A 7-Parameter Platform for Smart and Wireless Networks Monitoring On-Line Water Quality

Among variegated efforts supporting the application of Internet-of-Things technologies to the management of Smart Cities and to environmental monitoring, we present a novel wireless sensors network for drinking water. While the majority of IoT systems for water handling are developed for remote metering and leakage detection, here we focus on safety and quality. In particular, the compact electronic board performs analog conditioning, acquisition and Could-based processing of pH, temperature, conductivity, thickness of micrometric deposit fouling the pipes, flow rate and pressure in real-time with state-of-the-art resolution. The electronic system also manages battery recharge, harvesting energy (15 mA) from the velocity of water, data logging and transmission through the LTE network. Experimental results of continuous real-time operation of three nodes for several days are reported.