Design of a light tracking system using machine vision technique

Kareem, Samir A. Abdul and Akmeliawati, Rini and Muhida, Riza (2011) Design of a light tracking system using machine vision technique. In: 2011 4th International Conference on Mechatronics: Integrated Engineering for Industrial and Societal Development (ICOM 2011), 17-19 May 2011, Kuala Lumpur, Malaysia.

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Abstract

A two degree of freedom (DOF) light tracking system is presented in this paper. It uses a web camera as a vision sensor, PC sound cards as output signal controllers, and two DC motors as a pan-tilt driver mechanism. The sound card is expected to produce a higher output signal in a PWM form to drive the motors. The motors will react accordingly when they receive the signals to ensure that the camera always focuses on the centroid of the light source. The system used image processing technique to detect and determine the location of the light source and was programmed to send PWM through the sound card to drive the motors to correct the error produced from the light movement. In MATLAB programming environment, a closed-loop control is implemented to provide interaction between camera and sound cards as devices to control the motors to track the light source. The system has been designed and tested with various locations of light source. The data which were obtained by experiments indicate the ability of the proposed controller.

Item Type:	Conference or Workshop Item (Full Paper)
Additional Information:	5806/5376
Uncontrolled Keywords:	data acquisition , image processing , light tracking system , pulse-width modulation , sound card
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering > Department of Mechatronics Engineering
Depositing User:	Prof. Dr. Rini Akmeliawati
Date Deposited:	14 Nov 2011 15:32
Last Modified:	09 May 2012 16:31
URI:	http://irep.iium.edu.my/id/eprint/5376

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