Nowadays most of the people have cars for daily commuting, thanks to easily available loans with variety of instalment options. With explosive growth of sales in auto sector, traffic management and parking are now two major problems especially in metropolitan cities. Leave aside the traffic problem, parking has become a great issue whether at office premises or home. One may not always find place at a parking spot and may need to manage by parking the car anywhere space available. This has lead to another problem of car theft. One’s car remains safe in a parking lot, but when parked to some distant spot, it is all vulnerable to be damaged or stolen by mischievous elements. There comes central locking system, but it only protects one’s precious vehicle from theft and not any intentional damage.
In this project, an ATMega8 based Car Anti Theft and Security System has been designed which can be installed along with the Central Locking Systems. The embedded system designed in this project equips the user with a remote car monitoring device which by default work as a digital clock and is capable of alerting the user if any mischievous element tries to damage car, try to break into doors or is somehow able to self-start the car illicitly.
The system involves two embedded device, one which has to be installed in car and other a digital clock which is at the same time a car security alert system. Both devices are built on ATMega8 microcontroller. The installable system has been designed by interfacing GY-61 Accelerometer module which can detect any jerks to the car and HC-12 Bluetooth module that makes possible communicating alert messages to remote digital clock cum car security system. The remote monitor system is built by interfacing RTC-DS1307 and 16×2 character LCD to display alert messages otherwise current date and time. The monitoring device too communicates with the installed embedded system via HC-12 Bluetooth module.
Fig. 1: Prototype of In-Car Embedded Device for Car Anti Theft and Security
Both devices have been designed on AVR ATMega8 microcontrollers and are programmed using embedded C. The code has been written, compiled and burnt to the respective systems using AVR Studio.