Patents Assigned to LSI
  • DEVICE AND METHOD FOR ASSESSING DYNAMIC STABILITY
    Publication number: 20160301206
    Abstract: A dynamic stability assessment device is provided. The dynamic stability assessment device includes an energy management system (EMS); and a dynamic stability assessment system for dynamic stability assessment on a power system of the energy management system. The EMS includes a plurality of facility names with respect to a single facility, and processes to power system data based on any one of the plurality of facility names according to a state of the power system.
    Type: Application
    Filed: April 12, 2016
    Publication date: October 13, 2016
    Applicant: LSIS CO., LTD.
    Inventors: Hong Joo KIM, Ae Kyoung BAE, Young In KIM, Yoon Sung CHO
  • VEHICLE POWER MANAGEMENT DEVICE
    Publication number: 20160297309
    Abstract: A vehicle power management device includes a high-voltage energy storage unit for storing continuous power and power charged in driving of a vehicle, a DC-DC converter for allowing power stored in the high-voltage energy storage unit to be applied or intercepting the application of the power, and acquiring data on components in the vehicle, to which the power is applied, and a power source for applying, to a load, power charged through the DC-DC converter, and charging a discharged voltage from the high-voltage energy storage unit.
    Type: Application
    Filed: April 11, 2016
    Publication date: October 13, 2016
    Applicant: LSIS CO., LTD.
    Inventor: Young Min KIM
  • METHOD FOR DETECTING GROUND FAULT IN INVERTER
    Publication number: 20160299184
    Abstract: The present invention relates to a method for detecting a ground fault in an inverter. The method for detecting the ground fault in the inverter in a current detection using leg-shunt resistors includes detecting output currents of three phases of the inverter, determining whether or not a voltage utilization of the inverter is not less than a preset allowable voltage level, and determining an occurrence or non-occurrence of the ground fault on the inverter.
    Type: Application
    Filed: March 7, 2016
    Publication date: October 13, 2016
    Applicant: LSIS CO., LTD.
    Inventors: Jaemoon LEE, Chunsuk YANG
  • MONITORING SYSTEM FOR ENERGY STORAGE SYSTEM
    Publication number: 20160301231
    Abstract: A monitoring system for an energy storage system is provided. The monitoring system for an energy storage system includes a power conversion system controlling charging and discharging of a battery; a charging control unit receiving data from the power conversion system and controlling the power conversion system; and a system control unit receiving data from the charging control unit and transmitting control data to the charging control unit, wherein the system control unit and the charging control unit transmit and receive data according to a priority if data traffic is equal to or higher than a certain level, and when the data traffic is the equal to or higher than the certain level, the charging control unit transmits data to the system control unit only if control data is not transmitted from the system control unit.
    Type: Application
    Filed: December 9, 2015
    Publication date: October 13, 2016
    Applicant: LSIS CO., LTD.
    Inventor: Choong Kun CHO
  • CIRCUIT BREAKER HAVING SAFETY SWITCHING PART
    Publication number: 20160301205
    Abstract: A circuit breaker includes a circuit breaker main body unit having a main circuit unit forming a circuit line of each phase, a current transformer part having a coil disposed in the circuit line of each phase and a pair of terminals extending from both ends of the coil and selectively connected to an external power source unit, and a safety switching part configured to connect the pair of terminals such that the pair of terminals are not opened, when the power source unit and the pair of terminals are separated.
    Type: Application
    Filed: April 1, 2016
    Publication date: October 13, 2016
    Applicant: LSIS CO., LTD.
    Inventor: Sangchul LEE
  • MAGNETIC SWITCH
    Publication number: 20160300677
    Abstract: The present invention relates to a magnetic switch, and more particularly, to a magnetic switch provided with a permanent magnet disposed at an outside of an upper frame and an externally fitted permanent magnet holder to reduce a number of components and facilitate maintenance.
