Abstract: A robot positioning system having a camera, a processing unit and at least a first line laser. The first line laser is arranged to illuminate a space by projecting vertical laser beams within field of view of the camera. The camera is arranged to record a picture of the space illuminated by the vertical laser beams, and the processing unit is arranged to extract, from the recorded picture, image data representing a line formed by the vertical laser beams being reflected against objects located within the space. The processing unit is further arranged to create, from the extracted line, a representation of the illuminated space along the projected laser lines, in respect of which the robot is positioned. Methods of positioning a robot are also provided.

Abstract: A method of operating a robotic cleaning device over a surface to be cleaned, the method being performed by the robotic cleaning device. The method includes: following a boundary of a first object while registering path markers including positional information at intervals on the surface; tracing previously registered path markers at an offset upon encountering one or more of the previously registered path markers; and switching from tracing the previously registered path markers to following an edge of a second object upon detection of the second object.

Abstract: A robotic cleaning device and a method for operating the robotic cleaning device to detect a structure of a surface over which the robotic cleaning device moves. The method includes illuminating the surface with structured vertical light, capturing an image of the surface, detecting at least one luminous section in the captured image, and determining, from an appearance of the at least one luminous section, the structure of the surface.

Abstract: The invention relates to a robotic cleaning device having a main body, a cleaning portion configured to clean a floor of an area of interest, and a propulsion system configured to move the robotic cleaning device across a surface of the area. The robotic cleaning device may further include an obstacle detecting device and a processing unit, the processing unit being configured to control the propulsion system, wherein the obstacle detecting device is configured to monitor a perimeter of at least part of the area and to follow and continuously record a position of an object, while the object is moving along the perimeter. The processing unit is configured to create positional data of the perimeter out of the continuously recorded positions.

Abstract: A robotic vacuum cleaner having a nozzle inlet facing a surface to be cleaned, and a rotatable side brush. The rotatable side brush has bristles extending substantially in parallel with the surface to be cleaned, and the nozzle inlet includes a frame structure forming an opening, the opening being arranged in fluid communication with a debris receptacle. The bristles extend over a side portion of the nozzle inlet. The frame structure has a base portion extending substantially in parallel with the surface to be cleaned. The base portion extends at a first level. The frame structure at the side portion extends substantially in parallel with the surface to be cleaned at a second level. The first level is arranged closer to the surface to be cleaned than the second level.

Abstract: A robotic cleaning device having a main body, a propulsion system, a contact detecting portion connected to the main body, a dead reckoning sensor operatively connected to the propulsion system and an obstacle detecting device comprising a camera and a first structured light source arranged at a distance from each other on the main body. The robotic cleaning device may further include a processing unit arranged to control the propulsion system. The obstacle detecting device and the processing unit are arranged to estimate a distance to the landmark and to subsequently move the robotic cleaning device into contact with the landmark while measuring an actual distance to the landmark, whereby the actual distance is then compared with the estimated distance to determine a measurement error.

Abstract: A device (5), arranged for fluid communication with a washing chamber (2) of a dishwasher (1), the device further being arranged to allow a passage of air (9) between the washing chamber and the device, the device comprising a drying material (10) arranged in a bed (11), the drying material being able to withdraw moisture from the air passing through the bed during a withdrawal step, and release moisture to the air during a regeneration step, a heating element (13) arranged in the bed arranged to heat the drying material during the regeneration step such that moisture is released from the drying material, and a fan (14), arranged to circulate the air between the device and the washing chamber such that the air flow rate during the withdrawal step is higher than the air flow rate during the regeneration step by altering the fan speed.

Abstract: A method of controlling rotating side brushes of a robotic cleaning device and a robotic cleaning device performing the method. The robotic cleaning device has a main body, a propulsion system arranged to move the robotic cleaning device across a surface to be cleaned, and a controller arranged to control the propulsion system to move the robotic cleaning device across the surface to be cleaned in accordance with navigation information. The robotic cleaning device has an opening arranged in a bottom side of the main body via which debris is removed from the surface to be cleaned, and at least one rotating side brush adjacent to the opening. The controller registers a speed with which the robotic cleaning device moves across the surface to be cleaned, and controls a rotational speed of the rotating side brush on the basis of the registered speed of movement of the robotic cleaning device.

Abstract: The invention relates to a robotic cleaning device having a main body, a cleaning portion configured to clean a floor of an area of interest, and a propulsion system configured to move the robotic cleaning device across a surface of the area. The robotic cleaning device may further include an obstacle detecting device and a processing unit, the processing unit being configured to control the propulsion system, wherein the obstacle detecting device is configured to monitor a perimeter of at least part of the area and to follow and continuously record a position of an object, while the object is moving along the perimeter. The processing unit is configured to create positional data of the perimeter out of the continuously recorded positions.

Abstract: A robotic cleaning device having a main body, a propulsion system configured to move the device across a surface and an obstacle detecting device configured to detect obstacles. The device further includes a processing unit configured to position the robotic cleaning device with respect to the detected obstacles from obstacle detecting device output data, and further to control the propulsion system to move the robotic cleaning device across the surface. The processing unit is configured to identify a landmark and its position from the obstacle detecting device output data, to derive at least one characteristic from the landmark to create and store a generated landmark signature. The processing unit is also configured to compare the generated landmark signature with predetermined landmark signatures and to determine whether the generated landmark signature matches one of the predetermined landmark signatures or not and operate the robotic cleaning device based on the determination.

