ifm Vision Assistant O3M
60
9.2 World coordinate system
The 3D data measured by the device is provided in the world coordinate system . To ensure that the world
coordinate system can be adapted to the application, the transformation between the device coordinate
system and the world coordinate system must be communicated to the system .
The device offers manual setting of the world coordinate system and automatic fine adjustment of the
world coordinate system .
The world coordinate system is defined as a right-handed, right-angled coordinate system . In the
ifm Vision Assistant, the pixels are always drawn in the currently set world coordinate system .
The world coordinate system is represented with its three axes (1) . The coordinate origin is represented
by a cross (2) . The rectangular pattern on the X/Y level represents the ground level (grid 1 m) . The Z axis
looks up from the ground level . The X axis looks in the machine's direction of travel .
In the illustration, the device's visible range is dark green . The visible range of the illumination unit is
light green in the illustration . The areas are an aid to determine if the overlapping area of device and
illumination unit sufficiently covers the working area
9.3 Reference point of the device
The reference point of the device is defined in order to determine the correct position of the device in the
world coordinate system .
2
1
The reference point of the device is determined via the lateral reference socket (1) . The reference socket
cuts the coordinate origin in the middle of the sensor (2) .