    Type: Application
    Filed: December 28, 2015
    Publication date: October 13, 2016
    Applicant: LSIS CO., LTD.
    Inventor: Jinhee PARK
  • POWER SYSTEM MONITORING AND CONTROL SYSTEM HAVING THREAD-DEPENDENT CALCULATION MONITORING FUNCTION
    Publication number: 20160291664
    Abstract: A power system monitoring and control system having a thread-dependent calculation monitoring function is provided. The power system monitoring and control system includes: a display unit displaying screen information; a calculation handling unit executing thread-dependent calculation based on a calculation expression defined in a calculation file, and performing calculation handling for generating calculation result information and thread-dependent calculation execution monitoring information to provide generated information as screen information on the display unit; and a data storage unit storing file information for power system monitoring and control, information on the calculation file, the calculation result information, and the thread-dependent calculation execution monitoring information.
    Type: Application
    Filed: April 2, 2015
    Publication date: October 6, 2016
    Applicant: LSIS CO., LTD.
    Inventors: Tae Seop KIM, Jong Ho PARK, Yong Ik LEE, Tae Ho KIM, Jin Hei MYUNG, Soon Jong BAHNG, Jong Kab KWAK
  • POWER MEASUREMENT SYSTEM AND LOAD POWER MONITORING SYSTEM USING THE SAME AND OPERATING METHOD THEREOF
    Publication number: 20160294322
    Abstract: A load power monitoring system includes: an external power supply source; a renewable energy source configured to generate power or store a power applied from the external power supply source, and discharge the generated or stored power; a distribution board configured to distribute a power applied from the external power supply source or the renewable energy source to an electronic device; a power measurement device configured to detect power amount data of at least one of the external power supply source and the renewable energy source; a second power measurement device configured to detect power amount data distributed to the electronic device; and a monitoring server configured to collect power amount data detected by each of the power measurement devices and monitor a power of a load on the basis of the collected power amount data.
    Type: Application
    Filed: December 8, 2015
    Publication date: October 6, 2016
    Applicant: LSIS CO., LTD.
    Inventors: HUN PARK, YOUNG GYU YU
  • Electromagnetic switching device
    Patent number: 9460877
    Abstract: An electromagnetic switching device is provided that includes a junction box having an accommodating space formed to be one side open by side plates and a bottom plate and a relay having fixed contacts and movable contacts within a casing and detachable to and from the accommodating space, where the junction box includes a pair of protrusions that protrude from the side plates to an opposite side to the accommodating space, the relay includes a lever hinge-coupled to the casing and engaged by the pair of protrusions and the lever is configured to press the relay toward the bottom plate when rotating in one direction and to press the relay away from the bottom plate when rotating in an opposite direction, thereby enabling the relay to be easily detachable from the junction box.
    Type: Grant
    Filed: December 12, 2014
    Date of Patent: October 4, 2016
    Assignee: LSIS CO., LTD.
    Inventors: Tae Woon Ahn, Yeon Soon Choi
  • APPARATUS FOR AUXILIARY CONTACT OF CIRCUIT BREAKER
    Publication number: 20160284500
    Abstract: An apparatus for auxiliary contact of a circuit breaker includes a frame, a fixed contactor fixed to the frame inside the frame, a movable contactor installed inside the frame to be contacted with or separated from the fixed contactor, and a contact control member installed inside the frame, the contact control member being formed in a straight line shape, the contact control member being pressurized upward as an overcurrent is applied to the circuit breaker to allow the movable contactor to be contacted with or separated from the fixed contactor.
    Type: Application
    Filed: January 15, 2016
    Publication date: September 29, 2016
    Applicant: LSIS CO., LTD.
