北京生物医学工程

一种基于MSP430的便携式脑电实时采集分析系统

A portable EEG real-time acquisition and analysis system based on MSP430

作者：唐晋张春雨刘伟峰唐晓英

单位：                                 北京理工大学生命学院（北京100081）            

关键词：脑电采集；MSP430单片机；实时性；便携式

分类号：

出版年·卷·期（页码）：2015·34·1（79-84）

摘要：

目的设计了一种基于MSP430的小型便携式脑电实时采集分析系统，以方便迅速地采集脑电并进行实时分析。方法根据脑电信号特性，设计了前端放大电路及滤波电路。系统以MSP430为核心，信号采集后通过PL2303进行USB传输，同时，PC端接收数据并通过软件实时处理。测试实验时，借助信号发生器产生理想信号，经A/D转换后，在MSP430控制下通过USB传输到PC端并进行实时处理。结果经多次试验，使用该系统在PC端得到较好的信号。后续对正常人在午休（浅睡眠）和清醒放松（听音乐）两种状态下进行实测及实时频域分析，得到较好结果。结论该系统便于携带，使用方便，实用性强，特别适用于高等院校实验室科学研究，应用潜力大。

Objective A portable EEG real-time acquisition and analysis system based on MSP430 was designed. Methods According to EEG characteristics, front-end amplifier circuit and filter circuit were designed. MSP430 was chosen as the core in this system. After acquisition, the signal data were transferred to PC by USB through PL2303. The data were received by PC and processed by software in real-time. In text experiment, the ideal signal produced by a signal generator was conversed by an AD converter. Under the control of MSP430, the signal was transmitted to the PC through the USB port and was processed in real-time. Results An acceptable signal was obtained at PC by using this system. In the following text, the EEG signals of a normal subject under two states: lunch break (light sleep) and wakefulness relax (listening to music), were obtained and analyzed in frequency domain in real-time. And the results were good. Conclusions The system is easy to carry and use, with wide application prospects, especially in college laboratories.

参考文献：

［1］陈长松,张跃进.动态脑电记录盒的发展史及英国牛津Medilog MR95动态脑电记录盒常见故障分析与维修［J］.中国医药科学,2012, 2(7):154-155.
［2］徐栋君，和卫星，张华. 新型多通道脑电信号采集系统的设计［J］. 医疗卫生装备，2006，27（6）：7-8.
Xu Dongjun, He Weixing, Zhang Hua. Design of new multi-channel EEG signal acquisition system［J］. Chinese Medical Equipment Journal, 2006, 27（6）：7-8.
［3］李美，杨世清. 脑电信号采集系统设计方法［J］. 自动化与仪器仪表，2007，14（6）：18-24.
Li Mei, Yang Shiqing. Design method of brain electrical signals brain gathering system［J］. Automation & Instrumentation，2007，14（6）：18-24.
［4］Sukumaran，Enyi，Sun Shuo，et al. A low-power, reconfigurable smart sensor system for EEG acquisition and classification ［J］. Source: 2012 IEEE Asia Pacific Conference on Circuits and Systems (APCCAS 2012)，2012： 9-12.
［5］宋莉，孟庆建，张光玉,等. 基于DSP的便携式动态心电监护仪的研制［J］. 中国医疗器械杂志，2009,33（6）：54-60.
Song Li, Meng Qingjian, Zhang Guangyu, et al. Development of a portable dynamic state ECG based on DSP［J］. Chinese Journal of Medical Instrumentation，2009,33（6）：54-60.
［6］Marcelo Alejandro，Spinelli, Enrique Mario. A multichannel EEG acquisition scheme based on single ended amplifiers and digital DRL Haberman［J］. Source: IEEE Transactions on Biomedical Circuits and Systems，2012： 614-618.
［7］花汉兵. 基于MSP430F449单片机的数据采集实验设计［J］. 实验室研究与探索，2007,26（5）：24-28.
HUA Hanbing. A design of data acquisition system based on MSP430F449 singlechip［J］. Research and Exploration in Laboratory, 2007,26（5）：24-28.
［8］陈其松. 流媒体存储系统的高速USB接口研究与实现［J］. 微电子学与计算机，2008，25（5）：94-96.
Chen Qisong, Chen Xiaowei, Wang Guomei. Research and implementation on high speed USB interface storage system for stream media［J］. Microelectronics & Computer, 2008，25（5）：94-96.
［9］王西龙. 通用串行总线脑电信号采集电路设计［J］. 现代电子技术，2009，32（17）：22-27.
Wang Xilong. Design of EEG acquisition circuit based on USB［J］. Modern Electronics Technique，2009，32（17）：22-27.

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