通过纺织线圈阵列实现多个可穿戴传感器的高效分布式无线功率传输系统。

Efficient Distributed Wireless Power Transfer System for Multiple Wearable Sensors through Textile Coil Array.

机构信息

School of Electronic Engineering, Hanyang University, Seoul 04763, Republic of Korea.

School of Biomedical Engineering, Hanyang University, Seoul 04763, Republic of Korea.

出版信息

Sensors (Basel). 2023 Mar 3;23(5):2810. doi: 10.3390/s23052810.

DOI:10.3390/s23052810

PMID:36905014

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10007223/

Abstract

When it is necessary to detect various physiological signals of the human body, clothing embroidered with near-field effect patterns can be used as a long-term power supply medium to supply power to long-distance transmitters and receivers to form a wireless power supply system. The proposed system uses an optimized parallel circuit to achieve a power transfer efficiency of more than five times higher than that of the existing series circuit. The power transfer efficiency of simultaneously supplying energy to multiple sensors is increased higher than five times and even more when only one sensor is coupled. When powering eight sensors at the same time, the power transmission efficiency can reach 25.1%. Even when eight sensors powered by the coupled textile coils are reduced to one, the power transfer efficiency of the whole system can reach 13.21%. Additionally, the proposed system is also applicable when the number of sensors ranges from 2 to 12.

摘要

当需要检测人体的各种生理信号时，可以使用绣有近场效应图案的衣物作为长期的电源介质，为远距离的发射器和接收器供电，形成无线供电系统。所提出的系统采用优化的并联电路，实现的功率传输效率比现有串联电路高出五倍以上。同时为多个传感器供电时，其功率传输效率提高了五倍以上，当只有一个传感器耦合时甚至更高。当同时为八个传感器供电时，功率传输效率可达 25.1%。即使将通过耦合的纺织线圈供电的八个传感器减少到一个，整个系统的功率传输效率也能达到 13.21%。此外，当传感器数量在 2 到 12 之间时，该系统也适用。