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1. (WO2018120351) METHOD AND DEVICE FOR POSITIONING UNMANNED AERIAL VEHICLE

Pub. No.:    WO/2018/120351    International Application No.:    PCT/CN2017/072478
Publication Date: Fri Jul 06 01:59:59 CEST 2018 International Filing Date: Wed Jan 25 00:59:59 CET 2017
IPC: G01C 11/00
G05D 1/00
Applicants: AUTEL ROBOTICS CO., LTD.
深圳市道通智能航空技术有限公司
AUTEL HUNAN CO.,LTD.
湖南省道通科技有限公司
Inventors: LEI, Zhihui
雷志辉
YANG, Kaibin
杨凯斌
BIAN, Yijie
卞一杰
JIA, Ning
贾宁
Title: METHOD AND DEVICE FOR POSITIONING UNMANNED AERIAL VEHICLE
Abstract:
A method and device for positioning an unmanned aerial vehicle. The method comprises: when a hovering operation is determined to be performed, acquiring a first ground image (S101), wherein the first ground image is used as a reference image; acquiring a second ground image at a current time (S102); and determining, according to the first ground image and the second ground image, a current position of an unmanned aerial vehicle (S103). The first ground image is acquired, during the hovering operation of the unmanned aerial vehicle, to be the reference image, and the second ground image at the current time has identical or near identical external environment influence factors with respect to the first ground image. Therefore, determining a current position of the unmanned aerial vehicle according to the first ground image and the second ground image reduces systematic errors introduced by a resolution difference caused by external factors, and improves positioning precision during hovering of the unmanned aerial vehicle.