1

GSM BASED HOME AUTOMATION

GROUP-14

GUIDE:SHIJIN P.V

2Overview

Home Automation

GSM base home automation

Basic working

Motivation

Problem definition

Objectives

Scope

Cost estimation

Time shedule

Pros & cons

Conclusion

3Home Automation

Why we need it…..?

Forgetting to switch off devices while leaving home.

Needs arising to operate devices while we are not able to access them physically.

Implementation……

Devices are connected to an embedded system.

The embedded system is programmed to control the devices according to commands from a remote.

4GSM base home automation

Home Automation –A Microcontroller System

Remote –A GSM Mobile Phone

Commands –SMS

5Basic

Working

User sends commands via SMS

Mobile at the system transfers it to Micro controller

The Microcontroller operates the Devices according to the command received.

6Motivation

The motivation is to facilitate the users to automate their homes having ubiquitous access. Thesystem provides availability due to development of a low cost system. The home appliances con-trol system with an affordable cost was thought to be built that should be mobile providing re-mote access to the appliances and allowing home security.

7Problem definition

One of the limitations about this is non availability of power because the power system makes use of power supply from Power Holding Company of Nigeria (PHCN). Though this is a major problem but with thought about alternative source of power, it is a problem that will soon be a by-gone. Also another limitation noticed in the above work is the failure of network or busy network which will make the phone embedded in the system not to be available when called.

8Objectives

To co-ordinate appliances and other devices through Short Message Service(SMS).

To effectively receive and transmit data via SMS To eliminate the need of being physically present in

any location for tasks involving the operation of appliances within a household/office.

Minimize power and time wastage

9Scope

The scope of our project “GSM Based control system” is immense.

The future implications of the project are very great considering the amount of time and resources it saves. The project we have undertaken can be used as a reference or as a base for realizing a scheme to be implemented in other projects of greater level such as weather forecasting, temperature updates, device synchronization, etc. The project itself can be modified to achieve a complete Home Automation system which will then create a platform for the user to interface between himself and the household

10Pros & cons

Pros

Global Range

Low Cost

Low Power Requirement

Cons

Delays in mobile networks

Need of a mobile phone entirely dedicated for the system

11 Expected outcome

A single M2M controller module that can perform the following:

a. Receive instructions and commands from a messaging device

b. Monitor a device status from an electronic interface

c. Control target devices through an electrical interface

A list of approved message input commands that the device is capable of executing

12Cost estimation

S.No. List of components

Quantit

y Cost/Unit Total Cost

        (In Rs.)         

1. AT89C52 1 150 150         

2. LM7805 1 25 25         

3. LM7812 1 25 25         

4. Nokia3310 1 2000 2000         

5. Max 232 1 35 35         

6. LM324 1 35 35         

7. LCD 1 500 500         

8. Potentiometer 2 10 20         

9. IC Holders 1 40 40         

10. Connectors 10 10 100         

11.Step down transformer 1 200 200

         

12. Connecting wires   40 40         

13. Matrix Board 2   120         

14. Reset switches 2 5 10         

15. Resistors 10 5 50         

16. LED 5 5 25         

17. Capacitors 10 5 50         

18. LM35 1 75 75         

19. Diode IN4001 4 2 8         

20. Zener Diode 2 3 6         

21. Relay 3 100 300         

      Grand Total: Rs. 3814         

13Time shedule

2013-20 14

ID Task Name Start Finish Duration Nov Dec Jan Feb Mar

1 Feasibility Study 03 Nov 2008 13 Nov 2013 10 days

2 System Specification 11 Nov 2008 26 Nov 2013 15 days

3 Requirement 04 Nov 2008 5 Dec 2013 31 days

Analysis

4 Design 05 Dec 2008 9 Jan 2014 35 days

5 Documentation 03 Nov 2008 05 Mar 2014 95 days

6 Testing 15 Jan 2008 08 Mar 2014 53 days

7 Implementation 18 Feb 2008 09 Mar 2014 19 days

14

Conclusion In this era when the number of mobile phone users

growing at a highrate,this system makes use of the mobile networks to provide the users with a simple and cheap Home Automation System.

15

THANK YOU