2
Chapter II System Features
2.1 High-Performance Image
The Surveyor MKII Analog Domes utilize
1/4" CCD
that
features significantly optimized image quality and dramatically
reduced smear level.
The
Digital Slow Shutter
(
D.S.S.
) allows the camera a
considerably long exposure time of 1/1.5 second, enabling it to
capture more color data. This also greatly enhances the camera's
sensitivity.
36X optical zoom lenses are provided to meet various needs.
Combined with an up to 12X digital zoom, the maximum zoom
ratio can reach 432X.
2.2 Outstanding Autoiris Camera
The domes provide continuous
auto focus
to help operators
navigate a surveillance site or trace a moving subject.
The pan and tilt speeds are automatically adjusted in proportion
to the zoom position. This capability ensures steady images
when the camera moves.
When the surrounding illumination changes, the camera
automatically adjusts its iris size ("
autoiris
") to keep the output
image at a fixed level of lighting.
The "
auto white balance
" function features built-in sensors to
measure the current color temperature, and uses an algorithm to
process the image so that the final output image may be close to
what the human eyes see.
Operators can use the "
backlight compensation
" feature to
automatically adjust the exposure level for an object in a strong
light background, so as to avoid a sharp contrast of brightness
and darkness that usually leads to a vague silhouette of the
object.
2.3 Open Protocol Design
The Surveyor MKII analog domes are compatible with Vicon
and Pelco-P/D protocols and can recognize the protocol being
used. This wide compatibility enables the domes to be used in
various CCTV systems.
2.4 Automated Operation
Note:
Some advanced features of the dome may not be accessible
by all Vicon control products or systems.
Up to 254
presets
(special presets, pre-defined pan/tilt/zoom
positions) can be programmed and stored in the non-volatile
memory of the domes. Each preset can be called up either
manually via controller or automatically upon alarm.
In addition to presets, the analog domes also provide 4
auto
tours
(stored navigation courses) to facilitate routine
surveillance. Users can easily activate an auto tour with simple
keystrokes.
"
Autopan
" function: 4 autopans are provided in total. Once
called up, enables the domes to scan through a surveillance area
automatically. A description title for the autopan can be
programmed and stored in the domes.
The domes, after receiving no command for a programmed
period of time, will automatically return to a preset position
("
home position
"). This allows the domes to keep an "eye" on a
key area even if an operator has inadvertently pointed it at an
insignificant position.
When a tilt operation exceeds the straight down position, e.g.,
when following a person that moves right beneath the domes,
the domes will automatically rotate 180 degrees. This "
auto
flip
" feature eliminates the possibility of inverted images, and
ensures that the surveillance view will always be seen in an
upright position.
2.5 Sector Partition and Privacy Mask
With the help of the "
sector partition,
" users can divide the
entire surveillance area into a maximum of 16 sections, and
define a 16-character description title for each section.
To prevent users from viewing a specific sensitive area in the
video, the analog domes provide a "
privacy mask
" feature that
can screen out the undesirable area.
2.6 Intuitive Menu Programming
The analog domes provide text overlay menus for setting up
operation parameters. The menus are mostly self-explanatory
and easy to operate. To configure these parameters, users only
need to move the joystick.
Various functions may be programmed via on-screen menus,
including lens and pan/tilt parameters, camera autoiris. controls,
on-screen title descriptions, area partition, privacy mask and
other automatic operations.
2.7 Powerful Alarm Handling
The domes provide 4 alarm inputs to follow external alarm
devices such as motion sensors, door contacts, etc. Upon alarm,
the domes will automatically return to a certain preset.
The preset to call upon alarm, as well as the normal state
(normally open or closed) of each alarm input, can be easily
configured via on-screen menus.
As an added security feature, 1 alarm output is also provided to
activate auxiliary devices such as a digital video recorders.
2.8 Wide Application & Easy Installation
Different dome models are designed to meet the needs of an
ever-changing market of security/surveillance and can be used
in applications from state security to residential communities,
and from luxury hotels to harsh outdoor environments.
With their compact structure and user-friendly design, the
domes can be installed easily and quickly at any location. This
timesaving advantage becomes especially useful when the
installation site is large and the surveillance sites are scattered.
