Go to Post Well, there goes our bare aluminum corner tracking full field navigation system... - Whippet [more]
Home
Go Back   Chief Delphi > Competition > Rules/Strategy
CD-Media   CD-Spy  
portal register members calendar search Today's Posts Mark Forums Read FAQ rules

 
Closed Thread
 
Thread Tools Rate Thread Display Modes
  #1   Spotlight this post!  
Unread 12-01-2009, 10:41
Bongle's Avatar
Bongle Bongle is offline
Registered User
FRC #2702 (REBotics)
Team Role: Mentor
 
Join Date: Feb 2004
Rookie Year: 2002
Location: Waterloo
Posts: 1,069
Bongle has a reputation beyond reputeBongle has a reputation beyond reputeBongle has a reputation beyond reputeBongle has a reputation beyond reputeBongle has a reputation beyond reputeBongle has a reputation beyond reputeBongle has a reputation beyond reputeBongle has a reputation beyond reputeBongle has a reputation beyond reputeBongle has a reputation beyond reputeBongle has a reputation beyond repute
Send a message via MSN to Bongle
Re: Picking up balls or not

The most successful teams in 2006 were those that could both human-load and vacuum-load, though the human-loaded ones tended to be more common.

With that said, I think that human-loading will be far less effective this year than in 2006 because the human players are forbidden from leaving their little zones. One thing that stands out in my mind from 2006 was all 3 human players reloading one of the triplets in about 10 seconds in a hail of balls. In 2006, human-reloading effectiveness was very high because you were allowed getting all 3 of your alliance's HPs about 4 feet away from your robot simultaneously. With the rules for Lunacy, you can only get 1 human player close to your robot at a time because they are spread all over the field.

Also, you are extremely vulnerable while stopped for loading because:
A) Your opponents will have a dead-stopped trailer to aim at (and they'll have 2 HPs close to you). Your opponents might fire a ball or two in your hopper, but balls in your hopper aren't scored yet, so that doesn't matter much.
B) Your own human players might mis-chuck and fire a ball into your trailer by accident.

In review, why this year is not like 2006 and why I think vacuum-loaders will be more effective:
-Stopping to reload in 2006 did not expose you to getting scored on
-In 2006, you could reload at essentially triple the pace of this year, which made human reloading that much more attractive.

Last edited by Bongle : 12-01-2009 at 10:44.
  #2   Spotlight this post!  
Unread 12-01-2009, 10:44
MrForbes's Avatar
MrForbes MrForbes is offline
Registered User
AKA: Jim
FRC #1726 (N.E.R.D.S.)
Team Role: Mentor
 
Join Date: Feb 2006
Rookie Year: 2006
Location: Sierra Vista AZ
Posts: 5,991
MrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond repute
Re: Picking up balls or not

I think being able to pickup up balls will be helpful, but it will also be difficult due to the slippery driving situation.

We're going to try for both human and robot loading
  #3   Spotlight this post!  
Unread 12-01-2009, 10:52
johnr johnr is offline
Registered User
FRC #0910
 
Join Date: Jan 2007
Location: michigan
Posts: 567
johnr has a reputation beyond reputejohnr has a reputation beyond reputejohnr has a reputation beyond reputejohnr has a reputation beyond reputejohnr has a reputation beyond reputejohnr has a reputation beyond reputejohnr has a reputation beyond reputejohnr has a reputation beyond reputejohnr has a reputation beyond reputejohnr has a reputation beyond reputejohnr has a reputation beyond repute
Re: Picking up balls or not

Perhaps he was speaking of a seperate device for the grabbing and moving of empty cells so they would not mix in with moonrocks.
  #4   Spotlight this post!  
Unread 12-01-2009, 11:03
Tom Line's Avatar
Tom Line Tom Line is offline
Raptors can't turn doorknobs.
FRC #1718 (The Fighting Pi)
Team Role: Mentor
 
Join Date: Jan 2007
Rookie Year: 1999
Location: Armada, Michigan
Posts: 2,521
Tom Line has a reputation beyond reputeTom Line has a reputation beyond reputeTom Line has a reputation beyond reputeTom Line has a reputation beyond reputeTom Line has a reputation beyond reputeTom Line has a reputation beyond reputeTom Line has a reputation beyond reputeTom Line has a reputation beyond reputeTom Line has a reputation beyond reputeTom Line has a reputation beyond reputeTom Line has a reputation beyond repute
Re: Picking up balls or not

The crux of this game is different - in 2006 the human players couldn't score points directly. Human players - espcially the outpost players, have a great opportunity to contribute and to score.

So your question is more complex - should your human players be shooting them at your robot or the other robot?

