Among all kinds of possible faults in a manufacturing system, operational faults occur most often (about 70%). Efficient diagnosis of these faults is critical for improving the availability and productivity of the manufacturing system. This paper presents a hierarchical diagnosis model based on fault tree analysis and two other diagnosis models respectively based on the logic and sequential con...

Bayesian Networks (BN) provide robust probabilistic methods of reasoning under un­ certainty, but despite their formal grounds are strictly based on the notion of condi­ tional dependence, not much attention has been paid so far to their use in dependability analysis. The aim of this paper is to pro­ pose BN as a suitable tool for dependability analysis, by challenging the formalism with basic ...

The subject of this paper is to analyse the low voltage distribution lines inside the consumer premises, in order to attain a channel model useful to simulate its behaviour for high bit-rate digital communications. Measurements have also been performed both in the laboratory and in residential buildings, and results are presented and discussed. Finally, some estimations of the channel capacity ...

© 2016, IRJET | Impact Factor value: 4.45 | ISO 9001:2008 Certified Journal | Page 2284 IMPLEMENTATION OF AUTOMATIC METRO RAIL USING PLC AND SCADA 1 Durga S , 2 Vidya Lakshmi D, 3 S.Nagaraj 1Student, Dept. of Electrical and Electronics Engineering, P.B. College of Engineering, Chennai 2Student, Dept. of Electrical and Electronics Engineering, P.B. College of Engineering, Chennai 3Assistant Prof...

The fast growth of the wireless communication industry poses severe limitations on radio astronomical observations. This is largely due to the fact that in radio astronomy, in contrast to communication systems, the signals of interest are many orders of magnitude below the receiver noise power levels. The structure of some communication signals opens the possibility to reduce the effect on radi...

Research about Group Support Systems and the design of these group support technologies is mainly based on western culture and takes little explicit account of other cultures. While the research reveals promising results on the effectiveness of these technologies, the research results and the technologies themselves may be less effective when applied directly to different cultures or cross-cult...

As the Internet of Things is gaining momentum, low-power communication technologies proliferate. In this paper, we focus on Bluetooth Low Energy (BLE) and IEEE 802.15.4 (CSMA, Low-power listening, and TSCH), and advocate low-power IPv6 for interoperability between the two. We perform a thorough experimental comparison of their link-layer performance, both in idle radio environment and when faci...

The XML technology currently widely used in network communication is also able to play an important role in the automation system of the power system. Based on some specifications and standards of the current power system, the study conducted self-description of the information and data modeling of substation communication protocols with XML and its object-oriented technology, and discussed bas...

The Power Line has been extensively studied as the media for high frequency signal transmission for use as a communications environment. In recent years, development of several power line communications protocols, namely X-10, CEBus and LonWorks, renewed the interest on this matter. This paper gives a brief description of the spectral behavior of these protocols’ physical layer, analyzes the fi...