Recalibration determination system for autonomous driving vehicles with multiple LiDAR sensors
US11703577B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 14, 2020 |
| Grant date | Jul 18, 2023 |
| Priority date | — |
| Expiry date | May 2, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S17/931
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Described herein are various embodiments for identifying miscalibrations in LiDAR sensors installed on an ADV in real time while the ADV is in motion, and notifying a user that the LiDAR sensors needs to be recalibrated. An exemplary method includes calculating an initial number of overlapping cloud points between the cloud point data from a first LiDAR sensor and a second LiDAR sensor; and replacing a set of existing calibration parameters of the second LiDAR sensor with multiple sets of recalibration parameters to calculate multiple revised numbers of overlapping cloud points between the point cloud data. A potential miscalibration can be detected in the first LiDAR sensor or the second LiDAR sensor when the initial number of overlapping cloud points is smaller than at least one revised number of overlapping cloud points. The potential miscalibration can be verified by repeating the above operations multiple times with a time of time following each repetition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.