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PRELIMINARY DESIGN REVIEW P09321 – AUTOMATED MEDICINE DISPENSER DATE (01-16-2009) ‏

PRELIMINARY DESIGN REVIEW P09321 – AUTOMATED MEDICINE DISPENSER DATE (01-16-2009) ‏. Michael Boquard (CE) ‏ Felix Feliz (ME) ‏ Rebecca Jaiven (EE) (Lead Engineer) ‏ Matthew Jones (ME) ‏ Shuaib Mansoori (EE) ‏ Justin Zagorsk (IE) (Team Leader) ‏. OVERVIEW. Intro Roles & Responsibilities

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PRELIMINARY DESIGN REVIEW P09321 – AUTOMATED MEDICINE DISPENSER DATE (01-16-2009) ‏

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  1. PRELIMINARY DESIGN REVIEWP09321 – AUTOMATED MEDICINE DISPENSERDATE (01-16-2009)‏ Michael Boquard (CE)‏ Felix Feliz (ME)‏ Rebecca Jaiven (EE) (Lead Engineer)‏ Matthew Jones (ME)‏ Shuaib Mansoori (EE)‏ Justin Zagorsk (IE) (Team Leader)‏

  2. OVERVIEW • Intro • Roles & Responsibilities • Customer Requirements • HOQ • Engineering Specifications • Summary of Concept Selection • Summary of Selected Concepts • Electrical System Summary • Software System Summary • Schedules • Risks & Issues

  3. INTRO – PROJECT DESCRIPTION • Produce a robust prototype that dispenses medication on a time-bases to patients in a secure and accountable environment. • Allow to dispense a week’s supply of up to 6 different pills for two patients accessed twice daily. • Reliable and compact electro-mechanical dispensing system that can be controlled by a common laptop.

  4. INTRO - SCOPE • Start with a working prototype. • ~5 years outdated • Modify to meet customer needs/specs. • Deliver functioning prototype by end of MSDII.

  5. INTRO – Target End User • One who takes medication on a regular basis, is technological capable*, and desires to have their medication in a safe and secure environment. • * a technology capable person is familiar with basic computer functions and/or has the willingness to learn.

  6. ROLES & RESPONSIBILITIES • Justin Zagorski (IE) Team Leader • Rebecca Jaiven (EE) Lead Engineer • Michael Boquard (CE)‏ • Felix Feliz (ME)‏ • Matthew Jones (ME)‏ • Shuiab Mansoori (EE) • D. Phillips (EE)‏ • E. Hanzlik (ME)‏ • John Veenstra GUI & Interfacing Design & Manufacturing Electrical Components & Circuitry Faculty Guide Faculty Advisor Sponsor

  7. Critical Customer Needs and Engineering Specifications Customer Needs Laptop Interface 360° Security™ Ensure accountability for delivery and distribution of medication. Properly and Reliably Dispense Medication Dispenses medication for two people, twice a day for a week, for six different medications each distribution. Portable Engineering Specs Biometric Access CN of security/laptop Software properly access appropriate location and no mechanical failures CN properly and reliably dispenses medicine 4 levels of user access CN security Size/weight limits CN portability

  8. CUSTOMER REQUIREMENTS

  9. SPECIFICATIONS

  10. Hardware Concept Selection Criteria Size Security – visibility of medication Scalability Simplicity Reliability Ease of Use – customer interface Return Area Packaging – external housing unit

  11. Top 3 DesignsSee full PUGH in Appendix A Scale: 0 is neutral 1 is positive -1 is negative

  12. Selected Design First Iteration Collapsible Legs Empty Return Hinges Collapsible Ramp

  13. Second Iteration Unfolded Collapsed *Collapsed dimensions: 11”x11”x6” Front views Rear views

  14. Existing Electrical SystemSchematic in Appendix B

  15. Proposed Electrical System

  16. System Level Changes - Electrical

  17. Firmware Data Flow

  18. Levels of User Access • User 1 – Patient • User 2 – Pharmacist • User 3 – Delivery • User 4 – Administration The prescription is changed by the Doctor who informs that pharmacist who changes the pills placed into the cartridge.

  19. User 1

  20. Patient Process

  21. User 2

  22. Refill Process

  23. User 3 change *New to Delivery

  24. User 4

  25. Admin

  26. Firmware Finite State Machine (FSM)

  27. Preliminary System Integration • Mechanical- Electrical • Electrical will mount on prototype on designated space • Electrical will power Nitinol drivers • Electrical-Software • Software controls TTL signal that sends signal high

  28. Engineering Assumptions • Aluminum 1100 O • ν= .33 • E=10.1 Msi • T=.09 • P= 7.5 lb • Yield Strength= 20ksi Loading case 1: 2- 1” hinges applied 2in from each end Loading case 2: 1 3/8” wide welded rail holding a total of 1.94 lbs

  29. Engineering Analysis • Leg analysis • Maximum stress: 455.9psi • Maximum deflection: .00185in in z-direction • Rail analysis • Maximum stress: 30.632psi • Maximum deflection: .322X10-5in

  30. Engineering Analysis Conclusions • The stresses and deflections incurred for both the leg and rail are well below the maximum allowed tolerances for the individual parts. • This indicates that the thicknesses assigned and the materials selected fit well with our design. And confirms that the mechanical design is sound.

  31. MSDI Timeline

  32. MSDII Timeline *need to create another critical path Appendix C is Microsoft Project

  33. RISKS 5 – Life Threatening 4 - Nonfunctional Prototype 3 – Fixable Glitch 2- Outside of Design Control 1 – Not critical to functionality

  34. ISSUES (Most important to least)‏ Time Scope Creep Availability of machine shop/electrical components/Nitinol fibers & latches OS updates Team schedules conflicting Available computers/people for testing Ramp packaging space (hinge thickness)‏ Cartridge loaded and delivered in different time zones

  35. BACK UP SLIDES (Appendix, extra info, etc..)

  36. Appendix • Appendix A – PUGH Chart Link • Appendix B – ANSYS • Appendix C - Microsoft Project Link

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