RFID-Based Dual-Chip Epidermal Sensing Platform for Human Skin Monitoring
RFID-Based Dual-Chip Epidermal Sensing Platform for Human Skin Monitoring
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DOI：
10.1109/jsen.2020.3031664
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发表时间：
2021-02-15
影响因子：
4.3
通讯作者：
Marrocco, Gaetano
中科院分区：
文献类型：
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作者：
Occhiuzzi, Cecilia;Parrella, Sara;Marrocco, Gaetano
基于射频识别（RFID）的无线表皮装置通过直接在皮肤上采样健康参数，实现对人体的非接触和非侵入性监测。为了实现多参数传感，同时保持RFID标签本身的简单性和低成本，本文提出了一种双芯片表皮器件。在这种情况下，利用极化分集环路天线来激发两个几乎独立的电流模式。所得到的辐射图都是侧面的，因此可以同时从相同的最大距离收集两个独立的数据集。一个3.5 × 3.5 cm的无电池、柔性和柔软的原型提供-13 dBi嵌入式实现增益，读取距离范围为0.6m至1.5m，具体取决于微芯片灵敏度。两个端口的电磁性能保持相似，即使当标签被应用到相当不均匀的身体区域。在体温监测方面，该设备已经在受控和现实环境中进行了实验，证明了在不影响其尺寸和辐射性能的情况下，将RFID表皮设备的传感能力提高一倍的可能性。
Wireless epidermal devices based on Radio frequency Identification (RFID) enable a contactless and non-invasive monitoring of the human body by sampling health parameters directly on the skin. To achieve multi-parametric sensing, while preserving the intrinsic simplicity and the low cost of RFID tags, a dual-chip epidermal device is here proposed. At this purpose a polarization-diversity loop antenna is exploited so that two almost independent current modes are excited. The resulting radiation patterns are both broadside, thus enabling the simultaneous gathering of two independent dataset from the same maximum distance. A 3.5 by 3.5 cm battery-less, flexible and soft prototype provides -13 dBi embedded realized gain with read distances ranging from 0.6m to 1.5m depending on the microchip sensitivity. The electromagnetic performance of the two ports remain similar even when the tag is applied onto rather in-homogeneous body regions. With reference to body temperature monitoring, the device has been experimented in both controlled and real-life environments, demonstrating the possibility of doubling the sensing capabilities of RFID epidermal devices without affecting their size and radiation performances.