1. What's the risk, if they miss, that the ball ends up in the trailer?
2. Can they score in the trailers of opposing teams accurately?
3. Is it worth the time it will take to move back to be reloaded? Holy - slow -motion Batman!

The correct balance of human scoring and robot scoring will win this - but It will probably take 3 weeks of regionals before we begin to see winning patterns emerge.
  #5   Spotlight this post!  
Unread 12-01-2009, 11:06
rfolea's Avatar
rfolea rfolea is offline
Registered User
AKA: Rick Folea
no team (Forsyth Alliance)
Team Role: Mentor
 
Join Date: May 2005
Rookie Year: 2005
Location: US
Posts: 210
rfolea has a brilliant futurerfolea has a brilliant futurerfolea has a brilliant futurerfolea has a brilliant futurerfolea has a brilliant futurerfolea has a brilliant futurerfolea has a brilliant futurerfolea has a brilliant futurerfolea has a brilliant futurerfolea has a brilliant futurerfolea has a brilliant future
Re: Picking up balls or not

Quote:
Originally Posted by Bongle View Post

In review, why this year is not like 2006 and why I think vacuum-loaders will be more effective:
-Stopping to reload in 2006 did not expose you to getting scored on
-In 2006, you could reload at essentially triple the pace of this year, which made human reloading that much more attractive.
... and in 2006 your robot could EXPAND after the start of the game to collect more balls and you didn't have to stay within the starting volume.
  #6   Spotlight this post!  
Unread 12-01-2009, 11:08
=Martin=Taylor= =Martin=Taylor= is offline
run the trap!!!
FRC #0100 (The Wild Hat Society)
Team Role: Human Player
 
Join Date: Feb 2006
Rookie Year: 2005
Location: Bezerkeley, California
Posts: 1,255
=Martin=Taylor= has a reputation beyond repute=Martin=Taylor= has a reputation beyond repute=Martin=Taylor= has a reputation beyond repute=Martin=Taylor= has a reputation beyond repute=Martin=Taylor= has a reputation beyond repute=Martin=Taylor= has a reputation beyond repute=Martin=Taylor= has a reputation beyond repute=Martin=Taylor= has a reputation beyond repute=Martin=Taylor= has a reputation beyond repute=Martin=Taylor= has a reputation beyond repute=Martin=Taylor= has a reputation beyond repute
Re: Picking up balls or not

Quote:
Originally Posted by Bongle View Post
The most successful teams in 2006 were those that could both human-load and vacuum-load, though the human-loaded ones tended to be more common.

With that said, I think that human-loading will be far less effective this year than in 2006 because the human players are forbidden from leaving their little zones. One thing that stands out in my mind from 2006 was all 3 human players reloading one of the triplets in about 10 seconds in a hail of balls. In 2006, human-reloading effectiveness was very high because you were allowed getting all 3 of your alliance's HPs about 4 feet away from your robot simultaneously. With the rules for Lunacy, you can only get 1 human player close to your robot at a time because they are spread all over the field.

Also, you are extremely vulnerable while stopped for loading because:
A) Your opponents will have a dead-stopped trailer to aim at (and they'll have 2 HPs close to you). Your opponents might fire a ball or two in your hopper, but balls in your hopper aren't scored yet, so that doesn't matter much.
B) Your own human players might mis-chuck and fire a ball into your trailer by accident.

In review, why this year is not like 2006 and why I think vacuum-loaders will be more effective:
-Stopping to reload in 2006 did not expose you to getting scored on
-In 2006, you could reload at essentially triple the pace of this year, which made human reloading that much more attractive.

These are excellent points.

Some other thoughts:
-If you can human load, it may make it easier to both collect empty cells and score super cells with the robot (drop the balls in the bot and score).
-If you have a big hopper for HP loading you may catch some of the other alliances missed shots

I still believe that HP loading will be faster than pickup b/c you won't have to chase down balls on the slippery surface. Chasing down 10 balls will take a fair amount of time...

One possible strategy is for the HP to toss them all in the same place so your robot can just zoom by and suck them up all at once. Kind of the best of both strategies eh?
__________________
"Cooperation; because life is a team sport"
-Philip J. Fry

Last edited by =Martin=Taylor= : 12-01-2009 at 11:12.
  #7   Spotlight this post!  
Unread 12-01-2009, 11:35
IndySam's Avatar
IndySam IndySam is offline
Registered User
FRC #0829 (Digital Goats)
Team Role: Mentor
 
Join Date: Nov 2005
Rookie Year: 2004
Location: Indy
Posts: 3,357
IndySam has a reputation beyond reputeIndySam has a reputation beyond reputeIndySam has a reputation beyond reputeIndySam has a reputation beyond reputeIndySam has a reputation beyond reputeIndySam has a reputation beyond reputeIndySam has a reputation beyond reputeIndySam has a reputation beyond reputeIndySam has a reputation beyond reputeIndySam has a reputation beyond reputeIndySam has a reputation beyond repute
Re: Picking up balls or not

Quote:
Originally Posted by Bongle View Post
The most successful teams in 2006 were those that could both human-load and vacuum-load, though the human-loaded ones tended to be more common.

