1. Smart Hydroponic Greenhouse October 17, 2016
Lemon costs $1
Preliminary Design Review
Team 3
Smart Hydroponic Greenhouse
October 17, 2016
Advisor: Professor Jackson
Michael D’Anna, Samantha de Groot, Maxwell Joyce and Shaun Palmer 1 1 1

2. Team Members Michael D’Anna Samantha de Groot Maxwell Joyce
Lemon costs $1
Team Members
Michael D’Anna
Samantha de Groot
Maxwell Joyce
Shaun Palmer 2 2 2

3. What problems are we solving?
Access to local produce
Reduce cost and carbon footprint of shipping
Hard for many people to grow their own food due to busyness and lack of space/knowledge
Push for self-sustainability 3 3 3

4. Our Solution: Fully Automated Smart Greenhouse
Array of sensors inside greenhouse
Continuous measurements
Displays information on app
Sensor data used for the water pump and nutrient dispersal control 4 4 4

5. Alternate Solutions Miracle-Gro Indoor Gardening Pod Expensive
Low yield
Traditional Outdoor Garden
Requires yard space
Time consuming 5 5 5

6. Block Diagram 6 6 6

7. Requirements Analysis: Specifications
Automated
Lighting control
Hydroponic watering
Nutrient dispersal
Closed loop system to recycle water
Must fit inside of a studio apartment ~(2’x4’)
Yield 6 fruiting plants
Reusable
App with simple UI – easy for people to use and learn 7 7 7

8. Requirements Analysis: Inputs and Outputs
Sensor data
Humidity pH
Temperature
Moisture in growing medium
Plant Database
Outputs
Lighting cycle control
Hydroponic pump control
Nutrient dispersal control 8 8 8

9. Lighting System Grow Lights 264W LED Light Fixture 600W HPS Equivalent
Primarily Blue and Red LEDs 9 9 9

10. Voltage Regulation AC 120V 60Hz power supply
Custom PCBs with voltage regulators
Supply different voltage levels to:
Sensors
Raspberry Pi 10 10 10

11. Drip Hydroponic System11 11 11

12. How pH affects Nutrient Absorption in Plants

13. Sensors for Hydroponics
Hygrometer
pH Sensor
Temperature and Humidity Sensor
Water Level Float Switch 13 13 13

14. Control Unit Will be a Raspberry Pi model b+
Connected to app through Wi-Fi
Uses inputs from sensors (pH, water level, etc.)
Controls the hydroponic pumps and the lighting 14 14 14

15. App Shows sensor data in graphical form
Tells the user when more water or nutrients need to be added
Requests simple user inputs about changes in plants
Will offer tips on how to handle and harvest plants 15 15 15

16. Concerns and Fallbacks
UV Light can damage eyes
UV blocking film
Complexity of nutrient dispersal system
Lead times on sensors
Testing time
Assembly time
Start early 16 16 16

17. MDR Deliverables Hydroponic mock-up
Functional nutrient dispersal system
At least 1 sensor reading to control unit
Lighting interfaced with control unit
Android Application skeleton 17 17 17

18. Questions? 18 18 18