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-   -   [FTC]: Autonomous Ideas? (http://www.chiefdelphi.com/forums/showthread.php?t=87459)

normalmutant 19-11-2010 14:16

Re: [FTC]: Autonomous Ideas?
 
That's a pretty good plan. Remember that the scored batons will be counted again at the end of teleop, so that makes 30 points. That would be pretty good right there, and then if you go to the other side, dispense and store the doubler, then dispense all the rest of the batons... Wow. That's 70, with the potential for another 15 if the doubler is scored. Yeah, that's better than most of the higher teleop scores at the scrimmages so far.

alphadog0309 26-11-2010 21:43

Re: [FTC]: Autonomous Ideas?
 
you only get the 10 points for getting over if you end with your robot not touching any part of the ramp, bridge, or mountain. so using that strategy, you would get:

15 points from rolling goal
30 points from dispensing
15 points from balancing
15 points (possible if doubler is scored
______________________
75 points max

so far, by my calculations the most efficient way to score the max number of points would be to bring a goal over with you and try to score at least 3 loads of 5 batons

15 points from preloads
20 points from dispensing 10 batons
27 points from scoring 9 batons dispensed
42 points from scoring double baton
15 points from balancing
_________________________________________
119 points

but then again you only have 40 seconds

normalmutant 27-11-2010 13:15

Re: [FTC]: Autonomous Ideas?
 
Idealistically:
3*5=15 points from scoring preloads - 5 seconds to capture goal and score
10 points from being on other side - 15 seconds to go across and line up
That leaves 20 seconds to dispense and score.
2*15=30 points from dispensing 15 batons
3*15=45 points from scoring all batons dispensed
(2/3)*25-3=15 - probability of finding magnet baton
15+45+15=75 points from scoring doubler baton
_________________________________________
15+10+30+45+15+75=
Maximum possible average autonomous score: 188 points - 40 seconds
Scored batons counted again after teleop - 154 points

Maximum possible average total score: 342 points + balancing

Wow. That's scary. I hope I miscalculated, because that's just ridiculous. Time to create blocking programs for autonomous.

RRLedford 07-12-2010 02:56

Re: [FTC]: Autonomous Ideas?
 
Our team, 3507 RoboTheosis, has this autonomous strategy:
1) We immediately engage and deeply entangle (not possess) the nearest rolling goal into a deep V-notch at front of bot which at full penetration of goal dumps five preloads into the furthest goal tube.
2) We easily navigate with the rolling goal well entangled into our deep V-notch at front, going over the tilt bridge to the other side, then arcing into and tracking along the far wall until we hit the side of the middle dispenser with a hard stopper that aligns our bot's side mounted vertical conveyor well centered on the middle dispenser.
3) We run our vertical conveyor to unload the doubler and as many more regular batons up our conveyor, which then directly dumps them onto a slide that guides them down by gravity feed into the three nearest tubes of the adjacent (in front) rolling goal .
4) We then retreat from our now well loaded rolling goal & head for the tilt bridge to balance
5) On start of teleop mode, we resume filling of the goal with the doubler in it to the max, then we bring the 2nd goal across to the 9" high dispenser and it is also filled directly by conveyor without moving the bot.

We always dispense & transfer directly into a well controlled rolling goal that penetrates 50% into the volume of our bot - without having to move from our position next to the dispenser.

-Dick Ledford

Joachim 07-12-2010 09:37

Re: [FTC]: Autonomous Ideas?
 
Quote:

Originally Posted by RRLedford (Post 984071)
4) We then retreat from our now well loaded rolling goal & head for the tilt bridge to balance

You must be emptying the center dispenser, then. Otherwise, why even go and try to balance?

Each additional doubled baton scored during autonomous equals 14 points by the end of the game (2 for removing from dispenser, plus 3 x 2 for autonomous, plus 3 x 2 at final scoring), while balancing only nets 5 additional points, relative to just staying parked on the far side near the dispenser.

JesseK 07-12-2010 09:53

Re: [FTC]: Autonomous Ideas?
 
Quote:

Originally Posted by RRLedford (Post 984071)

-Dick Ledford

I will grant you that your mode will work for your first couple of qualification matches (and perhaps also against an elim opponent that isn't paying attention). However, there is an extremely simple autonomous counter:

Noob team 10001 creates a "drive straight for 1.5 seconds after a 5 second delay" autonomous. The robots collide. Your team gets only 25 points for position + rolling goal batons and a possible possession penalty if the timing is right. You may win auto mode by 10-15 points, however you've left yourself in the precarious position of having easy defense played on you for the rest of the match.

RRLedford 07-12-2010 11:43

Re: [FTC]: Autonomous Ideas?
 
Quote:

Originally Posted by JesseK (Post 984095)
I will grant you that your mode will work for your first couple of qualification matches (and perhaps also against an elim opponent that isn't paying attention). However, there is an extremely simple autonomous counter:

Noob team 10001 creates a "drive straight for 1.5 seconds after a 5 second delay" autonomous. The robots collide. Your team gets only 25 points for position + rolling goal batons and a possible possession penalty if the timing is right. You may win auto mode by 10-15 points, however you've left yourself in the precarious position of having easy defense played on you for the rest of the match.

Well with a high center that lets us easily traverse the mountain or either tilt bridge. 4-motor drive, the snow plow effect of the goal in front of us and more than one programmed route to the middle dispenser, the defense against up may not be as easy as you make it sound.

