Non-contact blood pressure detection model training method and blood pressure detection method and device

A non-contact, model-detection technology, applied in neural learning methods, biological neural network models, character and pattern recognition, etc., can solve problems such as being susceptible to environmental factors, inconvenient blood pressure detection by wearable devices, and poor accuracy , achieve stable and accurate perception and recovery, high-precision non-contact measurement, and improve the effect of extraction ability

Active Publication Date: 2022-07-29
BEIJING UNIV OF POSTS & TELECOMM
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Problems solved by technology

[0007] In view of this, the embodiment of the present invention provides a non-contact blood pressure detection model training method, blood pressure detection method and device, to eliminate or improve one or more defect

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  • Non-contact blood pressure detection model training method and blood pressure detection method and device
  • Non-contact blood pressure detection model training method and blood pressure detection method and device
  • Non-contact blood pressure detection model training method and blood pressure detection method and device

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[0054] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the embodiments and accompanying drawings. Here, the exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but not to limit the present invention.

[0055] Here, it should also be noted that, in order to avoid obscuring the present invention due to unnecessary details, only the structures and / or processing steps closely related to the solution according to the present invention are shown in the drawings, and the related structures and / or processing steps are omitted. Other details not relevant to the invention.

[0056] It should be emphasized that the term "comprising / comprising" when used herein refers to the presence of a feature, element, step or component, but does not exclude the presence or addition of one or more other feat...

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Abstract

The invention provides a non-contact blood pressure detection model training method and a blood pressure detection method and device. Periodic pulses are sensed in a non-contact mode based on wireless signals of a millimeter wave radar, a two-stage blood pressure detection model is adopted, and a pre-training process based on long sequence supervision information is introduced; parameters obtained after training of the first encoder are directly applied to the second encoder in a transfer learning mode, and the perception ability of the model to blood pressure related features is enhanced. A multi-level attention mechanism of a convolutional self-attention model is introduced to obtain global features and local context related features, and the blood pressure feature extraction capability can be remarkably improved. The method comprises the following steps: performing short-time Fourier transform on a reflected frequency-modulated continuous wave to perform segmentation processing on a reflected wave of each sub-region in a three-dimensional space, and sensing an artery pulse signal based on a maximum beam forming processing algorithm of an autocorrelation coefficient, so as to accurately sense the position of a wrist artery; and the pulse wave signal of the wrist artery can be sensed and recovered stably and accurately.

Description

technical field [0001] The invention relates to the technical field of vital sign detection, in particular to a non-contact blood pressure detection model training method, a blood pressure detection method and a device. Background technique [0002] Hypertension, a new type of disease, has become more and more common in people's lives with the improvement of living standards, and it is seriously harmful to health. Accurate blood pressure measurement is a prerequisite for prescribing the right medicine. For the elderly, the measurement method needs to be more reliable and convenient, and in order to realize the monitoring of vital signs, blood pressure must be continuously measured without interruption. [0003] The most accurate method of measuring blood pressure today is invasive arterial pressure measurement through a vascular cannula, in which a trocar is placed in an artery (usually radial, femoral, dorsal foot, or brachial) to measure directly Arterial pressure, but t...

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Application Information

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IPC IPC(8): G06K9/62G06N3/04G06N3/08
CPCG06N3/08G06N3/045G06F18/214
Inventor 周安福马华东梁雨萌黄渭石璞
Owner BEIJING UNIV OF POSTS & TELECOMM
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