SYSTEM DESIGN REVIEW FRIDAY, JANUARY 15, 2010 RYAN MILLER – ME, PROJECT MANAGER CHRIS OXLEY – EE, LEAD ENGINEER RYAN ENYEART – ME, SYSTEM ENGINEER ALEX MANLEY – EE, SYSTEM ENGINEER P10057 – Monitoring Device for Human Smoking Behavior

Agenda Introduction and Summary Work Breakdown Structure Customer Needs and Technical Specifications P10054 Prototype Design Concept Selection and System Design MSD I Schedule Risk Assessment Q&A

Work Breakdown Structure DIP Measurement (RM/RE) Chest Volume Measurement Cigarette Flow Measurement Airflow Manipulation (RE) Pressure Sensing (CO) Temp Sensing (CO) Packaging (RM) Airflow Path Packaging Electronic System Packaging Signal Processing System Control (CO) Filtering (AM) Amplification (AM) Data Storage (AM)

Needs and Specifications

System Level Design, P10054

Concept Selection – Airflow Path Option Accuracy Cost Complexity Size Ease of Cleaning / Particulate Buildup Ease of Integration Availability SUM Metal Orifice Plate (CReSS) Plastic Orifice Plate Vortex Flow Meter Turbine Flow Meter Calorimetric Flow Meter

Concept Selection – Microcontroller Model Cost Size Low Power Consumption Ease of Implementation Low supply voltage capability (~3V) SUM Arduino Duemilanove w/ Atmel ATmega328P Standalone Atmel ATmega328P TI MSP430 standalone microcontroller PICAXE development kit with Microchip PIC Standalone Microchip PIC controller-+0-+0

Concept Selection – Chest Volume Device Option Cost Accuracy /Sensitivity Ease of Use / Required Training Comfort / Interference Repeatability of Position Ease of Manufacturing/Procurement Custom Parts Needed Electrical Simplicity SUM Strain belt RIP belt0TBD Strain belt x2-TBD RIP belt x2-TBD

Concept Selection – Hand Piece Option Ease of Integration Ease of Manufacturing/Procurement Tool Cost Unit Cost, Units Unit Cost, 100+ Units SUM Rapid Prototyping / 3D Printing Injection molding Blow molding Vacuum forming++--+1

Concept Reduction – Plastics Manufacturing Option Weight RapidPrototyping /3D Printing 3D CNCMachining InjectionMolding Vacuum /PressureForming Tool Cost Unit Cost, 1-10 Units Unit Cost, Units Unit Cost, Units Unit Cost, Units Part fidelity Lead Time, 1-10 Units Lead Time, Units Lead Time, Units Lead Time, Units Sum

Concept Selection – Packaging ItemConcepts Cost Size Weight Impact Resistance Heat Resistance Electrical Resistance Water Resistance Ease of Integration Comfort Ease of Manufacturing/Procurement SUM BoxCOTS project box Custom plastic Custom Sheet metal Internal ProtectionCut foam surrounds Foam inserts Brackets Fasteners Package SealingHigh-density foam in groove Neoprene sleeve O-Ring Rubber seal

Concept Selection – Storage Option Cost Size Power Consumption Data Access Implimentation SUM Micro SD USB Onboard Flash Compact Flash--00+

Concept Selection – Power Supply Option Lifetime Cost Convenience Size Ease of Use Charge Life SUM Disposable Battery Rechargable Battery AC+-0-+0

Concept Selection – Device Activation Option Cost Power Consumption Size Complexity Cigraette Interference Ease of Procurement SUM IR Sensor (1Hz Sample) Mini-Blade Limit Switch Capacitive Proximity Switch Mini Punger Type Limit Switch IR Proximity Switch

Elastic/Velcro Fixture Micro SD Data Storage Micro SD Data Storage Arduino Microcontroller Arduino Microcontroller Rechargeable Battery Rechargeable Battery Amp Plastic Hand Piece Plastic Hand Piece Roller/Lever Limit Switch Temp. Sensor Temp. Sensor Pressure Sensor Pressure Sensor Single Inductive DIP Belt Calibration LED User Feedback LED User Feedback System Level Design, v2.1 Alex Manley Ryan Enyeart Chris Oxley Ryan Miller Plastic Orifice Plate Custom Plastic Packaging with Seals

Project Schedule Revisited

Risk Assessment

Questions?