Visible Light Lamp Addressing for Faster DALI Configuration
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Solution Overview
Problem
Existing lighting control systems face challenges in efficiently configuring unique addresses for lighting lamps, leading to increased installation time, potential errors, and duplication of addresses, especially in systems like DALI, where random number generation can result in inaccurate recognition of blinking signals and overlapping addresses.
Innovation Solution
A lighting address configuration system using visible light communication, which includes a lighting control unit, a visible light receiving device, and an address configuration device, allows direct configuration of addresses through blinking operations, enhancing recognition rates and reducing duplication by generating random numbers and designating specific addresses for each lamp.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a dip switch is equipped in each lighting lamp to configure address before installation, then address configuration is possible, but installation time increases and rework is needed when configuration is incorrect
Solution Approach 1:
The patent replaces the mechanical dip switch system with an optical communication system using visible light. The lighting lamp communicates address information through visible light blinking patterns detected by a receiver, eliminating the need for physical dip switch manipulation during installation. This substitution reduces installation time while maintaining configuration accuracy through automated detection and confirmation protocols.
Solution Approach 2:
The lighting lamp system performs self-configuration by automatically generating and transmitting address information through visible light blinking. The receiver automatically detects and stores the address without requiring manual intervention, enabling the system to configure itself autonomously and reduce installation time while preventing configuration errors.
2Ease of manufacture
If address is configured in advance at shipment with indication on installation drawing, then address is predetermined, but installation time increases and rework is needed for incorrect configuration
Solution Approach 1:
The patent replaces the manual process of reading installation drawings and physically configuring addresses with an automated optical communication system. The lighting lamp transmits its address through visible light blinking, and the receiver automatically captures and stores it, eliminating the need for installers to consult drawings and manually configure addresses, thereby reducing installation time while maintaining simplicity.
Solution Approach 2:
The visible light communication system acts as an intermediary between the lighting lamp and the control system. Instead of requiring direct human intervention to read drawings and configure addresses, the optical communication medium automatically transfers address information from the lighting lamp to the receiver, streamlining the installation process.
3Adaptability or versatility
If DALI system automatically generates 3 bytes (0 to 16,777,215) for address configuration, then address space is expanded, but communication time increases significantly at 1200 bps
Solution Approach 1:
The patent uses periodic blinking of visible light to transmit address information. Instead of continuous communication at 1200 bps, the system transmits address data through timed blinking patterns that can be detected instantaneously by the receiver. This periodic optical signaling dramatically reduces configuration time while maintaining the ability to handle large address spaces through efficient encoding schemes.
Solution Approach 2:
The patent substitutes the electrical communication protocol (DALI at 1200 bps) with an optical communication system using visible light blinking. This substitution enables much faster address configuration because the optical transmission can convey the entire address information through a series of blinks much more quickly than serial electrical communication, while preserving the expanded address space capability.
4Extent of automation
If random numbers are issued for address configuration, then address assignment is automated, but duplication possibility increases and recognition rate of blinking signal decreases
Solution Approach 1:
The patent implements a feedback mechanism where the receiver detects the visible light blinking containing random address information and sends confirmation signals back to the lighting lamp. The system continues the blinking and confirmation process until a unique address is confirmed, ensuring no duplication occurs while maintaining full automation. This feedback loop resolves the contradiction by automating the process while guaranteeing address uniqueness through verification.
Solution Approach 2:
The visible light communication serves as an intermediary that carries not only the random address number but also verification information. The optical transmission medium enables the receiver to detect and verify the uniqueness of the transmitted address before finalizing the configuration, thereby maintaining automation while preventing duplication through the intermediary verification process.
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
The system enables efficient and accurate address configuration post-installation, reducing maintenance time and preventing unnecessary simultaneous blinking, while minimizing address duplication and improving overall system quality.
Implementation Method 1
LED blinking signal according to its address value or generated random number
Implementation Method 2
receive only a blinking signal of the lighting lamp located in a periphery and block light from other lighting lamps
Data Source
AI summary
The present invention relates to a lighting address configuration system using visible light communication, which may allow direct configuration of a desired address under a lighting for which an address is desired to be configured after installing the lighting by using visible light generated by blinking of the corresponding lighting, improve a recognition rate of a visible light signal according to blinking of the light, and improve quality by greatly reducing a possibility of duplication when issuing random numbers for address configuration.