Calibration of detection system to vehicle using a mirror

    公开(公告)号:US11615553B1

    公开(公告)日:2023-03-28

    申请号:US17725636

    申请日:2022-04-21

    Applicant: Waymo LLC

    Abstract: The disclosure provides for a method of calibrating a detection system that is mounted on a vehicle. The method includes detecting characteristics of the mirror and characteristics of a vehicle portion using the detection system. The mirror reflects the vehicle portion to be detected using the detection system. The method also includes determining a first transform based on the detected one or more of mirror characteristics, determining a second transform based on the one or more vehicle portion characteristics, and determining a third transform based on a known position of the vehicle portion in relation to the vehicle. Further, the method includes determining a position of the detection system relative to the vehicle based on the first, second, and third transforms and then calibrating the detection system using the determined position of the detection system relative to the vehicle.

    Method and system for calibrating a plurality of detection systems in a vehicle

    公开(公告)号:US10852731B1

    公开(公告)日:2020-12-01

    申请号:US15971704

    申请日:2018-05-04

    Applicant: Waymo LLC

    Abstract: Aspects of the disclosure provide for a method of calibrating a vehicle's plurality of detection systems. To calibrate a first detection system, orientation data is collected using the first detection device when the vehicle faces a first direction and a second direction opposite the first direction. To calibrate a second detection system, data is collected using the second detection device while the vehicle moves in a repeatable pattern near a first object. To calibrate a third detection system, light reflected off a second object is detected using the third detection system as the vehicle is moved towards the second object. To calibrate a fourth detection system, data collected using the second detection system and the fourth detection system is compared. To calibrate a fifth detection system, radar signals reflected off a third object is received using the fifth detection system while the vehicle moves relative to the third object.

    System and method for determining pose data for a vehicle

    公开(公告)号:US11880199B1

    公开(公告)日:2024-01-23

    申请号:US16862808

    申请日:2020-04-30

    Applicant: Waymo LLC

    CPC classification number: G05D1/0088 G05D1/0268 G05D1/0278 G05D2201/02

    Abstract: Example systems and methods are disclosed for determining vehicle pose data for an autonomous vehicle. The vehicle computer system may receive pose data from multiple pose measurement systems of the autonomous vehicle. Each pose measurement system may include one or more corresponding sensors of the autonomous vehicle. The vehicle computer system may determine a pose data quality for the received pose data for each pose measurement system. The vehicle computer system may set the vehicle pose data to the pose data of the pose measurement system with the highest pose data quality. The vehicle computer system may control the autonomous vehicle based on the vehicle pose data.

    System and method for determining pose data for a vehicle

    公开(公告)号:US10663969B1

    公开(公告)日:2020-05-26

    申请号:US16137136

    申请日:2018-09-20

    Applicant: Waymo LLC

    Abstract: Example systems and methods are disclosed for determining vehicle pose data for an autonomous vehicle. The vehicle computer system may receive pose data from multiple pose measurement systems of the autonomous vehicle. Each pose measurement system may include one or more corresponding sensors of the autonomous vehicle. The vehicle computer system may determine a pose data quality for the received pose data for each pose measurement system. The vehicle computer system may set the vehicle pose data to the pose data of the pose measurement system with the highest pose data quality. The vehicle computer system may control the autonomous vehicle based on the vehicle pose data.

    Detecting vehicle movement through wheel movement

    公开(公告)号:US10380757B2

    公开(公告)日:2019-08-13

    申请号:US16007506

    申请日:2018-06-13

    Applicant: Waymo LLC

    Abstract: Aspects of the disclosure relate to detecting vehicle movement. For example, one or more computing devices may receive first image data representative of a vehicle's wheel and second image data representative of the wheel captured subsequent to the capture of the first image data. The one or more computing devices may determine a first location of a first portion of the wheel based on the first image data, and a second location of the first portion of the wheel based on the second image data. The one or more computing devices may calculate a value based on the angular distance between the first location and the second location of the first portion, and based on the value, determine whether the vehicle is in motion. Upon determining the vehicle is in motion the one or more computing devices may provide a signal that the vehicle is in motion.

