Of cause, after having the fist OpenShoe unit assembled, we were eager to try it out. Our special made shoes are currently at the shoemaker for some minor repair but fortunately we hade some old trashed experiment boots which we could fit the unit in. Below you see that first (real-time) plot produced by the system during the first walk by JO around the lab:
The axis are in meter and the position output was only 4[Hz]. As you can see the first plot was a real lucky shot, almost the exact same start and stop positions. The following longer walks gave varying performance. However, we have only roughly tuned the system parameters with visual inspections of the output of the system on the desktop, so after all we were very satisfied.
Foto of the placement of the OpenShoe unit in the trashed experiment boots