Patent ID: 7561941

Claim:
An ambulatory robot including a lower body part having two or more legs and an upper body part installed on an upper end of the lower body part and capable of performing positional displacement by moving the lower body part, the ambulatory robot comprising: slope-detection means for sensing a slope of a floor, the slope of the floor being defined only directly under the two or more legs of the ambulatory robot; rotating means installed on a bottom surface of each of the two or more legs; and control means for controlling a motion of the ambulatory robot using the lower and upper body parts, wherein the control means controls a speed of revolution of the rotating means and a speed of motion of the two or more legs of the ambulatory robot based on the slope of the floor, the control means being configured to vary the speed of motion of the two or more legs between at least three different values based on the slope of the floor, and wherein the control means controls the motion of the ambulatory robot so that the positional displacement of the ambulatory robot is performed by any of running, walking and sliding, depending on the controlled speed of revolution and on the speed of motion of the two or more legs.