All‐Weather Self‐Powered Intelligent Traffic Monitoring System Based on a Conjunction of Self‐Healable Piezoresistive Sensors and Triboelectric Nanogenerators

Advanced Functional Materials, Год журнала: 2023, Номер 33(52)

Опубликована: Сен. 13, 2023

Abstract A self‐powered and sustainable traffic monitoring system is highly required for future urban development. Herein, self‐healable piezoresistive sensors triboelectric nanogenerators (TENGs) are constructed by in situ polymerization of polyvinyl alcohol‐polyacrylamide double network hydrogel the presence sodium alginate tannic acid‐modified cellulose nanocrystals (denoted as PPC) all‐weather intelligent applications. Because hydrogen bonding boron ester bonding, resultant PPC‐based strain sensor can rapidly self‐heal restore its sensing ability within 1 min with a self‐healing efficiency 97.4%. Based on effect, ions endow relatively high gauge factor 8.39, which monitor motion fatigue drivers. triboelectrification TENG detect instantaneous vehicle speed, judge accident liability, evaluate weight, alert driver to prevent accidents caused drowsy driving. After partially replacing water PPC glycerin, resulting exhibits stable performance at temperatures ranging from ‐30 40 °C, ensuring ability. The promising security cities.

Язык: Английский

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Triboelectric gait sensing analysis system for self‐powered IoT‐based human motion monitoring

InfoMat, Год журнала: 2024, Номер 6(5)

Опубликована: Янв. 4, 2024

Abstract Quantitative analysis of gait parameters, such as stride frequency and step speed, is essential for optimizing physical exercise the human body. However, current electronic sensors used in motion monitoring remain constrained by factors battery life accuracy. This study developed a self‐powered system (SGAS) based on triboelectric nanogenerator (TENG) fabricated electrospun composite nanofibers regulating programs. The SGAS consists sensing module, charging data acquisition processing an Internet Things (IoT) platform. Within two specialized units, TENG‐S1 TENG‐S2, are positioned at forefoot heel to generate synchronized signals tandem with user's footsteps. These instrumental real‐time count speed monitoring. output TENG units significantly improved systematically investigating nanofibers' composition, strength, wear resistance. Additionally, charge amplifier circuit implemented process raw voltage signal, consequently bolstering reliability signal. refined then ready further reading calculation micro‐controller unit (MCU) during signal transmission process. Finally, well‐conditioned wirelessly transmitted IoT platform analysis, storage, visualization, enhancing image

Язык: Английский

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Fabrication of MoS2 Petals-Decorated PAN Fibers-Based Triboelectric Nanogenerator for Energy Harvesting and Smart Study Room Touch Sensor Applications

Advanced Fiber Materials, Год журнала: 2024, Номер unknown

Опубликована: Июль 5, 2024

Язык: Английский

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A comprehensive review on triboelectric sensors and AI-integrated systems

Materials Today, Год журнала: 2024, Номер unknown

Опубликована: Сен. 1, 2024

Язык: Английский

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The intrinsic impact of dielectric constant on output generation of triboelectric nanogenerators

Nano Energy, Год журнала: 2024, Номер 123, С. 109383 - 109383

Опубликована: Фев. 11, 2024

Triboelectric Nanogenerators (TENG), which convert mechanical energy into electrical pulses, are envisioned to lead future harvesting and self-powered sensing applications in wearable IoT sectors. While optimisation of most parameters related TENG is well understood, the impact dielectric constant, fundamental their output generation, still a highly debated topic. The intrinsic constant on performance extremely difficult assess experimentally, as it closely associates with other like surface charge density that can alter outputs. Herein, for first time, we present study fully characterise First, theoretical methods used investigate outputs against increasing constant. A novel experimental technique introduced using an array liquid filler materials, providing unique pathway systematically tune without impacting parameters. This study, unveils load-dependent behaviour generation along several previously unreported trends. By tuning demonstrate up 122% (theoretical) 28% (experimental) increments power output, paving way enhanced optimisation.

Язык: Английский

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Hexagonal boron nitride composite film based triboelectric nanogenerator for energy harvesting and machine learning assisted handwriting recognition

Nano Energy, Год журнала: 2025, Номер unknown, С. 110689 - 110689

Опубликована: Янв. 1, 2025

Язык: Английский

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Oxide based triboelectric nanogenerators: Recent advances and future prospects in energy harvesting

Materials Science and Engineering R Reports, Год журнала: 2024, Номер 161, С. 100866 - 100866

Опубликована: Окт. 22, 2024

Язык: Английский

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Graphene reinforced cement-based triboelectric nanogenerator for efficient energy harvesting in civil infrastructure

Nano Energy, Год журнала: 2024, Номер unknown, С. 110380 - 110380

Опубликована: Окт. 1, 2024

Язык: Английский

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Self-powered wearable Internet of Things sensors for human-machine interfaces: A systematic literature review and science mapping analysis

Nano Energy, Год журнала: 2024, Номер unknown, С. 110252 - 110252

Опубликована: Сен. 1, 2024

Язык: Английский

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Nonlinear vibration energy harvesting via parametric excitation: Snap-through with time-varying potential wells

Mechanical Systems and Signal Processing, Год журнала: 2024, Номер 220, С. 111625 - 111625

Опубликована: Июнь 15, 2024

Язык: Английский

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