OPTICAL SECURITY SENSORS, SYSTEMS, AND METHODS

摘要

A security system includes an optical fiber (20), a plurality of sensors (40), and a light source (82), detector (84), and a controller (86). The optical fiber and sensors are attached and positioned along a fence (12). The optical fiber (20) passes through sensors. The sensors include a hinged striker (60) having a weight (62) that is movable in response to vibration of the fence to compress the optical fiber to bend the optical fiber and attenuate transmission of an optical signal through the optical fiber. In another embodiment, an optical fiber cable having a plurality of optical fibers may be employed to define zones and allow determination of intrusion of a particular portion of the fence. In a further embodiment, a ground sensor is disclosed.