Sensor IoT de turbidez para medição submersa contínua

Abstract

This project addresses the growing need to monitor and care about water quality due to the human impact on the environment. The National Water Resources Plan highlights the importance of continuous monitoring and the related financial and logistical challenges. Water turbidity is a crucial indicator and the use of affordable probes could allow remote monitoring to be expanded. Thus, this works presents the development of a turbidity probe that uses both the nephelometric and turbidimetric methods, topologies that are implemented for infrared and white light emitters. The response of the sensors to different combinations of topology and light source is compared. In addition to the construction of the turbidity probe, the work also covers data transmission via the global network for mobile communications and the implementation of an online monitoring system using open source services such as Eclipse Mosquitto (MQTT), InfluxDB and Grafana.