Sensor Network and Energy Harvesting Solutions Towards Water Quality Monitoring in Developing Countries.

Water-borne diseases pose a significant challenge to the sustainability of healthcare in developing countries like Ethiopia. While wireless sensor networks (WSN) address many environmental and societal issues through various applications, energy harvesting approaches extend the network's life. The paper describes a water quality monitoring system (WQM) using energy-harvesting wireless sensor networks. The paper identifies the considerations and trade-offs of various energy harvesting methods and WSNs solutions for WQM. In addition to presenting a real-time system for monitoring water quality, the paper examines the system's lifetime with a solar energy harvesting circuit. In addition, the paper discusses the problems encountered during system installation in the field. The field test is currently underway, but the prototype that has been implemented and tested shows that the system produces close to accurate values in various scenarios and can operate continuously without power outages. As a result, the energy harvesting technique ensures an indefinite lifetime for an economically viable water quality monitoring using WSN. [ABSTRACT FROM AUTHOR]