Health bracelet

Abstract

The invention discloses a health bracelet. The bracelet comprises a blood oxygen signal conditioning module and an electrocardio detection module, wherein the blood oxygen signal conditioning module is used for conducting preamplification and signal separation on blood oxygen data, performing phase sensitive detection on an electrical signal of reduced hemoglobin and low-pass filtering on an electrical signal of oxyhemoglobin respectively, extracting useful information of the above two signals completely, inputting the two processed electrical signals into a controller module, combining the data of a three-axis acceleration detecting module to calculate the oxygen saturation, and avoiding the emergence of artifact; the accuracy of the oxygen saturation data is improved through the disposition of the blood oxygen signal conditioning module; the electrocardio detection module is used for conducting one-stage amplification, trapped wave processing, low-pass filtering and two-stage amplification on detected electrocardio data, an electrocardio signal is amplified, the bioelectrical signal frequency is filtered out so as to remove unexpected interference based on the characteristic frequency of a power frequency signal and an myoelectric signal, artifact is removed, and the effectiveness of the electrocardio signal is improved, so is the accuracy of the eletrocardio data. The improvement of the accuracy of the blood oxygen and electrocardio basic data is beneficial to improving the detection accuracy of the health bracelet.

Description

technical field [0001] The invention relates to a wearable health physiological signal detection system, in particular to a health bracelet for monitoring blood oxygen and electrocardiogram. Background technique [0002] Blood oxygen refers to the oxygen in the blood. After oxygen is inhaled from the lungs, the oxygen enters the blood from the capillaries, and is transported by the blood to various organs or cells in the body. Low blood oxygen saturation will cause insufficient oxygen supply to the body, and excessive High blood oxygen saturation will lead to the aging of cells in the body. In the normal range, the higher the blood oxygen saturation, the better the metabolism of the person. ECG refers to the successive excitation of the heart from the pacemaker, atrium, and ventricle in each cardiac cycle, accompanied by changes in bioelectricity; critically ill patients, patients with arrhythmia, and patients with coronary heart disease need long-term real-time ECG monitori...

AI Technical Summary

Problems solved by technology

[0004] The invention provides a health bracelet, which solves the problem of low detection accuracy existing in wearable devices for detecting physiological characteristic signals

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