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-   -   Lessons Learned - The Negative (http://www.chiefdelphi.com/forums/showthread.php?t=76863)

MrForbes 22-04-2009 23:42

Re: Lessons Learned - The Negative
 
I have to admit it was kind of hard to read the rules that I had in my pocket on my USB drive all weekend....

Nice acronyms.

Greg Peshek 22-04-2009 23:42

Re: Lessons Learned - The Negative
 
Quote:

Originally Posted by dlavery (Post 854017)
And then include an iPod Touch in every KOP so the teams can read the Manual. Call it the "FIRST Robotics On-line Display Object (FRODO)". Which could be an element of a larger system of electronic manuals, known as the "Student's Handheld Internet Reference Encyclopedia (SHIRE)."

Now just add the Self Automated Manual Wielding Intense Search Engines (SAMWISE) and Manual Offering Rule Directives Overridden Regularly (MORDOR) to keep us constantly updated on the status of bumper rules and the like. Also the GDC would be referred to as Supervisors Acting Upon Rule Obstructing Ne'er-do-wells (SAURON). (It should be noted I don't think people who bring up rule issues are Ne'r Do Wells)

Chris is me 22-04-2009 23:45

Re: Lessons Learned - The Negative
 
I do have a negative!

Why did this game feature and emphasize camera tracking of non-lit targets when lighting conditions were inconsistent between regionals? Hell, in Atlanta the lighting conditions changed with the number of clouds in the sky and this screwed up robots. Vision Targets should be lit if they're going to be featured.

MrForbes 22-04-2009 23:48

Re: Lessons Learned - The Negative
 
The camera is in the kit mainly to keep the programmers busy.

It was successfull for that purpose, we spent about 4 weeks of programming time getting it working well in the shop, used it for one practice match at our first regional, tried to calibrate it that day, and didn't use it the rest of the season. Finally took it off Friday morning in Atlanta.

Kind of like that lead screw thing, and the energy chain. It keeps students busy.

EricH 22-04-2009 23:57

Re: Lessons Learned - The Negative
 
Quote:

Originally Posted by dlavery (Post 854017)
OK, on that one I will admit that even Aidan and I had to refer to the manual just to be sure our memories were correct. :)

There's another point to be made here...

If a pair of GDC members, one of whom is the Head Ref, have to refer to the manual, that they wrote, to make a call, because they aren't sure they remember the rule, then it just might be that the said tome is getting a little thick...

Admittedly, the backup robot rules are in the "obscure" Section 9, which tends to be overlooked in the rush to get to Sections 6, 7, and 8.

santosh 23-04-2009 00:19

Re: Lessons Learned - The Negative
 
Quote:

Originally Posted by iCurtis (Post 853476)
I beg to disagree. Most of these games weren't entirely one dimensional, and I'd say 2007 definitely had two dimensions.

2005- Stack tetras on top of goals or place tetras under goals
2006- Shoot balls through upper goal or deposit them through lower goal
2007- Place Ringers or lift robots. (This game was definitely not one dimensional
2008- Hurdle Trackball over overpass or Herd Trackball under overpass or race around the track
2009- Put balls in Goal

Granted, in 2005 good teams all stacked. In 2006 though, 195 and 1902 rose to fame playing exclusively with the lower goal. Other teams may have too, but my memory is starting to fail me. 2007 definitely was not one dimensional, as those bonus points for lifting robots were important, and lifting robots was not an easy task. 2008, most good robots did hurdle. However, at GSR a herder (58) captained an alliance all the way to the finals, and 148 played an integral role in the RoboSimChickens Championship victory. This year, we all did the same thing though.

That said, I'd love to play another 2004-esque game. :D
(It seems FIRST Frenzy is quickly acquiring some sort of cult status as a magical perfect game around here...)

