摘要
介绍了一种便携式多路微弱医学生物电信号处理系统,用户可根据实际的需要对电极进行选择,从而实现对脑电或心电信号的实时采集,进而对其进行数据处理并显示波形和存储数据。该系统采用德州仪器(TI)公司的ADS1198为核心的模拟前端电路实现脑电或心电信号的采集、放大、隔离等预处理操作,利用Altera公司的FPGA芯片Cyclone Ⅱ EP2C70F896C6对数据进行处理,并在TRDB_LTM液晶屏上显示波形。该系统精度高、体积小、功耗低,具有较好的实用性和可扩展性。
A portable multichannel bioelectrical signal processing system is proposed. Through elec- trode selection according to the actual needs, the system can collect, process, display and store EEG or ECG signal in real-time. Texas Instruments （TI） Company＇s ADSl198 is employed as the core for the analog front-end circuit, realizing EEG or ECG acquisition, amplification, isolation and other pre- treatment operations. Altera Company＇s FPGA chip Cyclone U EP2C70F896C6 is used for processing the data, displaying waveform in the LCD screen of TRBD_LTM. The system has high accuracy, small size, low power consumption, good practicality and scalability.
出处
《液晶与显示》
CAS
CSCD
北大核心
2014年第2期245-250,共6页
Chinese Journal of Liquid Crystals and Displays
