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    Economical Smartphone-Integrated and Automated High Tunnel Greenhouse System on the Navajo Nation

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    Author
    Bethke, Calder
    Issue Date
    2023
    Keywords
    automation
    greenhouse
    microcontroller
    Advisor
    Kacira, Murat
    
    Metadata
    Show full item record
    Publisher
    The University of Arizona.
    Rights
    Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction, presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
    Abstract
    The Navajo Nation has a lack of access to nutritious and fresh produce-based food. High tunnel greenhouses have become more popular for leafy greens and other fresh produce. However, it can be challenging and time-consuming to produce crops without environmental controls for optimal crop quality and yield. This project demonstrated an economical smart-phone integrated and environmentally controlled greenhouse system to improve greenhouse management, therefore making a high tunnel greenhouse on the Navajo Nation more data accessible, productive, and engaging for the user. This was done by controlling the air temperature in the aerial environment and irrigation with a sensor-based feedback control using low-cost microcontrollers, radio transmission, and Wi-Fi, and by providing the owner via smartphone with greenhouse environmental data and notifications. The system was able to keep the greenhouse within 11 K of the outside temperature, and was an improvement over natural ventilation in providing a more favorable environment for crop production, especially during periods of low wind.
    Type
    Electronic Thesis
    text
    Degree Name
    M.S.
    Degree Level
    masters
    Degree Program
    Graduate College
    Biosystems Engineering
    Degree Grantor
    University of Arizona
    Collections
    Master's Theses

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