A Case Study on the Implementation of a River Water Level Monitoring System using PLC(Programmable Logic Controller) and Public Telecommunication Network
A river water level monitoring system which prevents salt water damages and effectively excludes floods has been developed to contribute efficient operation of Nakdong river estuary barrage. The system can be used for monitoring upstream conditions more quickly and do appropriate responses over changes. Telemetry and telecontrols using PLCs have been built at the three sites that directly influence on the operation of barrage gates, and are linked to Nakdong river estuary barrage’s IOS (Integrated Operation System) through public communication networks. By using PLC, the system can achieve even higher reliability and versatility than before as well as easy management. By power control devices, we can remotely control the power of PLCs to treat the minor troubles instantly without going on-sites. The power control devices also save data in preparation for the cases of communication failures. The system uses ADSL (FTTH) as a main network between SCADA server and PLCs, and CDMA (M2M) as a secondary network. In order to compensate security vulnerabilities of public communication network, we have installed the VPNs for secure communication between center and the observation stations, just like a dedicated network. Generally, river water level observations have been used custom-manufactured remote terminals to suit their special goals. However, in this case, we have established a system with open architecture considering the interface between different systems, the ease of use and maintenance, security, price, etc.
Abawajy, J. and Robles, R. J., “Secured Communication scheme for SCADA in Smart Grid Environment,” Journal of Security Engineering, Vol. 7, No. 6, 2010.
Bailer, D. and Wright, E., “Practical SCADA for industry,” Burlington: Newnes, 2003.
Barbosa, R. R. R. and Pras, A., “Intrusion Detection in SCADA Networks,” International Federation for Information Processing, pp. 163-166, 2010.
Belekar, S. B., Desai, A. A., and Dakre, A., “PLC SCADA based Distribution Monitoring & Control,” Multidisciplinary Journal of Research in Engineering and Technology, Vol. 1, , No. 1, pp. 105-110, 2014.
DiNanno, J. M. and Changy, D., “Selecting the right RTU and SCADA System,” Whitmor/Technotrade, Sept, 2005.
Geoke, D. and Nguyen, H., “SCADA System Security,” ECE 478-Network Security, Oregon State University, March, 2005.
Graham, J. H. and Patel, S. C., “Security considerations in SCADA communication Protocols,” Intelligent System Research Laboratory Tecchnical Report, University of Louisvile, September, 2004.
Hentea, M., “Improving Security for SCADA Control systems,” Interdisciplinary Journal of Information, Knowledge, and Management, Vol. 3, 2008.
Hong, S. J., “Industrial network technologies and applications,” C&I, special Issue, May, 2010.
Jung, S. B. and Yang, S. I., “A study on effective management method of the flood forecast system using PDA,” Journal of Korea Information Processing Society, Vol. 17-A, No. 4, October, 2010.
Kang, D. J. and Robles, R. J., “Compartmentalization of Protocols in SCADA Communication,” International Journal of Advenced Science and Technology, Vol. 8, pp. 27-36, 2009.
Kim, S. J., Lim, T. S., and Kim, M. S., “A case study on implementation of Integrated Operation System of the Nakdong River Estuary Barrage due to the barrage gate extension,” Journal of Society for e-Business studies, Vol. 20, No. 1, 2015.
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