Abstract: An electric vehicle battery case manufacturing method including a first cycle performing operation of sequentially performing a unit assembly preparing step (S1), a first welding step (S2), a first machining step (S3), and a first inspection step (S4), wherein the step (S1) performs a process of preparing unit parts through aluminum extrusion and machining and then welding each sub-assembly, the step (S2) performs a process of assembling the sub-assemblies produced through the step (S1) and then performing metal inert gas (MIG) welding or friction stir welding (FSW), the step (S3) performs a process of performing machining or hole machining on a welding bead part and a distorted surface of a product assembled through the step (S2), and the step (S4) performs a process of conducting a leak test on the product corrected through the step (S3).

Abstract: In the present invention, in classifying modulation types of a plurality of modulation signals by using a classifier (an artificial neural network model based on machine learning), the classifier may classify the modulation types of the modulation signals by using pieces of I/Q data, sampled with one sampling frequency, as input data, and thus, may quickly classify the modulation signals.

Abstract: In the present invention, in classifying modulation types of a plurality of modulation signals by using a classifier (an artificial neural network model based on machine learning), the classifier may classify the modulation types of the modulation signals by using pieces of I/Q data, sampled with one sampling frequency, as input data, and thus, may quickly classify the modulation signals.

Abstract: Provided is a cleaner having improved cleaning efficiency. The cleaner includes a main body having a intake provided to suction an object to be cleaned and a suction device having a brush chamber that communicates with the intake and a brush accommodated in the brush chamber, wherein the brush includes a brush body rotatably coupled to the brush chamber, a blade protruding in a radial direction of the brush body, and prevention members formed to be inclined from a central portion of the brush body to opposite side ends of the brush body to prevent foreign substance introduced into the brush chamber from being wound around the blade.

Abstract: A directive direction finding apparatus may comprise: a directivity-enabled antenna array in which a constituent antenna or antenna subarray has directivity in the same direction; an RF/IF receiver connected to the directivity-enabled antenna array; a digital receiver connected to the RF/IF receiver; a direction finder connected to the digital receiver; a directivity control unit to control an operation of the directivity-enabled antenna array; and a transport/control interface connected to the direction finder and to manage control and operation of the directivity-enabled antenna array, the RF/IF receiver, the digital receiver, the direction finder and the directive control unit.

Abstract: Disclosed is a robot cleaner which adjusts a suction area of air suctioned into a suction port through a shutter and a shutter driving device configured to operate the shutter, so that a flow rate of air is adjusted, thus more effectively suctioning dust in the air by using a fan motor having a fixed capacity.

Abstract: A robot cleaner motor assembly including: a fan motor and a fan motor casing including an exhaust passage for guiding, to an exhaust port, air discharged from the fan motor, wherein the exhaust passage includes: a first exhaust passage guiding the air such that the air, discharged from a discharge port of the fan motor, moves to an upper or lower side of the fan motor; a second exhaust passage guiding, to a front end of the fan motor, the air discharged from the first exhaust passage; a third exhaust passage guiding the air such that the air, discharged from the second exhaust passage, moves to the lower or upper side of the fan motor along left and right sides of the fan motor; and a fourth exhaust passage guiding, to an exhaust port, the air having moved along the left and right sides of the third exhaust passage.

Abstract: A cushioning packaging material for packaging one or more electronic products and the like is disclosed. The cushioning packaging material includes a cushioning portion provided with a plurality of air pockets, an air distribution portion provided with a distribution passage through which air is distributed into the plurality of air pockets, and an air inlet provided at one side of the air distribution portion. The air inlet is closed after completion of air injection. Thus, air leakage through the air inlet is prevented and cushioning force reduction caused by air leakage is also prevented.

Abstract: A robot cleaner capable of extending the service life of a filter by including a cyclone unit is provided. The robot cleaner includes a main body including wheels configured to rotate about a rotation axis, a brush device provided in the main body to draw in air containing dust, a first chamber, through which the air drawn in through the brush device is introduced, configured to change a traveling direction of the introduced air, and a second chamber connected to the first chamber and including a dust separator separating dust contained in air, and arranged side by side with the first chamber in a direction in which the rotation axis extends.

Abstract: Disclosed herein is a cleaning robot capable of allowing a driving apparatus to move along a cleaning apparatus when the cleaning apparatus is separated from the driving apparatus, and a controlling method thereof. In addition, a cleaning robot having a driving apparatus capable of storing a position from which a cleaning apparatus is separated when the cleaning apparatus is separated from the driving apparatus, and capable of moving to the stored position when the cleaning apparatus is mounted to the driving apparatus, and a controlling method thereof. The cleaning robot includes a driving apparatus provided with a mounting groove configured to allow a cleaning apparatus to be removably mounted, and the cleaning apparatus removably mounted to the mounting groove.

