Smart sensor data from tracking cobble movement in rolling and sliding experiments

Experiments were carried out for different slopes, namely 18˚, 25˚, 30˚, 35˚, 40˚, 45˚, 50˚, and 55˚ . The experiments were recorded by a GoPro camera filming the experiments frontally with a 4K resolution and a frame rate of 30 fps. A sensor equipped with an accelerometer, a gyroscope, and a magnetometer was installed within the cobble. The accelerometer and gyroscope had an acquisition frequency set at 59.5 Hz, whereas the magnetometer recorded at 4 Hz. The cobble motion is described by the smart sensor data and the position computed from camera recordings by a detection algorithm.
Rolling experiments were repeated three times and sliding experiments repeated four times. For each test, given the different acquisition frequencies, data were upsampled so that sensor-based data and camera-based data have the same number of entries when referring to the same test, providing a time series describing cobble motion over time. After the upsampling, the timestep between any successive entries is 0.017 s. Additionally, filtered sensor- data and camera-based data are also provided to get more reliable data on cobble motion.

This dataset is included in the following collections

Smart sensor data from tracking the movements of wooden dowels, a cobble and a physical analogue of large wood dam in laboratory experiments