Leopoldo Angrisani, Domenico Capriglione, Gianni Cerro, Luigi Ferrigno, Gianfranco Miele
Modern Intelligent Transportation System in order to guarantee safety and road efficiency has to implement efficient and reliable communication techniques. Traditional techniques are based on a client–server paradigm, needing the installation of base stations and the allocation of frequency bands to be implemented. These solutions would require the allocation of a band in several countries in order to give a reliable service to long–distance traveling vehicles, without considering that nowadays the radio spectrum resource is overcrowded. To overcome these limits the interest for Vehicular...
TC4 Symposium 2014
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Consolatina Liguori, Vincenzo Paciello, Antonio Pietrosanto, Paolo Sommella
Electronic instrumentation and sensors are playing a relevant role in preventing and detecting road accidents, and improving the overall driving experience. Consequently fault detection on vehicle instrumentation and sensors also emerged as a main topic for its direct impact on cost and road safety. As solution, the employment of the analytical redundancy of measurement information is particularly suitable and/or necessary. This paper is about the estimation of suspension stroke exploiting the analytical redundancy among the measurement signals provided by a typically adopted instrumentation...
TC4 Symposium 2014
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Francesco Abate, Giuseppe Di Leo, Alfredo Paolillo, Vincenzo Paciello
In this paper an innovative system for the traceability of products along all the production chain is proposed. The presence of semi-active RFID module integrating suitable sensors allows the remote monitoring of the storage and transport conditions. The main novelty is constituted by the On Board Unit (OBU), installed on the vehicle, which is the connection between the vehicle itself and the central system. The OBU works both as a concentrator node, for the wireless network composed by the semi-active RFID devices, and as a RFID reader.
TC4 Symposium 2014
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Francesco Bonavolontà, Massimo D'Apuzzo, Annalisa Liccardo, Gianfranco Miele
The paper deals with the problem of measuring harmonic and interharmonic pollution in electrical power delivery systems. The attention is specifically focused on the possibility of exploiting the compressed sampling in order to implement cost-effective nodes for distributed acquisition of the voltage signals. Differently from the traditional distributed measurement systems, the proposed approach should allow a dramatic cost reduction of the monitoring network. According to the compressed sampling protocol, the operations of distributed nodes will, in fact, be limited to random digitization...
TC4 Symposium 2014
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Jerzy Kolanko, Piotr Modzel, Zbigniew Wierzbicki, Janusz Dudzik, Przemysław Musz
The paper presents the new power processor and the first results of its application. Power processor is an electronic circuit which allows to separate the measured power signal (obtained from the multiplier circuit) to the components: P + and P- labeled in the literature as the input power Pv and the return power Pr, which is itself harmful, is heating back wires and supply transformers. It is produced by shifting the phase between the current and voltage and it is negative. Such natural division based on physical fenomena of energy direction and will be usefull in correct billing and...
TC4 Symposium 2014
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Ettore Napoli, Giorgio Lopez, Antonio G.M. Strollo
Noise signals are needed for test and validation of electronic systems and communication channels. Available noise sources are however limited to wide band white noise sources while the arbitrary waveform generators are poorly suited for the generation of long random or pseudo random noise sequences. The paper explores the possibility of using a single bit pseudo random sequence, filtered with a FIR filter, for the generation of an analogue noise signal with programmable spectral features. The results show that the technique is suitable for real time applications. When implemented on a Field...
TC4 Symposium 2014
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Homa Arab, Cevdet Akyel
The aim of this paper is to study the effect of using different cone angles of a conical type coaxial probe in measuring dielectric properties of materials. Reflection coefficient,impedance and dielectric permittivity of six different angles of an open ended coaxial lines are studied. Using probes of sharper cone angles (sharper tips) allows for easier penetration into wide range of biological tissue types, which is an important feature in many biological applications. To demonstrate the accuracy of the numerical model, a parallel experimental study was carried out in the laboratory for the...
TC4 Symposium 2014
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Aldo Baccigalupi, Mauro D’Arco, Annalisa Liccardo
The functionalities of signal sources have kept the pace with the mounting complexity of the available systems. It could appear, that the types of signal sources nowadays available on the market allow the user to satisfy every need in test and measurement applications. On the contrary, despite the wide range of functionalities provided by the very last generation sources, there is still room to imagine challenges and propose hypothetical architectures of generators suitable to face them. The speculative case of architectures made up of multiple direct digital synthesizers (DDS) circuits that...
TC4 Symposium 2014
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Marco Sellone, Nosherwan Shoaib, Luca Callegaro, Luciano Brunetti
The expression of uncertainty of scattering parameter measurements in vector network analysis is an active research subject, since no full consensus about proper algorithms for such expression has been reached so far. Recently, two software packages have been acquired at INRIM, which allow to perform this task in a metrological framework. In this paper we compare the result of analysis performed by two packages, VNA Tools II and Multiport Measurement Software version 4 (MMS4). Both packages claim to perform uncertainty analyses fully compliant to the Guide of expression of uncertainty in...
TC4 Symposium 2014
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Pasquale Arpaia, Luca Sabato
A procedure for reducing both deterministic and uncertainty effects of parasitic capacitance in designing standard inductors is presented. Metrological performance is enhanced while minimizing both deterministic and uncertainty effects simultaneously. In particular, statistical parameter design is exploited, by choosing optimum levels of design variables of the standard inductor. At this aim, initially, a first model is identified in order to define the impact of design parameters on parasitic capacitances considered as deterministic and the configuration for their minimization. Then, in the...
TC4 Symposium 2014
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