Ultra-low power consumption electrodeless resistance volume measurement circuit and method suitable for heart rhythm detection

A technology with ultra-low power consumption and resistive volume, applied in diagnostic recording/measurement, medical science, sensors, etc., can solve problems that are not suitable for wearable devices, and achieve low power consumption, extreme power consumption, and low cost.

Active Publication Date: 2016-08-24
CHENGDU VCARE QINYUAN HEALTH TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In traditional measurement methods, an inert metal electrode is often required to touch the skin for measurement, which is not suitable for wearable devices

Method used

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  • Ultra-low power consumption electrodeless resistance volume measurement circuit and method suitable for heart rhythm detection
  • Ultra-low power consumption electrodeless resistance volume measurement circuit and method suitable for heart rhythm detection
  • Ultra-low power consumption electrodeless resistance volume measurement circuit and method suitable for heart rhythm detection

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Embodiment Construction

[0022] The technical scheme of the present invention is described in further detail below in conjunction with the accompanying drawings: as figure 1 As shown, the ultra-low power consumption electrodeless resistance volume measurement circuit suitable for heart rhythm detection includes pulse signal source P, integrating capacitor C1, sampling capacitor C2, operational amplifier OPA1, band-pass filter, analog switch SW1, analog switch SW2 , analog switch SW3, analog-to-digital converter, MCU and two skin contact terminals, one of which is connected to the pulse signal source P, and the other skin contact terminal is connected to one end of the analog switches SW1 and SW2 respectively. The other end is connected to the integrating capacitor C1, the output of the integrating capacitor C1 is connected to one end of the analog switch SW3, the other end of the analog switch SW3 is connected to the sampling capacitor C2, the output of the sampling capacitor C2 is connected to the non...

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Abstract

Ultra-low power consumption electrodeless resistor volume measurement circuit and method applicable in heart rate measurement monitoring. The circuit comprises pulse signal source P, integrating capacitor C1, sampling capacitor C2, operational amplifier OPA1, a bandpass filter, analog switch SW1, analog switch SW2, analog switch SW3, an analog-to-digital converter, an MCU, and two skin contact ends. Analog switch SW2 is connected to integrating capacitor C1. An output of integrating capacitor C1 is connected to sampling capacitor C2 via analog switch SW3. An output of sampling capacitor C2 is connected to an input of operational amplifier OPA1. An output of operational amplifier OPA1 is connected to the bandpass filter. An output of the bandpass filter is connected to the MCU. The need for inert noble metal electrodes is obviated, the need to apply in advance an electrically-conductive paste is obviated, measurement is not affected by sweating of the human body, at the same time, advantages of low costs and ultralow power consumption are provided. This is applicable in a high-performance intelligent wearable device.

Description

technical field [0001] The invention relates to an ultra-low power consumption electrodeless resistance volume measurement circuit and method suitable for heart rhythm detection. 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 for 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] Heart rhythm detection is a common requirement in wearable devices based on health detection. The resistance volume method to collect the congestion of the capillary network is a common signal acquisition method for heart rhythm detection. In traditional measurement methods, an inert metal electrode is o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B5/0245
CPCA61B5/0245
Inventor 崔予红
Owner CHENGDU VCARE QINYUAN HEALTH TECH
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