基于虚拟仪器技术的数字脑电图信号采集系统的研制

[Development of a digital EEG signal acquiring system based on virtual instrument technology].

作者信息

Ying Jun, Chen Guang-Fei, He Shi-Lin

机构信息

Lab of Biomedical Engineering, PLA General Hospital, Beijing.

出版信息

Zhongguo Yi Liao Qi Xie Za Zhi. 2009 Sep;33(5):332-5.

PMID:20073237

Abstract

This paper introduces an 16-lead digital EEG signal acquisition system, which applies MCU MSP430 as central control unit with high performance analog devices and high speed multi-channel, multi-bit analog-to-digital converter as peripheral to retrench analog circuit. Data is transferred to PC by USART interface. Software on PC based on virtual instrument technology realizes real-time detection, display and storage. The system has many advantages such as high precision, stable performance, small volume and low power dissipation, thus provides a new means for digital EEG signal acquisition.

摘要

本文介绍了一种16导联数字脑电图信号采集系统，该系统采用高性能模拟器件和高速多通道、多位模数转换器作为外围设备，以单片机MSP430作为中央控制单元，精简了模拟电路。数据通过USART接口传输到PC机。基于虚拟仪器技术的PC机软件实现了实时检测、显示和存储。该系统具有精度高、性能稳定、体积小、功耗低等优点，为数字脑电图信号采集提供了一种新手段。