METHOD OF DETECTING A DIFFERENCE IN LEVEL OF A SURFACE IN FRONT OF A ROBOTIC CLEANING DEVICE

摘要

A method for a robotic cleaning device of detecting a difference in level of a surface in front of the robotic cleaning device moves. The method includes illuminating the surface with light, capturing an image of the surface, detecting a luminous section in the captured image caused by the light, identifying at least a first segment and a second segment representing the detected luminous section, and detecting, from a positional relationship between the identified first and second segment, the difference in level of the surface.