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Development of Variable Rate Sprayer for Oil Palm Plantation.


Wan Ismail, Wan Ishak and Razali, Mohd Hudzari and Mohd Noor, Muhammad Ridzuan (2011) Development of Variable Rate Sprayer for Oil Palm Plantation. Bulletin of the Polish Academy of Sciences-Technical Sciences , 59 (3). pp. 299-302. ISSN 0239-7528


This project describes the design and development of a camera vision with color detection for the variable rate technology (VRT) automated sprayer. In this project, the smart sprayer system was already developed and mounted on the ATV. The automated sprayer system was developed by combination of the electromechanical system, PC parallel port relay board, the controller and visual basic programming software. This smart sprayer system is guided with the camera to detect the presence of weeds. Detection of weeds is based on the green color value from RGB value. The amount or percentage (%) of weeds detected determines the rate of spraying that is controlled by an electric motor and the relay board. In this project, the spray nozzles were modified to be fully open, fully closed and half open. The closing and opening of valves were controlled by the electromechanical system that receives the instruction from the camera vision. Experiments carried out shows that the nozzle is closed when the percentage of weeds detected is less than 2%. It is half open at 3% to 50% and fully open at more than 51%. The application rate of spraying can be determined from the result of the spraying operation.

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Additional Metadata

Item Type: Article
Divisions: Faculty of Engineering
DOI Number: https://doi.org/10.2478/v10175-011-0037-7
Keywords: Chemical sprayer; Boom sprayer; Camera; RGB; Computer pixel; Normally open valve; Nnormally closed valve.
Depositing User: Muizzudin Kaspol
Date Deposited: 02 Oct 2014 05:32
Last Modified: 09 Oct 2015 08:04
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.2478/v10175-011-0037-7
URI: http://psasir.upm.edu.my/id/eprint/23330
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