Heading
The direction of travel at the antenna/IMU location.
Heading_IMU
The forward direction of the IMU.
It is important to try to align the IMU/VIPS in the forward direction of the vehicle frame as accurately as possible as the channel Heading_IMU is dictated by the forward direction of the IMU.
Heading _IMU2
This value is the Heading_IMU plus an alignment compensation.
The VBOX IMU integration includes a process that will compensate for IMU mounting errors.
When you are using a single antenna unit, the VBOX detects when the vehicle is travelling in a straight line, compares average Heading and Heading_IMU and adds the difference to Heading_IMU to create Heading_IMU2.
When you are using a dual antenna unit, the VBOX uses the dual antenna True Heading to compare the average True Heading and Heading_IMU. It then adds the difference to Heading_IMU to create Heading_IMU2.
In a VIPS system, the VBOX unit detects when the vehicle goes from 0 to 20 km/h in a straight line and compares average Heading and Heading_IMU. It then adds the difference to Heading_IMU to create Heading_IMU2.
Heading
The direction of travel at the antenna/IMU location.
Heading_IMU
The forward direction of the IMU.
It is important to try to align the IMU/VIPS in the forward direction of the vehicle frame as accurately as possible as the channel Heading_IMU is dictated by the forward direction of the IMU.
Heading _IMU2
This value is the Heading_IMU plus an alignment compensation.
The VBOX IMU integration includes a process that will compensate for IMU mounting errors.
When you are using a single antenna unit, the VBOX detects when the vehicle is travelling in a straight line, compares average Heading and Heading_IMU and adds the difference to Heading_IMU to create Heading_IMU2.
When you are using a dual antenna unit, the VBOX uses the dual antenna True Heading to compare the average True Heading and Heading_IMU. It then adds the difference to Heading_IMU to create Heading_IMU2.
In a VIPS system, the VBOX unit detects when the vehicle goes from 0 to 20 km/h in a straight line and compares average Heading and Heading_IMU. It then adds the difference to Heading_IMU to create Heading_IMU2.
