Having made a hat to measure my posture as I walk around different parts of the city, I’ve spent the last few days testing it and getting a feel for what sort of results it produces.
Pretty much exactly as I was expecting really, which is probably a good reason to avoid drawing any sweeping conclusions from it – at least until I’ve got to the stage where I collect data without being aware that I’m doing so…
On the plus side, it does reveal lots of unexpected things – posing yet more questions in the process – and that, I believe, is the sign of a good tool!
For these renderings, green represents a neutral head position, with the pointer getting redder as my gaze is lowered. Here are some noticings:
It’s becoming apparent that I need to include some sort of calibration so that I can more reasonably compare tracks from different walks. Currently, differences in how I’m wearing the hat are too easily read as differences in head angle when I put all the traces on the same diagram.
I’ve also expanded the arduino code so that I log date, time, latitude, longitude, altitude, course, speed, bearing, pitch and roll. I think there are some very interesting potential correlations to investigate (for example: when my head angle decreases, do I also walk faster?) and, whilst I may not be investigating them right now, I want to make sure I’ve got the data when I do!