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;
a first fiber optic intrusion sensor including at least one fiber optic sensor line for sensing a first predetermined fault condition signifying an unauthorized attempt to open the barrier;
a second fiber optic intrusion sensor including at least one fiber optic sensor line for sensing a second predetermined fault condition signifying one of a bend or a severance of a tubular element;
at least one fiber optic scanning unit for scanning the optical sensor line and receiving reflected scan signals from the optical sensor line;
a system computer for receiving and processing the scan signals from said scanning unit in real-time representing the state of the optical sensor lines and generating a real-time fault signal in response to detecting one of said first and second predetermined fault conditions; and
a communication device communicating notice of the fault signal to security personnel.
4 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 the occurrence of a fault condition and identifying the entrance where the fault condition occurred. A communication device operatively associated with the processor communicates the fault signal and an alarm so that a proper security response can be made to the fault condition. The system further comprises a plurality of intrusion sensors disposed at certain locations. Preferably primary and secondary optical fiber sensor lines are routed through the structural elements and intrusion sensors, and primary and secondary scanning units pulse signals along the sensor lines and receive reflected signals back from the sensor lines. In the event of a cut through in the sensor lines, the primary sensor line monitors the barrier and sensors downstream of the break, and the secondary sensor line is activated to monitor the barriers and sensors downstream of the break.
-
Citations
39 Claims
-
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; a first fiber optic intrusion sensor including at least one fiber optic sensor line for sensing a first predetermined fault condition signifying an unauthorized attempt to open the barrier; a second fiber optic intrusion sensor including at least one fiber optic sensor line for sensing a second predetermined fault condition signifying one of a bend or a severance of a tubular element; at least one fiber optic scanning unit for scanning the optical sensor line and receiving reflected scan signals from the optical sensor line; a system computer for receiving and processing the scan signals from said scanning unit in real-time representing the state of the optical sensor lines and generating a real-time fault signal in response to detecting one of said first and second predetermined fault conditions; and a communication device communicating notice of the fault signal to security personnel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
-
-
20. An entrance denial security system for detecting a fault condition at one or more entrances into a secured area representing unauthorized activity and an attempt to gain entry through the entrance, the system comprising:
-
an entrance barrier closing an entrance into a secured area; said barrier including a plurality of structural tubular elements having hollow cores forming a rigid integral barrier preventing entrance into the secured area; a primary optical fiber sensor line routed through said tubular elements; a secondary optical fiber sensor line routed through said tubular elements; a primary scanning unit in communication with said primary sensor line for generating and transmitting light Signals along said primary sensor line, and receiving reflected signals from an end of said primary sensor line; a secondary scanning unit in communication with said secondary sensor line for generating and transmitting light signals along said secondary sensor line, and receiving reflected signals from said secondary sensor line; computer executable instructions embodied in computer readable code and a fault level data set embodied in computer readable code containing a plurality of predetermined fault conditions signifying intrusion events at a level desired to be detected for security; a system computer for receiving said reflected scan signals from said scanning unit in real-time representing the state of the optical sensor lines and accessing said executable instructions and said data set for generating a real-time fault signal in response to detecting one of said predetermined fault conditions; and an alarm device for notifying security personnel of the fault signal. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
-
-
33. A method of delaying and preventing an unauthorized entry through an entrance into a secured area closed off by a barrier having a plurality of first and second intersecting tubular structural elements comprising:
-
providing at least one optical fiber sensor line laced through said plurality of structural elements; encasing structural reinforcing members extending longitudinally inside said hollow tubular elements alongside said at least one sensor line laced through said tubular elements which must be completely cut in order to sever a tubular element; transmitting and receiving real-time scan signals in the fiber sensor line representing the condition of the fiber sensor line; processing the scan signals to establish a baseline signal from the sensor line representing an undisturbed state of the optical fiber sensor line; comparing the scan signals to the baseline signal, and generating a fault signal in response to receiving a scan Signal having a predetermined deviation from the baseline signal; processing the deviation signal to establish a type and nature of a fault condition occurring in the barrier at the entrance; and alerting personnel of the fault condition; whereby a complete cutting of said reinforcing member delays severance of said tubular elements after generation of a fault signal whereby guard personnel is provided sufficient time to arrive at the location of the intrusion before intrusion. - View Dependent Claims (34, 35, 36, 37, 38, 39)
-
Specification