协议灵活的定制近场通信用于无线可穿戴传感器网络
Protocol-Flexible Custom NFC for Wire-Free Wearable Sensor Networks
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- School of Systems Engineering, Kochi University of Technology（高知工科大学系统工程学院）
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中文总结 AI 辅助
本研究提出一种软件定义协议的定制NFC系统，兼容织物集成线圈，实现三个传感器标签的连续数据采集，轮询速率222赫兹，有效吞吐量约16千比特每秒。
中文摘要 AI 辅助
本研究提出了一种具有软件定义协议实现的定制近场通信（NFC）系统，用于分布在身体各处的可穿戴传感器。传统的有线实现可能因机械约束而降低可穿戴性，而基于无线电的无线方法（如蓝牙）则受到身体引起的信号衰减和有限通信覆盖范围的影响。所提出的系统与先前展示的织物集成蛇形线圈兼容，为服装规模的NFC通信区域提供了可行路径。该系统将微控制器单元与紧凑的调制和解调电路相结合，允许在软件中实现介质访问控制和其他通信协议。实验结果表明，系统能够连续采集来自三个传感器标签的三轴加速度数据，实现每个标签的轮询速率为222赫兹，有效吞吐量约为16千比特每秒，在测得的30%数据包错误率下，每个标签每秒提供156个有效样本。
英文摘要
This study presents a custom near-field communication (NFC) system with software-defined protocol implementation for wearable sensors distributed across the body. Conventional wired implementations can degrade wearability because of mechanical constraints, whereas radio-based wireless approaches such as Bluetooth are affected by body-induced signal attenuation and limited communication coverage. The proposed system is compatible with previously demonstrated fabric-integrated meander coils, which provides a feasible path toward garment-scale NFC communication areas. The system combines a microcontroller unit with compact modulation and demodulation circuits, allowing medium access control and other communication protocols to be implemented in software. Experimental results demonstrate continuous acquisition of three-axis acceleration data from three sensor tags, achieving a per-tag polling rate of $222\,\mathrm{Hz}$ and an effective throughput of approximately $16\,\mathrm{kbps}$, delivering $156$ valid samples per second per tag at a measured packet error rate of $30\%$.
