Dahua IR High Speed Dome Camera User Manual page 10

conveniently configured and carried out through the OSD menu. These
functions include: Preset Positions, Tours, Pattern Scan, Left & Right Scan,
Privacy Mask, Alarm, Language Choosing, and the configuration of the
parameters of the Camera Module etc. The user can also edit the title of the
IR High-speed Dome Cameras and the preset positions through multiple
Input Modes, so that the titles are easier to be remembered and identified.
The above functions make the IR High-speed Dome Camera really realize
intelligent control and in-time monitoring.
4. Trace the Target
The users can control the movement of the unit by operating the joystick
of the keyboard so that they can trace the moving object or change the
monitoring area. The angle of view or the size of the image of the object can
be changed through adjusting the focal length. In the default Auto-focus,
Auto-Iris state, following the movement of the unit, the lens will quickly adjust
itself to get clear image according to the change of the object.
5. Automatic Adjustment of Focal Length/Movement Speed
When the focus is long and in the mode of manual adjustment, due to the
high sensitivity of the IR High-speed Dome Camera, even the slightest
movement of the joystick would make the image move quickly, which causes
image losses. Based on human design, the IR High-speed Dome Camera
can automatically adjust the horizontal and vertical moving speed of the
pan/tilt according to the current focal-length, which makes the manual
target-tracing operation much easier.
6. Configure and Invoke Preset Positions
The preset position function works in this way: the IR High-speed Dome
Camera stores the data of the pan/tilt angles and lens focal-length in current
state; when needed, invoke these data, then promptly move the pan/tilt and
camera module to the corresponding position. Through the OSD menu, the
user can quickly and conveniently configure, invoke, delete the preset
positions and edit the title of the preset positions. When the user invokes the
preset position through the OSD menu, the unit will move to the preset
position promptly, at the same time, the title of the preset positon editted by
the user will be shown. The unit supports 128 preset positions.
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