Patents Assigned to LSI
  • Programmable logic controller system
    Patent number: 10324440
    Abstract: In some embodiments, a PLC system including a first CPU comprising a first media access control (MAC) communications layer and configured to generate data necessary for operation of the CPU, perform control operation based on the generated data, and transmit the generated data to a second CPU via the first MAC communications layer is included. The PLC system may further include the second CPU comprising a second MAC communications layer receiving the generated data via the first MAC communications layer and configured to perform service operation based on the received data. The first CPU may be connected to a memory in which data to be transmitted to the second CPU is stored at a predetermined location, and the second CPU may receive the data stored in the predetermined location of the memory by a direct memory access (DMA) scheme.
    Type: Grant
    Filed: June 21, 2016
    Date of Patent: June 18, 2019
    Assignee: LSIS CO., LTD.
    Inventors: Geon Yoon, Ki-Myung Kim
  • Earthing structure of earthing truck
    Patent number: 10320095
    Abstract: Provided is an earthing structure of an earthing truck that includes a frame with a terminal connection part and a moving part configured to support the frame and is configured to ground a bus or a cable while the moving part moves. The structure including: an earthing plate provided on a lower surface of the moving part; and an earthing member configured to provide a contact pressure to the earthing plate as it contacts the earthing plate when the moving part moves.
    Type: Grant
    Filed: January 5, 2018
    Date of Patent: June 11, 2019
    Assignee: LSIS CO., LTD.
    Inventors: Kwanseung An, Jongdoo Kim
  • Disconnection detection apparatus of sinusoidal wave signal
    Patent number: 10312836
    Abstract: Disclosed is a disconnection detection apparatus of a sinusoidal wave signal. The disconnection detection apparatus of the present disclosure converts a first sinusoidal wave and a second sinusoidal wave into absolute values, respectively, and determines that disconnection occurs when a value of the first sinusoidal wave is less than a first comparison value that is greater than a minimum value and a value of the second sinusoidal wave is less than a second comparison value that is less than a maximum value.
    Type: Grant
    Filed: December 20, 2016
    Date of Patent: June 4, 2019
    Assignee: LSIS CO., LTD.
    Inventor: Min-Hun Chi
  • System for controlling speed of railway vehicles by considering braking characteristic
    Patent number: 10308264
    Abstract: The present disclosure relates to a speed control system of a railway vehicle in consideration of a braking characteristic, and more particularly, to a speed control system of a railway vehicle in consideration of a braking characteristic, which calculates in real time a time-to-target-speed-crossing (TTTSC) that is a time required for a speed of a train to exceed a speed of an automatic train operation (ATO) profile through a future speed estimation of the train, and controls the speed of the train to be interlocked with the TTTSC.
    Type: Grant
    Filed: December 1, 2016
    Date of Patent: June 4, 2019
    Assignee: LSIS CO., LTD.
    Inventors: Jong-Chul Jung, Yong-Gee Cho
  • Device and method for assessing dynamic stability
    Patent number: 10312682
    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: Grant
    Filed: April 12, 2016
    Date of Patent: June 4, 2019
    Assignee: LSIS CO., LTD.
    Inventors: Hong Joo Kim, Ae Kyoung Bae, Young In Kim, Yoon Sung Cho
  • Energy management system
    Patent number: 10311056
    Abstract: Disclosed embodiments relate to data management apparatuses and methods of an energy management system. In some embodiments, the data management apparatus includes: a control unit configured to process data collected from a power system; and a real-time database composed of the processed data. The control unit may receive an input for entry selection for data inquiry on the real-time database irrespective of a hierarchy of a data entry and inquire data from the real-time database based on the received input.
    Type: Grant
    Filed: July 28, 2016
    Date of Patent: June 4, 2019
    Assignee: LSIS CO., LTD.
    Inventors: Shin-Jo Kong, Jong-Ho Park, Myung-Hwan Lee
  • Assembly structure for motor drive unit
    Patent number: 10314211
    Abstract: Disclosed herein is an assembly structure for a motor drive unit. An assembly structure for a motor drive unit is disclosed. The assembly structure does not require the time for rotating, laying down, or fastening the components during processes of producing it, so that the time required for production can be shortened. In addition, since no separate fastening part is required, the assembly structure can be simplified and the production costs can be reduced.
    Type: Grant
    Filed: December 27, 2017
    Date of Patent: June 4, 2019
    Assignee: LSIS CO., LTD.
