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141.发明申请公开(公告)号：US20210270965A1
公开(公告)日：2021-09-02
申请号：US16758848
申请日：2019-11-18
Applicant: SUTENG INNOVATION TECHNOLOGY CO., LTD.
Inventor： Letian LIU , Shen JIANG , Chunxin QIU
Abstract: The present application relates to a Lidar that includes a laser transmitter to emit a laser beam; an optical processing circuit. The optical processing circuit is configured to receive the laser beam reflected from a target object and convert the reflected laser beam to a photocurrent signal, and convert the photocurrent signal from an optical receiver to a voltage signal. The Lidar also includes a gain control circuit, connecting to the optical processing circuit; and a controller, connecting to the gain control circuit, to adjust a gain of the optical processing circuit via the gain control circuit and based on an amplitude of the voltage signal.
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公开(公告)号：US20200319339A1
公开(公告)日：2020-10-08
申请号：US15930426
申请日：2020-05-12
Applicant: SUTENG INNOVATION TECHNOLOGY CO., LTD.
Inventor： Zhihua CHEN , Letian LIU , Chunxin QIU , Xujun TAN , Xiaojun ZHOU
IPC: G01S17/88 , G01S7/481 , G01S7/487 , H04B10/112 , H04B10/40
Abstract: The present disclosure provides a range-finding system capable of data communication. The range-finding system includes a rangefinder for acquiring ranging data, a magnetic ring unit having at least two communication channels, and a data processing and control unit. Each communication channel includes a magnetic ring. The magnetic ring unit transmits the ranging data as downlink data from the rangefinder to the data processing and control unit via one or more of the communication channels.
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公开(公告)号：US10746855B2
公开(公告)日：2020-08-18
申请号：US16474425
申请日：2017-10-18
Applicant: SUTENG INNOVATION TECHNOLOGY CO., LTD.
Inventor： Chunxin Qiu , Letian Liu
Abstract: Disclosed are a multi-line lidar and a control method therefor. The multi-line lidar comprises: a laser emitter (110) for emitting outgoing lasers, comprising a plurality of laser emitting boards (111, 211, 212, 211, 212, 213, 310 and 320), and an optical collimating unit (120) for collimating the outgoing lasers. Light-emitting surfaces of the plurality of laser emitting boards (111) are located in a focal plane (130) of the optical collimating unit (120).
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公开(公告)号：US20200209367A1
公开(公告)日：2020-07-02
申请号：US16726035
申请日：2019-12-23
Applicant: SUTENG INNOVATION TECHNOLOGY CO., LTD.
Inventor： Chunxin QIU , Letian LIU
IPC: G01S7/497 , G01S17/931 , G01S17/894 , G01S7/481
Abstract: The present disclosure provides a multi-beam LiDAR system. The multi-beam LiDAR system includes a transmitter having an array of laser emitters. Each laser emitter is configured to emit a laser beam. The multi-beam LiDAR system also includes a receiver having an array of photodetectors. Each photodetector is configured to receive at least one return beam that is reflected by an object from one of the laser beams. The laser emitter array includes a plurality of laser emitter boards perpendicular to a horizontal plane. Each laser emitter board has a plurality of laser emitters. The plurality of laser emitters in the laser emitter array are staggered along a vertical direction. The photodetector array includes a plurality of columns of photodetectors. One of the laser emitter boards corresponds to one column of photodetectors.
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公开(公告)号：US20190228239A1
公开(公告)日：2019-07-25
申请号：US16327685
申请日：2016-08-23
Applicant: SUTENG INNOVATION TECHNOLOGY CO., LTD.
Inventor： Bin WANG , Yingying ZHANG
IPC: G06K9/00
Abstract: A target detection method, system and controller. The method comprises: receiving first scan data transmitted by a radar, the first scan data being obtained after the radar performs a first type of scanning on a first target region; receiving image data transmitted by a digital image device, the image data being obtained after the digital image device images a second target region, an overlapping region existing between the second target region and the first target region; according to the first scan data, finding image information corresponding to obstacle targets from the image data so as to identify the types of the target obstacles; when it is determined according to the types of the target obstacles that an obstacle target that needs to be avoided exists, controlling the radar to perform a second type of scanning on the obstacle target that needs to be avoided and tracking same, the precision of the second type of scanning being greater than the precision of the first type of scanning.
