摘要
详细介绍了三轴加速度传感器MMA7260的结构、工作原理及其功能,提出了一种采用MMA7260提取步态特征的设计方案。系统由MMA7260与微控制器MSP430F149组成,由MMA7260捕获步态的加速度信号,由MSP430F149单片机内置的ADC(模/数转换器)对其进行采样和A/D转换后,得到步态的特征数据,并将其存储到存储器中。同时,步态加速度数据也可通过串口被送入计算机,以供不同领域内的步态研究者使用。
In this paper, the structure, working principle and function of three-axis acceleration sensor MMA7260 are described in detail, providing an gait extracting feature system design based on MMA7260. The system is composed of a sensor MMA7260 and a microcontroller MSP430F149. The accelerometer signal from the gait is captured by MMA7260, then through its internal ADC sampling and A/D conversion, the gait feature data are obtained and stored in memory. At the same time, gait acceleration data can also be sent to the computer through the serial port for different researchers of various fields to use.
出处
《信息化研究》
2009年第9期51-53,61,共4页
INFORMATIZATION RESEARCH