    Inventors: Dong-Sik Kim, Chun-Suk Yang
  • Electric power system
    Patent number: 10310533
    Abstract: Disclosed herein is an electric power control system including a communication apparatus, a server, and a client, wherein the communication apparatus includes a communication unit operative to communicate with the client and server included in the electric power system to relay the service request received from the client to the server and relay the response to the service request received from the server to the client, a comparison/determination unit operative to compare a timeout time taken for the client to wait for the response to the service request with a processing time taken for the server to process the service request, and a controller operative to control the communication unit and the comparison/determination unit and to announce to the client that the processing time is longer than the timeout time when the processing time is longer than the timeout time.
    Type: Grant
    Filed: November 14, 2016
    Date of Patent: June 4, 2019
    Assignee: LSIS CO., LTD.
    Inventor: Jae-Hong Cha
  • Auxiliary relay of electromagnetic contactor
    Patent number: 10304646
    Abstract: The present invention relates to an auxiliary relay for an electromagnetic contactor, the relay including magnet members provided on both sides of a moving member, and first and second conductive members provided on both sides of a frame, whereby an ON or OFF state of the first and second conductive members can be controlled according to the magnet members, in response to a movement of the moving member, so as to configure various contact circuits, such as 1a 1b contact circuit, 2a contact circuit, 2b contact circuit and the like, for the electromagnetic contactor.
    Type: Grant
    Filed: July 13, 2017
    Date of Patent: May 28, 2019
    Assignee: LSIS CO., LTD.
    Inventor: Koanho Choi
  • Apparatus and method of measuring data in high voltage direct current system
    Patent number: 10305284
    Abstract: A data measurement device in a high voltage direct current (HVDC) system is provided. The data measurement device includes: a power measurement unit measuring pieces of power related data; and a control unit determining measurement times at which the pieces of power related data are measured respectively, and performing control based on pieces of power related data having a same measurement time among the pieces of power related data.
    Type: Grant
    Filed: March 10, 2016
    Date of Patent: May 28, 2019
    Assignee: LSIS CO., LTD.
    Inventor: Eun Jae Lee
  • Protocol converter
    Patent number: 10298723
    Abstract: The disclosure relates to a protocol converter that converts between a Modbus protocol and an ECHONET Lite protocol to enable communication between a device performing communication based on a Modbus protocol and a device performing communication based on an ECHONET Lite protocol. The protocol converter according to the disclosure comprises a first communicator connected to a first device that performs communication in a first protocol, a second communicator connected to a second device that performs communication in a second protocol, and a controller that converts the first protocol and the second protocol with each other to control communication between the first device and the second device.
    Type: Grant
    Filed: September 22, 2015
    Date of Patent: May 21, 2019
    Assignee: LSIS CO., LTD.
    Inventor: Sang Ki Shon
  • Apparatus for controlling inverter
    Patent number: 10298155
    Abstract: Disclosed herein is an apparatus for controlling an inverter. The apparatus controls a braking resistor connected in parallel with a DC link capacitor to switch to an ON or OFF state based on at least one of the temperature and the DC link voltage of the braking resistor.
    Type: Grant
    Filed: December 19, 2017
    Date of Patent: May 21, 2019
    Assignee: LSIS CO., LTD.
    Inventor: Sun-Woo Lee
  • IMMUNOASSAY EMPLOYING SULFATED POLYSACCHARIDE
    Publication number: 20190145965
    Abstract: Regardless of the type of specimen, such as a serum or heparinized plasma containing different anticoagulants, which are widely used in general, when a substance to be measured (for example, sIL-2R) in a biological sample is immunologically detected, a measuring method and a kit capable of stably obtaining with high accuracy, unaffected by interfering substances in the specimen, are provided. An immunocomplex between the substance to be measured and an antibody that specifically binds to the substance to be measured is formed in the presence of a sulfated polysaccharide. The kit comprises an antibody that specifically binds to the substance to be measured, and a buffer containing a sulfated polysaccharide.
    Type: Application
    Filed: April 12, 2017
    Publication date: May 16, 2019
    Applicant: LSI Medience Corporation
    Inventors: Ryuhei SHIMIZU, Keiichi SHOJI, Xu ZHANG
  • Trip device for circuit breaker
    Patent number: 10290446
    Abstract: A trip device for a circuit breaker includes: a crossbar rotatably installed to perform the trigger function; and bimetal that is curved upon the occurrence of an abnormal current and presses and rotates the crossbar by means of a gap adjustment member. The crossbar is movable in the direction of a rotating shaft of the crossbar, and the gap adjustment member is attached to and detached from either the crossbar or the bimetal at varying angles so that a contact surface is parallel or at an angle to the direction of movement of the crossbar.
