NDLI: Model for a Smart Network Monitoring a Wired Sensor Matrix

Content Provider	IEEE Xplore Digital Library
Author	Magagni, L. Gennaretti, D. Nicolini, M. Sergio, M. Guerrieri, R. Canegallo, R.
Copyright Year	2006
Description	Author affiliation: ARCES Univ. of Bologna (Magagni, L.; Gennaretti, D.; Nicolini, M.; Sergio, M.; Guerrieri, R.)
Abstract	Monitoring harsh environments such as underwater scenarios or aircraft external surfaces pertains to important applications like assisted navigation and tactical surveillance; nevertheless, it poses additional challenges compared with standard applications. At Transducers2005 we presented a wired addressing architecture of distributed sensors for monitoring real-time in-situ pressure variations in underwater environment that faces the above-mentioned issues. This architecture consists in a double array of identical and interconnected smart nodes monitoring a matrix of passive sensors. In this paper, we present an analysis of the delay model related to the presented architecture and a calculation of the overall frame-rate of the system as a function of the geometrical topology of the arrays. The topology of the network, i.e. the length of each bus and the number of nodes, can be chosen according to the application, and directly affects the global capacitive load on the serial lines. Each serial line can be schematized with a distributed RC model for the flat cable plus a lumped capacitance for each smart node. Then, a $3^{rd}-order$ pi-segmented model of O'Brien-Savarino is calculated for a 16-block line with block length equal to 0.3 m. Thanks to that, the global time per iteration is calculated on each bus as well as the scanning time of the whole matrix and the frame rate for the system as a function of sensor distribution and of the aspect ratio of the matrix. This model can be employed to identify the optimal arrangement for the sensor matrix and smart node arrays
Starting Page	449
Ending Page	451
File Size	295342
Page Count	3
File Format	PDF
ISBN	1424403081
DOI	10.1109/SAM.2006.1706173
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-07-12
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Monitoring Intelligent sensors Sensor arrays Aircraft navigation Network topology Surveillance Delay Solid modeling Power cables Underwater cables
Content Type	Text
Resource Type	Article

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