Present

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Post PC Irrigation Sensor Post PC Computing, HUJI 2001 Lecturer: Prof. Scott Kirkpatrick Presented by Ami Serri-Menkes 1

Overview 

Introduction

Critical Tasks

Technology Requirements

Usability Issues

Conclusion

2

Current Needs 

Water Conservation

Energy Conservation

Green Areas: Agriculture Horticulture Nature Reserves

3

Project Goals 

Low Power Irrigation Controller

Smart Sensor Input

Weather Forecast Input

4

Description 

Solar Irrigation Computer

Smart Sensors: Solar Panel Tensiometer ‘Artificial Root’

Solenoids – Electric Valves

Future: Internet Weather Forecast

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6

Competitive Analysis 

Competitors

Manual Irrigation

Timer-based Irrigation

Strengths

Water Use Efficiency

Weaknesses

Price of Connectivity, Components

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8

9

10

11

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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

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Data Integration 

Time-based to Tension-based

Depends on Plants, Soil Type

=> Calibration:min,max

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16

User Testing 

(video clip)

17

Usability Issues 

3 Modes: Sensor,Auto-run/off,Manual

=>2 Modes: Sensor, Manual

On/Off buttons confusing

=>STN button or new Mode button

18

Future Work 

Component and Data Integration

Cellular Connectivity (SMS?)

New Sensors (LeafSense)

Usability

19

Conclusion 

Present: Prototype (non cellular)

Future: Connected

Energy, Water, Fertilizer Savings

Time Savings

20

What We Learned 

How to Develop Ideas

Technical Analysis

User Testing

Solar Power

Irrigation

21

Thanks 

Prof. Scott Kirkpatrick, HUJI

Ilan Porat, Rotem

Heiner Lieth, Loren Oki, UC Davis

Post PC students

22

Related Web Sites 

www.tipa.gov.il

lieth.ucdavis.edu

www.bermad.com

www.earthsystemssolutions.com

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Questions/Remarks 25

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