True true, however, in 2005, 2006 (Sans the end game ramp), 2007, and 2008, only 1 of the field elements was used to score. that is aside from the thing you actually score on.
in 04, you had the 2x ball, you had the kick balls, I think but cant remember if there was a bonus for winning auto (wouldnt mind leaving that in the shed bc we cant get a great auto yet haha...), moving goals, stationary goals, stairs, and the bar.

It really makes for fun strategizing. especially if you are going against a team like 71 who collected the balls after they fell from above the driver station, could 2x i believe, and hang from teh bar.

It makes for a more fun game to watch and as a tour guide to many VIPs throughout the years, it makes it more fun for potential sponsors to watch.

and yeah,

Vikesrock 23-04-2009 00:29

Re: Lessons Learned - The Negative
 
Quote:

Originally Posted by EricH (Post 854040)
There's another point to be made here...

If a pair of GDC members, one of whom is the Head Ref, have to refer to the manual, that they wrote, to make a call, because they aren't sure they remember the rule, then it just might be that the said tome is getting a little thick...

Admittedly, the backup robot rules are in the "obscure" Section 9, which tends to be overlooked in the rush to get to Sections 6, 7, and 8.

I disagree with this. By definition the Einstein backup rules are only relevant to a very small number of teams one time a year. It is important to have a rule for this procedure in case it is needed, but I am perfectly fine referees needing to reference a manual to recall this rule.

GaryVoshol 23-04-2009 07:10

Re: Lessons Learned - The Negative
 
I disagree as well. The important thing is that Dave and Aidan knew that special rules exist for Einstein backups, and knew where to find them.

All teams should have someone who knows the manual that well.

ebarker 23-04-2009 07:37

Re: Lessons Learned - The Negative
 
Quote:

Originally Posted by squirrel (Post 854029)
Kind of like that lead screw thing, and the energy chain. It keeps students busy.

Keep them under lock and key !! Otherwise you can't get anything done. Ha Ha .

.

Lil' Lavery 23-04-2009 17:05

Re: Lessons Learned - The Negative
 
Quote:

Originally Posted by Chris is me (Post 854025)
Why did this game feature and emphasize camera tracking of non-lit targets when lighting conditions were inconsistent between regionals? Hell, in Atlanta the lighting conditions changed with the number of clouds in the sky and this screwed up robots. Vision Targets should be lit if they're going to be featured.

I'm going to echo this.
If FIRST is going to provide teams with an expensive piece of technology and even more expensive controls designed to work with it, they should ensure that said technology should be not only possible, but plausible to work with at each and every event/venue.
To the best of my knowledge, only a single team scored in autonomous during the entirety of the Championship event (40). A number of teams who had previously used successful tracking code (2056, 1712, 612, etc) were unable to successfully accomplish the feat in the Georgia dome to changing lighting (both from the skylights and the actual arena lights) and the color similarities between the red seats and the pink vision target.

Koko Ed 23-04-2009 17:32

Re: Lessons Learned - The Negative
 
Quote:

Originally Posted by Chris is me (Post 854025)
I do have a negative!

Why did this game feature and emphasize camera tracking of non-lit targets when lighting conditions were inconsistent between regionals? Hell, in Atlanta the lighting conditions changed with the number of clouds in the sky and this screwed up robots. Vision Targets should be lit if they're going to be featured.

So next year FIRST puts a Weather control device in the KOP and everything will be fine.

martin417 23-04-2009 17:35

Re: Lessons Learned - The Negative
 
Several teams on Curie were able to track consistently with the camera, some scored in autonomous, notably 27 and 1771. It was a challenge, but it was possible... at least until 5:08 PM (when the sun went behind part of the dome).. then it wouldn't work at all.

Nate Smith 24-04-2009 06:34

Re: Lessons Learned - The Negative
 
Quote:

Originally Posted by BurtGummer (Post 853406)
Once again, I will state that FIRST needs to look into something here. We are not the only school who has started out in FRC and not FTC or FLL. I did not set our team up, our sponsor rep did. We didn't even know what FRC was. All I am trying to say is that there are two different types of rookies in FRC. Rookies with prior robot experience in FTC and FLL, and complete newbies to the entire field of robotics. I think that is a fair statement, and not one which criticizes any teams that do have prior experience. It isn't their problem, it's something FIRST should look into.

