FRIDAY, DECEMBER 18 , 2009

RYAN MILLER – ME, PROJECT MANAGERCHRIS OXLEY – EE, LEAD ENGINEER

RYAN ENYEART – ME, SYSTEM ENGINEERALEX MANLEY – EE, SYSTEM ENGINEER

P10057 – Cigarette Smoking Machine D

Agenda

OverviewCustomer NeedsHouse of QualitySystem DesignProject PlanningRisk AssessmentKnowns and UnknownsQ&A

Overview

Follow-on project to P10054 – Monitoring Device for Human Smoking Behavior

Acquisition of real-world DIP dataRedesign of P10054 prototype for

manufacturingRe-engineering of prototype to meet unmet

needs and goals

Customer Needs – Ranked

1. Effective Solution 1. Measures DIP flow 2. Measures flow through cigarette 3. Complete data recording 4. Data Storage 5. Easy data offloading 6. Ease of data access

2. Ergonomics and Usability 1. No physical hazards 2. Must not alter behavior 3. Portable 4. Comfortable and ergonomically correct 5. Minimal required user training 6. Withstands daily use conditions 7. Long runtime 8. Indoor/outdoor use 9. Easy to charge

Customer Needs – Ranked

3. Manufacturing 1. Uses minimally expensive processes 2. Producible in large quantities 3. Minimal production waste 4. Maximum use of COTS

4. Documentation 1. Complete CAD package (electrical/mechanical) 2. Test procedures for system & major components 3. Clinical user guide 4. End-user guide

5. Prototype Assessment1. Benchmarking 2. Focus Group Data

House of Quality

Customer Needs

Eng

inee

ring

Met

rics

2.1

Pre

ssur

e ac

ross

dev

ice

mou

thpi

ece

2.2

Vol

ume

thro

ugh

ciga

rett

e

2.3

Dia

phra

gm e

xpan

sion

3.1

Dat

a qu

antit

y

3.2

Dat

a qu

ality

/com

plet

enes

s

3.3

Dat

a in

terf

ace

3.4

Bac

kup

redu

ndan

cy

4.1

Por

tabi

lity

- id

eal s

ize/

wei

ght

4.2

Com

fort

4.3

Saf

ety

4.4

Uno

btru

sive

ness

4.5

Eas

e of

use

4.6

Low

pow

er c

onsu

mpt

ion

4.7

Qui

ck c

harg

ing

4.8

Cha

rgin

g sy

stem

com

plex

ity

4.9

Load

rat

ing

4.10

Wat

er in

trus

ion

5.1

Sca

labi

lity

5.2

Cos

t

6.1

Com

plet

e C

AD

pac

kage

6.2

Tes

t pr

oced

ure

thor

ough

ness

6.3

Use

r gu

ide

7.1

Foc

us g

roup

siz

e

7.2

Foc

us g

roup

age

dem

ogra

phic

s

7.3

Foc

us g

roup

hea

lth d

emog

raph

ics

7.5

Ben

chm

ark

prec

isio

n

7.6

Tes

t ac

cura

cy

7.7

Ben

chm

arki

ng c

ompl

etio

n

Effective Solution Flow through cigarette x x x x

DIP flow x x x

Data Storage x x x x

Easy data offloading x

Complete data recording x x

Ease of data access x x

Ergonomics and Usability Long runtime x

Portable x x x x x x x x x

Must not alter behavior x x x x x x

Minimal required user training x x x x x

Comfortable and ergonomically correct x x x x x

Easy to charge x x x

No physical hazards x x x x x x

Indoor/outdoor use x x x x

Withstands daily use conditions x x x x

Manufacturing Producible in large quantities x x

Minimal production waste x x

Maximum use of COTS x x

Uses minimally expensive processes x x

Documentation Complete CAD package (electrical/mechanical) x

Test procedures for system & major components x x x x

Clinical user guide x

End-user guide x

Prototype Assessment Benchmarking x x x x

Focus Group Data x x x

Unit of Measure

dP dV dL

GB

s

Pre

cisi

on

# of

com

patib

le p

rogr

ams

# of

bac

kups

or

back

up m

etho

ds

Siz

e an

d/or

wei

ght

Num

ber

of n

egat

ive

focu

s gr

oup

com

men

ts

Num

ber

of in

jurie

s/se

verit

y of

inju

ry

Num

ber

of a

ltere

d be

havi

ors

Set

up t

ime/

num

ber

of s

etup

ste

ps

Run

/sta

ndby

tim

e

Cha

rge

time

Num

ber

of s

teps

/use

r in

terf

aces

in c

harg

ing

proc

ess For

ce

Intr

usio

n vo

lum

e

Pro

duct

ion

time/

unit

Cos

t pe

r un

it (U

SD

)

