Abstract: A virtual power plant system using a heat conversion device includes a plurality of distributed energy resources connected to a virtual power plant; a virtual power plant output adjustment device connected to the virtual power plant and including a heat conversion device that receives power generated from the plurality of distributed energy resources and converts the power into thermal energy, a virtual power plant management device configured to conduct a bidding by predicting an expected power generation amount of the plurality of distributed energy resources, analyze output variation and error of the virtual power plant due to an output variation of the plurality of distributed energy resources, and stabilize an output variation of the virtual power plant by controlling a power consumption amount of the virtual power plant output adjustment device based on the analysis result.

Abstract: A virtual power plant system using a renewable combined heat and power plant includes a plurality of distributed energy resources connected to a virtual power plant; a virtual power plant output adjustment device connected to the virtual power plant and including a renewable combined heat and power plant that produces electricity using a new and renewable energy source; and a virtual power plant management device configured to conduct a bidding by predicting an power generation amount of the plurality of distributed energy resources, analyze output variation and error of the virtual power plant based on the power generation amount of the plurality of distributed energy resources, and stabilize an output variation of the virtual power plant by controlling a power generation amount of the virtual power plant output adjustment device.

Abstract: The present invention relates to a load torque detection technology, and more particularly, to a device and method for load torque detection in a robot system. According to an embodiment of the present invention, it is possible to accurately detect the load torque without requiring a position sensor included in a load torque measurement actuator to have a multi-revolution function or additional power supply.

Abstract: A mobile robot platform system evolves autonomous driving ability of a mobile robot through reinforcement learning in various environments. The mobile robot platform system includes a remote control unit configured to perform remote control of the mobile robot according to its purpose of use; an autonomous driving unit configured to autonomously drive the mobile robot in an autonomous driving section based on a preset criterion; a data collection unit configured to collect data for driving of the mobile robot; a learning unit configured to train the mobile robot using reinforcement learning data including the collected data; and a determination unit configured to determine a remote control section and the autonomous driving section based on a level of the training when the mobile robot moves to a corresponding destination.

Abstract: An autonomous mobile robot is provided. The autonomous mobile robot includes an upper module including a cargo space provided therein, and a cover, a lower module positioned under the upper module and providing a driving force, a driving module provided in the lower module, and a control unit that controls an operation of the driving module, in which the driving module includes a plurality of pairs of wheels capable of asynchronously contacting a road surface or ground so as to overcome a step or a stair.

Abstract: An autonomous mobile robot is provided. The autonomous mobile robot includes an upper module including a cargo space provided therein, and a cover, a lower module positioned under the upper module and providing a driving force, and a driving module provided in the lower module, in which the driving module includes a plurality of pairs of wheels capable of asynchronously contacting a road surface or ground so as to overcome a step or a stair.

Abstract: A module and method for linking information of a plurality of driving units, and a module and method for linking driving units of a robot system in which a master controls a plurality of driving units included in a plurality of slave devices through communication are provided. The module and method for linking driving units of a robot system provide compatibility with an existing robot motion table that uses one driving unit for one device without requiring a separate conversion operation.

Abstract: A system and method for efficient communication bus arbitration in a communication protocol are provided. The system and method for efficient communication bus arbitration are a system and method for slave communication bus arbitration in multi-drop communication, and provide efficient and fast communication speed by improving the packet structure in a manner in which a slave controller sequentially responds to a query of a master controller.

Abstract: The present invention relates to a coolant heater. The purpose of the present invention, a coolant heater which effectively heats coolant of a vehicle by means of a heating unit, is to provide a coolant heater having improved sensitivity and responsiveness to over-heating and assured stability by utilizing a temperature fuse to prevent over-heating. Another purpose of the present invention is to provide a coolant heater having enhanced durability of the temperature fuse coupling part by improving the structure by which the temperature fuse is fixed.

Abstract: Disclosed is a composite polymer electrolyte membrane comprising: a support membrane; a metal ion-blocking layer stacked on the support membrane; a stabilization layer; and a protecting layer, wherein the support membrane includes a cation conductive polymer.

