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 18 of 18 for “"Wireless Sensor Node"”.
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Power Efficient Wireless Sensor Node through Edge Intelligence
… dissipation to enable power-hungry long-range wireless applications. This work applies edge intelligence to quantify the reduction in power dissipation. We designed a wireless sensor node with a LoRa radio and implemented a decision tree classifier, in situ, to classify behaviors of cattle. We …
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Exploring the wireless sensor node tradespace within Structural Health Monitoring
… at the earliest possible moment from an array of sensors and actuators. To achieve this goal, not only global but local facets of the structure must be monitored. If this promise is realized, it will be possible to design bridges closer to their tolerances, to extend their operational lives, and …
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Ultra Low-Power Wireless Sensor Node for Structural Health Monitoring
… in the thesis: reduction of power consumption of wireless SHM sensor, and compensation of temperature dependency on impedance. The proposed design minimizes power by employing on-board signal processing, and by eliminating power hungry components such as ADC and DAC. The prototype implemented with …
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Low-Power Wireless Sensor Node with Edge Computing for Pig Behavior Classifications
A wireless sensor node (WSN) system, capable of sensing animal motion and transmitting motion data wirelessly, is an effective and efficient way to monitor pigs' activity. However, the raw sensor data sampling and transmission consumes lots of power such that WSNs' battery have to be frequently …
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Self-powered wireless sensor system using MEMS piezoelectric micro power generator (PMPG)
… (PMPG) has been integrated with a commercial wireless sensor node (Telos), to demonstrate a self-powered RF temperature sensor module. PMPG and a power management module are designed to satisfy sensor node's power requirement. An electro-mechanical model of PMPG has been developed to maximize …
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Vibration Energy Harvesting IC Design with Incorporation of Two Maximum Power Point Tracking Methods
… transducer (PZT) to provide power for a wireless sensor node (WSN). With a traditional rectification stage, a two-path three-switch dual-input dual-output architecture is adopted to extract power and regulate the output voltage for the load with one stage. The power stage is controlled …
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Low-power digital processor for wireless sensor networks
In order to make sensor networks cost-effective and practical, the electronic components of a wireless sensor node need to run for months to years on the same battery. This thesis explores the design of a low-power digital processor for these sensor nodes, employing techniques such as hardwired …
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CYBER-PHYSICAL SYSTEM: REAL-TIME INTERNET-BASED WIRELESS STRUCTURAL HEALTH MONITORING SYSTEM
… discussion includes major topics from sensor selection and installation to sensing data display. A cyber-physical system combining embedded system, wireless communication, and the Java platform was developed for structural health monitoring. The focus of this system is to continuously …
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Advancing profiling sensors with a wireless approach
In general, profiling sensors are low-cost crude imagers that typically utilize a sparse detector array, whereas traditional cameras employ a dense focal-plane array. Profiling sensors are of particular interest in applications that require classification of a sensed object into broad categories, …
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Energy efficient operating systems and software
… have been demonstrated using the MIT [mu]AMPS wireless sensor node an example system wherever possible.
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Ultrasound Data Communications for Ultra-low-power Wake-up in Sensor Nodes
In the power-starved wireless sensor node application, the main transceiver has to be duty-cycled to prolong the node battery lifetime. Wake-up is among the lowest power schemes to accomplish this; an always ON low-power receiver called the wake-up receiver is used to turn ON the main receiver when …
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Ultra Low Power Wake-up Receiver with Unique Node Addressing for Wireless Sensor Nodes
… implant devices. For this reason, devices for Wireless Body Area Network (WBAN) applications must consume very little power. To save power, it is desirable to turn off or put to sleep a device when not in use. However, a transceiver, which is the most power hungry block of a wireless sensor …
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Energy-harvested Lightweight Cryptosystems
… include many resource-constrained lightweight wireless sensing devices, hungry for energy, bandwidth and compute cycles. The sheer amount of devices involved will require new solutions to handle issues such as identification and power provisioning. First, to simplify identity management, device …
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An Energy Efficient Cross Layer Design Scheme for Wireless Sensor Networks
Wireless Sensor Networks (WSNs) are wireless networks that have recently drawn significant research attention since they offer unique benefits and versatility with respect to sensing, allowing low-power and low-cost rapid deployment for many applications that do not need human supervision. WSNs are …
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Performance Optimization of Public Key Cryptography on Embedded Platforms
… platform we targeted is an energy-harvested wireless sensor node which has a 16-bit MSP430 microcontroller and a low power RF interface. The system derives its power from a solar panel and is constrained in terms of available energy and computational power. We analyze the computation and …
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Development of Low-power Wireless Sensor Nodes based on Assembled Nanowire Devices
Networked wireless sensor systems have the potential to play a major role in critical applications including: environmental monitoring of chemical/biological attacks; condition-based maintenance of vehicles, ships and aircraft; real-time monitoring of civil infrastructure including roads, bridges …
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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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Energy Harvesting Opportunities Throughout the Nuclear Power Cycle for Self-Powered Wireless Sensor Nodes
Dedicated sensors are widely used throughout many industries to monitor everyday operations, maintain safety, and report performance characteristics. In order to adopt a more sustainable solution, much research is being applied to self-powered sensing, implementing solutions which harvest wasted …