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감시제어 시스템의 신뢰성 향상을 위한 서버 및 네트워크 이중화
류길수(Keel-Soo Rhyu),윤병수(Byung-Soo Youn),임대근(Dae-Kwen Lim) 한국마린엔지니어링학회 2004 한국마린엔지니어링학회 학술대회 논문집 Vol.2004 No.-
Recently, together with development of communications technology, monitoring and control systems have been used in many fields. When monitoring and control systems are developed, one of important things is considered about a redundancy whenever hardware faults are occurred partly.<br/> In this paper, we introduce a monitoring and control system with a redundancy function for servers and networks. The system, therefore, has an active server and standby server. In fields. all field units have to be constructed 2 communication ports connected each server through communication lines. Also. each server's communication program is implemented by analyzing and handling fault elements, and is modularized for linking easily with a monitoring and control module. An experiment with 2 servers and 2 field units is constructed to demonstrate its effectiveness.<br/>