18

申请号：US17627371

申请日：2020-06-26

申请人： CHANGINAVIATION CO., LTD.

发明人： Chang Mo MOON ,  Ji Ho MOON

IPC分类号： B64C15/14 ,  B64C21/04 ,  B05B1/14 ,  B05B9/04

摘要： An aircraft controlled by compressed air according to an embodiment of the present invention comprises: a fuselage (10) having main wings (20) on both sides thereof; a first nozzle (12) mounted to the roof of the fuselage (10); second nozzles (22) mounted on the top surfaces of the main wings (20); a first tank (31) disposed in the fuselage (10) or the main wings (20) and storing compressed air; and a main control valve (40) for controlling the compressed air so that the compressed air is provided to the first nozzle (12) or the second nozzles (22).

公开(公告)号：US20210387723A1

公开(公告)日：2021-12-16

申请号：US17284776

申请日：2019-10-29

申请人： CHANGINAVIATION CO., LTD

发明人： Chang Mo MOON ,  Ji Ho MOON

IPC分类号： B64C29/00 ,  B64D27/24 ,  B64D27/12 ,  B64C11/30 ,  B64D31/00 ,  B64D35/04 ,  B64D35/08

摘要： Disclosed is a book recommendation method utilizing similarity between books. Provided according to one aspect of the present invention is the book recommendation method on the basis of similarity between books, including the steps of: (1) generating, by a book recommendation server, a story flow emotion graph for each of a plurality of books; (2) calculating, by the book recommendation server, similarity between a story flow emotion graph of a first book and a story flow emotion graph of a second book; and (3) outputting, by the book recommendation server, according to the similarity, at least one similar book similar to the first book.