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46 en | Advanced Features VG4 AutoDome Modular Camera System
F.01U.089.433 | 4.0 | 2008.09 User’s Manual Bosch Security Systems, Inc.
– Mount/Mounting Surface Stability
– Mount the camera in the most stable position. Avoid locations affected by vibrations,
such as those caused by a roof-top air conditioner. These vibrations may cause
complications when the camera zooms-in on a target.
– Use the pendant arm mount, if possible. This mount option provides the most
stability for the camera.
– Use guy wires to protect against strong winds if using the parapet mount.
– Field of View
– Select a location and viewing angle that allows the flow of people to move across
the camera’s field of view.
– Avoid motion that moves directly towards the camera.
– Avoid locations that attract large numbers of people, such as retail stores or
intersections.
– Unwanted Motion
– Use the Virtual Masking feature (see Section 7.3 Virtual Masking (500i Series Only),
Page 47) to mask unwanted motion from trees or cars.
Bosch recommends that you draw the virtual mask 10% larger than the object to be
masked.
– Avoid neon lights, flashing lights, night time lights, and reflected light (from a
window or mirror, for example). The flickering of these lights can affect the
AutoTrack operation. Use a Virtual Mask to hide these type of lights if they cannot be
avoided.
– Check the virtual mask periodically to ensure that it still covers the entire object to
be masked. Adjust the mask if necessary.
7.2.2 AutoTrack Optimization
The AutoDome achieves optimum tracking performance when the focal length of the lens
during AutoPan is as close to the focal length of the lens during an AutoTrack operation. The
ambient light conditions also affect the AutoTrack performance.
Dynamic Light Conditions
The ambient lighting conditions affect AutoTrack performance, especially in outdoor dynamic
lighting conditions that change daily or hourly. To optimize the AutoTrack performance under
changing light conditions, Bosch recommends that you configure the AutoTrack Sensitivity
and the AutoPan speeds.
Bosch recommends setting the AutoTrack Sensitivity to Auto and suggests the following
AutoPan speed for outdoor conditions:
If you need a higher AutoPan speed, set the AutoTrack Sensitivity to a value between 1 and 10
in the Advanced Feature Setup menu.
i
NOTICE! The VG4 AutoDome Service Pack 1.05 contains upgrades that allow the AutoDome to
activate the AutoTrack while in AutoPan mode.
Camera Focal Length Maximum Suggested AutoPan Speed
(degrees/sec)
Near-field (Wide Angle) 5
Mid-field 2
Far-field (Telephoto) 1