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Conference proceedings front matter may contain various advertisements, welcome messages, committee or program information, and other miscellaneous conference information. This may in some cases also include the cover art, table of contents, copyright statements, title-page or half title-pages, blank pages, venue maps or other general information relating to the conference that was part of the original...
Motivated by the emergence of the Internet of Things (IoT), and by the importance that location information has on many complex systems scenarios, we propose a hybrid scheme for user positioning in an urban scenario. The system uses both a Global Navigation Satellite System (GNSS) and a Magnetic Positioning System (MPS). To maintain receiver complexity and cost at a minimum, the location scheme combines...
The effective placement of intelligence, surveillance and reconnaissance (ISR) assets in a sensor network for optimal situational awareness is an important area of military operations research. The sensor network placement optimization problem is a type of assignment problem where possible sensor locations can be assigned sensors of different types (or no sensor). We apply a genetic algorithm to the...
Dangerous Good (DG) transportation constitutes a significant economic activity, which moved in 2011 more than 252.000 thousand of tonnes in Europe. In the EU-28 in 2012, 36 accidents occurred involving the transport of dangerous goods. In this paper the authors describe the architecture and the functionalities of a prototype to monitor in real time a railcar dedicated to Dangerous Good Transport (DGT)...
Hybrid systems at the local scale (from nanogrids to low voltage microgrids) that include renewables have experienced an extraordinary growth all over the world and have attracted the attention of both academies and industries to build economic and environmental appealing solutions based on innovative control architectures. These architectures have to take into account the uncertainty and the intermittency...
Microgrids that are able to work both in grid-connected and islanded modes need a hierarchical structure based on tertiary, secondary and primary controllers, which are fundamental for the maintenance of frequency and stability. In this paper, two types of controllers are formalized and solved as optimal control problems: tertiary and secondary controls. For secondary control two different scaled...
One of the most important aspects of a successful space mission is the transition to the correct orbit and maintaining it. As a result, many modern orbit transfer techniques have been developed in space industry in order to accomplish this task in a more reliable and less expensive way. However, when it comes to the design of student satellites, usually there are serious limitations on the financial...
Model-Based Systems Engineering (MBSE) is regarded as the key to face the challenges of tomorrow's product engineering. Core of the MBSE is the so called system model, enabling a consistent specification of the product from different points of view. Nevertheless, we fear that the MBSE vision of INCOSE is not realistically achievable: There is much focus on the technical issues of MBSE, e.g. automatic...
A major cause for a lack in acceptance of today's interdisciplinary modeling approaches is the immense difference in abstraction between engineers' mental models and the available systems modeling languages [1]. Especially mechanical engineers, who use graphical representations like sketches and 3D CAD models, struggle with so called “graphical modeling languages” such as SysML [1][2]. These models...
Control functionality of modern rail vehicles is getting more and more complex. It contains several modules such as the traction control unit or the central control unit, as well as input and output stations, such as driver's cab terminals and process I/Os. A plethora of devices are connected to the vehicle and train bus and are able to communicate. The functions of the vehicle control and traction...
A generic simulation method within heterogeneous system modeling is proposed enabling multi-domain vibro-acoustic gear simulation of electro-mechanical drive trains. The modeling approach accounts for cross-domain system simulation and numerical vibro-acoustic analysis including vibration excitation, structure-borne noise transmission and airborne sound emission. Peripheral mechanisms allow conservative...
The Fast Automated Demand Response (FastADR) for ancillary services might require precise control on power consumption of widely-distributed target loads. Office building air-conditioning facilities are expected to be the FastADR target loads. However, the dynamic behaviors of widely-distributed inverter-driven air-conditioners are complicated and stochastic. In order to reproduce and analyze the...
The change detection and diagnosis methods have gained considerable attention in scientif c research and appears to be the central issue in various application areas. These applications need some robust change detection schemes to work well and separate the changes in the experimental conditions from the real changes in the system, especially for systems with arbitrary and non-stationary known or...
The implementation of the I2C-compatible serial interface for asynchronous ADCs that output data irregularly in time is reported in the paper. The device contains I2C hardware master-transmitter functionality and is capable of operating fully autonomously in I2C bus communication system. In particular, the asynchronous ADC with proposed I2C interface is able to initiate data transfer on the bus when...
Reciprocating compressors produce large fluctuating torques. When a reciprocating compressor is driven by an electric motor, also the rotor of the latter is subjected to these oscillations. Synchronizing torques, damping torques and pulsating primary currents are developed due to this vibratory motion of the rotor. These nonlinearities generate harmonics in the input current. The main standards associations...
CERN designs, builds and operates particle accelerators and experimental areas for scientific research to understand the fundamentals of particle physics. The radiation detectors installed at several places close to the beam lines and target of these areas allows CERN to precisely monitor radiation levels for the purpose of personnel protection. This permits users to know the exact value of the radiation...
Systems Modeling Language (SysML) is used to capture systems design as descriptive and analytical system models, which relate text-based requirements to the system design model and provide an infrastructure to support analysis and verification. However, SysML is not a methodology, nor a method. This opens-up discussions of how to utilize SysML provided infrastructure to successfully achieve analysis...
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