Flexible Optical Fiber-Based Smart Textile Sensor for Human–Machine Interaction

Li, Tianliang; Qiao, Feng; Huang, Pingan; Su, Yifei; Wang, Liang; Li, Xiong; Li, Huipeng; Tan, Yuegang; Zhou, Zude

doi:10.1109/jsen.2022.3201580

Cited by 17 publications

(9 citation statements)

References 45 publications

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“…Therefore, it can first feedback the posture of the subject, the same volunteers were tested in two postures of standing and sitting breathing rate, found that the overall breathing intensity of the standing posture is slightly lower than that of the sitting posture, this is because the breathing position will move to the chest when standing, resulting in reduced abdominal expansion respiratory amplitude decreased. [ 149 ] Second, the sensor attached to the abdomen can also measure the respiratory status of the wearer during exercise. By capturing the signal during a 5 min running session, it is evident that the subject's breathing volume increases from a stationary position to exercise due to the body's natural response of increased air intake during physical activity, [ 103 ] as shown in Figure 11c.…”

Section: Applicationsmentioning

confidence: 99%

Non‐Invasive Flexible Electro‐Mechanical Sensors for Human Respiratory Monitoring and Chronic Disease Management

Liu,

Wang,

Chen

et al. 2024

Adv Materials Technologies

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As one of the important physiological signals of the human body, changes in respiration can provide an important reference for human health and is an early warning signal for some chronic respiratory diseases on heart or lung diseases. Usually, doctors combine such changes with electrocardiograph (ECG), electroencephalograph (EEG), electromyography (EMG), and electrooculogram (EOG) results of the patient to make a comprehensive analysis and judgment of the condition. Traditional respiratory monitoring methods have the limitation that portability and accuracy cannot be balanced; while the wearable respiratory monitoring sensors have come into the public's view due to their excellent performances, such as light weight, fast response, not interfering with the subject's daily movement, and maintaining excellent measurement accuracy, which provide more possibilities for the improvement of the performances of the wearable devices applied in the early stage of chronic diseases.

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Section: Applicationsmentioning

confidence: 99%

Non‐Invasive Flexible Electro‐Mechanical Sensors for Human Respiratory Monitoring and Chronic Disease Management

Liu,

Wang,

Chen

et al. 2024

Adv Materials Technologies

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“…By designing different grating periods and cladding structures, a FBG has been developed and applied to further biomedical applications due to the simple structure and low cost. Li et al presented a silica FBG integrated sensor for humans and machines, which was mainly based on a silica optical fiber with FBG sensing technology. − However, since silica optical fibers are inflexible materials, FBG sensors can only detect a small range of strain (ε < 1%), which has limited applications in human body information detection. The cross-sensitivity of optical fiber gratings to temperature and stress, especially in high-precision measurements, should be fully considered.…”

Section: Introductionmentioning

confidence: 99%

Optical Microfiber Intelligent Sensor: Wearable Cardiorespiratory and Behavior Monitoring with a Flexible Wave-Shaped Polymer Optical Microfiber

Wang,

Chen,

et al. 2024

ACS Appl. Mater. Interfaces

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With the advantages of high flexibility, strong realtime monitoring capabilities, and convenience, wearable devices have shown increasingly powerful application potential in medical rehabilitation, health monitoring, the Internet of Things, and human−computer interaction. In this paper, we propose a novel and wearable optical microfiber intelligent sensor based on a wavyshaped polymer optical microfiber (WPOMF) for cardiorespiratory and behavioral monitoring of humans. The optical fibers based on polymer materials are prepared into optical microfibers, fully using the advantages of the polymer material and optical microfibers. The prepared polymer optical microfiber is designed into a flexible wave-shaped structure, which enables the WPOMF sensor to have higher tensile properties and detection sensitivity. Cardiorespiratory and behavioral detection experiments based on the WPOMF sensor are successfully performed, which demonstrates the high sensitivity and stability potential of the WPOMF sensor when performing wearable tasks. Further, the success of the AI-assisted medical keyword pronunciation recognition experiment fully demonstrates the feasibility of integrating AI technology with the WPOMF sensor, which can effectively improve the intelligence of the sensor as a wearable device. As an optical microfiber intelligent sensor, the WPOMF sensor offers broad application prospects in disease monitoring, rehabilitation medicine, the Internet of Things, and other fields.

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“…They have potential applications in the fields of human health monitoring, [5][6][7] smart textiles, [8][9][10] electronic skin, [11,12] soft robotics, [13] and so forth. Compared to traditional sensors, flexible strain sensors have excellent flexibility, portability, and stretchability.…”

Section: Introductionmentioning

confidence: 99%

“…[ 1–4 ] Wearable strain sensors, as integral components of wearable electronic devices, can convert mechanical signals generated by human motion into real‐time electrical signals. They have potential applications in the fields of human health monitoring, [ 5–7 ] smart textiles, [ 8–10 ] electronic skin, [ 11,12 ] soft robotics, [ 13 ] and so forth. Compared to traditional sensors, flexible strain sensors have excellent flexibility, portability, and stretchability.…”

Section: Introductionmentioning

confidence: 99%

Stretchable and Highly Sensitive Flexible Strain Sensor Based on a Three‐Layer Core–Shell Structure of Polydopamine/Polypyrrole@Natural Rubber for Human Activity Monitoring

Zhan,

Yuan,

Zhang

et al. 2024

Adv Eng Mater

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In recent years, flexible strain sensors with a wide detection range and high sensitivity have garnered significant attention for human health monitoring. However, fabricating strain sensors with a broad strain range while retaining high sensitivity remains a major challenge. Here, a green and facile method is successfully developed to fabricate the PDA/PPy@NR‐based strain sensor with a three‐layer core‐shell structure. Polydopamine (PDA) and polypyrrole (PPy) are coated uniformly onto the surface of the natural rubber (NR) nanosphere by in‐situ polymerization. The electromechanical and strain sensing properties of the fabricated composite are investigated. The homogeneous coating of PPy and PDA layers has facilitated the formation of continuous conductive pathways within the NR matrix, even at low loading levels. Consequently, the strain sensor exhibits remarkable sensitivity over a wide strain range (∽800%) and long‐term reliability (2500 cycles at 50%). The PDA/PPy@NR strain sensor shows an exceptionally high gauge factor (GF) value (142.6) and a short response time (125 ms). Furthermore, this PDA/PPy@NR strain sensor could effectively detect and capture subtle and large human movements such as limb joints and facial movements as well as even distinguish the pronunciation of different words. The PDA/PPy@NR strain sensor holds great promise for integration into flexible wearable electronics.This article is protected by copyright. All rights reserved.

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Flexible Optical Fiber-Based Smart Textile Sensor for Human–Machine Interaction

Cited by 17 publications

References 45 publications

Non‐Invasive Flexible Electro‐Mechanical Sensors for Human Respiratory Monitoring and Chronic Disease Management

Non‐Invasive Flexible Electro‐Mechanical Sensors for Human Respiratory Monitoring and Chronic Disease Management

Optical Microfiber Intelligent Sensor: Wearable Cardiorespiratory and Behavior Monitoring with a Flexible Wave-Shaped Polymer Optical Microfiber

Stretchable and Highly Sensitive Flexible Strain Sensor Based on a Three‐Layer Core–Shell Structure of Polydopamine/Polypyrrole@Natural Rubber for Human Activity Monitoring

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