lecture 9 – big project theme - singhosesinghose.marc.gatech.edu/courses/me2110...

ME 2110: Creative Decisions and DesignProf J.Rhett Mayor

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Lecture 9 – Big Project Theme

Wildfire Search and Rescue AGV


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Primary Task Objectives

1. Deploy flame retardants2. Guide “smoke jumper”

teams to landing zones3. Rescue trapped hikers and

transport to safety zoneFrom: Alaska Fire services, http://fire.ak.blm.gov/afs/images/blm_jumper.jpg

From: Guarding Newspaper, http://static.guim.co.uk/sys-images/Guardian/Pix/pictures/2008/04/28/fire276.jpg


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Secondary Task Elements

• Avoid advancing flame fronts to prevent damage to AGV and limit additional fire initiation sites

• AGV must coordinate with aerial water bombers to deploy final firebreak

• AGV must return to safety zone at the completion of the mission

//www.cbc.ca/canada/story/2009/02/09/f-wildfires.html#ixzz104q0OYP0

http://media.canada.com/133a26b3-7939-4ba4-b93e-0c570ecf1751/VKA0731-thetis_FIRE_2.jpg

Wildfire S&R AGV Proving Grounds


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Port

Container Ship

Aerial fire-breaks in blue zone and yellow zone removed for clarity

Aerial fire break

Yellow starting zone

Rotating Rescue Zone

AGV Operation Zone


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Flame Retardant canister (1 of 2)

Trapped Hikers

Smoke jumpers Landing zone 1

Smoke jumpers Landing zone 2


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Rotating Flame front

Aerial Firebreak –holding pattern


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Rotating Flame front

Aerial Firebreak –Deployed position


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Task Element Scoring

Scoring Method Point ValueRescue the trapped hikers 60 pts/ hiker

Guide smoke jumpers safely to LZ-1 15 pts/ team

Guide smoke jumpers safely to LZ-2 40 pts/ team

Deploy flame retardants in back path 25 pts/ canister

Penalties

Failure to return safely behind

firebreak-40 pts

Additional fires in zone (due to

interaction with flame front)-5 pts/ fire site

Approximate Dimensions


10


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Key Info and Competition Details

• Read handout for details and complete rules• Your team will be given electronics/actuators kit• Total budget for other supplies is $100• Machines must start in a 12x24x18” volume• Rulings by Faculty are final and binding


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Key Events & Dates

• Individual Competition (week of October 12)

• Preliminary Round (week of October 26)

• Qualifying Round (week of November 2)

• Big Contest - Friday, November 12, 2010• Design Review, 5 - 6 PM

• Wildfire Search & Rescue 6:15PM

• Final Written & Oral Reports (week of November 16)


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Preliminary Competition

• The AGV must complete following objectives:– Rescue Hikers, – Guide smoke jumpers to LZ

• No additional fire site penalties

• Computer controlled with automatic start• 5 minutes to run your machine three times• 1% of course grade• Your score will be ranked only against teams

in your studio section.


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Qualifying Competition

• Your team’s machine will compete against other machines in all aspects of the design challenge.

• You will compete several times during the studio period against a variety of opponents.

• The results from this qualifying round will be used to seed the brackets for the final tournament.


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Design Competition – Friday 11/12

• Your machine will compete in two events:

• a) Design Review:– Starting at 5:00pm a panel of judges will perform a design

review of your machine and Raider Design. You will need to describe your machine quickly and clearly to the judges that visit your machine. The judges will score your machine on aesthetics, ingenuity, and presentation.

• b) Wildfire Search & Rescue AGV:– Your machine will compete against other machines to

achieve the best score. The top two scoring machines in each contest will be declared winners.

– The contest will be a double elimination tournament for the initial rounds, and then single elimination for the later rounds

© GIT 16

ME2110 Design Competition

• The main design project is a 9 week, constrained resource (<$100) team engineering design project

• Design, build and test an autonomous device that must perform multiple tasks of varying complexity

• Competition tasks are constructed to create an under-constrained design problem based on a main theme

• Cargo Crisis: Pirates of the Horn• Oil Spill Crisis

• Repeatability is critical: ~10 consecutive wins required to win the competition

Previous Machine

Contest Grade Scoring

Based on number of wins

•Top team(s) = 10 pts.

…Linear interpolation

•Teams with 0 wins = 1 pt.

• 5% of Course Grade is from Design Review• 15% of Course Grade is from Performance

Grading Summary

Maximum Points Breakdown

2 Individual Competition

1 Preliminary Competition

2 Qualifying Competition

10 Big Contest


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Important Things To Do

• Read Handout Carefully

• Read it Again

• Get Started Early

• Learn From Others

• Don’t Be the Weak Link

• Work consistently

•Have Fun & Win the competition!


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Hint…

Franciscan friar William of Ockham

OCKHAM’S RAZOR –entia non sunt multiplicanda praeter necessitatem

Translation:entities should not be multiplied beyond necessity

OR:

All things being equal, the simplest solution tends to be the best one

Good guidance for DFM efforts

Simplest design/process is usually the most producible

lecture 9 – big project theme - singhosesinghose.marc.gatech.edu/courses/me2110...

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