ieee teacher in-service program
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IEEE Teacher In-Service Program. Guayaquil, Ecuador 10 – 11 November 2009. Activities IncludingShip the Chip Sail Away Hand Biometrics Sort It Out. Actividad 1: Transportando Papitas Fritas (Ship the Chip). Package design and the engineering behind shipping products safely. - PowerPoint PPT PresentationTRANSCRIPT
Activities Including Ship the ChipSail AwayHand BiometricsSort It Out
IEEE TeacherIn-Service ProgramGuayaquil, Ecuador10 – 11 November 2009
Christopher LesterCoralí Ferrer
Actividad 1:Transportando Papitas Fritas(Ship the Chip)Package design and the engineering behind shipping productssafely
Ship the Chip
Learn about engineering product planning and design.
Learn about meeting the needs of society.
Learn about teamwork and working in groups.
3
Objectives
Ship the Chip
Manufacturing Engineering Package design, manufacture and test Material properties and selection
Real world application of mathematics
Teamwork
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Students will learn…
Ship the Chip
Design a package that will securely hold a potato chip and protect it from breaking when dropped
Construct the lightest package to get the highest score. Overall score based on:
Weight Intactness Score Volume
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The Challenge
Ship the Chip
1. Sketch a design on the worksheet2. Construct a model of your package3. At a test station, drop the package from a height of 1.5 meters4. Open your package and examine the chip5. Calculate and record your score6. Redesign and reconstruct your package
Extra materials available at testing tables7. Label your package with Table # and Team Name8. Submit your worksheet and package to the Test Team for overnight
testing
6
Procedure
Ship the Chip
Cardboard – 22 cm x 28 cm 10 Craft sticks 6 Cotton Balls String – 91 cm Plastic wrap – 1 sheet of 22 cm x 28 cm 10 Toothpicks Foil – 1 sheet of 22 cm x 28 cm Paper – 1 sheet of 22 cm x 28 cm 1 Mailing label 1 Potato Chip
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Materials
Ship the Chip
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Tools and Accessories
Ship the Chip
Intactness score : 100: like new, perfect 50 : slightly damaged; cracked but still in one piece 25 : broken in 2 - 5 pieces 5 : broken in 6-20 pieces 1 : broken into more than 20 pieces; crumbled
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Scoring Intactness score
Overall Score = [weight in kg] x [volume in cm3]
Estimate Volume as Length x Width x Height
Ship the Chip
1. Dibuja el diseño del empaque en la hoja de trabajo2. Confecciona tu empaque3. En la estación de prueba, suelta el empaque a una altura de 1.5
metros.4. Abre el empaque y examina la papa 5. Calcula y anota tu puntaje6. Rediseña tu empaque
Hay materiales adicionales en las mesas de prueba7. Etiqueta tu empaque con el número de mesa y el nombre de tu
equipo8. Entrega tu hoja de trabajo y empaque al Equipo para pruebas
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Procedimiento
Ship the Chip
Puntaje de integridad: 100: como nueva, perfecta 50 : levemente dañada; trizada pero aún entera 25 : rota en 2 a 5 trozos 5 : rota en 6 a 20 trozos 1 : rota en más de 20 trozos; en migajas
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Puntuación Puntaje de integridad
Puntaje total = [masa en kg] x [volumen en cc]
Estime volumen como longitud x anchura x altura
Christopher LesterCoralí Ferrer
Actividad 2:Navegando(Sail Away)Naval architecture, boats, sails and the process of designingto specifications
Sail Away
Learn about marine engineering and sailing principles.
Learn about engineering product planning and design.
Learn about meeting the needs of society.
Learn about teamwork and working in groups.
