Biological radar, system, method and application for non-contact detection of life information

Abstract

The invention belongs to the technical field of measuring devices for sensing and collecting information such as breathing, heartbeat and body movement of human body in space, and discloses a biological radar, a system and a method and application for non-contact detection of life information, and a miniature integrated biological radar in a sensor, which is used for sensing and collecting breathing and heartbeat information of human body in space in a non-contact manner and converting the sensed information into corresponding electric signals; a life information extraction and breathing and heartbeat signal separation module is used for extracting mixed life information from mixed signals output by the miniature integrated biological radar, separating breathing and heartbeat signals fromthe extracted mixed life information and outputting the breathing and heartbeat signals; and a power supply module is used for providing power supply with appropriate performance. According to the invention, human breathing, heartbeat and body movement information in space are detected in a non-contact mode, and a life information remote real-time monitoring / detecting and early warning system canbe formed by combining the existing Internet of Things technology and equipment.

Description

technical field [0001] The invention belongs to the technical field of measuring devices for sensing and collecting information such as breathing, heartbeat and body movements of a human body in a space, and in particular relates to a biological radar, system, method and application for non-contact detection of life information. Background technique [0002] At present, the current clinical monitoring of breathing and heartbeat information all uses contact sensors such as electrodes and wire conduction methods. During the test, the subject must be restrained and restrained. In family care, there is currently no technical means to solve real-time care and early warning; with the aging of the society and the increase of the elderly living alone, real-time care and early warning of the physical and life status of the elderly living alone and the elderly living alone is a blank; In the security detection and prevention of key places or key parts, the existing infrared and radar...

AI Technical Summary

Problems solved by technology

The inventor of the present invention has carried out in-depth and meticulous research on the existing bio-radar technology through long-term research, using various testing methods and testing techniques, and found that the UWB technology has the following deficiencies: 1). These papers mainly focus on how to extract breathing and heartbeat signals with software methods, but do not conduct research and analysis from the system hardware architecture

2) UWB technology has strong penetrating power, but the interference in the radar echo pulse signal is too strong. When extracting life information, it is impossible to distinguish weak breathing and heartbeat information, resulting in a high false alarm rate

3) At present, from the papers and professional journals published by academic circles at home and abroad, as well as the introduction of other existing products (radar life information detection technology, the same below), it can be seen that there is a widespread and general view: "UWB technology's Strong anti-interference ability", this point of view and understanding are inconsistent with the research and detection results of the present invention

[0009] (1) The weak information carried in the radar echo pulse of the existing UWB technology is susceptible to interference, and the performance and reliability of the extracted life information are reduced

[0010] (2) The signal phase error after the demodulation of the existing UWB technology is large, resulting in a decline in the detection and resolution of weak respiratory signals and heartbeat information

[0011] (3) The equipment formed by the existing technology is large in size and expensive, and has not reached the level of economical and practical use

[0012] (4) Prior art non-miniaturized, modularized sensors

[0013] (5) The existing security infrared and radar technology is limited to the detection of moving objects, non-life information detection technology

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