Intelligent temperature control of a tropical post-harvest storage system

Oluwo, Adeyinka Abdulquadri and Khan, Md. Raisuddin and Salami, Momoh Jimoh Eyiomika (2015) Intelligent temperature control of a tropical post-harvest storage system. In: 2015 10th Asian Control Conference (ASCC 2015), 31st May- 3rd June 2015, Kota Kinabalu, Sabah.

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Abstract

Control of the complex nonlinear post-harvest storage process is essential to guarantee food security. Intelligent means of control come very handy in handling nonlinear processes. In this research an optimal fuzzy logic controller (FLC) is developed and simulated in MATLAB, with a post harvest storage system model for temperature control of cylindrically shaped foods. Using performance indices such as root mean square error (RMSE) and product mean temperature difference (PMTD), the FLC is optimized through a search process considering two factors, namely, type and number of membership functions (MFs). Several common membership functions (Gaussian, Gbell, Trapezoidal, Triangular and a combined Triangular/ Trapezoidal MFs) were tested with varying sizes of 3, 5 and 7 numbers of MFs. The combined type (Triangular MF with trapezoidal shoulders) with RMSE value of 2.4344 and PMTD value of 5.4649 was found to have the best performance.

Item Type:	Conference or Workshop Item (Invited Papers)
Additional Information:	3627/45228
Uncontrolled Keywords:	fuzzy logic control postharvest storage simulation temperature control
Subjects:	Q Science > QA Mathematics > QA75 Electronic computers. Computer science T Technology > TJ Mechanical engineering and machinery > TJ212 Control engineering
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering > Department of Mechatronics Engineering
Depositing User:	Prof Momoh-Jimoh Salami
Date Deposited:	26 Oct 2015 09:22
Last Modified:	23 May 2016 14:06
URI:	http://irep.iium.edu.my/id/eprint/45228

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