Optical Node Power Scheduling for Single-Laser Remote Switching
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Solution Overview
Problem
Existing optical power supply systems for remote optical line switching in optical fiber networks face challenges in economical construction and efficient remote control of multiple nodes, as they require multiple power supply lasers and lack clear methods for selecting and switching ports or paths.
Innovation Solution
A monitoring control device that includes an optical selector and control unit to manage power supply and time allocation based on stored energy levels, allowing simultaneous power supply and control of multiple optical nodes using a single laser, with a system that determines node selection based on energy levels and optimizes power usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple power supply lasers are used to drive multiple optical nodes, then each node can be independently powered, but the system cost increases and economic efficiency decreases
Solution Approach 1:
Multiple optical nodes share a single power supply laser through time-division multiplexing. The control unit allocates different time slots to different nodes, allowing one laser to sequentially power multiple nodes without requiring each node to have its own dedicated laser, thereby reducing system cost while maintaining power supply reliability
Solution Approach 2:
The power supply laser operates in periodic time-division mode, alternating between different optical nodes in scheduled time slots. Each node receives power during its allocated time slot and stores energy in its storage battery, enabling the single laser to serve multiple nodes through periodic operation rather than continuous simultaneous operation
2Ease of operation
If optical power supply is implemented for remote optical line switching, then physical site visits are eliminated, but the system lacks clear remote control methods for port selection and path switching
Solution Approach 1:
The control unit performs multiple functions including power supply timing control, port selection, and path switching instructions through a single integrated device. This multi-functional approach enables comprehensive remote control of optical nodes without requiring separate dedicated control devices for each function, simplifying the overall control system while maintaining ease of remote operation
Solution Approach 2:
The control unit acts as an intermediary between the power supply laser and the optical nodes, transmitting both power supply timing signals and control instructions (port selection, path switching) through the optical fiber. This intermediary device coordinates all remote control operations, providing clear and systematic control methods for remote optical line switching
3Duration of action of stationary object
If power supply time is extended to charge storage batteries in optical nodes, then nodes can operate independently longer, but the available time for optical line switching operations decreases
Solution Approach 1:
The system uses periodic time-division multiplexing where the power supply laser alternates between charging phases and switching phases. During charging phases, energy is stored in node batteries; during switching phases, control operations are executed. This periodic alternation allows both extended operation duration and maintained switching productivity by efficiently utilizing different time slots for different functions
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
Enables economical construction and efficient remote control of multiple optical nodes by optimizing power supply and switch control, ensuring efficient use of facilities in optical fiber networks.
Implementation Method 1
photoelectric conversion is executed by transmitting stationary light from a monitoring device including a laser light source and an optical receiver
Data Source
AI summary
The disclosure provides a monitoring control device and an optical power supply system in which a system capable of remotely controlling many optical power supply type optical nodes can be economically constructed. A monitoring control device according to the present disclosure includes control means for executing power supply and power supply time allocation for selecting a control target optical node based on the amount of stored energy of a plurality of optical nodes. According to the present disclosure, in a system that includes a monitoring control device installed in a power supply environment and one or a plurality of remotely arranged optical line switching nodes, optical power supply and control of a plurality of optical switches included in the nodes and management of an amount of stored power can be simultaneously implemented with a single laser. Thus, it is possible to provide an economical optical line switching node system.