PRELIMINARY DESIGN REVIEWP09321 – AUTOMATED MEDICINE DISPENSERDate 01-16-2009Time 11-12:30Room 78-2230

Michael Boquard (CE)

Felix Feliz (ME)

Rebecca Jaiven (EE) (Lead Engineer)

Matthew Jones (ME)

Shuaib Mansoori (EE)

Justin Zagorski (IE) (Team Leader)

1

OVERVIEW1. Intro

1. Project Description2. Roles and Responsibilities

2. Customer Requirements & Engineering Specifications

3. Summary of Concept Selection4. Electrical System Summary5. Software System Summary6. Preliminary System Integration7. Risks & Issues8. Schedule 2

INTRO – PROJECT DESCRIPTION

o Produce a robust prototype that dispenses medication on a time-based schedule to patients in a secure and accountable environment.

o Allow to dispense a week’s supply of up to 6 different pills for two patients accessed twice daily.

o Reliable and compact electro-mechanical dispensing system that can be controlled by a common laptop.

3

INTRO – PROJECT DESCRIPTION

4

INTRO - SCOPE

Start with a working prototype.~5 years outdated

Modify to meet customer needs and specifications.

Deliver functioning prototype by end of MSDII.

5

INTRO – Target End User

One who takes medication on a regular basis, is technologically 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 LeaderRebecca Jaiven (EE) Lead EngineerMichael 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

Sponsor7

OVERVIEW1. Intro

1. Project Description2. Roles and Responsibilities

2. Customer Requirements & Engineering Specifications

3. Summary of Concept Selection4. Electrical System Summary5. Software System Summary6. Preliminary System Integration7. Risks & Issues8. Schedule 8

Critical Customer Needs and Engineering Specifications Customer Needs1. Laptop Interface

2. 360° Security™

a. Ensure accountability for delivery and distribution of medication.

3. Properly and Reliably Dispense Medicationa. Dispenses medication for

two people, twice a day for a week, for six different medications each distribution.

4. Portable

Engineering Specs1. Biometric Access

a. CN of security/laptop

2. Software properly access appropriate location and no mechanical failures a. CN properly and reliably

dispenses medicine

3. Different levels of user access a. CN security

4. Size/weight limits a. CN portability

9

Appendix B: House of Quality

Pareto Chart - Specifications

10

OVERVIEW1. Intro

1. Project Description2. Roles and Responsibilities

2. Customer Requirements & Engineering Specifications

3. Summary of Concept Selection4. Electrical System Summary5. Software System Summary6. Preliminary System Integration7. Risks & Issues8. Schedule 11

Top 3 Designs

12

Datum 1 2 3

 

Size 0 1 1 1

Security 0 1 1 1

Scalability 0 1 1 1

Simplicity 0 1 1 1

Reliability 0 1 1 1Ease of Use 0 1 1 1Return Area 0 1 1 1

Packaging 0 -1 0 1

+ +0 +7 +7 +8

- -0 -1 -0 -0

0 6 7 8

Scale:0 is neutral1 is positive-1 is negative

Appendix C: Full PUGH Chart

Selected Design – Concept

Empty Return

Collapsible Legs

HingesCollapsible Ramp

Features Specification met

Collapsible Legs Mobility

Collapsible Ramp Mobility

Return Slot Passive Security

Sheet aluminum body

Light weight

Small Footprint Mobility

13

Selected Design - Modeling

14

UnfoldedCollapsed

*Collapsed dimensions: 11”x11”x6”

Front views

Rear views

UnfoldedCollapsed

*Collapsed dimensions: 11”x11”x6”

Front views

Rear views

OVERVIEW1. Intro

1. Project Description2. Roles and Responsibilities

2. Customer Requirements & Engineering Specifications

3. Summary of Concept Selection4. Electrical System Summary5. Software System Summary6. Preliminary System Integration7. Risks & Issues8. Schedule 15

Existing Electrical SystemSchematic in Appendix B

16

Appendix D: Schematics

Proposed Electrical System

17

System Level Changes - Electrical

18

Existing Change Reason

3.3V Regulator RemoveNot necessary to power components

Mux/ Demux Remove Replace with FPGASystem ROM Update Old TechnologyNon-standard connector Change To USB 2.0 for standardizationMemory Card Connector Remove Replace with LaptopMicrocontroller Remove Replace with LaptopFPGA Update Old Technology

OVERVIEW1. Intro

1. Project Description2. Roles and Responsibilities

2. Customer Requirements & Engineering Specifications

3. Summary of Concept Selection4. Electrical System Summary5. Software System Summary6. Preliminary System Integration7. Risks & Issues8. Schedule 19

Firmware Data Flow

20

Firmware Data Flow

21

Firmware Finite State Machine (FSM)

22

Levels of User Access

23

o User 1 – Patiento User 2 – Refillero User 3 – Deliveryo User 4 – Administration

The prescription is changed by the Doctor who informs that pharmacist who changes the pills placed into the cartridge.

