Light Guide for Field Replaceable Unit Failure Detection
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Solution Overview
Problem
Identifying failures in field replaceable units within electronic devices is challenging due to user mishandling and miscalculations, leading to wasted time and potential damage to costly equipment.
Innovation Solution
A light guide system that couples with electronic units to indicate operational states through optical energy from a light source, such as an LED, mounted on a circuit board, which transmits signals of operational states like flashes, color changes, or intensity changes, eliminating the need for additional wiring and simplifying the replacement process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional failure detection methods are used, then users can identify failures, but user mishandling and miscalculations occur leading to wasted time and potential damage to costly equipment
Solution Approach 1:
The patent employs color-coded indicators on field replaceable units to provide immediate visual identification of unit status and type. Different colors indicate different units or states, enabling users to quickly and accurately identify the correct unit for replacement without confusion or mishandling, thereby resolving the contradiction between accurate failure detection and risk of incorrect disconnection
Solution Approach 2:
The system incorporates visual feedback mechanisms through colored indicators that provide immediate information about unit status. This feedback loop allows users to verify they are selecting the correct unit without requiring complex diagnostic procedures, reducing both time wasted and risk of damage while maintaining high identification accuracy
2Loss of information
If additional wiring and modifications are added to enable status indication, then operational state can be indicated, but device complexity and manufacturing cost increase
Solution Approach 1:
The patent extracts the status indication function from the electronic circuitry and implements it through simple visual indicators integrated into the field replaceable unit housing. By separating the indication function from complex wiring systems, the patent provides operational state information without requiring additional wiring or modifications to the unit's electrical connections
Solution Approach 2:
The patent introduces visual indicators as intermediary elements that communicate operational state information without requiring direct electrical connections or complex wiring between components. These indicators serve as a simple mediator that conveys status information while avoiding the complexity of additional wiring and modifications
3Measurement precision
If comprehensive status indication is implemented, then accurate failure identification is achieved, but the replacement process becomes more complex
Solution Approach 1:
The patent uses color-coded indicators that provide comprehensive status information through simple visual cues. Users can quickly interpret color changes to identify failure conditions and select the correct unit for replacement, maintaining high detection accuracy while keeping the replacement process simple and intuitive without adding operational complexity
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
Facilitates accurate identification of failed units, reducing the risk of incorrect disconnection and minimizing equipment damage by providing clear visual feedback without requiring modifications to existing fan units or additional wiring, thus streamlining the replacement process.
Implementation Method 1
a light guide extending along a body structure of the electronic unit and signaling an operational state of the electronic unit... communicates optical energy from a light source coupled to the electronic unit
Implementation Method 2
The light source is a light emitting diode (LED) that indicates the operational state of the electronic unit
Data Source
AI summary
An apparatus is provided in one example embodiment and includes a light guide configured to couple to an electronic unit. The electronic unit is a replaceable unit of an electronic component, the light guide extending along a body structure of the electronic unit and signaling an operational state of the electronic unit. In more specific embodiments, the light guide communicates optical energy from a light source coupled to the electronic unit and configured to indicate the operational state of the electronic unit. In still other embodiments, the light source is a light emitting diode (LED) that indicates the operational state of the electronic unit. The light guide can include a light input that enhances an optical coupling between the light source the light guide. In still other embodiments, the light guide includes a curved portion that changes a direction of optical energy propagating within the light guide.