Abnormality Identification Device for Communication Systems
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Solution Overview
Problem
Existing communication system methods cannot accurately determine whether a communication abnormality is due to a device or line failure, leading to unnecessary replacements in suspected areas where no failure occurs.
Innovation Solution
An abnormality identification device with output units for transmission signal suitability, reception signal suitability, and processed signal suitability, allowing for identification of suspected areas within communication devices and paths by analyzing LED statuses and signal processing results.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Difficulty of detecting and measuring
If light intensity monitoring is used to detect communication abnormalities, then abnormality detection capability is improved, but the ability to identify the specific cause (device failure vs. line breaking) deteriorates
Solution Approach 1:
The patent segments the communication system into three distinct monitoring points: transmission signal output from communication device, reception signal at optical fiber amplifier input, and processed signal after optical-to-electrical conversion. Each segment has its own monitoring device that outputs separate information, allowing the system to identify which specific segment contains the abnormality rather than just detecting that an abnormality exists somewhere in the system.
2Measurement precision
If comprehensive signal monitoring is implemented to identify abnormality causes, then diagnostic accuracy is improved, but device complexity increases
Solution Approach 1:
Each monitoring device is equipped with output means that automatically indicates the status of its monitored signal. The first monitoring device outputs information about transmission signal suitability, the second outputs information about reception signal suitability, and the third outputs information about processed signal suitability. This self-indicating capability eliminates the need for complex centralized analysis systems, as the monitoring results are directly presented in a readily interpretable format.
Data Source
AI summary
In order to enable an area suspected of having a communication abnormality to be identified from among a communication device and a communication path that constitute a communication system, this abnormality identification device is provided with: a first output unit which outputs first information that is information indicating the suitability of a transmission signal to be supplied to a communication channel; a second output unit which outputs second information that is information indicating the suitability of a reception signal corresponding to the transmission signal that has arrived via the communication channel; and a third output unit which outputs third information that is information indicating the suitability of a signal obtained by applying predetermined processing to the reception signal.