Cars are definitely supporters of tracking locators. Anyone who has used GPS tracking locators knows that GPS tracking locators have the function of mileage statistics, which can count the number of kilometers traveled by vehicles.

　　Before going deeper, it is generally believed that:

　　The mileage counted by the GPS tracking locator should be consistent with the actual mileage of the vehicle's kilometer meter;

　　The GPS tracking locator statistic mileage should be consistent with the mobile phone navigation mileage;

　　GPS tracking locator and car navigation have the same positioning accuracy.

　　In fact, the mileage statistics of the GPS tracking locator are based on the positioning data uploaded to the server by the GPS tracking locator. This positioning data may be affected by factors such as signal, environment, equipment failure, etc. For example, the mileage of GPS tracking locator is usually less than the vehicle odometer when there is no satellite signal drift. When there is satellite signal drift, the statistical mileage is higher than the actual mileage. need more. Therefore, the statistical data will have errors with the actual driving records. Generally, the statistical data of the GPS tracking locator is only for reference.

　　The mileage statistics of the GPS tracking locator are calculated according to the formula set by the software: (car kilometers = time × speed). When the time and speed data are inaccurate, the vehicle-kilometer data is also inaccurate. The following are several main factors that affect the mileage.

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