摘要
研发了一种采用干电极的脑-机接口系统，此系统克服了现有脑机接口用脑电信号采集及信号处理系统笨重而不便于携带的缺点。此系统采用半导体微加工工艺制作的“干”电极作为采集脑电信号的电极，佩戴方便且能长时间使用。整个便携式脑机接口系统在脑电信号采集、处理和传输三个方面都采用了利于便携的设计，信号处理采用专用的集成电路，信号的采集和处理端与信号接收端采用射频芯片收发数据。整个系统的重量只有39g。该脑-机接口系统以人体的专注程度作为控制外部设备的控制信号，经过训练的受试者可以通过脑电信号实现对机器的控制。
A new portable wireless brain-machine interface （BMI） system was designed and fabricated using the techinque of dry electrode. The dry electrode was used in this system to record Electroencephalography （ EEG）, and it was fabricated using the standard micromachining techniques so it is easy to wear. The system was composed of the three parts of signal recording, processing and transmission. Electroencephalography was recorded by the dry electrode, and was amplified, processed by using the application specific integrate circuit （ASIC）, and the processed signal waw transmitted to the receiver by the wireless module. The EEG recording and processing module weighs 39g only. The system can be used to obtain the attention amplitude of the testees, and those trained testees could have the ability to control the machine through the EEG signal.
出处
《高技术通讯》
CAS
CSCD
北大核心
2012年第2期211-216,共6页
Chinese High Technology Letters
基金
863计划（2007AA032427）,973计划（2011CB933203＆2011CB933102）和国家自然科学基金（60776024,60877035,90820002,61078074）资助项目.
关键词
脑-机接口(BMI)
干电极
脑电(EEG)
便携
brain-machine interface （ BMI）, dry electrode, electroencephalography （ EEG）, portable
