Thread: Using accelerometer to know your position
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Master of Gizmo is offline Master of Gizmo
2010-05-10 , 14:00
Posts: 345 | Thanked: 467 times | Joined on Nov 2007 @ Germany
#13
Originally Posted by phpman View Post
I am thinking about the possibility to use the accelerometer to calculate the position, the orientation, the speed and the path.
There are two very basic problems:

1) You need acceleration in all degrees of freedom (translation x/y/z and rotation x/y/z) Wiki link. The accelerometer in the n900 only measures translation, not rotation

2) You'll have to integrate twice. Integrating acceleration gives speed, integrating speed gives position. You'd also sum up errors. Unless your accelerometers are very very precise, you position will drift very soon. The accelerometer in the n900 is pretty inaccurate