A docking station including a docking unit providing a traveling path for a robotic vacuum cleaner, having a mounted mopping cloth, that enters the docking unit; a mopping cloth separator disposed on the docking unit and configured to automatically separate the mounted mopping cloth from the robotic vacuum cleaner while the robotic vacuum cleaner is at a first position along the traveling path; and a mopping cloth coupler disposed on the docking unit and configured so that, after the mounted mopping cloth is separated from the robotic vacuum cleaner, and the robotic vacuum cleaner thereafter moves to a second position along the traveling path, the mopping cloth coupler supplies a mopping cloth to be mounted to the robotic vacuum cleaner from below the traveling path while the robotic vacuum cleaner is at the second position.