呼吸信号检测技术研究现状

Research progress of the measurement technology for respiration signal

呼吸检测方法主要分为接触式和非接触式2大类。接触式检测方法包括容积式呼吸检测法、速度式呼吸检测法、温度检测法、位移检测法、阻抗检测法、可穿戴技术和睡眠床垫等。这些方法属于无创检测且技术成熟，但都需要电极或传感器直接或间接接触人体，使人体受到一定的约束或限制，不适合用于严重烧伤患者和新生儿的呼吸监测。非接触式检测利用电磁波、光等媒介，使用无需与人体接触的电极或传感器，可在人体自然状态下对呼吸信号进行非接触检测，特别是基于红外线和生物雷达的非接触检测方法，已成为国内外研究的热点，可用于临床、社区医疗及家庭监护。

The measurement methods of respiration can be mainly divided into contact and non-contact. Contact detection methods include volumetric flowmeter, velocity flowmeter, temperature detection, displacement detection, impedance detection, wearable technology and sleep mattress, etc. Although these methods are non- invasive and mature, they all require electrodes or sensors to touch the body of human subjects, which limit the users＂ freedom and are not suitable for severely burned patients and newborns. In non-contact monitoring, the respiration is measured by using the media such as electromagnetic waves, optical media, etc, and without any electrodes or sensors to touch the body whiles the human subject keeping natural status. Non-contact detection method using infrared and biological radar has been a research focus both at home and abroad, which can be used for clinical, community and family care.