Patent · US Active

System for obstacle avoidance by autonomous mobile device

US11429110B1 · kind B1 · utility

3Cited by

0References

20Claims

0Family size

Assignee

AMAZON TECHNOLOGIES, INC. · US

Inventors

Roger Robert Webster · Los Altos, US
Rajasimman Madhivanan · Sunnyvale, US
Madan Jayaprakasam · Fremont, US

Key dates

Filing date	May 24, 2019
Grant date	Aug 30, 2022
Priority date	—
Expiry date	Jan 5, 2041

Classification

Technology area (CPC G)Physics
CPC primaryG06V20/58
WIPO fieldControl
WIPO sectorInstruments

Abstract

An autonomous mobile device (AMD) moves through a physical space without human intervention. Data from sensors on the AMD are used to determine an occupancy map indicative of obstacles and their locations in the physical space. A navigation map is created from the occupancy map by inflating the apparent size of the obstacles indicated by the occupancy map. In one implementation the inflation process dynamically skips some portions of the occupancy map based on the presence of an obstacle and a designated inflation distance. The extent of the inflation is based on a size of the AMD. The navigation map is then used for path planning.

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