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Development of an automation and control design system for lowland tropical greenhouses


Citation

Wan Ismail, Wan Ishak and Razali, Mohd Hudzari and Tan, M. Y. (2013) Development of an automation and control design system for lowland tropical greenhouses. Pertanika Journal of Science & Technology, 21 (1). pp. 357-366. ISSN 0128-7680; ESSN: 2231-8526

Abstract / Synopsis

Vapour pressure deficit (VPD) analysis introduces an approach to develop a better basis for the control of the environment of lowland greenhouses in Malaysia. The study of vapour pressure deficit (VPD) is to show air moisture conditions for plant production while taking into account different temperature levels. The purpose of this project is to develop a real-time automatic temperature and relative humidity control system in the lowland tropical greenhouse using a PIC16f876A microcontroller. The controller will then be used to monitor the temperature, relative humidity and VPD in the planting of Chili Kulai (Titisan 15). The fertigation system was introduced to the greenhouse to fertilize and irrigate the plant as well as to provide moisture to the environment. A swamp cooler was used to bring down the temperature and increase moisture content in the greenhouse. Ventilators were installed to remove the heat in the greenhouse. The study was carried out in an experimental greenhouse located at the Institute of Advanced Technology, Universiti Putra Malaysia (UPM).


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Additional Metadata

Item Type: Article
Divisions: Faculty of Engineering
Publisher: Universiti Putra Malaysia Press
Keywords: Mmicrocontroller; Gantry system; Automation system; fertigation system; Plant growth parameter
Depositing User: Muizzudin Kaspol
Date Deposited: 23 May 2014 16:45
Last Modified: 18 Sep 2015 09:27
URI: http://psasir.upm.edu.my/id/eprint/28621
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