Abstract: A robotic cleaning device having a main body , an opening in a bottom side of the main body for removing debris from an area to be cleaned, a brush adjacent to the opening and a propulsion system configured to move the robotic cleaning device across the area. The robotic cleaning device may further include a positioning system having an obstacle detecting device configured to detect obstacles and a processing unit. The obstacle detecting device is configured to record positional data, and the processing unit is configured to generate a cleaning pattern from the positional data, the cleaning pattern including at least one spiral pattern having an outer periphery. The spiral pattern is arranged so that the robotic cleaning device spirals inwards from the outer periphery towards a centre of the spiral pattern, and the brush faces the outer periphery while the robotic cleaning device follows the spiral pattern.

Abstract: A robotic cleaning device having a body, and an obstacle detecting device configured to obtain data from a vicinity of the robotic cleaning device. The robotic cleaning device further has a propulsion system configured to drive the robotic cleaning device across a surface to be cleaned, and a cleaning member. The device also has a processing unit arranged to extract at least one feature from data obtained by the obstacle detecting device, compare the attained feature with stored features and when the attained feature matches one of the stored features, deduce a position of the robotic cleaning device.

Abstract: A robotic cleaning device having main body, at least one driving wheel to move the robotic cleaning device across a surface to be cleaned, and a brush for removing debris from the surface to be cleaned. The brush is arranged on a protrusion in a front end portion of the main body. The widest part of the main body is located between the protrusion and the opposite sidewall of the main body, and within the front end portion of the main body.

Abstract: A robotic cleaning device including a main body having a front end portion with a front end wall, a rear end portion, a right side wall connecting the front end wall and the rear end portion and a left side wall connecting the front end wall and the rear end portion. At least one driving wheel is arranged to move the robotic cleaning device across a surface to be cleaned. A cleaning member is arranged at a bottom side of the main body for removing debris from the surface to be cleaned, the cleaning member being arranged in the front end portion of the main body. The main body is arranged such that its width is greatest between the right side wall and the left side wall, and the greatest width is located at the front end portion of the main body.

Abstract: A wash arm arrangement (20) for a dishwasher is disclosed which has a central arm (21) adapted to be rotatably connected with a first shaft (23) through which liquid under pressure is fed into said central arm during operation. A satellite arm (22) is rotatably connected with a second shaft (24) arranged on the central arm, and which is arranged separated a first radial distance rcs from the axis of rotation of the central arm. The second shaft supplies liquid to the satellite arm during operation. To provide the liquid to a washing area of the dishwasher, the satellite arm comprises at least one outer nozzle (25) for providing liquid to a washing area of the dishwasher.

Abstract: A robot positioning system having a camera, a processing unit and at least a first line laser. The first line laser is arranged to illuminate a space by projecting vertical laser beams within field of view of the camera. The camera is arranged to record a picture of the space illuminated by the vertical laser beams, and the processing unit is arranged to extract, from the recorded picture, image data representing a line formed by the vertical laser beams being reflected against objects located within the space. The processing unit is further arranged to create, from the extracted line, a representation of the illuminated space along the projected laser lines, in respect of which the robot is positioned. Methods of positioning a robot are also provided.

Abstract: A wash arm arrangement (20) for a dishwasher is disclosed. The wash arm arrangement comprises a central arm (21) adapted to be rotatably connected with a first shaft (23) through which liquid under pressure is fed into the central arm during operation. A second shaft (24) is arranged on the central arm to provide liquid to a satellite arm (22) which is rotatably connected with the second shaft. The satellite arm comprises a collimating nozzle (25) with an exit. The collimating nozzle is arranged for providing a collimated jet for distributing liquid to a washing area of the dishwasher. The inventive concept is based on an understanding that by utilizing a collimated liquid jet with sufficient pressure and flow a good cleaning performance is achieved with a reduced water consumption.

Abstract: A vacuum cleaner filter assembly having at least one dust collecting chamber adapted to be coupled to a cyclonic dust separation unit, and a filter unit attached to and extending from the dust collecting chamber.

Abstract: A wash arm arrangement (100) for a dishwasher is disclosed. The wash arm arrangement comprises a central arm (121) adapted to be rotatably connected with a first liquid supply shaft (123) for providing pressurized liquid during operation of the dishwasher. The central arm has a first nozzle (130) arranged for outputting a jet of liquid during operation thereby providing a first reaction force Fc for rotating the central arm about its axis of rotation in a first direction. The wash arm arrangement further comprises a satellite arm (122) rotatably arranged on a second liquid supply shaft (124) arranged on an outer end of the central arm, the satellite arm having a second nozzle (131) arranged for outputting a jet of liquid during operation thereby providing a second reaction force Fs for rotating the satellite arm about its axis of rotation in a second direction being opposite to the first direction.

Abstract: A vacuum cleaner with a vacuum, a filtering unit, a switching device for switching between a vacuum cleaning and filter cleaning modes, and a separating unit is disclosed. In the vacuum cleaning mode, the vacuum forces a first air stream in a first air stream path through the filtering unit, in a first direction, to filter out dust from the dust laden air stream. In the filter cleaning mode, the vacuum forces a second air stream in a second air stream path through the filtering unit, in a second direction reverse to the first direction, to remove dust from the filtering unit. In the filter cleaning mode, the separating unit is in the air path between the vacuum and the filtering unit to separate dust removed from the filtering unit. In the vacuum cleaning mode, the separating unit is not in an air stream path.