Desarrollo del control para un sistema de riego para cuatro válvulas incluyendo retrolavado y fertirrigación desarrollado en la Empresa PRODURIEGO en la ciudad de Quito DM

Abstract

The objective of this project was to create an irrigation control system to improve the water supply to crops. With the design and construction of the control prototype, an attempt was made to make it more economical, to be applied to various types of crops and to be accessible to small agricultural producers. For the development, information was used from other existing irrigation control systems in the national and international market. Next, the various components were selected, which were housed within a board, the control card was programmed with the C ++ language and the following parameters and criteria were considered for this purpose: control mode (manual or automatic), type of crop, irrigation system and time, a backwash system was included whose purpose was to clean the irrigation system and the drip lines. A liquid crystal screen was used to observe the menu of the different functions of the system, a programmable clock was included to avoid the deconfiguration of the operating time due to loss of electrical energy, a matrix keyboard facilitates the entry and updating of system data. The electrovalves control relays were wired to activate the drip lines. A low-pressure pump is controlled with a contactor and the program performance tests were performed. Calculations on fertigation were also made, such as: concentration, area to be treated, volume of solution to be applied and the duration of the injection. It is concluded that this system is 67% cheaper than the systems that are commercialized in the market. It is recommended to have several of these systems for lands larger than 100 m2 and to have them under cover to avoid failures in this control system.