A low cost, wearable textile-based respiratory sensing system is proposed and experimentally demonstrated. A highly sensitive D-shaped plastic optical fiber (POF) sensor that responds to bending is integrated into an elastic band structure to form a respiratory sensing system. The curvature sensing experiments were conducted on the D-shaped POF sensor, which has a coefficient of determination (R 2 ) of 0.9977. The system can be used to monitor not only the respiratory rate (RR) of the human body under different movement states (resting, walking, and running) but also the RR of steady and unsteady respiratory signals due to different physiological states. In addition, using the proposed signal processing technique, the interference of motion noise can be removed and the influence of body movement on the sensor response can be eliminated. The advantages of the system are its low cost, compactness, and simplicity in design. Thus, the application of the proposed respiratory sensing system provides a simple and inexpensive optical solution for wearable health.

中文翻译：

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用于呼吸监测的基于 D 形塑料光纤的低成本可穿戴传感器


提出了一种低成本、可穿戴的基于纺织品的呼吸传感系统并进行了实验演示。将响应弯曲的高灵敏度 D 形塑料光纤 (POF) 传感器集成到松紧带结构中，形成呼吸传感系统。曲率传感实验在D型POF传感器上进行，其决定系数(R 2 )为0.9977。该系统不仅可以监测人体在不同运动状态（休息、行走、跑步）下的呼吸频率（RR），还可以监测不同生理状态下的稳态和非稳态呼吸信号的RR。此外，使用所提出的信号处理技术，可以消除运动噪声的干扰，并消除身体运动对传感器响应的影响。该系统的优点是成本低、结构紧凑、设计简单。因此，所提出的呼吸传感系统的应用为可穿戴健康提供了一种简单且廉价的光学解决方案。