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公开(公告)号：US12019187B2
公开(公告)日：2024-06-25
申请号：US17032192
申请日：2020-09-25
发明人： Shaoqing Xiang , Na Li , Yancong Lu
CPC分类号： G01S7/4817 , G01S7/4815 , G01S7/4816 , G01S17/42 , G01S17/931 , G02B26/105 , G02B27/106 , G02B27/1086 , G02B5/1871
摘要： A multiline LiDAR includes a rotor, a stator, a plurality of lasers, a light collimator arranged in the rotor, and one or more carriers arranged in the rotor. The plurality of lasers are arranged on the one or more carriers in n rows, n≥2, and lasers in different rows are staggered from each other. The multiline LiDAR is configured such that, when detection light emitted by each laser is reflected by objects, reflected light is converged on a detector after passing through an optical receiver, and detection beams emitted by the plurality of lasers are configured to be driven by the rotor to scan around a central axis to generate a scanning point cloud having a sparse-dense distribution in a vertical direction to obtain information about objects in a central field of view. A number of lines of the multiline LiDAR is equal to or greater than 16.
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公开(公告)号：US11899137B2
公开(公告)日：2024-02-13
申请号：US17223230
申请日：2021-04-06
发明人： Xuezhou Zhu , Kai Sun , Shaoqing Xiang , Jin Yang , Chenluan Wang , Xugang Liu , Wenyi Zhu , Tingyu Yao , Shixiang Wu , Hui Yin
IPC分类号： G01C3/08 , G01S7/4863 , G01S17/894 , G01S7/484 , G01S7/481
CPC分类号： G01S7/4863 , G01S7/484 , G01S7/4815 , G01S17/894
摘要： A Lidar system and method is provided for adaptive control. The Lidar system comprises: an array of emitters each of which is individually addressable and controlled to emit a multi-pulse sequence, at least a subset of the emitters are activated to emit multi-pulse sequences concurrently according to an emission pattern; an array of photosensors each of which is individually addressable, at least a subset of the photosensors are enabled to receive light pulses according to a sensing pattern, each of the subset of photosensors is configured to detect returned light pulses returned and generate an output signal indicative of an amount of optical energy associated with at least a subset of the light pulses; and one or more processors electrically coupled to the array of emitters and the array of photosensors and configured to generate the emission pattern and the sensing pattern based on one or more real-time conditions.
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公开(公告)号：US11668802B2
公开(公告)日：2023-06-06
申请号：US16738242
申请日：2020-01-09
发明人： Yongfeng Gao , Shengping Mao , Liangchen Ye , Shaoqing Xiang
CPC分类号： G01S7/4817 , G01S7/484 , G01S17/10 , G02B26/0816 , G02B26/101
摘要： A scanner and a method for controlling the scanner for a Lidar system are provided. The method comprises: producing a trigger signal by a positional sensor of the scanner; generating a single drive signal comprising a first component at a first frequency and a second component at a second frequency, the first component and the second component are superposed with a fixed phase relationship with aid of the trigger signal; transmitting the single drive signal to the scanner, and the scanner has resonant responses at the first frequency; and actuating the scanner to move in a first periodic motion at the first frequency about a first axis, and move in a second periodic motion at the second frequency about a second axis.
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公开(公告)号：US11474207B2
公开(公告)日：2022-10-18
申请号：US16539318
申请日：2019-08-13
发明人： Rui Wang , Xuezhou Zhu , Na Li , Jiasheng Li , Hongguang Wang , Shaoqing Xiang , Yifan Li
摘要： A Lidar system is provided. The Lidar system comprises: a set of light sources configured to emit a plurality of light beams; a set of optical fiber elements, wherein each of the set of light sources is optically coupled to a first end of one or more optical fiber elements from the set of optical fiber elements; and at least one mounting unit comprising a structure configured to receive a second end of the set of optical fiber elements at one or more directions thereby affecting a direction of the plurality of light beams individually.
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公开(公告)号：US20210321174A1
公开(公告)日：2021-10-14
申请号：US17354789
申请日：2021-06-22
发明人： Kai Sun , Jun Tao , Shaoqing Xiang
摘要： A laser gas detection system includes a laser gas detector and a near-eye display device. The laser gas detection system provided in the present disclosure incorporates modern display technologies and modern communication facilities to present detection results to a user of the laser gas detection system in various intuitive and highly readable forms. The laser gas detection system is further capable of projecting the detection results to a field of view of the user through the near-eye display device.
