Topics: Mobile phone, GSM, Cellular network Pages: 5 (1176 words) Published: April 7, 2013
This project deals with the design & development of a theft control system for an automobile, which is being used to prevent/control the theft of a vehicle. The developed system makes use of an embedded system based on Global System for Mobile communication (GSM) technology. The designed & developed system is installed in the vehicle. An interfacing mobile is also connected to the microcontroller, which is in turn, connected to the engine. Once, the vehicle is being stolen, the information is being used by the vehicle owner for further processing. The information is passed onto the central processing insurance system which is in the form of the SMS, the microcontroller unit reads the SMS and sends it to the Global Positioning System (GPS) module and using the triangulation method, GPS module feeds the exact location in the form of latitude and longitude to the user’s mobile. By reading the signals received by the mobile, one can control the ignition of the engine; say to lock it or to stop the engine immediately. The main concept in this design is introducing the mobile communication into an embedded system. The designed unit is very simple& low cost. The entire designed unit is on a single chip. PURPOSE: The main aim of the project is to design and develop an advanced vehicle locking system in the real time environment. The user can send a STATUS message from his cell phone and as soon as the GSM module gets the message, it will check for the user’s authentication and if found to be valid, it will immediately send the details of the locations like the latitude and the longitude using GPS module. So the user can get to know the exact location of the vehicle. At the same time message will b sent to a personal computer where user can get the exact location of vehicle pointed out on the Google maps. PROJECT DESCRIPTION:

In this paper we present a novel anti theft control system for automobiles that tries to prevent the theft of a vehicle. This system makes use of an embedded chip that has an inductive proximity sensor, which senses the key during insertion and sends a text message to the owner’s mobile stating that the car is being accessed. This is followed by the system present in the car asking the user to enter a unique password. The password consists of few characters and the car key number. If the user fails to enter the correct password in three trials, a text message is sent to the police with the vehicle number and the location tracked using a GPS module. The message is also sent to the owner about the unauthorized usage. Further the fuel injector of the car deactivated so that the user cannot start the car by any means. At the same time a secret lock system gets activated and the unauthorized user gets trapped inside the car and only the owner who is equipped with the key to the secret lock system can deactivate the mechanism. This technique helps in taking fast steps towards an attempt to steal the .The design is robust and simple. WORKING OF THE ANTI-THEFT CONTROL SYSTEM:

When the key is inserted in the key hole the inductive proximity sensor detects the key and triggers the microcontroller. A password check message is displayed on the LCD provided inside the car and at the same time the owner is alerted with a message about the usage of his car. Totally three trials are provided to enter the correct password. If the entered password is incorrect a second electronic lock system gets activated and the doors are locked. An alert message is sent to the police and the owner about the illegal access of his car. With the help of GPS the exact location of his car is found and the key of the second lock system is available only with the owner hence a total control over the vehicle is established.

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