Abstract: A robot cleaner and a traveling algorithm of the robot cleaner having wheels capable of moving in all directions to have enhanced traveling ability in various directions includes a body unit, a sensor provided to be rotatable with respect to the body unit to sense obstacles, a multi-directional moving wheel provided at a lower portion of the body unit to move the body unit in various directions, and a controller configured to determine a traveling route of the robot cleaner to avoid the detected obstacles and control the multi-directional moving wheel when the traveling route is determined so that the robot cleaner moves to the determined traveling route in a state where the body unit is not rotated.

Abstract: A robot cleaner and a traveling algorithm of the robot cleaner having wheels capable of moving in all directions to have enhanced traveling ability in various directions includes a body unit, a sensor provided to be rotatable with respect to the body unit to sense obstacles, a multi-directional moving wheel provided at a lower portion of the body unit to move the body unit in various directions, and a controller configured to determine a traveling route of the robot cleaner to avoid the detected obstacles and control the multi-directional moving wheel when the traveling route is determined so that the robot cleaner moves to the determined traveling route in a state where the body unit is not rotated.

Abstract: A portable terminal including a projector which projects a user interface (UI) onto an object, and a method of controlling the same. The portable terminal includes a display which displays a first UI and at least one projector which projects a second UI onto an object, and the at least one projector includes a light source which displays the second UI through a plurality of organic light-emitting diodes (OLEDs) and a lens which focuses light generated in the plurality of OLEDs and projects the light onto the object.

Abstract: A wearable device and a control method of the wearable device includes a replaceable fixing unit configured to transfer pre-stored user interface (UI) data to a main unit, and the main unit configured to provide interaction according to the transferred UI data.