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A Peak Extraction Method for Heart Rate Estimation

A peak extraction and heart rate technology, applied in the measurement of pulse rate/heart rate, application, medical science, etc.

Active Publication Date: 2022-03-08
杭州昊微科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional 24h electrocardiogram can obtain heart activity data over a period of time, but it is difficult to find a convenient and affordable instrument for long-term heart activity data monitoring and extraction

Method used

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  • A Peak Extraction Method for Heart Rate Estimation
  • A Peak Extraction Method for Heart Rate Estimation
  • A Peak Extraction Method for Heart Rate Estimation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] like Figure 1~3 As shown in the detection method, the subject is in the supine position, and the high-precision single-axis inclination sensor is installed on the bottom of the ordinary mattress close to the chest of the human body, so as to record the vibration of the heart and respiratory movement, and the BCG data is obtained by using the inclination sensor. Acquired by a 12-bit ADC with a sampling rate of 1kHz.

[0028] The signal acquired by the inclination sensor represents the beat-by-beat reaction force of the blood replacement in the subject on the inclination sensor, and it is proportional to the force along the horizontal direction generated by the physiological activities of the human body. The subject's beat-to-beat reaction force to the inclination sensor is converted into an AC voltage output with a DC offset through the acquisition system. Firstly, high-pass filtering is performed on the original signal collected by the inclination sensor with a cutoff...

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Abstract

The invention relates to a peak extraction method for heart rate estimation. During the heartbeat process, the body will produce tiny vibrations parallel to the axis of the spine. The present invention uses a high-precision angle sensor to measure the human heart pulsation to cause the subtle "pulsation" of the body. The change period of the electrical signal of the sensor after filtering is the heart rate. Install a high-precision single-axis inclination sensor on the bottom of an ordinary mattress close to the chest of the human body to record heart vibration and respiratory movement, and use the inclination sensor to obtain BCG data; use the maximum difference detection of local adjacent peaks and troughs, corresponding to Heartbeat detection of BCG signal peak mode of a single heartbeat, multiple judgments, and estimated heart rate. The invention is not easily affected by the subject's mood and emotion, and can test and record data without the subject's knowledge, and facilitates early detection of heart diseases through feature extraction and matching of a large number of heart rate data.

Description

technical field [0001] The invention relates to the technical field of heart rate detection, in particular to a peak value extraction method for heart rate estimation. Background technique [0002] At present, heart diseases are one of the common causes of human death. How to prevent and detect such diseases is the most concerned issue, and the key to detection and diagnosis is how to obtain long-term heart activity data. The traditional 24-hour electrocardiogram can obtain heart activity data over a period of time, but it is difficult to find a convenient and affordable instrument to monitor and extract heart activity data for a longer period of time. This paper uses embedded sensors to monitor the subject's heart rate in real time for a long time, providing a method for hospital clinical and home care to obtain heart rate data for a long time and to help online detection of heart diseases. Ballistocardiography is a method of recording the body vibration caused by heart ac...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B5/11A61B5/024
CPCA61B5/1102A61B5/1126A61B5/024A61B5/72
Inventor 任彧刘稳
Owner 杭州昊微科技有限公司