Optical Ethernet Remote Recovery via Signal Pattern Counting
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Solution Overview
Problem
Existing optical Ethernet systems face issues with repetitive system resets due to instability, leading to operational difficulties and increased costs, as they often require manual intervention for recovery from external factors like power outages or hacker attacks.
Innovation Solution
An optical Ethernet apparatus with a signal detector, pattern detector, and system recovery controller that detects a predetermined signal pattern repeated a designated number of times within a specific period, triggering a system recovery command to reset or power cycle the system, allowing for remote system recovery with minimal changes to the existing system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If a predetermined signal pattern is used to trigger system reset, then remote recovery capability is achieved, but unnecessary resets occur due to optical line instability
Solution Approach 1:
The system performs preliminary detection of signal pattern repetition before triggering a reset. By counting the number of times the predetermined pattern appears and verifying it exceeds a threshold value, the system prepares and validates the reset condition in advance, preventing premature or unnecessary resets while maintaining remote recovery capability.
Solution Approach 2:
The system implements feedback by continuously monitoring the optical signal and counting pattern repetitions. The counter provides feedback about the frequency of pattern occurrence, allowing the system to distinguish between legitimate reset triggers (high repetition count) and false triggers (low repetition count), thereby improving reliability while maintaining automation.
2Reliability
If manual administrator visit is required for system reset, then system stability is maintained, but recovery time increases and operation costs increase
Solution Approach 1:
The system performs self-service by automatically detecting the predetermined signal pattern, counting repetitions, and triggering reset operations without requiring administrator intervention. This eliminates the need for manual site visits while maintaining stable reset behavior through pattern threshold validation, simultaneously reducing recovery time and preserving system stability.
3Device complexity
If simple signal pattern detection is used, then device complexity is reduced, but false resets occur due to optical instability
Solution Approach 1:
The system performs preliminary counting of pattern repetitions before triggering a reset. By implementing a counter that tracks the number of times the predetermined pattern appears and compares it against a threshold, the system adds minimal complexity while significantly improving reset accuracy and preventing false resets caused by optical instability.
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 solution reduces unnecessary system resets, enhances operational stability, and enables remote recovery, thereby minimizing downtime and operational costs by ensuring accurate detection of recovery commands and controlled power management.
Implementation Method 1
an optical receiver configured to perform photoelectric conversion on packet data received through an optical transmission medium
Implementation Method 2
an optical transmitter configured to perform electrophotic conversion for an output to an optical transmission medium
Data Source
AI summary
An Ethernet-based optical transmission system, and particularly, an apparatus and method for controlling a remote optical Ethernet device. An optical Ethernet apparatus includes a system recovery processor configured to output a system reset signal or a system power ON/OFF control signal and a system recovery controller configured to detect a system recovery command that occurs when a predetermined signal pattern is repeated the designated number of times for a designated period of time, and to control the system recovery processor using the detected system recovery command.