AutoDome Modular Camera System
Glossary of CCTV Terms | en
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Bosch Security Systems, Inc.
VG4-200, VG4-300, VG4-500i Series User’s Manual
F01U073308 | 3.0 | 2007.09
12
Glossary of CCTV Terms
A
Address
Each AutoDome has a numerical address in the control system in which it is located. This
allows the appropriate dome to be operated. The address may be set locally using the Bilinx
Configuration Tool for Imaging Devices (CTFID) or remotely using the Fast Address function
(see Fast Address).
AAC
See Advanced Alarm Control.
Advanced Alarm Control
AutoDome’s flexible and sophisticated alarm management subsystem that allows “rules” to be
created that define which input(s) activate one or more outputs (see Alarm Rule). In its most
basic form, a rule could define which input(s) should activate which output(s). In a more
complex form, a rule can be programmed to take a specific keyboard command (pre-existing
or not) and perform a dome function, or any combination of the above.
Advanced Diagnostics
Bosch’s combination of built-in On Screen Displays (OSD) and status LEDs that are used to
check critical camera parameters such as internal temperature, input voltage levels, and
network connectivity. This allows a technician to quickly determine the source of problems
and ensure that the dome is functioning within correct operating limits.
AGC
See Automatic Gain Control.
Aperture
The size of the opening in the iris, which controls the amount of light that reaches the CCD
Sensor. The larger the F-Stop numbers, the less light reaches the sensor.
AutoBlack
A technique of boosting the video signal level to produce a full amplitude video signal even
when the scene contrast is less than full range (glare, fog, mist, etc.). The darkest part of the
signal is set to black and the lightest part to white, thus increasing the contrast.
AutoDome
Fully integrated, high speed, pan/tilt/zoom camera built into a protective dome housing
allowing full and continuous 360° coverage of the scene.
AutoFocus
The lens continuously adjusts to the correct focus automatically for the sharpest picture.
AutoIris
The lens iris opening is automatically adjusted to allow the correct illumination of the camera
sensor.
Automatic Gain Control
The electronics that regulate the gain or amplification of the video signal.
AutoPan
The camera pans continuously between right and left limit settings.
AutoPivot
As the camera tilts through the vertical position, the camera is rotated to maintain the correct
orientation of the image.
AutoPlayback
This function records the sequence of movements of the AutoDome PTZ for later playback
allowing a set pattern to be repeated automatically. This function is often called Guard Tour.
AutoScaling
As the camera zooms in to increase the size of objects on the monitor screen, the pan and tilt
speeds are reduced so that the relative speed on the screen remains constant for similar
joystick control positions.
AutoTrack
A patented technology that integrates motion detection into the camera allowing tracking of
an object and zooming in to optimize size and perspective.
