• Proceedings of the Korean Radioactive Waste Society Conference
• /
• 2017.10a
• /
• pp.95-96
• /
• 2017

• Proceedings of the KIEE Conference
• /
• 2008.07a
• /
• pp.614-615
• /
• 2008

This paper describes the status of advanced technologies and technical analysis for development of Korean next generation maglev. The propulsion systems of worldwide maglev and research status of Korean maglev have been represented.

• Proceedings of the Korean Institute of Communication Sciences Conference
• /
• 2006.07a
• /
• pp.218-218
• /
• 2006

• Proceedings of the Korean Institute of Communication Sciences Conference
• /
• 2006.07a
• /
• pp.726-726
• /
• 2006

• Proceedings of the Korean Operations and Management Science Society Conference
• /
• 2004.05a
• /
• pp.335-338
• /
• 2004

In this paper, we present a perspective of the next generation mobile communication services and its characteristics. As a preliminary research work on the next generation mobile communications and services, we exploit the next generation mobile services [1]. We define the next generation mobile services as strata of services consisting of three different service levels, the service areas, the service functionalities, and the service technologies. We derive these service levels by means of the scenario based analysis. Finally, we propose a conceptual network architecture that can support the next generation mobile services by placing network functions and service elements within the network.

• Proceedings of the KIEE Conference
• /
• 2002.07a
• /
• pp.6-8
• /
• 2002

In this paper present Autonomous Adaptive Digital Over Current Relay which acts autonomous setting using voltage and current measured by relay in the change of power systems. Automation of relay setting is required for distribution automation although manual relay setting is used at present. This paper presents Autonomous Relay Setting which knows change of the power system and acquires setting element using the Recursive Least Squares. Relay setting is very difficult work. But proposed relay is expected to decrease burden of relay setting using acquired information of power system change and autonomous setting. Also fast protective ability is expected according to change of power system.

• Proceedings of the Korean Magnestics Society Conference
• /
• 2003.12a
• /
• pp.150-150
• /
• 2003

• Proceedings of the Korean Institute of Communication Sciences Conference
• /
• 2006.07a
• /
• pp.731-731
• /
• 2006

• Proceedings of the Korean Institute of Communication Sciences Conference
• /
• 2004.11a
• /
• pp.95-95
• /
• 2004

• Proceedings of the KIEE Conference
• /
• 2002.11b
• /
• pp.265-267
• /
• 2002

In this paper, the communication between Over-Current Relay agents is realized using DNP(Distributed Network Protocol), which is the standard communication protocol of distribution automation system in KEPKO. The key words in OCR agent communication are defined and represented by use of DNP application function code. And the DNP index for OCR agent is defined. The proposed communication scheme is tested by use of Communication Test Harness, a test tool for DNP protocol to show its soundness.