Download IEEE Teacher In-Service Program

IEEE Teacher
In-Service Program
Guayaquil, Ecuador
10 – 11 November 2009
Activities Including Ship 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
Christopher Lester
Coralí Ferrer

3
Ship the Chip
Objectives
 Learn about engineering product planning and design.
 Learn about meeting the needs of society.
 Learn about teamwork and working in groups.
4
Ship the Chip
Students will learn…
 Manufacturing Engineering
 Package design, manufacture and test
 Material properties and selection
 Real world application of mathematics
 Teamwork
5
Ship the Chip
The Challenge
 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
6
Ship the Chip
Procedure
1.
2.
3.
4.
5.
6.
Sketch a design on the worksheet
Construct a model of your package
At a test station, drop the package from a height of 1.5 meters
Open your package and examine the chip
Calculate and record your score
Redesign and reconstruct your package

7.
8.
Extra materials available at testing tables
Label your package with Table # and Team Name
Submit your worksheet and package to the Test Team for overnight
testing
7
Ship the Chip
Materials

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
8
Ship the Chip
Tools and Accessories
 Scissors
 Marking pen
 Pencils/Pens
 Calculator
 Rulers
 Clear Adhesive
 Masking Tape
Tape
9
Ship the Chip
Scoring
Overall Score =
Intactness score
[weight in kg] x [volume in cm3]
Estimate Volume
as Length x Width x Height
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
10
Ship the Chip
Procedimiento
1.
2.
3.
4.
5.
6.
Dibuja el diseño del empaque en la hoja de trabajo
Confecciona tu empaque
En la estación de prueba, suelta el empaque a una altura de 1.5
metros.
Abre el empaque y examina la papa
Calcula y anota tu puntaje
Rediseña tu empaque

7.
8.
Hay materiales adicionales en las mesas de prueba
Etiqueta tu empaque con el número de mesa y el nombre de tu
equipo
Entrega tu hoja de trabajo y empaque al Equipo para pruebas
11
Ship the Chip
Puntuación
Puntaje total =
Puntaje de integridad
[masa en kg] x [volumen en cc]
Estime volumen como
longitud x anchura x altura
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
Actividad 2:
Navegando
(Sail Away)
Naval architecture, boats, sails
and the process of designing
to specifications
Christopher Lester
Coralí Ferrer

13
Sail Away
Objectives
 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.
14
Sail Away
Students will learn…
 Principles of watercraft
engineering
 Design process and
problem solving techniques
 Design to meet specifications
 Teamwork
Various Hull Designs
15
Sail Away
Materials










2 plastic bottles
Paper
Cardboard
Glue, tape
String
Foil
Plastic wrap
Toothpicks
Popsicle sticks
Rubber bands
16
Sail Away
The Challenge
 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
17
Sail Away
Test Procedure
Goal 1: Smallest Sail Area Possible.
Goal 2: Travel Time < 5 seconds.
(without sinking!)
Actividad 3:
Biométrica de la Mano
(Hand Biometrics)
Measurement and biometric
technologies for identification
and security applications
Christopher Lester
Coralí Ferrer

19
Hand Biometrics
Objectives
 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
20
Hand Biometrics
What is a biometric?
 Measurement of a physical characteristic
 Examples include:
 Fingerprints
 DNA
 Retinal pattern
 Hand dimensions
21
Hand Biometrics
Properties of a biometric







