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UWB/BLE Tracking System for Elderly People Monitoring.

Jerzy Kolakowski¹, Vitomir Djaja-Josko¹, Marcin Kolakowski¹

¹Warsaw University of Technology, Institute of Radioelectronics and Multimedia Technology, Nowowiejska 15/19, 00-665 Warsaw, Poland.

Sensors (Basel, Switzerland)

|March 18, 2020

Summary

This summary is machine-generated.

This study introduces a novel elderly tracking system using a hybrid localization algorithm and wireless synchronization. The system enhances safety and well-being monitoring for seniors.

Keywords:

AAL localization systems tracking algorithms

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Published on: July 27, 2018

Area of Science:

Computer Science
Electrical Engineering
Gerontology

Background:

Localization systems are crucial for monitoring elderly individuals' behavior, health, and detecting emergencies.
Existing systems face challenges in accuracy, energy efficiency, and installation complexity.
Ultrawideband (UWB) and Bluetooth Low Energy (BLE) offer distinct advantages for indoor localization.

Purpose of the Study:

To develop and evaluate an advanced elderly tracking system.
To improve localization accuracy and energy efficiency for senior monitoring.
To simplify system installation and extend coverage through wireless solutions.

Main Methods:

Implemented a hybrid localization algorithm fusing Time Difference of Arrival (TDOA) from UWB and Received Signal Strength (RSS) from BLE.
Developed a wireless anchor node synchronization method using UWB packet retransmission.
Enabled adaptive UWB packet transmission intensity for balancing accuracy and energy consumption.

Main Results:

The hybrid algorithm effectively combines UWB and BLE data for robust localization.
Wireless synchronization extends the effective coverage area of the UWB system.
The system demonstrated adaptability in localization accuracy and energy usage.
Experimental verification in laboratory and typical home environments, including with older adults, confirmed system performance.

Conclusions:

The proposed hybrid localization and wireless synchronization system offers a promising solution for elderly tracking.
The system enhances safety, well-being monitoring, and emergency detection for seniors.
The wireless approach simplifies installation and extends system reach, addressing key limitations of previous technologies.