Abstract

A smart optic fiber mattress for animal sleep continuous monitoring based on a multi-modal interferometer is presented. The sensor is fabricated by splicing two single mode fibers (SMFs) and a multimode fiber (MMF) with a grid structure. Due to the network structure of the sensor, it has wider contact surface for monitoring vital signs and reduces the detection difficulty caused by the change of measured object position. The sensing unit can be placed under the dog mattress. Experimental results show that it can continuously monitor the sleeping activities and respiration of the dog. The detected information includes activity rhythm, sleeping state and sleeping respiratory rates (SRR). This technique avoids some potential problems such as injuring caused by the sensor appendage and dispute caused by moral principles. It is qualified to be widely used in health care of pets and protection of wildlife.

Vital signs monitoring using the macrobending small-core fiber sensor

Tao Zhao, Xuelei Fu, Jing Zhan, Kewei Chen, and Zhengying Li
Opt. Lett. 46(17) 4228-4231 (2021)

Monitoring of vital bio-signs by analysis of speckle patterns in a fabric-integrated multimode optical fiber sensor

Aviya Bennett, Yevgeny Beiderman, Sergey Agdarov, Yafim Beiderman, Rotem Hendel, Barak Straussman, and Zeev Zalevsky
Opt. Express 28(14) 20830-20844 (2020)

Wearable respiration monitoring using an in-line few-mode fiber Mach-Zehnder interferometric sensor

Ruihang Wang, Jing Zhao, Ye Sun, Hui Yu, Ning Zhou, Hongxia Zhang, and Dagong Jia
Biomed. Opt. Express 11(1) 316-329 (2020)

POF Smart Pants: a fully portable optical fiber-integrated smart textile for remote monitoring of lower limb biomechanics

Leticia Avellar, Anselmo Frizera, and Arnaldo Leal-Junior
Biomed. Opt. Express 14(7) 3689-3704 (2023)

Non-invasive human vital signs monitoring based on twin-core optical fiber sensors

Fengze Tan, Shuyang Chen, Weimin Lyu, Zhengyong Liu, Changyuan Yu, Chao Lu, and Hwa-Yaw Tam
Biomed. Opt. Express 10(11) 5940-5952 (2019)