Li-Fi in Vehicle Communication for Traffic Noise Reduction

Li-Fi abbreviated as Light Fidelity emphasizes on the idea of transmission of any images or audio/video signals with the help of visible light. Using this very concept, in the past few years, various application-oriented industrial sectors have evolved tremendously or are on the verge of evolving. One such domain that has taken into consideration the concept of Li-Fi and put it into practice is vehicle communication. Li-Fi has successfully made its way in smart vehicle communication resolving problems like road accident, traffic control among many. Working on the same domain as vehicle communication, we intend to address another rigorous problem associated with vehicles that has a huge impact on human lives, that is, noise pollution. Horns built inside every car, when honked, creates excess noise and leads to cacophonous environment. Thus, adhering to the ideology of Li-Fi, we, in this project, make an effort to replace the harsh honking with a simple sound signal that will travel through LED based headlights, that is to say, sound signal will be superimposed on light signal. At the receiver section, a solar panel, speaker and an amplifier is used to obtain the amplified version of original input sound signal. The two incredible properties of Li-Fi due to which the entire proposed system becomes reliable are, one, Li-Fi uses visible light as a source whose availability is in abundance and is harmless and another, the signals received remain confined within the system itself.