The total trip distance shown in MiX Fleet Manager depends on the type of mobile device that is installed in the asset and the configuration thereof.
Certain unit types, such as the MiX 4000 and MiX 6000, record trip distance on the unit. With the release of MiX Fleet Manager version 23.3, the trip distance value is consumed and stored when available. This will resolve the issue where trip distance and odometer values are the same even when there was no movement during the trip. The MiX 2000, MiX 4000 and MiX 6000 devices do not round off and record up to 3 decimals.
For FM units, the onboard computer automatically calculates the total distance of each sub-trip. The FM units round these values to 100 meters or 1 decimal place. The resulting metric values will then be converted into the user-preferred units of measure, e.g. miles, and rounded according to system rules.
For unit types where the values are calculated in metric and then converted into the user-preferred units of measure, e.g. miles, and rounded according to system rules, there may be a slight difference in the expected sub-trip distance value as indicated below:
2/10/2023 3:28:13 PM Ignition On start Odometer reading 871.29 mi 2/10/2023 3:28:20 PM Sub-trip start occurred Odometer reading 871.29 mi 2/10/2023 3:28:20 PM End of standing, duration 0:00:07 2/10/2023 3:28:20 PM The vehicle departed 2/10/2023 3:28:25 PM Out of green band driving start 2/10/2023 3:32:36 PM Amir Panic start Odometer reading 872.84 mi 2/10/2023 3:32:39 PM Amir Panic end Duration of 0:00:03 value of 872.84 mi Odometer reading 872.84 mi 2/10/2023 3:35:09 PM Over speeding start Odometer reading 873.77 mi 2/10/2023 3:35:10 PM Over speeding end Duration of 0:00:01 value of 31.69 mph Odometer reading 873.77 mi 2/10/2023 3:37:23 PM Out of green band driving summary. Occurred 1.00 times, for a duration of 00:08:59 2/10/2023 3:37:24 PM Ignition On end Duration of 0:09:11 value of 22,548.82 mV Odometer reading 874.64 mi 2/10/2023 3:37:25 PM Ignition Off start Odometer reading 874.64 mi 2/10/2023 3:37:28 PM The vehicle halted. Driving time 0:09:08 2/10/2023 3:37:28 PM Trip end. Duration 0:09:15 Total driving 00:09:08 (98.74%) Standing 0:00:07 (1.26%) Trip distance 3.36 mi, with ending Odometer 874.64 mi
Note: The onboard computers that do not monitor odometer values will keep the distance as accurate as possible. However, what is sent to the server may be rounded off, again causing a slight difference.
Third-party devices measure distance as accurately as possible, using GPS readings, as these devices do not connect to the odometer or CAN of the vehicle.
NOTE: If an FM unit or one of the MiX devices (2000/4000/6000) is connected to the vehicle's CAN, it will synchronize the odometer at the end-of-trip (i.e. ignition off). If the odometer value was adjusted from CAN just before the end-of-trip message was sent, the distance recorded by the unit (in meters) will not match the odometer difference exactly.
Distance on Reports
The reports display distance by adding all sub-trip distances together without rounding (losing the decimals). This is referred to as span distance.
Span distance is more accurate. Updating an odometer value manually will not affect the distance traveled either.