Method and system for calibrating a light-curtain
US12292535B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 7, 2023 |
| Grant date | May 6, 2025 |
| Priority date | — |
| Expiry date | Nov 7, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05D1/024
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of calibrating a light-curtain system of an autonomous mobile robot (AMR) is provided. The method includes providing a scanner set at a height above a ground surface and outputting a laser scanning beam downwardly reflect from at least one mirror; providing and/or determining initial mirror angles, mirror positions, and lidar height; calculating a lidar height from scanner data; determining a gradient vector as a byproduct of the lidar height calculating; adjusting mirror angles, mirror positions, and lidar height in a direction opposite of the gradient vector; assessing of the adjusted mirror angles, mirror positions, and lidar height are equal to or less than thresholds; and if so, storing the mirror angles, mirror positions, and lidar height and/or values representing a ground plane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.