Tamás Balogh

SensorHUB : an IoT driver framework for supporting sensor networks and data analysis

The Internet of Things (IoT) is transforming the surrounding everyday physical objects into an ecosystem of information that enriches our everyday life. The IoT represents the convergence of advances in miniaturization, wireless connectivity, and increased data storage and is driven by various sensors. Sensors detect and measure changes in position, temperature, light, and many others; furthermore, they are necessary to turn billions of objects into data-generating “things” that can report on their status and often interact with their environment. Application and service development methods and frameworks are required to support the realization of solutions covering data collection, transmission, data processing, analysis, reporting, and advanced querying. This paper introduces the SensorHUB framework that utilizes the state-of-the-art open source technologies and provides a unified tool chain for IoT related application and service development. SensorHUB is both a method and an environment to support IoT related application and service development; furthermore, it supports the data monetization approach, that is, provides a method to define data views on top of different data sources and analyzed data. The framework is available in a Platform as a Service (PaaS) model and has been applied for the vehicle, health, production lines, and smart city domains.

ICT in road vehicles — Reliable vehicle sensor information from OBD versus CAN

The focus of the research and development activities in Intelligent Transportation Systems is to increase road traffic safety and improve transport efficiency. Telematics Systems can provide values on both fields, by providing real-time reliable vehicle specific information [1]. Road vehicle related information can be categorized into several types, but technical information provided through the electronic network of todays vehicles is becoming an increasingly important segment. Using the standard onboard diagnostics (OBD) is a popular solution nowadays for getting out technical data from the vehicle, but it has its limitations [2]. Professional systems rather use direct access to the vehicles CAN network to extract more detailed technical data out from the ECU communication [3]. Even automatic vehicle location (AVL) service providers have difficulties in differentiating between the possibilities and potentials of CAN bus and OBD. This article clearly identifies the differences between the solutions available on the market, by means of comparing the FMS CAN standard, the OBD standard and the Proprietary Vehicle CAN protocol. The comparison is not only theoretical, but it is based on different measurements and analysis. The measurement results demonstrate the benefits and limitations of these information sources. For the measurement we have used our VehicleICT [4] framework that provided the platform for storing and analyzing the data. Based on the provided comparison, the identified advantages and disadvantages of certain source types, we can select the proper solution for a specific requirement. One objective of this research activity is to clarify confusions about the relation of OBD and CAN from the Telematics Systems providers point of view. Besides that this research can be also considered as a pioneer work that demonstrates the capabilities of our VehicleICT framework.

ICT in road vehicles — The VehicleICT platform

Vehicles are not just a means of transportation anymore, but they are also moving entities that collect and transmit a great amount of local data, captured by sensors from the internals of the vehicle and from its environment as well. The consumers of this information include the passengers, especially the driver, and the environment, i.e. other vehicles, intelligent gates, centralized storage systems and data processing solutions. In order to maximize the value provided to the passengers, other vehicles and also the urban society, vehicle services utilize the local nature of the data. This paper discusses the VehicleICT platform, which is a proof of concept implementation, developed by a research institute and an automotive industrial partner.

On the European Norms of Design of Buckling Restrained Braced Frames

The application of buckling restrained braced frames is hindered in Europe by the absence of a standardized design procedure in Eurocode 8, the European seismic design standard. The presented research aims to develop a robust design procedure for buckling restrained braced frames. A design procedure is proposed by the authors. Its performance has been evaluated for buckling restrained braced frames with chevron type brace configurations using a state-of-the-art methodology based on the recommendations in the FEMA P695 document. A special numerical material model was developed within the scope of this research to represent the behavior of buckling restrained braces more appropriately in a numerical environment. A total of 24 archetype designs were prepared and their nonlinear dynamic response was calculated using real ground motion records in incremental dynamic analyses. Evaluation of archetype collapse probabilities confirm that the proposed design procedure can utilize the advantageous behavior of buckling restrained braces. Resulting reliability indices suggest a need for additional regulations in the Eurocodes that introduce reasonable structural reliability index limits for seismic design.