Photoelectric Signal Transmission for Accurate Optical Time Sync
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Solution Overview
Problem
Existing time synchronization methods in optical communication systems are complex, costly, and result in poor synchronization accuracy due to the time-consuming process of extracting time synchronization signals from service data, leading to deviations in time synchronization.
Innovation Solution
A signal processing device with first and second photoelectric conversion modules that directly convert optical signals, including time synchronization signals, into electrical and optical signals of preset frequencies for transmission, bypassing the need for extraction and processing, thereby improving accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If time synchronization signals are extracted from service data through complex processing, then signal transmission can be achieved, but synchronization accuracy deteriorates due to time-consuming extraction processes
Solution Approach 1:
The patent extracts only the necessary time synchronization signal component from the optical signal transmission line, separating it from service data. This allows direct processing of the synchronization signal without time-consuming extraction from complex data streams, thereby improving synchronization accuracy while minimizing time loss.
Solution Approach 2:
The system performs preliminary separation of the time synchronization signal at the optical signal transmission line before full processing occurs. By preparing and isolating the synchronization signal in advance, the system avoids time-consuming extraction during critical synchronization operations, thus improving both accuracy and speed.
2Reliability
If traditional optical transport network systems are used for time synchronization, then signal transmission is possible, but device complexity and cost increase
Solution Approach 1:
The optical signal transmission line is designed to serve multiple functions simultaneously: transmitting both service data and time synchronization signals through the same infrastructure. This multi-functionality eliminates the need for separate dedicated synchronization systems, reducing device complexity and cost while maintaining reliable time synchronization.
Solution Approach 2:
The patent merges the time synchronization signal transmission with the existing service data transmission by using the same optical signal transmission line. This consolidation integrates synchronization functionality into the general communication infrastructure, simplifying the overall system architecture and reducing the number of separate components needed.
3Adaptability or versatility
If time synchronization signals are processed through multiple conversion stages, then signal compatibility is improved, but processing delays increase
Solution Approach 1:
The patent introduces an intermediary photoelectric conversion module that directly converts optical signals to electrical signals without requiring multiple intermediate processing stages. This single-step conversion approach maintains signal compatibility while minimizing processing delays by eliminating redundant conversion steps.
Solution Approach 2:
The system skips intermediate processing stages by directly converting optical signals to electrical signals in a single step. This rushing through of the conversion process reduces the number of delays introduced by multiple processing stages, thereby improving real-time synchronization performance while maintaining compatibility.
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 approach enhances the accuracy and efficiency of time synchronization signals by eliminating interference and reducing delays, ensuring consistent time synchronization between communication devices.
Implementation Method 1
a first photoelectric conversion module configured to receive an optical signal to be sent that is sent by a time synchronization device, convert the optical signal to be sent into an electrical signal to be sent
Implementation Method 2
a second photoelectric conversion module configured to convert the electrical signal to be sent into a first optical signal of a preset frequency
Data Source
AI summary
A signal processing device includes a first photoelectric conversion module and a second photoelectric conversion module; the first photoelectric conversion module is configured to receive an optical signal to be sent that is sent by a time synchronization device, convert the optical signal to be sent into an electric signal to be sent, and transmit the electric signal to be sent to the second photoelectric conversion module, where the optical signal to be sent is generated by the time synchronization device according to an initial electrical signal, and the initial electrical signal includes a service signal and a time synchronization signal; and the second photoelectric conversion module is configured to convert the electrical signal to be sent into a first optical signal of a preset frequency, and send the first optical signal to a first optical path coupling device, causing the first optical path coupling device to couple the first optical signal to an optical signal transmission line for transmission.