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.

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.