A5038557870- Indoor and Outdoor Localization Technologies
- Ultra-Wideband Communications Technology
- Bluetooth and Wireless Communication Technologies
- Context-Aware Activity Recognition Systems
- Wireless Sensor Networks for Data Analysis
- Underwater Vehicles and Communication Systems
- Millimeter-Wave Propagation and Modeling
- Wireless Communication Networks Research
- GNSS positioning and interference
- Wireless Body Area Networks
- Sensor Technology and Measurement Systems
- Gyrotron and Vacuum Electronics Research
- Advanced Data Compression Techniques
- Energy Efficient Wireless Sensor Networks
- Technology Use by Older Adults
- Microwave Imaging and Scattering Analysis
- Target Tracking and Data Fusion in Sensor Networks
- Waste Management and Environmental Impact
- Aging and Gerontology Research
- Power Line Communications and Noise
- Mobile Health and mHealth Applications
- Radio Wave Propagation Studies
- Wireless Networks and Protocols
- Social Sciences and Policies
- Mining and Industrial Processes
Warsaw University of Technology
2014-2025
Tele & Radio Research Institute
2015-2019
Localization systems are the source of data that allows to evaluate elderly person’s behaviour, draw conclusions concerning his or her health status and wellbeing, detect emergency situations. The article contains a description system intended for people tracking. Two novel solutions have been implemented in system: hybrid localization algorithm method wireless anchor nodes synchronization. fuses results time difference arrival received signal strength measurements ultrawideband (UWB)...
This paper presents the concept of a hybrid positioning scheme using results from Bluetooth Low Energy (BLE)-based system and additional infrared (IR) devices: proximity sensors far-infrared thermal sensor arrays. In proposed solution, IR operate independently BLE subsystem. Their output (the distance to localized person angle between axis person's location) is periodically used improve accuracy. The both parts are fused particle-filter-based algorithm. was tested experimentally. initial...
This paper describes CAREUP, a novel older adult healthy aging support platform based on Intrinsic Capacity (IC) monitoring. Besides standard functionalities like storing health measurement data or providing users with personalized recommendations, the includes intrinsic capacity assessment and prediction algorithms. Older adults’ performance is continuously monitored in all five IC domains—locomotion, psychology, cognition, vitality, sensory capacity—based results answers to questionnaires...
The clock frequency tolerance and instability have a big impact on positioning accuracy precision in UWB localization systems. paper deals with synchronization TDOA error reduction technique relying reference packets transmission. method was implemented the system. contains description of method, system architecture results performed measurements.
The EIGER <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">1</sup> project proposes a global approach for the exploitation of efficient joint use GNSS signals and UWB positioning in order to allow permanent reliable outdoor/indoor localization. This paper is focused on subsystem designed within project. architecture system design main devices are described. Results selected laboratory tests developed equipments presented discussed.
The NITICS1 project is focused on assistance to elderly people in their homes. Its main goal develop a complex system which would cover all aspects from people's safety convenient living. This paper describes briefly NITICS system, its architecture and UWB localization subsystem. Infrastructure developed devices are presented. Results of selected laboratory tests subsystem described analysed.
UWB positioning systems are able to provide outstanding accuracy and precision of localization. However, system performance strongly depends on the quality reference clock oscillators installed in devices anchors synchronization. The paper describes a new transmission scheme providing wireless infrastructure nodes synchronization reduction errors caused by tag's oscillator tolerance stability. contains description architecture algorithm for time difference arrival determination. proposed was...
Independent living of elderly persons in their homes requires support that can be provided with modern assistive technologies. Monitoring behaviour delivers valuable information used for diagnosis and detection health problems as well triggering alerts emergency situations. The paper includes a description the ultra wideband system developed within Networked InfrasTructure Innovative home Care Solutions (NITICS) Active Assisted Living (AAL) project. component AAL platforms. It data on users...
Localization systems are an important component of Active and Assisted Living (AAL) platforms supporting persons with cognitive impairments.The paper presents a positioning system being part the platform developed within IONIS European project.The system's main function is providing data on user mobility localization, which would be used to analyze his/her behavior detect dementia wandering symptoms.An additional localization items, frequently misplaced by sufferers.The includes brief...
