The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 21, 2024
Filed:
May. 19, 2021
Amazon Technologies, Inc., Seattle, WA (US);
Chen Wang, Fremont, CA (US);
Lei Zhu, Milpitas, CA (US);
Miro Yakov Shverdin, Mountain View, CA (US);
Yue Hu, San Francisco, CA (US);
Isabella Talley Lewis, San Jose, CA (US);
Bruce Robert Woodley, Palo Alto, CA (US);
Daimian Wang, Fremont, CA (US);
AMAZON TECHNOLOGIES, INC., Seattle, WA (US);
Abstract
An autonomous mobile device (AMD) may perform tasks within a physical space. The AMD may move over ramps, bumps, or navigate around obstacles. The AMD may have an inertial measurement unit (IMU) and distance sensors. The IMU provides tilt information indicative of the AMD being on a flat surface or a ramp. The distance sensors provide information on distances between the AMD and surrounding obstacles. Using IMU measurements, the AMD determines a first speed limit that is safe given the tilt of the AMD. Using the distance sensors, the AMD determines a second speed limit that is safe given a distance to an obstacle. The AMD determines a maximum speed based on the first and second speed limits. Based on the maximum speed, the AMD determines whether to adjust a current speed and by how much.