Automatic Illumination Control via Position-Based Assignments
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Solution Overview
Problem
Conventional illumination control methods face challenges in efficiently managing large numbers of lightings, requiring manual assignment of lighting numbers and installation of illuminance sensors, which complicates centralized control and affects luminance precision across multiple lightings.
Innovation Solution
An automatic illumination control apparatus that calculates illuminance contributions and luminance values for each lighting, using a centralized or distributed control method, allowing for wireless or wired communication to adjust lighting levels based on target illuminance and position information, eliminating the need for manual sensor installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If conventional illumination control methods (DALI/DMX512) are used to connect multiple lightings, then the number of connected lightings increases, but manual assignment of lighting numbers becomes difficult and time-consuming
Solution Approach 1:
The system automatically detects the positions of lightings and assigns lighting numbers based on spatial relationships without requiring manual intervention. The controller autonomously calculates which lighting corresponds to which number based on their relative positions, making the system self-configuring.
Solution Approach 2:
The system changes the control parameter from manual lighting number assignment to automatic position-based assignment. By using spatial coordinates and relative position information as the basis for control, the system transforms the operation mode from manual configuration to automatic detection and assignment.
2Ease of operation
If illuminance sensors are installed around the user to control luminance, then luminance control capability is improved, but device complexity and maintenance requirements increase
Solution Approach 1:
The patent extracts the illuminance sensing function from separate physical sensors and integrates it into the existing lighting devices. Each lighting unit is equipped with an illuminance sensor that detects illuminance at its own position, eliminating the need for separate sensor installations around the user.
Solution Approach 2:
The lighting units serve multiple functions: they provide illumination while also containing illuminance sensors for detection. The same lighting device that emits light also measures illuminance, making the system more versatile and reducing the need for additional components.
3Illumination intensity
If luminance control of one lighting is adjusted, then illumination at that position changes, but illuminances of other positions are affected making precise control difficult
Solution Approach 1:
The system divides the control space into discrete zones corresponding to each lighting's illuminance contribution area. By segmenting the overall illumination control into individual lighting-specific controls based on their spatial contributions, the system allows precise adjustment of each lighting without affecting others.
Solution Approach 2:
The system uses illuminance sensors in each lighting to provide feedback about the actual illuminance conditions. This feedback is used by the controller to automatically adjust luminance values, creating a closed-loop control system that achieves precise illumination control.
Data Source
AI summary
An illumination control method includes calculating illuminances of a plurality of lighting apparatuses for at least one flat target surface on the basis of information regarding the lighting apparatuses stored in a database and flat target surface information received from a user, calculating an illuminance contribution of each of the lighting apparatuses for the at least one flat target surface on the basis of the illuminances of the plurality of lighting apparatuses for the at least one flat target surface, and calculating a luminance value of each of the lighting apparatuses on the basis of a target illuminance received from the user and the illuminance contribution of the lighting apparatus and controlling a luminance of each of the lighting apparatuses for luminance of the plurality of lighting apparatuses.