Prevention of Road Accidents by Interconnecting Vehicles Using the Concept of Light Fidelity

According to the World Health Organization, more than 1.25 million people die every year as a result of road traffic accidents. One of the main reasons of the accidents as analysed is due to exceeding the limit of driving speed. Our objective is to present an efficient, practically feasible and low-cost Light-Fidelity (LI-FI) based solution to limit the speed of a vehicle automatically, thereby minimizing the collision. The vehicle continuously monitors the distance of the front vehicle or obstruction using infrared transmitter and receiver and accordingly restricts its maximum speed limit of the vehicle with the help of Electronic Control Unit (ECU) present in the vehicle that checks the flow of fuel into the engine. Li-Fi or light fidelity is a bidirectional and fully networked wireless communications medium which uses light from light-emitting diodes (LEDs) and provides transmission of data through illumination by sending data through a LED light bulb that varies in frequency faster than the human eye can follow. It can provide connectivity within a very large area with more security and with higher data rates and high speed than data that can be transmitted through Wi-Fi, It uses visible light communication or infra-red and near ultraviolet spectrum which works by changing the frequency of the dispersed light. This change in frequency is characterised by a chain of adjoining reactions. By using Li-Fi technology highly reliable vehicle to vehicle communication is possible by transmitting and receiving data through LED head-lights and tail-lights.