Automatic Car Theft Detection System Based on GPS and GSM Technology

An efficient automotive security system is implemented for anti-theft using an embedded system integrated with Global Positioning System (GPS) and Global System for Mobile Communication (GSM. System presented has Two types of tracking, one is online tracking with GPS system can only receive the vehicle location information from satellites and other is offline tracking. GSM system is installed in the vehicle for sending the information to the owner of the vehicle. The preventive measures like engine ignition cutoff is installed in the vehicle which is controlled using user or owner GSM mobile. The owner can lock or unlock his/her vehicle with the help of SMS. The system is implemented on general purpose printed circuit board (PCB) Using Arduino.


INTRODUCTION
Vehicle tracking systems were first implemented for the shipping industry because people wanted to know where each vehicle was at any given time. These days, however, with technology growing at a fast pace, automated vehicle tracking system is being used for car theft detection which tracks and displays vehicle's locations in real-time. GPS is a real-time satellite navigation system for three dimensional position determination. The Global System for Mobile Communications (GSM) is the second-generation digital cellular mobile network. Due to its wide availability, it is chosen as the medium for transfer of location information.
The simple and inexpensive Short Message Service (SMS) allows users to send up to 160 characters. System presented here incorporates the development of in-vehicle tracking device to locate the coordinates of the vehicle stolen, which are then plotted on the Google map application to get the exact and accurate location. Also the developed system can switch-off the ignition of engine with the help of SMS.

Design of System
This project is primarily designed for car theft detection in which arduino, GSM module and GPRS are used. Arduino is used as the controlling unit of whole process. Whenever the car is stolen and forcefully started input signal (Push button in our case) will be send to the arduino. Arduino which is connected to the GSM will send an alert SMS to the owner, mentioning the latitude and longitude coordinates of the location using GPRS module. The owner will receive a short message sent by GSM module as soon as the car is stolen and forcefully started, then he/she can request the location of the vehicle via SMS. The message will show the coordinate of latitude and longitude of the location. To address the limitations of existing vehicle tracking/alarming systems, we presented an anti-theft system mainly based on GPS, GSM and Google map application to provide better service and cost effective solution for users. Brief detail represents the scheme of implemented system. Literature survey Literature review reveals that many people worked for the security system of vehicle to avoid theft. Present day technological developments have been studied and tabulated in table below. It was found that people worked for GPRS, GSM, GPS, IOTs & web etc along with biometric sensing system. All such anti-theft modules are even available in hiend vehicles. Here our approach is to design a cost-effective anti-theft system for low range vehicles.

IJTSRD23867
International Journal of Trend in Scientific Research and Development (IJTSRD) @ www.ijtsrd.com eISSN: 2456-6470 Page: 690 Papers followed for the implementation of the project are tabulated in the

GPS Module
The global positioning system is a satellitebased navigation system consisting of a network of 24 orbiting satellites that are eleven thousand nautical miles in space and in six different orbital paths. The satellites are constantly moving, making two complete orbits around the Earth in just under 24 hours. The orbital paths of these satellites take them between roughly 60 degrees North and 60 degrees South latitudes. Arduino GND -> Connect to Ublox Neo 6M pin "GND" Arduino 5V-> Connect to Ublox Neo 6M pin "VCC"

Circuit Diagram
Circuit diagram shows the connection and interfacing of Arduino Nano board with GPS module, GSM module, relay and motor. respectively send back the co-ordinates of the location to the latter. This further these co-ordinates in turn are passed to the GSM which will send them to the owner. This cycle is repeated after every 10 seconds. In response to the warning owner may reply to the text message that is STOPED. Which will be received by GSM and further transmitted to arduino. Then arduino will stimulate the relay that is connected to 5V supply of arduino and will turn engine OFF.

Software development
The software of the project is based on the flow chart in figure 3.4. If vehicle is forcefully ignited then automatically turn on anti theft detection system. On the other hand, If vehicle is started in authorized way feedback system automatically disables the anti-theft detection system. When vehicle started forcefully a warning message is delivered to registered mobile number as "Car Started". Owner has access to stop the vehicle by sending the message "Stop" in relay and GPS enable the Arduino to send location coordinate. GPS attached to the arduino enable GSM to send the live coordinates of the location in every 10 second. These coordinate when used in Google map help to locate the exact position of the vehicle

RESULT
This proposed project model is tested by forcefully starting the vehicle as in case the vehicle is stolen. The results obtained are as per expectations of the project designed. As soon as the car is forcefully started by the unauthorized person, theft detection system kicks in and the owner gets the SMS within 15 to 20 seconds. There may be slight delay, if any due to mobile network. Central arduino sends signal to control section in real time.
. Figure 4.1: Working model of car theft detection system As soon the car is forcefully started by the unauthorized person which is represented by push button start on the project, Arduino initializes the GSM and GPS modules.
Firstly. The alert SMS is received by the owner whose mobile is stored in arduino programming.  After receiving the alert message from the theft detection device, the user responds via 'STOPED' message and after receiving the response from the owner mobile, the GPS and GSM modules keeps tracking and sending the updated location coordinates every 10 seconds to the owner mobile number.

CONCLUSIONS
The proposed project is a low cost, intelligent and easy to install for theft protection. This automatic car theft detection system will alert the user about unauthorized access and then help to locate the vehicle. The vehicle-tracking device provide the user to know his/her vehicle location in real time. The product designed is user-friendly anyone with a little knowledge of smartphone can use this system. It is easy to install the system in the vehicle and it requires very low maintenance. The coordinates received shows the correct location on the Google map. Also, the size of the device is compact since the GSM and GPS modules are not present as separate module.