Mental stress analysis system based on heart sound HRV theory

Abstract

The invention discloses a mental stress analysis system based on the heart sound HRV theory. According to the mental stress analysis system, the heart rate variability is taken as the evaluation index of the stress level, based on the influences of the heart sound HRV analysis on the mental stress and the fatigue degree, the heart rate variability and the heart sound analysis are combined, and the mental stress analysis system capable of accurately measuring human mental stress is provided. For the system, a wireless heart sound collector is adopted, so that the long-time collection of heart sounds is realized, and the time for collecting the heart sounds needs to be maintained for 3-5 min; in order to rapidly and effectively extract the heart rate variability from heart sound signals, the adaptive algorithm for extracting HRV from the heart sounds is provided; through time-domain and frequency-domain analysis on HRV, 12 time-domain indexes and frequency-domain indexes are obtained, and the graphical representation is carried out on the 8 main characteristic indexes. Compared with the electrocardiographic mental stress analysis meter, the mental stress analysis system provided by the invention has the advantages that the use is convenient, the operation is simple, the functions are complete, especially, the cost is low, and the mental stress analysis system is suitable for being popularized and used in primary medical units, families, schools and individuals.

Description

technical field [0001] The invention belongs to the field of diagnosis of mental diseases, in particular to a mental stress analysis method based on heart sound HRV theory. Background technique [0002] In modern society, as the pace of work and life is getting faster and faster, the psychological pressure that modern people are facing is also increasing. According to the statistical report of the National Health and Family Planning Commission, as of the end of 2015, the number of people suffering from mental illness in China has surpassed that of cardiovascular disease, ranking first in the number of patients with diseases in my country. [0003] Psychological stress is the main cause of sub-health. Too much stress can damage your health. If the psychological pressure cannot be released in time, it will cause mental illness. Excessive stress will lead to sub-health of the body, and in severe cases it will lead to direct disease. Stress is the biggest health killer around...

AI Technical Summary

Problems solved by technology

[0004] However, more than 40% of the people in the survey did not take any measures

Images