Abstract: This application relates to a data signal processing method. In one aspect, the method includes receiving a data signal from at least one global navigation satellite system (GNSS) satellite and obtaining a pseudo-range of the at least one GNSS satellite by using the data signal. The method may also include obtaining a range-acceleration based on the pseudo-range. The method may further include applying, to the data signal, a variance obtained by assigning a weight according to a noise model to the range-acceleration.

Abstract: A mobile robot platooning system includes a plurality of mobile robots operated for transfer of objects in a factory, and a central server connected to the plurality of mobile robots through wireless communication, and configured to set a path of the plurality of mobile robots to control autonomous driving of the mobile robots, wherein the central server is configured to group a platoon of the mobile robots required for processing a work, dispose the platoon of the mobile robots into a predetermined platoon form, collect state information of the platoon of the mobile robots, and control the platoon of the mobile robots to move in a synchronized form based on the state information.

Abstract: In a system for monitoring a vibration-isolated foundation, the system includes: an air pressure monitoring system for monitoring air pressure supplied to air mounts of the vibration-isolated foundation, wherein the air pressure monitoring system includes: a plurality of air ports configured to receive air to be supplied to the air mounts; a plurality of pressure sensors, each of the pressure sensors being configured to measure the pressure of the air supplied to a corresponding one of the air ports and to output the measured pressure as a sensing signal; a control unit configured to receive the sensing signal from each of the pressure sensors and to output a control signal according to a measured value of each of the pressure sensors; and a notification unit configured to operate according to the control signal of the control unit.

Abstract: A preparation method of calcium peroxide-mediated in situ crosslinkable hydrogel as a sustained oxygen-generating matrix, includes: a) reacting a natural or a synthetic polymer with Traut's reagent (TR) in a solvent, and synthesizing a polymer derivative having thiol group in backbone of the polymer derivative; and b) mixing and reacting a solution of the polymer derivative having thiol group with calcium peroxide (CaO2), and thereby forming a hydrogel, wherein in the step b), disulfide bonds (—S—S) are induced between backbones of the polymer derivative having thiol group attached by decomposition of calcium peroxide (CaO2), and thereby in situ crosslinking is formed.

Abstract: Disclosed are a wireless battery management system and a method for protecting a battery pack using the same. The battery pack includes a plurality of battery modules and at least one relay. The wireless battery management system includes a plurality of slave controllers electrically coupled to the plurality of battery modules one-to-one, and a master controller wirelessly coupled to each slave controller so as to be able to communicate with each slave controller. Each slave controller measures an operational parameter of the battery module electrically coupled thereto. Each slave controller wirelessly transmits a fault signal to the master controller when the measured operational parameter is outside of a predetermined normal range. The master controller turns off the at least one relay when the fault signal is received.

Abstract: Provided is a mining bit and a method for manufacturing the same wherein a plurality of cutting tips are provided in such a manner as to be easily made with a high concentration of abrasive particles, rounded on a cutting surface to induce optimal abrasion, and have a shape of an arch having the same width and rounded on inner and outer surfaces thereof. The mining bit includes: the layers have a shape of an arch with flat surfaces in such a manner as to be laminated onto each other in a horizontal direction with respect to a cutting surface of each cutting tip, and a distance (D2) between the abrasive particles on the adjacent layers is less than a distance (D1) between the abrasive particles on each layer.

Abstract: A preparation method of calcium peroxide-mediated in situ crosslinkable hydrogel as a sustained oxygen-generating matrix, includes: a) reacting a natural or a synthetic polymer with Traut's reagent (TR) in a solvent, and synthesizing a polymer derivative having thiol group in backbone of the polymer derivative; and b) mixing and reacting a solution of the polymer derivative having thiol group with calcium peroxide (CaO2), and thereby forming a hydrogel, wherein in the step b), disulfide bonds (—S—S) are induced between backbones of the polymer derivative having thiol group attached by decomposition of calcium peroxide (CaO2), and thereby in situ crosslinking is formed.

Abstract: An automated guided vehicle control system includes an automated guided vehicle (AGV) transporting parts by moving along a guide line designed on a floor of a factory; and a server displaying a guide line map of the factory on a screen through an AGV path setting UI, setting a transport path of the AGV depending on selection of a node which is present in the guide line and AGV motion information considering a link direction between neighboring nodes included in the transport path and transmitting the set transport path and motion information to the AGV through a wireless relay.

Abstract: A mining bit includes: a shank; and cutting tips attached to the shank, each cutting tip having a plurality of layers and a plurality of abrasive particles, wherein the layers have a shape of an arch with flat surfaces in such a manner as to be laminated onto each other in a horizontal direction with respect to a cut surface of each cutting tip, and a distance (D2) between the abrasive particles on the adjacent layers is less than a distance (D1) between the abrasive particles on each layer.

Abstract: A constant velocity joint assembly integrated with a wheel hub device may include an internal race coupled to an end portion of a driveshaft, a plurality of joint balls held in the internal race, and a hub housing accommodating and coupling the internal race holding the joint balls therein, with a bearing coupled to an external circumferential surface thereof, the hub housing provided as an external race of a constant velocity joint and the wheel hub device.

