这些手机的固件会随时记录手机加速度计的数据，然后把这些数据发送到公司管理中心的数据库中进行处理。

The phone firmware sends logs of accelerometer data to a central database for processing.

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威尔逊教授解释说，该仪器是利用加速计来测量人体活动，大小和一块手表差不多，只要佩戴在腰带上或手腕上就可以记录一个人了。

Professor Wilson explained that it uses detect body movements and is little bigger than a watch, can be simply worn on a belt or the wrist to record information about the way a person walks.

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再用振动信号记录系统记录此时实验激励的振动加速度的均方根值。将记录的数据利用最小二乘和优化设计的方法拟合成振动频率计权曲线。

The data were fitted to the same form of the frequency weighting Wk of ISO 2631-1 with the least square method and optimization of parameters.

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