watermainia - university of massachusetts amherst
TRANSCRIPT
![Page 1: WaterMainia - University of Massachusetts Amherst](https://reader031.vdocuments.net/reader031/viewer/2022011921/61d873bd36252e351006dcf5/html5/thumbnails/1.jpg)
Senior Design Project: WaterMainiaDecember 5th, 2016
Midway Design Review
G
![Page 2: WaterMainia - University of Massachusetts Amherst](https://reader031.vdocuments.net/reader031/viewer/2022011921/61d873bd36252e351006dcf5/html5/thumbnails/2.jpg)
2
WaterMainia
MichaelMoran
JonMcAvoy
Greg Boudreau
Team Manager
ProfessorHollot
Advisor
![Page 3: WaterMainia - University of Massachusetts Amherst](https://reader031.vdocuments.net/reader031/viewer/2022011921/61d873bd36252e351006dcf5/html5/thumbnails/3.jpg)
3
What is the Problem?
Water Conservation Water Pipe Damage
J
![Page 4: WaterMainia - University of Massachusetts Amherst](https://reader031.vdocuments.net/reader031/viewer/2022011921/61d873bd36252e351006dcf5/html5/thumbnails/4.jpg)
4
Our Solution - WaterMainiaSense
G
Detect Alert
MJ
![Page 5: WaterMainia - University of Massachusetts Amherst](https://reader031.vdocuments.net/reader031/viewer/2022011921/61d873bd36252e351006dcf5/html5/thumbnails/5.jpg)
5
Requirements Analysis: Specifications
1. Must be implemented using 3/4’’ pipe2. Water flow data is metered and recorded3. Store data for previous two years4. Display water consumption data in tables, line charts and pie
charts5. Close water main & notify owner within one minute from pipe
burst6. Alerts owner of any sized leaks7. Power < 50W8. Cost <$500 budget
GM
![Page 6: WaterMainia - University of Massachusetts Amherst](https://reader031.vdocuments.net/reader031/viewer/2022011921/61d873bd36252e351006dcf5/html5/thumbnails/6.jpg)
6
PDR Block Diagram
Android App
Flow Sensor
Rasp Pi 3 Model B Emergency
Shutoff ValveWater In
Manual OverrideWiFi
Chip
Data/Alerts Output Change Settings
G
ADC Power Relay
M
![Page 7: WaterMainia - University of Massachusetts Amherst](https://reader031.vdocuments.net/reader031/viewer/2022011921/61d873bd36252e351006dcf5/html5/thumbnails/7.jpg)
7
MDR DeliverablesG
● Goal: Have the vacation mode functionality implemented○ Investigate and if possible implement the electromagnetic flow
meter○ Investigate and if possible implement the ultrasonic flow meter○ Implement emergency shutoff system○ Have emergency shutoff alert user via an app
M
![Page 8: WaterMainia - University of Massachusetts Amherst](https://reader031.vdocuments.net/reader031/viewer/2022011921/61d873bd36252e351006dcf5/html5/thumbnails/8.jpg)
8
Block Diagram
Android App
Flow Sensor
Rasp Pi 3 Model B Emergency
Shutoff Valve
Water In
Manual OverrideWiFi Chip
G
ADCSolid State Relay
Bluetooth Chip
Plumbing Simulation
Signal Reshaping
Water Flow
Cloud Server
Data Transfer
Data Transfer Alert Message
120V from Outlet
Noisy signal created
Clean signal
3.3V
![Page 9: WaterMainia - University of Massachusetts Amherst](https://reader031.vdocuments.net/reader031/viewer/2022011921/61d873bd36252e351006dcf5/html5/thumbnails/9.jpg)
9
WaterFlow Detection M
SumpPump
Electromagnetic sensor
Solenoid Valve
Ball Valve
![Page 10: WaterMainia - University of Massachusetts Amherst](https://reader031.vdocuments.net/reader031/viewer/2022011921/61d873bd36252e351006dcf5/html5/thumbnails/10.jpg)
10
Power
Requirements:● Input=120V AC● ~ 12.5W for cpu● ~ 18W for motor● ~ <15W for flow monitor
(.6W for the coils)● Overall goal <50W power
consumption
M
*If power fails Emergency shutoff fails in the open position and will have to be manually closed
![Page 11: WaterMainia - University of Massachusetts Amherst](https://reader031.vdocuments.net/reader031/viewer/2022011921/61d873bd36252e351006dcf5/html5/thumbnails/11.jpg)
