Preliminary Design Review Team 3 Smart Hydroponic Greenhouse

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 Department of Electrical and Computer Engineering 1

Team Members Michael D’Anna Samantha de Groot Maxwell Joyce Shaun Palmer Department of Electrical and Computer Engineering 2

What problems are we solving? Department of Electrical and Computer Engineering 3

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 Department of Electrical and Computer Engineering 4

Alternate Solutions Miracle-Gro Indoor Gardening Pod • Expensive • Low yield Department of Electrical and Computer Engineering Traditional Outdoor Garden • Requires yard space • Time consuming 5

Block Diagram Department of Electrical and Computer Engineering 6

Requirements Analysis: Specifications Automated • Lighting control • Hydroponic watering • Nutrient dispersal Closed loop system to recycle water Must fit inside of a studio apartment ~(2’x 4’) Yield 6 fruiting plants Reusable App with simple UI – easy for people to use and learn Department of Electrical and Computer Engineering 7

Requirements Analysis: Inputs and Outputs Inputs • Sensor data • Humidity • p. H • Temperature • Moisture in growing medium • Plant Database Outputs • Lighting cycle control • Hydroponic pump control • Nutrient dispersal control Department of Electrical and Computer Engineering 8

Lighting System Grow Lights • 264 W LED Light Fixture • 600 W HPS Equivalent • Primarily Blue and Red LEDs Department of Electrical and Computer Engineering 9

Voltage Regulation AC 120 V 60 Hz power supply Custom PCBs with voltage regulators Supply different voltage levels to: Sensors Raspberry Pi Department of Electrical and Computer Engineering 10

Drip Hydroponic System Department of Electrical and Computer Engineering 11

Nutrient Absorption % How p. H affects Nutrient Absorption in Plants p. H Department of Electrical and Computer Engineering 12

Sensors for Hydroponics Hygrometer Temperature and Humidity Sensor Department of Electrical and Computer Engineering p. H Sensor Water Level Float Switch 13

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

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 Department of Electrical and Computer Engineering 15

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 Department of Electrical and Computer Engineering 16

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 Department of Electrical and Computer Engineering 17

Questions? Department of Electrical and Computer Engineering 18