PON Testing Device Port Identification via Light Detection
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Solution Overview
Problem
In passive optical networks, identifying the correct port experiencing a failure is error-prone, leading to unintended service interruptions and resource wastage during troubleshooting.
Innovation Solution
A PON testing device is configured to receive fiber optic cables, bend them to emit light, and use a light detection unit to determine if the emitted light is a test light, accurately identifying the port connected to a faulty cable by distinguishing it from regular optical signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual identification methods are used to identify the correct port, then device complexity is reduced, but measurement precision deteriorates leading to identification errors
Solution Approach 1:
The patent replaces manual mechanical identification methods with an automated optical detection system. The light detection unit automatically identifies the faulty port by detecting test light signals, eliminating the need for manual port identification and reducing identification errors while maintaining manageable device complexity through modular design.
Solution Approach 2:
The patent introduces test light as an intermediary signal to identify the faulty port. By injecting distinctive test light signals into specific ports and detecting them at the customer premise, the system creates a reliable identification mechanism that bridges the gap between the service provider's testing equipment and the customer's optical network unit.
2Reliability
If troubleshooting is performed without accurate port identification, then ease of operation is maintained, but reliability deteriorates causing service interruptions
Solution Approach 1:
The patent performs preliminary port identification using light detection before actual troubleshooting begins. By pre-identifying the exact faulty port through automated optical detection, the system ensures that subsequent troubleshooting actions are applied to the correct port, preventing service interruptions caused by misidentification while maintaining operational simplicity.
3Productivity
If manual troubleshooting procedures are used, then device complexity is minimized, but loss of time increases due to identification errors and extensive troubleshooting
Solution Approach 1:
The patent implements a self-service automated identification system where the light detection unit autonomously identifies the faulty port without requiring manual intervention. This automation eliminates time-consuming manual port identification and reduces troubleshooting duration significantly, while the modular design keeps device complexity manageable through standardized components.
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 ensures accurate identification of faulty ports, preventing resource consumption and service interruptions by correctly isolating the affected cable during troubleshooting.
Implementation Method 1
an optical fiber topology with passive branching points
Implementation Method 2
use a light detection unit to determine if the emitted light is a test light
Data Source
AI summary
A device may comprise a first portion and a second portion. The first portion may comprise a plurality of slots configured to receive a plurality of fiber optic cables. Each fiber optic cable may be received in a respective slot of the plurality of slots. The second portion may comprise a plurality of protruding members configured to bend the plurality of fiber optic cables, received in the first portion, to cause the plurality of fiber optic cables to emit light. The second portion may further comprise the light detection unit. The light detection unit may be configured to determine whether light emitted by a fiber optic cable is detected; and provide an indication regarding a port of the plurality of ports based on determining that the light, emitted by the fiber optic cable, is detected. The fiber optic cable may be connected to the port.