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Lego NXT 2.0 Mindstorms competition at Elkom fair - autonomous can collecting robot

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Uploaded on Mar 8, 2010

We participated and won the competition with my school team (Visa, Niko and me) from Metropolia.

There were ten participant teams, other teams were mainly from Helsinki University of Technology, but also from Tampere University of Technology, Oulu University of Applied Sciences and Lappeenranta University of Technology.

IN A NUTSHELL:
The robot automatically arranges cans on the grid to a chosen corner, also the colors of the can and the tile need to match. In the beginning the cans are in random order. We used RobotC to program the robot.

RULES in more specific:
The field is 2m x 2m and consists of black and white 20cm x 20cm square tiles.
- You are not allowed to affect the robot in any way during the round, it needs to operate fully autonomously
- The robot is not allowed to exit the grid while carrying a can
- The colors of the can and the tile need to match
- After arranging the cans, the robot needs to return to the starting tile
- You get points for every correctly placed can in the goal-area
- If the can count is even between competitors, performance time is compared

MORE:
There was only two weeks of time to program and assemble the robot, so we really had to work long hours. Biggest problems were caused by the round shape of the cans. Because round shape reflects ultrasonic sound and IR-light in a way that makes it hard for the sensors to perceive them.

A link for more information on the robot:
http://www.youtube.com/watch?v=u8q_cp...

Official site (in Finnish):
http://www.eis.fi/ect/robokisa.php

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