With that said, I think that human-loading will be far less effective this year than in 2006 because the human players are forbidden from leaving their little zones. One thing that stands out in my mind from 2006 was all 3 human players reloading one of the triplets in about 10 seconds in a hail of balls. In 2006, human-reloading effectiveness was very high because you were allowed getting all 3 of your alliance's HPs about 4 feet away from your robot simultaneously. With the rules for Lunacy, you can only get 1 human player close to your robot at a time because they are spread all over the field.

Also, you are extremely vulnerable while stopped for loading because:
A) Your opponents will have a dead-stopped trailer to aim at (and they'll have 2 HPs close to you). Your opponents might fire a ball or two in your hopper, but balls in your hopper aren't scored yet, so that doesn't matter much.
B) Your own human players might mis-chuck and fire a ball into your trailer by accident.

In review, why this year is not like 2006 and why I think vacuum-loaders will be more effective:
-Stopping to reload in 2006 did not expose you to getting scored on
-In 2006, you could reload at essentially triple the pace of this year, which made human reloading that much more attractive.
Human players could score in 2006.

Other than that, I agree with what you say.
__________________
"Champions are champions not because they do anything extraordinary but because they do the ordinary things better than anyone else." —Chuck Knoll


2015 Indianapolis District Winner
2014 Boilermaker Regional Industrial Design Award
2013 Smoky Mountain Regional Industrial Design Award
2012 Boilermaker Engineering Excellence Award
2010 Boilermaker Rockwell Innovation in Control Award.
2009 Buckeye J&J Gracious Professionalism Award
2009 Boilermaker J&J Gracious Professionalism Award
2008 Boilermaker J&J Gracious Professionalism Award
2007 St Louis Regional Winners
  #8   Spotlight this post!  
Unread 12-01-2009, 11:49
s_forbes's Avatar
s_forbes s_forbes is offline
anonymous internet person
FRC #0842 (Falcon Robotics)
Team Role: Engineer
 
Join Date: Jan 2006
Rookie Year: 2006
Location: Phoenix, AZ
Posts: 1,134
s_forbes has a reputation beyond reputes_forbes has a reputation beyond reputes_forbes has a reputation beyond reputes_forbes has a reputation beyond reputes_forbes has a reputation beyond reputes_forbes has a reputation beyond reputes_forbes has a reputation beyond reputes_forbes has a reputation beyond reputes_forbes has a reputation beyond reputes_forbes has a reputation beyond reputes_forbes has a reputation beyond repute
Re: Picking up balls or not

One more thing to keep in mind, in 2006 the human players had a constant stream of balls at their disposal; any ball that was scored by the opposing alliiance was in the hands of the human players.

This year it's different. Each human player starts with 20 balls (or 13, depending on whether or not you want your robot to start with any. If you plan on putting balls in your robot anyway, then you will probably pre-load and start with 13). Considering how easy the shots will be right after autonomous starts, some of that ammo will likely be used up to score. If your at one of the outposts, this leaves you very few balls to last you the rest of the game.

If you are at on of the refueling stations, your stash of balls can be increased only if robots herd balls into the corner. If you need to be able to herd balls into a corner in order to get balls loaded into your machine, then why not just pick up off the floor?
  #9   Spotlight this post!  
Unread 12-01-2009, 11:56
Unsung FIRST Hero Woodie Flowers Award
Chris Fultz Chris Fultz is offline
My Other Car is a 500 HP Turbine
FRC #0234 (Cyber Blue)
Team Role: Engineer
 
Join Date: Jan 2002
Rookie Year: 1942
Location: Indianapolis, IN
Posts: 2,837
Chris Fultz has a reputation beyond reputeChris Fultz has a reputation beyond reputeChris Fultz has a reputation beyond reputeChris Fultz has a reputation beyond reputeChris Fultz has a reputation beyond reputeChris Fultz has a reputation beyond reputeChris Fultz has a reputation beyond reputeChris Fultz has a reputation beyond reputeChris Fultz has a reputation beyond reputeChris Fultz has a reputation beyond reputeChris Fultz has a reputation beyond repute
Re: Picking up balls or not

A key difference between 2006 and 2009 is that the scoring pieces were recycled in 2006. score, put the ball back into play.

