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US 2021/0228091 A1Published application
Bio information measurement device and bio information measurement method
AssigneeSeung Wan KANG
InventorsSeung Wan KANG, Dae Keung KIM
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Abstract
A bio information measurement device and a bio information measurement method are provided. The bio information measurement device includes: a heart information acquisition unit for acquiring heart information; a brainwave information acquisition unit for acquiring brainwave information; a control unit for acquiring heart-brain synchronization information on the basis of the heart information and the brainwave information; and a display unit for displaying the heart-brain synchronization information. According to the present invention, it is possible to provide a health index reflecting the influence of both the automatic nervous system and the central nervous system.
Claims6
A bio information measurement device comprising:
- a heart information acquisition unit configured to acquire heart information and including a photoplethysmograph (PPG) sensor or an electrocardiograph (ECG) sensor;
- a brainwave information acquisition unit configured to acquire brainwave information and including a brainwave measurer;
- and
- a controller configured to acquire heart-brain synchronization information on a basis of the heart information and the brainwave information,
- wherein the controller is further configured to acquire a heart coherence on a basis of the heart information, wherein the heart coherence is an index indicative of a rate of change of a pulse waveform acquired by the heart information acquisition unit and has a value from 0 to 1,
- wherein the controller is further configured to acquire on a basis of the brainwave information:
- i) a brainwave coherence among a plurality of brainwave waveforms, wherein a brainwave coherence is an index indicative of a degree of coincidence of frequency spectrums of the plurality of brainwave waveforms and has a value from 0 to 1,
- ii) a phase relation among a plurality of brainwave waveforms,
- iii) a degree of symmetry among a plurality of brainwave waveform, or
- iv) a power of brainwave, on a basis of the brainwave information,
- wherein the power of brainwave is an amplitude of a particular frequency of a brainwave that is measured in real-time,
- wherein the controller is further configured to acquire the heart-brain synchronization information on a basis of a correlation between the heart coherence and the brainwave coherence, a correlation between the heart coherence and the phase relation, or a correlation between the heart coherence and the degree of symmetry, or a correlation between the heart coherence and the power,
- wherein the controller is further configured to perform a linear regression analysis to determine a degree of convergence by using both the heart coherence and the brainwave coherence and by using following relational equation 1:
- y=a*x+b
- where
- y represents the brainwave coherence,
- x represents the heart coherence, and
- a and b are rational numbers which satisfy the relational equation 1, and
- wherein the controller is further configured to
- determine the degree of convergence as a degree of proximity,
- determine a healthy condition when the degree of proximity is greater than or equal to a preset reference value, and
- determine an unhealth condition when the degree of proximity is less than the preset reference value.
19 more elements
A bio information measurement method comprising:
- acquiring heart information;
- acquiring brainwave information;
- acquiring a heart coherence on a basis of the heart information, wherein the heart coherence is an index indicative of a rate of change of a pulse waveform acquired by the heart information acquisition unit and has a value from 0 to 1;
- acquiring, on a basis of the brainwave information, i) a brainwave coherence among a plurality of brainwave waveforms, wherein a brainwave coherence is an index indicative of a degree of coincidence of frequency spectrums of the plurality of brainwave waveforms and has a value from 0 to 1, ii) a phase relation among a plurality of brainwave waveforms, iii) a degree of symmetry among a plurality of brainwave waveform, or iv) a power of brainwave, on a basis of the brainwave information,
- wherein the power of brainwave is an amplitude of a particular frequency of a brainwave that is measured in real-time;
- acquiring heart-brain synchronization information on a basis of the heart information and the brainwave information, wherein the heart-brain synchronization information is acquired on a basis of a correlation between the heart coherence and the brainwave coherence, a correlation between the heart coherence and the phase relation, a correlation between the heart coherence and the degree of symmetry, or a correlation between the heart coherence and the power;
- performing a linear regression analysis to determine a degree of convergence by using both the heart coherence and the brainwave coherence and by using following relational equation 1:
- y=a*x+b [relational equation 1]
- where
- y represents the brainwave coherence,
- x represents the heart coherence, and
- a and b are rational numbers which satisfy the relational equation 11
- determining the degree of convergence as a degree of proximity;
- determining a healthy condition when the degree of proximity is greater than or equal to a preset reference value;
- determining an unhealth condition when the degree of proximity is less than the preset reference value.
- wherein each step of the method is executed by a bio information measurement device including a processor and a memory.
13 more elements
Dependencies are inferred from the claim text.