便携低功耗三维加速度采集卡的设计

目前加速度数据采集记录装置存在两类问题,一是部分采集装置体积较大,二是便携式采集终端采用数据线或无线通信方式与工作站相联系,存在传输距离有限、通信信道易受干扰。本文提出一种便携式低功耗三轴向加速度采集卡的设计方案,借助低功耗微控制器、加速度传感器,以及大容量SD存储卡实现加速度数据的采集与存储。整个装置体积小巧、携带方便,可以长时间采集数据。实验数据表明该采集卡可以克服现有加速度采集装置在使用过程中的空间和时间限制,可以准确获得反映测试者运动状态的加速度数据。

Portable and low power three dimension acceleration data collection card

Two problems exist in acceleration data collection set at present.One problem is large volume; another is transmission distance limitation and communication channel deterioration in the portable sets,which communicate with connected cable or wireless transmission.A design of portable,low power,three dimension acceleration collection card was reported.Using ultra low power MCU,low current cost acceleration sensor and large capability SD memory card,the data collection card possesses dramatically advantage in potable,ultra low power and the high sensitivity.Experiment shows that the acceleration data of sports can be collected veracious without the restrictions of space and time.