Team 135 Autonomous

[arpitshah]

wowwww...that is sooooooooo fascinating...can u guys upload some videos or something so that we can have a look at it.....m dying to see that amezing machine....and the technology

[CyberWolf_22]

Originally Posted by arpitshah

wowwww...that is sooooooooo fascinating...can u guys upload some videos or something so that we can have a look at it.....m dying to see that amezing machine....and the technology

I agree I think a lot of team would love to see how you are doing this. At least tell everyone what sensors you are using to do this. This sounds like you have put a lot of work in to it and I hope it is very successful during the game.

[Team 135]

We are using a Logitec USB webcam, interfaced into a gumstix computer. The gumstix computer is interfaced with all of our encoders and IR sensors via eithernet. The webcam is able to move vertically to see where the ball is. So as we are driving up to the rack it will move up to see the ball. The gumstix computer is running Python linux, with C++ and spin programing running on it. The bot is able to distiguish between red and blue as pre programmed before the match. We are also able to tell it where the starting position is. All of this is done with an onboard screen. The other great thing is we can see the output of the camera directly on a screen on the bot. The on board computer records video of the match so we can replay the entire match when it is over.

[T3_1565]

how are you powering the gumstix computer??? and are you allowed onboard screens??? sounds really cool though would love to see video!

[Dan Petrovic]

Innovation in Control, anyone?

That sounds awesome! I wish I could see it in person.

[Team 135]

I am sorry to say that I will not be able to post video now because we did not take any. We will try to take some at St. Louis. The gunstix is powered from the main robot battery. It is also tied into the backup battery to allow it to continue running during minor power fluxuations from the main battery. We also built in a charging circuit for the back up battery.

As I posted before if you would like to see it...see it at one of the competitions that we will be at below

St. Louis
Purdue
Atlanta

[Richard Wallace]

This sounds really cool and I look forward to seeing it in action.

Originally Posted by Team 135

... The gunstix is powered from the main robot battery. It is also tied into the backup battery to allow it to continue running during minor power fluxuations from the main battery. ...

(emphasis added)

A direct connection of your custom circuit to the RC backup battery would violate <R73>. This was clarified by an official Q&A response by the GDC here.

Per <R55> your custom circuit must be powered either via a 20A circuit from your breaker panel, or by one (or more) of the +5V pin(s) on the Robot Controller. I assume that you meant to say that the Robot Controller's backup battery will allow your custom circuit to continue running during minor power fluctuations.

[Qbranch]

That sounds fantastic. Please post when you have video of it all running... or, at any rate, I'll see you guys at purdue (as usual, you all were great in '06!)

How long does the cycle take?

How many points can you make in 15sec? (i.e. do you also drive over lines or anything)

Ditto on CMU cam working great for finding trackballs. We didn't try it, but 1501's ability to find our teams shirts... eh... I mean a blue ball... sure convinced me!

Sounds like a great project, please post a video.

-q

[Manoel]

Originally Posted by Richard

This sounds really cool and I look forward to seeing it in action.(emphasis added)

A direct connection of your custom circuit to the RC backup battery would violate <R73>. This was clarified by an official Q&A response by the GDC here.

Per <R55> your custom circuit must be powered either via a 20A circuit from your breaker panel, or by one (or more) of the +5V pin(s) on the Robot Controller. I assume that you meant to say that the Robot Controller's backup battery will allow your custom circuit to continue running during minor power fluctuations.

Richard,

Team 358 posted a clarification to their question, and the GDC allowed teams to use the +7.2V "PWM pins" for power.

[Richard Wallace]

Originally Posted by Manoel

Team 358 posted a clarification to their question, and the GDC allowed teams to use the +7.2V "PWM pins" for power.

Thanks, Manoel.

[Kingsmen]

This is a picture of the screen and on the left a little bit of the webcam.

[afi419]

Looks nice, wish I had stuff like that to play with.

[Wayne Doenges]

IMHO the CMU cam is just as configurable.
We can find both balls (no matter where they are on the overpass) during autonoumous (we don't use Hybrid) and knock them down in 15 seconds.
We are using the CMU cam (to find the balls)and acoustic sensors (to find the walls).

Good luck Team 135. See you at BMR.

[Team 135]

The main way that we are finding the balls are through blob tracking, color filters, circle recognition, and line recognition.

[Uberbots]

thats REALLY cool!
is it 100% accurate?