Luminaire SPD Failure Indication Through External LED Monitoring
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Solution Overview
Problem
Existing luminaire systems lack a reliable and visible failure indication mechanism for surge protection devices (SPDs), leading to prolonged troubleshooting and potential replacement of entire components when SPDs fail.
Innovation Solution
Incorporating a luminaire system with a surge protection device that includes monitoring circuitry and an indicator device, such as a LED, to visibly signal SPD failure from outside the housing, allowing easy detection without disassembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If SPDs with monitoring circuitry are used to detect malfunctioning, then reliability of failure detection is improved, but device complexity increases due to additional monitoring circuitry and indicator devices
Solution Approach 1:
An indicator device is introduced as an intermediary component that visually represents the internal state of the SPD. The monitoring circuitry detects malfunctioning internally, and the indicator device serves as a mediator to communicate this state externally through visible indicators, resolving the contradiction by separating detection complexity from user interaction simplicity.
Solution Approach 2:
A feedback mechanism is implemented where the monitoring circuitry continuously monitors the surge protection circuitry and provides real-time status information through the indicator device. This closed-loop feedback system improves reliability by ensuring immediate detection and indication of failures without requiring manual inspection.
2Ease of operation
If indicator device is made visible from outside luminaire housing, then ease of operation for detecting failure is improved, but device complexity increases due to additional indicator components
Solution Approach 1:
The indicator device acts as an intermediary that translates internal electrical failure states into externally visible optical signals. This allows operators to detect failures from outside the luminaire housing without increasing the complexity of the core surge protection function, as the indicator is a separate communication component.
Solution Approach 2:
The patent replaces mechanical inspection methods (opening the housing to check components) with an optical indication system. The indicator device uses light emission or reflection visible from outside the housing, substituting mechanical access with optical signaling to improve ease of operation.
3Ease of operation
If transparent or translucent cover is used to make indicator visible, then ease of operation is improved, but manufacturing precision requirements increase for the cover
Solution Approach 1:
The patent utilizes optical properties of transparent or translucent materials to allow visibility of the indicator device through the cover. By selecting materials with appropriate optical transmission characteristics, the system achieves external visibility without requiring complex mechanical modifications or high-precision manufacturing features in the cover.
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 quick identification of SPD failures, reducing maintenance time and costs by providing a visible indication of malfunction, thus enabling timely replacement.
Implementation Method 1
an indicator device, such as a LED, to visibly signal SPD failure
Data Source
AI summary
Example embodiments relate to luminaire systems with SPD. One example luminaire system includes a luminaire housing, a support with at least one light source arranged thereon, a drive means configured for driving the at least one light source, a surge protection device between a power supply and the drive means, and an indicator device. The surge protection device includes surge protection circuitry and monitoring circuitry configured to monitor a malfunctioning of the surge protection circuitry and provide an output signal based on the monitoring. The monitoring circuitry is connected such that a state of the indicator device is changed when the output signal indicates a malfunctioning. The indicator device is arranged at a location which is such that the state of the indicator device is visible from outside of the luminaire housing.