Non-contact multi-mode physiological and psychological state real-time monitoring and early warning system

Abstract

This invention relates to the field of physiological and psychological state monitoring technology, specifically disclosing a non-contact, multi-modal real-time monitoring and early warning system for physiological and psychological states. A stimulus input module selects and executes a stimulus paradigm, dividing the testing process into a resting period, a stimulus period, and a recovery period. A video acquisition module adaptively adjusts distributed cameras based on the subject's head posture to acquire facial video data. A feature extraction module plots blood flow pulsation waveforms based on the green channel pixel values ​​of the facial skin area and generates a heart rate interval sequence. An index calculation module calculates the heart rate change rate, blood flow recovery speed, autonomic nervous system balance index, and blood flow distribution variation coefficient accordingly. A health assessment module evaluates the safety of vital signs and emotional stability, comprehensively judging whether an early warning is triggered based on individual baselines, group baselines, and trend changes, and providing feedback on the early warning level and abnormality type. This invention achieves non-contact combined physical and mental monitoring, significantly improving monitoring accuracy and early warning reliability.

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