Fiber Optic Sensing Topologies for Environmental Monitoring
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Solution Overview
Problem
Existing optical fiber telecommunications infrastructures are limited to data transmission and communications, failing to leverage their potential for environmental sensing such as acoustic, temperature, and vibrational event detection.
Innovation Solution
Distributed fiber optic sensing systems (DFOS) are integrated into existing telecommunications networks, utilizing optical switches and existing fiber infrastructure to provide real-time sensory information on environmental events by converting the network into a sensing medium for temperature, vibration, and acoustic detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If optical fiber infrastructure is used solely for data transmission, then communication functionality is maintained, but sensing capability is lost
Solution Approach 1:
The patent applies multi-functionality by enabling optical fiber infrastructure to serve dual purposes: traditional data transmission and environmental sensing. The system uses the same fiber optic cables to both communicate data and detect environmental parameters such as temperature, acoustic events, and vibrations through distributed sensing techniques, thereby eliminating the need for separate sensing infrastructure.
2Adaptability or versatility
If existing fiber infrastructure is converted into a sensing medium, then environmental monitoring capability is improved, but system complexity increases
Solution Approach 1:
The patent applies self-service by utilizing the optical fiber's inherent physical properties to perform sensing functions without requiring additional external sensors or complex processing equipment. The fiber itself acts as the sensing element, detecting environmental changes through its natural response to temperature, acoustic, and vibrational stimuli, thereby simplifying the overall system architecture.
3Adaptability or versatility
If optical switches are integrated into the sensing network, then sensing coverage and flexibility are improved, but network complexity increases
Solution Approach 1:
The patent applies multi-functionality by using optical switches that serve both traditional network routing functions and sensing network configuration functions. The same optical switching infrastructure that manages data transmission traffic is also employed to dynamically reconfigure sensing paths, select active sensing segments, and route sensing signals, thereby avoiding the need for separate switching equipment for sensing applications.
Data Source
AI summary
Aspects of the present disclosure describe distributed fiber optic sensing (DFOS) systems, methods, and structures that advantageously utilize existing telecommunications facilities that serve as not only to convey telecommunications traffic—but as a sensor medium providing useful sensory information. In sharp contrast to the prior art—a DFOS system when so deployed may advantageously exploit network topologies and optical switches to provide novel sensing features including the detection of environmental events including acoustic, temperature, and vibrational events that may be indicative of societal activity including traffic and/or emergency events.