Optical Connection Registration in Disaggregated ROADM Systems
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Solution Overview
Problem
In distributed optical transmission apparatuses, managing the connection state between component devices becomes complex as the number of routes increases, making it difficult to register wiring information in a database effectively, especially in disaggregated ROADM systems where individual control of each device is necessary.
Innovation Solution
A control apparatus that automatically detects and registers the connection state by outputting light from a component device, monitoring light reception levels across ports, and identifying the port with the highest reception level to register the connection destination in a database, using amplified spontaneous emission (ASE) light without a special test device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the number of routes in disaggregated ROADM increases, then the routing capability and versatility of the system is improved, but the complexity of managing connection states and registering wiring information increases significantly
Solution Approach 1:
The system performs self-diagnosis by automatically detecting connection states through light emission and reception level measurement. Each component device autonomously identifies its connection status by measuring light reception levels at its ports, eliminating the need for manual wiring information registration and reducing management complexity as routes increase
Solution Approach 2:
The control apparatus establishes a feedback mechanism where light reception levels are continuously monitored and used to automatically update connection state information in the database. This closed-loop approach ensures the database remains synchronized with actual physical connections without manual intervention
2Manufacturing precision
If manual registration of wiring information is performed, then initial setup is straightforward, but the workload and time required increase significantly as the number of component devices increases
Solution Approach 1:
The patent replaces manual mechanical registration processes with automated optical detection. Instead of manually recording wiring information, the system uses light emission and reception level measurement to automatically detect and register connection states, dramatically reducing registration time while maintaining accuracy
Solution Approach 2:
Light serves as an intermediary carrier to transmit connection state information. By using light emission and detection as a mediator, the system indirectly obtains wiring information without direct manual intervention, enabling automated registration of connection states between component devices
3Measurement precision
If specialized test devices are used for connection detection, then measurement precision is improved, but system cost and complexity increase
Solution Approach 1:
The control apparatus performs multiple functions using the same light emission and detection mechanism. The system uses light not only for optical signal transmission in the ROADM but also for connection state detection, eliminating the need for specialized test devices and reducing overall system complexity
Solution Approach 2:
The component devices perform self-detection of connection states by measuring light reception levels at their own ports. Each device autonomously identifies its connection status without requiring external specialized test equipment, reducing system complexity while maintaining detection accuracy
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 dynamic detection and registration of connection states between component devices, reducing manual registration needs and allowing for automated internal connection information management within the ROADM system.
Implementation Method 1
a device setting unit which performs setting such that light is output from a component device that is a connection source; and a registration processing unit which acquires a light reception level of each port in each component device on a side receiving the light
Data Source
AI summary
A control apparatus for registering a connection state between component devices constituting a distributed optical transmission apparatus in a database includes: a device setting unit which performs setting such that light is output from a component device that is a connection source; and a registration processing unit which acquires a light reception level of each port in each component device on a side receiving the light, identifies a port having a light reception level higher than light reception levels of other ports, and registers a component device having the identified port and the identified port in the database as a connection destination of the component device that is the connection source.