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P10057 – Cigarette Smoking Machine D

P10057 – Cigarette Smoking Machine D. Friday, December 18, 2009 Ryan Miller – Me, project manager Chris Oxley – ee, lead engineer Ryan Enyeart – me, system engineer Alex Manley – ee, system engineer. Agenda. Overview Customer Needs House of Quality System Design Project Planning

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P10057 – Cigarette Smoking Machine D

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  1. P10057 – Cigarette Smoking Machine D Friday, December 18, 2009 Ryan Miller – Me, project manager Chris Oxley – ee, lead engineer Ryan Enyeart – me, system engineer Alex Manley – ee, system engineer

  2. Agenda Overview Customer Needs House of Quality System Design Project Planning Risk Assessment Knowns and Unknowns Q&A

  3. Overview Follow-on project to P10054 – Monitoring Device for Human Smoking Behavior Acquisition of real-world DIP data Redesign of P10054 prototype for manufacturing Re-engineering of prototype to meet unmet needs and goals

  4. Customer Needs – Ranked • Effective Solution • Measures DIP flow • Measures flow through cigarette • Complete data recording • Data Storage • Easy data offloading • Ease of data access • Ergonomics and Usability • No physical hazards • Must not alter behavior • Portable • Comfortable and ergonomically correct • Minimal required user training • Withstands daily use conditions • Long runtime • Indoor/outdoor use • Easy to charge

  5. Customer Needs – Ranked • Manufacturing • Uses minimally expensive processes • Producible in large quantities • Minimal production waste • Maximum use of COTS • Documentation • Complete CAD package (electrical/mechanical) • Test procedures for system & major components • Clinical user guide • End-user guide • Prototype Assessment • Benchmarking • Focus Group Data

  6. House of Quality

  7. System Level Design Automated On/Off Sensor User Input User Feedback Signal Proc. Handpiece Temp. Sensor Pressure Sensor Micro SD Data Storage Microcontroller Airflow Path Amp Battery Strain Gauge Signal Proc. DIP Belt Packaging Alex Manley Ryan Enyeart Calibration Chris Oxley Ryan Miller

  8. System Design Alternatives

  9. Project Planning, Weeks 1-4

  10. Project Planning, Weeks 5-8

  11. Project Planning, Weeks 9-11

  12. Risk Assessment https://edge.rit.edu/content/P10057/public/Risk_Assessment.xls

  13. Knowns and Unknowns • Known: • Deliverables schedule • Rough customer needs based on own experience • Prototype form factor • Data types and ranges • Current P10054 challenges • Faculty resources • Refinement tasks • Secondary customer contact info • Unknown: • Labview • Plastics modeling/manufacturing • Final prototype status at end of winter quarter (from P10054) • Realistic customer needs • Realistic timeline for some schedule events • Sources for some parts (chest belt) • Realistic smoking behavior • Method for converting deltaP into volume flow rate • Power usage target

  14. Questions?

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