Video intrusion detection

PRINCIPLES OF OPERATION

The SmartFence is an innovative integration of fiber-optic net and cable that operates on the principle of light disturbance. The components include the FiberNet, which detects any attempted intrusion by cutting, and the FiberSensor which detects intrusion attempts by sensing motion and vibration disturbance.

The cable is installed in a split plastic conduit to provide uniform detection and to enhance sensitivity to any fence motion disturbance. Coded infrared (IR) light is sent through the FiberSensor cables from IR transmitters to IR receivers. Any attempted intrusion will trigger an alarm and monitors in the System Command Center will display and record the intruded zone and all related data.

SYSTEM SPECIFICATIONS

Optical Components

Cable - Multimode fiber-optic, heavy-duty military spec tactical cable; KEVLAR reinforced polyethylene jacket withstands UV radiation.
Light Source - Class 1 Laser Diode
Detector - PIN Diode
Optical Connectors - ST-SC

Detection Zones up to 750 ft.

Version A. Connected to the computerized alarm, monitoring and control system via fiber-optic or wireless transmission.
Version B. Stand-alone, provides dry contact outputs.
Zone Processing Units- Electro-optic zone processing units installed in climateproof enclosures monitoring up to 2 zones; redundantly routed fiber-optic communication cables connect ZPUs to System Command Center controlled by microcomputer with Graphical User Interface that allows wide range of calibration and sensitivity settings:

Adjustable alarm threshold for various fencing structures and environments.
Advanced signal processing to significantly decrease false and nuisance alarms.

Enclosure
Fiberglass polyester NEMA-EEMAC Type 4 or 4X
Current - 28 MA
Input Voltage - 9-50 VDC, 1/2 A or 24-36 VAC, 1/2A
Output

8 Control open collectors, 300 MA
8 Relay dry contacts

Operating Temperatures - -30C to +70C (-22F to +158F)
Monitors
2 zones of up to 250 m. (750 ft.) each
4 dry contact sensors

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