UWB/BLE Tracking System for Elderly People Monitoring

Kołakowski, Jerzy; Djaja-Jośko, Vitomir; Kołakowski, Marcin; Broczek, Katarzyna

doi:10.3390/s20061574

Cited by 42 publications

(26 citation statements)

References 34 publications

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“…The power measurement results from both of the antennas were averaged to mitigate the multipath propagation effects. The anchors were synchronised over UWB interface using a method described in [32]…”

Section: Methodsmentioning

confidence: 99%

Automatic radio map creation in a fingerprinting‐based BLE/UWB localisation system

Kołakowski

2020

IET Microwaves, Antennas & Propagation

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Section: Methodsmentioning

confidence: 99%

Automatic radio map creation in a fingerprinting‐based BLE/UWB localisation system

Kołakowski

2020

IET Microwaves, Antennas & Propagation

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“…In this paper we aim to design and implement a real-time, low-cost asset tracking system which is highly scalable and reliable as well while it is still sufficiently accurate. It is worth to note that there are mixed solution where multiple technologies are used to fulfill different sets of requirements, however these are rather two different implementations that are coupled [ 14 , 15 ].…”

Section: Related Workmentioning

confidence: 99%

Reliable Identification Schemes for Asset and Production Tracking in Industry 4.0

Frankó

Vida

Varga

2020

Sensors

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Revolutionizing logistics and supply chain management in smart manufacturing is one of the main goals of the Industry 4.0 movement. Emerging technologies such as autonomous vehicles, Cyber-Physical Systems and digital twins enable highly automated and optimized solutions in these fields to achieve full traceability of individual products. Tracking various assets within shop-floors and the warehouse is a focal point of asset management; its aim is to enhance the efficiency of logistical tasks. Global players implement their own solutions based on the state of the art technologies. Small and medium companies, however, are still skeptic toward identification based tracking methods, because of the lack of low-cost and reliable solutions. This paper presents a novel, working, reliable, low-cost, scalable solution for asset tracking, supporting global asset management for Industry4.0. The solution uses high accuracy indoor positioning—based on Ultra-Wideband (UWB) radio technology—combined with RFID-based tracking features. Identifying assets is one of the most challenging parts of this work, so this paper focuses on how different identification approaches can be combined to facilitate an efficient and reliable identification scheme.

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“…• The transmitter needs to power a loudspeaker, which is approximately 150 times more power hungry than transmitting RF [10,11]. Hence, the Active Bat topology [4], where the mobile nodes emit ultrasonic signals, is not appropriate for energy constrained nodes.…”

Section: Ultra Low-power Hybrid Acoustic-rf Ranging Conceptmentioning

confidence: 99%

High precision hybrid RF and ultrasonic chirp-based ranging for low-power IoT nodes

Cox

Perre

Wielandt

et al. 2020

J Wireless Com Network

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Hybrid acoustic-RF systems offer excellent ranging accuracy, yet they typically come at a power consumption that is too high to meet the energy constraints of mobile IoT nodes. We combine pulse compression and synchronized wake-ups to achieve a ranging solution that limits the active time of the nodes to 1 ms. Hence, an ultra low-power consumption of 9.015 µW for a single measurement is achieved. The operation time is estimated on 8.5 years on a CR2032 coin cell battery at a 1 Hz update rate, which is over 250 times larger than state-of-the-art RF-based positioning systems. Measurements based on a proof-of-concept hardware platform show median distance error values below 10 cm. Both simulations and measurements demonstrate that the accuracy is reduced at low signal-to-noise ratios and when reflections occur. We introduce three methods that enhance the distance measurements at a low extra processing power cost. Hence, we validate in realistic environments that the centimeter accuracy can be obtained within the energy budget of mobile devices and IoT nodes. The proposed hybrid signal ranging system can be extended to perform accurate, low-power indoor positioning.

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UWB/BLE Tracking System for Elderly People Monitoring

Cited by 42 publications

References 34 publications

Automatic radio map creation in a fingerprinting‐based BLE/UWB localisation system

Automatic radio map creation in a fingerprinting‐based BLE/UWB localisation system

Reliable Identification Schemes for Asset and Production Tracking in Industry 4.0

High precision hybrid RF and ultrasonic chirp-based ranging for low-power IoT nodes

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