Re: Can you score in autonomous yet?
 

1625 tried many times at the St. Louis regional, scoring only one "virtual tube". :D (The tube fell out of our gripper at the start of autonomous, and the robot proceeded to perfectly maneuver and move the arm such that it would have scored if the tube hadn't fallen out. FRUSTRATING!) We were having lots of mechanical difficulties with our arm, though, so we couldn't really even score in manual mode very well.

Re: Can you score in autonomous yet?
 

375 scored 3 keepers in New Jersey, with 1 more being blocked by an alliance partner, and 2 more positioned perfectly, with less than half a second needed to drop.

This was all using the camera, and I hope to retune, making it better.

Re: Can you score in autonomous yet?
 

We were 4" off in our final match (using camera). We plan to have the final bugs out at Boilermaker (of course :) ).

Good luck,
Sam

Re: Can you score in autonomous yet?
 

We got one keeper on the bottom rack using dead reckoning. we were one of only a few teams at new Jersey that was able to score in autonomus.

Re: Can you score in autonomous yet?
 

In the name of honest accounting...

Our autonomous never worked in competition, since something was causing the infrared sensors to trigger prematurely. We've since adjusted it, but it will be Atlanta before we see if it works for real.

Re: Can you score in autonomous yet?
 

so far our bot will ram the rack, we have been brainstorming to make the camera work and it might come competition time but as it stands it will run into the rack hopefully stopping all other autos from working.

Re: Can you score in autonomous yet?
 

On a similar note, ours didn't work either. We also had sensor trouble all through the first couple of days (our arm actually ripped through one of its pots during inspection, afterwards the inspector looked a bit wary) which got in the way of getting the PID to work. We will be working at Palmetto on Practice Day to try to get something happening, probably just rotating our arm into playing position. (its on a turret) I still really want that keeper on the rack though...

Re: Can you score in autonomous yet?
 

:rolleyes:

Re: Can you score in autonomous yet?
 

our robot is under the "sit and look pretty" option for now. we may change that though. but i no that 1610, 384, and 1086 all hung keepers at VCU. if i left any robot that did it, let me no. in fact, 116 may have done it once.

Re: Can you score in autonomous yet?
 

We burned one of our fix it windows reviewing stuff today, and we're happy to say all our auto-command table code is working and the auto arm positioning was doing just what it should (first try too! Since when does code EVER work on the first try!?). It wasn't tuned perfectly, but we were able to reduce most of the overshoot with about 2 minutes of tuning, wasn't much point in doing more than that since we'll have to retune for the real robot (and not a crappy hacked '06 bot mockup) at Arizona.

I didn't see alot of keepers scored week 1, but I was happy to see at least a few got it working (or tried anyway), I hope we can continue the tradition and if things continue to fall our way like this we may even get to try some of that crazy double ring score we wanted.

Re: Can you score in autonomous yet?
 

We compete in a few days. During practice we did it 10 times in row and did it at a practice match twice no problem.

See it in action:
http://youtube.com/watch?v=iBQoGrs1XKQ

We will see how it really works at competition.

We had hardware delivered a week and half before ship date. We spent 60 hours perfecting the auto mode. It is not easy.

So why didn't many succeed? Many because software guys did not have enough time with the bot, thank you again hardware guys for delivering a bot to us early!!!!!

Re: Can you score in autonomous yet?
 

Our robot has an autonomous routine, fairly simple and it worked in our test rack at home. Maybe not 100% but it would get to the rack at least. It was a hit-or-miss chance it would hook the tube. Go to the green light, if no green light stop. (Okay, a little more complicated than that, but we have to keep some secrets ;) )

After watching our robot in Manchester go loopy and run to the side wall, as well as a couple of other robots doing similar antics, I have a possible answer. The camera picks up stray green lights, particularly reflections off the side walls. As it gets closer to the rack, the (real) green light gets smaller and the ghost light becomes the bigger target.

We finally worked on Kevin's code and a couple of other adjustments and here is the result (thanks to our finals alliance team mates at 172 "Think Pink" for uploading the video!):

http://www.youtube.com/watch?v=P-mKZxMb3bc&NR

(hope I typed that in right.)

We talked to the lead field crew, who says she tested the field for just such a problem and did not find the ghost lights. To be fair I don't remember the results in the practice room, which she suggested. We also had the default color -- no adjustments there.

There may be other issues -- the green timer bar on the big screen, for example -- that neither one of us thought of, and we will continue to track it down. But when I saw other robots doing the same thing, veering off to the sidewalls just like our robot, I feel it is a problem, something we obviously have to overcome.

I don't know why more robots weren't doing autonomous. When I saw the Kickoff I thought it would be difficult, but it ended up being simple. In a way, I'm thankful there aren't more robots doing autonomous -- it would make the field awfully crowded! And yes, those two points were well worth the many sleepless nights!

Re: Can you score in autonomous yet?
 

The autonomous mode for our bot involved dropping a lance like arm and driving full speed forward untill we hit something. We changed it to half speed after while.


Chris

Re: Can you score in autonomous yet?
 

Scoring in Autonomous?

Pff no problem at all ;)

Re: Can you score in autonomous yet?
 

we just did another test tonight, and got an 18/23 consistency. part of the problem is that our defense robot smashed into the camera frame, therefore rendering our positioning system useless...

we hope to bring it up to 24/24 consistency by the weekend (=