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In the present work, the location of the partial discharge source in transformer insulation was analysed by simulation studies. The partial discharge source was modelled such that it radiates the Ultra High Frequency (UHF) signal. The time of arrival of the UHF signal and the magnitude of the UHF signal at any sensor depends on its distance from the partial discharge source. The effect of the barrier...
The location of the partial discharge source in transformer insulation was analysed by simulation studies. The partial discharge source was modelled such that it radiates the Ultra High Frequency (UHF) signal. It was observed that there exists a time difference of arrival of the UHF signal at the sensors based on its distance from the location of the partial discharge source. Also the magnitudes of...
Printed electronics is considered a promising technology for low-cost electronics due to its low cost per unit area, typically offered at the expense of degraded performance. Using a combination of synthetic nanoparticles, organic semiconductors, and novel printing techniques, we demonstrate a range of printed electronic devices including transistors, passive components, and a range of chemical sensors...
Wireless Sensor Networks (WSNs) operate with varying duty cycles to meet their application-specific criteria such as the availability, reliability, and the life expectancy of the system. This variation in duty cycle consequently affects the system characteristics including the interference and collision of signals. However, the sensitivity to physical jamming attacks with respect to duty cycle of...
This paper discusses a grid-type sensor network with reconfigurable PSoCs as sensor nodes, and details the middleware routines that support the high-level model for distributed programming. The advantages of using reconfigurable PSoCs over other architectures, like MICA2 motes, are also discussed. The paper refers to a case study to illustrate the capabilities of the proposed network concept.
This paper presents a systematic methodology for designing the adaptation policies of reconfigurable sensor networks. The work is motivated by the need to provide efficient sensing, processing, and networking capabilities under tight hardware, bandwidth, and energy constraints. The design flow includes two main steps: generation of alternative design points representing different performance-cost...
Massively distributed embedded systems are rapidly emerging as a key concept for many modern applications. However, providing efficient and scalable decision making capabilities to such systems is currently a significant challenge. This paper proposes a model and a specification language to allow automated synthesis of distributed controllers, which implement and interact through formalisms of different...
The field of organic semiconductor based electronics has seen significant and unprecedented progress in the past decade. Low-cost, less energy-intensive and high-throughput production, implementation on flexible and non-planar surfaces, novel applications, as well as the potential to move to more environmentally friendly electronics makes this technology particularly attractive. A wide range of applications...
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