Abstract: The present disclosure provides a method for controlling a robot cleaner including a travel operation in which the robot cleaner travels, a recognition operation in which when the robot cleaner contacts an obstacle during the travel, the robot cleaner determines whether the obstacle is pushed by the robot cleaner and slides, and an obstacle bypass operation in which upon determination that the obstacle is the pushed-and-sliding obstacle, the robot cleaner stops the travel and then bypasses the pushed-and-sliding obstacle.

Abstract: In a moving robot and a control method according to the present disclosure, an obstacle is detected using structured light irradiated in a predetermined type of light pattern in a traveling direction while traveling, and a specified operation is performed in response to the obstacle. Moreover, a dangerous obstacle is recognized by extracting changes over time using a plurality of images for an obstacle or a low obstacle that is difficult to determine as detected data, and thus, it is possible to improve accuracy according to the determination of the obstacle, improve a corresponding operation according to the obstacle, minimize the uncleaned area while preventing restraint due to the obstacle, and improve the cleaning performance.

Abstract: Provided are package-on-package (POP)-type semiconductor packages including a lower package having a first size and including a lower package substrate in which a lower semiconductor chip is, an upper redistribution structure on the lower package substrate and the lower semiconductor chip, and alignment marks. The packages may also include an upper package having a second size smaller than the first size and including an upper package substrate and an upper semiconductor chip. The upper package substrate may be mounted on the upper redistribution structure of the lower package and electrically connected to the lower package, and the upper semiconductor chip may be on the upper package substrate. The alignment marks may be used for identifying the upper package, and the alignment marks may be below and near outer boundaries of the upper package on the lower package.

Abstract: The present specification relates to a mobile robot and a control method therefore, in which the mobile robot generates virtual floor surface information about a travelling environment by accumulating, for a certain time, the results of sensing via a camera sensor to improve the accuracy of obstacle detection using the camera sensor, detects whether or not there is an obstacle in the travelling environment, on the basis of the floor surface information, and controls travel according to the result of the detection.

Abstract: An artificial intelligence (AI) mobile robot and a method of controlling the same for learning an obstacle are configured to capture an image while traveling through an image acquirer, to store a plurality of captured image data, to determine an obstacle from image data, to set a response motion corresponding to the obstacle, and to operate the set response motion depending on the obstacle, and thus, the obstacle is recognized through the captured image data, the obstacle is easily determined by repeatedly learning an image, and the obstacle is determined before the obstacle is detected or from a time point of detecting the obstacle to perform an operation of a response motion, and even if the same detection signal is input when a plurality of different obstacles is detected, the obstacle is determined through the image and different operations are performed depending on the obstacle to respond to various obstacles, and accordingly, the obstacle is effectively avoided and an operation is performed depending o

Abstract: A rotary compressor may include a cylinder having an inner peripheral surface defined in an annular shape to define a compression space, and a suction port that extends in a lateral direction to communicate with the compression space and through which refrigerant is suctioned into the compression space; a roller rotatably provided in the compression space of the cylinder, and having a plurality of vane slots that provides a back pressure at one side thereinside provided at a predetermined interval along an outer peripheral surface of the roller; a plurality of vanes slidably inserted into the plurality of vane slots, respectively, to rotate together with the roller, front end surfaces of which come into contact with the inner peripheral surface of the cylinder due to the back pressure to partition the compression space into a plurality of compression chambers; and a main bearing and a sub bearing provided at ends of the cylinder and in contact with surfaces of the plurality of vanes, respectively, and spaced

Abstract: An electronic device may include: a display having at least one hole disposed in at least a part thereof such that light from the outside can be transmitted therethrough; a light-emitting element disposed under the display and configured to output a first infrared ray to the outside; a first light-receiving element disposed under the display at a position corresponding to the at least one hole, and configured to receive a second infrared ray transmitted from the outside; a second light-receiving element disposed under the display at a position where light from the outside is shielded; and at least one processor configured to, based on that a first sensing value according to the second infrared ray, output from the first light-receiving element, satisfies a first specified condition, while the first infrared ray is output: based on that a second sensing value output from the second light-receiving element does not satisfy a second specified condition, identify that a proximate object exists, and based on that

Abstract: A scroll compressor includes a first oil supply passage communicating with a first compression chamber formed between an inner circumferential surface of a fixed wrap and an outer circumferential surface of an orbiting wrap, and a second oil supply passage separated from the first oil supply passage and communicating with a second compression chamber formed between an outer circumferential surface of the fixed wrap and an inner circumferential surface of the orbiting wrap, wherein the first oil supply passage includes an oil supply guide portion provided in a thrust surface of the fixed scroll in contact with the orbiting scroll to define a part of the first oil supply passage, whereby communication between the first and second compression chambers can be prevented, thereby suppressing leakage between the compression chambers, stabilizing behavior of the orbiting scroll, and facilitating formation of the orbiting scroll.

Abstract: A scroll compressor includes a motor portion fixed in an inner space of a casing, a compression portion fixed to the inner space of the casing at one side of the motor portion in an axial direction, a rotation shaft to transmit a driving force from the motor portion to the compression portion, and a flow path guide provided in a discharge space between the motor portion and the compression portion and provided with a guide outlet communicating with the discharge space and opened in a direction toward the rotation shaft. Therefore, most of refrigerant discharged to the discharge space through the flow path guide is moved toward an air gap to enhance an oil separation effect, and thus a normal operation point of the air conditioner can be accelerated.

