The LIBÉLULA project aims to solve the need for monitoring span of surface water quality information in freshwater natural and artificial systems. Each mobile and robotic monitoring system units (LIBÉLULA) is made up of several sub-systems for the collection of relevant water quality data and their transmission in real time to a central monitoring unit. The data will make it possible to identify contamination (pollution) sources, functioning as a decision-making tool to trigger the necessary environmental protection mechanisms.