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    • 摘要: 针对目前颈部脉搏监测装置不便携带、信号处理复杂等缺点,设计一款光纤布拉格光栅(fiber Bragg grating, FBG)颈部脉搏监测装置。使用该装置监测志愿者1、2在静坐和仰卧时3种状态(静息、运动和剧烈运动)下的颈部脉搏各10 s。利用傅里叶变换对其进行处理,得到其频率与手环、血氧仪监测的频率误差都小于10%,对不同状态的各自周期进行皮尔逊相关性分析,得到其相关性大于0.9。利用随机森林对其进行预测分析,得到其预测分析效果较好。分析结果表明,该颈部脉搏监测装置能够有效地监测人体颈部脉搏。

       

      Abstract: In response to the current limitations of neck pulse monitoring devices, such as being inconvenient to carry and having complex signal processing, a fiber Bragg grating (FBG) based neck pulse monitoring device was designed. The device monitored two volunteers in three states (resting, exercise, and vigorous exercise) while sitting and lying down for 10 s each. Fourier transform was applied to process the data, and the frequency error between the neck pulse device, the wristband, and the pulse oximeter was found to be less than 10%. Pearson correlation analysis was conducted on the periods of different states, with the correlation coefficient exceeding 0.9. Random forest was used for predictive analysis, and the results showed good prediction performance. The analysis indicates that the neck pulse monitoring device is capable of effectively monitoring the pulse in the neck region of the human body.