Entrance security system
First Claim
1. A security system for detecting an unauthorized activity and attempt to enter through an entrance of a secured area comprising:
- an entrance barrier for controlling entry through the entrance including a plurality of intersecting structural tubular elements;
at least a first intrusion sensor, including a sensor line, for sensing a first predetermined fault condition corresponding to an unauthorized attempt to move the barrier;
a second intrusion sensor, including a sensor line, for sensing a second predetermined fault condition corresponding to one of a bend or a severance of a tubular element;
at least one monitor unit for transmitting a sensor signal along the sensor line, and at least one receiver unit for receiving the sensor signal upon return;
a monitor processor for receiving said sensor signal from said receiver unit and initially establishing a baseline level corresponding to the state of the sensor line in a secure condition, detecting when said sensor signal reaches a threshold level above the baseline level, and generating a fault signal in response to reaching or exceeding the threshold level corresponding to one of a movement, a bend, or a break in the sensor line; and
a notification device communicating notice of the fault signal to security personnel.
3 Assignments
0 Petitions
Accused Products
Abstract
An entrance denial security system comprises an entrance barrier closing an entrance into a secured area having a plurality of structural tubular elements with hollow cores forming a rigid integral barrier. At least one optical fiber sensor line is laced through the hollow cores of the structural elements for detecting a fault condition signifying an unauthorized intrusion attempt. A processor in communication with the fiber sensor line generates a fault signal in response to a fault signal level. A communication device operatively associated with the processor communicates the fault signal and an alarm. The system also includes a plurality of tubular elements lying a common plane and the sensor line is routed through the tubular elements. In one instance, the tubular elements are PVC pipe.
20 Citations
37 Claims
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1. A security system for detecting an unauthorized activity and attempt to enter through an entrance of a secured area comprising:
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an entrance barrier for controlling entry through the entrance including a plurality of intersecting structural tubular elements; at least a first intrusion sensor, including a sensor line, for sensing a first predetermined fault condition corresponding to an unauthorized attempt to move the barrier; a second intrusion sensor, including a sensor line, for sensing a second predetermined fault condition corresponding to one of a bend or a severance of a tubular element; at least one monitor unit for transmitting a sensor signal along the sensor line, and at least one receiver unit for receiving the sensor signal upon return; a monitor processor for receiving said sensor signal from said receiver unit and initially establishing a baseline level corresponding to the state of the sensor line in a secure condition, detecting when said sensor signal reaches a threshold level above the baseline level, and generating a fault signal in response to reaching or exceeding the threshold level corresponding to one of a movement, a bend, or a break in the sensor line; and a notification device communicating notice of the fault signal to security personnel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A security system for detecting an unauthorized activity and/or attempt to enter through an entrance of a secured area comprising:
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a sensor line; an entrance barrier including a grid of first tubular elements and second tubular elements intersecting one another having hollow interiors and lying in a common plane; a plurality of cross-intersections formed by said first tubular elements and second tubular elements intersecting one another and forming a cross-through passage for crossing of said sensor line through said tubular elements; said sensor line extending through said first tubular elements and crossing over the sensor line extending through said second tubular elements at each said cross-intersection; and a monitoring unit comprising a signal transmitter for transmitting a sensor signal along said sensor line, a signal receiver for receiving said sensor signal, and a processor for processing the current sensor signal to detect a deviation in said sensor signal representing a predetermined fault condition; whereby any predetermined deviation or severance of any of the tubular elements and sensor line is detected and a visual and/or audible notification may be produced for warning. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A security system for detecting an unauthorized activity and/or attempt to enter through an entrance of a secured area comprising:
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a sensor line along which a sensor signal is transmitted; an entrance barrier including a plurality of parallel tubular elements lying in a common plane, and said tubular elements being spaced wherein an intruder cannot enter between the tubular elements; said tubular elements having hollow interiors and opposed open ends; said sensor line being routed through said tubular elements; a routing channel disposed adjacent open ends of said tubular elements, said sensor line passing through said routing channel to route said sensor line in and out of said tubular elements; and a monitoring system comprising a signal for transmitting a sensor signal along said sensor line, a signal receiver for receiving said sensor signal, and a processor for processing said sensor signal to detect a predetermined deviation in said sensor signal representing one of a plurality of predetermined fault conditions; whereby any predetermined deviation or severance of any of the tubular elements and sensor line is detected and a visual and/or audible notification may be produced for warning. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30)
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31. A security system for detecting an unauthorized activity and/or attempt to enter through an entrance of a secured area comprising:
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an entrance barrier including a plastic grid of first tubular elements and second tubular elements made of a plastic material having hollow interiors and lying in a common plane; a sensor line for transmitting a baseline sensor signal and a current sensor signal routed through said first and second signal lines; a plurality of plastic cross-intersections formed by said first tubular elements and second tubular elements intersecting one another and forming a cross-through passage for crossing of said sensor line through said tubular elements; said sensor line extending through said first tubular elements to cross over the sensor line extending through said second tubular elements at each said cross-passage; and a monitoring system comprising a signal transmitter for transmitting said sensor signal along said sensor line, a signal receiver for receiving said sensor signal, and a processor for processing said current sensor signal to detect a deviation in said sensor signal representing a predetermined fault condition; whereby any predetermined deviation or severance of any of the plastic tubular elements and sensor line is detected and a visual and/or audible notification may be produced for warning. - View Dependent Claims (32, 33, 34, 35, 36, 37)
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Specification