27-07-2012, 12:24 PM
SMS Based Remote Motor Starter for Irrigation in Agricultural application
SMS_Based_Remote_Motor_Starter_for_Irrigation_in_Agricutural_application_1.doc (Size: 106.5 KB / Downloads: 53)
INTRODUCTION
Motor Starter for irrigation in Agricultural Applications encompasses lighting, security, telecommunications, access and safety, information and entertainment systems and thermal comfort systems. Besides self monitoring and regulation the Motor Starter for irrigation in Agricultural Applications system will also give auxiliary control to the user to enable him/her to control any application from a remote place.
Such a facility would require a tool that extends access to Motor Starter for irrigation in Agricultural Applications base station controller from his/her premises to anywhere the user might be. This is done through a mobile device making this system truly global.
Commands are sent to Motor Starter for irrigation in Agricultural Applications system through user’ mobile as data through SMS (Short Service Messages) providing a cost effective, reliable far reaching access to the user. The coded SMS is sent to the Motor Starter for irrigation in Agricultural Applications base station controller that receives the messages, decodes the messages, initiates required automation operations and responds to the successful initiations by a reply to the user.
ABSTRACT:
In our design we are implementing a Motor Starter for irrigation in Agricultural Applications and security systems using GSM, GSM is one of the latest mobile technologies using smart MODEM which can easily interfaced to embedded microcontrollers.
Now everything is going to be automated using this technology, using this technology we can access the devices remotely. Using GSM and GPS now we can identify the people, vehicles etc in any where of the world.
In this project there will be sensors inside the industrial, if any body comes forcibly in industrial the sensors output will give information to the system that somebody had came, then it will send the SMS to the owners mobile or make a call to police.
This project may also used in offices, to control the machineries. This system involves two operations; we can control the industrial appliances as well as it will inform us there is any unauthenticated person enters into industrial or office as SMS.
COMPONENTS USED:
Power Supply 5v DC - 7805
Microcontroller - 89C51Atmel
Crystal - 11.0592MHz
MAX232 - Serial Communication
Motor Starter
GSM Transmitter and Receiver (MODEM)
SOFTWARES USED:
Embedded C.
Keil compiler.
WORKING PRINCIPLE:
The device consists of GSM modem, microcontroller, Motor Starter, relays, memory and display. If the user wants to control some devices in his house he/she have to send the SMS indicating the operation of the device and then the system password, while the MODEM embedded with the system microcontroller receives SMS.
The microcontroller will read SMS and check for the password the user had sent with the SMS, the passwords are stored in memory, so the microcontroller will read the password from memory and compares with the message password.
If the password is correct then it will check whether the message is for switch ON or OFF the Motor, According to the received message the controller will switch on / off the relays. The device is password controlled, therefore only the people who know the device password is capable to control the device.
LCD is connected to microcontroller as 4 bit data mode, before displaying anything in LCD Initialization have to do ,so microcontroller will control the LCD initialization and select the data register and command register according to the purpose.
Memory is connected to microcontroller using two pins, it is communicating with the microcontroller through I2C communication. Relay and buzzer is controlled by the microcontroller using single pins, I.e. giving high means device will switch on and vice versa. Sometimes it may be interchange according to the transistor used to drive the device.
APPLICATIONS OF THIS PROJECT:
Home automation
Office automation.
In Industrial automation.
In Agricultural Application
Advantages:
It is very safe and secure to use.
Fast, effective and flawless service.
We can control any appliances remotely.
Highly-reliable and efficient to use.
Disadvantage:
If network busy the delivery of SMS may fail, so it’s difficult to control the appliances.
It is some what complex to design.