    Type: Grant
    Filed: September 19, 2014
    Date of Patent: May 14, 2019
    Assignee: LSIS CO., LTD.
    Inventor: Ki Hwan Oh
  • Method for saving fault wave data
    Patent number: 10282244
    Abstract: There is provided a method for saving fault wave data, in which when a fault wave generated in a system is saved, a size of wave data is calculated, and the saving of the wave data is performed according to the size of the wave data, so that it is possible to implement the use of spaces of a buffer and a memory and the simultaneous saving of wave data simultaneously or subsequently generated. Accordingly, it is possible to minimize a delay in the saving of the wave data. Also, it is possible to record all accurate wave data even when consecutive faults occur. Also, it is possible to efficiently use the space of the memory.
    Type: Grant
    Filed: October 13, 2015
    Date of Patent: May 7, 2019
    Assignee: LSIS CO., LTD.
    Inventor: Ji Ung Kim
  • Transformer for reducing eddy current losses of coil
    Patent number: 10283260
    Abstract: Disclosed is a transformer for reducing eddy current losses of a coil, in which a cut part which is provided by removing a portion of a conductor is provided in each of an upper end and a lower end of a coil, and thus, eddy current losses caused by leakage flux are reduced. The transformer includes a core and a first coil and a second coil sequentially installed on a concentric circle to surround the core. A cut part which is provided by removing a portion of a conductor is provided at each of a first outer upper end and a first outer lower end of the first coil and a second inner upper end and a second inner lower end of the second coil to reduce an influence of leakage flux.
    Type: Grant
    Filed: October 16, 2015
    Date of Patent: May 7, 2019
    Assignee: LSIS CO., LTD.
    Inventor: Seungwook Lee
  • Inverter supplying power to induction motor for driving hoist
    Patent number: 10277143
    Abstract: The present disclosure relates to an inverter provided in a hoist system, which includes a scale unit configured to control a size of a DC link voltage of the inverter, a proportional-integral (PI) controller configured to perform PI-control on an output of the scale unit and an output voltage of the inverter and outputting a control signal, a first calculating unit configured to sum a command frequency of the inverter and the control signal, and a voltage determining unit configured to determine an output voltage of the inverter from an output frequency of the first calculating unit.
    Type: Grant
    Filed: April 20, 2018
    Date of Patent: April 30, 2019
    Assignee: LSIS CO., LTD.
    Inventors: Eun-Woo Lee, Jung-Han Kim
  • Apparatus for relaying data transmission in SCADA system
    Patent number: 10277674
    Abstract: Disclosed herein is an apparatus for relaying data transmission in a SCADA server. The apparatus includes: a communications unit configured to receive a data transmission request from the host server and transmit a target data request by the host server to the host server; a update unit configured to update event data corresponding to the target data among event data in the SCADA server and transmit the target data requested by the host server to the communications unit; and a synchronization management unit configured to synchronize the event data updated by the update unit with a backup SCADA server. Data transmission to a host server and control instruction reception from the host server in a SCADA system can be processed quickly and accurately.
    Type: Grant
    Filed: December 29, 2016
    Date of Patent: April 30, 2019
    Assignee: LSIS CO., LTD.
    Inventor: Jung-Kwang Je
  • Method for controlling interrupt in inverter
    Patent number: 10275374
    Abstract: Disclosed herein is a method for controlling interrupts in an inverter. If a control unit checks that an interrupt is issued in main software while an inverter is operating, the control unit analyzes the type of the interrupt. The interrupt is converted into an interrupt ID sorted by functionality. If the interrupt ID is a previously registered interrupt ID, an interrupt function corresponding to the registered interrupt ID is executed.
    Type: Grant
    Filed: March 20, 2017
    Date of Patent: April 30, 2019
    Assignee: LSIS CO., LTD.
    Inventor: Bong-Ki Lee
  • Solar pump system and method for controlling solar pump system
    Patent number: 10273951
    Abstract: A solar pump system comprises a solar module configured to generate DC power from sunlight, a water pump, an inverter configured to convert the DC power into AC power in order to drive the water pump, and a controller configured to generate a control signal for controlling an output frequency of the AC power. The controller compares the DC link voltage with a first reference level, adjusts the output frequency of the AC power, if the DC link voltage is greater than the first reference level, and determines the output frequency to prevent the DC link voltage from being equal to or less than a second reference level, if the DC link voltage is less than the first reference level.
    Type: Grant
    Filed: December 12, 2017
    Date of Patent: April 30, 2019
    Assignee: LSIS CO., LTD.
    Inventor: Chaebong Bae