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Sensor Networks and Platforms for Advancing Water Research

Sensor Networks and Platforms for Advancing Water Research. Prashant Shenoy University of Massachusetts Amherst. Motivation. Water and environmental monitoring today Often requires periodic field visits for data collection Networking of sensor / instruments infeasible or expensive

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Sensor Networks and Platforms for Advancing Water Research

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  1. Sensor Networks and Platforms for Advancing Water Research Prashant Shenoy University of Massachusetts Amherst

  2. Motivation • Water and environmental monitoring today • Often requires periodic field visits for data collection • Networking of sensor / instruments infeasible or expensive • No 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

  3. Technology Trends • Low-cost wireless network technologies available • WiFi-based networks are the most common example • Mesh-based deployment at field site • Backhaul 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 available • Low-power microcontrollers, high-capacity flash storage • Battery-powered with lifetimes of weeks to months • Can be solar or wind-powered!

  4. Sensor Node 15 dBi antenna(802.11b) External Antenna(XE1205) 3 Watt Solar Panel Weather-ProofEnclosure

  5. Solar-powered Sensor Platforms Brick Macro sensor Capability (processing, sensing, storage) Mote Micro sensor node Size/Power

  6. Sensors Hydrophone Camera Argonaut(Pressure, Flow, Temperature) MicroLab - Nutrient sensor

  7. RiverNet: A River Sensor Network • Scalable sensor network that monitor water bodies (e.g. rivers) and watersheds • Initial deployment: Fort River, Amherst • Ongoing: Harvard Forest stream guages • Planned: Blackstone & CT rivers

  8. Summary • It is possible to inexpensively network field sensors for water monitoring. • Deployments in environments without infrastructure is possible • Easily deployable wireless sensor networks • Self-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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