Biosignal Measuring Apparatus with Adaptive Temperature and Grip Control
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Solution Overview
Problem
Existing biosignal measuring devices face challenges in maintaining accurate measurements of skin conductance, as they struggle to adjust for variations in temperature and grip, leading to suboptimal detection of emotional responses associated with sympathetic nervous system activity.
Innovation Solution
A biosignal measuring apparatus that adjusts its settings by controlling temperature and grip based on measured skin conductance levels, generating heat to increase conductance when low and cooling when high, and tightening or releasing grip to maintain the signal within a reference range, thereby enhancing the detection of emotional responses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the biosignal measuring apparatus uses fixed settings for measurement, then the device complexity is reduced, but the measurement precision deteriorates due to temperature and grip variations
Solution Approach 1:
The system continuously monitors the biosignal and automatically adjusts measurement settings based on the measured values. When the biosignal falls outside the reference range, the system modifies grip force or temperature control parameters to bring the signal back into the optimal measurement range, creating a closed-loop feedback system that maintains measurement precision without requiring complex manual intervention
Solution Approach 2:
The measurement apparatus transitions from static fixed settings to dynamic adaptive settings. The system automatically adjusts grip force and temperature control parameters in real-time based on biosignal measurements, allowing the device to adapt to varying physiological conditions while maintaining measurement accuracy without proportionally increasing device complexity
2Measurement precision
If the apparatus adjusts temperature and grip settings dynamically, then the measurement precision improves, but the device complexity increases
Solution Approach 1:
The control unit serves multiple functions: it processes biosignal measurements, determines whether adjustments are needed, controls grip force actuators, and manages temperature control. By consolidating these functions into a single multi-functional controller, the system achieves dynamic adaptation without proportionally increasing overall device complexity
Solution Approach 2:
The system performs self-adjustment by automatically detecting when biosignal measurements fall outside the reference range and autonomously modifying grip force or temperature parameters without external intervention. This self-service capability maintains high measurement precision while minimizing the complexity of external control systems
3Reliability
If the biosignal is outside the reference range, the measurement reliability is poor, but adjusting settings adds operational complexity
Solution Approach 1:
The measurement apparatus automatically detects when biosignal values fall outside the reference range and autonomously adjusts grip force or temperature parameters to restore optimal measurement conditions. This self-service mechanism maintains high measurement reliability without requiring user intervention, preserving ease of operation while ensuring reliable measurements
Solution Approach 2:
The system implements automatic feedback control by continuously monitoring biosignal values and adjusting measurement parameters when deviations from the reference range are detected. This closed-loop approach ensures measurement reliability is maintained automatically without adding operational complexity for the user
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
This approach allows for more accurate and sensitive detection of biosignals by ensuring the skin conductance remains within a measurable range, improving the device's ability to observe responses from the sympathetic nervous system.
Implementation Method 1
performing at least one of an operation of generating heat in a measurement area in which the biosignal is measured
Implementation Method 2
performing at least one of an operation of cooling the measurement area in which the biosignal is measured
Data Source
AI summary
A biosignal measuring method and apparatus are provided. The biosignal measuring method includes verifying whether a measured biosignal is in a range, and controlling an operation of the biosignal measuring apparatus when the measured biosignal deviates from the range based on a result of the verifying.