THE DIFFERENTS TECHNOLOGIES FOR THE PERIMETER PROTECTION
Detection via buried microwave cable
A coaxial cable buried 25 cm in the ground generates a microwave field along its length. A second cable paired with the first senses variations in the microwave electromagnetic field and transmits them to the monitoring station for analysis.
Technology proposed by SORHEA
Detection via buried water pipes
A pipe filled with a water / glycol mixture buried in the ground is connected to a pressure sensor which picks up vibrations and transmit to a central analyser.
Fence with vibration sensor
A coaxial cable powered by high frequency voltage is mounted on the enclosure. It senses vibrations and impacts on the mesh and transmits the information to the monitoring station for analysis.
Technology proposed by SORHEA
Fabrics with vibration sensor
A coaxial cable powered by high frequency voltage is mounted on the enclosure. It senses vibrations and impacts on the mesh and transmits the information to the monitoring station for analysis.
Technology proposed by SORHEA
Fence with active links or mesh sensor
The enclosure consists of a chain-link mesh carrying an electric current or optical fiber. Disturbance of the enclosure is detected.
Fence with taut wire sensor
The enclosure consists of strands of stainless steel wire strung in parallel. Separation or interruption of the wires is detected and transmits an alarm.
Electric fence
This enclosure consists of stainless steel wire carrying a high voltage current that is non-lethal but highly discouraging. A break or snag in a wire is detected.
Exterior Doppler
Microwave type detection. A microwave signals is transmitted by the antenna. Any movement in the vicinity return all or part of this signal. The returned signal is analyzed in order to trigger an alarm.
Passive infrared
Passive IR type of detection. The sensor detects any change in temperature in the monitored area.
Laser detector
Laser scanning detection mode with analysis of the return signal (flying time analysis).
Dual Technologie detector
Linking a microwave Doppler and a passive infrared sensor. The simultaneous detection by the 2 technologies trigger the alarm.
Technology proposed by SORHEA
Active Infrared barriers
Infrared barriers consist of transmitters that generate infrared light beams and receivers that detect and analyze interruptions in the beams.
Technology proposed by SORHEA
Microwave barriers
Microwave barriers consist of a transmitter that generates a directional electromagnetic field and of a receiver that detects and analyzes modification of the electromagnetic field in the event of a breach of the zone under surveillance.
Technology proposed by SORHEA
Video surveillance and video sensors
An assembly of fixed cameras constantly records images. The passage of an intruder into the field is immediately detected by analysis of the image.
