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    CONTROLLING AN AUTONOMOUS VEHICLE USING MODEL PREDICTIVE CONTROL
    31.
    发明申请
    CONTROLLING AN AUTONOMOUS VEHICLE USING MODEL PREDICTIVE CONTROL 审中-公开

    公开(公告)号：US20190113920A1

    公开(公告)日：2019-04-18

    申请号：US16149225

    申请日：2018-10-02

    Applicant: LUMINAR TECHNOLOGIES, INC.

    Inventor： Benjamin Englard ,  Pranav Maheshwari ,  Shubham C. Khilari ,  Vahid R. Ramezani

    IPC: G05D1/00 ,  G06N3/08 ,  G06N5/02 ,  G05D1/02 ,  G01C21/34

    Abstract: A computer-readable medium stores instructions executable by one or more processors to implement a self-driving control architecture for controlling an autonomous vehicle. A perception component receives sensor data and generates signals descriptive of a current state of the environment. Based on those signals, a prediction component generates signals descriptive of one or more predicted future environment states. A motion planner generates decisions for maneuvering the vehicle toward a destination, at least by using the signals descriptive of the current and future environment states to set values of one or more independent variables in an objective equation. The objective equation includes terms corresponding to different driving objectives over a finite time horizon. Values of one or more dependent variables in the objective equation are determined by solving the equation subject to a set of constraints, and values of the dependent variables are used to generate decisions for maneuvering the vehicle.

    Optical amplifier with multi-wavelength pumping
    33.
    发明授权
    Optical amplifier with multi-wavelength pumping 有权

    公开(公告)号：US10211593B1

    公开(公告)日：2019-02-19

    申请号：US15828415

    申请日：2017-11-30

    Applicant: LUMINAR TECHNOLOGIES, INC.

    Inventor： Laurance S. Lingvay ,  Alain Villeneuve ,  Jason M. Eichenholz

    IPC: G01C3/08 ,  H01S3/094 ,  H01S3/067 ,  H01S5/40 ,  G01S7/484 ,  H01S3/13 ,  G01S17/10 ,  G02B27/10

    Abstract: In one embodiment, an optical amplifier includes a first pump laser diode and a second pump laser diode. The first pump laser diode is configured to produce pump light that includes a first amount of optical power at a first wavelength, and the second pump laser diode is configured to produce pump light that includes a second amount of optical power at a second wavelength different from the first wavelength. The optical amplifier also includes an optical gain fiber configured to receive the pump light from the first and second pump laser diodes and provide optical gain for an optical signal propagating through the optical gain fiber. The optical amplifier further includes a controller configured to adjust the first amount of optical power produced by the first pump laser diode and the second amount of optical power produced by the second pump laser diode.

    Multispectral lidar system
    35.
    发明授权
    Multispectral lidar system 有权

    公开(公告)号：US10094925B1

    公开(公告)日：2018-10-09

    申请号：US15943498

    申请日：2018-04-02

    Applicant: LUMINAR TECHNOLOGIES, INC.

    Inventor： Joseph G. LaChapelle

    IPC: G01C3/08 ,  G01S17/08 ,  H01L27/146 ,  G01S17/89 ,  G01S7/483 ,  G01S7/481

    Abstract: A multispectral lidar system includes a laser configured to emit a pulse of light including a first wavelength, scanner configured to direct the emitted pulse of light in accordance with a scan pattern, a receiver including a first detector and a second detector, and a controller. The first detector is configured to detect the emitted pulse of light scattered by a remote target, and the second detector is configured to detect light scattered or emitted by the remote target and including a second wavelength. The scanner provides, at any point in time, a fixed spatial relationship between the fields of view over which the light with the first wavelength and the second wavelength is received. A controller can determine a distance to the remote target and use this distance to modify a measurement of the property of the remote target based on the light detected by the second detector.

