Implementación de un sistema automatizado de filtrado y purificación de agua para el Centro Experimental de Riego de la Facultad de Recursos Naturales de la ESPOCH.

Abstract

The present graduation work implemented the automation of the water filtering and purifying process at the Experimental Irrigation Center of the ESPOCH to optimize the irrigation filtration time in the blackberry plantation. For this, the implementation of a control system through hysteresis (ON-OFF) for the pressure variable in the filtering system and the soil humidity for the irrigation activation, was selected. The work has an Interface Machine-Human (HMI) where the ways to operate the filtering system are displayed: handy and automatic. When the process is automatic, it starts with the measuring of humidity by the node modules of the humidity sensor located at the blackberry plantation. These humidity values will be sent to the ARDUINO controller and later displayed in the HMI located in the filtering zone. The humidity data will be sent in 10 minutes time intervals. Upon having the humidity values below the optimum limits for the blackberry culture, the automatic filtering system activation and the plantation irrigation are carried out. If the process is carried out manually, the operator will be able to activate the electro-valves to conduct the plantation irrigation or the retro-washing of the filter. Once the automation is carried out, the irrigation times are reduced by a 50% for the blackberry plantation. It is recommended that, before the system use, an inspection may be performed in the piping and stopcock of the ESPOCH Irrigation Experimental Center; this way pressure losses and the increase of the blackberry plantation time will be avoided.