A VLC Enabled Indoor Navigation System for Visually Impaired People

Abstract-The WHO committee broadly estimated that about 10% of the world population is disabled. India is now been a home to the world’s largest number of blind people. In an entire world there are 37 million people across the globe who are blind over 15 million are from India. In order to help blind people, Nowadays as our modern technology is developing people use a huge number of data to accomplish their work through wire or wireless network. In order to make easy transmission of data a new technology, Li-Fi has been evolved, where it transmits a data through LED lights in such a way that it is undetectable to human eyes. Li-Fi is a unique technology which is used in progression with WIFI (wireless fidelity) technology.

Keywords:–Wireless communication, Li-Fi, Led lights, Wi-fi.

INTRODUCTION

Localization is one of key techniques that gain the increasing attention of researchers recent years. The location information, especially the indoor location, is important for navigation systems, heating and air conditioning systems, illumination adjustment, humidity control, robot service, and so on. Although the outdoor localization has already been well-developed using Global Positioning System (GPS), using GPS for indoor location sensing is difficult due to the poor coverage of satellites in indoor environments. To determine the indoor locations of mobile users, a number of techniques have been proposed and studied, most based on triangulation, fingerprinting, scene analysis, and proximity. The goal of this work is to allow the visually impaired persons navigate independently in the indoor environment. Conventional navigational systems in the indoor environment are expensive and its manufacturing is time consuming. The visually impaired are at considerable disadvantage as they often lack the information needed while passing obstacles and hazards. They have relatively little information about land marks, heading and self-velocity information that is essential to navigate them successfully through unfamiliar environments. In this modern world providing security to each and every human being in life gains a major consideration. Everyone has realized the need to secure themselves against hazards and unauthorized dealings.
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