Abstract: This disclosure relates to a hierarchical power control system linked to a cloud server comprising a first microgrid cell including a first ESS equipped with a UPS structure and a first load with a power state managed by the first ESS; a second microgrid cell including a second load and a second ESS that manages a power state of the second load; a third microgrid cell including a third load; an emergency cell including an additional ESS equipped with a UPS structure and an additional emergency generator, and selectively connected to the second microgrid cell; a middleware server which communicates with the first to third microgrid cells and the emergency cell; and an integrated control system for receiving power supply state information of the first to third microgrid cells, and establishing an integrated operation schedule based on the received power supply state information of the first to third microgrid cells.

Abstract: Provided are a hollow drive shaft using an upsetting method and a method of manufacturing the same, in which hot forging and upsetting processes are applied to both ends of a workpiece so that an outer diameter at both ends of the workpiece is greater than an outer diameter of a middle part of the workpiece, thereby reducing a weight of the drive shaft and enabling the drive shaft to transmit higher driving power. According to the present invention, the upsetting process is applied during the hot forging process to manufacture the hollow drive shaft, portions to be substantially processed are limited to portions at both ends of the workpiece, and the number of upsetting processes is limited to a minimum number (2 or the like), such that initial investment costs and manufacturing costs are low because the number of processes is small.

Abstract: A camera module according to an embodiment of the present invention comprises: a light emitting unit for outputting an optical signal to an object; and a light receiving unit for receiving a reflected light obtained after the optical signal is reflected by the object, wherein the light receiving unit comprises: a sensor for receiving the reflected light; a filter for transmitting the reflected light in a specific wavelength band; a driving unit for tilting the filter; and a driving circuit for driving the driving unit, and the filter is sequentially tilted from a reference state, in which the filter is not tilted, to a first to a third tilted state in which the filter is tilted in different directions, so as to allow the sensor to receive the reflected light.

Abstract: The present disclosure relates to a gas and earthquake detector, a gas and earthquake remote monitoring system using the same and a method thereof, and more particularly, to a gas and earthquake detector, a gas and earthquake remote monitoring system using the same and a method thereof, which detect a plurality of gases and earthquakes, detect and autonomously warn gas leakage of a plurality of detection target devices sensitive to the gas and the earthquake, and the earthquake around the detection target device, and easily register the gas leakage and the earthquake in a remote management means through a user mobile terminal of a user to monitor the gas leakage of the detection target device and the earthquake at a detection target device location through the remote management means.

Abstract: The present disclosure relates to a power management device and a display device comprising the same, and more particularly, to a power management device and a display device comprising the same, capable of reducing the power consumption of a display device by disabling a gamma reference voltage generation circuit when the display device is driven at a low scan rate.

Abstract: The present invention relates to a novel compound, and a composition for preventing or treating of respiratory disease comprising the novel compound, E- or Z-isomer thereof, optical isomer thereof, a mixture of two isomers thereof, precursor thereof, pharmaceutically acceptable salt thereof or solvate thereof as an active ingredient.

Abstract: The present invention relates to an apparatus and method for detecting an earthquake using an accelerometer. More particularly, the present invention relates to an apparatus and method for detecting an earthquake using an accelerometer, the apparatus and method being capable of improving reliability of acceleration data obtained from the accelerometer and reliably determining whether an earthquake has occurred on the basis of a change between current acceleration data and previous acceleration data.

Abstract: An electronic device according to an embodiment of the present invention comprises a front plate, a back plate facing a direction opposite to the front plate, a side member surrounding a space between the front plate and the back plate, constructed integrally with respect to the back plate, or bonded to the back plate, wherein the side member includes an outer structure constructed of a first metallic material and including at least one first surface constructing an outer surface of the side member and at least one second surface facing the space, an inner structure constructed of a second metallic material different from the first metallic material and including at least one third surface at least partially in contact with the second surface and at least one fourth surface facing the space, a touch screen display exposed through the front plate, an internal structure disposed to the space so as to be adjacent to the side member, constructed of a first polymer material, and including at least one fifth surfac

Abstract: Provided are a display driving device capable of accurately detecting characteristics of pixels of a display panel regardless of an offset of an amplifier, and a display device including the same. The display device includes a display panel including pixels and a display driving device including a sense circuit configured to detect pixel signals from the pixels. The sense circuit includes sense amplifiers configured to provide the first reference voltage to the pixels so that the pixels are programmed using a first reference voltage in a programming mode.

Abstract: A driver integrated circuit (IC) according to one embodiment of the present disclosure includes a first IC, a second IC that is combined with the first IC, a first circuit configured to receive first image data, and generate second image data by correcting the first image data, a second circuit configured to sample the second image data, and a third circuit configured to convert the sampled second image data into a source signal, wherein the first circuit is mounted on the first IC, the second circuit is mounted on one of the first IC and the second IC, and the third circuit is mounted on the second IC.

