Decentralized Infrastructure Health Monitoring Using Embedded Computing in Wireless Sensor Networks

Dragos, Kosmas; Smarsly, Kay

doi:10.1007/978-3-319-56136-3_10

Cited by 10 publications

(8 citation statements)

References 17 publications

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“…Landslide hazard awareness is interlinked with the community resilience level (in terms of technical and financial capacity), especially in developing countries [5]. In order to manage risk related to landslides along infrastructure corridors, increasing user safety, it is essential to provide policymakers with awareness instruments such as landslide inventory and related susceptibility maps with potential information related to stability conditions of slopes along hillsides [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Landslide Awareness System (LAwS) to Increase the Resilience and Safety of Transport Infrastructure: The Case Study of Pan-American Highway (Cuenca–Ecuador)

et al. 2021

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In most countries, landslides have caused severe socioeconomic impacts on people, cities, industrial establishments, and lifelines, such as highways, railways, and communication network systems. Socioeconomic losses due to slope failures are very high and they have been growing as the built environment expands into unstable hillside areas under the pressures of growing populations. Human activities as the construction of buildings, transportation routes, dams, and artificial canals have often been a major factor for the increasing damage due to slope failures. When recovery actions are not durable from an economic point of view, increasing the population’s awareness is the key strategy to reduce the effects of natural and anthropogenic events. Starting from the case study of the Pan-American Highway (the Ecuadorian part), this article shows a multi-approach strategy for infrastructure monitoring. The combined use of (i) DInSAR technique for detection of slow ground deformations, (ii) field survey activities, and (iii) the QPROTO tool for analysis of slopes potentially prone to collapse allowed us to obtain a first cognitive map to better characterize 22 km of the highway between the cities of Cuenca and Azogues. This study is the primary step in the development of a landslide awareness perspective to manage risk related to landslides along infrastructure corridors, increasing user safety and providing stakeholders with a management system to plan the most urgent interventions and to ensure the correct functionality of the infrastructure.

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Section: Introductionmentioning

confidence: 99%

Landslide Awareness System (LAwS) to Increase the Resilience and Safety of Transport Infrastructure: The Case Study of Pan-American Highway (Cuenca–Ecuador)

et al. 2021

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“…This response is then checked against benchmarks to determine whether or not the structure is experiencing duress and needs to be inspected as a first step, followed by repairs as a second step. Given the large amount of data recorded over time, recent advances in hardware have made possible the use of wireless sensors capable of transmitting signals to a remote processing unit, where the integrity of the structure in question is evaluated 4 . To stem the flow of large amounts of data recorded over time, sensors can be equipped with software for structural analysis.…”

Section: Introductionmentioning

confidence: 99%

Vibrations of flexible pylons with time‐dependent mass attachments under ground induced motions

Manolis

Dadoulis

2021

Earthq Engng Struct Dyn

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This work examines how mass attachments that vary with time influence the motion of flexible pylons undergoing ground-induced vibrations. Specifically, an analytical solution is derived for a time-dependent, lumped mass attachment placed at the top of a cantilevered pylon undergoing time-harmonic longitudinal vibrations. At first, the solution to the governing equation of motion entails the recovery of the eigenvalue problem in the presence of a fixed mass. This is then followed by a generalization of this solution to allow for mass variability with time. It is noted that modal analysis no longer yields an uncoupled system of equations for the generalized coordinates, this necessitating a second step modal analysis, which is complicated by the fact that the system matrices are now time dependent. Results are presented in terms of time histories and frequency plots for the pylon displacement amplitude at the top, resulting from harmonic base motion of unit amplitude. The aim is to identify the frequency range over which the presence of a time-varying mass is either beneficial or detrimental in minimizing the pylon's kinematic response. Since the rate of change of the mass can be either positive or negative, the special cases of constant mass and of no mass can be recovered from the solution. Finally, this methodology can be generalized to include transverse and rotational vibrations of flexible pylons.

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“…Such approach, besides representing a relevant rate of owner's annual budget, could not be effective because of the long time-lapse between in situ data collection and information transfer to the operating center. Indeed, a complete monitoring system should include also accelerometers, levelling, total station surveying, laser scanning, GNSS (Global Navigation Satellite System) technologies to control deformation of structures, wireless sensors to detect deterioration of materials, and gauges to monitor stresses of structural elements [3][4][5]. However, it is important to highlight that punctual measurements, carried out at specific points of interest, even though they are without any reasonable doubt accurate and reliable, could represent a limited and only partial information to fully characterize and analyze a potential infrastructure damage and can be highly expensive if a high density of measurements suitable for wide-scale infrastructure monitoring is required.…”

Section: Introductionmentioning

confidence: 99%

Integrated Procedure for Monitoring and Assessment of Linear Infrastructures Safety (I-Pro MONALISA) Affected by Slope Instability

Infante¹,

Martire

Calcaterra

et al. 2019

Applied Sciences

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The occurrence of geological events such as landslides is one of the main causes of damage along linear infrastructures: Damage to transport infrastructures, as roads, bridges, and railways, can restrict their optimal functions and contribute to traffic accidents. The frequent and accurate monitoring of slope instability phenomena and of their interaction with existing man-made infrastructures plays a key role in risk prevention and mitigation activities. In this way, the use of high-resolution X-band synthetic aperture radar (SAR) data, characterized by short revisiting times, has demonstrated to be a powerful tool for a periodical noninvasive monitoring of ground motion and superstructure stability, aimed at improving the efficiency of inspection, repairing, and rehabilitation efforts. In the present work, we suggest a semiautomatic GIS approach, which, by using satellite radar interferometry data and results of geomorphological field survey integrated in a qualitative vulnerability matrix, allows to identify sections with different levels of damage susceptibility, where detailed conventional in situ measurements are required for further analysis. The procedure has been tested to investigate landslide-induced effects on a linear infrastructure in Campania Region (Italy), the Provincial Road “P.R. 264”, which is affected, along its linear development, by several slope instabilities. COSMO-SkyMed interferometric products, as indicator of ground kinematics, and results of in situ damage survey, as indicator of consequences, have been merged in a qualitative 4 × 4 matrix, thus obtaining a vulnerability zoning map along a linear infrastructure in January 2015. Furthermore, an updating of landslide inventory map is provided: In addition to 24 official landslides pre-mapped in 2012, 30 new events have been identified, and corresponding intensity and state of activity has been detected.

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Decentralized Infrastructure Health Monitoring Using Embedded Computing in Wireless Sensor Networks

Cited by 10 publications

References 17 publications

Landslide Awareness System (LAwS) to Increase the Resilience and Safety of Transport Infrastructure: The Case Study of Pan-American Highway (Cuenca–Ecuador)

Landslide Awareness System (LAwS) to Increase the Resilience and Safety of Transport Infrastructure: The Case Study of Pan-American Highway (Cuenca–Ecuador)

Vibrations of flexible pylons with time‐dependent mass attachments under ground induced motions

Integrated Procedure for Monitoring and Assessment of Linear Infrastructures Safety (I-Pro MONALISA) Affected by Slope Instability

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