A Wireless Acquisition System for Surface Bio-Electrical Signals
Surface bio-electrical signals contain useful information for disease diagnosis and human psychological activities.This study presented the use of wireless technologies as a possible alternative to the conventional wired setup for data acquisition of surface bio-electrical signals which include electrocardiogram (ECG),electroencephalogram (EEG) and electromyogram (EMG) signals.Surface bio-electrical signals collected by specific electrodes were amplified,filtered and sent to the A/D conversion circuit in msp430f149 microcontroller for analog-to-digital conversion.Processed signals transmitted by wireless transceiver module nRF24L01 were displayed and stored through the virtual instrument based on LabVIEW.The proposed wireless system presented a transmission frequency of 2.4 GHz,a largest sampling frequency of 1600Hz and a largest transmission rate for 115.2 kb/s,which can accomplish the acquisition of bioelectrical signals reliably and timely.
surface bio-electrical signal wireless system electrode microcontroller
Chun-Fang Wang Li-Xin Zhang Tian-Chen Zhai Zheng Liu Hong-Zhi Qi Bai-Kun Wan Dong Ming
College of Precision Instruments and Optoelectronics Engineering, Tianjin University, Tianjin 300072, China
国际会议
天津
英文
231-235
2012-10-16（万方平台首次上网日期，不代表论文的发表时间）