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Patent Searching and Data


Title:
CRADLE HEAD CONTROL METHOD AND CRADLE HEAD
Document Type and Number:
WIPO Patent Application WO/2019/205152
Kind Code:
A1
Abstract:
A cradle head control method and a cradle head, the method comprising: acquiring a first angular velocity detected by a gyroscope in a cradle head, the first angular velocity being an angular velocity in a yaw direction (S301); acquiring the angular velocity of a pitch axis motor, the angular velocity of a roll axis motor and the angular velocity of a yaw axis motor in the cradle head, the pitch axis motor being used to control the pitch angle of the cradle head, the roll axis motor being used to control the roll angle of the cradle head, and the yaw axis motor being used to control the yaw angle of the cradle head (S302); acquiring an angular velocity offset of the gyroscope in the yaw direction according to the first angular velocity, the angular velocity of the pitch axis motor, the angular velocity of the roll axis motor and the angular velocity of the yaw axis motor (S303); and adjusting the yaw angle of the cradle head according to the angular velocity offset (S304). The present method may eliminate the orientation drift of the cradle head in the yaw direction due to a detection error by the gyroscope, so that a picture taken by a camera device mounted on the cradle head is stable, thereby improving the picture-taking quality.

Inventors:
SU, Tie (6F HKUST SZ IER Bldg, No.9 Yuexing 1st Rd.Hi-Tech Park , Nanshan Distric, Shenzhen Guangdong 7, 518057, CN)
Application Number:
CN2018/085123
Publication Date:
October 31, 2019
Filing Date:
April 28, 2018
Export Citation:
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Assignee:
SZ DJI TECHNOLOGY CO., LTD. (6F HKUST SZ IER Bldg, No.9 Yuexing 1st Rd.Hi-Tech Park , Nanshan Distric, Shenzhen Guangdong 7, 518057, CN)
International Classes:
G05D1/08; G01C21/18; G05D3/12; B64D47/08
Foreign References:
CN104656684A2015-05-27
CN106953553A2017-07-14
CN107111322A2017-08-29
CN105378429A2016-03-02
CN102692225A2012-09-26
CN107807680A2018-03-16
CN107247459A2017-10-13
CN107074348A2017-08-18
CN106873641A2017-06-20
US20160381271A12016-12-29
Attorney, Agent or Firm:
LEADER PATENT & TRADEMARK FIRM (8F-6, Bldg.A Winland International Center,No. 32 Xizhimen North Street, Haidian District, Beijing 2, 100082, CN)
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