For 2009, once scored, the balls are out of play. to get them back into play, youneed to be able to quickly herd them to the payload specialists or pick them up into your robot.
__________________
Chris Fultz
Cyber Blue - Team 234
2016 IRI Planning Committee
2016 IndyRAGE Planning Committee
2010 - Woodie Flowers Award - Championship
  #10   Spotlight this post!  
Unread 12-01-2009, 12:00
omgapirate's Avatar
omgapirate omgapirate is offline
Registered User
FRC #1676 (Pascack Pioneers)
Team Role: Electrical
 
Join Date: Jan 2009
Rookie Year: 2009
Location: Hillsdale
Posts: 9
omgapirate is an unknown quantity at this point
Re: Picking up balls or not

Quote:
Originally Posted by s_forbes View Post
One more thing to keep in mind, in 2006 the human players had a constant stream of balls at their disposal; any ball that was scored by the opposing alliiance was in the hands of the human players.

This year it's different. Each human player starts with 20 balls (or 13, depending on whether or not you want your robot to start with any. If you plan on putting balls in your robot anyway, then you will probably pre-load and start with 13). Considering how easy the shots will be right after autonomous starts, some of that ammo will likely be used up to score. If your at one of the outposts, this leaves you very few balls to last you the rest of the game.

If you are at on of the refueling stations, your stash of balls can be increased only if robots herd balls into the corner. If you need to be able to herd balls into a corner in order to get balls loaded into your machine, then why not just pick up off the floor?
That there is definitely a point to consider, especially if your team is considering herding balls to human player.
  #11   Spotlight this post!  
Unread 12-01-2009, 11:53
Electrical1764's Avatar
Electrical1764 Electrical1764 is offline
Cambiano
FRC #1764
Team Role: Electrical
 
Join Date: Dec 2008
Rookie Year: 2007
Location: Liberty
Posts: 8
Electrical1764 is an unknown quantity at this point
Re: Picking up balls or not

I think choosing not to have a collector would be a bad decision. What do you have to loose:

-Weight: no, with this field you want to be as close to the weight limit as possible
-Space: no, if you can't collect balls you will not be able to do much else with the space
-Power consumption: no, again without a collector you will just be driving anyways

...did I miss any thing?

Honestly with this particular competition, you have almost nothing to loose. Go for it!
__________________
If You Can't take the heat, step away from the robot!!!

"You shut your mouth when you talk to me!"
  #12   Spotlight this post!  
Unread 12-01-2009, 12:15
Kevin Sevcik's Avatar
Kevin Sevcik Kevin Sevcik is offline
(Insert witty comment here)
FRC #0057 (The Leopards)
Team Role: Mentor
 
Join Date: Jun 2001
Rookie Year: 1998
Location: Houston, Texas
Posts: 3,673
Kevin Sevcik has a reputation beyond reputeKevin Sevcik has a reputation beyond reputeKevin Sevcik has a reputation beyond reputeKevin Sevcik has a reputation beyond reputeKevin Sevcik has a reputation beyond reputeKevin Sevcik has a reputation beyond reputeKevin Sevcik has a reputation beyond reputeKevin Sevcik has a reputation beyond reputeKevin Sevcik has a reputation beyond reputeKevin Sevcik has a reputation beyond reputeKevin Sevcik has a reputation beyond repute
Send a message via AIM to Kevin Sevcik Send a message via Yahoo to Kevin Sevcik
Re: Picking up balls or not

Whether a ball vacuum "sets apart the men from the boys" isn't really the most important question in whether you should design one into your robot. I thinkit's obvious that a robot with an effective vacuum is more attractive than an identical robot without that vacuum, but that's not the the only question that determines whether you should go with one or not. The benefits of a vacuum are obvious, but you do need to look at the potential costs associated with one.

It's highly unlikely that an effective vacuum would be the only difference between the two robots. A ball vacuum is going to take addtional time, space, weight, and materials on your robot. If adding a vacuum to your robot's design pushes your completion date back a week or more, then you need to consider if your robot would be better off with a vacuum, or an extra week of practice time for the drivers. If it pushes you over weight, or reduces the effectiveness of your other systems, you need to consider that. Most importantly, if it would be a serious technical stretch for your team to complete it successfully, then you should be having serious second thoughts. A non-working vacuum on which you've spent significant time space and weight is a much, much larger detriment to your robot than not having one in the first place.

