Logging Mechanism for Intelligent Transmitter Module
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Solution Overview
Problem
Current optoelectronic devices lack a mechanism for persistently logging operational information, making it difficult to diagnose malfunctions and understand the conditions under which they operated, especially due to environmental and operational parameter variations such as temperature and power fluctuations.
Innovation Solution
An optoelectronic device with an Intelligent Transmitter Module (ITM) that includes a microcontroller and persistent memory, which logs operational data like laser wavelength, temperature, bias current, and TEC current, allowing for post-failure analysis of operational circumstances.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If no persistent logging mechanism is implemented, then the device complexity remains low, but the ability to diagnose malfunctions and analyze operational conditions is severely limited
Solution Approach 1:
The patent implements preliminary action by continuously logging operational parameters (temperature, bias current, wavelength, TEC current) into persistent memory during normal device operation. This pre-recording of data enables post-failure analysis without requiring additional diagnostic equipment or actions at the time of malfunction, directly improving ease of repair while adding minimal complexity through standard memory and controller components.
2Reliability
If operational parameters are continuously monitored and logged, then the reliability of failure diagnosis improves, but the use of energy increases due to additional monitoring and storage operations
Solution Approach 1:
The patent applies partial action by selectively logging only the most critical operational parameters (temperature, bias current, wavelength, TEC current) rather than continuously monitoring all possible device states. This selective approach provides sufficient reliability for diagnosing common failures while minimizing the energy overhead of continuous monitoring and data storage operations.
3Loss of information
If detailed operational information is recorded in persistent memory, then the loss of information after malfunction is reduced, but the device complexity increases due to additional memory and control components
Solution Approach 1:
The patent implements universality by designing the persistent memory and microcontroller to serve multiple functions: logging operational parameters, storing error codes, tracking device state changes, and providing diagnostic information. This multi-functional approach reduces overall device complexity compared to implementing separate dedicated systems for each function, while comprehensively reducing information loss through unified data retention.
Data Source
AI summary
An optoelectronic device having an intelligent transmitter module (“ITM”) includes a mechanism for logging operational information regarding the ITM. The optoelectronic device includes a microcontroller and a persistent memory. The microcontroller is configured to identify the operational information, and write log information representing the operational information to the persistent memory. The operational information may include statistical data about operation, or may include measured parameters. Log entries may be made periodically and/or in response to events. The log may then be evaluated to determine the conditions under which the ITM has historically operated.