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System Overview
The
CellStack System is based upon encoded (digitized) video capable of
being transported across an ATM (Asynchronous Transfer Mode) network to
surveillance monitors and/or recorders. The video from surveillance
cameras is encoded at locations near each camera and subsequently
available to any destination display or recording device without
degradation of the signal. In addition to the video data, the system
incorporates built-in support for remote transmission of pan-tilt-zoom
camera control signals, and two-way audio. I/O sensing units can be
added to control the system as a result of intercom call buttons, door
switches, motion detectors, etc. The CellStack Surveillance System
utilizes industry standard ATM switches to route the video to the
various destinations without the need for CCTV matrix switches or
amplifiers.
System Compatibility
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Compatible with standard cameras, monitors, and recorders
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Digital
encoders accept standard NTSC signals permitting the use of industry
standard cameras without compromises or modifications
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Digital
decoders supply NTSC signals for use with standard TV monitors, and
standard time lapse or other recorders
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Existing
CCTV cameras and monitors can be connected into this system without
modification, enabling the use of the system video control and
distribution features
System Enhancements
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Video
images are viewable and/or recordable by an unlimited number of sites
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No CCTV
signal splitters and matrix switches are needed, eliminating inherent
signal degradation – video is received at all destinations with the same
quality as received at encoders near cameras
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The
system is insensitive to distance and to number of destinations – video
can be transmitted for many miles over standard fiber optic cable
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Frame
rates and picture resolution can be selected for each camera
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System
permits frame rates up to 30 frames per second to be changed at any time
to reduce difficulty tracking a suspect through a crowd
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Picture
resolution can be increased to provide extremely high quality video for
identification and prosecution purposes
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Camera
selection and routing can be fully automatic/automated
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System
supports RS-232, RS-485, RS-422 and “up-the-coax” control signaling
(Separate “control circuitry” is not required)
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Cameras
can be controlled from any location that has proper authorization
System Security / Alarm Interfacing / Fault Tolerance
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System accepts external signals
(e.g. motion detectors, door alarms, gate switches, vehicle sensors,
fire alarms, etc.)
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System can accept signals which
trigger execution of custom preprogrammed scripts to select cameras,
change frame rates, send alerts to monitors, initiate recording, etc.
Scripts, written by operational personnel, can be changed to adapt to
new security procedures
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Alarms from a door access control
system and from emergency call boxes/intercoms can be integrated into
the surveillance system to turn on security cameras
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The system can generate alarms
due to loss of video signal at encoder
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The system can log events and
alarms for future display and archiving
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Password protected access is
supported with multiple levels of control
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The system can enable access
restrictions of selected cameras to different organizations (e.g.
parking garage cameras for Police, fuel handling areas for the Fire
Department, restaurants and shops for one or more private security
agencies, baggage handling areas in airports for individual airline
tenants, etc.)
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The CellStack Surveillance System
can grant ad hoc temporary access to cameras
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Camera selection is done via
point & click graphical interfaces. Actual push button panels, familiar
to security personnel, can also be interfaced with the system
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Redundant power, control, and
transmission paths can be added for greater fault tolerance
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Hot swap (no requirement to power
down equipment) capability is designed in for replacement and/or
addition of encode/decode modules
System Expandability
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Expand
connectivity to an unlimited number of cameras
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Permit the addition of cameras in
completely new areas
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Permit increased density of
cameras in presently covered zones
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Permit connection to existing
CCTV surveillance equipment, thus bringing CellStack system flexibility
while protecting an investment in a legacy installation
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Deliver
video to an unlimited number of viewing and/or recording sites without
degradation of the quality.
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Enable the addition of monitoring
locations (backup site, executive offices, police precincts, etc.)
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Enable the addition of recording
locations
Increased system
fault tolerance (beyond initial installation)
The CellStack Surveillance
System can
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Enable the addition of redundancy
in power supplies, fiber routing, switching equipment
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Provide connectivity to alternate
locations for backup viewing centers
Surveillance monitoring focused on “active” areas
The CellStack Surveillance
System provides
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Increased system “intelligence”
with motion detectors, door switches, etc.
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Reduction in need to view and/or
record inactive zones (increase cameras while decreasing viewing
requirements)
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Automatic video routing to
security monitors and recorders
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Alert generation and logging on
detection of detector inputs
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Active guard acknowledgment
logging for audit requirements
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