    Localization initialization for autonomous vehicles

    公开(公告)号:US11965965B2

    公开(公告)日:2024-04-23

    申请号:US17388199

    申请日:2021-07-29

    Applicant: Waymo LLC

    CPC classification number: G01S17/89 G05D1/0088

    Abstract: The technology relates to localizing a vehicle. As one approach, a first LIDAR sensor scan data of an environment of the vehicle and localization data for the vehicle at a location where the first LIDAR sensor scan was captured are stored. Thereafter, the computing device is suspended and subsequently unsuspended. After the computing device is unsuspended, second LIDAR sensor scan data of the vehicle's environment is received. The first LIDAR sensor scan data is compared to the second LIDAR sensor scan data to determine whether the vehicle has moved. Based on the determination of whether the vehicle has moved from the location, the stored localization data is used to localize the vehicle. Other approaches are also described.

    Localization Initialization For Autonomous Vehicles

    公开(公告)号:US20200174131A1

    公开(公告)日:2020-06-04

    申请号:US16204534

    申请日:2018-11-29

    Applicant: Waymo LLC

    Abstract: The technology relates to localizing a vehicle. As one approach, a first LIDAR sensor scan data of an environment of the vehicle and localization data for the vehicle at a location where the first LIDAR sensor scan was captured are stored. Thereafter, the computing device is suspended and subsequently unsuspended. After the computing device is unsuspended, second LIDAR sensor scan data of the vehicle's environment is received. The first LIDAR sensor scan data is compared to the second LIDAR sensor scan data to determine whether the vehicle has moved. Based on the determination of whether the vehicle has moved from the location, the stored localization data is used to localize the vehicle. Other approaches are also described.

    System and method for determining pose data for a vehicle

    公开(公告)号:US10108192B1

    公开(公告)日:2018-10-23

    申请号:US15883266

    申请日:2018-01-30

    Applicant: Waymo LLC

    Abstract: Example systems and methods are disclosed for determining vehicle pose data for an autonomous vehicle. The vehicle computer system may receive pose data from multiple pose measurement systems of the autonomous vehicle. Each pose measurement system may include one or more corresponding sensors of the autonomous vehicle. The vehicle computer system may determine a pose data quality for the received pose data for each pose measurement system. The vehicle computer system may set the vehicle pose data to the pose data of the pose measurement system with the highest pose data quality. The vehicle computer system may control the autonomous vehicle based on the vehicle pose data.

    Vehicle Collaboration and Sensor Enhancement

    公开(公告)号:US20230347938A1

    公开(公告)日:2023-11-02

    申请号:US18140267

    申请日:2023-04-27

    Applicant: WAYMO LLC

    Abstract: The technology provides enhanced localization approaches using vehicle-obtained information in place of or to enhance global positioning information to localize a user's position. Such information can be shared with the user's client device in real-time prior to pickup or meeting at a selected location. This can supplement or replace inaccurate localization information available at the client device, and can be done as needed when the user is within a threshold range of one or more autonomous vehicles. A client device of a user can compute its position using the vehicle positioning information. The vehicle positioning approach may be performed when the user is within a certain range of one or more vehicles. Vehicle localization information may also be used to correct the client device's localization information. Here, using hyper-accurate vehicle positioning, one or more vehicles can compute pseudorange errors for each “visible” satellite in a global positioning service.

    Localization initialization for autonomous vehicles

    公开(公告)号:US11105927B2

    公开(公告)日:2021-08-31

    申请号:US16204534

    申请日:2018-11-29

    Applicant: Waymo LLC

    Abstract: The technology relates to localizing a vehicle. As one approach, a first LIDAR sensor scan data of an environment of the vehicle and localization data for the vehicle at a location where the first LIDAR sensor scan was captured are stored. Thereafter, the computing device is suspended and subsequently unsuspended. After the computing device is unsuspended, second LIDAR sensor scan data of the vehicle's environment is received. The first LIDAR sensor scan data is compared to the second LIDAR sensor scan data to determine whether the vehicle has moved. Based on the determination of whether the vehicle has moved from the location, the stored localization data is used to localize the vehicle. Other approaches are also described.

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