Method, device, computer system and readable storage medium for pre-processing pulse waves based on similarity

A pulse wave and similarity 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: 2020-01-31
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 pre-processing pulse waves based on similarity
  • Method, device, computer system and readable storage medium for pre-processing pulse waves based on similarity
  • Method, device, computer system and readable storage medium for pre-processing pulse waves based on similarity

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Embodiment 1

[0053] See figure 1 This embodiment provides a method for preprocessing pulse waves based on similarity, which includes the following steps:

[0054] S1: Collect the pulse wave, and divide the pulse wave 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 a normal pulse wave is regular and uniform with equal intervals.

[0056] In this embodiment, the specific segmented periodic waveform can be achieved by the slope method or the threshold method. The slope method uses the position where the slope of the two adjacent falling edges (or rising edges) of the wave changes the most as the starting and ending points of the waveform. A complete waveform can be obtained. The starting point of the single-period waveform extracted by the slope method is from the point where the slope of the falling edge (rising edge) changes the most; in the threshold method, a starting threshold and...

Embodiment 2

[0106] See Image 6 , The device 5 for preprocessing pulse waves based on similarity in this embodiment includes

[0107] The collection module 51 is used to collect pulse waves;

[0108] The dividing module 52 is configured to divide the pulse wave into multiple periodic waveforms according to the rhythm;

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

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

[0111] The processing module 55 is 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 determine whether the DTW distance between each periodic waveform and the template wave meets the preset threshold range;

[0114] The exec...

Embodiment 3

[0118] In order to achieve the above objective, the present invention also provides a computer system, which includes a plurality of computer devices 7. The components of the similarity-based preprocessing pulse wave device 1 in the second embodiment can be dispersed in different computer devices. The device can be a smartphone, tablet, laptop, desktop computer, rack server, blade server, tower server, or rack server (including independent servers, or server clusters 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 be communicatively connected to each other through a system bus, such as Figure 8 Shown. It should be pointed out that Figure 8 Only a computer device with components is shown, but it should be understood that it is not required to implement all the components shown, and more or fewer components may be implemented instead.

[0119] ...

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Abstract

The invention discloses a method for pre-processing pulse waves based on similarity, and relates to the field of medical digital signal processing. The method comprises the following steps: collectingpulse waves, and dividing the pulse waves into a plurality of periodic waveforms according to rhythms; calculating the similarity between any two periodic waveforms to obtain similarity information corresponding to each periodic waveform; screening out a template wave according to the similarity information of each periodic waveform; and pre-processing the pulse waves based on the template wave,and discarding abnormal waveforms through similarity comparison and screening, thus achieving a purpose of preprocessing the pulse waves, improving the accuracy of subsequent feature extraction results on the waveforms and facilitating 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, a device, a computer system and a readable storage medium for preprocessing pulse waves based on similarity. Background technique [0002] Traditional pulse diagnosis is highly subjective, which is mainly based on the doctor’s personal experience in long-term diagnosis. There is a lack of uniformity in the identification of pulse conditions, and there is no precise standard. The existing pulse analysis instruments install supporting software on computer equipment. To deal with the problem of the collected pulse data. [0003] At present, most portable smart wearable devices are used in the market. In the actual collection of pulse data, human breathing and body movements will cause the baseline of the pulse condition to drift; pulse wave signals are weak physiological signals and are subject to electromagnetic interference and high-frequency noise from other de...

Claims

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Application Information

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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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