Application of signal processing technique for the modification of a fruit sorting machine Online publication date: Sat, 12-Jul-2014
by Hiwa Golpira; Hêmin Golpîra
International Journal of Advanced Mechatronic Systems (IJAMECHS), Vol. 5, No. 2, 2013
Abstract: The objective of this study involves the optimise process of a sorting machine for spherical fruits, which are currently manually classified with a low level of efficiency in Iran. An instrumentation system is modelled and fabricated for the development of a fruit sorting machine. Mechanical components and control system are assembled on a chassis for fruit transferring and classifying. A gravity duct transfers the fruits toward six ejection points which is manipulated by pneumatic cylinders and magnetic valves. Peak signal to noise ratio (PSNR) criterion is employed to analyse the work quality of the mechatronic system. The PSNR experimental results specify that noise and vibration significantly affect the machine performance. To redesign the fabricated machine, the mechanical system of conveyor and actuators are separated from measuring and control unit. Field trials were conducted to modify the machine characteristics based on the minimum damage for the fruits. To avoid bruising in apple fruits, Golab variety, the duct slope was fixed at 0.02 which produces the maximum fruit velocity of 1 m/s. With no injury on apple fruit the sorting capacity of 130 kg/h is achieved for the machine.
Online publication date: Sat, 12-Jul-2014
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Advanced Mechatronic Systems (IJAMECHS):
Login with your Inderscience username and password:
Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.
If you still need assistance, please email email@example.com