公开(公告)号：US20240353244A1

公开(公告)日：2024-10-24

申请号：US18138723

申请日：2023-04-24

Applicant: TORC Robotics, Inc.

Inventor： Joseph FOX-RABINOVITZ ,  Robert HOLT ,  Alexander LITTLE ,  Matthew MARTI ,  Dietrich LINDE

IPC: G01D18/00

CPC classification number: G01D18/00

Abstract: Disclosed herein are systems, methods, and apparatuses for calibrating sensors of automated vehicles using calibration targets. A bracket holds the calibration targets and attaches to the automated vehicle proximate to a sensor being calibrated. For some sensors, such as GNSS antennas or similar device for receiving location data from a GNSS, a two-target bracket is fixed at the top of the automated vehicle, nearby the GNSS antenna. For IMUs or similar sensors, a three-target bracket is fixed at location of the automated vehicle proximate to the particular IMU, such as a passenger cabin or on the chassis of the automated vehicle. The calibration targets include a retroreflective surface that reflect signals, such as infrared signals, back to a theodolite (or total station). The theodolite or computer includes preprogrammed offset values indicating the relative positions of the sensor being calibrated and each of the calibration targets of the bracket.