A5088534260- Indoor and Outdoor Localization Technologies
- Context-Aware Activity Recognition Systems
- Underwater Vehicles and Communication Systems
- Energy Efficient Wireless Sensor Networks
- Embedded Systems Design Techniques
- Robotics and Sensor-Based Localization
- Building Energy and Comfort Optimization
- Quantum, superfluid, helium dynamics
- Mobile Crowdsensing and Crowdsourcing
- Advanced Chemical Physics Studies
- GNSS positioning and interference
- Inertial Sensor and Navigation
- IoT-based Smart Home Systems
- Bluetooth and Wireless Communication Technologies
- Physics of Superconductivity and Magnetism
- Mechanical and Optical Resonators
- Urban Heat Island Mitigation
- Speech and Audio Processing
- Real-Time Systems Scheduling
- Algorithms and Data Compression
- RFID technology advancements
- Air Quality Monitoring and Forecasting
- Advanced Data Storage Technologies
- Smart Parking Systems Research
- Distributed Sensor Networks and Detection Algorithms
Stuttgart University of Applied Sciences
2012-2024
Deutsches Zentrum für Luft- und Raumfahrt e. V. (DLR)
2018
Lucerne University of Applied Sciences and Arts
2006-2013
University of Stuttgart
2009-2010
Leipzig University
1998-2004
The Indoor Positioning and Navigation (IPIN) conference holds an annual competition in which indoor localization systems from different research groups worldwide are evaluated empirically. objective of this is to establish a systematic evaluation methodology with rigorous metrics both for real-time (on-site) post-processing (off-site) situations, realistic environment unfamiliar the prototype developers. For IPIN 2018 conference, was held on September 22nd, 2018, Atlantis, large shopping...
This paper presents the analysis and discussion of off-site localization competition track, which took place during Seventh International Conference on Indoor Positioning Navigation (IPIN 2016). Five international teams proposed different strategies for smartphone-based indoor positioning using same reference data. The competitors were provided with several smartphone-collected signal datasets, some used training (known trajectories), others evaluating (unknown trajectories). permits a...
The development of indoor positioning solutions using smartphones is a growing activity with an enormous potential for everyday life and professional applications. research activities on this topic concentrate the new that are tested in specific environments under their own evaluation metrics. To explore real quality smartphone-based capabilities seamlessly adapting to different scenarios, it needed find fair frameworks. design competitions extensive pre-recorded datasets valid way generate...
This paper presents results from comparing different Wi-Fi fingerprinting algorithms on the same private dataset. The where realized by independent teams in frame of off-site track EvAAL–ETRI Indoor Localization Competition which was part Sixth International Confere nce Positioning and Navigation (IPIN 2015). Competitors designed validated their against publicly available UJIIndoorLoc database contains a huge reference- validation data set. All competing systems were evaluated using mean...
The design and result of a fingerprint calibrated weighted centroid localization (FCWC) algorithm is outlined, discussed evaluated against the UJIIndoorLoc data set. suitable for situations where positions access points are not known but reference RSSI measurements can be taken in an indoor environment, as it typically done algorithms. comprises calibration step which based on recorded fingerprints: By performing reverse localization, "Virtual positions" calculated. virtual do necessarily...
The design of an offline algorithm for smartphone based indoor localization is outlined, discussed and evaluated. performs dead reckoning using accelerometer-, compass- gyroscope data. Accelerometer data used to detect step events. Compass are heading estimation. Drift compensation length estimation performed by a particle filter map information. Floor detection on position RSSI (Radio signal strength indicator) evaluation. For the positioning, FCWC (fingerprint calibrated weighted centroid)...
We report on an RF- and ultrasound based indoor localisation system which is used for visitor tracking in the iHomeLab laboratory: Visitors get electronic name badge. This badge can be localised with average accuracy of less than 10 cm deviation its spatial position, by means reference nodes distributed lab rooms. The technology ranging.
The evolution of an existing offline algorithm for smartphone based indoor localization is outlined, discussed and evaluated. performs dead reckoning using accelerometer-, compass- gyroscope data. Accelerometer data used to detect step events. Compass are heading estimation. Drift compensation length estimation performed by a particle filter map information. Floor detection on RSSI (Radio signal strength indicator) evaluation. In scenario where positions determined recorded datasets,...
