Lighting Control Device Power Harvesting via Control Interface
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current lighting control systems for luminaires require additional power sources, increasing complexity and cost, and struggle to effectively compensate for lumen depreciation without specialized equipment.
Innovation Solution
A lighting control device that receives power via a control interface, using a control module and processing module to modify control voltages and determine duty cycles for a controllable ballast or driver, eliminating the need for separate power supplies and incorporating power harvesting from control interfaces or communication buses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If additional power sources are incorporated into lighting control systems, then the system can provide sufficient power to control components, but the cost and complexity of the system increases
Solution Approach 1:
The control interface bus is made multi-functional by enabling it to carry both control signals and power delivery. The same communication infrastructure that sends dimming commands and operational data now also provides electrical power to the control device, eliminating the need for separate power wiring and reducing system complexity.
Solution Approach 2:
The patent combines the power delivery function with the existing control interface into a single integrated system. Instead of having separate control and power interfaces, the control bus is designed to simultaneously handle both control communications and power transmission, merging two functions into one infrastructure.
2Reliability
If specialized equipment such as optical or electrical sensors are added to compensate for lumen depreciation, then light output compensation can be achieved, but the costs and complexity of the system increase
Solution Approach 1:
The control device monitors its own operational parameters and automatically adjusts lighting output to compensate for lumen depreciation. By using its existing sensors and processing capabilities, the system self-regulates without requiring external specialized equipment, reducing both cost and complexity while maintaining reliable compensation.
Solution Approach 2:
The system incorporates feedback mechanisms where the control device continuously monitors light output and operational status, then automatically adjusts control signals to maintain desired illumination levels. This closed-loop feedback enables lumen depreciation compensation using the existing control infrastructure rather than requiring additional specialized sensing equipment.
Data Source
AI summary
A lighting control device can include a control module and a processing module. The control module can provide a driving signal. The driving signal can modify a control voltage on a control interface. The control voltage can control a controllable ballast or driver. The processing module can determine a duty cycle of the driving signal. The control module and the processing module can receive power via the control interface and a power supply on the control device.