roboparade workshop ii cj chung, ph.d. founder & director of robofest and roboparade brought to...
TRANSCRIPT
RoboParade Workshop IICJ Chung, Ph.D.
Founder & Director of Robofest and RoboParade
Brought to you by a grant from
• Veteran RoboParade team members and coaches
• Rookie teams that took Oct 9 workshop at Lawrence Tech
This workshop is for
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• Tribot• Light sensor: 3• Sonar sensor: 4
• Left motor: A• Right motor: C
• Additional motor: B
Robot to be used
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• Endless loop– If sonar sensor detects an object
• Stop!
– Otherwise• Follow a black line
Review – Parade Program
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Review (2) – Parade Program
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Power: 50
“Flat View” of the Parade Program
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• for NXT-G 2.1 users: “broken file error” (1003) can be fixed by rewriting the code.
Please rewrite the program to review
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How and Where to start the robot?
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A C
How and Where to start the robot?
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A C
How and Where to start the robot?
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A C Lost…
Always safe to start on the line!
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C A
More reliable line following? Use two light sensors!
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Solution is available on www.robofest.net, tech resource/ workshop 1 / slide 23
How to make it go smoother? (without using additional light sensor)
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Let’s test on the test course
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• Registered spectators will be given a ballot (go to: www.lorenzoculturalcenter.com and click on schedule to register online)
• Teams will introduce Robotic floats• During the 2nd Official Parade:
– Floats violating the traffic law will be removed– People will select best float from only remaining
robots
RoboParade People’s Choice Award
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• Reliable line following is important – check light values
• Do not hit the robot in front – check sonar sensor value
• Test, test, and test!!!
First thing for People’s Choice Award
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• Check the sonar sesnor range– Inch– cm
• Cover the back of the robot with paper for the robot behind you
• Meet the robot team in front of you: ask them to cover the back
• May need to adjust your sonar sensor location based on the robot in front of you
Why not detecting the front object, sometimes?
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• Watch Previous RoboParade Videos– http://www.robofest.net/roboParade.htm
• See Pictures– http://www.robofest.net/roboParade.htm
• Think something “Wow” in order to win the People’s Choice Award
Ideas for floats
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• Decorations: You may use additional independent batteries for lighting
• You may put anything on your float• Musical Instruments
– Castanets– Triangles– Tambourines– Drums– …
• Movements on the float: use additional motors
Ideas for floats
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How to operate additional motors while following the line?
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• Move the mouse on the beam• Press shift, the you will see a spool • Drag and connect (click or double click)
How to connect a parallel sequence beam?
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• Wireless interaction between the robot and team players is strongly encouraged
• Sound sensor: claps, knocks• Light sensor: flashlight• Sonar sensor: hand waves
Interaction with your robot
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• Difficult to follow the line, if too long and too heavy
• In addition, it will make it difficult for the robot behind you to detect you
Comments on Trailers
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• Make a train with many smaller trailers, if you want to build a long float
• You may use strings to connect trailers for flexibility
Trailer II
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Trailer III – Heavy Object
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• Robot speed requirements: 4cm/sec ~ 18cm/sec (not too slow, not too fast)
• You cannot join the official parade unless your robot pass the test on:– Friday, November 19, 5:00 pm – 8:00 pm– Saturday, November 20, 10 am – Noon (for this
slot, teams must make an appointment)
• If you pass the test, you will be given an official flag
Remember
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• A team can enter only one robot float• If you have more than one float, then you
must enter another team
• All family members must be registered through Lorenzo Cultural Center to enter the event hall. Online registration available at www.lorenzoculturalcenter.com
Note to Coaches
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Happy
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