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Objectives
Sail Away
Principles of watercraft engineering
Design process and problem solving techniques
Design to meet specifications
Teamwork
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Students will learn…
Various Hull Designs
Sail Away
2 plastic bottles Paper Cardboard Glue, tape String Foil Plastic wrap Toothpicks Popsicle sticks Rubber bands
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Materials
Sail Away
Design a sailboat that…
Has the smallest sail area possible,but still
Travels the length of the trough in less than 5 seconds, and
Support a payload of 200g
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The Challenge
Sail Away
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Test Procedure
Goal 1: Smallest Sail Area Possible.
Goal 2: Travel Time < 5 seconds. (without sinking!)
Christopher LesterCoralí Ferrer
Actividad 3:Biométrica de la Mano(Hand Biometrics)Measurement and biometric technologies for identificationand security applications
Hand Biometrics
Learn about biometrics technology
Learn about engineering product planning and design
Learn about meeting the needs of society
Learn about teamwork and working in groups
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Objectives
Hand Biometrics
Measurement of a physical characteristic Examples include:
Fingerprints DNA Retinal pattern Hand dimensions
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What is a biometric?
Hand Biometrics
Universality – each person should have the characteristic. Uniqueness – how well a biometric separates individuals from others. Permanence – how well a biometric resists aging, variance over time. Collectability – ease of acquisition, measurement. Performance – accuracy, speed, and robustness of technology used. Acceptability – degree of approval of a technology. Circumvention – ease of use of a substitute.
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Properties of a biometric
Hand Biometrics
Biometrics are used to match an unknown sample to a database of known samples Criminal investigations
Biometrics are used to authenticate identities Fingerprint computer login
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Why use a biometric?
Hand Biometrics
Create a database of 4 known samples from measurements of your hands
Develop a rule or algorithm by which you can: …accpect an unknown sample and match it to an
entry in your database; or …reject the unknown sample as not appearing in
the database at all
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Your Turn
Hand Biometrics
Work in groups of 4 Each person gets their hand measured 2 times
You measure your own right hand Another teammate measures
your right hand 1 “Testing” sample,
1 “Database” sample DO NOT SWAP FORMS!
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Procedure – Part 1
Testing SampleA___B___C___D___
Testing SampleA___B___C___D___
Database SampleA___B___C___D___
Database SampleA___B___C___D___
Hand Biometrics
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Measuring a hand
Medida A:Desde la punta del indice hasta el nudillo
Hand Biometrics
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Measuring a hand
Medida B:Ancho del dedo anular medido a traves del nudillo superior
Hand Biometrics
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Measuring a hand
Medida C:Ancho de la palma a traves de los cuatro nudillos inferiores
Hand Biometrics
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Measuring a hand
Medida D:Ancho de la palma desde el nudillo medio del pulgar a traves de la mano
A
B
C
D
Medida A:Desde la punta del indice hasta el nudillo
Medida B:Ancho del dedo
anular medido a traves del nudillo
superior
Medida C:Ancho de la palma
a traves de los cuatro nudillos
Medida D:Ancho de la palma desde el nudillo medio del pulgar a traves de la mano
Hand Biometrics
Set aside all 4 white “Testing” forms Looking at just the 4 pink Database samples,
develop a mathematical and/or logical rule that can be used to match an unknown sample to an entry in the “Database”
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Procedure – Part 2
Database SampleA___B___C___D___
Database SampleA___B___C___D___
Database SampleA___B___C___D___
Database SampleA___B___C___D___
Database SampleA___B___C___D___
Database SampleA___B___C___D___
Database SampleA___B___C___D___
Database SampleA___B___C___D___
Hand Biometrics
Let Sn=An+Bn+Cn+Dn
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Example Rule
Database SampleA___B___C___D___
Database SampleA___B___C___D___
Database SampleA___B___C___D___
Database SampleA___B___C___D___