    LIDAR Transmitter and Detector System Using Pulse Encoding to Reduce Range Ambiguity
    37.
    发明申请
    LIDAR Transmitter and Detector System Using Pulse Encoding to Reduce Range Ambiguity 审中-公开

    公开(公告)号：US20180284279A1

    公开(公告)日：2018-10-04

    申请号：US15917628

    申请日：2018-03-10

    Applicant: LUMINAR TECHNOLOGIES, INC.

    Inventor： Scott R. Campbell ,  Joseph G. LaChapelle ,  Jason M. Eichenholz ,  Austin K. Russell

    IPC: G01S17/10 ,  G01S7/481 ,  G01S7/486 ,  G01S7/484

    Abstract: A lidar system includes a transmitter that encodes successive transmit pulses with different pulse characteristics and a receiver that detects the pulse characteristics of each received (scattered or reflected) pulse and that distinguishes between the received pulses based on the detected pulse characteristics. The lidar system thus resolves range ambiguities by encoding pulses of scan positions in the same or different scan periods to have different pulse characteristics, such as different pulse widths or different pulse envelope shapes. The receiver includes a pulse decoder configured to detect the relevant pulse characteristics of the received pulse and a resolver that determines if the pulse characteristics of the received pulse matches the pulse characteristics of the current scan position or that of a previous scan position.

    Sizing the Field of View of a Detector to Improve Operation of a Lidar System
    39.
    发明申请
    Sizing the Field of View of a Detector to Improve Operation of a Lidar System 审中-公开

    公开(公告)号：US20180284241A1

    公开(公告)日：2018-10-04

    申请号：US15710744

    申请日：2017-09-20

    Applicant: LUMINAR TECHNOLOGIES, INC.

    Inventor： Scott R. Campbell ,  Lane A. Martin ,  Matthew D. Weed ,  Jason M. Eichenholz

    IPC: G01S7/486 ,  G01S17/10

    Abstract: A lidar system includes a light source, a scanner, and a receiver and is configured to detect remote targets located up to RMAX meters away. The receiver includes a detector with a field of view larger than the light-source field of view. The scanner causes the detector field of view to move relative to the instantaneous light-source field of view along the scan direction, so that (i) when a pulse of light is emitted, the instantaneous light-source field of view is approximately centered within the detector field of view, and (ii) when a scattered pulse of light returns from a target located RMAX meters away, the instantaneous light-source field of view is located near an edge of the field of view of the detector and is contained within the field of view of the detector.

    SCAN PATTERNS FOR LIDAR SYSTEMS
    40.
    发明申请
    SCAN PATTERNS FOR LIDAR SYSTEMS 审中-公开

    公开(公告)号：US20180275249A1

    公开(公告)日：2018-09-27

    申请号：US15871687

    申请日：2018-01-15

    Applicant: LUMINAR TECHNOLOGIES, INC.

    Inventor： SCOTT R. CAMPBELL ,  RODGER W. CLEYE ,  JASON M. EICHENHOLZ ,  LANE A. MARTIN ,  MATTHEW D. WEED

    IPC: G01S7/481 ,  G01S7/486 ,  G01S17/10

    CPC classification number: G01S7/4815 ,  G01S7/4817 ,  G01S7/4865 ,  G01S17/10 ,  G01S17/42 ,  G01S17/87

    Abstract: A lidar system is disclosed. The lidar system can include a light source to produce first and second sets of pulses of light. The system can also include a first lidar sensor with a first scanner to scan the first set of pulses of light along a first scan pattern, and a first receiver to detect scattered light from the first set of pulses of light. The system can also include a second lidar sensor with a second scanner to scan the second set of pulses of light along a second scan pattern, and a second receiver to detect scattered light from the second set of pulses of light. The first scan pattern and the second scan pattern can be at least partially overlapped in an overlap region. The lidar system can also include an enclosure to contain the light source, the first lidar sensor, and the second lidar sensor.

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