DEVELOPMENT OF SMART IRRIGATION SYSTEM BASED ON CROP WATER REQUIREMENT 2892
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Date
2019-07
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JAU, JUNAGADH
Abstract
Efficient water utilization is the dire need of the present era. Now a day, micro
irrigation system is operated manually which causes lesser efficiency than optimum
due to human error. The actual crop water requirement is judged by automatic or
smart irrigation system and irrigates the field accordingly with optimum efficiency so
the human error can be minimized. Therefore, present study is emphasized to develop
the low cost user friendly smart irrigation controller which can be easily operated
worldwide using web based mobile application and evaluate the developed system for
cotton and groundnut crop. The smart irrigation controller was developed using
Arduino Mega 2560 as a controller, NodeMcu for internet connection, digital flow
meter for water flow measurement, relay for ON/OFF solenoid valve and motor and
LCD for display real time irrigation status. To control and monitor the system
remotely web based mobile application was developed which calculate the crop water
requirement automatically. The correction factor of flow meter was obtained as 0.598
during validation for field condition. Another thing is performance of emitters play a
major role in uniform distribution of water. The hydraulic performance of 8 lph
emitters was tested at operating pressure of 0.75 to 2.00 kg/cm2
. Value of CU, CVm,
EU and DU were obtained as 98.75 %, 0.0149, 97.43 % and 98.06 %, respectively
which falls under excellent and very good category for emitters as per the ASABE
standard at 1.00 kg/cm2
operating pressure. Performance evaluation of the developed
smart irrigation controller was carried out for cotton and groundnut crops with four
different crop growth stages, the results of t-Test for smart irrigation controller were
found non-significant which indicates no difference between calculated and measured
water volume. Hence, developed smart irrigation system can be considered as best for
irrigation. The developed controller is very easy to use, eco-friendly and user friendly
as well as the estimated cost of smart irrigation controller was ₹ 2650.00 which is
very less as compared to other controller available in the market having less features
than the developed controller.