Abstract: The present invention relates to a controller of a camera module capable of simplifying a measurement system and reducing cost by having a frequency response measurement function. A controller of camera module according to an embodiment, in a driving mode, preprocesses an actuator position value signal sensed by a Hall sensor to output to a measurement equipment, a target position value, arithmetic processes a target position value, an actuator position value signal and a disturbance signal supplied from the measurement equipment to output an error value signal to the measurement equipment, and generates an actuator driving signal that compensates for the error value signal to drive an actuator.

Abstract: A method for fabricating a semiconductor device includes forming a stack body including a plurality of recess target layers over a lower structure; forming sacrificial isolation openings in the stack body; forming sacrificial isolation layers in the sacrificial isolation openings; forming sacrificial vertical openings having bottom surfaces disposed at a lower level than bottom surfaces of the sacrificial isolation openings in the stack body between the sacrificial isolation layers; forming preliminary horizontal layers by recessing the recess target layers through the sacrificial vertical openings; forming sacrificial pillar structures that fill the sacrificial vertical openings; forming cell isolation openings by removing the sacrificial isolation layers; forming horizontal layers by trimming the preliminary horizontal layers through the cell isolation openings; and forming cell isolation layers that fill the cell isolation openings.

Abstract: Disclosed is an energy storage system having an arc monitoring function. The system includes: an outer casing storing an energy storage unit and a PCS therein; a sound sensor installed outside the outer casing to detect sound generated from an inside of the outer casing; a temperature and humidity sensor installed outside the outer casing to detect humidity and temperature of the outer casing; and an arc detection device analyzing a frequency of a sound generated in the energy storage unit and the PCS based on correlation between temperature and humidity to detect an arc signal included in the sound and monitoring an arc based on the detected arc signal.

Abstract: Disclosed is an energy storage system having an arc monitoring function. The system includes: an outer casing storing an energy storage unit and a PCS therein; a sound sensor installed outside the outer casing to detect sound generated from an inside of the outer casing; a temperature and humidity sensor installed outside the outer casing to detect humidity and temperature of the outer casing; and an arc detection device analyzing a frequency of a sound generated in the energy storage unit and the PCS based on correlation between temperature and humidity to detect an arc signal included in the sound and monitoring an arc based on the detected arc signal.

Abstract: Floating structures for a floating photovoltaic system fixed to fixing blocks or fixing means fixed to the bottom of water, each floating structure having one or a plurality of solar modules disposed thereon, the floating structures comprising: a plurality of ropes or a plurality of connection members having fixing hooks for connecting the floating structures with each other so as to restrain the movements of the floating structures; and connecting and fixing parts disposed below the surface of water under the floating structures in such a manner as to be connected to the ropes or the connection members having the fixing hooks, whereby the ropes or the connection members having the fixing hooks are located below the surface of water to restrain the movements of the floating structures.

Abstract: Floating structures for a floating photovoltaic system fixed to fixing blocks or fixing means fixed to the bottom of water, each floating structure having one or a plurality of solar modules disposed thereon, the floating structures comprising: a plurality of ropes or a plurality of connection members having fixing hooks for connecting the floating structures with each other so as to restrain the movements of the floating structures; and connecting and fixing parts disposed below the surface of water under the floating structures in such a manner as to be connected to the ropes or the connection members having the fixing hooks, whereby the ropes or the connection members having the fixing hooks are located below the surface of water to restrain the movements of the floating structures.

Abstract: A photovoltaic power-generating apparatus comprises: a solar cell module for collecting a solar light and converting the collected solar light into an electrical energy; a frame comprising an upper frame in which the solar cell module is installed, a lower frame spaced apart from the upper frame in the downward direction, and a support frame part which interconnects the upper frame and the lower frame and has a plurality of support frames spaced apart from each other, wherein the frame enables the solar cell module to be outwardly exposed from a surface of water; a fluid delivery unit which moves the fluid from an interior of one of the support frames to an interior of another support frame in such a manner that a center of gravity of the frame changes on the water surface and a posture of the frame changes; and a control unit which caluculate the target posture of the frame for the given sun location, and controls the fluid delivery unit in accordance with a data obtained from the calculation, in such a mann