基于表面肌电信号的磨牙信号监测系统设计

Design of molar signal monitoring system based on surface electromyography

目的 :设计并实现一套基于表面肌电信号的磨牙信号监测系统。方法 :该系统的硬件电路主要由电极、信号调理电路、STM32微处理器、电源管理模块、SD存储模块以及控制与显示模块等组成。前端电极采集得到咀嚼肌部位的表面肌电信号,原始信号经调理电路放大、滤波,送至单片机采样、再处理,SD作为存储介质存储数据;通过控制与显示模块实时显示咀嚼肌部位的表面肌电信号,并通过简单算法识别磨牙信号。结果:该系统可以清楚地反映咀嚼肌运动的情况,能够实现对磨牙信号的识别。结论:该系统可用于咀嚼肌部位肌电信号的实时采集、显示,可实现数据存储并使系统便携化,具有一定的医学参考价值。

Objective To design and implement a molar signal monitoring system based on surface electromyography.Methods The system had the hardware circuit composed of electrode, signal conditioning circuit, STM32 micro processing circuit, power source management module, SD storage module, control and LCD module and etc. The surface electromyography（sEMG） of masseter muscle collected by electrode were amplified and filtered by signal processing circuit, and the processed signals were collected by STM32 microprocessor for sampling and digital filtering. Then the data were stored by SD and displayed in wave form on control and LCD module, and molar signal were recognized by algorithms. Results The system could reflect the motion of masseter muscle and recognize molar signals. Conclusion The portable system could collect,display and store s EMG in real time, which has certain reference values in medical field.