Distributed Fiber Sensing for On-Demand Cable Risk Alerts
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Solution Overview
Problem
Current distributed fiber optic sensing (DFOS) systems fail to provide notice of fiber cable risks to devices associated with other networks, consume excessive computing and networking resources, and cannot support new services like cable location determination and intrusion detection.
Innovation Solution
A monitoring system connected to a network receives requests from user devices to monitor fiber cables, with fiber sensing devices detecting risks and sending alerts to other network devices, allowing these devices to request monitoring and conserve resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If DFOS systems monitor fiber cables independently without network integration, then fiber cable monitoring capability is provided, but resource utilization efficiency deteriorates and cross-network notification capability is lost
Solution Approach 1:
The DFOS system is integrated with the network management system to perform multiple functions: monitoring fiber cables, notifying cross-network devices of risks, and enabling on-demand monitoring requests. This multi-functionality resolves the contradiction by making the system adaptable to cross-network operations while maintaining efficient resource utilization through centralized management.
Solution Approach 2:
The system implements feedback mechanisms where monitoring results are communicated back to the network management system, which then notifies relevant devices. This feedback loop enables cross-network notification capability while optimizing resource allocation based on actual monitoring needs and results.
2Adaptability or versatility
If DFOS systems operate in isolation without external device interaction, then system simplicity is maintained, but new services such as cable location determination and intrusion detection cannot be supported
Solution Approach 1:
The system architecture is segmented into modular components: the DFOS monitoring module, the network management system, and external device interfaces. This segmentation allows the system to support new services like cable location determination and intrusion detection by adding functional modules without significantly increasing overall system complexity.
Solution Approach 2:
The network management system acts as an intermediary between the DFOS system and external devices. This mediator enables new services and external device interaction while maintaining relative system simplicity by handling complexity at the interface layer rather than within the core DFOS monitoring functionality.
3Reliability
If continuous monitoring of all fiber cables is performed, then comprehensive risk detection is achieved, but computing and networking resources are wasted on unnecessary monitoring
Solution Approach 1:
The monitoring system dynamically adjusts its operation based on incoming requests and detected conditions. Instead of continuous monitoring of all cables, the system activates monitoring based on device requests and risk conditions, achieving comprehensive risk detection where needed while optimizing resource utilization by avoiding unnecessary continuous monitoring.
Solution Approach 2:
The system changes operational parameters such as monitoring intensity and scope based on requests and detected conditions. When risks are detected or requests are received, the system increases monitoring completeness; otherwise, it reduces monitoring activity to optimize resource utilization, thus resolving the contradiction between reliability and productivity.
Data Source
AI summary
A monitoring system connected to a network may receive a request from a user device over the network to monitor a fiber cable. A fiber sensing device may connect to the monitoring system, may communicate messages with the monitoring system, and may connect to the fiber cable. The fiber sensing device may receive an instruction from the monitoring system to begin a monitoring function for the fiber cable, and may provide a first optical signal to the fiber cable. The fiber sensing device may receive, from the fiber cable, a second optical signal, based on the first optical signal, and may detect a risk to the fiber cable based on the second optical signal. The fiber sensing device may send an alert about the risk to the fiber cable to the monitoring system, and the monitoring system may send the alert over the network to the user device.