Each Protection level involves the implementation of specific equipment to meet the requirements
-Level 1 :
-Level 2 :
Simple or double fencing
Additional protection equipment (Crash barrier, gabion walls, automated sensor lighting…)
Intrusion detection (fence front or rear )
Visible detection equipment
Subsoil Detection equipment
Video surveillance for detection confirmation
Video Surveillance system
Many intrusion detection solutions are available. A specific site oriented survey is required to select the best suited option, mainly depending on the environment.
-Thermal Camera with Image Processing
This technology offers an all weather capability suited to most environments.
Drawback : The sensor must be mounted on a solid stand to avoid false alarms
-Radar & Hyper-frequency Barrier
A Hyper Frequency barrier is composed of a radio transceiver and a receiver. The radio emission generates a lobe between the equipment. An intruder in the covered area will absorb radio waves and modify the lobe.
-Advantage : 3D detection capability.
-Drawback: the transceiver and receiver must be spaced of at least 2 meters. The system is rain sensitive.
Made of two opposite Laser transmitters and sensors. The system can detect a beam crossing up to 500 meters.
This type of system is particularly adapted to monitor a right line fence on a level terrain.
Advantage : The beams can be adjusted to locate the intruder on the monitored segment.
Drawback: The system is fog sensitive. The terrain needs to be level and bare of vegetation.
The laser barrier is created by a rotating emitter. The distance and angle of any obstacle on the ground is calculated within a range of 80 meters.
Advantages : Reduced false alarm rate (On barren terrain)
Drawbacks: The sensor is located at the center of the covered area. The system is rain and fog sensitive.
-Buried Pressure Tube or Fiber Optic
Stepping on the sensor area generates a pressure (or optical signal) unbalance which is detected.
Advantage : Low maintenance buried system
Drawback: The detection (sensor) band must be kept clear to avoid false alarms.
-Fence Mounted Intrusion Detection system
A variety of sensors can be mounted on a fence :
Sensing Fiber Optic
Sensing fence (partial or total)
Vibration sensors or cable
Sensing fence doubling the standard fence
Advantages : The sensing area is limited to the fence itself
Drawbacks: The existing fence must be capable of holding additional equipment with the required robustness and prevent nuisance alarms.