National College Student Electronics Design Contest

2nd Prize in Hunan Province (2017)

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Ball rolling control system. A camera tracks the ball while servos tilt the board to steer it along the target trajectory.

Overview

In the four-day National College Student Electronics Design Contest, our team built a ball rolling control system: a flat board tilted by servos, on which a ball has to be moved between target positions and along prescribed paths.

System

• Sensing: a camera above the board detects the ball and reports its position in real time.
• Actuation: servos tilt the board about two axes to accelerate the ball in the desired direction.
• Control: a microcontroller runs a closed-loop controller from the measured ball position to the servo angles.

Result

The system achieved smooth and flexible trajectory control of the ball, and won the 2nd Prize in Hunan Province.