LED Lighting Apparatus Power Source Life Detection
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Solution Overview
Problem
Current lighting apparatuses, particularly those using LEDs, face challenges in managing the lifespan of their components, as LED degradation is gradual and not immediately noticeable, leading to potential health hazards due to reduced brightness, and existing solutions fail to effectively monitor and manage the life of power sources like electrolytic capacitors.
Innovation Solution
A lighting apparatus is designed with a power source unit, a detector unit to monitor the power source's ability, and a determination unit to assess the lifespan of both the power source and LEDs, providing notifications and controlling light intensity or emission based on these determinations to ensure safe and timely replacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of stationary object
If LED lighting is used for general ceiling illumination, then energy efficiency and longevity are improved, but gradual degradation of LED brightness occurs over time which is not immediately noticeable
Solution Approach 1:
The patent applies preliminary action by detecting LED degradation trends before significant brightness loss occurs. The system continuously monitors electrical characteristics and predicts remaining useful life, enabling proactive maintenance scheduling and replacement planning before the LEDs fail to provide adequate illumination.
Solution Approach 2:
The patent implements feedback mechanisms by continuously monitoring electrical parameters (current, voltage, power consumption) of the LED module and comparing them against baseline characteristics. This feedback loop enables real-time detection of degradation trends and provides information for maintaining reliable brightness levels throughout the LED's operational life.
2Power
If power source components like electrolytic capacitors are used in LED lighting, then initial performance is improved, but these components have limited lifespan and degrade over time affecting overall system reliability
Solution Approach 1:
The patent applies preliminary action by detecting early signs of power source component degradation through monitoring electrical characteristics such as ripple voltage, power factor, and efficiency changes. The system predicts remaining useful life of components like electrolytic capacitors before they fail, enabling proactive replacement planning.
Solution Approach 2:
The patent implements feedback by continuously monitoring electrical parameters that indicate power source health status. The system compares real-time measurements against baseline performance and degradation models to detect trends, providing feedback for maintaining reliable power supply throughout the component's operational life.
3Device complexity
If no life management system is implemented, then device complexity is reduced, but appropriate replacement timing cannot be determined leading to potential health hazards
Solution Approach 1:
The patent applies universality by designing a control unit that performs multiple functions: it controls LED illumination, monitors electrical characteristics for degradation detection, calculates remaining useful life, and provides replacement notifications. This multi-functional approach manages safety and reliability without adding separate dedicated systems.
Solution Approach 2:
The patent implements self-service by enabling the lighting system to autonomously monitor its own health status, detect degradation trends, and determine when replacement is needed. The system uses its existing sensors and processors to perform life management functions without requiring external monitoring equipment.
Data Source
AI summary
A lighting apparatus of the present invention includes: a light source; a power source unit arranged to power the light source; a detector unit arranged to detect the deterioration of ability of the power source unit to power the light source; and a determination unit arranged to determine the life of the power source unit in response to the detector unit.