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Method for detecting heart rate and heartbeat interval without constraints in real time

A heartbeat interval, unconstrained technology, used in pulse rate/heart rate measurement, diagnostic recording/measurement, medical science, etc., can solve problems such as influence calculation, template calculation error, etc., to reduce frequency double and half frequency, anti-interference ability Strong, high-accuracy effects

Active Publication Date: 2018-12-14
HEBEI UNIV OF TECH
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

The template matching method requires accurate templates, which can be obtained through training and learning methods, but in unsupervised situations, breathing, noise, and body tremors may cause template calculation errors, thereby affecting subsequent calculations

Method used

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  • Method for detecting heart rate and heartbeat interval without constraints in real time
  • Method for detecting heart rate and heartbeat interval without constraints in real time
  • Method for detecting heart rate and heartbeat interval without constraints in real time

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Experimental program
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Embodiment

[0067] The real-time unfettered detection method of heart rate and heartbeat interval in this embodiment comprises the following steps:

[0068] The first step, status judgment:

[0069] The industrial computer collects the acceleration sensor data in real time at a sampling rate of 1K per second through the data acquisition equipment, calculates the standard deviation of the real-time data per second, and sets the threshold range to [3.5e -4 ,8e -4 ], if the standard deviation of the collected data is not within the threshold range, heart rate calculation will not be performed. At this time, there may be no one on the bed or there is someone on the bed but the person is not in a static state at this time, which is recorded as state 1; if the collected If the standard deviation is within the threshold range, it means that the person is lying on the bed and is in a static state, which is recorded as state 2; the data of the 10-second data segment is continuously collected, and...

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Abstract

The invention relates to a method for detecting a heart rate and a heartbeat interval without constraints in real time. The method utilizes an acceleration sensor installed on a bed side in a range ofa lower limb of a human body to measure bed body vibration caused by heartbeats, acquires acceleration sensor data by means of data acquisition equipment, and transmits the acceleration sensor data to an upper computer for processing. The method can automatically judge whether the person is in bed, detects the heart rate in real time when the person remains stationary, and is not affected by thesleeping posture. The method does not require training and learning, has the advantages of small calculation amount, good real-time performance and high precision, can obtain the heart rate and can obtain each heartbeat interval.

Description

technical field [0001] The invention relates to the technical field of smart home, in particular to a method for real-time and unfettered detection of heart rate and heartbeat interval. Background technique [0002] Heart rate is one of the important physiological signals, and the interval between heartbeats often reflects the morbid signs of the human body. Real-time and accurate heartbeat intervals are the basis for analyzing heart rate variability and one of the criteria used to detect sleep quality, so daily monitoring of heart rate is of great significance. Daily monitoring can measure heart rate through heart shock, which is the vibration generated by the beating of the heart and the blood discharge of the myocardium. The vibration can be measured by a sensor placed on a carrier (bed, chair, etc.) that is in contact with people, so as to indirectly obtain the heart rate. . [0003] The current heart rate extraction algorithm based on heart impact is more accurate tem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/024
CPCA61B5/024A61B5/02444
Inventor 刘今越毕圆浩
Owner HEBEI UNIV OF TECH
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