Electro-Quasistatic Animal Body Communication for Untethered Rodent Biopotential Recording.
Electro-Quasistatic Animal Body Communication for Untethered Rodent Biopotential Recording.
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DOI：
10.1038/s41598-021-81108-8
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发表时间：
2021-02-08
影响因子：
4.6
通讯作者：
Sen S
中科院分区：
文献类型：
--
作者：
Sriram S;Avlani S;Ward MP;Sen S
对生物电势信号的连续多通道监测对于了解整个身体至关重要，有助于在神经研究中进行准确的模型和预测。无线技术的当前技术水平依赖于辐射电磁场(EM)，用于非束缚生物势能记录。在这样的传输中，由于电磁场被广泛辐射，导致系统损耗低，因此只接收到这种能量的一小部分。使用身体作为交流媒介(类似于‘电线’)允许将能量遏制在身体内，产生比辐射电磁交流低数量级的能量(S)。在这项工作中，我们引入了动物身体通讯(ABC)，它将以身体为媒介的概念引入到非拴系动物生物电位记录领域。这项工作首次发展了动物身体通信电路和通道损耗的理论和模型。使用这一理论模型，使用现成的组件构建了一个亚英寸[1英寸×1英寸×0.4英寸]的定制传感器节点，该节点能够感知和传输生物势信号，与传统的无线传输相比，通过老鼠的身体的功率要低得多。体内实验分析证明，与传统的无线通信方式相比，ABC成功地将采集到的心电(EKG)信号通过身体进行相关传输，功耗降低了50%。
Continuous multi-channel monitoring of biopotential signals is vital in understanding the body as a whole, facilitating accurate models and predictions in neural research. The current state of the art in wireless technologies for untethered biopotential recordings rely on radiative electromagnetic (EM) fields. In such transmissions, only a small fraction of this energy is received since the EM fields are widely radiated resulting in lossy inefficient systems. Using the body as a communication medium (similar to a ’wire’) allows for the containment of the energy within the body, yielding order(s) of magnitude lower energy than radiative EM communication. In this work, we introduce Animal Body Communication (ABC), which utilizes the concept of using the body as a medium into the domain of untethered animal biopotential recording. This work, for the first time, develops the theory and models for animal body communication circuitry and channel loss. Using this theoretical model, a sub-inch [1″ × 1″ × 0.4″], custom-designed sensor node is built using off the shelf components which is capable of sensing and transmitting biopotential signals, through the body of the rat at significantly lower powers compared to traditional wireless transmissions. In-vivo experimental analysis proves that ABC successfully transmits acquired electrocardiogram (EKG) signals through the body with correlation when compared to traditional wireless communication modalities, with a 50 reduction in power consumption.
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影响因子：
5.4
作者：
NAJAFI, K;WISE, KD
通讯作者：
WISE, KD
DOI：
10.1109/tbcas.2010.2044573
发表时间：
2010-06-01
影响因子：
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