Ball positioning control system - Energy engineering, Aalborg University
0This video shows the work done by students of group EE4-406 at Aalborg University, Department of Energy Technology, June 2013.
The project features an electromechanical feedback control system with the objective of controlling the position of a poolball on a beam.
The position of the ball is measured with the laser attached on the end of the beam. This information is sent to a computer which translates the information into electric current driving the DC-motor. The rotation of the DC-motor changes the angle of the beam through a mechanical joint. Technically, there is a total of 3 control loops. The first loop is concerned with the power supply and its supplied current to a DC-motor. The current produces torque which turns the DC-motor, and this angle is measured to form the 2nd feedback loop. Finally the third and outer control loop is concerned with the ball position which is measured by the laser.
A joystick is connected to manually control the angle of the beam (by removing the outer loop of position, and using the axis of the joystick as angle-reference)