Diseño de Sistema de Irrigación Automático, Utilizando SCADA y Red de Sensores Inalámbrica

Abstract

The paper describes the design of an automatic irrigation system, using SCADA software and wireless sensor network. Design was made with drip irrigation system method and, the communication between the field and the supervisor system was established using ZigBee devices connected in mesh topology. SCADA System supervises four variables from the field: temperature, soil moisture content, water and nutrients level and ZigBee device status. When a determined value of temperature or soil moisture is reached, the system evaluates if the water and nutrients pipe’s valves must be opened or closed. Device’s status is monitored every time for detecting node failures and, in case of any issue, the user can take decisions on time for avoiding loss of data. This design was made with five ZigBee nodes, but it might be expanded as desired. The paper also explains the complete process, including analysis and comparison of different protocols used for wireless sensor network, as well as the analysis for selecting the appropriate irrigation method.