AIRCRAFT CONTROL METHOD, OPTICAL FLOW MODULE AND AIRCRAFT

WIPO Patent Application WO/2018/059296

A1

An aircraft (40) control method, an optical flow module (100) and an aircraft (40), the method comprising: transmitting an optical signal to the ground, and recording a first time data of the transmission of the optical signal (S1); receiving a reflected light signal of the irradiated ground with respect to the optical signal, recording a second time data of the receiving of the reflected optical signal, and calculating the height difference between the irradiated ground and the aircraft (40) according to the first time data and the second time data (S2); collecting texture information of the irradiated ground in succession for several times at preset time intervals to generate a two-dimensional image containing the texture information and the height difference, and calculating the displacement of the aircraft (40) according to the position change amount of a certain point on the ground in various two-dimensional feature images (S3); sending the displacement and the two-dimensional feature image to a flight control system (50) such that the flight control system (50) determines whether the aircraft (40) deviates from a preset hover position according to the displacement and the height difference, and if so, controlling the aircraft (40) to fly back to the hover position (S4).

HU HUAZHI (CN)
CHEN SHANGHUI (CN)

PCT/CN2017/102599

April 05, 2018

September 21, 2017

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EHANG INTELLIGENT EQUIPMENT GUANGZHOU CO LTD (CN)

G01S17/06

WO2015005534A1

2015-01-15

CN206497201U	2017-09-15
CN103853156A	2014-06-11
CN103365297A	2013-10-23
CN102506892A	2012-06-20
CN105352495A	2016-02-24
EP2241896A1	2010-10-20

BTLZ IP AGENCY (CN)

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