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US 11,768,127 B2Granted
Fiber optic virtual sensing system and method
AssigneeViavi Solutions France SAS
InventorAndre Champavere
Life of this patent
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Abstract
In some examples, fiber optic virtual sensing may include generating, by a virtual sensor generator that is operatively connected to a device under test (DUT), at least one virtual sensor along the DUT. A DUT interrogator may be operatively connected to the DUT to transmit a stimulus optical signal into the DUT. The DUT interrogator may analyze reflected light resulting from the transmitted stimulus optical signal. The DUT interrogator may determine, based on the analysis of the reflected light, an attribute of the DUT sensed by the at least one virtual sensor.
Claims18
A fiber optic virtual sensing system comprising:
- a virtual sensor generator, operatively connected to a device under test (DUT), to generate virtual sensors along the DUT by
- receiving, from a plurality of virtual sensor generation tools that include a tool to a generate a virtual optical time domain reflectometer (OTDR) that includes an optical source and a power meter to measure an event loss of a fiber optic component disposed at a location along the DUT, sensing properties for the virtual sensors;
- generating, based on the received sensing properties, at least one first virtual sensor to sense a property of the DUT along a specified length of the DUT that is less than an entire length of the DUT, and
- generating, based on the received sensing properties, at least one second virtual sensor to sense another property of the DUT along the entire length of the DUT, or
- generating, based on the received sensing properties, the at least one second virtual sensor to sense the another property of the DUT at a point along the DUT;
- and
- a DUT interrogator, operatively connected to the DUT, to:
- transmit a stimulus optical signal into the DUT;
- analyze reflected light resulting from the transmitted stimulus optical signal;
- and
- determine, based on the analysis of the reflected light, an attribute of the DUT sensed by the virtual sensors.
8 more elements
A fiber optic virtual sensing system comprising:
- a plurality of virtual sensor generation tools that are displayable to generate virtual sensors, including a virtual optical time domain reflectometer (OTDR) sensor that includes an optical source and a power meter to measure an event loss of a fiber optic component disposed at a location along a device under test (DUT);
- a virtual sensor generator to
- generate at least one virtual sensor, including the virtual OTDR sensor, along the DUT based on at least one of the plurality of virtual sensor generation tools, and
- move at least one existing virtual sensor from a first location to a second location along the DUT based on input received via the at least one of the plurality of virtual sensor generation tools;
- and
- a DUT interrogator, operatively connected to the DUT, to:
- transmit a stimulus optical signal into the DUT;
- analyze reflected light resulting from the transmitted stimulus optical signal;
- and
- determine, based on the analysis of the reflected light, an attribute of the DUT sensed by the generated at least one virtual sensor and the moved at least one existing virtual sensor.
7 more elements
A fiber optic virtual sensing method comprising:
- moving a plurality of existing virtual sensors from a first location to a second location along a device under test (DUT), wherein the plurality of existing virtual sensors includes a first virtual sensor and a second virtual sensor that represent a link budget loss meter to determine budget loss of the DUT;
- transmitting a stimulus optical signal into the DUT;
- analyzing reflected light resulting from the transmitted stimulus optical signal;
- and
- determining, based on the analysis of the reflected light, an attribute of the DUT sensed by the moved plurality of existing virtual sensors by combining measurements from the plurality of virtual sensors, wherein the combining of the measurements includes subtracting a loss determined by the first virtual sensor from a loss determined by the second virtual sensor.
2 more elements
Dependencies are inferred from the claim text.