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arXiv 2203.02102eess.SPcs.HCcs.SYeess.SY
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BEATS:一个开源、高精度、多通道EEG采集工具系统

BEATS: An Open-Source, High-Precision, Multi-Channel EEG Acquisition Tool System

Bing Zou, Yubo Zheng, Mu Shen, Yingying Luo, Lei Li, Lin Zhang

AI总结:

针对闭源EEG采集系统难以扩展和二次开发的问题,本文提出开源32通道BEATS系统,实现4k Hz无线采集与微秒级稳定传输,并通过24小时测试验证零丢包和低延迟。

摘要:

稳定且准确的脑电图(EEG)信号采集是非侵入式脑机接口(BCI)技术的基础。常用EEG采集系统的硬件和软件通常是闭源的,其无法灵活扩展和二次开发的问题是实时BCI研究的一大障碍。本文提出了北京邮电大学EEG采集工具系统,命名为BEATS。该系统实现了从硬件到软件的完整系统,由模拟前端、微处理器和软件平台组成。BEATS能够通过无线传输采集32通道EEG信号,并保证4k Hz采样率。与许多EEG领域使用的最先进系统相比,它表现出更优的采样率。通过采用直接存储器访问、先进先出和定时器等技术,采集的精度和稳定性被保证在微秒级。研究在连续24小时采集期间进行了评估。数据丢失为0包,平均最大延迟仅为0.07 s/h。此外,作为一个开源系统,BEATS提供详细的设计文件,并采用插件结构和易于获取的材料,使其能够被快速复现。BEATS的原理图、源代码和其他材料可在https://github.com/buptantEEG/BEATS获取。

英文摘要:

Stable and accurate electroencephalogram (EEG) signal acquisition is fundamental in non-invasive brain-computer interface (BCI) technology. Commonly used EEG acquisition system's hardware and software are usually closed-source. Its inability to flexible expansion and secondary development is a major obstacle to real-time BCI research. This paper presents the Beijing University of Posts and Telecommunications EEG Acquisition Tool System named BEATS. It implements a comprehensive system from hardware to software, composed of the analog front-end, microprocessor, and software platform. BEATS is capable of collecting 32-channel EEG signals at a guaranteed sampling rate of 4k Hz with wireless transmission. Compared to state-of-the-art systems used in many EEG fields, it displays a better sampling rate. Using techniques including direct memory access, first in first out, and timer, the precision and stability of the acquisition are ensured at the microsecond level. An evaluation is conducted during 24 hours of continuous acquisitions. The data loss is 0 packets and the average maximum delay is only 0.07 s/h. Moreover, as an open source system, BEATS provides detailed design files, and adopts a plug-in structure and easy-to-access materials, which makes it can be quickly reproduced. Schematics, source code, and other materials of BEATS are available at https://github.com/buptantEEG/BEATS.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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