Battery indifferent wearable Ultrasound
Ultrasound (US) imaging is a non-invasive imaging technique that provides visible information on the structure of musculoskeletal tissues, organs, and vascular system. Recent research trends include the development of wearable US probes, with minimal power consumption and reduced count of piezoelectric elements. In fact, meaningful physiological information can be derived also from single-element transducers. Within this framework, at IIS we have recently developed an ultra-low power wearable US probe, based on an MSP430 and nRF52 microcontrollers, operating with a single US channel and consuming less than 20mW .
Despite the low energy requirements, the proposed solution cannot operate for an arbitrarily long time. To address this limitation, this project aims to include energy harvesting solutions to the probe, making a tradeoff between data freshness and consumed power, with the ultimate goal to reach a "Battery Indifferent" operation.
Goal & Tasks
In this project, you will work on the extension of a novel wearable US probe  to extend its lifetime thanks to energy harvesting solutions. The main tasks are:
- Exploration of different energy harvesting solutions for wearables
- PCB design of the new version of the integrated probe
- microcontroller programming to enable an intermittent mode of operation based on the available energy budget
-  Ultra low power wearable ultrasound probe
- embedded C
- PCB design
- 10% Literature Study
- 50% PCB design
- 40% Microcontroller programming