• 한국항행학회논문지
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• 제18권5호
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• pp.513-517
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• 2014

본 논문에서는 대기환경의 악화 방지와 개선을 위하여 현재 수동으로 관리되고 있는 집진기 관리시스템을 대신하여 무선을 이용하여 집진기를 관리하는 RF 모니터링 시스템을 설계하고 구현하였다. 제안한 시스템은 산업현장 내 다수의 집진기에 대한 가동시간, 전력량, 차압값 등을 무선으로 모니터링 하여 관리자의 PC에 표시하고 저장할 뿐만 아니라 장애 발생 시 이를 관리자의 휴대폰으로 알려 줌으로서 고부가가치의 집진기 모니터링 시스템의 구현이 가능하다. 따라서 본 논문에서 구현한 RF 모니터링 시스템을 통하여 대기배출원관리시스템(SEMS)에 각 집진기의 정보를 기록함에 있어서 불필요한 손실을 줄일 수 있다.

• 상하수도학회지
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• 제33권5호
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• pp.329-339
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• 2019

Recently, the advancement of information and communication technology(ICT) is expanding the connectivity through Internet of Things(IoT), and the media of connection is also expanding from wire/cable transmission to broadband wireless communication, which has significantly improved mobility. This hyperconnectivity has become a key element of the fourth industrial revolution, whereas the supervisory control network of purification plants in korea is operated as a communication network separated from the outside, thereby lagging in terms of connectivity. This is considered the best way to ensure security, and thus there is hardly any consideration of establishing alternatives to operate an efficient and stable communication network. Moreover, security for management of a commercialized communication network and network management solution may be accompanied by immense costs, making it more difficult to make new attempts. Therefore, to improve the conditions for the current supervisory control network of purification plants, this study developed a industrial security L2 switch that supports modbus TCP(Transmission Control Protocol) communication and encryption function of the transmission section. As a result, the communication security performance improved significantly, and the cost for implementing the network management system using Historical Trend and information of HMI(Human Machine Interface) could be reduced by approximately KRW 200 million. The results of this study may be applied to systems for gas, electricity and social safety nets that are infrastructure communication networks that are similar to purification plants.