基于章鱼吸盘柔性干电极的可穿戴脑电采集系统

Wearable EEG acquisition system based on octopus sucker flexible dry electrode

研制了一种基于章鱼吸盘仿生结构的柔性干电极的可穿戴脑电(EEG)采集系统。干电极在硅胶(ecoflex)上实现章鱼吸盘结构,其利用吸盘的吸力可便捷地吸附,且易于剥离,可多次重复使用。EEG采集系统包括采用ADS1299的集成模拟前端模块,ZYNQ的数据处理与控制模块和基于WiFi协议的无线传输模块,整体尺寸为52 mm×35 mm×12 mm,使用锂电池供电,PC端通过Python编写接收程序实时显示存储EEG信号。系统使用章鱼吸盘电极得到的EEG信号质量和传统湿电极相当。

A wearable electroencephalograph(EEG)acquisition system based on the flexible dry electrode of the octopus sucker bionic structure is developed.The dry electrode realizes the octopus sucker structure on the ecoflex.It can be easily absorbed by the suction of the octopus sucker, it is easy to peel off and reuse.The EEG acquisition system includes an integrated analog front-end module using ADS1299,a data processing and control module using ZYNQ,and a wireless transmission module based on WiFi protocol.The overall size is 52 mm×35 mm×12 mm, powered by a lithium battery, and the computer uses Python to write a receiving program.It can display and store EEG signals in real time.The quality of the EEG signal obtained by the system using the octopus sucker electrode is comparable to that of the traditional wet electrode.