In This Paper, an Indoor navigation system is proposed
for persons with visually disability that utilize VLC (Visible Light
Communication) Technology. Using VLC we can provide precise
locational coordinates or directions regarding their journey. Light
Fidelity (Li-Fi) refers to the VLC technology. VLC is based on the
concept that uses visible light as a means of communication
enabling faster flow of information [1]. The principle of VLC is
that it uses light as a medium to deliver high speed
communication. The main idea is to create internal navigation
system for the area to create automatic navigation for the visitor
who are visually challenged. The Li-Fi is preferred over Wi-Fi
because Wi-Fi is nothing but radio-telecommunication which
effective within premises, while Li-Fi is effective for faster
communication in restricted places without any hurdles. The
concept of Li-Fi is used to give the navigation path for visually
challenged person and particularly voice guidance of the walk
way. Headphone is used to give the voice message to such people.
The data is transmitted through the LED light which emits the
visible light and an embedded system accepts from receiver. The
received data is converted into audio format for the blind people.
The suitability of system has been confirmed by means of useful
prototype through a trail with blind person.