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?