US Patent 9527212 Method for automatically triggering a self-positioning process

A mobile self-propelled robot for autonomously carrying out actions. The robot includes a drive module for moving the robot over a floor area; a processing module for carrying out the activities during a processing stage; at least one sensor module for detecting information relating to the structure of the surroundings; a detector module configured to detect a displacement of the robot prior to or during the processing stage. Further, the robot includes a navigation module configured to navigate the robot over the floor area during the processing stage using a map of the surroundings, to store and manage one or more maps of the surroundings, and to carry out a self-positioning process if the detector module has detected a displacement of the robot. During the self-positioning process, the presence and the location of the robot within the stored maps are detected.