基于MMA7260的人员脚步声采集系统设计  

Design of human footstep signal acquisition system based on MMA7260

作　　者：徐彭[1] 孙宏志[1] 周文军[1] 韩亮亮[1] 

机构地区：[1]中国矿业大学机电学院计算机系,北京100083

出　　处：《微型机与应用》2013年第1期23-25,共3页Microcomputer & Its Applications

摘　　要：设计了一种人员脚步声采集系统,该系统以STM32微控制器为核心,采用三分量加速度传感器MMA7260采集人员的脚步声信号。在与上位机的通信过程中,STM32采用无线发射模块或者串口向上位机发送数据,上位机在接收到数据后将上传的数据转换成模拟波形。大量实验数据表明,该系统能够准确地采集到人员的脚步声信号,为后续的人员脚步声的特征提取及多人脚步声信号分离提供了准确的原始数据。The paper designs a human ibotstep signal acquisition, which uses STM32 as the core. The system uses MMA72260 to acquire human footstep signal. In communication with upper computer, STM32 uses wireless transmit modules or USART to send datas. Then, upper computer transforms datas into analog wave. Many experimental datas show that the signal acquisition system can acquire accurate human footstep signal, which provides lots of raw data for feature extraction and human footstep signal separation.

关 键 词：加速度传感器 人员脚步信号 MMA7260 STM32 信号采集 

分 类 号：TP274.2[自动化与计算机技术—检测技术与自动化装置]