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公开(公告)号：US11573104B1
公开(公告)日：2023-02-07
申请号：US17149909
申请日：2021-01-15
Applicant: Waymo LLC
Inventor： Andrew Crawford , Rikard Grunnan
IPC: G01D11/30 , G01S17/86 , G01S7/40 , G01S17/931
Abstract: A portable sensor calibration target includes a frame assembly, a first panel, and a second panel. The frame assembly may include three legs and a plurality of frame edges that is configured to form a first frame and a second frame and is configured to be held at a pre-selected height above ground by the legs. The first panel is removably attached to the first frame in an unfolded position, and includes a plurality of boards and a plurality of hinges connecting the plurality of boards. The first panel is configured to fold at the plurality of hinges into a folded position. The second panel is removably attached to the second frame adjacent to the first frame. The first panel and the second panel meet to form an edge, which is detectable by a detection system of a vehicle for calibrating the detection system.
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Patent Agency Ranking
公开(公告)号：US11327162B1
公开(公告)日：2022-05-10
申请号：US16793463
申请日：2020-02-18
Applicant: Waymo LLC
Inventor： Volker Grabe , Andrew Crawford
IPC: G01S7/497 , G01S17/86 , G01S17/931 , G05D1/02
Abstract: The technology relates to fiducials for calibrating or validating a vehicle's sensors. One or more computing devices receive a plurality of data sets captured by the sensors from the plurality of fiducials. Each of the data sets corresponds to a respective sensor of the plurality of sensors. The one or more computing devices determine whether data in each of the plurality of data sets contains expected data representative of a respective fiducial of the plurality of fiducials. For each of the respective sensors, the one or more computing devices output a calibration status or a validation status associated with each data set that contains the expected data representative of the respective fiducial.
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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
Inventor： Craig Lewin Robinson , Volker Grabe , Colin Braley , Zachary Morriss , Stephanie McArthur , Andrew Crawford
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.
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公开(公告)号：US11341684B1
公开(公告)日：2022-05-24
申请号：US17163772
申请日：2021-02-01
Applicant: Waymo LLC
Inventor： Craig Lewin Robinson , Volker Grabe , Colin Braley , Zachary Morriss , Stephanie McArthur , Andrew Crawford
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.
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公开(公告)号：US10943367B1
公开(公告)日：2021-03-09
申请号：US16032417
申请日：2018-07-11
Applicant: Waymo LLC
Inventor： Craig Lewin Robinson , Volker Grabe , Colin Braley , Zachary Morriss , Stephanie McArthur , Andrew Crawford
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.
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公开(公告)号：US10942045B1
公开(公告)日：2021-03-09
申请号：US15944087
申请日：2018-04-03
Applicant: Waymo LLC
Inventor： Andrew Crawford , Rikard Grunnan
IPC: G01D11/30 , G01S17/86 , G01S7/40 , G01S17/931
Abstract: A portable sensor calibration target includes a frame assembly, a first panel, and a second panel. The frame assembly may include three legs and a plurality of frame edges that is configured to form a first frame and a second frame and is configured to be held at a pre-selected height above ground by the legs. The first panel is removably attached to the first frame in an unfolded position, and includes a plurality of boards and a plurality of hinges connecting the plurality of boards. The first panel is configured to fold at the plurality of hinges into a folded position. The second panel is removably attached to the second frame adjacent to the first frame. The first panel and the second panel meet to form an edge, which is detectable by a detection system of a vehicle for calibrating the detection system.
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