this presentation includes the information about components of system.

2. Dr.Budhajirao Mulik College of Agricultural Engineering & Technology,
Mandki-Palvan
A
Seminar on
“AUTOMATION IN GREENHOUSE”
Presented by
Ghule Aniket Shivram
ENMPU140671

3. Points to be covered
• Introduction
• Objectives
• Climatic factors
• Components of system
• Working
• Advantages

4.  Greenhouses form an important part of the agriculture and
horticulture sectors in our country.
 They can be used to grow plants under controlled climatic
conditions.
 Automatic monitoring and controlling of the climatic parameters
which directly or indirectly govern the plant growth and hence
their production.

5. Major Component Of Climate:
 Light
 Temperature
 Humidity
 Wind
 Rainfall

6. A Greenhouse Can Control
• Heat – Attempt to prevent freezing or overheating – for tomatoes
and other warm weather vegetables, some horticulturalists assume
no growth occurs below 50°F (10°C) or above 86°F (30°C),
blossoms may drop off if temperature is above 85°F (29°C)
• Water – No direct rainfall on soil inside the greenhouse, so
irrigation must be provided, water volume and timing can be
controlled to optimize growth

7. • Light – Any covering will block some percentage of light (or
particular wavelengths of light) available to plants – shading may
be beneficial when too hot
• Air Flow and Humidity – If the greenhouse is totally enclosed,
humidity will increase. Blossoms may drop off some plants at
extreme low or high humidity.

8. Types of Automated Irrigation System
• Volume-Based Automated Irrigation System
• Time Based Automated Irrigation System
• Real Time Feedback System or Sensor based system

9. Components
 Sensors
 Microcontroller
 Liquid Crystal Display
 Actuators – Relays
 Devices controlled
1. Water pump
2. Sprayer
3. Cooler
4. Lights

10. Microcontroller
• The microcontroller is the heart of the automatic greenhouse control
system.
• It constantly monitors the digitized parameters of the various sensors
and verifies them with the predefined threshold values
• A microcontroller is a general purpose device, but that is meant to read
data, perform limited calculations on that data and control its
environment based on those calculations.
• It activates the actuators to perform a controlled operation.

11. Fig: Microcontroller

12. Sensors
This part of the system consists of various sensors namely
1. Temperature & Humidity sensor
2. Light sensor (LDR)
3. Moisture sensor

13. Temperature & Humidity sensor
• A temperature and humidity sensor is a device that provides the
temperature and humidity measurement at a given time.
• It uses a capacitive humidity sensor and a thermistor to measure
the surrounding air, and spits out a digital signal on the data pin.
• It is fairly simple to use.

14. Fig. : Temperature and humidity sensor

15. Light sensor
• A photoresistor or light-dependent resistor(LDR) or photocell is
a light-controlled variable resistor.
• The resistance of a Photoresistor decreases with increasing
incident light intensity; in other words, it exhibits photoconductivity.
• A light dependent resistor is a small, round semiconductor.

16. Fig: Light Sensor

17. Moisture sensor
• Soil moisture sensor is the device which measures the content of
water in the soil.
• Soil moisture measurement is important to help farmers manage
their irrigation systems.
• It consists of two probes which are used to measure the volumetric
content of water.

18. Fig: Moisture Sensor

19. Relays
• A relay is an electrically operated switch.
• They are used to turn on AC devices such as motors, coolers, pumps,
sprayers.

20. Solenoid valve
• A solenoid valve is an electromechanical device in which
the solenoid uses an electric current to generate a magnetic field.
• Multiple solenoid valves can be placed together on a manifold.

21. Water timer
• A water timer is an electromechanical device that, when placed on a
water line, increases or decreases the water flow through the use of
an embedded valve.
• It is used in conjunction with irrigation sprinklers to form
an automated or non-automated sprinkler system.

22. LCD Display
• A liquid-crystal display (LCD) is a flat-panel display.
• It is used to show outputs.

23. Jumper Wires
• A jump wire is an electrical wire, or group of them in a cable, with a
connector or pin at each end, which is normally used to interconnect the
components
• Individual jump wires are fitted by inserting their "end connectors" into the
slots provided in a breadboard, the header connector of a circuit board, or a
piece of test equipment.

24. Source: www.circuito.io
VCC TO ARD 3.3
SLCK TO ARD 13
CS TO ARD 3
RST TO ARD 5
DC TO ARD 5
DN TO ARD 11

26. Working :

27. Advantages
• Increases fertility
• Better productivity
• Increase in quality of crop
• Percentage of germination of seeds is high in green house
• Decrease labour cost

28. References
• www.wikipedia.org
• www.dripworks.com
• www.google.com
• www.circuito.io

29. Thank you