For the needs of Mobitel d.d. we developed an open-source software tool GRASS-RaPlaT which consists of software modules and is intended for modeling and calculation of radio signal coverage. The modules are part of an open source geographic information system GRASS using Python script to integrate them into a common information system. In 2013, we expanded frequency range of applications into the area of 30 MHz to 3 GHz, created a module for calculating signal coverage for broadcasting services and sped up the calculation of ray tracing method by parallel implementation on graphics processing unit. We have also prepared a user-friendly version of GRASS-RaPlaT tool, which is accessible through JSI website.
F.07 Improvements to an existing product
COBISS.SI-ID: 27150119IJS is one of the key partners in the 7FP ABSOLUTE project "Aerial Base Stations with Opportunistic Links for Unexpected & Temporary Events" which main goal is to design and validate a holistic and rapidly deployable mobile network to provide broadband services based on a flexible, scalable, resilient and secure network design. We managed to invite in the project also the Administration of the Republic of Slovenia for Civil Protection and Disaster Relief and thus ensure the transfer of new interoperability concepts between advanced mobile networks and conventional public safety networks from EU to Slovenia, which is especially important for the events of natural disasters that are in our country every year more frequent.
F.11 Development of a new service
COBISS.SI-ID: 26808359We 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 to use in research, development or final products. Platform supports with vertical integration of wireless sensor networks technologies and semantic technologies, as well as with the use of machine learning algorithms and decision, a concept of service-oriented sensor network. We developed a set of expansion boards that allow the realization of application-related functionality and transition into other communications networks. Through a series of digital and analog interfaces platform supports a wide range of sensors and actuators.
F.08 Development and manufacture of a prototype
COBISS.SI-ID: 27063591In collaboration with the Municipality of Logatec and Public Utilities Company Logatec we set up open experimental sensor network LOG-a-TEC, which allows the detection and analysis of availability of radio spectrum in the frequency band ISM and UHF and is based on JSI developed platform for wireless sensor networks VESNA. Experimental network LOG-a-TEC is a part of the FP7 project CREW from the European initiative FIRE, dedicated to experimental research and development in the fields of cognitive radio and cognitive networks. It also allows evaluation of technologies, devices, algorithms and protocols in the domain of Internet of Things. As the only experimental network operating in the real outdoor environment, it is available for both local and foreign research groups.
F.08 Development and manufacture of a prototype
COBISS.SI-ID: 27037223Within the framework of the ESA project SatProSi we developed a ground station for receiving satellite signals in the 20 GHz frequency band. We designed satellite receiver in SDR technology. It is intended for long-term monitoring of the satellite carrier and modeling of satellite channel. In 2013 we built three receivers, adapted them to receive Alphasat signal and prepared everything ready for site diversity experiment. The receiver is characterized by extremely low price and high performance, which raised the attention of colleagues in the Joanneum Research, who invited us to participate in their ESA project "Data Collection and Processing System for the Alphasat TDP5 Ka - Q band propagation experiment". One JSI receiver is already installed on Hilmwarte tower in Graz.
F.08 Development and manufacture of a prototype
COBISS.SI-ID: 26848807