Project  Description


This is a senior project for Electrical Engineering students for D4P (Design For Practice) at NAU. The purpose of this project is to create a perfect environment for a specific plant by using sensors and automation. In order for us to do so, we need to isolate each plant in a separate chamber with the same automation on each chamber. This will allow us to monitor the condition and health of the plant

System Architecture

Chamber Design

Requirements

1

RFID Scanner

1.1

System will register & recognize 5 different users

1.2

The scanner will send either a granted or denied signal microcontroller

2

Physical Security

2.1

A lock will automatically open when a verified user tries to access the system

3

Camera

3.1

The camera will snap picture based on motion

3.2

The camera will provide a live feedback to the user (Optional)

4

Feedback (Optional)

4.1

A text message will be sent to the user via a GSM network for alerts

4.2

An LCD Display will indicate the user

4.2.1

Green (Granted access)

4.2.2

Red (Denied access)

5

Water Tank will provide the water to the system, we assume that it will always be full

        6

Water Pump 1 and 2 will be On until the moisture sensor reading reaches a certain moisture level

6

Pump will provide water from a tank into the drip system

7

Drip System

7.1

Will provide water in a certain pattern depending on the plants need of water, (might not use, since that the soil moisture sensor already controls the flow of water.)

7.2

Will have a separate drip system for each chamber for better water control (Optional)

8

water

8.1

The control system will monitor the moisture and control the pump

9

Network/Security

9.1

The control system will monitor the motion

9.2

The control system will store security information

9.3

The control system will monitor network condition

10

Lighting

10.1

The control system will monitor the lighting conditions within the chamber and control the lights

11

Aeration

11.1

The control system will monitor humidity, temperature and control the fans

11.2

Every hour the suction fan will receive a signal to turn ON for 30 to 60 seconds. (Depends on Temperature / Humidity)

11.3

Heating/Cooling fans will remain ON, until a temperature is reached.

11.4

Heating/Cooling fans will remain ON, until a temperature is reached.

11.5

Suction Fan will turn On until a good air quility is reached

11.5

Mode 2: Heating and cooling fan is signaled ON, they will stay ON for 30 mins. 

12

Temperature

12.1

Temperature sensor will send and receive a signal to the microcontroller

13

Lighting

13.1

Photoresistor will send and receive a signal to the microcontroller

13.1.1

Photoresistor will send a signal to turn ON/OFF the lights

14

Aeration

14.1

Humidity sensor will send and receive a signal to the microcontroller

15

Moisture

15.1

Moisture sensor will send and receive a signal to the microcontroller

16

Security

16.1

PIR sensor will send and receive a signal to the microcontroller.

16.2

PIR sensor will send a signal (input) to the camera

16.3

Camera will snap a picture (output) 

17

Application

17.1

Will provide the user with the proper data

17.1.1

Moisture

17.1.2

Temperature

17.1.3

Air Quality

17.1.4

Lighting

17.1.5

Security Alert

18

Text message

18.1

Security alert will be sent based on the RFID scanner and PIR sensor


Logic Flow

Data Flow

Hardware