Adaptive Multimedia Blackboard Angle Control for Classroom Glare Reduction
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Solution Overview
Problem
Multimedia blackboards suffer from glare issues due to diffuse and specular reflections, making it difficult for students to view the display content from various angles, especially in large classrooms, which can lead to a degraded teaching experience.
Innovation Solution
A method and device that utilize multi-view cameras to create a three-dimensional model of the classroom, detect face areas, and adjust the multimedia blackboard's angle to ensure optimal viewing positions for students, reducing glare and improving the teaching experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the multimedia blackboard is positioned at a fixed angle suitable for students in the middle of the classroom, then students in the middle can view the display content comfortably, but students at other positions experience glare and cannot see the content clearly
Solution Approach 1:
The patent applies the dynamics principle by making the blackboard's inclination angle adjustable rather than fixed. The system uses cameras to detect student positions and automatically adjusts the blackboard angle to different positions, transforming a static blackboard into a dynamic one that adapts to different viewing scenarios. This resolves the contradiction by allowing the blackboard to be optimized for different student positions rather than being fixed for one position.
Solution Approach 2:
The patent applies parameter changes by modifying the inclination angle parameter of the blackboard based on detected student positions. The system changes the angular parameter dynamically according to the distribution of students in the classroom, allowing optimal viewing angles for different positions. This resolves the contradiction between fixed-position comfort and multi-position adaptability.
2Illumination intensity
If the multimedia blackboard surface material causes specular reflection, then the blackboard can display content, but viewers at certain angles experience dazzling glare and cannot see the content clearly
Solution Approach 1:
The patent applies parameter changes by adjusting the inclination angle of the blackboard to change the reflection angle of specular reflection. By modifying the angular parameter, the system redirects glare away from student viewing positions while maintaining display brightness. This resolves the contradiction between maintaining display illumination and eliminating harmful glare effects.
3Quantity of substance
If the classroom is large to accommodate hundreds of students, then more students can attend, but students at various positions cannot view the content comfortably due to fixed blackboard positioning
Solution Approach 1:
The patent applies dynamics by implementing an automatic adjustment system that makes the blackboard angle adaptive rather than fixed. The system detects student distribution through cameras and dynamically adjusts the blackboard position to accommodate different classroom sizes and student arrangements. This resolves the contradiction between large classroom capacity and viewing quality across all positions.
Solution Approach 2:
The patent applies self-service by implementing an automatic system that detects student positions and autonomously adjusts the blackboard angle without manual intervention. The system serves itself by using camera data to automatically optimize viewing conditions for the entire classroom, resolving the contradiction between large capacity and universal viewing comfort.
Data Source
AI summary
The present disclosure provides a method and a device for adaptively controlling a multimedia blackboard, a medium, and an electronic apparatus. In the present disclosure, a three-dimensional model of a target space is established, and a distribution area of the students in a classroom may be obtained by an adaptive algorithm based on the three-dimensional model and an angle of the multimedia blackboard may be automatically controlled to ensure that the students can watch the multimedia blackboard better and reduce the fatigue feeling about the class, which helps in improving an efficiency of having the class.