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Locking and unlocking of theft vehicles using gsm
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LOCKING AND UNLOCKING OF THEFT VEHICLES USING
GSM
(Theft Control System)
ABSTRACT
Avoiding Vehicle Theft is making buzz in present automobile industry. Design and
development of a theft control system for an automobile, can be achieved by making use of
GSM feature of mobile phone. The developed system makes use of a GSM that is embedded
in the vehicle with an interfacing to Engine Control Module (ECM) through Controller,
which is in turn, communicated to the ECM.
The vehicle being stolen can be stopped by using mobile phone and this information
is used by the owner of the vehicle for future processing. The owner sends the message to the
mobile (GSM) which is embedded in the vehicle which has stolen which in turn controls the
vehicles engine by locking the working of the engine immediately. The developed system
accepts the message and broadcasted to the Vehicle Network through Controller Bus. The
engine can be unlocked only by the owner of the vehicle by sending the message again. The
goal behind the design is to develop security for vehicles and embedded system to
communicate with engine of the vehicle.
This project uses regulated 5V, 750mA power supply. 7805 three terminal voltage
regulator is used for voltage regulation. Bridge type full wave rectifier is used to rectify the
ac output of secondary of 230/18V step down transformer.