The paper presents an indoor mapping and UWB (ultra-wideband) anchor localization method. method, unlike most of the solutions described it literature uses a static LiDAR (Light Detection Ranging) mounted on tripod rather than robotic platform. It can be used at any place, where employing robot would difficult (e.g. private homes), but since requires manual placement efficient in spaces moderate areas. proposed concept consists environment system installation while performing ranging...
Nowadays, as indoor localization is getting more popular, there a growing need for reliable and accurate techniques of position determination. Recently, UWB (Ultrawideband) based systems are gaining popularity, since they make achieving positioning errors in the range dozens centimeters or even single centimeters, possible. The TDOA (Time Difference Arrival) especially attractive because allow simplification tags, which functionality can be limited to transmission packets. However, one...
The worldwide population is undergoing a fundamental change in its age structure, which challenges the health- and social-services system. need to migrate towards more person-centered coordinated model of care that supports optimization abilities capacities for older people has be matched. In this sense, eHealth technologies can play role. paper, through questionnaire-based data collection using 30 primary (older people) 32 secondary (informal caregivers) end-users, we share our vision on...
The paper contains a description of UWB positioning system whose infrastructure is composed pairs anchor nodes. does not need synchronization network what significantly simplifies its deployment. the architecture and discussion node functions. location was determined with an analytical algorithm performance compared to widely known Chan's solution. concept verified demonstrator consisting two
Accuracy and precision of positioning in UWB localization system depends on the quality clock oscillators. Usually frequencies particular nodes have different offsets what influences performance. The paper presents a method for synchronization distribution reference time interval. Anchor measure arrival packets conveying information. A Kalman Filter based measurement result processing leading to improvement is described paper. Results simulations experiments confirming efficiency are...
The worldwide population is undergoing a fundamental change in its age structure, which challenges the health and social services system. need to migrate towards more person-centered coordinated model of care that supports optimization abilities capacities for older people has be matched. In this sense, eHealth technologies can play role. paper, through questionnaire-based data collection on 30 primary (older people) 32 secondary (informal caregivers) end-users, we share sustainable way...
An Ultra-Wideband System for Vehicle Positioning Systems supporting traffic safety require precise information on a vehicle position. The paper contains proposal localization system based ultra-wideband (UWB) technology. allows positioning with submeter accuracy. presents concept and an algorithm used position calculation. consists in selection of configuration order to decrease the uncertainty. was verified developed demonstrator. description devices comprising system. Exemplary results...
The paper contains the proposal of an ultra wideband pulse detector intended for application in positioning system receiver. design is based on ultra-fast comparator. results comparator measurements. parameters essential to UWB arrival measurement are presented and discussed. In second part description developed evaluation its included.
Most of the established gait evaluation methods use inertial sensors mounted in lower limb area (tibias, ankles, shoes). Such sensor placement gives good results laboratory conditions but is hard to apply everyday scenarios due sensors’ fragility and user’s comfort. The paper presents an algorithm that enables translation signal measurements (acceleration angular velocity) registered with a wrist-worn signals, which would be obtained if was worn on tibia or shoe. Four different neural...
Time of signal arrival determination accuracy has a great impact on UWB positioning system performance. The method proposed in the paper utilizes samples baseband available direct conversion receivers. time is calculated from quadrature components. contains description and presents results its investigation. was investigated with simulations tested signals recorded DW1000 chip. Results investigations are included paper.
The EIGER project proposes a global approach for the exploitation of efficient joint use Global Navigation Satellite System (GNSS) signals and Ultra-Wide Band (UWB) positioning in order to allow permanent reliable outdoor/indoor localization. This paper is focused on UWB subsystem designed within project. architecture subsystem, design its components transmission scheme leading time difference arrival determination are described. Results system laboratory tests presented discussed.
The paper contains a description of measurement system intended for gathering data typically used evaluation elderly persons mobility and behaviour. measurements are carried out with MEMS sensors assembled in the mobile device worn by monitored person. Results sent over wireless link to recording nodes analysis. describes design presents examples recorded data. Proposals usage behaviour investigation also presented discussed.