Abstract: The present invention relates to an energy storage system. An energy storage system, according to an embodiment of the present invention, relates to an energy storage system for managing power of a system and a direct current (DC) distribution network linked with the system, the energy storage system comprising: a first converter connected between the system and the DC distribution network so as to control a voltage of the DC distribution network; a second converter connected to the DC distribution network; a load connected to the second converter, and controlling the voltage by means of the second converter; a battery connected to the DC distribution network; and a third converter connected between the battery and the load, and controlling discharge of the battery.

Abstract: Provided is a method for monitoring a field based on augmented reality using a digital twin performed in a processor of a computing device of a manager located remotely from a physical space of a field, including: outputting a field twin model of a three-dimensional virtual space matched to the physical space of the field; acquiring location information of a field user for the physical space based on positioning sensor data received from a field sensor system arranged in the field; and displaying a first virtual content representing a location of the field user on the field twin model by matching location information of the field user for the physical space to the three-dimensional virtual space.

Abstract: Provided are a hollow drive shaft using an upsetting method and a method of manufacturing the same, in which hot forging and upsetting processes are applied to both ends of a workpiece so that an outer diameter at both ends of the workpiece is greater than an outer diameter of a middle part of the workpiece, thereby reducing a weight of the drive shaft and enabling the drive shaft to transmit higher driving power. According to the present invention, the upsetting process is applied during the hot forging process to manufacture the hollow drive shaft, portions to be substantially processed are limited to portions at both ends of the workpiece, and the number of upsetting processes is limited to a minimum number (2 or the like), such that initial investment costs and manufacturing costs are low because the number of processes is small.

Abstract: A system and method for determining an error in a vehicle catalytic converter prevent an incorrect determination and improve reliability of the determination. The method includes determining whether the error occurs in the catalytic converter in consideration of both fuel injection state and fuel injection cut-off state.

Abstract: The disclosure relates to a microcircuit forming method. The microcircuit forming method according to the disclosure comprises: a seed-layer forming step for forming a high-reflectivity seed layer on a substrate material by using a conductive material; a pattern-layer forming step for forming a pattern layer on the seed layer, the pattern layer having a pattern hole arranged thereon to allow the seed layer to be selectively exposed therethrough; a plating step for filling the pattern hole with a conductive material; a pattern-layer removing step for removing the pattern layer; and a seed-layer patterning step for removing a part of the seed layer which does not overlap the conductive material in the plating step, wherein the high-reflectivity seed layer has a specular reflection property.

Abstract: Disclosed herein is a slit-firing speaker apparatus capable of full frequency band reproduction. The speaker apparatus includes a speaker unit configured to generate sound, an enclosure, in which the speaker unit is installed, configured to block rearward sound to prevent the rearward sound of the speaker unit from being mixed with forward sound of the speaker unit, and a reflection plate configured to cover the speaker unit and coupled to the enclosure to form an acoustic path through which the generated sound travels. The acoustic path includes a radiation part formed at one end of the acoustic path and radiating the generated sound, and an opening part formed at the other end of the acoustic path.

Abstract: An electronic device according to an embodiment of the present invention comprises a front plate, a back plate facing a direction opposite to the front plate, a side member surrounding a space between the front plate and the back plate, constructed integrally with respect to the back plate, or bonded to the back plate, wherein the side member includes an outer structure constructed of a first metallic material and including at least one first surface constructing an outer surface of the side member and at least one second surface facing the space, an inner structure constructed of a second metallic material different from the first metallic material and including at least one third surface at least partially in contact with the second surface and at least one fourth surface facing the space, a touch screen display exposed through the front plate, an internal structure disposed to the space so as to be adjacent to the side member, constructed of a first polymer material, and including at least one fifth surfac

Abstract: Provided is a method for monitoring a field based on augmented reality using a digital twin performed in a processor of a computing device of a manager located remotely from a physical space of a field, including: outputting a field twin model of a three-dimensional virtual space matched to the physical space of the field; acquiring location information of a field user for the physical space based on positioning sensor data received from a field sensor system arranged in the field; and displaying a first virtual content representing a location of the field user on the field twin model by matching location information of the field user for the physical space to the three-dimensional virtual space.

Abstract: Disclosed are a source driver for sensing the degree of deterioration in pixels in some regions of a display panel and compensating for the deterioration in the display panel based on the sensed degree, by considering a characteristic in which pixels included in each display panel similarly deteriorate, and a display device including the same. The display device may include a display panel including pixels, a sensing circuit configured to provide sensing data by sensing the degree of deterioration in pixels in at least one first region of the display panel, and a compensation circuit configured to calculate an amount of compensation of each of the pixels in the first region using the sensing data and compensate for the deterioration in the pixels in the first region and pixels in a second region whose degree of deterioration is not sensed, based on the amount of compensation.

Abstract: Provided are a display driving device capable of accurately detecting characteristics of pixels of a display panel regardless of an offset of an amplifier, and a display device including the same. The display device includes a display panel including pixels and a display driving device including a sense circuit configured to detect pixel signals from the pixels. The sense circuit includes sense amplifiers configured to provide the first reference voltage to the pixels so that the pixels are programmed using a first reference voltage in a programming mode.