Patent ID: 7123785
Filing Date: 2006-10-17
Classification: G02B,G08B

Abstract:
1. A security system, comprising: an optical fiber net woven from at least one optical fiber wire; a light generator connected at a first end of the optical fiber net to introduce an incident light signal into the optical fiber wire; a light receiver connected at a second end of the optical fiber net to receive an exigent light signal from the optical fiber wire; and at least one optical sensor wire connected to the optical fiber net such that the at least one optical sensor wire is displaced when a force is applied to the optical fiber net, the at least one optical sensor wire being connected between the light generator and the light receiver, the at least one optical sensor wire receiving a patterned incident light signal that is altered upon application of the force applied to the optical fiber net, thereby producing a patterned exigent light signal, wherein the light receiver comprises two light sensors, one receiving the exigent light signal from the optical fiber wire, the other receiving the patterned exigent light signal from the optical sensor wire, and wherein the light receiver initiates an alarm either (1) if the exigent light signal from the optical fiber wire terminates, or (2) after comparing the patterned exigent light signal with the patterned incident light signal in the at least one optical sensor wire and establishing a deviation, if the deviation exceeds a predetermined threshold.