http://blog.tokash.org/2007/09/04/iphone-accelerometer-code/ Mon, 01 Dec 2008 21:18:05 +0000 http://wordpress.org/?v=MU hourly 1 http://blog.tokash.org/2007/09/04/iphone-accelerometer-code/#comment-918 Speed8ump Fri, 21 Sep 2007 23:07:12 +0000 http://blog.tokash.org/2007/09/04/iphone-accelerometer-code/#comment-918 Dead reckoning would require two three axis accelerometers, one for axial acceleration and one for rotational acceleration. Without this the device can't distingush between changes in tilt and lateral movement. Dead reckoning would require two three axis accelerometers, one for axial acceleration and one for rotational acceleration. Without this the device can’t distingush between changes in tilt and lateral movement.

]]> http://blog.tokash.org/2007/09/04/iphone-accelerometer-code/#comment-919 Gordon Wed, 05 Sep 2007 07:04:25 +0000 http://blog.tokash.org/2007/09/04/iphone-accelerometer-code/#comment-919 I was wondering about this. How much power does running a simple app draw? Could you run one all the time? Specifically... since cell tower triangulation looks like a wash (public FCC database doesn't have enough data points), I wonder how far you could get with an accelerometer and dead reckoning. (Set your location once, then the app keeps it up to date by watching vectors from the accelerometer...) I was wondering about this. How much power does running a simple app draw? Could you run one all the time? Specifically… since cell tower triangulation looks like a wash (public FCC database doesn’t have enough data points), I wonder how far you could get with an accelerometer and dead reckoning. (Set your location once, then the app keeps it up to date by watching vectors from the accelerometer…)

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