Power Management Unit With Temperature Protection For LED Lighting
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Solution Overview
Problem
Conventional lighting systems for retrofit and new applications are costly due to wiring and power expenses, lack a one-size-fits-all approach, and are not equipped to handle variability in electricity pricing models or environmental conditions effectively.
Innovation Solution
Modular lighting systems with LED or non-LED fixtures, designed for various directions and beam angles, that can be centrally controlled through a network to manage lighting based on energy demand, alternative energy usage, and environmental conditions, incorporating sensors and energy storage for efficient energy use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional lighting systems are installed for retrofit applications, then lighting coverage is achieved, but wiring and power expenses increase significantly
Solution Approach 1:
The lighting system is divided into modular fixtures that can be independently installed and managed. Each fixture operates as a separate unit with its own power management capabilities, allowing selective installation in specific areas rather than requiring complete system-wide wiring infrastructure.
Solution Approach 2:
The system adapts to varying electricity pricing models by dynamically adjusting operational parameters such as lighting intensity and scheduling. It responds to time-of-use pricing, demand response events, and alternative energy availability to optimize power consumption and costs.
2Reliability
If conventional lighting systems are deployed, then basic illumination is provided, but adaptability to environmental conditions and electricity pricing models is lacking
Solution Approach 1:
The lighting system dynamically adjusts its operation based on real-time environmental conditions and electricity pricing signals. Sensors detect ambient light levels, occupancy, and temperature, while the control system responds to variable pricing models by modifying lighting schedules and intensity to optimize both performance and cost-effectiveness.
Solution Approach 2:
The system incorporates sensors and monitoring capabilities that provide continuous feedback on environmental conditions, power consumption, and pricing signals. This feedback loop enables automatic adjustments to lighting operations, allowing the system to adapt to changing conditions without manual intervention.
3Use of energy by moving object
If temperature protection is not implemented in LED lighting, then power consumption is reduced, but LED lifespan and reliability decrease due to overheating
Solution Approach 1:
The system proactively monitors LED junction temperature and predicts thermal conditions before overheating occurs. By anticipating temperature rises based on ambient conditions and power levels, the system can pre-adjust power delivery or activate cooling measures to prevent thermal damage while maintaining optimal performance.
Solution Approach 2:
Temperature sensors provide continuous feedback on LED thermal conditions, enabling the power management unit to dynamically adjust power delivery. When temperatures approach critical thresholds, the system automatically reduces power or activates cooling, creating a closed-loop control that protects LED lifespan while minimizing unnecessary power reductions.
Data Source
AI summary
In embodiments of the present invention, a method and system is provided for designing improved intelligent, LED-based lighting systems. The LED based lighting systems may include fixtures with one or more of rotatable LED light bars, integrated sensors, onboard intelligence to receive signals from the LED light bars and control the LED light bars, and a mesh network connectivity to other fixtures.