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Sign data processing method and system based on frequency-modulated continuous wave radar

A frequency-modulated continuous wave and physical sign data technology, applied in the field of signal processing, to achieve efficient detection, accurate and clear physical sign data

Active Publication Date: 2021-04-09
FOSHAN UNIVERSITY
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Problems solved by technology

[0003] The present invention provides a method and system for processing sign data based on frequency-modulated continuous wave radar, to solve one or more technical problems existing in the prior art, and at least provide a beneficial choice or create conditions

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  • Sign data processing method and system based on frequency-modulated continuous wave radar

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[0034] The concept, specific structure and technical effects of the present disclosure will be clearly and completely described below in conjunction with the embodiments and drawings, so as to fully understand the purpose, scheme and effect of the present disclosure. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0035] The principle of radar measurement of human body sign data (respiration rate, heart rate, respiration rate variability, and heart rate variability) is explained below:

[0036] Respiration and heartbeat movement will cause small displacement of the chest wall, among which, the displacement caused by breathing is 1mm to 12mm, and the displacement caused by heartbeat is 0.01mm to 0.5mm. The displacement caused by breathing and the displacement caused by heartbeat are both quasi-periodic mechanical movements, the frequency of breathing is usually...

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Abstract

The invention relates to the technical field of signal processing, in particular to a sign data processing method and system based on a frequency-modulated continuous wave radar. The method comprises the following steps: firstly transmitting an electromagnetic wave signal to a to-be-detected human body through the frequency-modulated continuous wave radar, so as to detect a chest wall mechanical motion signal of the to-be-detected human body, and receiving a returned echo signal; sampling the echo signal, processing the sampled echo signal by using a multiple signal classification algorithm to obtain a high-resolution distance image, and extracting a respiration signal and a heartbeat signal according to the high-resolution distance image; and finally determining sign data of the to-be-detected human body according to the respiration signal and the heartbeat signal, wherein the sign data comprise respiration rate, real-time respiration rate variability, heart rate and real-time heart rate variability. The method and system can perform more convenient and efficient detection of vital signs of a to-be-detected human body, realize high-precision real-time extraction of respiration rate, heart rate, respiration rate variability, and heart rate variability, and provide accurate and clear physical sign data.

Description

technical field [0001] The present invention relates to the technical field of signal processing, in particular to a method and system for processing sign data based on frequency-modulated continuous wave radar. Background technique [0002] Traditionally, multi-function monitors are used to monitor vital signs such as breathing and heartbeat, but they need to take off their clothes and tie electrode patches or sensors to the body when using them, which cannot meet the needs of large-flow personnel screening in public places. In addition, the physical sign data detected by traditional monitoring equipment is not accurate and clear enough to achieve real-time high-precision detection. Contents of the invention [0003] The present invention provides a method and system for processing sign data based on frequency-modulated continuous wave radar to solve one or more technical problems existing in the prior art, and at least provide a beneficial option or create conditions. ...

Claims

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Application Information

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IPC IPC(8): A61B5/00A61B5/0205G01S7/41G01S13/88
CPCA61B5/0205A61B5/0816A61B5/08A61B5/024A61B5/02405A61B5/7235A61B5/7203G01S13/88G01S7/41
Inventor 郑春弟解春维陈荟慧王爱国谢经顺
Owner FOSHAN UNIVERSITY
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