Sensorlab / Publications

Publications

Alexandra Moraru
Enrichment of Sensor Descriptions and Measurements Using Semantic Technologies
MSc thesis, MPS, Ljubljana, Slovenia.

The increased interest in sensing the environment in which we live has led to the deployments of thousands of sensors which can measure and report its status. Besides the difficulty in managing the networks in which such sensors are deployed, handling the information that they capture imposes new challenges. In order to raise the impact that sensor networks can have, improving the usability and accessibility of the measurements they provide is an important step.The problem that this thesis is addressing is that of enrichment of sensor descriptions and measurements in order to provide richer data, i.e., data containing more meaning. Semantic technologies can provide methods for annotating sensor data with semantic concepts that would enrich their descriptions in terms of thematic, spatial and temporal properties.We propose a framework for automatizing the process of semantically enriching sensor descriptions and measurements with the purpose of improving the usability and accessibility of sensor data. First, the conceptual components of the framework are described and next their implementation is provided for real-live datasets of sensor data. The results of the implementation are semantic repositories of original datasets which enable the development of new applications.The advantages brought by the semantic enrichment to sensors are discussed on possible applications that can be developed on the enriched datasets. Through illustrative examples we approach the problems of sensor search and data publishing.

Topic: software
Type: thesis
Download: PDF | PPT

Highlights

As part of activities in the FP7 CREW project the Department of Communication Systems at JSI installed two VESNA SNE-ESTHER devices in London. SNE-ESHTER is a radio receiver for the UHF band designed at JSI based on the VESNA sensor platform. Installed devices will be used for advanced spectrum sensing, contributing to the large scale Ofcom TV White Spaces pilot. One device was installed on the roof of a building in the King's College London Strand campus and the other on the roof of Queen Mary University London. Long term measurements will be used to support the experimentation with advanced, so called cognitive radio devices, as secondary users in currently unused parts of the spectrum.

Marko Pesko, Miha Smolnikar, Matevz Vucnik, Tomaz Javornik, Milica Pejanovic-Djurisic and Mihael Mohorcic published a paper titled "Smartphone with augmented gateway functionality as opportunistic WSN gateway device" in Wireless Personal Communications journal. They described how a Samsung phone connected via Bluetooth to a VESNA sensor node can act as a gateway to a wireless sensor network.

Chapter "Low-cost testbed development and its applications in cognitive radio prototyping" written by our colleagues Tomaž Šolc, Carolina Fortuna and Mihael Mohorcic has been published by Springer in the book  "Cognitive Radio and Networking for Heterogeneous Wireless Networks" from the Recent Advances and Visions for the Future series.

Jernej and Klemen talked with Nickola Naous about our new VESNA sensor node design. Read about The engineers behind the WSN Vesna on the IoTMonkey blog.

The CREW project entered a continuous open access phase. You can test your cognitive radio networking solution on 5 differrent testbed islands and advanced radio components, including our LOG-a-TEC testbed and the VESNA sensor network platform.

In cooperation with Adria Mobil we are developing a motorhome for the future. Adria Moving Lab is equipped with intelligent sensors that allow the vehicle to adapt to its user. This way we can optimize the use of consumables like fuel and water and exploit renewable sources of energy like solar power. The prototype has been unveiled at the Institute Jožef Stefan open days in April 2014.

Our paper "Trends in the development of communication networks: Cognitive networks" is the 10th among the 25th most cited articles published since 2009, extracted from Scopus, see all on the Elsevier web site.

Check the "Cognitive radio experimentation with VESNA platform" presentation by Miha Smolnikar at the School on Applications of Open Spectrum and White Spaces Technologies.

We are looking for a C programmers that would join the team developing the VESNA platform. Candidates that have previous experience with electronic circuit design, operating systems or open source projects will have priority.

 

We are constantly open for talented, open minded and hard working undergraduate students, interns and MSc/PhD candidates. Read more.

[ more highlights ]

Videolectures


Dynamic composition of communication services

Carolina Fortuna

Orchestrating Virtual Wireless Networks from Shared Resource Pools
Luiz DaSilva


VESNA in Kognitivni Radio

Tomaž Šolc

[ more videolectures ]

Demos


SensorNetwork testbed
Mash-up demo.

 

GSN demo

[ more demos ]

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