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P10057: Delivery and Scale-Up of a Monitoring Device for Human Smoking Behavior

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. Device to capture real-life human smoking behavior

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P10057: Delivery and Scale-Up of a Monitoring Device for Human Smoking Behavior

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  1. 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

  2. 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 Project Description

  3. Chest and Stomach Belts Belt Pack Handpiece Design Concept

  4. Link System Architecture

  5. 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 Technical Risk Assessment

  6. Meets all customer needs except: • Belt pack size: 17.36 cubic inches • Pressure sensor error: >5% • User guides: Instructional video • Meets project budget • Acceptable device unit cost: $800 • Actual device unit cost: $625.29 • On schedule except for testing and documentation Current State of Design

  7. 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 MSD II Project Schedule Milestones

  8. 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 Opportunities/Suggestions for Future Work

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