African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6576

Full Length Research Paper

Fuzzy irrigation greenhouse control system based on a field programmable gate array

Domingo Gómez-Melendez1, Alvaro López-Lambraño2*,Gilberto Herrera- Ruiz2, Carlos Fuentes2, Enrique Rico-Garcia2, Carlos Olvera-Olvera3, Daniel Alaniz-Lumbrerasc3, T eobaldis Mercado Fernández4 and Sven Verlinden5
1Universidad Politécnica de Querétaro, Carretera Estatal 420 S/N, El Rosario, C.P. 76240, El Marqués, Querétaro, México. 2División de Investigación y Posgrado, Facultad de Ingeniería, Universidad Autónoma de Querétaro, Centro Universitario, Cerro de las Campanas s/n, C.P. 76010, Querétaro, Qro, México. 3Universidad Autónoma de Zacatecas, Jardín Juárez 147 Centro Histórico, C.P. 98000 Zacatecas, México. 4Colegio de Postgraduados, Km 36.5 Carretera México-Texcoco, C.P. 56230, Montecillo, Texcoco, Estado de México, México. 5Division of Plant and Soil Sciences, West Virginia University, Morgantown, WV 26506, USA.
Email: [email protected]

  •  Accepted: 16 May 2011
  •  Published: 04 June 2011

Abstract

Fuzzy logic provides a methodology to represent, manipulate, and implement heuristic knowledge to control a system. In this work, the development of a fuzzy irrigation control system based on a field programmable gate array (FPGA) to control greenhouse fertigation was presented. Factors involved in crop nutrition were discussed first. Next, the description of the fuzzy control system was presented, followed by the analysis and design of the fuzzy controller, and its implementation, a FPGA-integrated circuit. The FPGA system is not only flexible (it can be easily reconfigured and reused for different designs) but it also provides rapid prototyping and offers the capability to perform multiple operations at the same time, producing positive economic returns. The design, compilation, and simulation of the system were developed in Active-hardware description language (HDL) using the hardware description language, very high-speed integrated circuit hardware description language (VHDL). Results from simulation and experiments showed the simplicity of the design, the viability of its implementation, and the low cost that the use of a fuzzy logic controller and FPGA system represents.

 

Key words: Fuzzy logic controller, irrigation system, field programmable gate array (FPGA).