Database SampleA___B___C___D___
Database SampleA___B___C___D___
Database SampleA___B___C___D___
Database SampleA___B___C___D___
S3 = 20.5cm
S4 = 24.9cm
S2 = 25.3cm
S1 = 22.1cmTesting Sample
A___B___C___D___
Testing SampleA___B___C___D___
S = 24.7cm
Compute Sn for each entry in “Database”
Compute S for unknown test sample
Choose Database sample with least error < 0.5 cm,Else state “No Match”
Error = 0.2cmMATCH
Hand Biometrics
Combine “Testing” samples for entire table (8 samples)
Mix and shuffle “Testing” samples Each group picks 2 random Testing samples For each sample, use your RULE to determine if
there is a match in your “Database” and, if yes, which entry matches
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Procedure – Part 3
Hand Biometrics
Fill in worksheet
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Procedure – Part 3
Christopher LesterCoralí Ferrer
Actividad 4:¡Clasifícalo!(Sort It Out!)The engineering behind industrial sortingprocesses
Sort It Out
Learn about engineering systems
Learn about coin manufacturing processes
Learn about teamwork and working in groups
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Objectives
Sort It Out
Miners panning for gold
Quality control in food and other industries
Bottle sorting for recycling
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Sorting through History
Sort It Out
Image Processing:Off-the-shelf cameras, frame grabbers, and image-processing software used todevelop a casino-coin sorting system
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Different Types of Sorting
Lighting
Digital I/O & Network
ConnectionFrame Grabber
Part Sensor
Camera &
PC platform
Inspection software
Optics
Sort It Out
Material Properties of Coin: Current run through left coil,
creates magnetic field. Magnetic field passes through
and is attenuated by coin Right coil receives magnetic
field, creates measurable current with different value depending on the coin
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Different Types of Sorting
Coin in Center
Transverse line represents direction of magnetic field
Sort It Out
Mixed coins come from a variety of sources and must be sorted out before they can be redistributed Coins from vending machines Coins from parking meters
Also helpful to identify fake or foreign coins
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Why Coin Sorting is Needed
Sort It Out
Mixed coins are Sorted Rolled Re-circulated through
banks and businesses
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Why Coin Sorting is Needed
Sort It Out
Groups of 2
You are a team of engineers hired by a bank to develop a machine to sort coins that are brought in by customers.
Must mechanically sort mixed coins into separate containers: 10 x $1 10 x $2 10 x $5 5 x $10
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Your Turn
Sort It Out
How good is it?
1: “Distance” performance index:
A coin that does not get sorted has maximum Derror = 3
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Your Turn
$1$1 $2$2 $5$5 $10$10
$1$1
$1 $1$2
$2$2$2$2$2
$5$5$5$5 $5
Distance from correct binhere, Derror = 2 bins
$10$10 $10
$2
Index Derror,i2
i
4 1 2.24
$2
Sort It Out
How good is it?
2: “Percentage” performance index:
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Your Turn
$1$1 $2$2 $5$5 $10$10
$1$1
$1 $1$2
$2$2$2$2$2
$5$5$5$5 $5 $10
$10 $10$2
$2
Index # of coins incorrectly identified
Total # of coins to sort100
2
35100 5.7%
Sort It Out
Materials: glue, tape, paper or plastic
plates, cardboard, scissors or hole punch, foil, paper, cardboard tubes
one sample of each coin to be sorted
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Your Turn
Design (draw) a mechanical sorter that can separate the $1, $2, $5, and $10 coins
Input: either Parallel – all coins are inserted at
start of your sorter together; or Serial – coins are inserted at start
of your sorter one at a time
Output: Each denomination of coin in its own physical container
Sort It Out
At your table, choose 2 groups to build a parallel sorter; the other 2 groups will build a serial sorter
You will have 45 seconds to allow your sorter to operate
Predict the value of the two performance indices for your design
Construct your sorting mechanism
Test it!
Can you do better?
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Your Turn
Sort It Out
Did your sorting mechanism work? If not, why did it fail?
What were your performance index values?
What levels of error would be acceptable in: Medical Equipment manufacturing? Nail manufacturing?
What redesigns were necessary when you went to construct your design? Why?
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Conclusion