Abstract: An embodiment fuel cell includes a cell stack including a plurality of unit cells stacked in a first direction, a plate disposed at one of two end portions of the cell stack, the plate including a first terminal unit protruding in a second direction intersecting the first direction, a heating element including a second terminal unit engaged with the first terminal unit of the plate in the second direction, the heating element being disposed between the one of the two end portions of the cell stack and the plate, and an insulation part disposed at at least one of the first terminal unit or the second terminal unit, wherein one of the first terminal unit and the second terminal unit includes a pair of male heater terminals protruding in the second direction, and the other includes a pair of female heater terminals.

Abstract: A method for scanning an Access Point (AP) in a portable terminal includes determining whether a request to activate the portable terminal is detected; and upon detecting the request, immediately and additionally scanning an AP independently of a predetermined scan cycle.

Abstract: Provided are a semiconductor device and a method for fabricating the same. The semiconductor device includes an active fin protruding upwardly from a substrate and extending in a first direction and a gate structure extending in a second direction intersecting to cross the active fin, where a first width of a lower portion of the gate structure that contacts the active fin is greater than a second width of the lower portion of the gate structure that is spaced apart from the active fin.

Abstract: A wireless optical charging system according to the present invention includes a transmitter which transmits a laser beam as light with an energy increased by the resonance; and a receiving unit which receives light transmitted from the transmitter and converts an energy for some light among the received light into an electric energy to charge devices. Accordingly, the laser resonance power transfer technology is used to solve the limitation of the distance and harmfulness to the human body.

Abstract: A method and apparatus for operating an instant messaging server are disclosed. The method for operating an instant messaging server according to an example embodiment includes managing a message sent and received through a first chat room of a messenger application, managing a message sent and received through a second chat room of a 3rd party application receiving support a chat function through the instant messaging server, identifying a user account of an instant messaging service (IMS) linked with a user account of the 3rd party service participating in the second chat room, and providing, based on the identified user account of the IMS, the second chat room of the 3rd party application to the messenger application.

Abstract: The present disclosure relates to a hydrogen purification/storage apparatus and method using a liquid organic hydrogen carrier (LOHC).

Abstract: Provided are a semiconductor device and a method for fabricating the same. The semiconductor device includes an active fin protruding upwardly from a substrate and extending in a first direction and a gate structure extending in a second direction intersecting to cross the active fin, where a first width of a lower portion of the gate structure that contacts the active fin is greater than a second width of the lower portion of the gate structure that is spaced apart from the active fin.

Abstract: The present invention relates to a coolant heater. The purpose of the present invention, a coolant heater which effectively heats coolant of a vehicle by means of a heating unit, is to provide a coolant heater having improved sensitivity and responsiveness to over-heating and assured stability by utilizing a temperature fuse to prevent over-heating. Another purpose of the present invention is to provide a coolant heater having enhanced durability of the temperature fuse coupling part by improving the structure by which the temperature fuse is fixed.

Abstract: Nonvolatile memory devices, such as phase change memory (PCM) devices or other resistance based memory devices, are disclosed as well as methods of operating the same. Resistance states of the memory cells may be altered due to write disturbance resulting from write operations to neighboring word lines. Data reliability may be increased by performing check read operations of neighboring memory cells in response to a write operation. In some examples, a number of consecutive write operations performed on a memory cell array or a portion thereof is monitored. When the number of consecutive write operations reaches a predetermined number, which may be a randomly generated number in some examples, a corresponding check read operation may be performed. If the check read operation indicates certain sections of the memory have been subject to a write disturbance, data in such sections may be refreshed to provide adjust resistance states of corresponding memory cells.

Abstract: An induction heater for a vehicle according to the present invention heats a coolant of the vehicle using an induction heating method, and more particularly, is easy to mold and has a reduced heating density by applying a plate-shaped coil and plate-shaped heating elements.