随着科学技术的迅速发展，人们生活质量的提高，人们对自身健康越来越关注；同时，随着生活节奏的加快与工作压力的增加，睡眠成了困扰许多人的问题。根据调查研究显示，睡眠不足将会增加患各种疾病的风险。多导睡眠图仪是传统的监测睡眠的仪器，但是由于对病人检测的生理信号比较多，因此对病人的身体和心理造成了一定的负担，它在一定程度上会影响病人的睡眠质量。本文介绍了一种基于2.45 GHz微波技术的非接触式睡眠监测系统iSleep，该系统通过自行设计的射频运动传感器采集人体的生理信号，然后通过相关算法从采集的射频信号分离出体动、呼吸和心跳信号，提取相关特征参数实现睡眠分期，从而实现了智能睡眠的管理以及低生理和心理负荷下的睡眠监测。%With the improvement of people’s living standard and life quality, people have paid more attention to their health. Furthermore, the sleep problems caused by the accelerated rhythm of life have troubled many people. It is reported that the lack of sleep will increase the risk of a variety of diseases. Polysomnography is a traditional monitoring instrument for sleep. However, as the more physiological signal for people should be detected, it may be a burden to the physical and mental health of people. To some extent, it will affect the sleep quality of people. This paper describes a non-contact sleep monitoring system, iSleep, which is based on 2.45 GHz microwave technology. The proposed system collects physiological signals using RF motion sensor. By using the correlation algorithm, the motion, respiration and heartbeat signals are separated from the collected RF signals. The related parameters are extracted to realize the sleep staging, the intelligent management on sleep and the sleep monitoring with a low physiological load.
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