Abstract: A storage device may execute an operation of migrating valid data stored in one or more source data sections of a plurality of data sections to one or more destination data sections of the plurality of data sections in response to a request from an external device. When the valid data is migrated from the source data sections to the destination data sections, the storage device may execute an operation of writing meta data for the migrated valid data.

Abstract: A hybrid power generation system according to an embodiment of the present invention includes: a blade provided on a vertical shaft to reduce noise and vibration during rotation; a wind collecting duct increasing speed of wind and rotating the blade at a high speed to improve efficiency of wind energy; a wind collecting room provided in the blade to increase a rotational force and efficiency of wind energy; a photovoltaic module concentration device driving a wind inducing rotation motor provided in the wind collecting duct to rotate a wind inducing rotation blade with solar energy to increase wind and forcibly discharge the wind into a blade wind collecting room of a turbine module to increase an amount of power generation even when wind does not blow, and technologies based on Internet of Things (IoT) and Artificial Intelligence (AI), such as a camera, a fire detection sensor, a drone, and the like that can reduce a risk of breakdown of the system and operate efficiently.

Abstract: An electric vehicle charging system according to an aspect of the present invention may comprise a transformer, an alternating current/direct current (AC/DC) converting system, a requested power operation unit, and an electric wire network in a parking lot, and may convert AC power to DC power so as to provide charging power to an electric vehicle, with less loss of power compared to that of the AC power, via the electric wire network in the parking lot. In addition, it is possible to install one or more of the transformer, the AC/DC converting system, and the requested power operation unit in a space, which is separated from a charging adapter (5015) of a parking area, and to provide a parking space having a larger number of charging adapters (5015) than the number of DC/DC converters.

Abstract: A storage device may execute an operation of migrating valid data stored in one or more source data sections of a plurality of data sections to one or more destination data sections of the plurality of data sections in response to a request from an external device. When the valid data is migrated from the source data sections to the destination data sections, the storage device may execute an operation of writing meta data for the migrated valid data.

Abstract: In an embodiment of the disclosed technology, since a host device manages data stored in a storage device on the basis of a zone corresponding to a storage block of the storage device, the load of the storage device may be reduced, and the operation efficiency of the storage device may be increased by the control of the host device. Therefore, it is possible to improve the performance of a computing system including the host device and the storage device.

Abstract: A system for charging an electric vehicle according to the present invention may comprise: a control unit for managing overall systems; an AC/DC converting system for primarily converting power input from a transformer into direct-current power; a new renewable generator for generating new renewable energy such as sunlight; an ESS for storing the generated energy; and a direct-current power delivery system for receiving the direct-current power, determining the stabilization and charging speed of a power source, and supplying charging power to the electric vehicle.

Abstract: An electric vehicle charging system according to one aspect of the present invention operates a multi-connection switch connected to three or more electric wires of an electrical grid, so as to connect some electric wires from among the three or more electric wires, and thus can selectively form connection paths. The multi-connection switch comprises: multiple directional contacts that enable, through longitudinal conductors, the incoming and outgoing of electricity and are connected from the outside; internal wirings formed as longitudinal conductors that mutually connect the contacts; one or more switches provided in the corresponding internal wirings to perform the role of connecting or disconnecting any one part of the internal wirings; and a control unit capable of turning the switches on or off.

Abstract: A hybrid power generation system according to an embodiment of the present invention includes: a blade provided on a vertical shaft to reduce noise and vibration during rotation; a wind collecting duct increasing speed of wind and rotating the blade at a high speed to improve efficiency of wind energy; a wind collecting room provided in the blade to increase a rotational force and efficiency of wind energy; a photovoltaic module concentration device driving a wind inducing rotation motor provided in the wind collecting duct to rotate a wind inducing rotation blade with solar energy to increase wind and forcibly discharge the wind into a blade wind collecting room of a turbine module to increase an amount of power generation even when wind does not blow, and technologies based on Internet of Things (IoT) and Artificial Intelligence (AI), such as a camera, a fire detection sensor, a drone, and the like that can reduce a risk of breakdown of the system and operate efficiently.