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Patent Agency Ranking
公开(公告)号：US20190129031A1
公开(公告)日：2019-05-02
申请号：US16095321
申请日：2016-04-22
Applicant: SUTENG INNOVATION TECHNOLOGY CO., LTD
Inventor： Chunxin Qiu , Letian Liu
Abstract: Provided are a pulse laser ranging system and method employing a time domain waveform matching technique. The system comprises a software part and a hardware part. The hardware part comprises an optical collimation system, an FPGA, a filter, a photoelectric conversion system, an analog amplifier circuit, a laser transmitter, a signal combination system, an ADC sampling system and a narrow pulse laser transmitting circuit. When transmitting a control signal to control laser transmission, the FPGA sends a time reference pulse to the signal combination system. The signal combination system integrates the time reference pulse with a fixed amplitude analog echo signal to form an echo signal with a time reference. The echo signal with a time reference is quantified into a digital detection signal in the ADC sampling system. The digital detection signal is sent to the FPGA to undergo data analysis. The software part is used to perform time domain waveform matching analysis to obtain a ranging result. The ranging result is output by the FPGA.
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公开(公告)号：US20250123356A1
公开(公告)日：2025-04-17
申请号：US18911221
申请日：2024-10-09
Applicant: SUTENG INNOVATION TECHNOLOGY CO., LTD.
Inventor： Changsheng GONG
IPC: G01S7/285
Abstract: A radar data processing device and method, and a radar system are disclosed. The radar data processing device includes: an input selection module configured to select an input channel; a time digital conversion module connected to the input selection module, and configured to respectively time an echo signal or a start signal to obtain a timing result; an extraction module connected to the input selection module and the time digital conversion module respectively, and configured to extract phase of the start signal to obtain a phase result; a phase decomposition module connected to the extraction module, and configured to calculate a measurement result.
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公开(公告)号：US12276851B2
公开(公告)日：2025-04-15
申请号：US18815113
申请日：2024-08-26
Applicant: SUTENG INNOVATION TECHNOLOGY CO., LTD.
Inventor： Hao Wang , Jiawen Liao , Penghui Dong , Jing Wang
Abstract: Embodiments of the present application disclose a photonic chip, a LiDAR, and a mobile device. The photonic chip has a substrate, a cladding layer, a first coupler, a first beam splitter, an emitting waveguide module, and a first optical adjusting monitoring module. The first beam splitter includes a first port, a second port, a third port, and a fourth port. The first beam splitter is configured to output the optical signal input through the first port through the third port and the fourth port, and to output the optical signal input through the third port through the first port and the second port. The first optical adjusting monitoring module includes a first photodetector. Monitors the optical power of the return light received by the emitting waveguide module through the first optical adjusting monitoring module integrated on the photonic chip, making the process more time-saving and labor-saving.
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公开(公告)号：US12265178B2
公开(公告)日：2025-04-01
申请号：US17098233
申请日：2020-11-13
Applicant: SUTENG INNOVATION TECHNOLOGY CO., LTD.
Inventor： Shaodong Yang
Abstract: A lidar, and an anti-interference method therefor, may modulate a transmitting time of the lidar by injecting random time jitter at a time interval in a sequence of the transmitting time, and cause the lidar to transmit a laser pulse according to a modulated transmitting time. When an echo received by the lidar includes an expected echo of the local lidar and an unexpected echo from other lidars, because the transmitting time and the expected receiving time of the echo are correlated, injecting random time jitter in the transmitting time of the lidar may disrupt the correlation between the transmitting time of the local lidar and the transmitting time of other lidars. Thus, when a plurality of lasers are used together in one scenario and cause crosstalk, the anti-interference method for the lidar above can be used to fight against crosstalk to some extent.
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公开(公告)号：US20250102640A1
公开(公告)日：2025-03-27
申请号：US18806665
申请日：2024-08-15
Applicant: SUTENG INNOVATION TECHNOLOGY CO., LTD.
Inventor： Yan ZHAO
IPC: G01S7/484
Abstract: This application provides a laser detection method and device, applied to LiDAR. The LiDAR includes a first emitting unit, and the laser detection method includes: obtaining a random variable; determining a plurality of first emission times according to the random variable; and controlling the first emitting unit to emit a laser signal at the plurality of first emission times.
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