Dynamic Shading Screen Translucency Control
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Solution Overview
Problem
Existing shading systems that control opacity in building façades cannot effectively display images while providing sufficient protection against sunlight, as they either allow too much light to pass through, causing glare, or become too dark and unreadable due to inadequate consideration of light intensity.
Innovation Solution
A dynamic shading system with a control system that adjusts translucency values for each area based on both light intensity and image data, ensuring optimal light transmission and image clarity by varying translucency values to match changing light conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If translucency values are determined based on image data only without considering light intensity, then image display capability is maintained, but sunlight protection is insufficient causing glare and discomfort
Solution Approach 1:
The control system continuously monitors light intensity values from sensors and uses this feedback to dynamically adjust translucency values. The control system determines translucency values based on both image data and real-time light intensity measurements, creating a closed-loop control mechanism that adapts to changing environmental conditions to prevent glare while maintaining image display
Solution Approach 2:
The system changes the translucency parameter of screen areas based on both image requirements and light intensity conditions. By adjusting the translucency values dynamically according to ambient light levels, the system optimizes the balance between light transmission for image display and light blocking for glare prevention
2Illumination intensity
If translucency values are set high for bright image regions, then image visibility is improved, but light transmission increases causing excessive glare under high ambient light
Solution Approach 1:
The control system applies different translucency values to different screen areas based on local image requirements and local light intensity conditions. Each screen area's translucency is independently adjusted according to its specific function in the image and the ambient light conditions, allowing bright image regions to maintain visibility while preventing excessive light transmission that would cause glare
3Object-affected harmful factors
If the screen blocks more light to prevent glare, then sunlight protection is improved, but image visibility and clarity deteriorate
Solution Approach 1:
The system dynamically adjusts the translucency parameter based on ambient light intensity measurements. When ambient light is high, translucency values are reduced to block sunlight and prevent glare. When ambient light is low, translucency values are increased to maintain image visibility. This dynamic parameter adjustment resolves the contradiction between sunlight protection and image visibility
Solution Approach 2:
The control system makes the translucency of screen areas dynamic rather than static. Translucency values are continuously adjusted in response to changing ambient light conditions and image data, allowing the system to adapt to different environmental scenarios and maintain optimal balance between glare prevention and image display
Data Source
AI summary
A dynamic shading system is disclosed that comprises a screen. The screen comprises a plurality of areas and each area has an adjustable translucency for presenting an image on one side of the screen. The shading system further comprises a control system that is configured to determine a set of translucency values that comprises a translucency value for each area for adjusting the translucency. The control system is configured to determine the set of translucency values based on at least one light intensity value indicative of a light intensity incident on another side of the screen and based on image data representative of the image to be formed by the plurality of areas. This disclosure further relates to a control system, a method for determining control information and to a computer program product for carrying out said method.