DESIGN
AND DEVELOPMENT OF SMS BASED CAR ENGINE CONTROL SYSTEM TO PREVENT CAR THEFT
USING GSM MODEM
TECHNICAL SPECIFICATIONS:
Title of the project : Design and Development of SMS Based Car
Engine Control System to Prevent Car Theft Using
GSM Modem
Domain : Embedded Systems, Wireless
Communication
Software : Embedded C, Keil, Proload
Microcontroller : AT89S52
Power Supply : +5V,
500mA Regulated Power Supply
Display : LED
5mm, 16 X 2 LCD
Communication Device : GSM
Modem
Applications : Automotive
Security
ABSTRACT
Introduction:
Microprocessors are commonly referred to as general purpose processors
as they simply accept the inputs, process it and give the output. In contrast,
a microcontroller not only accepts the data as inputs but also manipulates it,
interfaces the data with various devices, controls the data and thus finally
gives the result. As everyone in
this competitive world prefers to make the things easy and simple to handle. In
this project we deal with the security of the vehicle. When ever the GSM modem
receives the message from the particular mobile then the car engine gets
stopped .The mobile number from which the message is being sent should be the
authorized mobile number. The authorized mobile number should be feeded into
the system and the number is stored in the EEPROM.
Need & importance:
Security
is prime concern for every one. Nowadays all the automotives are equipped with
auto cop systems. Even though, the thieves are breaking the barriers and steal
the vehicles.
This
project is the right solution for this problem. Using this project, one can
control his vehicle’s car engine by means of an SMS.
There are
various electronic equipment available for remote operation of device control. However,
the main disadvantage of these systems is that they can be operated only from short
ranges and also less reliable. Thus, to overcome the above drawbacks, we are
using one of the wireless communication technique i.e., GSM (Global System for Mobile communications) is a digital cellular
communications system which has rapidly gained acceptance and market share
worldwide.
Block Diagram:
Description :
AT89S52 is the
heart of the project. A GSM modem is interfaced to microcontroller. This modem
receives the messages from control mobile and sends as input to MCU. The MCU
verify for authentication of the number and, if the number is authorized,
engine control will be taken place, EEPROM is interfaced to this controller to
save the engine position at every instant. This engine position information
will not be deleted even in power failure conditions. 16X2 LCD is
interfaced to display user-required information. In this project TRAIC
is used as load controller (as a switch), MOC3021 used as a Triac driver.
GSM
network operators have roaming facilities, user can often continue to use there
mobile phones when they travel to other countries etc….
This project uses regulated 5v, 750mA power
supply. 7805 and 7812 three terminal voltage regulators are used for voltage
regulation. Bridge type full wave rectifier is used to rectify the ac output of
secondary of 230/12v step down transformer.
Advantages:
- Vehicle can be controlled from any where
- Mobile number can be changed at any time
- Engine status will not be lost in power failure condition
Scopes for Advancements:
- GPS modem also can be interfaced to this unit to trace and locate the geographical information of vehicle place
Applications:
- Automotives Security
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