This paper develops an energy-aware ultrasonic sensor network architecture using a Pulse Switching approach for lightweight,
through-substrate operation in Structural Health Monitoring applications. Pulse Switching protocols employ
single pulses instead of multi-bit packets for information delivery with maximal lightness in event monitoring with
binary sensing requirements i.e. where event information transmitted is only a single bit (YES / NO) based on evaluation
of structural characteristics. The paper presents a simulation study of the Energy-Aware Through-Substrate Pulse
Switching protocol performance for structural monitoring when operated using energy harvested from intermittent
vibrations in the structure itself. The paper incorporates an energy harvesting model for simulating memory-less
vibration patterns using exponentially distributed random processes at different networked nodes. These nodes are
placed inside a rectangular plate structure and the corresponding harvested energy profiles are simulated. The vibration
profiles are a function of the position of the node on the plate as well as time. Such spatio-temporal variation leads to
interesting dynamics in the energy-aware protocol operation which have been explored in the current paper setting.
Through the simulations, it is shown that the proposed Energy-Aware Pulse Switching protocol mechanisms can offer a
robust through-substrate network that can be reliably used for Structural Health Monitoring using vibration-harvested
Saptarshi Das, Yan Shi, Bo Dong, and Subir Biswas, "Impacts of structural vibration on the performance of ultrasound sensor networks powered by vibration-harvested energy," Proc. SPIE 9803, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2016, 98032G (Presented at SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring: March 23, 2016; Published: 20 April 2016); https://doi.org/10.1117/12.2219445.
Conference Presentations are recordings of oral presentations given at SPIE conferences and published as part of the proceedings. They include the speaker's narration with video of the slides and animations. Most include full-text papers. Interactive, searchable transcripts and closed captioning are now available for most presentations.
Search our growing collection of more than 26,000 conference presentations, including many plenaries and keynotes.