Vital sign detection and identity recognition system and method based on millimeter wave radar

Abstract

The invention relates to a vital sign detection and identity recognition system based on millimeter-wave radar, which comprises a millimeter-wave radar subsystem, a radar data preprocessing subsystem, a vital sign characteristic database subsystem, an identity recognition subsystem and an intelligent interaction interface subsystem which are in communication connection with one another, the millimeter wave radar subsystem is placed beside an object to be measured, comprises a transmitting antenna and a receiving antenna, and is used for obtaining original radar data; the radar data preprocessing subsystem is used for decomposing a respiration signal and a heartbeat signal in the original radar data and extracting vital sign characteristic information; the vital sign feature database subsystem is used for storing identity information and corresponding vital sign feature information; the identity recognition subsystem learns vital sign feature information, classifies the vital sign feature information and determines corresponding identity information; the intelligent interaction interface subsystem comprises a display screen for displaying vital sign information and identity recognition results, and compared with the prior art, the system has the advantages of being high in practicability, safe in privacy protection and the like.

Description

technical field [0001] The invention relates to the technical field of vital sign detection and identification, in particular to a vital sign detection and identification system and method based on millimeter wave radar. Background technique [0002] With the development and improvement of the level of science and technology, the demand for technology in various fields such as smart life, smart home, and smart medical care is becoming increasingly strong. The current vital signs such as breathing and heartbeat detection technology mainly rely on traditional contact sensors, such as patent CN201811523766. Uncomfortable, unable to achieve continuous monitoring throughout the day. [0003] Non-contact vital sign detection equipment can not only monitor people's health status in real time, but also can be applied in the field of security monitoring to realize personnel detection and identification. At present, the more common monitoring technology in the field of security moni...

AI Technical Summary

Problems solved by technology

However, face recognition is easily affected by light and smoke, and both face recognition and fingerprint recognition have hidden dangers of privacy leakage, resulting in information leakage and information security issues.

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