Emerging Topics in WPT for IoT

WPT Workshop – Session 6 – Instructors: Nuno Carvalho and Valentina Palazzi

Abstract and Session 6-1 Summary: Nuno Carvalho

Title: Energy Sustainability for Net Zero Radio Communications

Abstract: Energy is central to all our activities, especially now, as electricity is needed for basic human survival. Nevertheless, the resources are limited. On certain occasions, we must rely on the opportunity to have specific energy availability and energy on demand so that sensors, emergency communications, and ICT will continue operating even if the energy grid is not there.

This talk will discuss the electricity generation problem and how to cope with the massive demand for ICT (Information Communication Technologies) technologies. We will address new paradigms for radio communications and alternatives to make energy available when needed and where needed. It is expected that Net Zero Radio alternatives will be available on the market in the future.

Abstract and Session 6-2 Summary: Valentina Palazzi

Title: Dynamic Wireless Power Transfer System for Electronics on Rotating Platforms

Abstract: Wireless sensing solutions are currently being developed for industrial applications to perform predictive maintenance and condition monitoring. Checking the status of mechanical parts in industrial equipment is pivotal to reduce production waste and improve safety.

However, these systems pose challenges in terms of power supply. Periodic battery replacement is usually impractical since it increases the maintenance costs of the equipment and can cause periodic machinery shut downs. In such a context, Wireless Power Transfer (WPT) represents a viable solution to guarantee the continuous operation of the wireless sensors.

This talk will focus on a case study represented by a WPT system for electronics placed on rotating platforms. The system, based on resonant near-field WPT, is optimized to achieve compactness and ease of installation, and is designed to supply power to a wireless sensing platform based on a Bluetooth Low Energy transponder. The main design steps and trade-offs will be analyzed, the experimental results will be reported and the obtained performance will be discussed and generalized for different application scenarios.