Autonomous mobile robot and system for controlling autonomous mobile robot

A system for controlling an autonomous mobile robot that moves by being guided by a plurality of signs that have a plurality of sizes, are aligned along a movement path, and include a first sign and a second sign, the system for controlling the autonomous mobile robot comprising:

• an imaging unit capturing image data;
• a storage unit storing individual identification information of each of the plurality of signs and an individual actual size of each of the plurality of signs corresponding to the individual identification information;
• and
• a calculation unit detecting the first sign from the image data captured by the imaging unit, acquiring the individual identification information of the first sign, and calculating a distance to the first sign on the basis of a size of the first sign in the image data and the individual actual size of the first sign corresponding to the individual identification information of the first sign.