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Post PC Irrigation Sensor. Post PC Computing, HUJI 2001 Lecturer: Prof. Scott Kirkpatrick Presented by Ami Serri-Menkes. Overview. Introduction Critical Tasks Technology Requirements Usability Issues Conclusion. Current Needs. Water Conservation Energy Conservation Green Areas:
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Post PC Irrigation Sensor Post PC Computing, HUJI 2001 Lecturer: Prof. Scott Kirkpatrick Presented by Ami Serri-Menkes
Overview • Introduction • Critical Tasks • Technology Requirements • Usability Issues • Conclusion
Current Needs • Water Conservation • Energy Conservation • Green Areas: Agriculture Horticulture Nature Reserves
Project Goals • Low Power Irrigation Controller • Smart Sensor Input • Weather Forecast Input
Description • Solar Irrigation Computer • Smart Sensors: Solar Panel Tensiometer - ‘Artificial Root’ • Solenoids – Electric Valves • Future: Internet Weather Forecast
Competitive Analysis • Competitors • Manual Irrigation • Timer-based Irrigation • Strengths • Water Use Efficiency • Weaknesses • Price of Connectivity, Components
Technology Requirements • Power Budget: • 9V battery: 5.085 WHr • Solar panel: 12-30WHr/Day • Power Consumption: • 1 Solenoid: 14mWHr/Day • 4 Solenoids: 64mWHr/Day. • CPU+Display: 7mWHr/Day • Tensiometer: 3mWHr/Day. • Cellular: 25mWHr/Day (listen mode) • Total: 100mWHr/Day
Data Integration • Time-based to Tension-based • Depends on Plants, Soil Type • => Calibration:min,max
User Testing • (video clip)
Usability Issues • 3 Modes: Sensor,Auto-run/off,Manual • =>2 Modes: Sensor, Manual • On/Off buttons confusing • =>STN button or new Mode button
Future Work • Component and Data Integration • Cellular Connectivity (SMS?) • New Sensors (LeafSense) • Usability
Conclusion • Present: Prototype (non cellular) • Future: Connected • Energy, Water, Fertilizer Savings • Time Savings
What We Learned • How to Develop Ideas • Technical Analysis • User Testing • Solar Power • Irrigation
Thanks • Prof. Scott Kirkpatrick, HUJI • Ilan Porat, Rotem • Heiner Lieth, Loren Oki, UC Davis • Post PC students
Related Web Sites • www.tipa.gov.il • lieth.ucdavis.edu • www.bermad.com • www.earthsystemssolutions.com