In this paper, a new remote terminal unit(hereafter RTU) is proposed to manage a wide range of
applications and a variety of sensors (eg, , pressure, water quality, temperature and humidity sensors,
the amount of pollutants, CO2 , etc.) to monitor and control the facility such as water treatment plant,
intake and effluent pumping station, water tank and distribution network. Fault status of local sensor
devices and network are alerted by using the embedded fault handling capabilities of the RTU in the
system and also sent to the fault handling server, by which fault can be easily monitored to users. The
developed system was applied to one of K-water branch offices in Geoje city and improved its
reliability and stability for controlling and monitoring water facility.
