Blood pressure prediction method, system, device and storage medium
A technology of blood pressure and equipment, which is applied in vascular assessment, diagnostic recording/measurement, medical science, etc. It can solve the problems that the accuracy of blood pressure prediction needs to be improved, and achieve good noise reduction effect, easy extraction, and improved accuracy.
Active Publication Date: 2022-04-22
GUANGDONG UNIV OF TECH
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[0004] The main purpose of the present invention is to provide a blood pressure prediction method, system, equipment and storage medium, aiming to solve the technical problem that the accuracy of blood pressure prediction needs to be improved in the prior art
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[0053] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0054] refer to figure 1 , figure 1 It is a schematic structural diagram of a blood pressure prediction device in the hardware operating environment involved in the solution of the embodiment of the present invention.
[0055] Such as figure 1 As shown, the blood pressure prediction device may include: a processor 1001 , such as a CPU, a communication bus 1002 , a user interface 1003 , a network interface 1004 , and a memory 1005 . Wherein, the communication bus 1002 is used to realize connection and communication between these components. The user interface 1003 may include a display screen and an input unit such as a keyboard, and the optional user interface 1003 may also include a standard wired interface and a wireless interface. Optionally, the network interface 1004 may include a standard wired interface and...
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The invention discloses a blood pressure prediction method, system, equipment and storage medium. The present invention obtains the photoplethysmography signal and the heart rate value; performs discrete cosine transform on the photoplethysmography signal to obtain a frequency domain signal; performs low-pass filtering on the frequency domain signal to obtain a filtered signal; Filtering the AC coefficient of the filtered signal to obtain a noise-reduced signal; extracting the eigenvalue of the noise-reduced signal; inputting the eigenvalue and the heart rate value into a preset model to obtain a blood pressure prediction value. Among them, by performing discrete cosine transform and coefficient screening on the signal, a better noise reduction effect can be obtained, so that the noise reduction signal has more valuable feature information, which facilitates the extraction of subsequent feature values, thereby improving the accuracy of blood pressure prediction. accuracy.
Description
technical field [0001] The present invention relates to the technical field of human body signal processing, in particular to a blood pressure prediction method, system, device and storage medium. Background technique [0002] Hypertension is a leading cause of death worldwide, and blood pressure is an important indicator for personal health monitoring, especially for patients who need to control and prevent hypertension and cardiovascular diseases. With the increasing use of wearable devices, the built-in body sensor of wearable devices can obtain photoplethysmographic (PPG) signals, and then perform signal processing, feature extraction and machine learning on the PPG signals to obtain blood pressure. . [0003] At present, the scheme of blood pressure prediction through PPG signal is relatively mature, and most of the improvement methods focus on the feature extraction and machine learning of PPG signal, and the results are improved by selecting different features or reg...
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IPC IPC(8): A61B5/021A61B5/00
CPCA61B5/02108A61B5/7235A61B5/7253A61B5/7275A61B5/02416
Inventor 陈丹妮凌永权刘庆韦怡婷张曦文黄淑云
Owner GUANGDONG UNIV OF TECH