Abstract: An automatic cleaning apparatus that comprises a mobile platform configured to move automatically on an operation surface; a cleaning module disposed on the mobile platform and comprising: a dry-cleaning module configured to clean at least a part of the operation surface by means of dry cleaning; a wet-cleaning module configured to clean at least a part of the operation surface by means of wet cleaning; and a lifting and lowering structure connected to the dry-cleaning module or the wet-cleaning module and configured to enable the dry-cleaning module or the wet-cleaning module to move vertically relative to the mobile platform. The wet-cleaning module comprises: a cleaning head for cleaning the operation surface, and a driving unit for driving the cleaning head to reciprocate along a target surface, and the target surface is a part of the operation surface.

Abstract: This application discloses a method and an apparatus for selecting a face image, a device, and a storage medium and relates to the field of artificial intelligence technologies. The method includes detecting, after a frame of face image is obtained, whether the face image meets a preliminary quality screening condition; determining, in response to a first face image meeting the preliminary quality screening condition, an overall quality score of the first face image, the overall quality score representing overall quality of the face image; and transmitting the first face image to a face recognition process in response to the overall quality score of the first face image being greater than a level-one threshold.

Abstract: A base station for cleaning a cleaning system of a cleaning robot is provided. The base station includes a base station body, a cleaning assembly and at least one track-cleaning member. The base station body is provided with at least one track groove. The cleaning assembly is configured to run along the at least one track groove and is provided with a cleaning member. The cleaning member is configured to clean the cleaning system of the cleaning robot by interfering with the cleaning system of the cleaning robot. The at least one track-cleaning member is configured to run along the at least one track groove to clean the at least one track groove.

Abstract: An automatic cleaning device includes a mobile platform configured to automatically move on an operating surface, and a cleaning module assembled to the mobile platform and configured to clean the operating surface. The cleaning module includes: a first roller brush arranged in a direction perpendicular to an axis of the mobile platform, where the first roller brush includes at least one first long brush component; and a second roller brush arranged side by side with the first roller brush, where the second roller brush includes at least one second long brush component. The first long brush component and the second long brush component are configured to interfere with each other, enabling an air inlet channel between the first roller brush and the second roller brush to be at least partially shielded.

Abstract: Provided are compositions and methods for producing modified avian animals such as modified female chickens. The modified female chickens have a modified Z chromosome that includes a sequence encoding a toxin, expression of which is under control of a promoter configured so that expression of the toxin is lethal to an oocyte, zygote or embryo that has the Z? chromosome. The modified Z? chromosome may also include a sequence encoding an anti-toxin that mitigates lethality of the toxin to permit development of a male chicken from an egg fertilized by the oocyte or a zygote that has the Z? chromosome.

Abstract: A cleaning robot includes a machine body, a driving system, and a cleaning system. The driving system is disposed on the machine body and is configured to drive the cleaning robot to operate on a cleaning surface. The cleaning system is disposed on the machine body, the cleaning system includes a main cleaning assembly disposed in parallel relative to the cleaning surface, and the main cleaning assembly is movably disposed relative to the machine body, such that at least part of the main cleaning assembly is capable of extending from a circumferential outer edge of the machine body.

Abstract: A cleaning module member includes: a first rolling brush including a first brush; and a second rolling brush arranged substantially side by side with the first rolling brush and including a second brush. The first brush and the second brush are distributed in rotational-mirror symmetry.

Abstract: An automatic water replacement assembly includes a control apparatus and a water tank assembly, where the control apparatus is configured to realize automatic replenishment of clean water to, automatic discharge of sewage from or automatic replenishment of a cleansing liquid to the water tank assembly, and the water tank assembly is configured to be assembled inside a water storage chamber of a self-cleaning maintenance station; the water tank assembly includes a sewage tank, a clean water tank and a water tank top shell; the water tank top shell substantially covers the sewage tank and the clean water tank, and the water tank top shell; the sewage tank and the clean water tank form an integrated structure; and, a part of a tank body of the water tank assembly is located outside the water storage chamber when the water tank assembly is assembled inside the water storage chamber of the self-cleaning maintenance station.

Abstract: A cleaning brush and an automatic cleaning device are provided. The cleaning device includes: a rigid shaft rod having a first end portion and a second end portion opposite to each other in an axial direction; and a brush member coaxially sleeving an outer side of the rigid shaft rod, where a rigid filler or no filler is provided between the brush member and the rigid shaft rod.

Abstract: The present disclosure provides a self-cleaning maintenance station including a maintenance station base plate, a maintenance station body, a clean water tank, and a cleaning solution tank. The present disclosure also provides a self-cleaning maintenance system, comprising an automatic cleaning device and a self-cleaning maintenance station.

