I am trying to use my accelerometer on my mobile device fitness band to find the speed of walking and running.
I conducted my experiment of walking and running on treadmill where I asked a person to walk and run on the same speed. ( Speed was 3 km/hour )
I created a model to find the speed using numerical integration method. ( I used trapezoid method of integration). But the model is not correctly predicting the result. Even the walking speed is very different from the running speed.
The data returned from the accelerometer is in m/s2. I am getting acceleration data of X,Y and Z axis.
It would be grateful if some can help me out or can tell me a model to find velocity from acceleration data. My device records the signal at 50 Hz frequency.