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1.发明公开公开(公告)号：US20230314571A1
公开(公告)日：2023-10-05
申请号：US18206221
申请日：2023-06-06
发明人： Chenghui LONG , Bowen LI , Li WANG , Yang YANG , Likui ZHOU , Zezheng ZHANG , Cong XIONG
IPC分类号： G01S7/481 , G01S17/89 , G01S7/4865
CPC分类号： G01S7/4817 , G01S17/89 , G01S7/4865
摘要： A detection apparatus may include a light source to emit a light pulse sequence, a first scanner and a second scanner disposed in an optical path of the light pulse sequence to change propagation direction of the light pulse sequence. The first scanner alone may be capable of causing an outgoing light beam to scan along a first path, and the second scanner alone may be capable of causing the outgoing light beam to scan along a second path. The first scanner may include a reflector and a first driver; and the second scanner may include a reflective structure and a second driver, the reflective structure including at least two reflective surfaces. The second driver may drive the reflective structure to rotate so that the at least two reflective surfaces are rotated sequentially onto the optical path of the light pulse sequence.
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公开(公告)号：US20230341677A1
公开(公告)日：2023-10-26
申请号：US18323916
申请日：2023-05-25
发明人： Li WANG , Huai HUANG , Xiao HUANG , Zezheng ZHANG , Yalin CHEN
IPC分类号： G02B26/08 , G02B26/10 , G01S7/481 , G01S17/931 , G01S17/42
CPC分类号： G02B26/0891 , G02B26/101 , G02B26/108 , G01S7/4817 , G01S17/931 , G01S17/42
摘要： A LiDAR system includes a light source to emit pulsed laser light beams, a scanning optical assembly to direct the pulsed laser light beams to scan an environment for detecting one or more objects therein, and a receiver to receive, via the scanning optical assembly, return light beams reflected by the one or more objects. The scanning optical assembly includes a first optical element rotatable about a first axis and to receive a light beam at a first surface thereof and refract the light beam by a second surface thereof at which the light beam exits the first optical element, and a second optical element spaced from the first optical element and rotatable about a second axis. The second optical element includes a reflective surface to reflect the light beam to the environment and a refractive surface to refract the light beam to the reflective surface.
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3.发明申请公开(公告)号：US20190337637A1
公开(公告)日：2019-11-07
申请号：US16515428
申请日：2019-07-18
发明人： Canlong LIN , Li WANG , Zhimeng SHANG
摘要： A method for controlling a landing gear of an unmanned aerial vehicle (UAV) includes detecting whether a relative-to-ground height of the UAV is greater than a height threshold, where the relative-to-ground height is a vertical height of the UAV with respect to an object; and in response to the relative-to-ground height being not greater than the height threshold and the UAV having not lowered the landing gear, adjusting the relative-to-ground height to the height threshold or above, and lowering the landing gear.
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4.发明公开公开(公告)号：US20240174378A1
公开(公告)日：2024-05-30
申请号：US18528132
申请日：2023-12-04
发明人： Canlong LIN , Li WANG , Zhimeng SHANG
摘要： A method for controlling a landing gear of an aerial vehicle includes determining whether a relative height of the aerial vehicle is greater than a height threshold and, in response to the relative height being not greater than the height threshold and the aerial vehicle having not lowered the landing gear, adjusting the relative height to the height threshold or above, and lowering the landing gear. The relative height is a vertical height of the aerial vehicle with respect to an object, and the height threshold is a safe flight height.
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公开(公告)号：US20210333374A1
公开(公告)日：2021-10-28
申请号：US17371927
申请日：2021-07-09
发明人： Shuai DONG , Li WANG , Xiongze MEI , Han CHEN
摘要： A ranging apparatus includes an emitter and a detector. The emitter is configured to emit a light pulse sequence. The detector is configured to receive and convert a portion of return light reflected by an object into an electrical signal and determine at least one of a distance or an orientation of the object relative to the ranging apparatus according to the electrical signal. At least one of an anti-reflection material or a reflective surface with a predetermined inclined angle is arranged at a non-working surface off an emission optical path of the light pulse sequence and a reception optical path of the return light and is configured to reflect stray light to outside of the detector. The non-working surface includes a surface of the ranging apparatus that the light pulse sequence and the return light do not pass through.
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公开(公告)号：US20200050216A1
公开(公告)日：2020-02-13
申请号：US16599898
申请日：2019-10-11
发明人： Canlong LIN , Li WANG
摘要： A control method includes obtaining an attitude limit angle of an aircraft, obtaining a current attitude angle of a gimbal mounted at the aircraft, and determining a flight attitude limit angle of the aircraft according to the attitude limit angle of the aircraft and the current attitude angle of the gimbal. The flight attitude limit angle is configured to constrain a tilt angle of the aircraft relative to a horizontal plane during flight, such that a vehicle body of the aircraft does not appear in an image captured by a photographing apparatus arranged at the gimbal.
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