An Intelligent System to Avoid Collision in Vehicle based on Can Protocol

Driver and passenger safety are one of the prime concerns in a modern day vehicle. Alarming statistics of accidents and increased number of vehicles on road demands for an intelligent safety mechanism that helps the driver in handling immediate precarious situations like sudden probability of a collision. The work proposes a mechanism that not only computes the deceleration of vehicle due to braking and displays the braking intensity through an array of LED but also involves an emergency braking system and communicate it to the vehicles that are following it in lambertian [1] range of IR transmitter module to avoid any collision pre-hand, due to any situation that may arise and cause immediate deceleration of the vehicle ahead. An Arduino UNO microcontroller will be interfaced with an accelerometer and ultrasonic sensor that senses the deceleration levels, a LED array to display the braking intensity and an IR transceiver module for inter-vehicle communication that would transmit pulses whose frequency is modulated proportional to the braking intensity level. To take decision and automatically control the motion of the following vehicle, a collision avoidance system consisting of Arduino UNO microcontroller is implemented that actuates the brake control system in case of drastic situations. All the communications between different systems will be done through the common CAN Bus which will help us incorporate this system into automobiles thereby reducing time to market.