一种人体生命体征检测的新方法

本文首先给出人体生命体征的基本定义及其呼吸、心跳的标准参考值，然后讨论目前最常见的接触式检测人体生命体征方法的原理、优缺点，最后重点讨论一种检测人体生命体征新方法－－非接触检测的原理、理论、优缺点及实验室研究现状，并给出实验室中在自由空间和穿透模拟砖墙条件下检测到人体呼吸、心跳两路信号的时域、频域检测结果。

A New Method for Detecting the Signs of Human Body

First,the standard reference values for breath and heartbeat,and the basic definition of signs of human body are give in this paper.Second,the principle,advantages,and disadvantages of the currently widely|used method of contact|detection for detecting the signs of human body are discussed.Finally,a new non|contact method for detecting the signs of human body is discassed,including its principle,theoretic deduction,advantages,disadvantages,and current research in the lab.And what's more,the detected results of heartbeat and breath in time domain and frequency domain under conditions of free space and penetrating the analogue wall in the lab are provided.