Abstract
A robot includes: a sensor configured to detect an external environment within a viewing zone of the a sensor; memory storing information on a travel space including a privacy protection zone; and a processor configured to: identify whether the viewing zone will be within a predetermined distance from the privacy protection zone while the robot travels along a travel path in the travel space; based on identifying that the viewing zone will be within the predetermined distance, determine whether the viewing zone will overlap with the privacy protection zone based on the travel path; and based on determining that the viewing zone will overlap with the privacy protection zone, change a heading direction of the robot from a first heading direction to a second heading direction to prevent the viewing zone from overlapping with the privacy protection zone.