Electronics and Telecommunications Research Institute

Korea Electric Power Corporation

Byung-Tae Jang

Jung-Sook Kim

Nam-Ho Lee

Jong-Hyun Park

Jeong-Dan Choi

Kyung-Bok Sung

Jae-Han Lim

Mi-Jeong Kim

Jeong-Yeol Han

Jong-Kee Choi

Yong-Ho An

You-Jin Lee

Seok-Kon Kim

Jong-Min Park

Min-Soo Kim

Dong-Sun Lim

Jin-Kyu Choi

Kyeong-Tae Kim

Jae-Jun Yoo

Chang-Sub Shin

Ju-Wan Kim

Gwang-Ja Jin

Myung-Hee Son

Inhak Joo

Dae-Seung Yoo

Do-Hyun Kim

Nam-Dae Kim

Tea-Kyun Kim

Eunkyu Lee

A transformer hydrogen gas monitoring system according to an embodiment of the present invention may comprise: a sensor module, which is disposed to allow at least a part thereof to meet hydrogen gas in a transformer and measures a resistance value of a member having a variable resistance value according to a hydrogen concentration in the transformer; and a multi-task module for receiving a sensing result of the sensor module, generating hydrogen concentration information corresponding to resistance value information included in the sensing result, and remotely transmitting information corresponding to the generated hydrogen concentration information.

Transformer hydrogen gas monitoring system, device, and method

The present invention relates to to an IEC 61850 information-based agent system for intelligent system management by a digital substation and an operation method therefor. To this end, an operating system-side agent device for sharing switch information, which is used in automatic recovery of a digital substation, between an operating system and an intelligent electronic device (IED) in the digital substation, the device including: a request unit requesting the switch information from an intelligent electronic device-side agent device mounted in the intelligent electronic device (IED); and a communication unit receiving the switch information from the intelligent electronic device-side agent device, the switch information being collected by the intelligent electronic device-side agent device, wherein the operating system-side agent device is provided as a module, and is mounted in the operating system.

Agent system for intelligent system management by digital substation and operation method therefor

The present invention relates to a client suitability test apparatus for a substation automating system with regard to IEC 61850 service between virtual intelligent electronic devices (IEDs) and clients for a plurality of IEDs, wherein the apparatus comprises: a suitability test process generating unit using at least one test model selected from among a plurality of predefined test models, and modeling a suitability test process to test the suitability of a client; a suitability test executing unit for calling a test process model, and executing a suitability test on a client according to the content of the test process model; a communication packet analyzing unit capturing and analyzing a communication packet on a communication response of a virtual IED and the communication request of a client according to the suitability test executing unit; and a test grading unit for grading the suitability test of the client based on test grading conditions of the test process model called by the suitability test executing unit.

Client suitability test apparatus and method for a substation automating system

Disclosed herein are a method and apparatus for generating multiband Radio Frequency (RF) signals in maritime wireless communication. The apparatus includes a baseband conversion unit, a phase compensation unit, a Direct Current (DC) offset compensation unit, and an RF transmission unit. The baseband conversion unit converts RF signals corresponding to a baseband modulation signal having a negative frequency and a baseband modulation signal having a positive frequency into baseband signals, respectively. The phase compensation unit eliminates the images of multiband signals so as to correspond to the baseband signals. The DC offset compensation unit compensates the baseband modulation signals for DC offsets using the multiband signals from which the images have been eliminated. The RF transmission unit generates the RF signals using the signals which have been compensated for the DC offsets, and sends the RF signals via an antenna.

Apparatus and method for generating multiband radio frequency signals in maritime wireless communication

Provided are a reliability-based, real-time sensor network medium access control (MAC) communication system and method using a superframe. The superframe includes an active duration which is a time duration in which a communication is established, and a sleep duration which is a time duration in which no communication is established. The active duration includes a beacon block in which a plurality of beacon transmission nodes are respectively allocated beacon slots for transmitting a beacon frame, and a forwarding block in which each of sinks nodes is allocated a slot for unifying data regarding the sink node and data regarding sensor nodes managed by the sink node and transmit the result of unifying in order to establish a communication between the sink nodes and between each of the sink nodes and a base station.

Reliable and low-latency sensor network MAC system and method using superframe

Provided are a system and method for processing sensing data from a sensor network. The system includes: a data processing condition managing unit for storing sensing data processing conditions; a data processing function managing unit for storing sensing data processing function information; a processed data managing unit for storing processed sensing data; a data pattern managing unit for storing sensing data pattern information; an acquired data managing unit for storing sensing data; a data acquisition condition managing unit for storing sensing data acquisition conditions; a user requirement acquiring unit for acquiring the sensing data acquisition conditions; a data acquiring unit for acquiring sensing data; a data pattern extracting unit for extracting the pattern of sensing data; a data generating unit for processing the sensing data; and a data processing unit for processing the sensing data.

System and method for processing sensing data from sensor network

A rental software providing system and a method thereof, and its rental software providing server and a wireless terminal are disclosed. The rental software providing system using a prefetching scheme includes: a wireless terminal for notifying a network connection state, and a hardware state of the wireless terminal to a rental software providing server in order to perform the prefetching scheme; and a rental software providing server for prefetching partial programs of a rental software to be used in the wireless terminal by using a prefetching managing unit and a pattern analyzer and transmitting the prefetched partial programs to the wireless terminal.

System and method for providing rental software, and rental software providing server and wireless terminal thereof

An apparatus and method of preventing a collision of vehicle in a crossroad are disclosed. The apparatus includes: an information generating unit installed at each of roads near the crossroad for generating real-time vehicle information by integrating vehicle's information including a speed and a position provided from the vehicles on each of the roads and traffic sign information; and an information collecting and providing unit for providing the traffic sign information to the information generating unit, collecting vehicles' information in real-time from the information providing means of a predetermined road near the crossroad, storing the collected information, and providing the collected information to vehicles approaching the crossroad through another roads for the vehicles to predict a collision in the crossroad.

Apparatus and method for preventing collision of vehicle at crossroads

Growing community of inventors

Daejeon, South Korea

Byung-Tae Jang