Ecodriving g force threshold calculations

Hello Rajeev Gabbar,

You are absolutely correct in describing the formula that Wialon uses to calculate acceleration.
At the moment, the discreteness in Wialon is one second. There are situations when messages come with a difference per second (although in fact, we are talking about milliseconds), therefore, in order to neutralize such situations and calculate the acceleration values, it was decided to make an adjustment. Empirically, a value of 0.7 was chosen. That this correction exists in order to make the algorithm more consistent with real data (it is important to note that in this way we do not increase the acceleration).

The algorithm has been working for more than 7 years and during this time did not raise a question. Our algorithm primarily aimed at fixing the fact of violation and setting penalty points.

The question will be solved automatically when we add the ability to work with milliseconds in Wialon (then we will have the exact time and we will not need any correction values).
If it is essential for you to obtain accurate numerical values of acceleration, then you should choose terminals with internal algorithms for calculating this value, not GPS.