Spatial FOG Reference Manual
Page 34 of 144
Version 2.3
03/05/2018
9
Installation
9.1
Installation Checklist
1. Securely mount the unit to the vehicle following the guidelines in section 9.2.
2. Mount the GNSS antenna following the guidelines in section 9.5 and then
connect the antenna cable between the antenna and the Spatial FOG unit.
3. Connect the connector cable to Spatial FOG and then connect a suitable power
supply as specified in section 9.4.
4. Connect the USB converter cable to the primary port and a computer, open the
Spatial FOG Manager software and click connect.
5. If the unit is mounted in an alignment other than the standard alignment of X
pointing forward and Z pointing down, this alignment ofset will need to be
entered into the Alignment Configuration dialogue in Spatial FOG Manager.
Please see section 9.2.1 for more details.
6. Accurately measure the GNSS antenna ofset from the centre of the Spatial FOG
unit to the central base of the antenna in the body co-ordinate frame (X positive
forward and Z positive down) and enter these values into the Alignment
Configuration dialogue in Spatial FOG Manager. Please see section 9.5 for more
details. Please note that the body axes are always X positive forward and Z
positive down irrespective of any alignment ofset entered in the previous step.
7. Enter the vehicle type in the Filter Options dialogue in Spatial FOG Manager.
8. The system is now ready for use.
9.2
Position and Alignment
When installing Spatial FOG into a vehicle, correct positioning and alignment are
essential to achieve good performance. There are a number of goals in selecting a
mounting site in your application, these are:
1. Spatial FOG should be mounted in an area that is not going to exceed it's
temperature range.
2. Spatial FOG should be mounted away from vibration where possible.
3. Spatial FOG should be mounted within several metres of the GNSS antenna
where possible.
4. If atmospheric altitude is going to be used, the two vents on the sides of Spatial
FOG should not be obstructed.
5. Spatial FOG should be mounted close to the centre of gravity of the vehicle
where possible.
6. As FOG technology is subject to minor bias variations under strong magnetic
fields, Spatial FOG should be mounted at least 0.25 metres away from sources
of dynamic magnetic interference such as high current wiring, large motors and
rotating or reciprocating machinery.
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