Per

cent

age

of d

raw

ings

vs.

tot

al p

arts

Item

s te

sted

/dat

a co

llect

ed p

er u

nit

# of

inte

rfac

es d

ocum

ente

d

Num

ber

of p

artic

ipan

ts

% o

f ap

plic

able

age

s re

pres

ente

d

# of

hea

lth c

ondi

tions

rep

rese

nted

Sam

ple

size

Dat

a co

llect

ion

sam

ple

rate

# of

tes

t ty

pes

per

part

User Input

Micro SDData

Storage

Microcontroller

Battery

SignalProc.

SignalProc.

Amp

Handpiece

Automated

On/OffSensor

Temp.Sensor

Pressure

Sensor

DIPBelt

StrainGauge

Calibration

UserFeedba

ck

System Level Design

Alex Manley

Ryan Enyeart

Chris Oxley

Ryan Miller

Airflow Path

Packaging

System Design Alternatives

Alternative Component Replaces

Turbine Spirometer Pressure, temperature sensors

Velocity sensor Pressure sensor

Inductive sensor Strain gauge on DIP belt

Piezoelectric respiratory effort sensor

DIP belt

Project Planning, Weeks 1-4

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28Phase In Work? Done? Days Owner Activity #Planning x 1 All Team Role Selection xPlanning x 7 All Background Research x x x x x x xPlanning x 5 All Review Patent 7164993 x x x x xPlanning x 1 All Meet with team P10054 xSpecs/Tests x x 4 All Initial demo/test of P10054 device x x x xSpecs/Tests x 10 All Customer Needs Assessment x x x x x x x x x xPlanning x 1 All Team Values and Norms xPlanning x 6 All Initial Project Plan x x x x x xSpecs/Tests x 7 All Generate Engineering Specs x x x x x x xPlanning x 5 All Initial Customer Meetings x x x x xPlanning 4 All Secondary Customer Meetings x x x xPlanning x 14 All Risk Assessment x x x x x x x x x x x x x xSys Design x 4 All Concept Generation x x x xSys Design 5 All Concept Revision x x x x xSpecs/Tests 5 RE,CO CReSS Benchmarking x x x x xSpecs/Tests 15 RM Focus Group Prep and Execution x x x x x x xSys Design x 12 All System-Level Design x x x x x x

30-Nov-09 7-Dec-09 14-Dec-09 1-Jan-10

Project Planning, Weeks 5-8

29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56Phase In Work? Done? Days Owner Activity #Specs/Tests 15 RM Focus Group Prep and Execution x x x x x x x xSys Design x 12 All System-Level Design x x x x x xSys Design 1 All System Design Review xSys Design 4 All Needs and Specs Cleanup x x x xDetail Design 5 All System Interface Detail Design x x x x xDetail Design 10 AM Power System Design x x x x x x x x x xDetail Design 10 CO On/Off Switch Design x x x x x x x x x xDetail Design 10 RM Packaging Design x x x x x x x x x xDetail Design 10 RM,RE DIP Detail Design x x x x x x x x x xDetail Design 10 RE,CO Airflow Path Detail Design x x x x x x x x x xDetail Design 10 RM Handgrip Detail Design x x x x x x x x x xDetail Design 10 CO Signal Conditioning Detail Design x x x x x x x x x xDetail Design 10 AM Amplifier Detail Design x x x x x x x x x xDetail Design 5 CO Microcontroller Selection x x x x xDetail Design 5 AM Storage Selection x x x x xDetail Design 5 CO Sensor Selection x x x x xDetail Design 5 All Systems Integration x x x x x

15-Jan-10 22-Jan-108-Jan-10 29-Jan-10

Project Planning, Weeks 9-11

57 58 59 60 61 62 63 50 51 52 53 54 55 56 57 58 59 60 61 62 63Phase In Work? Done? Days Owner Activity #Review 5 All Prelim Detail Design Prep x x x xReview 1 All Prelim Detail Design Review xReview 9 All Final Detail Design Prep x x x x x x x x xReview 1 All Final Detail Design Review x

5-Feb-10 29-Jan-10 5-Feb-10

Risk Assessment

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

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

Questions?