P10057: Delivery and Scale-Up of a Monitoring Device for Human Smoking Behavior Ryan Miller – Project Manager Chris Oxley – Lead Engineer Ryan Enyeart – Mechanical Systems Engineer Alex Manley – Electrical Systems Engineer

Project Description Device to capture real-life human smoking behavior Measures flow rate through cigarette and tidal volume High-level customer needs/engineering specs:  Must not alter smoking behavior  User comfort: 90% of surveyed users or higher  Weight of belt pack: 3 – 8 oz.  Dimensions of belt pack: 2 – 8 cubic inches  Measures flow rate through cigarette as a function of time  Measurable flow rate range: 0 – 94 mL/s  Measures inhalation/exhalation tidal volume as a function of time  Measurable lung volume: 0.2 – 6 L  Cost comparable to CReSS or other commercially available devices  Ideal average prototype cost: $800

Design Concept Chest and Stomach Belts Handpiece Belt Pack

System Architecture Link

Technical Risk Assessment Risk: Unable to convert prototype to mass production at a cost comparable to CReSS device ◦Use commercial off-the-shelf components ◦Design for common mass-production techniques Risk: Device does not satisfy customer ergonomics requirements ◦Human factors survey ◦Design to an accommodating size and weight

Current State of Design Meets all customer needs except: ◦Belt pack size: cubic inches ◦Pressure sensor error: >5% ◦User guides: Instructional video Meets project budget ◦Acceptable device unit cost: $800 ◦Actual device unit cost: $ On schedule except for testing and documentation

MSD II Project Schedule Milestones March 12: Handheld design confirmed March 19: ◦Pressure Sensor Selection ◦One vs. two belt decision ◦Wired handpiece April 13: Human factors survey May 1: ImagineRIT presentation May 5: Final handheld completion May 11: PCB completion May 12: Belt pack completion May 13: Working prototype May 21: Graduation

Opportunities/Suggestions for Future Work Metal orifice plate design Belt boards integrated into PCB Sleep mode ADC in handpiece rather than belt pack Survey/testing with prototype ◦Subject’s use of flowpath Data logger/real-time clock integration Belt pack refinement