摘要
介绍一种应用于可穿戴式无线脑电信号采集系统设计方案。系统控制器采用16位的MSP430F169单片机,其内部的12位A/D对放大滤波后的脑电信号进行采集,然后通过SPI口将采集到的16通道的脑电信号数据写入到CC2500的寄存器中发射出去,接收端同样通过单片机将CC2500的接收寄存器中数据读出,再由UART通过USB转换芯片传入计算机用于显示和进一步的分析处理。该系统有着低功耗和便携式等优点。
The design scheme of a wearable wireless acquisition system for EEG signal is introduced. A 16 bit MSP430F169 MCU is adopted in the system controller, in which 12-bit ADC is used to aquire the amplified and filtered EEG signal. The acqired EEG signal data of the 16 channels is writen to the register of CC2500 via SPI and then emitted. When the receiver obtains the data, the data from the receiver register of CC2500 is read out by MCU. Finally the data is sent to computer by UART through USB for display and further processing. This system has the advantage of low power consumption and is portable.
出处
《现代电子技术》
2010年第18期21-24,共4页
Modern Electronics Technique
基金
上海市科技创新行动计划项目(09511502500)
西部交通建设科技项目(2100318810019)
