Abstract: The invention is related to a system for controlling a robot collision with an obstacle, characterized by having an electronics system (1), and at least one accelerometer (3), that is fixed to a robot and is connected with an electronics system (1), that is configured or programmed in such a way that upon a signal from an accelerometer (3) a robot heading direction or velocity is changed or a robot is stopped. In addition, the invention comprises a robot equipped with such an electronics system, and a method of controlling a robot collision with an obstacle.

Abstract: The present invention is a brush for a vacuum cleaner comprising a disc designed to mount brush to vacuum cleaner characterized in that the brush disc (10) is equipped with the permanent magnet (9), facing one of its magnetic poles in the vacuum cleaner direction. Furthermore, the invention comprises the brush attaching assembly, especially the rotary brush of the vacuum cleaner, characterized in that it is equipped with the permanent magnet (9) facing one of its magnetic poles in the brush direction and a vacuum cleaner which is equipped with the described brush attaching assembly.