Wireless charging system and mobile sensors: a comprehensive review

Wireless charging systems have seen a rapid rise in medical devices, mobile sensing, consumer electronics, electric vehicles, and other applications due to their high operational flexibility. This paper aims at providing an in-depth systematic analysis of contemporary wireless charging and mobile sensor systems based on a comprehensive analysis of recent literature on the topic.
The paper starts by describing the fundamental principles of wireless energy transfer, applications, and current challenges, followed by mathematical analysis, algorithms, simulation, and experimental results. Specifically, wireless power transfer (WPT) using inductive coupling, magnetic resonance, and radio frequency methods are studied to get a thorough understanding of the concepts.
Compared to other similar studies, the focus is on healthcare and assisted living applications. The outcome of a thorough analysis of the relevant literature for a few chosen studies identified areas for improvement as well as new applications for the discipline [1-5].