Ultra-Low-Power, General-Purpose Wireless Sensing Platform

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

7

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

17

indoor

small

very long lived

low-throughput

home environmental sensing

smart home

home security

temperature

humidity

moisture

pressure

light

air quality

18

19

20

21

www.snupi.com

22

WALLY | HOMEwww.snupi.com

23

WALLY | SENSOR

24

WALLY | HUB

25

www.snupi.com

Node with sensors

Gateway

Smartphone app

WALLY | HOME

Wally Sensor

Wally Hub

Wally Smartphone App

26

WALLY | FUTURE DIRECTIONS

Embedding Wally Sensors into Appliances

27

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

gabe@snupi.com

2013 ACEEE Hot Water Forum

Nov. 5, 2013

ubicomp labuniversity of washington

www.snupi.com