Environment control system, environment control method, and environment control program
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Solution Overview
Problem
Conventional environment control systems react to changes in physiological information only after stress has occurred, resulting in delayed control of indoor environments and increased stress for individuals.
Innovation Solution
An environment control system that includes a first control unit, a measurement unit, an environment model, and a second control unit. The environment model uses input data on behavior patterns in response to stress and environmental values to output target values for suppressing stress. The second control unit adjusts the first control unit to align environmental measurements with these target values, thereby preemptively managing stress.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional control systems wait for physiological information to change before controlling the air conditioner, then the control logic is simple, but the stress suppression effectiveness deteriorates due to delayed response
Solution Approach 1:
The system performs preliminary action by detecting behavioral patterns that precede physiological changes. The environment model predicts stress occurrence before it happens by analyzing current behavior and environmental data, allowing the air conditioner to adjust environmental conditions in advance to prevent stress from occurring in the first place
Solution Approach 2:
The system applies beforehand cushioning by preparing compensatory environmental adjustments in advance. When the environment model predicts potential stress based on current behavior patterns and environmental conditions, the air conditioner proactively modifies the environment to cushion against the anticipated stress, rather than reacting after stress occurs
2Device complexity
If the air conditioner is controlled after physiological information changes, then the system complexity is low, but the individual feels more stress
Solution Approach 1:
The system introduces an intermediary layer between simple environmental sensing and air conditioner control. The environment model acts as a mediator that processes behavioral patterns and environmental data to generate predictive control commands, enabling stress prevention without requiring complex physiological sensors while still achieving proactive stress suppression
Solution Approach 2:
The system substitutes the mechanical/physiological monitoring approach with a behavioral pattern recognition approach. Instead of relying on physiological sensors to detect stress, the system uses cameras and microphones to detect behavioral patterns, replacing the need for direct physiological measurement while achieving better predictive capability
Data Source
AI summary
The environment control system includes a first control unit that controls an environment in a room where an individual stays, a measurement unit that measures a value indicating the environment in the room, an environment model that is constructed using, as input data, a correspondence relationship between a behavior pattern in response to a stress of the individual and the value indicating the environment and outputs a target value for suppressing the stress of the individual when a time-series change in the value indicating the environment is input, and a second control unit that controls the first control unit so that the value indicating the environment measured by the measurement unit approaches the target value acquired by inputting the time-series change in the value indicating the environment into the environment model.