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49
Recommended Citation
, 2014
"... Damage characterization strategies using local vibration measurements from wired and wireless sensor networks ..."
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Damage characterization strategies using local vibration measurements from wired and wireless sensor networks
Wireless Sensor Networks for Structural Health Monitoring: A Multi-Scale Approach
"... Given the present burdens associated with inspection and maintenance of Civil Infrastructure, the development of effective, automated damage diagnosis techniques, including the sensor technologies that support them, has become a major research need. While recent developments in wireless sensor netwo ..."
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Given the present burdens associated with inspection and maintenance of Civil Infrastructure, the development of effective, automated damage diagnosis techniques, including the sensor technologies that support them, has become a major research need. While recent developments in wireless sensor networks have demonstrated their potential to provide continuous structural response data to quantitatively assess structural health, many important issues including network lifetime and stability, damage detection reliability, and trade-offs in model order to balance computational capabilities must be realistically addressed. Only then can wireless embedded sensor networks become a practical tool for Structural Health Monitoring of large, complex Civil Structures. In response to these needs, the concept of a multi-scale wireless sensor network is introduced in this study with a restricted input network activation scheme and the integration of data from a heterogeneous sensor array to improve damage detection for low-order models. The multi-scale network concept introduced here helps to improve power efficiency, minimize packet loss and latency, and eliminate synchronization issues
Section 3 In-Network Data Communication and Management
"... Sensor Technologies for civil infrastructures: Performance assessment & health monitoring- Wang, Sohn ..."
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Sensor Technologies for civil infrastructures: Performance assessment & health monitoring- Wang, Sohn
Reliability and Data Quality of a Wireless Sensing Unit Developed for Structural Health Monitoring
"... To continue with the development and preliminary testing results of a wireless sensing unit built with some off-the-shelf components presented by the authors at the IMAC XXIII [8], this paper outlines further experimental investigation and reports detailed analysis of the results. Loopback tests wer ..."
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To continue with the development and preliminary testing results of a wireless sensing unit built with some off-the-shelf components presented by the authors at the IMAC XXIII [8], this paper outlines further experimental investigation and reports detailed analysis of the results. Loopback tests were carried out under different testing configurations to assess the impact of the attenuation of building materials and other real-world factors on the transmitted signals and evaluate the performance of an off-the-shelf radio development board. Shaking table tests were used to study systematically how the resolution of Analog-to-Digital Converters (ADCs) and sampling rate would affect the quality of the collected vibration data. To study the reliability of the developed wireless sensing unit, temporal correlations of the lost data in the collected vibration time histories were examined to reveal challenges in data processing and system identification. Design and operating recommendations are also made based on this series of parametric studies. 1 1
In-construction
"... vibration monitoring of a supertall structure using a long-range wireless sensing system ..."
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vibration monitoring of a supertall structure using a long-range wireless sensing system
high-resolution wireless sensors
, 2006
"... As researchers continue to explore wireless sensors for use in structural monitoring systems, validation of field performance must be done using actual civil structures. In this study, a network of low-cost wireless sensors was installed in the Geumdang Bridge, Korea to monitor the bridge response t ..."
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As researchers continue to explore wireless sensors for use in structural monitoring systems, validation of field performance must be done using actual civil structures. In this study, a network of low-cost wireless sensors was installed in the Geumdang Bridge, Korea to monitor the bridge response to truck loading. Such installations allow researchers to quantify the accuracy and robustness of wireless monitoring systems within the complex environment encountered in the field. In total, 14 wireless sensors were installed in the concrete box girder span of the Geumdang Bridge to record acceleration responses to forced vibrations introduced by a calibrated truck. In order to enhance the resolution of the capacitive accelerometers interfaced to the wireless sensors, a signal conditioning circuit that amplifies and filters low-level accelerometer outputs is proposed. The performance of the complete wireless monitoring system is compared to a commercial tethered monitoring system that was installed in parallel. The performance of the
Wireless Sensor Networks for Structural Health Monitoring: A Multi-Scale Approach
"... Given the present burdens associated with inspection and maintenance of Civil Infrastructure, the development of effective, automated damage diagnosis techniques, including the sensor technologies that support them, has become a major research need. While recent developments in wireless sensor netwo ..."
Abstract
- Add to MetaCart
(Show Context)
Given the present burdens associated with inspection and maintenance of Civil Infrastructure, the development of effective, automated damage diagnosis techniques, including the sensor technologies that support them, has become a major research need. While recent developments in wireless sensor networks have demonstrated their potential to provide continuous structural response data to quantitatively assess structural health, many important issues including network lifetime and stability, damage detection reliability, and trade-offs in model order to balance computational capabilities must be realistically addressed. Only then can wireless embedded sensor networks become a practical tool for Structural Health Monitoring of large, complex Civil Structures. In response to these needs, the concept of a multi-scale wireless sensor network is introduced in this study with a restricted input network activation scheme and the integration of data from a heterogeneous sensor array to improve damage detection for low-order models. The multi-scale network concept introduced here helps to improve power efficiency, minimize packet loss and latency, and eliminate synchronization issues