Abstract: Disclosed are a multilayered cell sheet of cardiac stem cells (CSCs) and a method of manufacturing the same. In particular, the present disclosure provides a method of manufacturing a multilayered cell sheet according to a single step culture procedure by using, as a three-dimensional matrix, a biodegradable natural polymer hydrogel and embedding CSCs in the hydrogel. The multilayered cell sheet of the present disclosure does not require any special device for the manufacturing, is manageable with good physicomechanical property, increases a cell engraftment rate after transplantation based on sufficient accumulation of various growth and protective factors and extracellular matrix between cells, and is also self-assembled by the cell-mediated hydrogel compaction, making nutrients transfer easy. Therefore, the multilayered cell sheet of the CSCs is expected to be usefully applicable as a therapeutic agent for myocardium regeneration.

Abstract: A battery pack management device capable of reducing power consumption while transmitting and receiving data between a master BMS and a slave BMS by using a wireless communication method. The battery pack management device according to the present disclosure includes: a master BMS including an external communicator, an internal communicator, and a master controller and a slave BMS including a power supply, a state measurement sensor, a slave wireless communicator, and a slave controller.

Abstract: A blockchain generation system included in each of servers forming a blockchain network includes a blockchain condition setting device that sets a blockchain configuration condition statement based on an operator's input to a screen of a user interface. A data detector detects result data stored in a memory of a programmable logic controller according to an operation of a process equipment based on the blockchain configuration condition statement. A blockchain generator generates blockchain data based on the result data detected from the memory of the programmable logic controller and transmits the blockchain data to a plurality of client servers connected via the blockchain network. A storage device stores the blockchain data and store blockchain data received from the client servers.

Abstract: The present disclosure relates to a method for immobilizing heparin and a NO-generating catalyst and a cardiovascular device having a surface modified using the same, and more particularly, to a method of co-immobilizing a heparin-phenol derivative and copper nanoparticles as a NO-generating catalyst on the surface of a material by a polyphenol oxidase-mediated reaction, a material having a surface with heparin and a NO-generating catalyst co-immobilized thereon by using the method, and a cardiovascular device including the material. It has been confirmed that a surface having heparin and the NO-generating catalyst co-immobilized thereon by the method of the present disclosure has high in vivo stability, continuously generates NO, and also promotes the proliferation of endothelial cells while significantly inhibiting the adhesion and activation of platelets and smooth muscle cells. Thus, the method may be advantageously applied to cardiovascular devices for inhibiting thrombosis and restenosis.

Abstract: A battery pack management device capable of reducing power consumption while transmitting and receiving data between a master BMS and a slave BMS by using a wireless communication method. The battery pack management device according to the present disclosure includes: a master BMS including an external communicator, an internal communicator, and a master controller and a slave BMS including a power supply, a state measurement sensor, a slave wireless communicator, and a slave controller.

Abstract: Provided is a pressure control method for a high-pressure regulator to prevent internal leak, and the high-pressure shut-off valve so as to minimize an internal leak, due to high-pressure gas remaining in a high-pressure fuel line when a valve of a gas storage tank is shut off, caused by a pressure difference between a front end portion and a rear end portion of the high-pressure regulator introducing or discharging high-pressure gas. Accordingly, the convenience for connecting work is provided, the high safety is ensured, and the high-pressure regulator is used with the high reliability.

Abstract: The disclosure relates to a pre-5th-generation (5G) or 5G communication system to be provided for supporting higher data rates beyond 4th-generation (4G) communication system such as long term evolution (LTE). An operation method of a device for upconversion in a wireless communication system is provided. The method includes receiving a first local oscillator (LO) signal, generating a second LO signal, based on the first LO signal and cross-coupled latches, receiving an input signal, generating an upconverted frequency, based on the second LO signal and the input signal, generating an output signal obtained by processing a harmonic component included in the upconverted frequency, and transmitting the generated output signal.

Abstract: Discussed is a battery discharge prediction apparatus and an application that perform receiving a setting for a parking period and a parking area of a pre-registered vehicle based on a user's input, receiving environment information of the parking area during the parking period from an external server, receiving state information of a battery of the pre-registered vehicle from the vehicle, and predicting a discharge timing of the battery based on the environment information of the parking area and the state information of the battery during the parking period, the predicting being performed by a device executing an application that predicts the discharge timing of the battery.

Abstract: Proposed are a pressure control method for a high-pressure regulator to prevent internal leak, and a high-pressure shut-off valve so as to minimize an internal leak, due to high-pressure gas remaining in a high-pressure fuel line when a valve of a gas storage tank is shut off, caused by a pressure difference between a front end portion and a rear end portion of the high-pressure regulator introducing or discharging high-pressure gas. Accordingly, the convenience for connecting work is provided, the high safety is ensured, and the high-pressure regulator is used with the high reliability.