AUTOMATIC PLANT IRRIGATION SYSTEM

PROJECT ABSTRACT

Submitted by

AKHIL V KUMARALAN GEORGE THOMASALLEN SIMON PHILIPANANTHU VIJAYANANCY DAVID

ABSTRACTThe project we have undertaken is Automatic Plant Irrigation System. The project is designed to develop an automatic irrigation system which switches the pump motor ON/OFF on sensing the moisture content of the soil. In the field of agriculture, use of proper method of irrigation is important. The advantage of using this method is to reduce human intervention and still ensure proper irrigation.This project is taken up as India is an agriculture oriented country and the rate at which water resources are depleting is a dangerous threat hence there is a need of smart and efficient way of irrigation. In this project we have implemented sensors which detect the humidity in the soil (agricultural field) and supply water to the field which has water requirement. The project is 8051 microcontroller based design which controls the water supply and the field to be irrigated. There are sensors present in each field which are not activated till water is present on the field. Once the field gets dry sensors sense the requirement of water in the field and send a signal to the microcontroller. Microcontroller then supply water to that particular field which has water requirement till the sensors is deactivated again. The sensing arrangement is made by using two stiff metallic rods inserted into the field at a distance. Connections from the metallic rods are interfaced to the control unit. An LCD display is also interfaced to the microcontroller to display status of the soil and water pump In case, when there are more than one signal for water requirement then the microcontroller will prioritize the first received signal and irrigate the fields accordingly.The concept in future can be enhanced by integrating GSM technology, such that whenever the water pump switches ON/OFF, an SMS is delivered to the concerned person regarding the status of the pump. We can also control the pump through SMS

BLOCK DIAGRAM

COMPONENTS LIST

Transformer : Step down transformer (220/12) Voltage Regulator : IC 7805 Op-amp : LM741 Crystal oscillator : 11.0592 M Hz Diode : IN 4007 LED Resistor : 470 ohm (for LED), 8.2 K (for power on reset Ckt.) , 10 K (for sensors) , potentiometer(100K) Capacitor : 1000 u f (for Power supply), 10 u f (reset ckt.) 33p F ( for crystal oscillator) LCD : 16 x 2 Stepper motor : step angle 7.5 degree, +12V Relay : 220V/3-4A Microcontroller : AT89S52 ULN : ULN 2003 Water pump Switches Power cables & ribbon wiresHardware Requirements 8051 series Microcontroller Op amp LCD Relay Water Pump Voltage Regulator Diodes Capacitors Resistors LED Crystal Transistor

Software Requirements Keil compiler Languages: Embedded C or Assembly