IJREE- Volume 2 Issue 2 Paper 2


Author’s Name : Janani B | Umabharathi M | Bhuvanesan P

Volume 02 Issue 02  Year 2015  ISSN No:  2349-2503  Page no: 7-10


Abstract – Vehicle collision prevention system creates an environment of comfort for the drivers and the pedestrians. It implements the use of mobile computing technology for setting up the speed limit for the vehicle based on the user convenience. As mobile devices have become an inseparable part of our life, it also helps in the life saving process more seamlessly to our everyday life. It enables the main user to monitor the vehicle’s speed not exceeding the set speed. The Peripheral Interface Controller (PIC) is interfaced with GSM and Relay. The intrinsic function of micro controller begins in setting up the speed limits and stimulating the control process. The two control processes are controlling the speed of the vehicle and accident prevention. The main user will assign the speed of the vehicle up to a maximum speed of 60 km/hr through GSM, which in turn will send a message stating that speed limit is set. If the person driving the vehicle exceeds the set speed, the vehicle will be stopped automatically. When the maximum speed is reached, the front side ultrasonic sensor in the vehicle will get actuated. The sensor which in turn will detect the obstacle and sends the signal to microcontroller. The controller gives the command signal to stepper motor and gear motor through relay driver and motor driver respectively. Thus the vehicle gets slow down to a minimum speed.

Keywords – PIC Micro controller; RS232; MAX232; Ultrasonic sensor GSM