ROBOT AND CONTROL METHOD THEREFOR

A robot is disclosed. The robot comprises: a memory that stores first map data corresponding to a first region of a specific space; a distance sensor; and a processor. The processor may: if second map data is acquired while the robot is travelling in the specific space, compare the second map data with the first map data; and if it is identified, as the result of the comparison, that there is no error in the second map data and the second map data includes information regarding a second region other than the first region, update the first map data on the basis of the second map data.