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Why does the distance data from odometer and GPS data differ?
First and foremost, the data differs because it’s obtained in different ways. Odometer data is received through various electro-mechanical converters and depends on the wheel speed, while GPS fleet tracking system data is obtained by mathematical calculations of the vehicle’s location according to the navigation satellites.
The data accuracy depends on various factors, such as:
- Use of worn or incorrectly sized tyres;
- The presence of permissible odometer errors;
- Temporary satellite signal interferences due to temperature, pressure, humidity and other conditions, etc.
More information on this topic you can find in our blog.