Distributed intelligent traffic informatics using fiber sensing
AssigneeNEC Laboratories America, Inc.
InventorsMilad SALEMI, Ming-Fang HUANG
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Abstract
Aspects of the present disclosure describe systems, methods and structures providing wide-area traffic monitoring based on distributed fiber-optic sensing (DFOS) that employs deep neural network(s) for denoising noisy waterfall traces measured by the DFOS. Such systems, methods, and structures according to aspects of the present disclosure may advantageously monitor multiple highways/roadways using a single interrogator and optical fiber switch(es) which provides traffic information along every sensing point of existing, deployed, in-service optical telecommunications facilities.
Claims10
A distributed traffic informatics system comprising:
- a length of optical fiber positioned proximal to a roadway supporting vehicular traffic;
- an optical interrogator unit that generates optical pulses, introduces them into the optical fiber, and receives Rayleigh backscattered signals from the fiber;
- and
- a data processor unit that is configured to:
- determine from the backscattered signals, mechanical vibrations experienced by the optical fiber along its length resulting from a vehicle operating on the highway;
- and
- determine characteristics of the vehicle that produced the determined mechanical vibrations.
Dependencies are inferred from the claim text.