Towards blind user's indoor navigation: a comparative study of beacons and decawave for indoor accurate location

TL;DR

This paper compares the accuracy of beacon-based and Decawave indoor localization systems for aiding visually impaired users, using real-time processing and analyzing Euclidean distance errors.

Contribution

It provides a direct performance comparison of beacon and Decawave systems under identical conditions for indoor navigation for the visually impaired.

Findings

Decawave system shows lower localization error than beacons.

Both systems achieve real-time, continuous indoor positioning.

Accuracy is critical for navigation assistance to visually impaired users.

Abstract

There are many systems for indoor navigation specially built for visually impaired people but only some has good accuracy for navigation. While there are solutions like global navigation satellite systems for the localization outdoors, problems arise in urban scenarios and indoors due to insufficient or failed signal reception. To build a support system for navigation for visually impaired people, in this paper we present a comparison of indoor localization and navigation system, which performs continuous and real-time processing using commercially available systems (Beacons and Decawave) under the same experimental condition for the performance analysis. Error is calculated and analyzed using Euclidean distance and standard deviation for both the cases. We used Navigine Platform for this navigation system which allows both Tri-lateration as well as Fingerprinting algorithms. For calculating location we have used the concept of Time of Arrival and time of difference of arrivals. Taking into concern about the blind people, location is important as well as accuracy is necessity because small measurement in the walk is important to them. With this concern, in this paper, we are showing the comparative study of beacons and Decawave. The study and the accuracy tests of those systems for the blind people/user's in navigating indoor are presented in this paper.