The aim of this doctoral thesis is to demonstrate the effectiveness of an integrated use of monitoring systems to control situations characterized by serious environmental problems. Within this work the attention was focused on the processes of slope instability Figure 2.3 on page 19; different environmental contexts were also presented as possible applications. The main essentially intuitive idea of this thesis, is that instrumentation is able to provide quality information if it’s run by a monitoring equipment correctly calibrated, depending on the scenario, and the activeness of the phenomenon, and on the specific purposes of intervention. As a complementary activity methods of correction and interpretation of the signal, collected in real time by different types of instrumentation were also tested and deferred. An attempted to develop integration processes of monitoring results, through handling, filtering and integrating of multi-parametric measurements (precipitations, amount of released seismic energy, magnitude of surface deformation and deep slope failure, temperature variations) was also performed. The purpose was not just to estimate the magnitude of the esamine phenomenon (in terms of speed, extent, and intensity), but also to refine a description of the process optimized for use in situations of an early warning system. The work of this thesis is rooted in contexts related to the landslide risk management for the Italian National Civil Protection. However, non-emergency contingencies were dealt to extend the application of the monitoring instrumentation and non conventional procedures also to applicative areas of ordinary character. Already in the 50s, early studies on risk perception were highlighted as a perceived danger is much more lively as the danger is known, otherwise the common trend was to think that it was God’s fault, and thus it is something uncontrollable. Monitors -oris, comes from Monera (Latin), which means is: to admonish, to advise, to inform. Monitoring in the strict sense is mostly considered as the activity of the measuring and quantifying changes in physical parameters regarding a particular portion of the environment, through the use of tools having sensorial functions. These functions go from the possibility of measuring temperature through physical contact with an instrument like the mercury thermometer, to the most advanced digital cameras, capable of providing remote sensing areal temperature data. The original meaning of monitoring , especially within geomechanical and geotechnical issues associated with high levels of risk, has begun a spontaneous evolution in recent years. A monitoring system expands from a single measurement apparatus (sensor) to the whole ubiquitous data acquisition system (sensor networks), and remote sensing (laser scanners, radar interferometry), up to became an operative structure for the management of complex control processes and integrated monitoring activities. To select the most appropriate instruments (laser scanners, radar interferometry, wireless sensor networks, accelerometers, tiltmeters, crack gauges, thermometers and piezometers) were taken into account the environmental context of their application, the technical characteristics concerning the quality and the type of measurements, the durability and its ability to communicate remote

Integration of remote sensing systems and wireless sensor networks in self-adaptive and multi-parametric platform for landslide minitoring / F. Mugnai. - (2011).

Integration of remote sensing systems and wireless sensor networks in self-adaptive and multi-parametric platform for landslide minitoring

MUGNAI, FRANCESCO
Writing – Original Draft Preparation
2011

Abstract

The aim of this doctoral thesis is to demonstrate the effectiveness of an integrated use of monitoring systems to control situations characterized by serious environmental problems. Within this work the attention was focused on the processes of slope instability Figure 2.3 on page 19; different environmental contexts were also presented as possible applications. The main essentially intuitive idea of this thesis, is that instrumentation is able to provide quality information if it’s run by a monitoring equipment correctly calibrated, depending on the scenario, and the activeness of the phenomenon, and on the specific purposes of intervention. As a complementary activity methods of correction and interpretation of the signal, collected in real time by different types of instrumentation were also tested and deferred. An attempted to develop integration processes of monitoring results, through handling, filtering and integrating of multi-parametric measurements (precipitations, amount of released seismic energy, magnitude of surface deformation and deep slope failure, temperature variations) was also performed. The purpose was not just to estimate the magnitude of the esamine phenomenon (in terms of speed, extent, and intensity), but also to refine a description of the process optimized for use in situations of an early warning system. The work of this thesis is rooted in contexts related to the landslide risk management for the Italian National Civil Protection. However, non-emergency contingencies were dealt to extend the application of the monitoring instrumentation and non conventional procedures also to applicative areas of ordinary character. Already in the 50s, early studies on risk perception were highlighted as a perceived danger is much more lively as the danger is known, otherwise the common trend was to think that it was God’s fault, and thus it is something uncontrollable. Monitors -oris, comes from Monera (Latin), which means is: to admonish, to advise, to inform. Monitoring in the strict sense is mostly considered as the activity of the measuring and quantifying changes in physical parameters regarding a particular portion of the environment, through the use of tools having sensorial functions. These functions go from the possibility of measuring temperature through physical contact with an instrument like the mercury thermometer, to the most advanced digital cameras, capable of providing remote sensing areal temperature data. The original meaning of monitoring , especially within geomechanical and geotechnical issues associated with high levels of risk, has begun a spontaneous evolution in recent years. A monitoring system expands from a single measurement apparatus (sensor) to the whole ubiquitous data acquisition system (sensor networks), and remote sensing (laser scanners, radar interferometry), up to became an operative structure for the management of complex control processes and integrated monitoring activities. To select the most appropriate instruments (laser scanners, radar interferometry, wireless sensor networks, accelerometers, tiltmeters, crack gauges, thermometers and piezometers) were taken into account the environmental context of their application, the technical characteristics concerning the quality and the type of measurements, the durability and its ability to communicate remote
2011
N. Casagli
ITALIA
F. Mugnai
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Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/545749
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