FOSINA
FOSINA is a French start-up specializing in the use of optical fibers as distributed sensors.
Our team is made up of engineers who have been experts in this field for over 35 years.
Our expertise extends from design to commercialization, including the manufacture of interrogators resistant to hostile environments and capable of monitoring temperature, deformations and vibrations over tens of kilometers along the fiber, with meter-accuracy.
By combining our patented DxS interrogator and artificial intelligence-based software with a conventional underwater optical fiber, we are able to detect, classify, locate and visualize marine activity in real time.
FOSINA’s activities revolve around infrastructure and perimeter monitoring to detect potential threats or natural events in real time.
The sensitivity of our system is such that we have managed to detect the movement of ships, earthquakes as well as ebb and flood tides over tens of kilometers, with meter accuracy, simply by connecting our interrogator to an existing submarine cable.
A non-exhaustive list of applications for naval activity is:
– detection of marine activity, whether under or on the surface of the sea;
– detection of ship movement;
– monitoring of fatigue, temperature, leakage and abnormal vibrations of ship and submarine hulls;
– monitoring of cable fatigue and integrity;
– perimeter monitoring, above ground (cars, pedestrians) and underground (tunnels, cavities) of sensitive areas;
– seismic monitoring…
The DxS interrogator is based on the principle of Optical Time Domain Reflectometry (OTDR) and is equivalent to having thousands of sensors over tens of kilometers monitoring events in real time, 24 hours a day.
This enables:
– monitoring the seabed and water surface;
– measuring dynamic deformation for oceanographic applications;
– monitoring fatigue, temperature, leaks and abnormal vibrations in ship or submarine hulls.
The DxS is the only one on the market to provide the above measurements in a single package. It has been designed to be scalable and modular (extending the measurement range), and has the unique feature of collecting vibration/acoustic data as well as temperature and static stress on a single fiber.
This is particularly interesting if measurements are intermittent, in which case reference to previous data is not lost.
The DxS interrogator can also be used as a highly accurate device for measuring temperature change over the entire duration of an acquisition (i.e. continuously).’
The DxS can be combined with our “Time Machine Learning” software based on machine-learning algorithms for automated, real-time analysis of detected data and event classification.
We have thus demonstrated that we can distinguish, a person walking along a sensitive area, from a vehicle driving along that area, and from a person trying to tunnel through that area.
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