Robot, system comprising robot and user device and controlling method thereof

A system comprising a robot comprising a plurality of sensors, and a user terminal, the system comprising:

• the user terminal configured to, based on a user command for performing calibration for the sensors provided in the robot being input, transmit the user command to the robot;
• and
• the robot configured to:
• based on the user command being received from the user terminal, identify whether it is necessary to perform calibration for at least one sensor of the plurality of sensors based on a plurality of images obtained from the plurality of sensors while the robot moves to a predetermined point and is located at the predetermined point, and
• based on identifying that it is necessary to perform the calibration for the at least one sensor, obtain calibration data for calibrating sensing data corresponding to the at least one sensor based on the plurality of images and store the obtained calibration data in a memory.

A method for controlling a robot, the method comprising:

• based on identifying that a predetermined event has occurred, moving the robot to a predetermined point;
• based on identifying that the robot has moved to the predetermined point, obtaining a plurality of images through a plurality of sensors;
• identifying whether it is necessary to perform calibration for at least one sensor of the plurality of sensors based on the obtained plurality of images;
• based on identifying that it is necessary to perform the calibration for the at least one sensor, obtaining and storing calibration data to calibrate sensing data corresponding to the at least one sensor based on the plurality of images;
• based on the sensing data being obtained from the at least one sensor, calibrating the obtained sensing data based on the stored calibration data;
• and
• driving the robot based on the calibrated sensing data.