Description of the system

• PERISENS device is a Distributed Acoustic Sensing (DAS) system that provides acoustic sensing typically every 1 m over several tens of kilometers with optical fiber cable deployed on or near the highly sensitive area perimeter. The PERISENS device can be connected to optical fiber cables already installed.
• PERISENS devices convert the installed single mode fiber optic cable into a sequence of “Virtual Geophones” that are spaced 1 meter apart, over tens of kilometers. By this operation, the installed fiber optic cable is acting as a sensor all along the asset. The only requirement is to connect the device to one end of one free core of the fiber optic cable.
• This system is specifically designed to meet harsh environment requirements with a single-ended connection to the optical fiber sensing cable.

PERISENS PIDS Performances:

• Realtime alerting of any intrusion (digging, fence climbing, fence cutting)
• Up to 50 km/Up to 1 m location accuracy
• Interoperability with global automation systems (CCTV/PTZ camera...)
• Environmental condition filtering

Fiber optic cable deployment:

• On fence
• On wall
• Buried
• Using existing telecommunication network

Control/Visualisation software included:

• Evolutive filtering
• Alert management

SCADA > Global Automation system
(relay module, MODBUS, OPC)

PERISENS Supervision Software offers:

• Desktop study, FAT, SAT
• Commissioning, Installation, Training
• Continuity of operation (providing all necessary
• [switching automation] spare parts)

Mapping recording to field GPS coordinates

• Alert acknowledgment
• Interoperability with third party system

Applications and references

Perimeter security of highly sensitive area such as:

• Oil & Gas facilities
• Border
• Storage/Power plants
• Military restricted area
• Airports