13
X
Y
Z
Figure 4-5 Module Coordinate System
Figure 4-6 Car Coordinate System
The normal direction of the shielding cover is Z axis, the long axis is Y and the
short axis is X.
Modular coordinate system and vehicle coordinate system are defined as: X-axis
and R-axis are parallel in the same direction, Y-axis and F-axis are parallel in the
same direction, Z-axis and U-axis are parallel in the same direction
4.6
Installation
The installation of UM220-INS NF module on the vehicle shall be fixed.
4.6.1
Installation Instructions
The UM220-INS NF module must be fixedly connected with the vehicle to prevent any offsets or
vibrations between the module and the vehicle. UM220-INS NF cannot be installed in the suspension
part of the vehicle (with elastic part). When the vehicle is moving, any position offset relative to the
vehicle-based coordinates will cause devastating damage to stop the UM220-INS NF module from
working normally, especially the direction offset.
U
R
F
