Abstract:
An evacuation station includes a base and a canister removably attached to the base. The base includes a ramp having an inclined surface for receiving a robotic cleaner having a debris bin. The ramp defines an evacuation intake opening arranged to pneumatically interface with the debris bin. The base also includes a first conduit portion pneumatically connected to the evacuation intake opening, an air mover having an inlet and an exhaust, and a particle filter pneumatically the exhaust of the air mover. The canister includes a second conduit portion arranged to pneumatically interface with the first conduit portion to form a pneumatic debris intake conduit, an exhaust conduit arranged to pneumatically connect to the inlet of the air mover when the canister is attached to the base, and a separator in pneumatic communication with the second conduit portion.
Abstract:
The present disclosure relates to a method and a system e.g. for mowing grass using a self-propelled robotic tool (14). The robotic tool (14) receives a first signal from a beacon (40) and determines, based on this signal, a distance from the robotic tool to the beacon. The robotic tool moves, for instance based on odometry data generated by the robotic tool itself, along a circular arc (60) corresponding to a circle with a radius equal to the determined distance, and subsequently receives later signals from the beacon and determining the current distance from the beacon to the robotic tool to adjust its direction to maintain a is constant distance to the beacon over a period of time. This makes it possible to mow the grass in an area in a structured and efficient way.
Abstract:
A method of detecting particles in a two-phase stream is disclosed, as well as a vacuum cleaner and a process for controlling or adjusting a vacuum cleaner. The detection of particles, in particular dust particles, in a two-phase stream currently relies on optical detection methods. These optical methods are prone to problems and their resolution is low. With the proposed method, a piezoelectric sensor is used to determine the location and size of the particles. A charge signal generated by the piezoelectric sensor is used to represent the particles detected or for controlling or adjusting the suction power of a vacuum cleaner.
Abstract:
A cleaning device (3) for a sensor preferably for a dust sensor having components namely a light emitter (2a) and a light receiver (2b) placed in a housing (1) is movable within the housing (1) and it comprises a cleaning member (6) that cleans the light emitter (2a) and the light receiver (2b) components when it passes over while the cleaning device (3) is moving within the housing (1), and one or more holes (7) that open the path of the light between light emitter (2a) and light receiver (2b) components when the cleaning device (3) comes to its fixed position within the housing (1). The cleaning device (3) is used in a vacuum cleaner (10) having a hose (8) and a vacuum cleaner body (9). The cleaning device (3) is placed in the outlet of the hose (8) in order to clean the light emitter (2a) and the light receiver (2b) components placed in the housing (1) located in the inlet of the vacuum cleaner body (9), when the lose (8) is engaged into the vacuum cleaner body (9).