Hi, I am trying to assess crash severity based on the acceleration data array that is dumped from teltonika devices.
This data array contains accelerometer readings at 40Hz (40 readings per second) in X, Y, Z.
From the crash visualizer software that teltonika provides, i can see that they are filtering the signal, which is something very common in the crash testing industry (signal filtering). There are many different filters used for filtering (denoising) accelerometer data. I would like to ask if you know what is a good filter algorithm for a teltonika device, or even which filter is teltonika using.
Additionally, apart from the 2 examples that teltonika provides on their software, does anybody have a few more valid and real vehicle crash acceleration data arrays examples?
ps.1 Here an image of a rear crash event on the teltonika crash visualizer software
ps.2 And here an image of a crash event acceleration array from a teltonika fmb920 without filtering. Note that this is not a real accident, it was likely triggered by a pothole. (green is Y axis and blue is Z axis - X axis is similar to Y) (units of vertical axis in m/s2 and horizontal is number of readings - 40 readings per seconds)