Spatial Reference Manual
Page 41 of 158
Version 4.4
04/06/2019
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 to the vehicle following the guidelines in section 9.5
and then connect the antenna to Spatial unit.
3. Connect the connector cable to Spatial and then connect the USB end to a
computer.
4. Open the Spatial Manager software on the computer and click connect.
5. If the unit is mounted in an alignment other than standard alignment of X
pointing forward and Z pointing down, this alignment offset will need to be
entered into the Alignment Configuration dialogue in Spatial Manager. Please
see section 9.2.1 for more details.
6. Accurately measure the primary GNSS antenna offset from the centre of the
Spatial unit to the centre 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 Manager. Please note that the body axes are
always X positive forward and Z positive down irrespective of any alignment
offset entered in the previous step.
7. Enter the vehicle type in the Filter Options dialogue in Spatial Manager.
8. Perform a magnetic calibration on the unit as described in section 10.5. If
magnetic calibration is going to be too difficult to perform on the vehicle or the
operating environment has high levels of magnetic interference then it is
recommended to disable magnetic heading in Filter Options and use only GNSS
velocity heading. If magnetic heading is disabled a magnetic calibration does
not need to be performed.
9. The system is now ready for use.
9.2
Position and Alignment
When installing Spatial 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 should be mounted away from high levels of vibration where possible.
2. Spatial should be mounted in an area that is not going to exceed its
temperature range and mounted in a manner that will properly dissipate heat;
please contact
for advice specific to your
application.
3. The two vents on the sides of Spatial should not be obstructed.
4. If magnetic heading is going to be used, Spatial should be mounted at least 0.5
metres away from sources of dynamic magnetic interference i.e. high current
wiring, large motors, moving steel masses and rotating or reciprocating
