Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Non-contact vital sign monitoring method, device and system based on millimeter-wave radar

A technology of millimeter-wave radar and vital signs, which is applied to radio wave measurement systems, measurement devices, and electromagnetic wave detection, can solve the problems of inconvenient use and virus transmission, and achieve the effect of avoiding cross-infection of infectious diseases

Active Publication Date: 2019-10-18
长沙莫之比智能科技有限公司
View PDF5 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a non-contact vital sign monitoring method, device and system based on millimeter-wave radar, which is used to overcome the defects of inconvenient use and virus transmission caused by contact in the prior art, so as to improve the convenience of use and avoid Spread of the virus through contact

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Non-contact vital sign monitoring method, device and system based on millimeter-wave radar
  • Non-contact vital sign monitoring method, device and system based on millimeter-wave radar

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] As shown in the accompanying drawings, an embodiment of the present invention provides a non-contact vital sign monitoring method based on millimeter-wave radar, including the following steps:

[0031] S1, extracting the echo signal reflected after the transmitted signal encounters the target to be measured;

[0032] The transmission signal here is sent by the millimeter wave radar. The target to be measured is, for example, a human body. Within the detectable range of the radar, the echo signal is the signal reflected after the transmission signal encounters the human body (obstacle); it is received and buffered by the receiving antenna of the radar. data, here the DSP can fetch from the cache database.

[0033] S2, mixing the transmit signal and the echo signal to generate a mixed frequency signal;

[0034] A mixed frequency signal is generated by a mixer.

[0035] S3, performing AD sampling on the frequency mixing signal to generate a time-domain sampling signal; ...

Embodiment 2

[0074] Based on the first embodiment above, the embodiment of the present invention also provides a non-contact vital sign monitoring device based on millimeter-wave radar, including a mixer, a processor and a memory, and the memory stores the non-contact vital sign monitoring device based on millimeter-wave radar. The vital signs monitoring program executes the steps of the method in the first embodiment when the processor runs the program.

[0075] The present invention is non-contact, does not need to be touched or worn by the user, has wider practicability, and can avoid the problem of disease infection in contact monitoring; it is also convenient for people with limited mobility to monitor signs; real-time monitoring, the present invention belongs to non-contact The product can be installed above the bed or behind the long-distance driver's seat, real-time vital sign information of the target to prevent accidents;

Embodiment 3

[0077] Based on the first and second embodiments above, the present invention also provides a non-contact vital sign monitoring system based on millimeter-wave radar, including:

[0078] The millimeter-wave radio frequency front-end is used to send out the transmit signal and receive the echo signal reflected after the transmit signal encounters the target to be measured;

[0079] The monitoring device is electrically connected to the millimeter wave detector, and is the non-contact vital sign monitoring device based on the millimeter wave radar described in the second embodiment;

[0080] Output interface: used to output the calculation results of the non-contact vital sign monitoring device based on millimeter wave radar;

[0081] The power supply is connected with the millimeter-wave radio frequency front-end, the monitoring device and the output interface, and is used to provide power.

[0082] The output interface is a serial interface.

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

No PUM Login to View More

Abstract

The invention discloses a non-contact vital sign monitoring method, device and system based on a millimeter-wave radar. The method comprises the steps that an echo signal based on a transmitted signal, which is reflected after encountering a to-be-detected target, is extracted; the transmitted signal and the echo signal are mixed to generate a mixed signal; AD sampling is performed on the mixed signal to generate a time-domain sampled signal; distance transformation is performed on the time-domain sampled signal to acquire a one-dimensional distance image of the radar; a maximum peak value inthe one-dimensional distance image is acquired to obtain a target distance unit, and a phase on the target distance unit is calculated; the steps of distance transformation and phase calculation are repeated according to radar frame refreshing frequency, a phase set of phases on the same distance unit through respective calculation is obtained, and phase difference processing is performed to obtain a phase difference set; and the phase difference set is filtered to obtain vital sign signals of the to-be-detected target, and the vital sign signals are transformed to obtain vital signs. Throughthe non-contact vital sign monitoring method, device and system, the problems of inconvenience and infection brought by contact detection in the prior art are solved, non-contact measurement is realized, practicability and convenience are high, and contact infection is avoided.

Description

technical field [0001] The invention relates to the technical field of vital sign monitoring, in particular to a non-contact vital sign monitoring method, device and system based on millimeter wave radar. Background technique [0002] With the changes in the lifestyle of human society and the development of science and technology, and people's increasing attention to health issues, various electronic health products have gradually entered people's field of vision. [0003] Traditional vital sign detection products include watches, wristbands, oximeters, large medical equipment, etc. These electronic health products are all contact-type, requiring the user to wear or touch them to detect the user's vital sign information. Contact testing equipment is inconvenient for disabled patients, severely burned patients, or patients with limited mobility; at the same time, there are many concerns for patients with highly infectious diseases. Contents of the invention [0004] The 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
no application Login to View More
IPC IPC(8): G01S13/88G01V3/12
CPCG01S13/88G01V3/12
Inventor 陈浩文刘军辉郭利庚孙宇
Owner 长沙莫之比智能科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com