Question

I have been experimenting with the Core Motion framework to detect a user spinning around, say on a merry-go-round, holding an iphone in his hand. There are ways to detect the device motion around its own axes, but what is a good way to detect the iPhone spinning in circles? Thanks

Answer 1

你可以使用吉罗镜。参看:Gyroscope example

你们必须提醒的是,它只能使用Piter4和Pi4S。

Answer 2

有一种变质的情况是,你可能陷入麻烦,只有磁力计(斜体)能够帮助这一特定情况。

如果你将装置(a)放在固定位置的桌上,那么(b)在完全横向轮换上,将慢慢慢慢地获得同样的<>平级传感器读物。在这两种情况下,吉罗和塞勒计的读数都是不变的,尽管读数在数量上有所不同。可悲的部分是:吉罗偏差错误可能导致(a)像(b)和反面错误。在这一特殊情况下,你需要绕行吉罗河流。案件(a)是电话的典型情况。

Apart from this degenerate case, gyroscopes and accelerometers with sensor fusion are sufficient to track arbitrary rotations of the device.

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