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Re: WEEK 1
How successful was camera tracking week 1? I know in the past there has been a lot of varability and trouble due to inconsistent lighting.
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I'm just curious; Are you wide or long (robot)? |
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Our tracking software didn't have any problems at HH, which took place in a gymnasium.
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In our own testing, our tipping system works very well with power to spare (imagine a robot doing push-ups or a low-rider car with hydraulic suspension hopping up and down!). The real test will be our first ever competition in Cheney Washington April 5-7. |
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Well, it turns out that the top seed at San Diego is 4161. The do not shoot from what I hear from a little birdie at San Diego, all they did was coopertition.
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Week 1 is never perfect!!
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As far as I can tell, it's all about teamwork. Timing, possession and consistency.
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I learned that when you go into Week 1 at 119.8 lb, you can't add new stuff without taking something off. Hmmm. Software upgrades work. 1's and 0's are light.
A few of the things that would be useful on the robot: - A good way to see under the far side of the bridge. - A good way to clear balls from under bridges. - A good way to tip the bridge to your side without any of the balls going under the bridge. - A good way to tip the bridge for somebody else without blocking their path or having to lead them over the bridge. - A better way to keep balls from getting rolled under the chassis. - Shooter wheels that aren't affected so much by ball variation. |
Re: WEEK 1
Something that surprised me at San Diego was how different alliance selection ended up being in comparison to previous years, mostly because the coopertition bonus allows teams that cannot shoot baskets consistently to seed very high. In every previous regional that I have attended, the uberbots who could hang all the rings or score all the balls invariably seeded in the top eight, and alliance selection consisted of the 1st seed picking the 2nd seed, the 3rd seed becoming the 2nd seed and picking the new 3rd seed, and so on. At San Diego, no alliance's 2nd pick was from the top eight, since most of the really strong scorers had been too specialized towards shooting to do coopertition in many matches. This meant that the elimination alliances were more balanced than in previous years, and I did not get the impression that any one alliance was significantly stronger than the others.
Based on these observations and from looking at the team ranking charts, I have concluded that it may be more important to get coopertition points than to win a match if one wishes to be highly seeded, which strikes me as somewhat counterintuitive to my competitive sensibilities but probably reasonable. Has anyone calculated any sort of "sweet spot" for number of matches won without coopertition vs. matches lost with coopertition? Would it even be possible to calculate this? On the whole, I really like Rebound Rumble. The qualification matches can be rather boring if everyone just stays on their own side, but the endgame is very tense and exciting, especially in the eliminations when an alliance goes for a three-bot balance and only makes it in the last few seconds. Near-realtime scoring is a very good thing, since I don't have to wait until the end of a match to see who actually won after penalties are calculated. I look forward to seeing how everyone adapts and adjusts in reaction to what we have learned this weekend. |
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Of course, the formula would vary from regional-to-regional (teams score different amounts at each regional) and match-to-match (it is probably best to spend more time balancing against weaker opponents.) I would use scouting, experience, and common sense instead of a formula. |
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Well, we had to take off the ball manipulator on our robot due to weight problem... I am fearful of the mediocre shooters converting into feeder bots and playing defense. |
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What I learned:
- As usual, Week 3 will be nothing like Week 1. I think this is exacerbated this year though, as originally teams had been very reluctant about defense given the number of safe zones. Even with two absolutely fantastic scorers (341 and 1218), shut-down defense let our alliance win by a wide margin in basically every elim match. Stats:- I don't think Co-Op necessarily skews seeding too much, and this will likely decrease even more as teams get better at balancing. 341 and 1218 ranked 1st and 2nd whether sorted officially, by Teleop Points, by Teleop + Hybrid, by Teleop + Bridge, or by Teleop + Bridge + Hybrid. (Of course, they're also the 1st and 3rd OPRs in the country...) Overall it seemed that most strong teams realized the importance of Co-Op, and were ready to use it when beneficial (basically always). Stats: Quote:
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Yes, 1218 used the "charminator" (like terminator) to measure ball squishiness. As their OPR and Blue Banner can attest, they're a fantastic shooter because of it. 341 took a different tactic, putting huge (I mean huge) backspin on the balls so they fall basically straight down once they hit the backboard no matter what. Quote:
Sheet 1 of the attached worksheet has the elimination match score differentials for the Hatboro-Horsham's winning alliance and the pre-finals teleop estimates for the Impact of Inbounder Chicken. Sheet 2 has the seeding differences with and without Coopertition. |
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