Abstract: A sensor module and a robot cleaner including the sensor module may provide accurate sensing of an obstacle and prevent an erroneous sensing of an obstacle. The robot cleaner may include a body including a cleaning unit to remove foreign substances from a surface of a floor, a cover to cover an upper portion of the body, a sensor module including an obstacle sensor mounted to sense an obstacle, and a sensor window provided at one side of the sensor module. The sensor module may include a light emitting device to emit light through the sensor window, a light receiving reflector on which light reflected from the obstacle is incident, and a light shielding portion interposed between the light emitting device and the light receiving reflector to block the light emitted from the light emitting device from being incident upon the light receiving reflector.

Abstract: Disclosed herein is a cleaning robot capable of allowing a driving apparatus to move along a cleaning apparatus when the cleaning apparatus is separated from the driving apparatus, and a controlling method thereof. In addition, a cleaning robot having a driving apparatus capable of storing a position from which a cleaning apparatus is separated when the cleaning apparatus is separated from the driving apparatus, and capable of moving to the stored position when the cleaning apparatus is mounted to the driving apparatus, and a controlling method thereof. The cleaning robot includes a driving apparatus provided with a mounting groove configured to allow a cleaning apparatus to be removably mounted, and the cleaning apparatus removably mounted to the mounting groove.

Abstract: A robot cleaner includes a body to travel on a floor; an obstacle sensing unit to sense an obstacle approaching the body; an auxiliary cleaning unit pivotably mounted to a bottom of the body, to be extendable and retractable; and a control unit to control extension or retraction of the auxiliary cleaning unit based on a pivot angle formed by the auxiliary cleaning unit with respect to a travel direction of the body when the obstacle is sensed.

Abstract: The present disclosure includes a main body, a cleaning tool assembly connected to the main body to be movable in at least one axial direction, a handle part connected to the main body and configured to receive an applied force of a user, a detection part provided in the handle part and configured to detect a magnitude and a direction of the force applied to the handle part, and a control part configured to control the movement direction of the cleaning tool assembly based on the detected direction of the force and to control the movement distance of the cleaning tool assembly based on the detected magnitude of the force. In this way, the steering performance may be improved by reducing a horizontal load felt by a user when the user holds and moves the handle of the cleaner, fatigue felt when performing the cleaning operation may be removed by removing a vertical load applied by the handle, and convenience may be improved.

Abstract: Provided is a cleaner having improved cleaning efficiency. The cleaner includes a main body having a intake provided to suction an object to be cleaned and a suction device having a brush chamber that communicates with the intake and a brush accommodated in the brush chamber, wherein the brush includes a brush body rotatably coupled to the brush chamber, a blade protruding in a radial direction of the brush body, and prevention members formed to be inclined from a central portion of the brush body to opposite side ends of the brush body to prevent foreign substance introduced into the brush chamber from being wound around the blade.

Abstract: Provided is a wireless power reception apparatus which receives a power from a wireless power transmission apparatus. A wireless power reception apparatus which receives a power from a wireless power transmission apparatus, the wireless power reception apparatus comprising a duty controller configured to control a duty cycle; a power converter configured to convert an effective load resistance according to the duty cycle; a reception resonator configured to receive a power from a transmission coil of the wireless power transmission apparatus, wherein the duty cycle and a current of the transmission coil is adjusted based on a load resistance of the wireless power reception apparatus.

Abstract: Provided is a cleaning robot including a main body; a driving unit configured to move the main body; a communication unit configured to establish wireless communication with a user terminal to which a manipulation command is input; and a controller configured to transmit a position detecting signal to the user terminal, and detect a position of the user terminal based on a time difference between the position detecting signal and a response signal transmitted from the user terminal.

Abstract: Provided is a wireless power transmission device to reduce an electromagnetic wave except for a signal to be transmitted during wireless power transmission, the wireless power transmission device including a transmitter configured to generate a magnetic field by inputting a high-frequency power signal generated by a transmission circuit into a first coil, a receiver configured to generate an induced current by allowing the generated magnetic field to pass through a second coil, and a reducer configured to reduce a harmonic component of the high-frequency power signal using a third coil inserted on a path between the transmitter and the receiver.

Abstract: A robot cleaner capable of extending the service life of a filter by including a cyclone unit is provided. The robot cleaner includes a main body including wheels configured to rotate about a rotation axis, a brush device provided in the main body to draw in air containing dust, a first chamber, through which the air drawn in through the brush device is introduced, configured to change a traveling direction of the introduced air, and a second chamber connected to the first chamber and including a dust separator separating dust contained in air, and arranged side by side with the first chamber in a direction in which the rotation axis extends.

Abstract: Disclosed is a magnetic field shielding apparatus including an energy transmitter configured to generate a magnetic field, an energy receiver configured to receive the magnetic field generated by the energy transmitter, and a magnetic shield configured to shield a leaked magnetic field that is not received by the energy receiver, the magnetic shield including at least one closed region through which the leaked magnetic field passes, and at least one open region including a protrusion through which the leaked magnetic field moves to an inside of the magnetic field shielding apparatus after absorbed into the closed region.