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SNUPISensor Network Utilizing Powerline Infrastructure
Gabe CohnResearcher
Co-Founder of SNUPI Technologies
2013 ACEEE Hot Water Forum
Nov. 5, 2013
Ultra-Low-Power, General-Purpose Wireless Sensing Platform
ubicomp labuniversity of washington
S
N
U
P
I
ensor
etwork
tilizing
owerline
nfrastructure
2
hard to maintaineasy to deploy
3
hard to maintain
4
Increase Battery Life
5
not practicalreduce power
consumption
Power / Range Tradeoff
6
Power / Range Tradeoff
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Power / Range Tradeoff
8
9SNUPI
Power Line Coupling
• receiver plugged into
power line
• power line acts as
receiving antenna
• transmitter sends data
to nearest power line
10
Power Line Coupling
11
SNUPI Power Consumption
12
Existing Nodes SNUPI0
10
20
30
40
50
60
Communication (Radio) Computation (CPU) Total PowermW
SNUPI Power Consumption
13
Existing Nodes SNUPI
Communication (Radio) Computation (CPU) Total Power
1 mW
100 µW
10 µW
10 mW
100 mW
2 Orders of Magnitude Reduction in
Communication Power
SNUPI Power Consumption
14
Existing Nodes SNUPI
Communication (Radio) Computation (CPU) Total Power
1 mW
100 µW
10 µW
10 mW
100 mW
1 Order of Magnitude Reduction in
Total Peak Power
SNUPI Power Consumption
15
Existing Nodes SNUPI
Communication (Radio) Computation (CPU) Total Power
1 mW
100 µW
10 µW
10 mW
100 mW
SNUPI Battery Life
16
Over 10 years on a single coin-cell battery!
Applications
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indoor
small
very long lived
low-throughput
home environmental sensing
smart home
home security
temperature
humidity
moisture
pressure
light
air quality
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www.snupi.com
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WALLY | HOMEwww.snupi.com
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WALLY | SENSOR
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WALLY | HUB
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www.snupi.com
Node with sensors
Gateway
Smartphone app
WALLY | HOME
Wally Sensor
Wally Hub
Wally Smartphone App
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WALLY | FUTURE DIRECTIONS
Embedding Wally Sensors into Appliances
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WALLY | FUTURE DIRECTIONS
Detecting Potential Leaks Before They Occur
Time
Tem
pera
ture
Abnormal Behavior
SNUPI
Sensor Network Utilizing Powerline Infrastructure
Ultra-Low-Power, General-Purpose Wireless Sensing Platform
Gabe Cohn
2013 ACEEE Hot Water Forum
Nov. 5, 2013
ubicomp labuniversity of washington
www.snupi.com
