基于CC430的表面肌电信号无线采集系统的研究与设计

Research and design of multi-channel wireless SEMG acquisition system based on CC430

表面肌电信号属于非平稳的生物电信号,其特点是信号微弱、易受干扰.针对表面肌电信号的特点,设计了阵列式表面肌电信号电极与带通信号调理,采集电路和基于单片机CC430的无线数据收发电路.该电路系统能有效覆盖带宽为10～1 000 Hz的表面肌电信号,实现了肌电信号的采集和与上位机的无线射频通信.

The surface EMG is a bioelectricity signal. It is very faint, complex and nonstationary. So we design an array type structure for multi-channel SEMG electrodes, a bandpass filter from 10 Hz to 1 000 Hz, a signal acquisition circuit for SEMG and a wireless data transceiver base on CC430. The system can acquire SE MG signal from 10 Hz to 1 000 Hz and send data to the computer by RF communication.