I apologize that my post sounded like I am criticizing these teams. I found the facts about their history, and I applaud them for it. It is a deal with how FIRST is handling it, not them.

Unfortunately, once you decide to call an FTC team who transitions to FRC for the first time anything other than a rookie, you get into a whole mess of other "what ifs." Just a few that came to mind include:
  • A team who has competed in VRC, but then jumps straight to FRC
  • A team who has previously competed in Botball
  • A team who has previously competed in BEST
  • A team who has previously competed in NRC
This only includes other high school level competitions, and doesn't take into account other factors, such as an existing robotics curriculum at the school, or previous individual experience of any member of the team.

To look at it from a different angle, look at the sports world that FIRST is trying to some degree to emulate. I don't believe (and I may be wrong at this, as I don't really follow sports to this degree) that you would find any pro sports program who would say that a "rookie" player would only be considered one who had never touched the ball before in their life.

synth3tk 24-04-2009 12:15

Re: Lessons Learned - The Negative
 
That's true. A rookie to the NBA may have played ball since middle school, but they still call him a "rookie" because he never played for the NBA in his life, yet he still played the game sometime before.

EricH 24-04-2009 13:45

Re: Lessons Learned - The Negative
 
Quote:

Originally Posted by Nate Smith (Post 854495)
To look at it from a different angle, look at the sports world that FIRST is trying to some degree to emulate. I don't believe (and I may be wrong at this, as I don't really follow sports to this degree) that you would find any pro sports program who would say that a "rookie" player would only be considered one who had never touched the ball before in their life.

If any pro sports program did that, they'd probably be violating child labor laws...

To even get into the pro sports leagues, you have to be at least decent. That means you have to handle the game object a bit...

FRC4ME 24-04-2009 15:19

Re: Lessons Learned - The Negative
 
Quote:

Originally Posted by EricH (Post 854620)
If any pro sports program did that, they'd probably be violating child labor laws...

To even get into the pro sports leagues, you have to be at least decent. That means you have to handle the game object a bit...

True; I don't think anyone has ever picked up a basketball for the first time in his life and instantly been a star player ("hey, I think I have a knack for this!").

Greg McKaskle 24-04-2009 20:50

Re: Lessons Learned - The Negative
 
Quote:

I'm going to echo this.
If FIRST is going to provide teams with an expensive piece of technology and even more expensive controls designed to work with it, they should ensure that said technology should be not only possible, but plausible to work with at each and every event/venue.
The lighting was indeed challenging, but I don't think the clouds were that much of an issue. I was measuring the light level at various times during the day on Saturday. The light level measured at the front of the stands stayed within a factor of two of the spec level. I wasn't able to check on other days, where it may have had more impact. On the other hand, when the timeout was called on Einstein, the disco lights started going full tilt. Good thing teams weren't trying to calibrate their camera during their timeout.

I can't directly compare to previous years that used the camera, but levels were checked at the majority of the regional events, and only needed adjustments a few times to bring them into spec. That doesn't mean it was ideal, however. The dark curtain, the lack of conistency in the lighting in the background, and the spotlight positioning made it difficult for the camera to meter the light and get a good exposure. With the data and experience gained, I think the camera will be better utilized in coming years. Additionally, having a moving target being shot at from a moving platform with a slow projectile is more than just a vision problem. Personally I think the lead estimation and the lack of scoring benefit was the primary reason for the camera being underutilized.

