Indoor Navigation using Li-Fi & IoT Technologies

While visiting huge business establishment like big institutions and giant hospitals people are generally unaware of buildings architecture, basic features and also find it difficult to navigate. People visiting such establishments are baffled in amidst of throng to reach out for indoor destination they are looking for, where the conventional GPS fails to operate. An indoor navigation system which utilizes Light Fidelity technology and Internet of Things has been proposed. This technology makes use of the light fixtures in a building and capable of guiding the user to his/her destination through a mobile application. Li-Fi is a wireless short range visible light communication which used visible light spectrum to transmit data. It cannot pass through opaque objects and requires line of sight. These properties of Li-Fi ensure that it provides accurate positional information. In a Li-Fi system LED acts as transmitter and a light sensor acts as the receiver. The LEDs are provided with unique positional information which is transmitted to the receiver when it comes in the range of the transmitter. From the receiver this data is saved in cloud and an android application taps this data and represents the position of the user in a map and further guides to his/her destination. This system ensures a hassle-free experience for the user in an indoor environment.