Heart rate variability analyzing method based on amplitude spectrum and instruments

A heart rate variability and amplitude spectrum technology, used in sensors, medical science, diagnostic recording/measurement, etc., can solve the problems of limited application, large data dispersion, skewed distribution, etc., to achieve the effect of real-time detection

Active Publication Date: 2014-11-26
申岱
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AI Technical Summary

Problems solved by technology

However, the current conventional frequency domain analysis method with power spectral density as a parameter has the following problems in estimating the characteristics of HRV signals: the data are highly discrete and have a skewed distribution, and the analysis result

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  • Heart rate variability analyzing method based on amplitude spectrum and instruments

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Embodiment Construction

[0019] see figure 1 :

[0020] Monitors of autonomic function, including sequentially connected

[0021] Pre-amplification modules for signal amplification,

[0022] Filter module for removing clutter,

[0023] A / D conversion module for analog-to-digital conversion,

[0024] A positioning R peak module for determining the position of the R peak in a digital signal,

[0025] An artifact elimination module for removing false peaks in the signal after determining the R peak,

[0026] a forming RR sequence module for forming an RR sequence,

[0027] an interpolation module for making the RR sequence into a uniform sequence and a display module for displaying values,

[0028] The preamplifier module is connected to the electrocardiographic electrode sheet through wires, and the electrode sheet is placed on the surface of human skin for collecting human body signals;

[0029] It is characterized in that: an HRV frequency domain analysis module based on the amplitude spectrum ...

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Abstract

The invention discloses a heart rate variability analyzing method based on an amplitude spectrum and instruments. The method comprises the following steps that a human body autonomic nervous function monitor is installed, after amplification, filtering and analog-digital conversion are carried out on electrocardio signals collected by an electrocardio electrode slice, an RR interval time sequence is built, the QRS waveform of the electrocardio signals has the features of large amplitude, short time limit, steep waveform and easy recognition, the key for obtaining HRV signals is that the R wave of an electrocardiogram is accurately calibrated, and according to the morphological characteristic of an R wave picture, the wave crest of the R wave is the maximum positive value in a single signal period; the instruments included in the method comprise a preamplifier module used for amplifying the electrocardio signals, a filter module, an A/D conversion module, an R crest positioning module, a signal pseudo crest pseudo differential eliminating module, an RR sequence forming module, an interpolation module and a display module which are sequentially connected, the preamplifier module is connected with the electrocardio electrode slice through a guide line, and the electrode slice is arranged on the surface of the human body skin and used for collecting the electrocardio signals of the human body.

Description

technical field [0001] The present invention relates to a heart rate variability analysis method and an autonomic nervous activity monitoring instrument based on the method, in particular to a frequency-domain analysis method of heart rate variability based on amplitude spectrum, and according to this method to realize the detection of human autonomic nervous activity Continuous, real-time, non-invasive monitoring. Background technique [0002] The main function of the autonomic nervous system is to maintain the function of human organs and the stability of the internal environment, so that the functional activities of organs and tissues are in the most suitable state. Because the organs controlled by it involve a wide range of functions, the evaluation of autonomic nerve function is of great significance for understanding the function of human organs. The evaluation of autonomic nervous system function by heart rate variability (heart rate variability, HRV) analysis has be...

Claims

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Application Information

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IPC IPC(8): A61B5/0452
Inventor 申岱贾晓宁
Owner 申岱
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