Indoor positioning systems (IPSs) suffer from a lack of standard evaluation procedures enabling credible comparisons: this is one the main challenges hindering their widespread market adoption. Traditionally, accuracy based on errors defined as Euclidean distance between true positions and estimated positions. While simple, it ignores obstacles floor transitions. In article, we describe that measure error length pedestrian path connects position to position. The apply pathfinding maps using...
The SARBAU project is a study on highly self configuring building automation and control network using IP as field level protocol. UPnP will be used for device operation control. paper gives an overview the approach. Current work-in-progress including wired wireless experimental hardware presented. A focus of this "nearly automatic configuration". Using intelligent commissioning software optional localisation, we propose automated binding schemes.
Fieldbus networks have significantly improved flexibility and management in classic building automation domains. However, the costs of such installations are still greatly affected by commissioning efforts needed to bring them up running. The dedicated cabling, initial engineering sophisticated binding configuration tools often prevent home owners from investing networks. On other side, many electronic devices domains found their way into home- environments. And with IT equipment TCP/IP...
The SARBAU project is a study on highly self configuring building automation and control network using IP as field level protocol. UPnP used for device operation control. concept covers the use cases initial setup, commissioning, operation, retrofit. Group address agents are employed to reduce load devices points collaborative commands. For evaluation of system, an experimental 500 kBps two wire fieldbus PHY layer has been developed, which also supplies power devices. ldquoPetrdquo operating...
With the aim of investigating effect climate on heating in buildings and human productivity, data thermal sensors distributed at rooms level were sent to an implemented analytic management system.This latter integrated Internet Things (IoT) open-source software.As part smart project, challenge here is analyze aggregated data.Therefore, statistical methods applied study relationship between environmental parameters HFT University city Stuttgart (Germany) during 2016.Moreover, we studied...
With the aim of investigating effect climate on heating in buildings and human productivity, data thermal sensors distributed at rooms level were sent to an implemented analytic system. This latter integrated Internet Things (IoT) open source software. Our challenge is analyze aggregated data. Therefore, statistical methods applied study relationship between environmental parameters HFT University city Stuttgart (Germany) during 2016. Moreover, we studied indoor temperature sensation same...
An ultrasound indoor localisation system typically comprises an infrastructure formed by a plurality of fixed nodes, so called beacons. By time flight measurements, the range between mobile node and some beacons at known positions is detected. Given minimum 3 such position can be determined trilateration. To achieve good accuracy coverage, even under difficult or disturbed conditions, it common practice to include more than measurements calculate estimation. The calculation result will...
Classic building automation systems have shown that networks of seamlessly integrated devices add true user value to commercial as well residential environments. They may positively influence factors such energy efficiency, flexibility, security and comfort. But these benefits are not convincing enough, if the handling is complex acquisition engineering costs high. Ideally, integration a new device happens without any effort spent on commissioning. Once integrated, services must be easy use...
Abstract. Providing mobile location-based information for pedestrians faces many challenges. On one hand the accuracy of localisation indoors and outdoors is restricted due to technical limitations GPS Beacons. Then again only a small display available as well develop user interface. Plus, software solution has consider hardware characteristics devices during implementation process aiming performance with minimum latency. This paper describes our approach by including combination image...
IP based field bus networks enable the usage of common protocols for example security or automatic configuration, on level. devices can take advantage well-specified UPnP protocol commissioning and operation. A drawback this deployment is high required network bandwidth due to enormous level overhead, especially XML-and SOAP schemes. We investigate datagram size reduction an experimental with Ethernet wireless IEEE802.15.4 devices, building automation control applications. To be able use...
Indoor localisation offers an abundance of new services to be used within modern buildings. Amongst these, they provide more visibility, and can reduce routine tasks human error, through information server-side reactionary mechanisms. Herein we describe RF- ultrasound-based indoor system useful assisted living residences. The system-in-test uses electronic name-tag that localised with average accuracy less than 10 cm deviation its spatial position by reference nodes distributed throughout...