Cleaning robot and method for controlling the same

A cleaning robot comprising:

• a main body;
• a moving assembly to move the main body;
• a cleaning tool provided at a bottom part of the main body to collect foreign substances on a floor;
• an imager to collect images around the main body;
• and
• a controller to recognize a marker in the collected images, identify a change in position of the marker, plan moving information including a moving direction of the main body and a moving distance of the main body based on the identified change in position, and control operations of the moving assembly and the cleaning tool based on the planned movement information,
• wherein when a virtual wall setting command has been input, the controller:
• recognizes a start position at a start point and an end position at an end point based on an identified change in position for setting up a virtual wall;
• and
• sets up the virtual wall by connecting the start position to the end position based on the identified change in position.