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公开(公告)号：US20240192334A1
公开(公告)日：2024-06-13
申请号：US18390745
申请日：2023-12-20
发明人： Xuezhou Zhu , Kai Sun , Shaoqing Xiang , Jin Yang , Chenluan Wang , Xugang Liu , Wenyi Zhu , Tingyu Yao , Shixiang Wu , Hui Yin
IPC分类号： G01S7/4863 , G01S7/481 , G01S7/484 , G01S17/894
CPC分类号： G01S7/4863 , G01S7/4815 , G01S7/484 , G01S17/894
摘要： A Lidar system and method is provided for adaptive control. The Lidar system comprises: an array of emitters each of which is individually addressable and controlled to emit a multi-pulse sequence, at least a subset of the emitters are activated to emit multi-pulse sequences concurrently according to an emission pattern; an array of photosensors each of which is individually addressable, at least a subset of the photosensors are enabled to receive light pulses according to a sensing pattern, each of the subset of photosensors is configured to detect returned light pulses returned and generate an output signal indicative of an amount of optical energy associated with at least a subset of the light pulses; and one or more processors electrically coupled to the array of emitters and the array of photosensors and configured to generate the emission pattern and the sensing pattern based on one or more real-time conditions.
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公开(公告)号：US20230341523A1
公开(公告)日：2023-10-26
申请号：US18138869
申请日：2023-04-25
发明人： Yongfeng Gao , Shengping Mao , Liangchen Ye , Shaoqing Xiang
CPC分类号： G01S7/4817 , G02B26/101 , G01S17/10 , G02B26/0816 , G01S7/484
摘要： A scanner and a method for controlling the scanner for a Lidar system are provided. The method comprises: producing a trigger signal by a positional sensor of the scanner; generating a single drive signal comprising a first component at a first frequency and a second component at a second frequency, the first component and the second component are superposed with a fixed phase relationship with aid of the trigger signal; transmitting the single drive signal to the scanner, and the scanner has resonant responses at the first frequency; and actuating the scanner to move in a first periodic motion at the first frequency about a first axis, and move in a second periodic motion at the second frequency about a second axis.
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公开(公告)号：US11573327B2
公开(公告)日：2023-02-07
申请号：US17555655
申请日：2021-12-20
发明人： Zhengqing Pan , Shaoqing Xiang , Yifan Li , Kai Sun
IPC分类号： G01S17/894 , G01S7/4865
摘要： A light detection and ranging system is provided for improving imaging accuracy and measurement range. The light detection and ranging system may comprise: a light source configured to emit a multi-pulse sequence into a three-dimensional environment, in which the multi-pulse sequence comprises multiple light pulses having a temporal profile; a photosensitive detector configured to detect light pulses returned from the three-dimensional environment and generate an output signal indicative of an amount of optical energy associated with a subset of the light pulses; and one or more processors electrically coupled to the light source and the photosensitive detector, and the one or more processors are configured to: generate the temporal profile based on one or more real-time conditions; and determine one or more parameters for selecting the subset of light pulses.
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公开(公告)号：US20220120897A1
公开(公告)日：2022-04-21
申请号：US17553064
申请日：2021-12-16
发明人： Kai Sun , Shaoqing Xiang
IPC分类号： G01S17/04 , G01S17/931 , G01S7/484
摘要： The present invention relates to the field of ranging, and in particular, to a ranging method for a lidar system, and a lidar system. The ranging method for a lidar system includes: emitting a first pulse having a first energy (102); receiving an echo signal corresponding to the first pulse (104); determining, according to the echo signal, whether a preset distance has an obstacle (106); and emitting a second pulse having a second energy in an emission direction of the first pulse corresponding to the determined echo signal when no obstacle is determined within the preset distance, the second energy being greater than the first energy, and not emitting the second pulse in the emission direction of the first pulse corresponding to the determined echo signal when an obstacle is determined within the preset distance (108). Therefore, without increasing the complexity of the system structure, a lidar can satisfy safety requirements for human eyes while increasing the single-pulse energy threshold of a ranging pulse, thereby ensuring telemetering performance and reducing costs.
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公开(公告)号：US20210302267A1
公开(公告)日：2021-09-30
申请号：US17268122
申请日：2019-08-13
发明人： Jun Tao , Shaoqing Xiang
摘要： A data management terminal for a laser gas detector, and a data management method thereof are provided. The data management method includes: the data management terminal establishes a connection to a communication port of the laser gas detector, and obtains target gas concentration data in a target region through the connection; the data management terminal creates a target gas concentration log according to the target gas concentration data; and the data management terminal transmits the target gas concentration log to a server.
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