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GSM BASED HOME AUTOMATION

YUVARAJA.R B.E ECE

REG NO : 6109314

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NAME : YUVARAJA.R

REGISTER NUMBER : 6109314

LANGUAGE : EMBEDDED C

INTERNAL GUIDE NAME : THAMIL SELVAN.M

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ABSTRACT

Design a system that allows users, upon authentication, to remotely control and monitor home appliances using a Gsm-modem.

GSM BASED HOME AUTOMATION

EXISTING SYSTEM

Human can power on the motor ,light ac etc. But power off some due to memory loss they cannot power off the applications.

Some time advanced power on of applications is not possible. So human can power on applications manually.

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PROPOSED SYSTEM

To overcome the existing problem, we construct a model the project is a clear indication of a multi purpose control done via sms reducing the manual efforts and time required while paying individual attention for controlling each device.

At time night are automatically using sensors it will saves time and energy of the individual.

The system requires less design and implementation cost. For handicapped people it may be really not entertaining to involve much in manual work and this system helps them to locate themselves in a place and operate the lights of their room, switch on the fan etc.

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Project in Action – Entire System

GSM BASED HOME AUTOMATION

LDR

COMPONENTS DESCRIPTIONS

GSM Modem:

GSM Modem receives the signal and converts the data and pushes instruction to microcontroller. MAX232 Circuit:

It is an interface between GSM Modem and Microcontroller. AT89C51 Controller:

This is the heart of the control system which control the device(s) based on the SMS. ULN 2003 to Driver:

It is power driver circuit that controls the relay(s). Relay:

The Relay is connected to the output device(s). LCD Display:

This displays the status of the device. LDR:

Light dependent resistor using light intensity dependent to lights on Embedded C Language:

The software is used to program the MICROCONTROLLER Controller. Controlled Device:

The wide variety of home appliances and such as Lights, Fans, etc. can be connected.

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EVOLUTION OF GSM

GSM is a global system for mobile communication GSM is an international digital cellular telecommunication. The GSM standard was released by ETSI (European Standard Telecommunication Institute) back in 1989. The first commercial services were launched in 1991 and after its early introduction in Europe; the standard went global in 1992. Since then, GSM has become the most widely adopted and fastest-growing digital cellular standard, and it is positioned to become the world’s dominant cellular standard.

1G Analog Communication 2G Digital Communications 2.5G GPRS 2.75G EDGE 3G Enhanced feature of Video call 4G High-speed Wireless Broadband

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SMS IN GSM

SMS stands for Short Message Service. It is a technology that enables the sending and receiving of message between mobile phones.

SMS first appeared in Europe in 1992. It was included in the GSM (Global System for Mobile Communication) standards right at the beginning.

Later it was ported to wireless technologies like CDMA and TDMA. The GSM and SMS standards were originally developed by ETSI. ETSI is the abbreviation for European Telecommunication Standard Institute.

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COMMANDS USED IN GSM MODEM

AT <ENTER>

AT+CMGF=1 <ENTER>

AT+CNMI=1,2,0,0,1 <ENTER>

AT+CMGR=2 <ENTER>

AT+CMGD=2 <ENTER>

 AT+CMGS="+9791260935" <ENTER>

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MICRO CONTROLLER AT89C51RD2BN

Features:   Compatible with MCS-51® Products 8K Bytes of In-System Programmable (ISP) Write/Erase Cycles 4.0V to 5.5V Operating Range Fully Static Operation: 0 Hz to 33 MHz Three-level Program Memory Lock 256 x 8-bit Internal RAM 32 Programmable I/O Lines Three 16-bit Timer/Counters Eight Interrupt Sources Full Duplex UART Serial Channel Low-power Idle and Power-down Modes Interrupt Recovery from Power-down Mode Watchdog Timer Power-off Flag11 GSM BASED HOME AUTOMATION

SMS RESPONDING HARDWARE CONTROL COMMANDS LIST

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ADVANTAGES

Global Range

Low Cost

Low Power Requirement

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DISADVANTAGES

Delays in mobile networks

Need of a mobile phone entirely dedicated for the system

CONCLUSION

Recent development in Science and Technology provide a wide range of scope of application of reduction power wastage.

This project is useful in the domestic as well in the industrial applications. It has the scope to enhance several devices by appropriate add-on circuits.

Even the Vibration , Glass Break, Fire or Smoke detector can be configured to report to the user. The cost involved is moderate and the status can be sent to the user(s) for the decision

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FUTURE ENHANCEMENT

In this project in future we can add a multimedia camera to see what is going inside the home by sitting in office or somewhere.

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THANK YOU