Dynamic Lighting Control for Office Cognitive Function
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Solution Overview
Problem
Current indoor environmental control systems fail to effectively enhance occupant satisfaction and cognitive function by inadequately managing lighting parameters, particularly access to natural light, which impacts mood, productivity, and executive functions.
Innovation Solution
An environmental control system that includes a lighting subsystem with natural and artificial light adjustment mechanisms, sensors, and a control subsystem to dynamically adjust lighting conditions based on real-time data and occupant needs, utilizing electrochromic panes and window shades to optimize natural light access and cognitive function.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single indoor environment supports a variety of occupants and activities with fixed lighting, then device complexity is reduced, but occupant satisfaction and cognitive function deteriorate
Solution Approach 1:
The patent implements dynamic lighting control by adjusting lighting parameters (intensity, color temperature) in real-time based on natural light conditions, occupant location, and activity type. The system transitions from static to dynamic control, allowing the lighting environment to adapt continuously to changing conditions throughout the day.
Solution Approach 2:
The system incorporates sensors to detect natural light levels, occupant presence, and activity patterns, then uses this feedback to automatically adjust artificial lighting. This closed-loop control ensures the lighting environment responds to actual conditions rather than relying on predetermined settings.
2Illumination intensity
If natural light access is increased to improve cognitive function, then illuminance intensity improves, but harmful factors such as glare and eyestrain increase
Solution Approach 1:
The system dynamically adjusts lighting parameters including intensity and correlated color temperature (CCT) based on the time of day and natural light conditions. By changing these parameters appropriately, the system maximizes the benefits of natural light while avoiding harmful effects such as glare and eyestrain.
Solution Approach 2:
The system acts as an intermediary between natural light and the occupant, filtering and modulating natural light through electrochromic panes and window shades. This intermediary control allows the system to permit beneficial light while blocking harmful elements.
3Productivity
If lighting parameters are dynamically adjusted to improve cognitive function, then executive function performance improves, but device complexity and control system complexity increase
Solution Approach 1:
The control subsystem performs multiple functions: it monitors natural light levels, detects occupant presence and location, determines activity type, and adjusts lighting parameters accordingly. By consolidating these functions into a single intelligent control system, the patent manages complexity while achieving sophisticated lighting control.
Solution Approach 2:
The system automatically adjusts lighting based on sensor data without requiring manual intervention from occupants. The control subsystem independently processes information from multiple sensors and makes real-time lighting adjustments, making the system self-regulating and reducing operational complexity.
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
Improves occupant satisfaction and cognitive performance by maintaining optimal lighting conditions, reducing eyestrain, and enhancing executive functions such as working memory, inhibition, and task switching through dynamic adjustment of lighting parameters.
Implementation Method 1
utilizing electrochromic panes and window shades to optimize natural light access
Data Source
AI summary
In some embodiments, devices, systems, and methods herein may be used to operate an environmental control system in order to improve environmental satisfaction and/or cognitive function for one or more occupants or groups of occupants of an indoor environment. By some approaches, the devices, systems, and methods described herein may be employed by occupants, managers or owners of indoor environments to improve satisfaction with lighting and/or improve the performance of various executive functions for one or more occupants of an indoor environment. In some embodiments, the devices, systems, and methods described herein may be used to adjust various lighting parameters in an indoor environment, for example, lighting parameters that are indicative of access to natural light in the indoor environment.