The most accurate ignition source is DIN. However, due to vehicle-related technical issues or temporarily disconnected wires, or due to device limitations (e.g., Plug5, Eco BM), this source might not be available.
In such cases, the following alternative sources can be used: movement sensor, power supply voltage, and GPS speed. However, these sources are not universal, and different sources or combinations of sources may need to be used.
Using the wrong combination of sources may lead to inaccurate trip detection. Common issues include 0 km trips, undetected trips, and missing data from the beginning or end of a trip.