Stress Analysis Apparatus for Biological Data Cause Association
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Solution Overview
Problem
Existing methods for stress analysis can quantify stress levels but fail to identify the underlying causes, making it difficult to effectively reduce stress as the cause specification is manual and time-consuming.
Innovation Solution
A stress analysis apparatus and method that includes a stress level estimation unit, a stress state specification unit, and a stress cause association unit to automatically estimate stress levels, specify time periods of stress states, and associate these periods with relevant information, enabling the identification of both the state and cause of stress from biological data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual specification of stress causes is performed, then stress level can be quantified, but time consumption and operational complexity increase significantly
Solution Approach 1:
The system pre-collects and organizes user information (schedule, location, weather, etc.) before stress analysis is needed. When stress is detected, the information is already prepared and can be immediately associated with the stress period, eliminating manual collection time
Solution Approach 2:
The system automatically performs the entire workflow of stress detection, time period specification, and cause association without human intervention. The apparatus autonomously collects biological information, estimates stress levels, identifies stress time periods, and links them with user information, making the system serve itself
2Measurement precision
If manual specification of stress causes is performed, then stress level can be quantified, but operational complexity increases
Solution Approach 1:
The system merges multiple functions (stress detection, time period identification, cause association) into a single integrated apparatus. By combining these previously separate manual tasks into one automated system, operational complexity is reduced while maintaining measurement precision
Solution Approach 2:
The apparatus autonomously performs all analysis steps without requiring user intervention. The system self-manages the complex processes of collecting biological information, estimating stress levels, specifying time periods, and associating causes, thereby simplifying operation for the user
3Device complexity
If only stress level quantification is performed without automatic cause association, then measurement process remains simple, but ability to identify stress causes is insufficient
Solution Approach 1:
User information such as schedules, locations, and weather data is collected and stored in advance before stress events occur. This pre-prepared information is ready to be associated with detected stress periods, ensuring no stress cause information is lost while keeping the additional complexity minimal
Solution Approach 2:
The system establishes a feedback loop where stress detection triggers automatic retrieval and association of relevant user information. This feedback mechanism ensures that stress cause information is systematically captured and linked to corresponding time periods without significantly increasing overall system complexity
Data Source
AI summary
A stress analysis apparatus includes a stress level estimation unit for estimating a stress level of a user from biological information of the user, a stress state specification unit for specifying a time period during which the user is in a preset stress state, based on a time-series change of the estimated stress level, and a stress cause association unit for associating the specified time period with information regarding the user.