Assistive Navigation System for Visually Impaired and Blind People: A Review

Abstract

The emergence of modern technologies in healthcare systems like the Internet of Things, Wireless Sensor Network, Machine Learning, etc. has ameliorated the cognitive abilities of humans. The increased accessibility of healthcare data and the exponential growth of advanced analytics can be attributed to the innovative amalgamation of these technologies. These technologies have adaptive and self-correcting capabilities to enhance accuracy depending on the information. Assistive technology enables independence and attainment of quality of life for blind and visually impaired people. With the support of guided navigation tools, assistive technologies aid the people with the facility to move across inside as well as the outside environment. The major concern of a visually challenged and blind person is to live a life with quality and safety. This study contributes information about distinctive wearable and portable assistive tools and devices which are designed to provide support to visually impaired people. Also, it was revealed that traditional navigation devices lacked a few features that are crucial for independent navigation. To overcome those navigation deficiencies, IoT technology is exploited to provide better solutions. Global Positioning System (GPS) tracker can assist to discover several opportunities in numerous areas such as location detection, mapping, healthcare, security, etc. Navigation gadgets embedded with sensors have a huge variety of programs and benefits. The major objective of this comprehensive study is to showcase a clearer perspective about the wearable or embedded devices used by visually impaired or blind persons.