While discussing the event lighting, I'll also mention that few teams took advantage of the lunch hour for measuring the field or calibrating the camera. At the three regionals where I assisted with this, three or four teams gave it a shot. In Atlanta, the red seats and pink target were close to each other in color, but they could be differentiated with a small change to the hue threshold. I don't know how many people asked the NI AIs, but only two teams asked me for help with vision. The vision sessions I presented were also not well attended. IMO, inconsistent lighting isn't the only issue.

Greg McKaskle

MrForbes 24-04-2009 21:07

Re: Lessons Learned - The Negative
 
Greg--we gave up at our first regional....although Steve gave us a lot of help that Thursday at lunch, we didn't have time to get the camera working reliably, so we changed strategy and everything worked out ok.

Alex Cormier 25-04-2009 11:08

Re: Lessons Learned - The Negative
 
The final 4 setup, show and all was LAME. Where did the 4 division champs robot parade go? Where did the big entrance for Dave go? Why were there so many speeches in between the matches? The big finish was merely a boring cable show.

GoSparx 25-04-2009 13:28

Re: Lessons Learned - The Negative
 
Quote:

Originally Posted by Alex Cormier (Post 854925)
The final 4 setup, show and all was LAME. Where did the 4 division champs robot parade go? Where did the big entrance for Dave go? Why were there so many speeches in between the matches? The big finish was merely a boring cable show.

Agreed. My best memory of FIRST Championships is Dave V. riding out in a car to ZZ Top's Sharp Dressed Man. Best ever.

Lil' Lavery 25-04-2009 14:53

Re: Lessons Learned - The Negative
 
Quote:

Originally Posted by Greg McKaskle (Post 854795)
The lighting was indeed challenging, but I don't think the clouds were that much of an issue. I was measuring the light level at various times during the day on Saturday. The light level measured at the front of the stands stayed within a factor of two of the spec level. I wasn't able to check on other days, where it may have had more impact. On the other hand, when the timeout was called on Einstein, the disco lights started going full tilt. Good thing teams weren't trying to calibrate their camera during their timeout.

I can't directly compare to previous years that used the camera, but levels were checked at the majority of the regional events, and only needed adjustments a few times to bring them into spec. That doesn't mean it was ideal, however. The dark curtain, the lack of conistency in the lighting in the background, and the spotlight positioning made it difficult for the camera to meter the light and get a good exposure. With the data and experience gained, I think the camera will be better utilized in coming years. Additionally, having a moving target being shot at from a moving platform with a slow projectile is more than just a vision problem. Personally I think the lead estimation and the lack of scoring benefit was the primary reason for the camera being underutilized.

While discussing the event lighting, I'll also mention that few teams took advantage of the lunch hour for measuring the field or calibrating the camera. At the three regionals where I assisted with this, three or four teams gave it a shot. In Atlanta, the red seats and pink target were close to each other in color, but they could be differentiated with a small change to the hue threshold. I don't know how many people asked the NI AIs, but only two teams asked me for help with vision. The vision sessions I presented were also not well attended. IMO, inconsistent lighting isn't the only issue.

Greg McKaskle

Greg,

I certainly don't think I had intended that as a shot against the camera or technology or support that NI supplied this year. It was NOT intended that way.

I agree that the game challenge was the biggest cause of the camera being underused by teams, but I feel that has as much to do with the specific choice of target teams were asked to follow. Similar to the last time we had an unlit target (2005), there was minimal success by teams. However, with a backlit target in 2006 ans 2007, success was much more widespread. This is especially true in 2006, when the value of tracking the target was readily apparent and incredibly high.

Greg McKaskle 25-04-2009 16:40

Re: Lessons Learned - The Negative
 
Quote:

I certainly don't think I had intended that as a shot against the camera or technology or support that NI supplied this year. It was NOT intended that way.
I didn't take it that way. Sorry if my response was a bit negative. I was delighted to see so many videos of people tracking and playing with the stuff in their shops. I met with a number of students that went pretty deep and wrote their own code, so all in all, I think that the learning happened even if the game wasn't a great showcase for it.

Greg McKaskle


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