Impact detection using smartphone sensor data

摘要

A process implemented in a smartphone assigned to a transport device to detect a collision of the transport device includes receiving a signal generated by a smartphone sensor in response to an event triggered by the movement of the smartphone over time. The procedure also includes transforming the signal into a delay area to produce a two-dimensional representation of the signal in the delay area. The process also includes processing the two-dimensional representation using a Hough transformation,to select from the two-dimensional representation straight lines with a parameter greater than or equal to a specified threshold value. The procedure shall also include the determination of a pattern assigned to the selected straight line, the comparison of the pattern with a specified pattern indicating a collision hazard of the transport facility and the determination of whether the event indicates a collision hazard of the transport facility, on the basis of the comparison.