Signal quality index evaluation circuit
A signal quality and evaluation circuit technology, applied in the fields of blood vessel evaluation, health index calculation, medical data mining, etc., can solve problems such as interpreting signals, and achieve the effect of eliminating noise.
Pending Publication Date: 2022-05-20
INVENTEC PUDONG TECH CORPOARTION +1
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, the signals measured by these two methods are usually unsatisfactory due to effects such as baseline wander (Baseline Wander), power line interference (PLI) and myoelectric noise. Or it is still difficult for researchers to judge whether the processed signal is accurate only by visual inspection
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0035] The following detailed features and advantages of the present invention are described in detail in the embodiment, the content of which is sufficient to enable those skilled in the art to understand the technical content of the present invention and implement it accordingly, and according to the contents disclosed in this specification, claims and drawings of the specification, those skilled in the art can easily understand the relevant objects and advantages of the present invention. The following embodiments further elaborate on the views of the present invention, but do not limit the scope of the present invention to any point of view.
[0036] It should be noted first that the evaluation circuit of the signal quality index shown in the present invention may sense the environment to generate a reference signal, so when sensing physiological signals such as ECG signals, volume change delineations, etc., the physiological signals may be processed according to the reference s...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses an evaluation circuit of a signal quality index. The evaluation circuit comprises an environment sensor, a zero phase filter and an evaluation circuit. The environment sensor is used for sensing a surrounding state to generate a correction reference signal. The zero-phase filter is connected to the environmental sensor in a signal transmissible manner, the zero-phase filter is used for generating a clean physiological signal according to the physiological signal and the correction reference signal, the clean physiological signal comprises a plurality of periodic signals, and each periodic signal has a physiological value. The evaluation circuit is connected to the zero phase filter in a signal transmissible manner, calculates a standard value domain according to one or more of the physiological values of the periodic signals of the clean physiological signal, and judges the difference between the physiological value corresponding to each periodic signal and the standard value domain. The evaluation circuit calculates and outputs a signal quality index according to the difference quantities.
Description
Technical field [0001] The present invention concerns an evaluation circuit of a signal quality index, in particular an evaluation circuit of a signal quality index may exclude noise in a physiological signal and evaluate the quality of the physiological signal. Background [0002] Cardiovascular disease has been shown to be highly correlated with heart rate and blood pressure. Blood pressure refers to the pressure generated by blood in the circulatory system, because blood pressure is closely related to the force of the heartbeat (Force), frequency, and the elasticity and diameter of the arterial wall, so blood pressure is often measured for diagnostic and therapeutic purposes. If blood pressure is not well controlled, it is more likely to cause heart disease, stroke, heart failure and other problems. Therefore, it is more important to improve the accuracy of blood pressure measurement through technology in the field of artificial intelligence. [0003] The technique of blood pr...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/0205A61B5/318A61B5/00
CPCA61B5/0205A61B5/021A61B5/02108A61B5/7203A61B5/725A61B5/721A61B5/7235G16H50/30G16H50/70G16H40/63A61B5/346A61B2562/0219A61B5/7225A61B2560/0247A61B5/02416A61B5/7221A61B5/7246
Inventor 吴信福陈佩君陈儁翰傅大卫
Owner INVENTEC PUDONG TECH CORPOARTION