Embodiments of the present disclosure provide a method for controlling an automatic cleaning device, an automatic cleaning device, and a non-transitory storage medium. The method includes: obtaining a position of a working region of the automatic cleaning device; obtaining a reference data associated with the working region based on the position of the working region; obtaining a current environment parameter of the working region; comparing the current environment parameter with the reference data to generate a comparing result; and controlling the automatic cleaning device based on the comparison result.

A system includes a color camera configured to detect visible light and ultraviolet (UV) light, a UV illuminator, and a processor configured to perform operations. The operations include causing the UV illuminator to emit UV light towards a portion of an environment and receiving, from the color camera, a color image that represents the portion illuminated by the emitted UV light and by visible light incident thereon. The operations also include determining a first extent to which UV light is attenuated in connection with pixels of the color camera that have a first color and a second extent to which UV light is attenuated in connection with pixels of the color camera that have a second color. The operations further include generating a UV image based on the color image, the first extent, and the second extent, and identifying a feature of the environment by processing the UV image.

The present disclosure relates to methods for evaluating features of objects such as liquid droplets and surfaces. More particularly, the present disclosure relates to methods for measuring features such as the contact angle and the thickness of an object such as a liquid droplet or a fingerprint as well as related compositions for evaluation.

An apparatus for inspecting a surface comprises a light source and a camera. When a light beam is generated by the light source, a centerline of the light beam is coincident with a line of sight of the camera when viewed in a direction, perpendicular to a first plane that contains one of the centerline of the light beam or the line of sight of the camera. The centerline of the light beam is parallel to the line of sight of the camera when viewed in a direction, perpendicular to a second plane that is perpendicular to the first plane and that contains the centerline of the light beam and the line of sight of the camera.

Methods, systems and apparatus for providing a notification of a wet floor are provided. A scrubbing robot for scrubbing a floor and having one or more liquid carrying components has a sensor coupled to it positioned for collecting data about an area of the floor proximate to the scrubbing robot and along a path over which the robot has travelled. An application is stored on the computer for determining that liquid is on the floor by analysing the data for a presence of a second set of parameters corresponding to or crossing (from above to below or from below to above) a set of threshold parameters that is indicative of the presence of liquid on the floor. A notification module coupled to the scrubbing robot issues at least one of a human detectable and a computer detectable notification in response to the application determining that liquid is on the floor.

A touchscreen device sanitation system and method is provided. A touchscreen device is configured with an illumination system that illuminates an external surface of the touchscreen device with ultraviolet light that kills or inactivates disease agents present on the external surface of the touchscreen device. The illumination system may illuminate the external surface of the touchscreen device indirectly from a position within the touchscreen device or directly from a position above the touchscreen device.

A work machine including a vehicle body configured to travel, a fan, an obstacle detection device, and a controller. The fan is configured to exchange air between an inside and an outside of the vehicle body through an opening provided toward a rear of the vehicle body. The obstacle detection device is installed behind the fan. The obstacle detection device is configured to detect an obstacle in the rear of the vehicle body. The controller is configured to control intake and exhaust of the fan based on a state of the obstacle detection device.

A contaminant detection system includes a light source configured to emit excitation light on an object to be inspected; a detector configured to detect fluorescence emitted from a contaminant adhering to the object to be inspected; and a processor. The fluorescence is caused by emission of the excitation light from the light source onto the object to be inspected. The processor is configured to perform a determination of a location of the contaminant and a type of the contaminant, based on the fluorescence emitted from the contaminant; and output a result of the determination.

One embodiment provides a pyranometer, including: a dome enclosing a cavity; at least one light emitting source arranged such that light exterior to the dome does not directly impinge on the at least one light emitting source; a diffusor; wherein the at least one light emitting source is configured to emit light substantially directed to a portion of the diffusor, and wherein the diffusor is configured to diffuse the light emitted from the at least one light emitting source on an inner surface of the dome; and one or more first light detecting sensors arranged in the cavity and configured to measure an intensity of the light reflected from the dome and impinging on the one or more first light detecting sensors. Other aspects are described and claimed.

The present disclosure provides an inspection system and method for inspecting an optical surface of a laser scanner, the system including a directional optical source and an optical detector. The method includes moving one of the laser scanner or the inspection system to a position in which a beam axis of the directional optical source extends across but does not intersect the optical surface, between the optical surface of and the optical detector. The method further includes emitting a light beam from the directional optical source, across the optical surface so that light from the light beam is incident on debris disposed on the optical surface. The method further includes collecting the light at the optical detector to form an image that indicates presence of the debris on the optical surface of the laser scanner; and generating feedback to alert a user of the presence of the debris.