Tuesday, July 04, 2006

Ball and Beam experiment

This experiment is part of a course about computer controlled systems of computer science degree in the Las Palmas de Gran Canaria University (ulpgc). This course is all about systems automated control.

As a practical exercice we chose to build the ball and beam experiment. This is a quite simple system. It consists of a beam with controlable lean degree and a ball over it. The goal of the system is to position the ball at a specific point on the beam, and mantain the ball at that position.

All the control logic was implemented using matlab. The lean degree was controlled with matlab too, throug a serial port conected to the microcontroller of a Futaba servo attached to the beam.

The last experiment release implemented a PD control in closed latch. As a sensor position we use a webcam with some little image processing to detect where a yellow ball is positioned over the beam.


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