High-reliability and low-calculation rhythm recognition circuit and high-reliability and low-calculation rhythm recognition method suitable for wearable device

Abstract

The invention discloses a high-reliability and low-calculation rhythm recognition circuit and a high-reliability and low-calculation rhythm recognition method suitable for a wearable device. The high-reliability and low-calculation rhythm recognition circuit comprises at least one software filter, a normally-opened software phase locked loop, at least one standby software phase locked loop and a control logic unit K, wherein all standby software phase locked loops are respectively connected with the normally-opened software phase locked loop in parallel; signal output ends of all the software filters are respectively connected with the normally-opened software phase locked loop and the standby software phase locked loops; the normally-opened software phase locked loop and the standby software phase locked loops respectively comprise rhythm signal output ends and frequency overflow flag output ends; the rhythm signal output ends and the frequency overflow flag output ends are respectively connected with the control logic unit K. The circuit disclosed by the invention has the advantages of low requirement on signal-noise ratio of signals, good robustness and wide recognition range; the method has the advantages of low requirement on a processor, low power consumption, high reliability and low calculation, and is suitable for the wearable device.

Description

technical field [0001] The invention relates to a heart rhythm recognition circuit and method suitable for wearable devices with high reliability and low calculation load. Background technique [0002] With the progress of society and the improvement of living standards, people's demand for health is getting higher and higher. The traditional health management model aimed at seeing a doctor can no longer meet people's further needs for health. People hope to get a beautiful environment. , Physical and mental comfort, green and harmless, comprehensive and accurate, economical and convenient, and a new detection method that can prevent problems before they happen. [0003] In wearable health monitoring devices, it is generally necessary to calculate heart rhythm from electrocardiogram (ECG) signals, photoplethysmography (PPG) signals, and resistive volumetric signals. In new everyday wearable devices, because Due to human movement and environmental interference, the original ...

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Problems solved by technology

[0002] With the progress of society and the improvement of living standards, people's demand for health is getting higher and higher. The traditional health management model aimed at seeing a doctor can no longer meet people's further needs for health. People hope to get a beautiful environment. , Physical and mental comfort, green and harmless, comprehensive and accurate, economical and convenient, and a new detection method that can prevent problems before they happen

[0003] In wearable health monitoring devices, it is generally necessary to calculate heart rhythm from electrocardiogram (ECG) signals, photoplethysmography (PPG) signals, and resistive volumetric signals. In new everyday wearable devices, because Due to human movement and environmental interference, the original signal is often mixed with a large number of interference signals, and the method often requires high calculation and high power consumption

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