Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 41 for “"wireless sensing"”.
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Acoustic wireless sensing for environmental monitoring
… available. However, with the developed acoustic sensing device, non-destructive and reliable detection of EHB is now possible. The developed handheld device is capable of analysing the acoustic emissions from a timber structure which allows for determining whether or not EHB is present in its …
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Battery-free wireless sensing and beyond
… and devices. The vision is also of one, where sensing and actuation interfaces blend into everyday objects. If all these interactions and sensing interfaces are realized without the need of an integrated power source and built upon hardware so cheap and simple that it can be installed or …
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Wireless sensing: Material identification and localization
The student, Ashutosh Dhekne, submitted this Dissertation for approval on 2019-07-11 at 14:58.
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Miniaturized Magnetostrictive Antennas for Wireless Sensing Applications
… (MES) antennas have been widely used for wireless sensing applications. Miniaturization of MES antennas can open new applications in in-vivo wireless sensing with higher spatial resolution and solve challenges involved in the miniaturization of conventional electromagnetic antennas. In …
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Wireless Sensing and Fusion using Deep Neural Networks
… many difficult problems within the context of wireless sensing. Indoor localization and human activity recognition (HAR) are two major applications of wireless sensing. However, current fingerprint-based localization methods require massive amounts of labeled data and suffer severe performance …
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System support for robust data collection in wireless sensing systems
… system support for robust data collection in wireless sensing systems through addressing a few urgent design issues in the existing systems. A wireless sensing system may suffer issues arising at the sensors, during the data transmission, and during the data access by applications. Due to the …
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Design And Analysis Of Reconfigurable Sensing Antennas For Wireless Sensing Applications
Reconfiguration sensing antenna (rsa) is a novel antenna concept, which not only can transmit or receive radio waves but also can sense the surrounding environment. The environment sensing is realized by reconfiguring the antenna's characteristics, such as resonant frequency, and radar cross …
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Wireless Sensing with Machine Learning: Through-Wall Vision & Contactless Health Monitoring
… bodies. This thesis demonstrates how we can use wireless signals and machine learning to sense people without any physical contact with their bodies. We develop novel radio sensors that sit in the background like a Wi-Fi router. Our sensors however analyze the surrounding radio signals using …
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Transformation of the US healthcare system with the advent of wireless sensing technologies
… for continuous health monitoring systems. New wireless sensing technologies are redefining the care services, processes and customer expectations. This is especially true for chronic disease management and eldercare. We develop a view point to understand at a broad level how the US healthcare …
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Development of Aerial-Ground Sensing Network: Architecture, Sensor Activation, and Spatial Path-Energy Optimization
… as a low-cost and effective geospatial remote sensing solution. Meanwhile, wireless sensing network technology (WSN) has also matured in recent years with many applications found in engineering practice. In this dissertation, a novel aerial ground wireless sensing network (AG-WSN) is developed, …
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Reconfigurable Sampling for Enhanced Energy Efficiency in Power-Constrained Wireless Systems
<p> <p>Advancement in microelectronics and wireless communications has nurtured the development of low power and low cost wireless systems such as sensor networks. Each node is typically driven by a battery, which has a limited energy capacity that directly constrains node, and network lifetime. …
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Lithium ion power generator : a novel system for direct thermal to electric energy conversion
Wireless sensing technology has advanced greatly, but a critical obstacle to miniaturization and true autonomy is how to power sensors. Lithium ion batteries have been ideal power sources due to their high power density, but autonomy requires some form of power generation. The unique demands of …
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Structural Wireless Delamination Sensor
… sensor proposed in this thesis (termed as Wireless Interlaminar Nano Sensor, or WINS) is an LC resonant circuit (resonant frequency fₛ = 1 MHz), and unlike prior sensors, is comprised solely of structural materials: a structural epoxy and carbon nanotubes (CNTs). The delamination crack …
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Cyber-Physical Systems: two case studies in design methodologies
… sink able to provide cooling or to serve as a wireless sensing node.
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Experimental and Computational Study of Vibration-Based Energy Harvesting Systems for Self-Powered Devices
… is important for reducing the dependence of wireless sensing and networks on batteries. We develop a configuration for a piezoelectric energy harvester with the capability to wirelessly communicate vibration measurements while using those vibrations to power the sensing and communication …
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Embedded Sensing System for Whispering-Gallery-Mode Optical Resonators
… from optical communications, microlasers, sensing, opto-mechanics to quantum optics. However, overcoming obstacles of practical applications for WGM resonators is absolutely a big challenge. First, we report the first realization of a compact WGM sensing system, which integrates a tunable …
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An 8-Bit Analog-to-Digital Converter for Battery Operated Wireless Sensor Nodes
<p>Wireless sensing networks (WSNs) collect analog information transduced into the form of a voltage or current. This data is typically converted into a digital representation of the value and transmitted wirelessly using various modulation techniques. As the available power and size is limited for …
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Extracting Electromechanical Signals for Icebreaker Insights
… and hardware components to incorporate an added wireless capability, allowing the NILM to act as a central processor for a physically securable network of wireless sensing nodes. Testing was conducted in four separate shipboard environments to confirm the feasibility of this network architecture. …
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