Rotation parameter detection method, encoder, laser radar and unmanned aerial vehicle

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United States of America Patent

PATENT NO 10859409
APP PUB NO 20200149930A1
SERIAL NO

16742171

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Abstract

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An encoder includes a code disc and a processor communicatively coupled with the code disc. The code disc is configured to rotate along with a rotating object and includes a plurality of fan teeth extending radially. Each of the fan teeth includes a first line segment edge, a second line segment edge, and an arc edge along a circumference of the code disc and connecting the first line segment edge and the second line segment edge. The first line segment edges of the fan teeth are arranged at the code disc with equal intervals. A length of the arc edge of one of the fan teeth is different from lengths of the arc edges of other ones of the fan teeth, and the lengths of the arc edges of the other ones of the fan teeth equal each other. The processor is configured to detect a rotation of the code disc to obtain a detection signal, and obtain a rotation parameter of the rotating object based on the detection signal. The rotation parameter includes at least one of a rotation direction, a rotation speed, or a mechanical zero position.

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Patent Owner(s)

Patent OwnerAddress
SZ DJI TECHNOLOGY CO LTD518057 SHENZHEN NANSHAN HIGH-TECH ZONE SHENZHEN GUANGDONG PROVINCE 6/F SHENZHEN INDUSTRY EDUCATION AND RESEARCH BUILDING HONG KONG UNIVERSITY OF SCIENCE AND TECHNOLOGY NO 9 YUEXINGDAO SOUTH DISTRICT NANSHAN DISTRICT SHENZHEN CITY GUANGDONG PROVINCE SHENZHEN CITY GUANGDONG PROVINCE 518057

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Lan, Qiu Shenzhen, CN 27 63
Liu, Wanqi Shenzhen, CN 14 33
Zhou, Changxing Shenzhen, CN 18 51

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