Abstract: A floating type humidifier with an increased humidification amount according to an exemplary embodiment of the present invention includes: a floating body which floats on water accommodated in a water tub and has a hollow portion vertically and penetratively formed at a central portion of the floating body; an ultrasonic generator which is installed in the hollow portion and configured to atomize water, which is introduced at a lower portion, to create humidification particles by using ultrasonic vibration; a humidification particle guide unit which is installed on an upper portion of the floating body and guides the humidification particles so that the humidification particles move upward along a guide hole in the humidification particle guide unit; and an air pressurizing portion which is provided in the humidification particle guide unit and pressurizes air so that the humidification particles are moved upward by the pressurized air.

Abstract: The present invention relates to an air cleaner, including a body forming an exterior; a suction portion formed on the body to suck air; a discharge portion formed on the body and discharging the air sucked through the suction portion; and a fan module provided in the body to form a flow of air flowing from the suction portion to the discharge portion, wherein the fan module includes: a driving portion forming a rotation shaft and generating power; a fan receiving the power from the driving portion and rotating about the rotation shaft; and a shroud accommodating the fan and provided between the suction portion and the discharge portion to guide the air sucked through the suction portion to the discharge portion, and the shroud includes a guide portion guiding foreign substances introduced through the discharge portion in a direction opposite to the flow of air.

Abstract: An air circulator having a dual rotary vane according to an exemplary embodiment of the present invention includes: a casing assembly having a suction port through which air is introduced, and a discharge port through which the air is discharged; an intake fan assembly including an intake motor fixedly coupled in the casing assembly, and an intake fan configured to be rotatably driven by the intake motor; and an exhaust fan assembly including an exhaust motor fixedly coupled in the casing assembly, and an exhaust fan configured to be rotatably driven by the exhaust motor, in which a rotational speed of the exhaust fan is higher than a rotational speed of the intake fan.

Abstract: A sensor-integrated communication module that is insertedly coupled to one side of a home appliance may include a communication unit for transmitting/receiving a signal to/from an external device by using wireless communication, a sensor unit for collecting ambient information, and a control unit for controlling an operation of the home appliance in consideration of the ambient information.

Abstract: A non-contact communication module for a home appliance according to an embodiment may include: a first communicator that transmits and receives signals to and from a home appliance through local area wireless communication; a second communicator that transmits and receives signals to and from a server or a user terminal; and a controller that transmits signals received from the first communicator to the user terminal through the second communicator.

Abstract: An air purification device including an interchangeable lower body according to an exemplary embodiment of the present invention includes: an upper body opened at an upper portion thereof, selectively having therein an electronic circuit configured to operate the air purification device, and having, at the upper portion thereof, an air discharge unit configured to discharge purified air, the upper body being configured to be connected to one of interchangeable lower bodies having different capacities; and the lower body opened at an upper portion thereof and coupled to the upper body by being brought into contact with a lower portion of the upper body, the lower body having a vacant space into which a filter configured to purify air is inserted, selectively having therein an electronic circuit configured to operate the air purification device, and having an air intake unit provided on an outer surface thereof to draw in contaminated air.

Abstract: An intelligent humidification system according to the present invention in which a remote controller with a built-in sensor and a humidifier are linked, includes: a humidifier; a remote controller which is attached to/detached from a holder equipped in the humidifier and measures atmospheric environment information of a located space using a built-in sensor; and a humidification controller which is connected to the humidifier through a wire and is connected to the remote controller in a wireless manner to control the humidifier according to the atmospheric environment information measured by the remote controller, so that a humidity of a place where a user carrying the remote controller is located is measured and the humidifier is operated by taking into account the measured humidity value, thereby achieving user-oriented humidification.

Abstract: An air cleaner according to an exemplary embodiment of the present invention includes a water tank in which water is contained, a rotating shaft which is mounted in the water tank and rotates, and a rotating body which is coupled to the rotating shaft to rotate in a longitudinal direction of the rotating shaft as a rotational axis and formed with a plurality of rotating blades capable of collecting air, in which the rotating shaft is obliquely mounted to form a predetermined angle with a water surface formed by the water contained in the water tank.

Abstract: A method for providing a blockchain network capable of optimizing storage used by service nodes in the blockchain network is provided. The method includes steps of: (a) a specific service node among the service nodes, wherein the specific service node is configured to optimize its storage if one of optimization conditions is satisfied, generating blocks while synchronizing with other service nodes; and (b) the specific service node (b1) determining whether one of the optimization conditions is satisfied, by referring to one of (i) (i-1) a latest-block number of a latest block among the blocks and (i-2) a predetermined threshold number, and (ii) a predetermined threshold time and (b2) if one of the optimization conditions is satisfied, applying storage-optimizing operation to information on transactions in target blocks which are part of the blocks not optimized, wherein the target blocks are determined by referring to one of (i) and (ii).

Abstract: A method for synchronizations with delayed data serving as backup data stored in one or more delayed nodes in a blockchain network, to thereby restore one or more service nodes in the blockchain network while maintaining a reliability of the backup data is provided. The method includes steps of: (a) a specific delayed node among the delayed nodes performing synchronization with the services nodes while the specific delayed node maintains a specific delay according to a specific initial setting thereof; (b) the specific delayed node, when a triggering command is acquired from an administrating device, transmitting information on delayed blocks included therein to the service nodes in order to support restoration of the service nodes; and (c) the specific delayed node, after the service nodes are restored by using the information on the delayed blocks, performing the synchronization again with the service nodes.