Ultra Wideband Positioning for Intelligent Security Systems

Abstract

his paper details the use of UWB positioning as a means to track the movements of individuals in real time. The work outlined here uses techniques to extract, analyse and classify positional data as part of an intelligent system designed to show the interactions between individuals and their environment. It is envisaged that such an application would be used in large public infrastructures such as an airport. Advancements in UWB technology allow for the accurate and reliable positioning of a RFID tag within an indoor environment. UWB positioning systems are already being used to provide real-time feedback information on a tag's movement. An example of such an application can be seen in the work of ref 1. UWB positioning provides the means to track the movements of an individual by the use of a RFID tag. The relatively small size and weight of an UWB transmitter together with its low power consumption makes this a realistic possibility. With the ability of real-time tracking, UWB also creates the opportunity to monitor and classify behavioural patterns of people through motion. The advantage of using the UWB positioning is that it provides a non-invasive means of tracking. It could be thought of as an electronic ver-Figure 1: UWB hardware system design.

Development of a Virtual Gait Analysis Laboratory

“…The simulated technique could then be verified by testing subjects fitted with wireless accelerometers attached to wrists, ankles or hips. Previous studies have suggested monitoring people in public spaces by fitting them with an Ultra wideband (UWB) radio sensor, for example, as an electronic biometric identification and location ticket at an airport, [12]. UWB positioning is an emerging technology with many potential benefits for security.…”