4 ms·
Ask HN: How can Google Fit tell if I am cycling?
It did miss a couple cycling sessions but it is mostly accurate. Does it combine the data from GPS and the accelerometer? Are these always on?
- glimcat 12y agoIt's easyish to derive to good accuracy from the accelerometer signal alone (which I believe is always available).
- fprotthetarball 12y agoI'm having the opposite problem. I don't use a bicycle, but Google Fit thinks I do. I assume it's confusing my driving with biking, somehow.
- radq 12y agoI did a project along these times some time back, training a Hidden Markov Model on accelerometer + gyroscope data sampled every 100ms gave basically 100% classification accuracy. Can share the code with you if you are interested.