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Modification of a commercial PWM sprayer control system for precision farming application


Citation

Shahemabadi, Ali Rafiei and Moayed, Majid Javid (2008) Modification of a commercial PWM sprayer control system for precision farming application. In: 3rd International Symposium on Information Technology (ITSim'08), 26-28 Aug. 2008, Kuala Lumpur, Malaysia. .

Abstract

The control system of a commercial sprayer was modified for variable–rate control of 12 individual solenoid shut off valves spaced 0.5 m apart on a sprayer boom. The variable-rate control system consisted of pulse width modulation (PWM) solenoids, a by pass control valve, and nozzle control system interfaced to a computer. An algorithm was developed to vary application rate across the booms with computing the best possible combinations of pulse width at the optimal boom through the computer control program for nozzles. This algorithm compensates inaccuracy of applying desired application rate due to pressure fluctuations across the booms.


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Additional Metadata

Item Type: Conference or Workshop Item (Paper)
Divisions: Faculty of Computer Science and Information Technology
Faculty of Engineering
DOI Number: https://doi.org/10.1109/ITSIM.2008.4631862
Publisher: IEEE
Keywords: Control system; Sprayer; PWM
Depositing User: Nur Farahin Ramli
Date Deposited: 25 Nov 2013 02:28
Last Modified: 13 Jul 2020 07:05
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1109/ITSIM.2008.4631862
URI: http://psasir.upm.edu.my/id/eprint/23960
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