Title:
CONTROL METHOD FOR MAPPING CAMERA, MAPPING CAMERA, UNMANNED AERIAL VEHICLE, AND MAPPING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2022/077236
Kind Code:
A1
Abstract:
A control method for a mapping camera (412, 50), the mapping camera (412, 50), an unmanned aerial vehicle (41), and a mapping system. The mapping camera (412, 50) is mounted to the unmanned aerial vehicle (41). The method comprises: S202, in the process of the unmanned aerial vehicle (41) performing a mapping operation according to a target route, determining a target position where a focusing lens group of a lens (51) of the mapping camera (412, 50) is located when the lens (51) is focused to infinity; and S204, adjusting the focusing lens group to the target position and performing focusing locking, so as to control the mapping camera (412, 50) to perform image acquisition in a mapping area during the flight of the unmanned aerial vehicle (41) according to the target route. Since the focusing lens group of the mapping camera (412, 50) is not physically locked, in the process of performing a mapping task, the target position where the focusing lens group is located when the lens (51) is focused to infinity in the current operating environment can be automatically determined, and the position of the focusing lens group is adjusted, so that the problem that acquired images are blurred due to the drift of the focal position of the mapping camera (412, 50) caused by temperature change can be solved.
Inventors:
WU LIXIN (CN)
ZHU LINGLONG (CN)
HE GANG (CN)
FANG ZHAOHUI (CN)
HUANG ZHENHAO (CN)
ZHU LINGLONG (CN)
HE GANG (CN)
FANG ZHAOHUI (CN)
HUANG ZHENHAO (CN)
Application Number:
PCT/CN2020/120703
Publication Date:
April 21, 2022
Filing Date:
October 13, 2020
Export Citation:
Assignee:
SZ DJI TECHNOLOGY CO LTD (CN)
International Classes:
G01S17/88; G01C11/00
Foreign References:
| CN104730539A | 2015-06-24 | |||
| CN204556829U | 2015-08-12 | |||
| CN203704924U | 2014-07-09 | |||
| US4377744A | 1983-03-22 | |||
| CN108141522A | 2018-06-08 | |||
| CN109905604A | 2019-06-18 |
Attorney, Agent or Firm:
BEIJING BESTIPR INTELLECTUAL PROPERTY LAW CORPORATION (CN)
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