Sleep Environment Evaluation System with Dynamic Criteria Switching
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Solution Overview
Problem
Conventional techniques fail to effectively evaluate the suitability of a sleeping space as a sleep environment, particularly due to environmental changes caused by sunrise or sunset, which affects the quality of sleep.
Innovation Solution
A display program and method that assesses the suitability of a sleep environment by switching evaluation criteria based on sunrise or sunset times, considering factors like temperature, humidity, illuminance, and sound pressure, using sensors to collect data and adjust criteria accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional evaluation criteria are used for sleep environment assessment, then the evaluation process is simple, but the evaluation accuracy deteriorates due to environmental changes caused by sunrise or sunset
Solution Approach 1:
The patent applies dynamics by making the evaluation criteria changeable based on the time of day. The system dynamically switches between first evaluation criteria (when sunrise/sunset does not occur during sleep) and second evaluation criteria (when sunrise/sunset occurs during sleep). This allows the evaluation system to adapt to environmental changes while maintaining accuracy without requiring a completely complex new system.
Solution Approach 2:
The patent changes evaluation parameters based on temporal conditions. When sunrise or sunset occurs during the sleep period, the system switches to different evaluation criteria that account for the environmental changes caused by these natural phenomena. This parameter change approach maintains evaluation accuracy while avoiding the need for entirely new complex evaluation frameworks.
2Reliability
If fixed evaluation criteria are applied throughout the sleep period, then the evaluation process is straightforward, but the reliability of the assessment deteriorates when environmental conditions change
Solution Approach 1:
The patent applies preliminary action by determining in advance whether sunrise or sunset will occur during the sleep period. Based on this preliminary determination, the system pre-selects the appropriate evaluation criteria (first or second) before the actual sleep evaluation begins. This ensures reliable assessment under changing environmental conditions while keeping the operation simple through automated pre-determination.
3Measurement precision
If the evaluation system does not account for sunrise or sunset, then the system is simple to operate, but the evaluation results become inaccurate during environmental transitions
Solution Approach 1:
The patent makes the evaluation system dynamic by enabling it to adapt to different environmental conditions caused by sunrise or sunset. The system automatically determines whether these natural phenomena occur during sleep and switches between different evaluation criteria accordingly. This provides both accurate measurements and environmental adaptability without requiring complex manual adjustments.
Data Source
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AI summary
To evaluate the suitability of a space as a sleep environment, taking into account an environment change caused by a sunrise or a sunset during the sleep zone. A display device 101 acquires data about a space 120 detected by a sensor 102 installed in the space 120 in which a subject 110 sleeps. When evaluating and chronologically displaying the suitability of the space 120 as a sleep environment on the basis of data acquired from the sensor 102, the display device 101 switches the suitability evaluation criteria before or after a time relating to a sunrise or a sunset, in a case where the sleep zone of the subject 110 includes the time relating to a sunrise or a sunset.