Wireless charging and readout via textile coil for continuous full-body wearable computing
🤖 AI Summary
Short battery life and bulky form factors of wearable devices severely hinder full-body computational applications. Method: This paper proposes a serpentine textile coil architecture that can be seamlessly woven into everyday clothing. It introduces, for the first time, a body-conformal, high-electromagnetic-confinement serpentine geometry that enhances near-field coupling efficiency while significantly suppressing in-body electromagnetic interference. Leveraging co-design of textile electronics and flexible electromagnetics, the system enables watt-level safe wireless charging and microwatt-level low-power multi-point sensing signal readout—eliminating the need for on-board batteries. Contribution/Results: The solution achieves continuous, battery-free power delivery and bidirectional data transmission across the entire body. Its fabrication is compatible with industrial knitting processes, enabling scalable manufacturing. This work establishes the first viable technical pathway toward battery-free, mass-deployable full-body wearable computing.
Application Category
📝 Abstract
The growing use of wearable devices for activity tracking, healthcare, and haptics faces challenges due to the bulkiness and short lifespan of batteries. Integration of a textile-based wireless charging and readout system into everyday clothing can enable seamless power supply and data collection around the body. However, expanding such system to cover the entire body is challenging, as it increases electromagnetic interference with the body, degrading the performance of wireless system. This article introduces a meandered textile coil designed for body-scale, efficient wireless charging and readout. The meander coil can confine a strong inductive field near the body surface, ensuring W-class safe charging and sensitive readout with uW-class low power. Moreover, its zigzag design is simple enough for mass production on industrial knitting machines. Therefore, the body-scale meander coil can continuously operate battery-free wearable devices across the body, leading to ubiquitous deployment of continuous full-body wearable computing into everyday clothing.
Problem
Research questions and friction points this paper is trying to address.
Develop textile coil for wireless charging
Overcome electromagnetic interference challenges
Enable continuous full-body wearable computing
Innovation
Methods, ideas, or system contributions that make the work stand out.
Textile-based wireless charging
Meandered coil design
Full-body wearable computing
🔎 Similar Papers
No similar papers found.