Of course we have anticipated this We are adding a 2nd conveyor on opposite side of bot now for this very reason - giving us more route options in autonomous mode. Plus we still have some serious scoring ability once the teleop mode starts, and we still have our goal fully entangled and ready to drive whereever we need to go next.

-Dick Ledford

RRLedford 07-12-2010 11:48

Re: [FTC]: Autonomous Ideas?
 
Quote:

Originally Posted by Joachim (Post 984092)
You must be emptying the center dispenser, then. Otherwise, why even go and try to balance?

Each additional doubled baton scored during autonomous equals 14 points by the end of the game (2 for removing from dispenser, plus 3 x 2 for autonomous, plus 3 x 2 at final scoring), while balancing only nets 5 additional points, relative to just staying parked on the far side near the dispenser.

We don't get all of them into the goal yet, but we do try to empty it, yes.
At least with the goal entangled and 50% penetrated into the space volume of our bot while dispensing, our speed at and odds of getting them into the goal is maximized.

-Dick Ledford

JesseK 07-12-2010 11:48

Re: [FTC]: Autonomous Ideas?
 
The point I was trying to make is that the center dispenser would be blocked. Your only recourse would be to go to another dispenser, which is not only less accurate but also (by definition of possession) causes you to lose the rolling goal.

Joachim 07-12-2010 12:00

Re: [FTC]: Autonomous Ideas?
 
Quote:

Originally Posted by JesseK (Post 984112)
TYour only recourse would be to go to another dispenser, which is not only less accurate but also (by definition of possession) causes you to lose the rolling goal.

The definition of possession of a rolling goal may not work the way you think, based on the official forum postings. Check out the thread on rolling goal possession.

Edit: The one here in this forum, that is: http://www.chiefdelphi.com/forums/sh...ad.php?t=87629

JesseK 07-12-2010 12:55

Re: [FTC]: Autonomous Ideas?
 
The updated ruling, only further affirms my interpreted definition of possessing a rolling goal, so the FTC GDC needs to update the manual with relevant info form the FTC forum postings. The rolling goal is moved forward with the robot and restricted from moving side to side at all. In Finals Match #5, 3539 even got the rolling goal off of a wall (the camera was turned away) well before the endgame.

The counter to the auto mode still stands though. I didn't mean to turn this into a legal issue about possession so much as the practical issue of containing the goal in auto mode. The 3539 driver maintained control without so-called possession because the driver stopped and started every time the robot turned. While an auto-mode could do the same on its own, it's next to impossible to predict what to do in a cluttered environment. Even worse is that the robot is then stuck next to an opponent robot whose driver will surely exploit the cluttered environment immediately (if the drive train is able...).

RRLedford 07-12-2010 22:02

Re: [FTC]: Autonomous Ideas?
 
Quote:

Originally Posted by JesseK (Post 984112)
The point I was trying to make is that the center dispenser would be blocked. Your only recourse would be to go to another dispenser, which is not only less accurate but also (by definition of possession) causes you to lose the rolling goal.

We don't approach the center dispenser from a 90 degree to the wall direction. We approach following the wall and can program select which side we come at it from. This allows us to push any blockers out of the way, because our all four wheel drive can move most blockers. Since our conveyor loads batons from the side of our bot and we always follow the wall to get into position opposite the dispenser, we are not as easy to block out from dispenser access as other bots are.

We can turn quite tight circles without loosing control of the rolling goal. The deep V notch and serious amount of entanglement with the scoring tubes makes it stay firmly in our control while turning tightly, and unless we back up at close to an angle 180 degrees opposite to our initial engagement path, we maintain very good control. It is also nearly impossible to knock it out of our control by any kind of impact coming from any angle.

-Dick Ledford

bpddpb 08-03-2011 21:51

Re: [FTC]: Autonomous Ideas?
 
Sounds like our team (picklejarheads) does exactly what many people are mentioning: dump preloads, get over to the other side, dispense 15 batons. We save the doubler and 4 other batons, and then dump the rest on the ground.

15 points for preloads scored in autonomous
10 points for getting over in autonomous
30 points for dispensing 15 batons in autonomous
12 points for dumping 4 batons in TeleOp
15 points for preloads counting again in TeleOp
27 points for doubling 9 batons in rolling goal
10 points for balancing
-------------------------------
119 points (just for one team)

We have our competition on March 12 and we're still working out the kinks in this idea, but we think it will work really well.

One of our earlier autonomous programs is shown on our youtube channel (picklejarheads)

PhilBot 14-03-2011 17:03

Re: [FTC]: Autonomous Ideas?
 
Hey...

That's a great Auto Mode G-FORCE could do:

Score 5 in rolling goal, cross bridge, Collect 5 from side dispensor and then go back and ballance.

15 + 10 + 15 (40 not counting points again at end of teleop)

Phil.

Quote:

Originally Posted by team F.T.C 4240 (Post 981316)
Well you can score 55 points in auto mode if you score your 5 into the rolling goal (15 in auto mode) then go to the other side (10) then despence all 15 batons onto the floor [(30)you should save the doubler if you go for that despencer] and if you can somehow balance on the bridge then that would make it 60 points in auto mode.

(I tried to say an auto mode that is doable.)
thanks


bpddpb 20-03-2011 08:38

Re: [FTC]: Autonomous Ideas?
 
We also filmed a practice run in which we score the doubler baton:
http://www.youtube.com/watch?v=d25xJ...el_video_title


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