    Inventor: Hyungeun CHO
  • DATA PROCESSING DEVICE AND METHOD FOR HIGH VOLTAGE DIRECT CURRENT TRANSMISSION SYSTEM
    Publication number: 20160285379
    Abstract: A data processing device for a high voltage direct current (HVDC) transmission system is provided. The data processing device includes a plurality of measuring interface systems (MIS) for measuring a voltage or current in an HVDC transmission system; a bus for transmitting data on the plurality of MISs; and an optical distribution module (ODM) transmitting the data transmitted through the bus to the HVDC transmission system, wherein the plurality of MISs increases counter values according to a data transmission completion signal of the ODM, and an MIS corresponding to the counter value among the plurality of MISs transmits data to the ODM through the bus.
    Type: Application
    Filed: March 18, 2016
    Publication date: September 29, 2016
    Applicant: LSIS CO., LTD.
    Inventors: Eung Soo KIM, Jong Bae KIM, Seung Hun LEE
  • AIRFIELD LIGHTS CONTROL AND MONITORING SYSTEM
    Publication number: 20160286634
    Abstract: Disclosed is an airfield lights control and monitoring system for supplying a constant current to a plurality of lighting devices. The airfield lights control and monitoring system includes a server configured to transmit a lighting device control command for controlling the plurality of lighting devices, a constant current regulator configured to supply a predetermined current to the plurality of lighting devices according to external control, and first and second central devices configured to receive the lighting device control command to control the constant current regulator according to the received lighting device control command. The first and second central devices transfer the lighting device control command there between.
    Type: Application
    Filed: December 18, 2015
    Publication date: September 29, 2016
    Applicant: LSIS CO., LTD.
    Inventors: Dongsun WON, Jaeshik YOON
  • Device and method for processing message
    Patent number: 9454369
    Abstract: Embodiments provide a device and method for processing messages according to a priority order and for reducing a message processing time when a response event occurs, in a PLC communication module.
    Type: Grant
    Filed: September 23, 2014
    Date of Patent: September 27, 2016
    Assignee: LSIS CO., LTD.
    Inventor: Hwa Soo Ryu
  • Parallel communication device and communication method thereof
    Patent number: 9454502
    Abstract: Provided are a parallel communication device and a communication method thereof. The parallel communication device includes: a first receiving terminal receiving communication data transmitted through a master device; a first transmitting terminal transmitting the communication data received through the first receiving terminal to a slave device; a switch managing a communication line disposed between the first transmitting terminal and a plurality of slave devise; and a control unit confirming a first slave device to which the communication data are to be transmitted by using destination information in the communication data, and transmitting the received communication data to the confirmed first slave device.
    Type: Grant
    Filed: June 7, 2012
    Date of Patent: September 27, 2016
    Assignee: LSIS CO., LTD.
    Inventor: Tae Bum Park
  • Cleaning device for contamination of contact of electromagnetic contactor
    Patent number: 9452455
    Abstract: The present invention relates to a device for cleaning contaminants on a contact portion of an electromagnetic contactor, and more particularly, a device for cleaning contaminants on a contact portion of an electromagnetic contactor in which a magnetic force the acting direction of which is changed in time is generated to the outside of the electromagnetic contactor for cleaning contaminants generated at a contact portion thereof with an arc extinguishing method, thereby effectively and broadly performing the cleaning of contaminants.
    Type: Grant
    Filed: January 27, 2014
    Date of Patent: September 27, 2016
    Assignee: LSIS CO., LTD.
    Inventors: Jung Sik An, Hyun Woo Joo
  • Method for controlling multilevel converter
    Patent number: 9455618
    Abstract: The present disclosure provides a method for controlling a multilevel converter, the method including, detecting modulation state values and current directions of sub-modules, and designating, by one sub-module, an average number of switching for each period of an output waveform, wherein the step of designating the average number of switching includes, grouping the sub-modules according to being in ON state or in OFF state, comparing the number of sub-modules in previous ON state and the number of sub-modules in OFF state to obtain a difference therebetween, and changing a state as much as the difference, comparing a sub-module of ON state in charged state and in discharged state with a sub-module of OFF state, and changing the compared states of sub-modules of ON state and OFF state.
