基于压电薄膜传感器的睡眠监测仪  

Sleep Monitor Based on Piezoelectric Thin-Film Sensor

作　　者：刘炳良 Liu Bing-liang(Chinese Academy of Sciences-ALLWIN Technology Co.,Ltd.,Shenyang 110000,Liaoning Province,China)

机构地区：[1]沈阳中科奥维科技股份有限公司,辽宁沈阳110000

出　　处：《科学与信息化》2023年第14期91-93,共3页Technology and Information

摘　　要：本设计提出了一款基于压电传感器的非接触睡眠监测仪。其实现方法为通过高灵敏度的压电薄膜传感器检测人体心脏冲击扫描(BCG)信号,再通过电荷放大器、低通滤波器、电压放大器将信号转换为ADC可识别的模拟信号。通过算法还原使用者的心率、呼吸率、体动、离床等生理信息,评估使用者的睡眠质量。配合产品自带App或合作机构信息平台,将检测结果呈现给使用者。由于其非接触检测的特点,该仪器不会对使用者的日常生活造成任何影响。This design proposes a non-contact sleep monitor based on piezoelectric sensors.The implementation method is to detect the ballistocardiography(BCG)signal of the human body through a high-sensitivity piezoelectric thin-film sensor,and then convert the signal into an analog signal recognizable by the ADC through a charge amplifier,a low-pass filter,and a voltage amplifier.Through the algorithm,it can restore physiological information of the users such as heart rate,breathing rate,body movement,and ambulation,and evaluate the user’s sleep quality.The test results will be presented to the users on the product’s own app or cooperative institutional information platform.Due to non-contact detection characteristics,this device will have no impact on user’s daily life.

关 键 词：BCG信号 压电传感器 非接触检测 睡眠监测 

分 类 号：TP2[自动化与计算机技术—检测技术与自动化装置]