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A Supply-Rail-Coupled eTextiles Transceiver for Body-Area Networks
本文提出了一种基于电子纺织品的收发器,用于体域网的高效通信与远程充电。
0.9V, 10Mb/s, 3.2pJ/bit, 96% power transfer efficiency
电子纺织品体域网远程充电差分信号高效通信
▸创新点1:采用电源轨耦合差分信号技术(电路创新),通过将信号耦合到电源轨上实现高效通信,显著降低功耗,在0.9V工作电压下实现10 Mb/s速率,功耗仅3.2 pJ/bit,比传统BAN接收机前端效率提升20倍以上。
▸创新点2:实现通信与远程充电的时间共享(系统创新),通过智能调度机制在同一导电纱线介质上分时复用通信和充电功能,远程充电效率高达96%,解决了穿戴节点持续供电难题。
▸创新点3:集成数字基带与介质访问控制器(系统集成创新),将数字处理单元与射频前端单片集成,实现完整收发功能,连续工作功耗仅110μW,显著提升系统紧凑性和能效比。
▸创新点4:采用超电容作为穿戴节点电源(电源架构创新),配合高效无线充电系统,克服传统电池体积限制,实现柔性电子纺织品的轻量化与可穿戴性优化。
Abstract
This paper presents a transceiver that communicates
over electronic textiles as an alternative, energy-ef ficient commu-
nication medium for body-area ne twork (BAN) applications. The
proposed eTextiles network architecture consists of a two-wire con-
ductive yarn medium, body-worn nodes, and a basestation used for
data collection and medium-access control. Fabricated in 0.18 m
CMOS technology, the eTextiles transceiver employs supply-rail-
coupled differential signaling to ef ficiently time-share