iPhone加速度计确定运动 [英] IPhone Accelerometer Determine Motion

问题描述

使用加速度计输出，我如何确定用户（安装在腰部的iphone）是否正在行走？

Using the accelerometer output, how do I determine if the user (iphone mounted on waist) is walking?

寻找一个好的算法来确定用户是否是步行以确定活动过渡 - 站立行走或步行站立。

Looking for a good algorithm to determine if the user is walking to determine activity transitions- standing-to-walking or walking-to-standing.

请帮助。

感谢您的时间。

推荐答案

对于以前的项目，我尝试计算加速度矢量的大小，只是设置阈值约2g，在测试中效果很好。一个典型的（硬件）计步器会忽略发生超过一秒钟的单次颠簸，这似乎是一种过滤掉不是行走的偶然运动的好方法。

For a previous project, I tried calculating the magnitude of the acceleration vector, and just setting a threshold of about 2g, and that worked pretty well in testing. A typical (hardware) pedometer will ignore single jolts that happen more than about a second apart, which seems like a good way to filter out occasional movement that isn't "walking".

此外，您可以通过检查数据一段时间来自动调整阈值。

Additionally, you could automatically adjust the threshold by examining the data for a while.

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