4. •Greenhouses are controlled-area-environment to grow
plants.
•It is a structural building with different types of covering
materials, such as a glass or plastic roof and frequently
glass or plastic walls.
•It heats up because incoming visible solar radiation (for
which the glassis transparent) from the sunis absorbed
by plants ,soil, and other things inside the building.
5.
6. AUTOMATEDGREENHOUSE
• Greenhouses form an important part of the agriculture and horticulture
sectors of a country.
• They can be used to grow plants under controlled climatic conditions for
optimal production.
• Automated greenhouse involves the automatic monitoring and controlling
of climaticparameters whichdirectly or indirectly governthe plant
growth and hence their production.
• In order to control the climate factors and environment autonomously ,it
isrequired a computer/software equipment.
8. WHATIS ARDUINO ?
• open-source electronics prototyping platform/environment .
• The Arduino is built for designers and artists—people with little technical
expertise.
9. PROGRAMMING ENVIRONMENT
• The Arduino Uno can be programmed with the Arduino software IDE.
• The Atmega328 on the Arduino Uno comes preburned with a Bootloader
that allows youto upload newcode to it without theuseof anexternal
hardware programmer.
• You can also bypass the Bootloader and program the microcontroller
through the ICSP(In-Circuit Serial Programming) header.
• Arduino IDEworks on windows , linux as well as Mac lion X platform
s.
10. ADVANT
AGESOF ARDUINO
• Huge documentation and support
• Larger library collection
• Open source
• Simplified and user-friendly programming language
• No additional programmer/burner hardware required for programming board
• Highly Portable
• Low power consumption
• Highly customizable
12. “ARDUINO IN THEGREENHOUSE”
• Arduino is the heart of the The Intelligent Greenhouse.
• Arduino boardsare able to receive, analyse and send data in order to
maximise plant growth and health.
13. BENEFITS
• Automatically control environmental conditions within greenhouse allowing any
type of plants to be grown all year round
• Eliminates risk of greenhouse not being maintained at specific environmental
conditionsdue to human error
• Minimizes labor costs involved in maintaining a greenhouse
• Customer able to define specific greenhouse conditions
• “Plug-and play” product
14. FEATURES
• Detect and maintain temperatures from -40°C to 125°C.
• Detect and maintain humidity levels between 5% RHand 95% RH
• Detect sunlight and artificial light.
• Detect and maintain moisture in soil.
• Continuously update of statistics and parameters over the internet.
15. SYSTEMOVERVIEW
• T
emperature sensor
• Humidity sensor
• Moisture Sensor
• Ambient Light Sensor
• AT
mega8
• I/O Ports
Arduino • Heater/Fan
• Exhaust Fan
• Fluorescent Light-bulb
• Water Pump
• Internet
• LCD
Sensors Devices
• Voltage output from sensors sent as inputs into Arduino
• Based on input values, Arduino outputs specific
voltages to turn ON/OFF devices
19. AMBIENT LIGHTSENSOR
• A light sensor,as its name suggests,is a device
that is used to detect light.
• A photocell or photo resistor for example, is a
small sensor that changes its resistance when light
shinesonit; they are used in many consumer
products to determine the intensity of light.
• Operating temperature: -20°C to 75°C
• Wavelength Measurement R
ange: 400nm to
1100nm
20. TEMPERATURESENSOR
• Manufacturer: T
exasInstruments LM35
• FEA
TUR
E
SDE
SCR
IPTION:
• Calibrated Directly in ° Celsius (Centigrade)
• Linear + 10 mV/ °CScale Factor
• 0.5°C Ensured Accuracy (at +25°C)
• LM35 hasan advantage over linear temperature
• R
ated for Full −55°C to +150°C R
ange
• Suitable for R
emote Applications
• Low Cost Due to Wafer-Level Trimming
• Operates from 4 to 30
• Low Self-Heating, 0.08°C in Still Air
• Nonlinearity Only ±¼°C Typical
• Low Impedance Output, 0.1 Ω for 1 mA Load
21. MOISTURESENSOR
• Soil moisture sensor measure the
water content in soil.
• This basic cheap soil moisture sensor
consists of two probes (the metal
rods)held apart at a fixed distance
by some insulating material.
22. OUTPUT OF THESENSORS
T
emperature sensor:
• If the temperature exceeds beyond the limit set then a fan will be automatically switched
ON as a coolant to reduce the temperature.
• Whenit reachesthedesired temperature thefan will be switchedOFFautomatically with the
help of a relay.
• But if the temperature decreasesbellow the optimumtemperature a bulb as a heater will be
switched ON to set the temperature within the desired range.
Light sensor:
• Light sensor sensethe light and set an optimum light in the greenhouse for the plants.
• An artificial light will be switched ON automatically by the light sensorwith the help of relay
if there is insufficient light for the plants in the greenhouse
• And the light is switched OFFautomatically when the plants get sufficient light from the sun.
23. Moisture sensor:
• Soil moisture sensor check the water present in the soil.
• If there isnot proper water in the soil then moisture sensor sends signal to the water
pumpwhichasa result pumpsupthewater from the tank and provide sufficient
amount of water to the soil.
• When the sensor sensesthe threshold value of water level in the soil it automatically
turn OFFthe pump.
Humidity sensor:
• Humidity sensor is used to check the humidity of the air in the greenhouse.
• If the humidity exceeds the limit set then an exhaust fan will be switched ON with the
help of relay to throw the humidair outof the greenhouseto maintain the suitable
environment for the plants.
25. RESULTS/CONCLUSION
Temperature, Heat, Moisture and Light Sensors are the four main sensors used in
the project which give the exact value of temperature, heat, moisture and light
respectively. Thesesensorsgive thecorrect result according to the plant's
condition. Theseresults can be seen on theLCDscreen presenton theproject
and on a INTERNET WEBSITE.