11
Ultrasonic SensorM
Complicatedbuild
Not as accurate Costly $$ Not worth
implementation + + =
![Page 12: WaterMainia - University of Massachusetts Amherst](https://reader031.vdocuments.net/reader031/viewer/2022011921/61d873bd36252e351006dcf5/html5/thumbnails/12.jpg)
12
Electromagnetic Coil Design
Faraday’s Lawu =BvdMagnetic Field StrengthB=NITime Varying Voltage EquationV(t) = I(t)((wL)2+R2))½
Coil Self-InductanceL = 2�*k*N2*r2/l
B = Mag Field Strengthv = velocity of liquidd = diameter of pipeN = turnsw = angular frequencyL = Inductancer =radiusk = coeff of airl = length
![Page 13: WaterMainia - University of Massachusetts Amherst](https://reader031.vdocuments.net/reader031/viewer/2022011921/61d873bd36252e351006dcf5/html5/thumbnails/13.jpg)
13
Electromagnetic SensorJ
Water Flow
Magnetic Coils Electrodes Signal
Morphing
Water flows through the
system
Coils induce voltage
between electrodes
Voltage is read
between electrodes
![Page 14: WaterMainia - University of Massachusetts Amherst](https://reader031.vdocuments.net/reader031/viewer/2022011921/61d873bd36252e351006dcf5/html5/thumbnails/14.jpg)
14
Amplification and Filtering Stage
Filtering▪ 4 Stage Butterworth Filter▪ -10db Drop at 100Hz
▪ 4 RC4558P IC▪ Further Low Pass Filtering
Anything Over 10Hz▪ RC Filters
Amplification▪ Two Stage Amplification▪ 2 RC4558P IC▪ Input Impedance: 5M▪ CMRR: 90db▪ Instrumentation Amplifier
▪ 20db Gain (10x)▪ Non-Inverting Op-Amp
▪ 40 db Gain (100x)
![Page 16: WaterMainia - University of Massachusetts Amherst](https://reader031.vdocuments.net/reader031/viewer/2022011921/61d873bd36252e351006dcf5/html5/thumbnails/16.jpg)
16
SoftwareG
![Page 17: WaterMainia - University of Massachusetts Amherst](https://reader031.vdocuments.net/reader031/viewer/2022011921/61d873bd36252e351006dcf5/html5/thumbnails/17.jpg)
17
Data TransferG
Android App
WiFi Chip
Cloud Server
Push Notification
Download Water Flow Data
Change WaterMania Settings
Upload Water Flow Data
Change WaterMania Settings
SMS Message
![Page 19: WaterMainia - University of Massachusetts Amherst](https://reader031.vdocuments.net/reader031/viewer/2022011921/61d873bd36252e351006dcf5/html5/thumbnails/19.jpg)
19
Android AppG
![Page 20: WaterMainia - University of Massachusetts Amherst](https://reader031.vdocuments.net/reader031/viewer/2022011921/61d873bd36252e351006dcf5/html5/thumbnails/20.jpg)
20
Budget
▪ Solid State Relay - $11.28▪ MCP3008 ADC - $19.86▪ Raspberry Pi 3 SBC - $41.99▪ GPIO Expansion board - $9.90▪ 110V AC Solenoid Valve - $26.99▪ 24 AWG Magnetic Wire - $16.40▪ Power Cord - $15.64▪ Bridge Rectifier - $6.75▪ 5V Voltage regulators $6.45▪ 12V regulators $5.61▪ Transformer $16.56
Total: 177.43
J
![Page 21: WaterMainia - University of Massachusetts Amherst](https://reader031.vdocuments.net/reader031/viewer/2022011921/61d873bd36252e351006dcf5/html5/thumbnails/21.jpg)
21
Gantt ChartJ
PDR10/21
SDP Final Report
1/25/17CDR
3/4/17
FPR4/15/17
Demo Day
4/22/17
MDR12/5/16
SDP Draft
Report12/16/1
6
![Page 22: WaterMainia - University of Massachusetts Amherst](https://reader031.vdocuments.net/reader031/viewer/2022011921/61d873bd36252e351006dcf5/html5/thumbnails/22.jpg)
22
CDR DeliverablesG
Fully Parametrized Flow Data Data Analysis Integrated and Compacted Design
![Page 23: WaterMainia - University of Massachusetts Amherst](https://reader031.vdocuments.net/reader031/viewer/2022011921/61d873bd36252e351006dcf5/html5/thumbnails/23.jpg)
23
BloopersG\M
M
![Page 24: WaterMainia - University of Massachusetts Amherst](https://reader031.vdocuments.net/reader031/viewer/2022011921/61d873bd36252e351006dcf5/html5/thumbnails/24.jpg)
24
Thank You
Questions
GG