Development of an automation and control design system for lowland tropical greenhouses
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 temp...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English English |
| Published: |
Universiti Putra Malaysia Press
2013
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| Online Access: | http://psasir.upm.edu.my/id/eprint/28621/1/Development%20of%20an%20Automation%20and%20Control%20Design%20System%20for%20Lowland%20Tropical%20Greenhouses.pdf http://psasir.upm.edu.my/id/eprint/28621/ http://www.pertanika.upm.edu.my/Pertanika%20PAPERS/JST%20Vol.%2021%20%282%29%20Jul.%202013/07%20Page%20365-374.pdf |
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| Summary: | 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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