Fiber Optic Cable Bending Device for PON Mapping
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Solution Overview
Problem
Passive optical networks face increasing complexity due to cascading splitters and lack of effective mapping technology, leading to difficulties in troubleshooting and managing connections, often resulting in service disruptions and inefficient use of resources.
Innovation Solution
A fiber optic cable bending device is used to induce signal attenuation, allowing for the identification of active and inactive connections by bending the cable and using a back-end database to map optical network terminals, thereby creating a knowledge base of component relationships and statuses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional physical disconnection methods are used to map network connections, then connection mapping can be achieved, but service disruptions occur and customers are taken out of service
Solution Approach 1:
The patent introduces an optical attenuator as an intermediary device inserted into the fiber optic cable to induce controlled signal attenuation. This allows mapping to be performed without physically disconnecting ports or taking customers out of service, thereby maintaining service continuity while achieving accurate connection mapping through detection of signal power changes at optical network terminals.
2Productivity
If technicians work under expedience structure without mapping tools, then connection tasks can be completed quickly, but troubleshooting complexity increases exponentially
Solution Approach 1:
The patent implements a feedback mechanism where signal power changes at optical network terminals are detected and used to generate connection mapping information. This feedback loop allows technicians to quickly determine active and inactive ports without complex troubleshooting, maintaining high productivity while reducing troubleshooting complexity through automated mapping data.
3Measurement precision
If fiber optic cables are bent to induce signal attenuation for mapping, then connection identification is enabled, but cable structural integrity may be compromised
Solution Approach 1:
The patent uses an optical attenuator as an intermediary device that provides controlled signal attenuation without requiring physical bending of the fiber optic cable. This eliminates the risk of cable damage while still enabling accurate detection of signal power changes for connection mapping purposes.
Solution Approach 2:
The patent changes the optical signal parameter by introducing controlled attenuation through the optical attenuator device. This allows signal power to be modified in a controlled manner to enable detection of connection status without physically deforming the cable structure, thereby maintaining cable integrity while achieving the desired measurement effect.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This method enables accurate mapping of connections without service disruptions, improves troubleshooting efficiency, and optimizes resource utilization by identifying inactive ports for reuse, reducing the complexity of network management.
Implementation Method 1
bending a fiber optic cable and then determining which optical network terminals experience a signal power loss (or receive an attenuated signal) based on the bending
Data Source
AI summary
Examples of a bending device to bend fiber optic cables to cause consistent signal attenuations. An example bending device may be a simple non-electronic structure with two pieces slidably attached to each other using a tensioning mechanism (e.g., a spring). The two pieces may define a curved groove with a predetermined radius of curvature. A technician may slide one piece against the tensioning pressure to expose the groove and insert the fiber optic cable. The curved groove bends the fiber optic cable, and the tensioning pressure maintains the bend. In one or more embodiments, one of the two pieces have a second groove defined thereon for bending a fiber optic cable of a different size.