Light Control Glass Transmittance Sensor Privacy
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Solution Overview
Problem
Existing building designs fail to effectively prevent the inside of a building from being seen from the outside, particularly in areas with high pedestrian traffic, where traditional window designs do not adequately address privacy and security concerns.
Innovation Solution
An information processing device and building system utilizing light control glass, controlled by sensors to adjust transmittance based on the presence of individuals outside openings, shifting between transparent, semi-transparent, and opaque states to maintain privacy and security.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional windows are used in buildings, then light intake and view are maintained, but privacy and security cannot be ensured when people are outside
Solution Approach 1:
The patent applies dynamics by making the window glass transmittance adjustable rather than fixed. The glass can dynamically change between transparent and opaque states based on sensor detection of people outside, allowing the building to adapt its privacy protection level according to real-time conditions while maintaining view and light intake when unnecessary obstruction would occur.
Solution Approach 2:
The patent changes the transmittance parameter of the glass material based on external conditions. By detecting the presence of people outside and adjusting the glass transmittance accordingly, the system modifies the optical properties of the window to balance privacy protection with view and light requirements.
2Reliability
If windows are made opaque to prevent viewing from outside, then privacy is improved, but light intake and view from inside are reduced
Solution Approach 1:
The system dynamically adjusts glass transmittance based on sensor input, making the window opaque only when people are detected outside. When no people are present, the glass remains transparent to maximize light intake and view, thus dynamically balancing privacy protection with illumination requirements.
Solution Approach 2:
The window transmittance is periodically adjusted based on detection cycles. The sensor continuously or periodically monitors for people outside, and the glass transmittance is switched between transparent and opaque states in response to these periodic detections, ensuring privacy only when necessary.
3Reliability
If fixed opaque glass is used, then privacy is maintained, but adaptability to different situations is lost
Solution Approach 1:
The patent implements a dynamic system that adapts window transmittance to different external conditions. Sensors detect people outside and trigger appropriate transmittance changes, allowing the building to respond adaptively to varying privacy needs based on real-time environmental conditions rather than using fixed opaque glass.
Solution Approach 2:
The system uses feedback from sensors that detect people outside the building. This feedback information is used to control the glass transmittance, creating a closed-loop system that automatically adapts privacy protection levels based on actual external conditions, enhancing versatility and responsiveness.
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 effectively prevents the inside of the building from being visible from the outside by controlling light transmittance in response to detected individuals, enhancing privacy and security while minimizing unnecessary obstruction of views and light intake.
Implementation Method 1
each of the one or more openings using light control glass
Data Source
AI summary
An information processing device includes a controller configured to acquire a detected value of a sensor that detects presence or absence of a person within a predetermined range outside one or more openings that is formed in a wall surface of a first building, each of the one or more openings using light control glass, the wall surface facing outside, and control transmittance of the light control glass based on the detected value of the sensor. A building includes one or more opening that is formed in at least a wall surface that faces outside, the opening using light control glass; a sensor that detects presence or absence of a person within a predetermined range outside the one or more openings; and a control device that controls transmittance of the light control glass based on a detected value of the sensor.