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UUNIVERSITY OF NIVERSITY OF MMASSACHUSETTSASSACHUSETTS, A, AMHERST • MHERST • Department of Computer Science Department of Computer ScienceUUNIVERSITY OF NIVERSITY OF MMASSACHUSETTSASSACHUSETTS, A, AMHERST • MHERST • Department of Computer Science Department of Computer Science
Sensor Networks and Platforms for Advancing Water Research
Prashant ShenoyUniversity of Massachusetts
Amherst
UNIVERSITY OF MASSACHUSETTS, AMHERST • Department of Computer Science
Motivation
Water and environmental monitoring todayOften requires periodic field visits for data collectionNetworking of sensor / instruments infeasible or expensiveNo infrastructure in remote locations
Satellite networks expensive; cellular data networks unavailable“BYON” : bring your own network challenging
Challenge: Design low-cost easily-deployable wireless sensor networks for real-time data collection from the field
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UNIVERSITY OF MASSACHUSETTS, AMHERST • Department of Computer Science
Technology Trends
Low-cost wireless network technologies availableWiFi-based networks are the most common exampleMesh-based deployment at field siteBackhaul via point-to-point long-distance links
Directional antennas: Wifi links can stretch to 10s of kilometers!Other wireless radios: Xtend, XE1205 also give long range
Energy-efficient sensor platforms availableLow-power microcontrollers, high-capacity flash storageBattery-powered with lifetimes of weeks to monthsCan be solar or wind-powered!
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UNIVERSITY OF MASSACHUSETTS, AMHERST • Department of Computer Science 4
3 Watt Solar Panel
15 dBi antenna(802.11b)
External Antenna(XE1205)
Weather-Proof
Enclosure
Sensor Node
UNIVERSITY OF MASSACHUSETTS, AMHERST • Department of Computer Science 5
Solar-powered Sensor Platforms
Size/Power
Cap
ab
ility
(p
roce
ssin
g,
sensi
ng
, st
ora
ge)
Mote Micro sensor node
Brick Macro sensor
UNIVERSITY OF MASSACHUSETTS, AMHERST • Department of Computer Science 6
Hydrophone
Camera
Argonaut(Pressure, Flow, Temperature)
Sensors
MicroLab - Nutrient sensor
UNIVERSITY OF MASSACHUSETTS, AMHERST • Department of Computer Science 7
RiverNet: A River Sensor NetworkScalable sensor network that monitor water bodies (e.g. rivers) and watersheds
Initial deployment: Fort River, AmherstOngoing: Harvard Forest stream guagesPlanned: Blackstone & CT rivers
UNIVERSITY OF MASSACHUSETTS, AMHERST • Department of Computer Science
Summary
It is possible to inexpensively network field sensors for water monitoring.
Deployments in environments without infrastructure is possible
Easily deployable wireless sensor networksSelf-configuring: deploy and go
Use solar – wind power to enhance batter life of sensor nodes
Joint work with Deepak Ganesan, Umass CS
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