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.
22
Hand Biometrics
Why use a biometric?
 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
23
Hand Biometrics
Your Turn
 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
24
Hand Biometrics
Procedure – Part 1
 Work in groups of 4
 Each person gets their hand measured 2 times
 You measure your own right hand
Database Sample
 Another teammate measures
A___
your right hand
B___
Testing Sample C___
 1 “Testing” sample,
A___
D___
1 “Database” sample
 DO NOT SWAP FORMS!
B___
C___
D___
25
Hand Biometrics
Measuring a hand
Medida A:
Desde la punta del
indice hasta el
nudillo
26
Hand Biometrics
Measuring a hand
Medida B:
Ancho del dedo
anular medido a
traves del nudillo
superior
27
Hand Biometrics
Measuring a hand
Medida C:
Ancho de la palma a
traves de los cuatro
nudillos inferiores
28
Hand Biometrics
Measuring a hand
Medida D:
Ancho de la palma
desde el nudillo
medio del pulgar a
traves de
la mano
Medida A:
Desde la punta del
indice hasta el
nudillo
B
A
Medida D:
Ancho de la
palma desde el
nudillo medio del
pulgar a traves de
la mano
Medida B:
Ancho del dedo
anular medido a
traves del nudillo
superior
C
Medida C:
Ancho de la palma
a traves de los
cuatro nudillos
D
30
Hand Biometrics
Procedure – Part 2
 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”
Database Sample
Database Sample
DatabaseA___
Sample
DatabaseA___
Sample
B___
A___
B___
A___C___
B___
C___
B___
D___
C___
D___
C___
D___
D___
31
Hand Biometrics
Example Rule
 Let Sn=An+Bn+Cn+Dn
Database Sample
A___
B___
C___
D___
S1 = 22.1cm
Database Sample
A___
B___
C___
D___
Database Sample
A___
B___
C___
D___
Database Sample
A___
B___
C___
D___
S2 = 25.3cm
S3 = 20.5cm
S4 = 24.9cm
Testing Sample
A___
B___
C___
D___
S = 24.7cm
Error = 0.2cm
MATCH
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”
32
Hand Biometrics
Procedure – Part 3
 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
33
Hand Biometrics
Procedure – Part 3
 Fill in worksheet
Actividad 4:
¡Clasifícalo!
(Sort It Out!)
The engineering behind
industrial sorting
processes
Christopher Lester
Coralí Ferrer

35
Sort It Out
Objectives
 Learn about engineering systems
 Learn about coin manufacturing processes
 Learn about teamwork and working in
groups
36
Sort It Out
Sorting through History
 Miners panning for gold
 Quality control in food and other industries
 Bottle sorting for recycling
37
Sort It Out
Different Types of Sorting
 Image Processing:
Off-the-shelf cameras, frame grabbers,
and image-processing
Lighting
software used to
develop a casino-coin
sorting system
Frame Grabber
Digital I/O &
Network
Connection
Camera &
Optics
PC
platform
Inspection
software
Part Sensor
38
Sort It Out
Different Types of Sorting
 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
Coin in
Center
Transverse line
represents direction of
magnetic field
39
Sort It Out
Why Coin Sorting is Needed
 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
40
Sort It Out
Why Coin Sorting is Needed
 Mixed coins are
 Sorted
 Rolled
 Re-circulated through
banks and businesses
41
Sort It Out
Your Turn

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
42
Sort It Out
Your Turn
How good is it?
 1: “Distance” performance index:
$2 $2
$2
$1 $1 $1
$1
$2
$2 $1
$2 $2
$2
$5 $5
$5 $5
$5
$5
$2
$10
$10
$10
$10
Distance from correct bin
here, Derror = 2 bins
Index 
2
D
 error,i 
i
4  1  2.24
 A coin that does not get sorted has maximum Derror = 3
43
Sort It Out
Your Turn
How good is it?
 2: “Percentage” performance index:
$1 $1 $1
$1
$2 $1
$2 $2
$2
$2
$2
$2 $2
$5 $5
$5 $5
$5
$5
# of coins incorrectly identified
Index 
Total # of coins to sort
$2
$10
$10
$10
$10
2
100 
100  5.7%
35
44
Sort It Out
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

Materials:
 glue, tape, paper or plastic
plates, cardboard, scissors
or hole punch, foil, paper,
cardboard tubes
 one sample of each coin to
be sorted
45
Sort It Out
Your Turn

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?
46
Sort It Out
Conclusion
 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?