Perimeter security is one element of the overall security system used for protection of hazardous production, industrial and civil facilities. Generally, perimeter monitoring systems are installed at fuel and energy complex enterprises, nuclear power plants, military facilities, airports and other facilities with large areas. Please note, that any perimeter security system is only a part of the overall security system and in most cases additional visualization is needed. Therefore, perimeter security systems are often used together with video surveillance systems.

How can fiber optic technology help?

Fiber optic cable, not susceptible to electromagnetic interference, hidden and unseen by metal detectors in case of dielectric armor, is the basis of the control system. The principle of DAS (Distributed Acoustic Sensing) is based on the change in refractive index and elongation of the optical fiber section under the influence of vibroacoustic influences on it. In this case the cable can be attached to the fence or buried in the ground, providing early detection of an intruder at the border of the surveillance area. Often the optical cable is laid in several lines to determine the direction of intruders travel and reduce the number of false alarms.

Any mechanical impact on a fiber optic sensor cable changes the characteristics of the optical fiber inside it. These changes are analyzed and recorded, informing about the threatening event with the accurate location and class of impact. Moreover, it is a durable system with the proven design life of the main element, the optical cable, of 20 years.

Fiber optic system can detect:

— human steps 5-10 m from the cable,

— hand digging 15-30 m from the cable,

— moving car 50-60 m from the cable,

— heavy equipment digging 50-300 m from the cable.

What fiber optic cables out of the WB product line up can help you to monitor the perimeter?

Non-metallic MultiSense

Multipurpose cable for monitoring of extended objects. The main feature of this cable is the ability to collect data on all types of distributed monitoring (DTS, DAS, DSS). It has an ultra-sensitivity to deformation and acoustic influences.

UniSense

Lightweight universal cable for monitoring of extended objects on the basis of DTS and DAS

UniSense is an excellent solution for laying in different types of soils. The cable is robust against mechanical damage due to the armor of steel wires.

FIMT

The FIMT cables can be used as part of urban infrastructure and laying along the industrial facilities, where the cross-section dimension of the sensor cable is critical while maintaining its resistance to tensile and crushing loads as well as high temperatures.