    Type: Grant
    Filed: May 22, 2014
    Date of Patent: September 27, 2016
    Assignees: LSIS CO., LTD., Industry-Academic Cooperation Foundation, Yonsei University
    Inventors: Gum Tae Son, Kyeon Hur, Jung Wook Park, Hee Jin Lee, Tae Sik Nam, Yong Ho Chung, Seung Taek Baek, Wook Hwa Lee
  • Method and apparatus for testing cardiotoxicity and evaluating cardiomyocytes
    Patent number: 9447447
    Abstract: In the present invention, a cardiomyocyte cluster is disposed on a transparent substrate, and the quality of the cardiomyocytes is evaluated from the response of the cells to a forced pulsation stimulus applied to the cardiomyocytes. The cardiomyocyte cluster is disposed on the transparent substrate, and is exposed to the flow of a liquid containing an agent in a manner so that the agent acts on the cells, which configure a network. The extent of cardiac toxicity resulting from the agent is evaluated from measuring the fluctuations obtained from a comparison of adjacent cardiomyocytes of the network.
    Type: Grant
    Filed: September 30, 2011
    Date of Patent: September 20, 2016
    Assignees: National University Corporation Tokyo Medical and Dental University, LSI Medience Corporation
    Inventors: Kenji Yasuda, Tomoyuki Kaneko, Fumimasa Nomura
  • Apparatus and method for detecting output phase deficiency in inverter
    Patent number: 9448265
    Abstract: An apparatus and a method for detecting phase deficiency in an inverter is provided, the method including deciding whether a sector of the output current is a sector where current detection is possible based on switching operation status of the switching element in the inverter, maintaining a phase deficiency variable when deciding the current detection in the sector of the output current to be impossible, adding a count to a phase deficiency variable to accumulate when deciding the current detection in the sector of the output current to be possible and deciding the output current to be within a phase deficiency band, and determining as phase deficiency when the phase deficiency variable is greater than a prescribed detection level.
    Type: Grant
    Filed: November 12, 2014
    Date of Patent: September 20, 2016
    Assignee: LSIS CO., LTD.
    Inventors: Jae Moon Lee, Tae Suk Bae
  • Circuit breaker with input load increasing means
    Patent number: 9449776
    Abstract: A circuit breaker comprises a switching mechanism that including a linkage with a drive joint that is mounted to be rotatable around a rotation axis by a driving force, wherein, during the ON operation, an axis formed by the rotation axis and the point of action of the driving force makes an acute angle with the line of action of the driving force, so that the drive joint causes the tangential force of the driving force to act as input load, at least one hinge part of the linkage is configured in a way that the connecting pin is movably hinged to the long hole-shaped hinge hole, and at least one hinge part of the linkage causes the tangential force to increase by changes in the acute angle as the connecting pin moves from a first side of the long hole-shaped hinge hole to a second side.
    Type: Grant
    Filed: October 30, 2014
    Date of Patent: September 20, 2016
    Assignee: LSIS CO., LTD.
    Inventors: Seong Yeol Cho, Jae Kwan Seo
  • Solitary senior people care system
    Patent number: 9449486
    Abstract: A solitary senior people care system comprises: an electric device switch installed within a household where a senior resident resides; a household monitoring communication device configured to provide the on or off state information and identity information of the electric device switch together; an electric device switch history server computer that stores and provides solitary senior resident household electric device switch usage history information, electric device switch setting information, and electric device switching state information; and a care device configured to notify an emergency rescue center or a guardian contact number about occurrence of an emergency situation when an emergency situation occurs, the solitary senior resident household electric device switch usage history information, and the state value information indicating whether an emergency situation has occurred.
    Type: Grant
    Filed: April 22, 2014
    Date of Patent: September 20, 2016
    Assignee: LSIS CO., LTD.
    Inventor: Gwon Hwan Hong