Lighting Control System Using Sub-Area Influence Ranking
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Solution Overview
Problem
In indoor spaces with multiple lighting sources, achieving uniform illuminance can lead to excessive or inadequate lighting due to overlapping light sources, resulting in energy waste.
Innovation Solution
A method and system that classify a predetermined area into sub-areas, calculate the detailed influence of each lighting on these sub-areas, determine the overall influence of each lighting, rank them based on their impact, and control the lighting accordingly to optimize illuminance, using a processor-based system that adjusts lighting levels based on ascending or descending influence rankings and natural light scores.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If multiple lightings are arranged to create uniform lighting environment, then illuminance uniformity is improved, but energy consumption increases due to overlapping lights
Solution Approach 1:
The area is divided into multiple sub-areas, and each lighting's influence is calculated separately for each sub-area. This segmentation allows precise control of individual lighting devices based on their specific impact zones, enabling uniform illuminance distribution while avoiding unnecessary energy consumption from overlapping lights.
Solution Approach 2:
Each lighting device is controlled based on its local influence characteristics. The system calculates the specific influence of each lighting on different sub-areas and adjusts lighting levels locally according to these characteristics, rather than applying uniform control to all lightings. This achieves energy efficiency while maintaining overall illuminance uniformity.
2Illumination intensity
If comprehensive illuminance adjustment is performed to achieve uniform lighting, then illuminance uniformity is improved, but control complexity increases
Solution Approach 1:
The control system segments the overall lighting control into individual lighting device controls. By calculating and managing each lighting's influence separately on different sub-areas, the system simplifies the control logic compared to comprehensive illuminance adjustment, while still achieving uniform illuminance distribution.
Solution Approach 2:
The system uses calculated influence data as feedback to adjust lighting control decisions. By incorporating the pre-calculated influence of each lighting on each sub-area, the control algorithm can make informed adjustments with simpler logic, reducing overall control complexity while maintaining illuminance uniformity.
Data Source
AI summary
A method of controlling lighting based on influence of the lighting may include: classifying a predetermined area including a plurality of lightings into a plurality of sub-areas; calculating a detailed influence of each of the plurality of lightings on each of the plurality of sub-areas; determining an influence of each of the plurality of lightings on the predetermined area by using a sum of the calculated, detailed influences on the plurality of respective sub-areas; determining ranking of influence of the plurality of lightings, based on each of the determined influences of the plurality of respective lightings; and controlling the plurality of lightings based on the determined ranking of influence of the plurality of lightings.