公开(公告)号：US20230341677A1

公开(公告)日：2023-10-26

申请号：US18323916

申请日：2023-05-25

Applicant: SZ DJI TECHNOLOGY CO., LTD.

Inventor： Li WANG ,  Huai HUANG ,  Xiao HUANG ,  Zezheng ZHANG ,  Yalin CHEN

IPC: G02B26/08 ,  G02B26/10 ,  G01S7/481 ,  G01S17/931 ,  G01S17/42

CPC classification number: G02B26/0891 ,  G02B26/101 ,  G02B26/108 ,  G01S7/4817 ,  G01S17/931 ,  G01S17/42

Abstract: 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.

公开(公告)号：US20250014275A1

公开(公告)日：2025-01-09

申请号：US18896707

申请日：2024-09-25

Applicant: SZ DJI TECHNOLOGY CO., LTD.

Inventor： Yalin CHEN ,  Li WANG ,  Xiao HUANG ,  Xiaobing XIE

IPC: G06T17/00 ,  G01S17/89

Abstract: A control method includes obtaining distribution information of a point cloud obtained by a detection device. The detection device includes a light source, and a first reflection assembly and a second reflection assembly configured to cause a light beam emitted by the light source to scan in a first direction and a second direction, respectively, to obtain the point cloud in a detection range. The method further includes, in response to a point cloud line distribution of the point cloud deviating from the second direction, controlling the first reflection assembly to adjust from a current attitude to a target attitude, to correct the point cloud line distribution to the second direction.

公开(公告)号：US20220082665A1

公开(公告)日：2022-03-17

申请号：US17456624

申请日：2021-11-26

Applicant: SZ DJI TECHNOLOGY CO., LTD.

Inventor： Yalin CHEN ,  Shuai DONG ,  Xiaoping HONG

IPC: G01S7/481 ,  G02B26/10 ,  G01S17/10

Abstract: A method for controlling a scanning field of view (FOV) of a ranging apparatus includes emitting a light pulse sequence, changing the light pulse sequence to exit at different direction via at least three optical elements, wherein controlling the scanning FOV by controlling the at least three optical elements including at least one of controlling at least one of a scan patterns, a position, or a scanning density of the scanning FOV by controlling rotation speeds of the at least three optical elements, and/or controlling an extension direction of the scanning FOV by controlling initial phases of the at least three optical elements.

公开(公告)号：US20210333401A1

公开(公告)日：2021-10-28

申请号：US17372056

申请日：2021-07-09

Applicant: SZ DJI TECHNOLOGY CO., LTD.

Inventor： Shuai DONG ,  Yalin CHEN ,  Fu ZHANG ,  Xiaoping HONG

IPC: G01S17/89 ,  G06K9/62 ,  G01S17/86 ,  G01S17/42

Abstract: The present disclosure provides a distance measuring device. The distance measuring device is configured to detect a target scene to generate point cloud data, the point cloud data including a distance and/or an orientation of a detection object relative to the distance measuring device. An accumulation time of the point cloud data of one or more frames is greater than a time interval between outputting the point cloud data of adjacent frames.