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Method, device, computer system and readable storage medium for preprocessing pulse wave based on similarity

A similarity, pulse wave technology, applied in the field of medical digital signal processing, can solve the problems of waveform shape change, unfavorable waveform processing application, etc., to achieve the effect of improving accuracy, reducing complexity, and improving processing efficiency

Active Publication Date: 2022-02-08
PING AN TECH (SHENZHEN) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method, device, computer system and readable storage medium for screening abnormal pulse waves based on similarity, which are used to solve the problem of pulse wave waveforms caused by external environmental interference during the actual collection of pulse data in the prior art. The shape of the waveform changes, which is not conducive to the subsequent processing and application of the waveform

Method used

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  • Method, device, computer system and readable storage medium for preprocessing pulse wave based on similarity
  • Method, device, computer system and readable storage medium for preprocessing pulse wave based on similarity
  • Method, device, computer system and readable storage medium for preprocessing pulse wave based on similarity

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Embodiment 1

[0053] see figure 1 , the present embodiment provides a method for preprocessing pulse waves based on similarity, comprising the following steps:

[0054]S1: collecting pulse waves, and dividing the pulse waves into multiple periodic waveforms according to the rhythm;

[0055] It should be noted that the rhythm refers to a complete waveform cycle. Generally, the rhythm of normal pulse waves is regular and uniform, with equal intervals.

[0056] In this embodiment, the specific segmented periodic waveform can be realized by the slope method or the threshold value method. The slope method is to use the position where the slope of the two adjacent falling edges (or rising edges) of the wave changes the most as the starting point and the ending point of the waveform, so A complete waveform can be obtained. The starting point of the single-cycle waveform extracted by the slope method starts from the point where the slope of the falling edge (rising edge) changes the most; the thre...

Embodiment 2

[0106] see Image 6 , a device 5 for preprocessing pulse waves based on similarity in this embodiment, including

[0107] Acquisition module 51, is used for collecting pulse wave;

[0108] A segmentation module 52, configured to segment the pulse wave into multiple periodic waveforms according to the rhythm;

[0109] A calculation module 53, configured to calculate the similarity between any two of the periodic waveforms, and obtain similarity information corresponding to each of the periodic waveforms;

[0110] A screening module 54, configured to screen template waves according to the similarity information of each of the periodic waveforms;

[0111] A processing module 55, configured to preprocess the pulse wave based on the template wave.

[0112] see Figure 7 , the processing module 55 also includes:

[0113] The comparison unit 551 is used to judge whether the DTW distance between each periodic waveform and the template wave meets the preset threshold range;

[01...

Embodiment 3

[0118] In order to achieve the above object, the present invention also provides a computer system, which includes a plurality of computer devices 7, the components of the pulse wave device 1 based on similarity preprocessing in Embodiment 2 can be dispersed in different computer devices, and the computer The device can be a smartphone, a tablet computer, a laptop computer, a desktop computer, a rack server, a blade server, a tower server, or a cabinet server (including a stand-alone server, or a server cluster composed of multiple servers) that executes the program. Wait. The computer equipment in this embodiment at least includes but is not limited to: a memory 71 and a processor 72 that can communicate with each other through a system bus, such as Figure 8 shown. It should be pointed out that, Figure 8 Only a computer device is shown with the components - but it should be understood that implementing all of the illustrated components is not a requirement and that more o...

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Abstract

The invention discloses a method for preprocessing pulse waves based on similarity, relating to the field of medical digital signal processing, comprising the following steps: collecting pulse waves, and dividing the pulse waves into multiple periodic waveforms according to the rhythm; calculating any two The similarity between the periodic waveforms is obtained by obtaining the similarity information corresponding to each of the periodic waveforms; filtering out template waves according to the similarity information of each of the periodic waveforms; preprocessing the pulse wave based on the template waves Through similarity comparison, abnormal waveforms are screened and discarded, so as to achieve the purpose of pulse wave preprocessing, improve the accuracy of subsequent waveform feature extraction results, and facilitate the application of subsequent waveform processing.

Description

technical field [0001] The invention relates to the field of medical digital signal processing, in particular to a method, device, computer system and readable storage medium for preprocessing pulse waves based on similarity. Background technique [0002] Traditional pulse diagnosis has a strong subjectivity, which is mainly based on the long-term practical experience accumulated by the doctor's personal diagnosis. The identification of pulse conditions lacks uniformity and precise standards. To deal with the collected pulse data. [0003] At present, most of the portable smart wearable devices are used in the market. During the actual collection of pulse data, human respiration and body movement will cause the baseline of the pulse to drift; the pulse wave signal is a weak physiological signal, which is subject to electromagnetic interference from other devices and high-frequency noise. Superimposed on the pulse wave is like a burr, the fluctuation of the power supply volt...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B5/02A61B5/00
CPCA61B5/02A61B5/72A61B5/4854
Inventor 康延妮李响谢国彤贾晓雨
Owner PING AN TECH (SHENZHEN) CO LTD
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