User 1

User 2

Appendix G: Detailed Refill Process

User 3 Delivery

User 4

OVERVIEW1. Intro

1. Project Description2. Roles and Responsibilities

2. Customer Requirements & Engineering Specifications

3. Summary of Concept Selection4. Electrical System Summary5. Software System Summary6. Preliminary System Integration7. Risks & Issues8. Schedule 28

Preliminary System Integration

o Electrical-Software• Software controls TTL signal that sends signal

higho Mechanical- Electrical

• Electrical will mount on prototype on designated space

• Electrical will power Nitinol drivers

29

Preliminary System Integration

30

OVERVIEW1. Intro

1. Project Description2. Roles and Responsibilities

2. Customer Requirements & Engineering Specifications

3. Summary of Concept Selection4. Electrical System Summary5. Software System Summary6. Preliminary System Integration7. Risks & Issues8. Schedule 31

RISKS

5 – Life Threatening4 - Nonfunctional Prototype3 – Fixable Glitch2- Outside of Design Control1 – Not critical to functionality

Risk Level How to Mitigate

False positive/negative on biometric scanner 5 Use best possible scanner within budget

Incorrect medication fill 5 Individual held accountable - datalogging, pick list

Dispensing from incorrect location 5 Double-check programming, circuitry

Hardware compatibility (USB drivers) 4 Test on multiple computers, make sure drivers are up to date

Unauthorized access 4 Fingerprint access, any access is logged

Power Outage 4 Advise customer to supply UPS

Dropping / Impact 3 Ensure case design is robust

Biometric scanner malfunction 3 Users will have a backup PIN

OS compatibility 3 Test on multiple computers, include necessary software

Firmware patches 3 Ensure updates can be made easily using OS

Incomplete or Incorrect Documentation 3 Evaluate and organize

Mechanical Jam 3 Careful selection of hinges/validation testing

User forgets to take medication 2 Alarm/indicator on unit

Pill breakage 2 Pad cartridge caps

Return slot full 2 Properly sized return area

Water damage 1 Alert users with warning label

Excessive Weight 1 Re-evaluate Concept Selection32

ISSUES (Most important to least)

1. Time2. Scope Creep3. Availability of machine shop/electrical

components/Nitinol fibers & latches4. OS updates5. Team schedules conflicting6. Available computers/people for testing7. Ramp packaging space (hinge thickness)8. Cartridge loaded and delivered in different

time zones33

OVERVIEW1. Intro

1. Project Description2. Roles and Responsibilities

2. Customer Requirements & Engineering Specifications

3. Summary of Concept Selection4. Electrical System Summary5. Software System Summary6. Preliminary System Integration7. Risks & Issues8. Schedule 34

MSDI Timeline

35

Appendix H: MS Project Links

MSDII Timeline

36

BACK UP SLIDES(Appendix, extra info, etc..) 37

Appendix Appendix A – One Page Project Summary https://edge.rit.edu/content/P09321/public/ProjectSummary.doc

Appendix B – House of Quality https://edge.rit.edu/content/P09321/public/QFD.xls

Appendix C – PUGH Chart https://edge.rit.edu/content/P09321/public/Week5/PUGHv1_2.xls

Appendix D – Schematics https://edge.rit.edu/content/P09321/public/PJSolutionsDocuments

38

Appendix

Appendix E – FEA Ansys Analysis https://edge.rit.edu/content/P09321/public/Week4/Engineering_Analysis_missing_PCB.doc

Appendix F – Material Selection Matrix

Appendix G – Refill Process Detailed https://edge.rit.edu/content/P09321/public/Week5/Refill_Process_with_drawing.ppt

Appendix H – MS Project Link https://edge.rit.edu/content/P09321/public/WIPDocs/TwoQuarterPlan.pdf

39