High-Precision Indoor Tracking Using Ultra-Wide Band Devices and Open Standards

Abstract

Indoor tracking requires precise localization with the use of short-range radio technology. Tracking the position of humans in an indoor environment is accomplished using Ultra Wide Band communication technology to achieve high accuracy. Ultra Wide Band (UWB) assists in positioning a user in an indoor environment. UWB technology-based devices obtain the position and monitor the movements of a human in an indoor environment. Ultra Wide Band (UWB) technology positions a user with x, y coordinates obtained from timespan and frequency of communication. Positioning with UWB technology is implemented with transit time methodology—Time of Flight (ToF) to measure the running time of light between the tag and anchors. UWB based positioning of an object requires 3 fixed nodes (anchors) to implement the trilateration algorithm. The direct line-of-sight between the tag and nodes is required to achieve high accuracy. UWB technology uses the Deccawave DWM1001C module to identify the location of a user. The system locates the position values of a user in x, y coordinates using UWB technology with the DWM1001C module in Matplotlib and draw the actual location with visualizations using Grafana.