|کد مقاله||کد نشریه||سال انتشار||مقاله انگلیسی||ترجمه فارسی||نسخه تمام متن|
|275872||1429498||2013||15 صفحه PDF||سفارش دهید||دانلود رایگان|
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A modern distributed monitoring system is a network of sensing units that acquire and transmit data towards a base station. These systems can be used to monitor infrastructures such as tunnels, pipelines and mines, supporting the detection of abnormalities such as faults and incidents. Wired and wireless solutions can be used to address inter-unit and remote communications, with the ultimate choice of technology determined by the monitoring application and its constraints. When an accident affects the monitored area (e.g., fire or explosion), the collapse of part of the structure on which the system is deployed may result in a partial or total impairment of system performance. In such circumstances, the system is unable to provide monitoring data that is required to assess the residual risk and to evaluate the accident dynamics.This paper presents a methodology for designing robust wired monitoring systems that can recover from faults, failures or accidents by relying on hybrid wired–wireless technology and a self-configuration mechanism. The default wired communications is based on a fieldbus and changes to hybrid wired–wireless communications when the network or portions of it are down. The identification of the system segments on which unit data has to be routed for delivery is performed by an energy-aware algorithm and mechanisms that endow a certain amount of intelligence to the units.The proposed solution does not introduce restrictions on the number of data collection base stations or on the network topology. Experimental results show that the solution is effective and provides robust mechanisms for dealing with topological changes while conserving energy.
Journal: International Journal of Critical Infrastructure Protection - Volume 6, Issues 3–4, December 2013, Pages 132–146