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 i 2 D error ,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 Index $2 $2 $2 $2 $2 $2 $2 # of coins incorrectly identified Total # of coins to sort $5 $5 $5 $5 $5 $5 100 $2 $10 $10 $10 $10 2 35 100 5 .7 % 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?