| 摘要 |
The invention relates to a method for cleaning of indoor or outdoor areas by operating a dirt stop surface, comprising the steps of dividing the dirt stop surface (1) into surface units (4), dispensing a fluid flow on the surface to be cleaned, while the proximity of the surface to be cleaned is sensed separately for each surface unit (4), and the fluid is dispensed from the surface units (4) of the dirt stop surface in a selective manner such that only the surface units (4) in the proximity of which the presence of the surface to be cleaned has been sensed are applied for dispensing the fluid. The invention relates further to a dirt stop surface unit and a dirt stop surface assembled therefrom that is capable of carrying out the method.
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