Abstract.
Appropriate environmental
conditions are necessary for optimum plant growth, improved crop yields, and
efficient use of water and other resources. Automating the data acquisition process
of the soil conditions and various climatic parameters that govern plant growth
allows information to be collected at high frequency with less labor
requirements. The existing systems employ PC or SMS-based systems for keeping
the user continuously informed of the conditions inside the greenhouse; but are
unaffordable, bulky, difficult to maintain and less accepted by the
technologically unskilled workers.
The objective of this
project is to design a simple, easy to install, microcontroller-based
circuit to monitor and
record the values of temperature, humidity, soil moisture and sunlight of the natural environment that are continuously
modified and controlled in order optimize them to achieve maximum plant growth
and yield. The controller used is a low power, cost efficient chip manufactured
by ATMEL having 8K bytes of on-chip flash memory. It communicates with the
various sensor modules in real-time in order to control the light, aeration and
drainage process efficiently inside a greenhouse by actuating a cooler, fogger,
dripper and lights respectively according to the necessary condition of the
crops. An integrated Liquid crystal display (LCD) is also used for real time
display of data acquired from the various sensors and the status of the various
devices. Also, the use of easily available components reduces the manufacturing
and maintenance costs. The design is quite flexible as the software can be
changed any time. It can thus be tailor-made to the specific requirements of
the user.
This makes the proposed
system to be an economical, portable and a low maintenance
Block Diagram.
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