公开(公告)号：US20210048831A1

公开(公告)日：2021-02-18

申请号：US16993325

申请日：2020-08-14

Applicant: LG ELECTRONICS INC.

Inventor： Hyungtae YUN ,  Byounghee KIM

IPC: G05D1/02 ,  B25J9/16 ,  G05D1/00

Abstract: A mobile robot includes a body, a propulsion module, an ultrasound sensor module that is configured to detect a boundary of a cleaning area using a sound wave, and a controller configured to control the propulsion module based on the determined boundary. The ultrasound sensor module may include an ultrasonic sensor unit and a boundary detector. The sensor unit may emit the sound wave, receive the reflected sound wave from a target, and output a sound wave signal. And, the boundary detector may analyze the sound wave signal to detect the boundary of the cleaning area.