Design of Ultra Low Cost Cell Phone Based Embedded System for Irrigation----ieee

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www.svsembedded.com SVSEMBEDDED [email protected], CONTACT: 9491535690, 7842358459

DESIGN OF ULTRA LOW COST CELL PHONE BASED EMBEDDED SYSTEM FOR IRRIGATION
ABSTRACT
AIM:
The main aim of this project is to design low cost cell phone based Embedded System for Irrigation.

PURPOSE:
The purpose of this project is to provide cell phone based embedded system for irrigation to reduce the manual monitoring of the field and get the information in the form of SMS.

BLOCK DIAGRAM:
POWERSUPPLY

TEMPERATURE SENSOR SOIL SENSOR

A D C

ARM7 LPC2148
MICROCONTROLLER

LCD LCD

WATER LEVEL SENSOR

GSM MODEM

M A X 2 3 2

MOTOR DRIVERS

MOTOR

www.svsembedded.com SVSEMBEDDED [email protected], CONTACT: 9491535690, 7842358459

www.svsembedded.com SVSEMBEDDED [email protected], CONTACT: 9491535690, 7842358459 POWER SUPPLY:

• Step Down • Transformer

Bridge Rectifier

Filter Circuit

Regulator section

DESCRIPTION:
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. This project is developed mobile phone based remote control application for induction motor-pump based irrigation in agriculture. In order to prevent dry running of motor and allow automatic restart of motor when sufficient water level is regained. Whenever water falls below LL level, microcontroller switches OFF the motor and sends SMS indicating empty well (dry running) conditions. The microcontroller switches ON the motor again when ever water rises beyond HL level and sends sms indicating resumption of task. Using analog voltage inputs for LL and HL levels increases the flexibility of system by just incorporating different threshold levels in program for different soil conditions. In both conditions (water level sensor) protection for induction motor. However, in order to ensure maximum reliability, one temperature sensor is mounted on body of motor, to measure ambient temperature whenever temperature difference exceeds specified safety limit, signal is sent to switch OFF pump along with error indication to LCD display and conveying SMS to user cell phone to indicate probable fault occurrence. We are using soil moisture sensor placed at the plants to know how much water content is present in the field

www.svsembedded.com SVSEMBEDDED [email protected], CONTACT: 9491535690, 7842358459

www.svsembedded.com SVSEMBEDDED [email protected], CONTACT: 9491535690, 7842358459
Generally frequent power cuts and insufficient rains at various stages of growth are one of major causes of losses to farmers. Many farmers use induction motor pumps to irrigate their farms from wells. In this application, GSM modem receives any incoming SMS message is directly routed to micro-controller and any outgoing text message is directly sent by microcontroller to designated cell phone number without being stored in control system cell phone memory. As a result, phone memory is not in undated with messages in spite of many messages being transferred.

OUTPUT WINDOW

RECEIVER SECTION:

www.svsembedded.com SVSEMBEDDED [email protected], CONTACT: 9491535690, 7842358459

www.svsembedded.com SVSEMBEDDED [email protected], CONTACT: 9491535690, 7842358459 HARDWARE USED: • ARM7 LPC2148 CONTROLLER • MOTOR • POWER SUPPLY • GSM MODEM • LCD • ADC • LM35.SENSOR • WATER LEVEL SENSOR • SOIL SENSOR • DRIVER IC SOFTWARE USED: • KEIL UVISION • EMBEDDED ‘C’ • EXPRESS PCB • EXPRESS SCHEMATIC

RESULT:
By using this project we can implement Ultra low cost cell phone based embedded system for Irrigation.

www.svsembedded.com SVSEMBEDDED [email protected], CONTACT: 9491535690, 7842358459

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