公开(公告)号：US20220206509A1

公开(公告)日：2022-06-30

申请号：US17138946

申请日：2020-12-31

Applicant: UBTECH NORTH AMERICA RESEARCH AND DEVELOPMENT CENTER CORP ,  UBTECH ROBOTICS CORP LTD

Inventor： Dejun Guo ,  Dan Shao ,  Yang Shen ,  Kang-Hao Peng ,  Huan Tan

IPC: G05D1/02

Abstract: A mobile robot control method includes: acquiring a first image that is captured by a camera on a robot when the robot is in a desired pose; acquiring a second image that is captured by the camera on the robot when the robot is in a current pose; extracting multiple pairs of matching feature points from the first image and the second image, and projecting the extracted feature points onto a virtual unitary sphere to obtain multiple projection feature points, wherein a center of the virtual unitary sphere is coincident with an optical center of coordinates of the camera; acquiring an invariant image feature and a rotation vector feature based on the multiple projection feature points, and controlling the robot to move until the robot is in the desired pose according to the invariant image feature and the rotation vector feature.

公开(公告)号：US20210347060A1

公开(公告)日：2021-11-11

申请号：US16923069

申请日：2020-07-07

Applicant: UBTECH ROBOTICS CORP LTD

Inventor： Marten Byl ,  Chengkun Zhang ,  Raymond Ma ,  Muhammed Rasid Pac ,  Huan Tan ,  Youjun Xiong

IPC: B25J11/00 ,  B25J5/00 ,  B25J9/12 ,  B25J9/00 ,  B65G1/02 ,  B25J9/10 ,  B65G61/00 ,  B25J19/00 ,  B25J19/02 ,  B25J9/16

Abstract: A robotic assistant includes a wheeled base, a storage unit including drawers, a foldable arm connected to a top of the storage unit and including an end of arm tooling (EOAT) connected to a distal end of the foldable arm, an elevation mechanism positioned on the wheeled base and used to move the storage unit up and down, and a control system that receives command instructions. In response to the command instructions, the control system is configured to move the wheeled base, open or close the one or more drawers, actuate movement of the foldable arm and the EOAT to pick up and place external objects from/to a determined location, and control the storage unit to move up/down.