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Non-contact breathing real-time monitoring method

A real-time monitoring, non-contact technology, applied in the evaluation of respiratory organs, diagnostic recording/measurement, medical science, etc., can solve the problems of low anti-interference, high false alarm rate, short lifespan, etc., to achieve easy promotion and convenient use. Effect

Active Publication Date: 2020-08-25
ZHEJIANG UNIV +1
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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 solve the defects of short life, low anti-interference and high false alarm rate in the prior art, and provide a new real-time breathing monitoring method for non-contact equipment

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] A kind of non-contact breathing real-time monitoring method among the present invention, comprises the following steps:

[0059] S1. Use the millimeter wave radar to collect electromagnetic echo data in real time, and extract the time distribution and spatial distribution of objects in the surrounding environment according to the echo;

[0060] S2. Judging the range and distribution of the human body based on the time difference data, and extracting key peak points;

[0061] S3. Then calculate the respiratory motion waveform and respiratory frequency according to the phase of the key peak point, and calculate the abnormality index.

[0062] In step S1, the echo is transformed into complex original data after AD conversion, and the continuous echo data of each frame is transformed into a three-dimensional complex array s(x, y, k r ,t), where x is the horizontal index of the antenna array, y is the vertical index of the antenna array, k r is the index of different dista...

Embodiment 2

[0093] A hardware system that adopts the non-contact breathing real-time monitoring method described in the above-mentioned embodiment 1, the hardware system 1 includes a millimeter wave radar, a wifi module and a data storage module, and the millimeter wave radar and the wifi module communicate with the data storage module through the SPI interface respectively Connect to communicate, and the millimeter wave radar and wifi module communicate through the serial port.

[0094]The wifi module connects to the Internet to communicate with the server, and the server sends an alarm prompt to the alarm prompt mobile phone bound to the system after receiving the alarm signal sent by the wifi module.

[0095] like image 3 As shown, the hardware system 1 is installed at the end of the bed through the adjustable bracket 2 and is higher than the bed surface. The part where the adjustable bracket is connected to the end of the bed is provided with a card slot on the adjustable bracket. Th...

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Abstract

The invention discloses a non-contact breathing real-time monitoring method. The method comprises the following steps: S1, acquiring electromagnetic echo data in real time by utilizing a millimeter-wave radar, and extracting time distribution and space distribution of objects in a surrounding environment according to echoes; S2, judging the range and distribution of the human body according to thetime difference data, and extracting a key peak point; and S3, calculating a breathing movement waveform and breathing frequency according to the phase of the key peak point, and calculating an abnormal index. The non-contact breathing real-time monitoring method disclosed by the invention can measure and output the breathing physiological behaviors of a monitored object in real time and can be applied to detecting the breathing frequency of a user and monitoring and alarming abnormal breathing. The method is easy to install and convenient to use, can output the breathing waveform of the userin real time with high precision and analyze breathing abnormality, and has high reliability and good popularization prospects.

Description

technical field [0001] The invention belongs to the field of non-contact sensors, in particular to a non-contact breathing real-time monitoring method. Background technique [0002] In elderly care, one of the most important links is the care of the life safety of the elderly. How to conduct comprehensive real-time monitoring of the elderly's action safety and sleep safety is the key to the security of the elderly. If there is no advanced, systematic, and comprehensive measurement method to monitor the vital signs and abnormal events of the elderly, the golden hour may be missed. At present, the monitoring equipment for the life safety of the elderly is relatively imperfect, resulting in high labor costs and labor pressure in the nursing work, which greatly increases the difficulty of nursing care and the limitations of effective nursing care. [0003] In the existing monitoring methods, bioelectric sensors, flow sensors, pressure sensors, motion sensors, cameras, etc. are...

Claims

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Application Information

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IPC IPC(8): A61B5/05A61B5/08A61B5/11A61B5/00G16H50/30
CPCA61B5/0507A61B5/08A61B5/0816A61B5/1115A61B5/725A61B5/7275A61B5/746G16H50/30
Inventor 刘涛翟潜韩梅梅
Owner ZHEJIANG UNIV
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