Optical Communication Device Maintenance Terminal for Safe Output Control
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Solution Overview
Problem
Current optical communication systems face challenges in safely stopping or reducing optical output during maintenance operations without causing operational errors or compromising maintenance operator safety, as existing methods require shutting down multiple devices and rely on network connection diagrams that can be misinterpreted, and cannot handle non-fault scenarios like route modifications.
Innovation Solution
An optical communication device with a command input unit, transmitting unit, receiving unit, and command executing unit that allows for remote control of optical output stop or reduction commands, enabling individual device control and notification of maintenance state transitions, independent of fault occurrence, and includes an excitation light management system for Raman amplification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If optical output stop command is transmitted to multiple optical communication devices to ensure safety during maintenance, then operator safety is improved, but device complexity and operational complexity increase
Solution Approach 1:
The patent introduces a maintenance terminal as an intermediary device that mediates between the operator and multiple optical communication devices. The terminal automatically identifies all devices in the maintenance segment and transmits stop commands to them, eliminating the need for the operator to manually determine which devices to shut down while ensuring complete safety coverage
Solution Approach 2:
The system enables self-service by allowing the maintenance terminal to automatically query the network management system to obtain the list of optical communication devices in the maintenance segment. The terminal then autonomously transmits stop commands to all identified devices without requiring operator intervention for each individual device, reducing operational complexity
2Measurement precision
If network connection diagram is used to identify optical communication devices for shutdown, then device shutdown accuracy is improved, but time consumption increases
Solution Approach 1:
The patent replaces the manual mechanical process of interpreting network connection diagrams with an automated electronic information query system. The maintenance terminal electronically queries the network management system to obtain real-time device identification information, eliminating manual diagram analysis and significantly reducing time consumption while maintaining or improving accuracy
Solution Approach 2:
The system implements feedback by having the maintenance terminal query the network management system to obtain current operational status and device identification information. This real-time feedback mechanism ensures accurate identification of devices requiring shutdown without requiring manual interpretation of static diagrams, reducing time consumption while maintaining accuracy
3Object-affected harmful factors
If APR function is activated to stop optical output upon fault detection, then safety is improved, but adaptability to non-fault scenarios is worsened
Solution Approach 1:
The patent transforms the static, fault-triggered APR function into a dynamic system that can respond to multiple conditions. The maintenance terminal can initiate optical output stop commands based on maintenance schedules, route modifications, or operator requests, not just fault conditions. This dynamic approach maintains safety while adapting to various non-fault scenarios
Solution Approach 2:
The maintenance terminal serves multiple functions: it identifies devices in the maintenance segment, transmits stop commands, monitors command execution, and supports various maintenance scenarios including scheduled maintenance, route modifications, and emergency situations. This multi-functional design replaces the single-purpose APR function, improving adaptability while maintaining safety
4Object-affected harmful factors
If optical communication devices are shut down to stop optical output in maintenance segment, then operator safety is improved, but service continuity is worsened
Solution Approach 1:
The patent applies segmentation by precisely identifying and isolating only the optical communication devices located in the specific maintenance segment through automated querying of the network management system. This targeted approach shuts down only the necessary devices while keeping other devices operational, maintaining service continuity in non-maintenance areas while ensuring operator safety in the maintenance segment
Solution Approach 2:
The system implements local quality by applying the optical output stop command selectively to specific devices in the maintenance segment rather than globally to all devices. The maintenance terminal queries the network management system to obtain precise location information and transmits commands only to relevant devices, ensuring local safety improvement without affecting overall service continuity
Data Source
AI summary
An input of a command to stop optical output or a command to reduce optical output by a main signal transmitting section is received from the outside. When the input of the optical output stop command or optical output reduction command is received, an inter-device control signal communication section transmits the optical output stop command or optical output reduction command. Based on the input optical output stop command or optical output reduction command, an output of optical signals from the main signal transmitting section is stopped, or else the output level is reduced to less than the output level during normal operation.