-
公开(公告)号：US20240337734A1
公开(公告)日：2024-10-10
申请号：US18745499
申请日：2024-06-17
发明人： Congbo SHI , Kangping LI , Shaoqing XIANG
IPC分类号： G01S7/484 , G01S7/481 , G01S7/4865 , G01S17/10
CPC分类号： G01S7/484 , G01S7/4815 , G01S7/4865 , G01S17/10
摘要： This disclosure provides a control method for a LiDAR, where the LiDAR includes n channels, n≥32, each channel being formed by at least one laser and at least one detector, the control method including: S11: determining a light emission mode of lasers that are to emit light; and S12: controlling the channels to emit light in groups, lasers of channels within each group emitting light in parallel, where pulses emitted by the lasers of the group of channels are encoded in accordance with the light emission mode, at least one of pulses emitted by each laser serving as a ranging pulse, where the light emission mode is configured to cause ranging echo pulses of at least part of channels emitting light in parallel to be temporally staggered from each other. This disclosure sets the light emission mode and controls pulse emitting based on the ranging result, to cause the ranging echo pulses of the channels emitting light in parallel to fall in different intervals of the flight window to reduce crosstalk between multiple channels of the same LiDAR and crosstalk between different LiDARs, thereby improving the precision of detection.
-
2.发明公开公开(公告)号：US20230305121A1
公开(公告)日：2023-09-28
申请号：US18325156
申请日：2023-05-30
发明人： Wenxiang WANG , Congbo SHI , Shaoqing XIANG
CPC分类号： G01S7/4876 , G01S17/89
摘要： A method, a processor, and a laser radar system for filtering out interstitial points in a radar point cloud includes: for a to-be-recognized point in a point cloud, acquiring, from point cloud information, ranging information of the to-be-recognized point, ranging information of one or more auxiliary points at the first side of the to-be-recognized point, and ranging information of one or more auxiliary points at the second side of the to-be-recognized point; determining, based on the ranging information of the to-be-recognized point, whether the to-be-recognized point is an interstitial point; and filtering out the to-be-recognized point if the to-be-recognized point is the interstitial point.
-
公开(公告)号：US20230375682A1
公开(公告)日：2023-11-23
申请号：US18209171
申请日：2023-06-13
发明人： Fuwei HUANG , Congbo SHI , Liangchen YE , Shaoqing XIANG
IPC分类号： G01S7/487 , G01S17/14 , G01S7/4865 , G01S7/484
CPC分类号： G01S7/4873 , G01S17/14 , G01S7/4865 , G01S7/484
摘要： A method for controlling a lidar and a lidar are provided. The method includes: emitting a first sequence of laser pulses, the first sequence of laser pulses including at least a first detection pulse and a second detection pulse coded at a time interval T; receiving a plurality of echo pulses; determining whether an overlay is present among the plurality of echo pulses; and controlling the lidar to emit a second sequence of laser pulses to perform re-detection based on a determination of whether the overlay is present among the plurality of echo pulses.
-
公开(公告)号：US20230129970A1
公开(公告)日：2023-04-27
申请号：US18145333
申请日：2022-12-22
发明人： Feng LIANG , Shaoqing XIANG , Congbo SHI , Xiaotong ZHOU
IPC分类号： G01S7/48 , G01S7/484 , G01S7/497 , G01S7/4863 , G01S17/26
摘要： A control method of a lidar is provided. The lidar includes a laser emitter array with N laser emitters. The control method includes: controlling n laser emitters to emit a first detection laser beam, and controlling k laser emitters among the n laser emitters to emit a second detection laser beam; receiving echoes, reflected by a target object, of the first detection laser beam and the second detection laser beam; calculating a distance of the target object according to the echoes; and reducing, in a case that the target object is detected in a preset distance, an emission intensity of the first detection laser beam emitted by at least parts of the n laser emitters in a range corresponding to the target object in a next detection period.
-
-
-
搜索结果
4 条记录 (耗时 0.015 秒)
