The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 20, 2018
Filed:
Dec. 29, 2016
Zerotech (Shenzhen) Intelligence Robot Co., Ltd., Shenzhen, CN;
Qing Pu, Beijing, CN;
Jian-Jun Yang, Beijing, CN;
ZEROTECH (SHENZHEN) INTELLIGENCE ROBOT CO., LTD., Shenzhen, CN;
Abstract
A positioning method for unmanned aerial vehicle is disclosed. A first photo and a second photo of a predetermined form are first obtained, a first color card image of a color card is recognized from the first photo, and a second color card image of the same color card is recognized from the second photo, wherein the predetermined form includes a number of color cards. A first geometric center point coordinate and a first barycentric point coordinate of the first color card image are calculated. A reference line on the color card is obtained by mapping the first geometric center point coordinate and the first barycentric point coordinate to the color card, and a rotation angle of the UAV based on the reference line is obtained. A positioning method to get the flight speed for the UAV and a positioning device is also disclosed.