Optical Fiber Amplifier Control Using Node ID Verification
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In optical fiber communication systems, incorrect fiber connections during manual repair can lead to data transmission errors and security issues due to improper switching of optical fiber amplifiers, causing traffic black holes when optical fibers are mistakenly connected across different wavelength division multiplexing (WDM) transmission systems.
Innovation Solution
Implementing a control method and apparatus that utilize optical supervisory channels to verify node identifiers before switching on optical fiber amplifiers, ensuring correct reconnection by matching pre-stored identifiers, thus preventing incorrect activation and maintaining data security.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If the optical fiber amplifier is automatically switched on when the optical fiber is restored, then the system recovery speed is improved, but the risk of incorrect connection and data transmission errors increases
Solution Approach 1:
The patent applies preliminary action by verifying node identifiers through optical supervisory channel messages before switching on the optical fiber amplifier. The transmitting end sends a recovery notification message containing its node identifier to the receiving end, which verifies the identifier against pre-stored reference information. Only after successful verification does the system switch on the amplifier, ensuring connection accuracy while maintaining automated recovery.
2Reliability
If the optical fiber amplifier is manually switched on after fiber repair, then connection accuracy is improved, but the system recovery time increases
Solution Approach 1:
The patent implements feedback by establishing a verification mechanism where the receiving end sends back verification results to the transmitting end. The transmitting end sends a recovery notification message, the receiving end verifies the node identifier, and sends a verification result message back. Based on this feedback, the transmitting end automatically switches on the amplifier only when verification succeeds, combining automated speed with accuracy.
3Ease of operation
If automated switching control is implemented without identifier verification, then the ease of operation is improved, but the occurrence of traffic black holes and data security issues increases
Solution Approach 1:
The patent uses the optical supervisory channel as an intermediary to carry verification information between transmission nodes. The recovery notification message and verification result message are transmitted through this intermediary channel, enabling automated verification without interfering with the main data transmission path. This maintains ease of automated operation while preventing harmful data transmission errors through identifier matching.
Data Source
AI summary
A method and an apparatus for controlling an optical fiber amplifier, a system, a transmission node and a storage medium. WDM transmission systems are deployed between a first communication end and a second communication end. At least one target WDM transmission system includes a first transmission node and a second transmission node. The first transmission node receives a first control signal including an identifier of the second transmission node, and switches on a transmit-end optical fiber amplifier of the first transmission node if determining that the first control signal is a normal control signal and the second transmission node identifier matches a pre-stored first reference node identifier. The second transmission node receives a second control signal including an identifier of the first transmission node, and performs a similar judgment to switch on a transmit-end optical fiber amplifier of the second transmission node.