Patent · US Active

Mobile robot and cliff detection method thereof

US12137855B2 · kind B2 · utility

0Cited by

0References

20Claims

0Family size

Assignee

PIXART IMAGING INC. · TW

Inventors

Keen-Hun Leong · Bukit Mertajam, MY
Sai Mun Lee · Kampung Bukit Kechil, MY
Ching-Geak Chan · Bukit Mertajam, MY

Key dates

Filing date	Jun 22, 2021
Grant date	Nov 12, 2024
Priority date	—
Expiry date	May 22, 2043

Classification

Technology area (CPC G)Physics
CPC primaryG06T2207/30268
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

There is provided a mobile robot including a light source, an image sensor and a processor. The image sensor respectively captures bright image frames and dark image frames corresponding to the light source being turned on and turned off. The processor identifies that the mobile robot faces a cliff when a gray level variation between the bright image frames and the dark image frames is very small, and controls the mobile robot to stop moving forward continuously.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.