So, if your team is fully capable of designing, building, and integrating a ball vacuum in the next 3.5 weeks, then yes it would be beneficial. But if it's realistically going to take longer than 4 weeks from now... It's probably not the best idea for your team.
__________________
The difficult we do today; the impossible we do tomorrow. Miracles by appointment only.

Lone Star Regional Troubleshooter
  #13   Spotlight this post!  
Unread 12-01-2009, 12:23
Freeztech's Avatar
Freeztech Freeztech is offline
Registered User
FRC #0401 (Hokie Guard)
Team Role: Electrical
 
Join Date: Jan 2009
Rookie Year: 2009
Location: Blacksburg, Va
Posts: 9
Freeztech is an unknown quantity at this point
Re: Picking up balls or not

I think you guys are missing a point here. if you aim not to pick up and score balls, you become a defender. As a defender you want to do whatever possible to prevent the opposing alliance from scoring. there is two ways of doing this. One you move so fast they can't get balls in your trailer, and two covering your trailer. the latter is illegal as of team update two, so you'd have to put all your effort into speed. which for this game isn't really important, or very easy for that matter. and it would be close to impossible to control.

so it wouldn't be worth the saved space to not have some kind of manipulator, because it doesn't help you out much without one.

this is just my take on the situation though. if you disagree, say how you feel about it
__________________
Dubito, egro Cogito, egro sum.
  #14   Spotlight this post!  
Unread 12-01-2009, 12:27
Jeff Rodriguez Jeff Rodriguez is offline
Too young to be an 'old guy'
FRC #0155 (Technonuts)
Team Role: Teacher
 
Join Date: Jun 2001
Rookie Year: 1999
Location: Newington, CT
Posts: 1,943
Jeff Rodriguez has a reputation beyond reputeJeff Rodriguez has a reputation beyond reputeJeff Rodriguez has a reputation beyond reputeJeff Rodriguez has a reputation beyond reputeJeff Rodriguez has a reputation beyond reputeJeff Rodriguez has a reputation beyond reputeJeff Rodriguez has a reputation beyond reputeJeff Rodriguez has a reputation beyond reputeJeff Rodriguez has a reputation beyond reputeJeff Rodriguez has a reputation beyond reputeJeff Rodriguez has a reputation beyond repute
Send a message via AIM to Jeff Rodriguez Send a message via Yahoo to Jeff Rodriguez
Re: Picking up balls or not

Quote:
Originally Posted by Freeztech View Post
I think you guys are missing a point here. if you aim not to pick up and score balls, you become a defender. As a defender you want to do whatever possible to prevent the opposing alliance from scoring.
If you're a defender, you can try to control the position of yours opponents. Keep them near your payload specialists, keep them away from their empty cells, etc.
It's not just defending your own trailer.
__________________
173, student: 1999-2002
173, mentor: 2005-2010
155, teacher: 2011-
  #15   Spotlight this post!  
Unread 12-01-2009, 12:32
kevin.li.rit's Avatar
kevin.li.rit kevin.li.rit is offline
Imaginary Friend
AKA: Kevin Li
FRC #0596 (SciClones)
Team Role: Student
 
Join Date: Jan 2003
Rookie Year: 2001
Location: Hopkinton, Massachusetts
Posts: 936
kevin.li.rit has a reputation beyond reputekevin.li.rit has a reputation beyond reputekevin.li.rit has a reputation beyond reputekevin.li.rit has a reputation beyond reputekevin.li.rit has a reputation beyond reputekevin.li.rit has a reputation beyond reputekevin.li.rit has a reputation beyond reputekevin.li.rit has a reputation beyond reputekevin.li.rit has a reputation beyond reputekevin.li.rit has a reputation beyond reputekevin.li.rit has a reputation beyond repute
Send a message via Yahoo to kevin.li.rit
Re: Picking up balls or not

I think being able to collect the balls is important. I believe herding will be difficult since we are unable to expand. I find it highly likely your lose balls when herding.

Also things like to end up at the point of lowest potential so there will probably be a decent amount of cells on the floor.
__________________
Kevin Li

596 - Sciclones
1405 - Finney Falcons
2262 - Holliston Panthers
Closed Thread


Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
new balls vs. old used up balls agndoggieboi General Forum 31 22-02-2006 14:11
ANYONE HERE NOT PICKING UP BALLS? archiver 2001 9 24-06-2002 00:08
picking up big balls archiver 2001 3 23-06-2002 22:36
How moving goal while picking up balls Matchew General Forum 14 22-01-2002 22:22


All times are GMT -5. The time now is 05:33.

The Chief Delphi Forums are sponsored by Innovation First International, Inc.


Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Copyright © Chief Delphi