Non-contact human machine interface based on bio-interaction with wireless power transfer features
Non-contact human machine interface based on bio-interaction with wireless power transfer features
复制标题
基于生物交互的非接触式人机界面，具有无线电力传输功能
DOI：
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发表时间：
2015
期刊：
影响因子：
--
通讯作者：
Changzhi Li
中科院分区：
文献类型：
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作者：
Zhiming Xiao;D. Genschow;Chenhui Liu;Yan Li;Changzhi Li
本文提出了一种非接触式人机界面，用于感知人体的位置或生物活动。基于电力传输线圈对人体物理形状、阻抗和介电常数的电学响应，该结构易于集成，并允许智能设备读取包括人体物理位置或心肺活动在内的信息。商用WPT/NFC线圈集成在LC谐振箱中，可感应人类活动并相应地改变振荡频率。高灵敏度是通过利用混频器将谐振频率从几MHz的载波频率向下转换到基带来实现的。通过将频移与手线圈距离进行关联来进行实验。作为例子，当距离小于10 mm时，结果显示了很好的手部位置指示。通过合理布置多个线圈，通过智能设备的进一步处理，可以很容易地提取手部位置信息。
This paper presents a non-contact human machine interface to sense the position or bio-activity of human body. Based on the electrical response of power transferring coil to the physical shapes, impedance, and dielectric constant of human body, the proposed architecture can be easily integrated and allows the smart devices to read information including physical position or cardiorespiratory activity of human body. A commercial WPT/NFC coils incorporated in an LC resonate tank senses the human activities and changes the oscillating frequency accordingly. High sensitivity is achieved by utilizing a mixer that down converts the resonant frequency to baseband from a carrier frequency of several MHz. Experiment was carried out by correlating the frequency shifts to the hand-coil distance. As an example, the result shows good indication of hand position when the distance is below 10mm. By proper arrangement of multiple coils, the information of hand position can be easily extracted through further processing by smart devices.
影响因子：
4.6
作者：
Teichmann, Daniel;Foussier, Jerome;Walter, Marian
通讯作者：
Walter, Marian