Abstract: A robotic arm, includes a support arm, a connecting arm, a working arm and two first robotic joints, where a first end of the connecting arm is connected to the support arm by one of the first robotic joints, so that the connecting arm is foldable or unfoldable relative to the support arm; a second end of the connecting arm is connected to the working arm by the other first robotic joint, so that the working arm is foldable or unfoldable relative to the connecting arm; bent structures are arranged at two ends of the connecting arm respectively, and the two bent structures are engaged in a convex-concave shape fit with the support arm and the working arm respectively when the connecting arm is in a folded state relative to both the support arm and the working arm.

Abstract: A self-cleaning maintenance station is for an automatic cleaning apparatus, and includes a self-cleaning maintenance station body. The self-cleaning maintenance station body includes: an accommodating cavity, which is configured to accommodate at least part of the automatic cleaning apparatus when the automatic cleaning apparatus returns to the self-cleaning maintenance station; a body base, which is configured to support at least part of the automatic cleaning apparatus when the automatic cleaning apparatus returns to the self-cleaning maintenance station, wherein the body base is provided with a cleaning tank facing the accommodating cavity; and a drying fan, which is arranged in the self-cleaning maintenance station body, is located on the side of the accommodating cavity away from the body base, and is configured to push a dry airflow to at least part of the cleaning tank so as to dry the cleaning tank.

Abstract: A self-moving cleaning device includes a device main body and a mechanical arm. The device main body includes a holding chamber, two driving wheels and a driven wheel are distributed at a bottom of the device main body in the form of a triangle, and the mechanical arm is foldably held in the holding chamber. The mechanical arm comprises a rotatable base, and a projection of the rotatable base in a horizontal plane is located inside a projection of the triangle in the horizontal plane.

Abstract: An automatic cleaning device, including: a moving platform, which is configured to move on an operating surface; and a cleaning module which is assembled on the moving platform and is configured to clean the operating surface. The cleaning module includes: a first rolling brush, which is arranged in a first direction perpendicular to the front-rear axis of the moving platform, the first rolling brush including a first filler, and the first filler being arranged in an axial direction of the first rolling brush; and a second rolling brush which is arranged in a direction parallel to the first rolling brush, the second rolling brush including a second filler, and the second filler being arranged in an axial direction of the second rolling brush, wherein the modulus of elasticity of the first filler is less than the modulus of elasticity of the second filler.

Abstract: A cleaning robot is provided. The cleaning robot includes: a robot body; a driving system; a cleaning system including a cleaning head and a liquid supply part, the liquid supply part feeding a cleaning liquid into the cleaning head; a recovery system including a collecting part and a scraper bar, the scraper bar being in contact with the cleaning head and configured to remove residues from the cleaning head by interfering with the cleaning head; a detection system arranged on the robot body in a retractable manner; and a control system connected to the cleaning system, the driving system, and the detection system, the control system being configured to control at least one of the cleaning system and the driving system according to information fed back by the detection system.

Abstract: A cleaning module includes: a first rolling brush including a first brush member, the first brush member including first brushes configured to be rotatable in a first rotational direction to form a first brush outer end trajectory; and a second rolling brush arranged substantially side by side with the first rolling brush and including a second brush member, the second brush member including second brushes configured to be rotatable in a second rotational direction to form a second brush outer end trajectory, wherein the first brush outer end trajectory and the second brush outer end trajectory form an interfering region, and a distance between at least one of the first brushes and at least one of the second brushes is greater than zero when the at least one of the first brushes and the at least one of the second brushes rotate into the interfering region.

Abstract: Provided is an automatic cleaning device, including: a mobile platform configured to move automatically on an operating surface; and a cleaning module arranged on the mobile platform. The cleaning module includes a dry-cleaning module configured to clean at least a part of the operating surface by means of dry cleaning; and a wet-cleaning module configured to clean at least a part of the operating surface by means of wet cleaning. The wet-cleaning module includes a cleaning head configured to clean the operating surface; and a driving unit configured to drive the cleaning head to substantially reciprocate along a target surface, the target surface being a part of the operating surface. The driving unit includes a driving platform and a supporting platform detachably connected to the driving platform.

Abstract: A cleaning module includes: a first rolling brush including first brushes; and a second rolling brush arranged substantially side by side with the first rolling brush and including second brushes, wherein when the first rolling brush and the second rolling brush rotate, a first outer contour formed by a trajectory of outer ends of the first brushes and a second outer contour formed by a trajectory of outer ends of the second brushes at least partially interfere with each other, and the first brushes are not in contact with the second brushes.