Lighting Control System Using Single Pair Ethernet and Pulsed Power
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Solution Overview
Problem
Existing lighting control systems are hindered by high initial costs and resource-intensive installations due to the need for new infrastructure and complex programming, making them cumbersome and expensive to implement and upgrade.
Innovation Solution
The proposed lighting control system employs Single Pair Ethernet (SPE) protocol and pulsed power technology to enable cost-effective retrofit installations, eliminating the need for separate power and control infrastructure by using a single two-conductor cable for both data and power transmission, and includes a conversion device for integrating with existing systems without requiring new lighting fixture replacements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional lighting control systems are installed, then lighting control functionality is achieved, but installation costs and resource usage increase significantly
Solution Approach 1:
The patent combines power transmission and data communication into a single cable infrastructure using Power over Ethernet (POE) technology. The Ethernet cable simultaneously carries electrical power to illuminate LEDs and data signals for control commands, eliminating the need for separate power wiring and reducing installation complexity.
Solution Approach 2:
The Ethernet cable is used for multiple functions: it provides both power delivery and data communication. The POE switch and controller can operate in multiple modes (DC mode for power delivery, Ethernet mode for data communication), making the system adaptable to different installation scenarios and reducing the need for specialized infrastructure.
2Power
If separate power and control infrastructure are used, then reliable power delivery is achieved, but installation complexity and costs increase
Solution Approach 1:
The patent merges power delivery and control communication into a single Ethernet cable system. The POE technology enables the cable to carry both high-voltage power for illumination and low-voltage data signals for control, simplifying installation while maintaining reliability through integrated design.
Solution Approach 2:
The POE switch acts as an intermediary device that converts standard Ethernet data signals into high-voltage DC power suitable for driving LED arrays. This mediator enables reliable power delivery through existing Ethernet infrastructure without requiring separate power wiring.
Data Source
AI summary
An enhanced lighting control system is provided that utilizes updated communications technology to provide a cost and resource efficient lighting control system that allows for a retrofit installation into existing lighting systems. The lighting control system utilizes single pair ethernet connection protocols, as well as a pulsed power source, to enable the efficiencies.