Bio-signal Analysis via Chaotic Phase Space Difference
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Solution Overview
Problem
Existing bio-signal analysis methods are inefficient, consuming system resources and time, and fail to provide instantaneous analysis, particularly in differentiating normal and abnormal ECG signals due to limitations in threshold value selection and labor-intensive processing.
Innovation Solution
The method employs Chaotic Phase Space Difference (CPSD) analysis, which involves establishing a phase space matrix, calculating chaotic phase space differences, and automatically adjusting thresholds using mean and standard deviation to quickly differentiate normal and abnormal bio-signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional bio-signal analysis methods are used, then analysis can be performed, but system resources are consumed and time is lost without instantaneous analysis capability
Solution Approach 1:
The patent transforms the bio-signal analysis approach by changing from time-domain analysis to phase space reconstruction with chaotic difference calculation. This parameter transformation enables instantaneous analysis by computing the difference between phase space trajectories at different time points, providing both speed and resource efficiency
Solution Approach 2:
The patent replaces conventional labor-intensive manual analysis methods with an automated computational system that performs phase space reconstruction and chaotic difference calculation. This substitution eliminates human intervention while achieving instantaneous automated differentiation of normal and abnormal bio-signals
2Measurement precision
If conventional threshold selection methods are used, then normal and abnormal ECG signals can be differentiated, but the process is labor-intensive and not instantaneous
Solution Approach 1:
The patent implements a self-adjusting threshold mechanism where the system automatically determines optimal thresholds for differentiating normal and abnormal ECG signals based on the calculated chaotic phase space differences. This eliminates the need for manual threshold selection while maintaining high accuracy in signal differentiation
Solution Approach 2:
The patent employs feedback by using the calculated chaotic phase space differences to dynamically adjust the threshold values. The system continuously monitors the differences and adapts the thresholds accordingly, enabling instantaneous and accurate differentiation without manual intervention
3Reliability
If detailed bio-signal analysis is performed, then accurate diagnosis can be achieved, but resource consumption increases and instantaneous analysis is not possible
Solution Approach 1:
The patent extracts only the essential features needed for diagnosis by calculating the chaotic phase space difference between trajectories. Instead of performing comprehensive detailed analysis, the method focuses on the critical difference metric that directly indicates normal or abnormal signal conditions, reducing complexity while maintaining diagnostic reliability
Data Source
AI summary
The present invention relates to a method for analyzing bio-signal instantaneously by Chaotic Phase Space Difference (CPSD) operation and its measure analyze device. This method includes time-delay procedure and rebuilt phase space matrix to calculate complexity of phase space matrix and diagnose the bio-signal. This method can also be used as an analyze method in portable device or 24 h ECG recorder which is a fast and convenient measure analyze device.