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Tracking (Continued)
Manual Tilt Mode
It is highly recommended that Auto tilt mode is used to start tracking when using
SceneScan. However, if a situation is encountered where tracking performance is
unacceptable when using Auto tilt mode then the option is available to manually select a tilt
angle.
Here are some general guidelines to follow when using Manual tilt mode:
1. Try to select regions of the scene that have a high level of vertical consistency.
2. If the vessel will be maneuvering around the structure then consider whether structure
on different sides of the structure are also vertically consistent.
3. Watch the BEV to see how consistent the image of the structure is before starting
tracking. If the scene is changing dramatically then tracking is unlikely to be stable and a
different tilt angle should be chosen.
4. Small tilt angles will generally provide better tracking performance. This is particularly
true when the range to the asset will be changing significantly during a tracking session.
5. When tracking off a rig, substructure tends to provide more robust tracking performance
than superstructure.
Enabling DP Output
Once tracking, the dashboard will display tracking and scene data, but
the Sensor will not have the DP Feed enabled. The reason for this is to
allow the operator to review the detected scene, and to set a Scene
Reference Point of their choice before enabling DP Feeds.
To Enable the DP Feed:
1. Ensure that the Dashboard is In Command (see Command Mode).
2. Press the Enable DP Feed button.
3. Press “Apply” on the Apply/Cancel pop-up.
The DP Feed will now be enabled, and the dashboard will change to
indicate that tracking is fully enabled.
Tracking Lost
If the SceneScan loses track then the following message will be
displayed in the coordinates pane:
At this point the operator will need to stop and restart tracking.
Vertical features visible from
multiple sides of a rig are good
when wanting to transition around
the asset.
Different features closely located
at slightly different elevations are
oor targets to track off. Protruding
features of the assest are also not
advised to track off.
Summary of Contents for 20-0253
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