Abstract: Disclosed is a callus lysate containing a callus metabolite without a loss of callus metabolite and its preparation method, a capsule containing a callus lysate prepared through encapsulation by coating the callus lysate with a natural polymer material and its preparation method, and composition for external skin application and a cosmetic composition that includes the callus lysate or the capsule containing the callus lysate as an active ingredient, wherein the callus lysate of the present invention contains a large amount of a callus metabolite without a loss of callus metabolite and thus allows penetration or absorption of callus metabolite directly into the skin, thereby providing effects of the callus metabolite to prevent and improve various skin diseases and symptoms.

Abstract: A robot cleaner for avoiding a stuck situation using artificial intelligence includes a sensing unit configured to detect the stuck situation of the robot cleaner, a driving unit to drive the robot cleaner, and a processor configured to determine a rotation angle of the robot cleaner when the stuck situation is detected through the sensing unit, control the driving unit such that the robot cleaner rotates by the determined rotation angle, and control the driving unit such that the robot cleaner reverses by a certain distance after rotating by the rotation angle.

Abstract: A robot cleaner according to an embodiment of the present invention comprises: a travelling part for moving a body; a memory for storing travel state information of the traveling part, which is recorded while a cleaning operation is performed on the basis of a first map; and a control part for discriminately detecting a first area and a second area divided from a plurality of cleaning areas corresponding to the first map, on the basis of the stored travel state information. Moreover, the control part may generate a second map by removing one of the first area and the second area from the first map, and then control the travelling part to perform a cleaning operation in a changed cleaning mode on the basis of the generated second map.

Abstract: Provided is a control method of a mobile robot, the method including an experience information generating step of obtaining current state information through sensing during traveling, and, based on a result of controlling an action according to action information selected by inputting the current state information to a predetermined action control algorithm for docking, generating one experience information that comprises the state information and the action information. The control method may further include an experience information collecting step of storing a plurality of experience information by repeatedly performing the experience information generating step, and a learning step of learning the action control algorithm based on the plurality of experience information.

Abstract: Disclosed is a computer program stored in a computer-readable storage medium including encoded commands according to an exemplary embodiment of the present disclosure. When the computer program is executed by one or more processors, the computer program allows the one or more processors to perform a method for managing undo information in a database management system (DBMS). The method may include: forming undo information corresponding to an update request by a first transaction in response to the update request by the first transaction in the database management system (DBMS); determining an undo memory chunk to be allocated to the undo information from an undo memory pool on a memory, the undo memory chunk having a variable size; and maintaining the undo information on a space of the memory by using the determined undo memory chunk.

Abstract: A method for enhancing illumination intensity of an image according to an embodiment of the present disclosure may include receiving an image, determining a filter application scheme by using a neural network model trained to enhance the illumination intensity of the image, and outputting an image having enhanced illumination intensity by applying, to the image, the determined filter application scheme. The neural network model trained using machine learning includes a first group of layers for extracting feature information of the image, a second group of layers for determining a type of filter based on the extracted feature information, and a third group of layers for determining the optimal parameter for the filter based on the extracted feature information. The neural network model may be provided through an external server in an IoT environment using a 5G network.

Abstract: The present invention relates to a mobile terminal capable of voice recognition and a control method thereof. A mobile terminal, according to the present invention, comprises: a user input unit for receiving an input of a search word from a user; a control unit for calculating at least one search result corresponding to a time lapse on the basis of history information related to the search word; and a display unit for outputting the calculated at least one search result corresponding to a time lapse.

Abstract: A scroll type compressor includes an orbiting scroll including an orbiting wrap and a fixed scroll including a fixed wrap, in which first and second oil channels are respectively configured to supply oil to inner and outer oil channels formed by the orbiting wrap and the fixed wrap. Thus, the scroll type compressor has an oil channel structure that allows oil feeding into to the scrolls.

Abstract: In order to solve the problem of the present invention, an artificial intelligence vacuum cleaner for performing autonomous traveling, according to one embodiment of the present invention, comprises: a main body; a driving unit for moving the main body within a cleaning area; a camera for photographing an area around the main body; and a control unit for controlling, on the basis of an image captured by means of the camera, the driving unit such that a predetermined traveling mode is performed, wherein the control unit performs a first recognition process for determining whether the image corresponds to any one of multiple types of obstacles, performs a second recognition process for re-determining whether the image corresponds to any one obstacle type in order to verify the result of the first recognition process, and controls the driving unit on the basis of the obstacle type determined through the first and second recognition processes such that the main body travels in a preset pattern.

Abstract: A robot cleaner using artificial intelligence may include a traveling unit configured to move a main body; a cleaning unit configured to perform a cleaning function; a sensing unit configured to sense a surrounding user; and a controller configured to recognize location of a user based on information sensed through the sensing unit, and control to follow the user to perform cleaning. A method of controlling the robot cleaner using artificial intelligence may include recognizing location of a user; and a follow-up cleaning step of following the user to clean a surrounding area of the user.

Abstract: A server and a controlling method therefor are provided. The server includes a communicator, a memory, and a processor configured to receive first log information related to a first material generated in a first facility among facilities, the first facility belonging to a first process for manufacturing a product through the communicator, generate an identifier (ID) regarding the first material, generate tracking information on the first material based on the first log information, assign the ID to the tracking information, receive pieces of second log information generated in a second facility among the facilities, the second facility belonging to a second process following the first process through the communicator, identify second log information corresponding to the first material among the pieces of second log information based on the first log information included in the tracking information, and update the tracking information based on the identified second log information.