In this paper we propose a system architecture for wireless sensor networks (WSNs) that makes various types of sensors, sensor data and metadata, discoverable, accessible and controllable over the Internet. This architecture is able to provide sensor as a service functionality using standard communication protocols on the Internet and WSN side. We describe the components of the proposed architecture and then we provide the reference implementation based on the VESNA sensor platform equipped with the open source Contiki OS and its standard protocol stack for constrained devices. We also provide initial performance evaluation of the WSN part of the proposed system architecture. We have developed and upgraded a sensor platform VESNA, distinguished by high processing capability, low power consumption and compatibility with a wide range of communication technologies. Modular design and open specifications of hardware and software provide easy and efficient adaptability for use in research, development or final products. With vertical integration of wireless sensor networks technologies and semantic technologies, as well as with the use of machine learning and decision making algorithms, the platform supports the concept of service-oriented sensor network. We developed a set of expansion boards that allow the realization of application specific functionality and transition into other communications networks. Through a series of digital and analogue interfaces the platform supports a wide range of sensors and actuators.
F.08 Development and manufacture of a prototype
COBISS.SI-ID: 26851879As part of her doctoral dissertation a member of the project team designed a conceptual framework for service-oriented dynamic composition of communication services and its open source reference implementation ProtoStack, which is integrated in the management network of the LOG-a-TEC testbed and supports remote reconfiguration and run-time adaptation of the protocol stack and its parameters. The doctoral thesis theoretically complements the project J2-4197 and demonstrates the exchange of new knowledge and achievements between the research project and study process. The project leader served as a supervisor to this thesis.
D.09 Tutoring for postgraduate students
COBISS.SI-ID: 266457088In collaboration with the Municipality of Logatec and Public Utilities Company Logatec we set up an open sensor network testbed LOG-a-TEC, which allows the detection and analysis of availability of radio spectrum in the ISM and UHF frequency bands and is based on the sensor platform VESNA developed at JSI. The LOG-a-TEC testbed is part of the FP7 projects CREW and Fed4FIRE from the European initiative FIRE/FIRE+, dedicated to experimentally driven research and development in the fields of cognitive radio and cognitive networks. It also allows evaluation of technologies, devices, algorithms and protocols in the areas of radio environment characterization and Internet of Things. We also used this testbed for testing and validation of the solutions developed in the J2-4197 project.
F.08 Development and manufacture of a prototype
COBISS.SI-ID: 27037223Individual project achievements were implemented in the experimental sensor network LOG-a-TEC in order to support testing and validation of developed solutions. This experimental network is part of European initiative FIRE/FIRE+ and as such available to other national and international research groups and individuals. In this paper we propose a methodology for the experimental evaluation of a simple yet efficient power allocation game on a real-world outdoor experimental testbed. With this experimental network the project group participates in several FP7 projects (CREW, ABSOLUTE, CITI-SENSE, SUNSEED, ProaSense and Fed4FIRE) and it received several invitations to participate in H2020 project preparation.
F.17 Transfer of existing technologies, know-how, methods and procedures into practice
COBISS.SI-ID: 27789863The project team increased international visibility and recognition due to activities and results in the area of sensor technologies, of which an important part is carried out in the project J2-4197, as well as due to the open experimental sensor network testbed LOG-a-TEC. Besides the invitations to participate in the preparation of projects this is evidenced also by the inclusion of the project leader in the editorial board of the specialized journal in the area of sensor technologies, the International journal of distributed sensor networks (ISSN 1550-1329; IF=0,923), an invitation of a project team member to a postdoc position at the University of Ghent in the area related to her work in the J2-4197 project, and the invited lectures of the project team members at foreign universities and international events: 1.10 Published scientific conference contribution abstract (invited lecture) FORTUNA, Carolina. From sensors to real-time analytics. V: 1st ACROSS Workshop on Cooperative Networked Embedded Systems, November 20, 2013, Zagreb, Croatia. [S. l.: s. n.], 2013, str. 10. [COBISS.SI-ID 27437095] 3.14 Invited lecture at foreign university MOHORČIČ, Mihael. LOG-a-TEC wireless sensor network based experimental infrastructure for research, testing and validation : invited talk. Zagreb: FER = Fakultet elektrotehnike i računarstva, 9. dec. 2013. [COBISS.SI-ID 27298343] 3.16 Unpublished invited conference lecture MOHORČIČ, Mihael. Vloga in priložnosti področja IKT pri upravljanju z vodnimi viri : KOGRA 2013, Investicije in novi trendi na področju komunale, 4. april 2013, Gornja Radgona, Slovenija. 2013. [COBISS.SI-ID 26808871] ...
B.04 Guest lecture
COBISS.SI-ID: 27298343