A5100335129- Advanced Sensor and Energy Harvesting Materials
- Tactile and Sensory Interactions
- Advanced Fiber Optic Sensors
- Soft Robotics and Applications
- Robot Manipulation and Learning
- Muscle activation and electromyography studies
- Modular Robots and Swarm Intelligence
- Prosthetics and Rehabilitation Robotics
- Non-Invasive Vital Sign Monitoring
- Manufacturing Process and Optimization
- Robotic Locomotion and Control
- Advanced Sensor and Control Systems
- Supercapacitor Materials and Fabrication
- Robotic Path Planning Algorithms
- Microgrid Control and Optimization
- Interactive and Immersive Displays
- Robotics and Automated Systems
- Reinforcement Learning in Robotics
- Advanced DC-DC Converters
- Advanced Manufacturing and Logistics Optimization
- Advanced Battery Technologies Research
- Social Robot Interaction and HRI
- Heart Rate Variability and Autonomic Control
- Real-time simulation and control systems
- Evaluation Methods in Various Fields
Tencent (China)
2019-2024
Wuhan University of Technology
2023
Google (United States)
2021-2022
Singapore Institute of Manufacturing Technology
2015-2019
Agency for Science, Technology and Research
2017
Beijing Institute of Technology
2014
The University of Texas at Dallas
2013
Wuhan University of Science and Technology
2013
University of Genoa
2011-2012
China Jiliang University
2010
Flexible strain sensors play an important role in electronic skins, wearable medical devices, and advanced robots. Herein, a highly sensitive fast response optical sensor with two evanescently coupled micro/nanofibers (MNFs) embedded polydimethylsiloxane (PDMS) film is proposed. The exhibits gauge factor as high 64.5 for ≤ 0.5% resolution of 0.0012% which corresponds to elongation 120 nm on 1 cm long device. As proof-of-concept, fingertip pulse measurement realized. properties temporal...
Humanoid tactility has been boosting robotic intelligence in object recognition, dexterous manipulation, and human–robot interaction. For many artificial tactile sensors, especially those based on optical principles, inflexibility, bulkiness, monomodality limit their potential to function as humanoid skins. Herein, by embedding lab‐made nanofibers (ONFs) into elastomeric films, soft, flexible, thin (around 500 μm, similar human skin), multimodal (force thermosensitive) skins are achieved....
The monitoring of proximity-contact events is essential for human-machine interactions, intelligent robots, and healthcare monitoring. We report a dual-modal sensor made with two functionalized optical microfibers (MFs), which inspired by the somatosensory system human skin. integrated hierarchical structure gradationally detects finger approaching touching measuring relative humidity (RH) force-triggered light intensity variations. Specifically, RH sensory part shows enhanced evanescent...
Abstract Rich and accurate tactile perceptive capability is important for both humans robots. Soft materials exhibit unique characteristics to construct high‐performance sensors such as high sensitivity resistance overload. In this work, a multiaxis sensor based on soft anisotropic waveguide that can distinguish normal force shear force, which greatly expand its potential uses in practice, reported. First, the anisotropy of sensor's response vector forces validated numerically...
Soft and stretchable tactile sensors have received extensive attention for their potential applications in wearables, human–robot interaction, intelligent robots. Herein, inspired by the functions of skin somatosensory signal generation processing, an artificial intelligence‐motivated skin‐like optical fiber (SOFT) sensor is proposed. It features multifunctional touch interaction capabilities including amplitude position tensile strain. Four Bragg gratings (FBGs) are embedded a three‐layer...
Flexible sensors have attracted significant attention for medical applications. Herein, an AI-assisted stretchable polymer-based (AISP) sensor has been developed based on the Beer-Lambert law disease monitoring and telenursing. Benefiting from use of superior polymer materials, AISP features a high tensile strain up to 100%, durability >10,000 tests, excellent waterproofness, no effect temperature (1.6-60.9 °C). Such advantages support capability that can be flexibly pasted skin surface as...
Flexible sensors are the main components of wearable devices. Compared with flexible substrate-based skin-like sensors, textile have intrinsic advantages excellent breathability, compliance human body and comfort to skin. In this article, a optical fiber-based smart (FOFT) sensor has been proposed for application intelligent human–machine interaction (HMI) healthcare. The FOFT integrated fiber Bragg gratings (FBGs) yarns in way plain weave. A double-layer crossover structure is improve...
This paper presents a novel structure-controlled variable stiffness robotic gripper that enables adaptive gripping of soft and rigid objects with wide range compliance. With the structure-controllable principle, is controlled by mechanical structure configurations rather than material properties or electronic means. The principle realized changing effective second moment area finger through rotating built-in flexure hinge shaft. Based on this states can be continuously, instead discretely,...
Variable stiffness actuator (VSA) plays an important role for achieving safety and robustness robots to physically interact with environments. This article proposes a structure-controlled approach in developing new variable robotic joint the merits of compactness, high stiffness, displacement-to-stiffness ratio. Unlike common methods using antagonist springs lever concept, achieves variation through adjustment mechanical structure configuration inside actuator. Specifically, is realized by...
This paper presents a three-dimensional printed building block-type tactile sensor based on fiber Bragg grating for force feedback of nursing robots with the achievement shape estimation and pulse signal detection. The includes four sensing units splicing grooves, which can be expanded like block to achieve large-area perception. Each unit is composed bellows elastomer suspended optical inscribed grating. A response surface method driven by simulation data has been applied establish...
Universal grasping for a diverse range of objects is challenging problem in robotics, especially the presence mixed properties with fragile/rigid and heavy/light. Toward universal grasping, this article presents practical systematic control framework that enables variable stiffness gripper to handle using category-aware force regulation approach, termed classification-based grasping. Under framework, convolutional neural network (CNN) employed classify category object, determined based on...
<title>Abstract</title> Summarizing knowledge from animals and human beings inspires robotic innovations. In this work, we propose a framework for driving legged robots act like real with lifelike agility strategy in complex environments. Inspired by large pre-trained models witnessed impressive performance language image understanding, introduce the power of advanced deep generative to produce motor control signals stimulating animals. Unlike conventional controllers end-to-end RL methods...
Wavelength tracking methods are widely employed in fiber-optic interferometers, but they suffer from the problem of fringe order ambiguity, which limits dynamic range within half free spectral range. Here, we propose a new sensing strategy utilizing unique property dispersion turning point an optical microfiber coupler mode interferometer. Numerical calculations show that position is sensitive to ambient refractive index, and its can be approximated by dual peaks/dips lay symmetrically on...
Driven by the trend of life-cycle design and sustainable production, an innovative project called self-reconfigurable intelligent swarm fixtures (SwarmItFIX) funded European Commission is being developed. The investigates application robotic multi agent for support automotive airplane body panels during their manufacturing assembly processes. This paper addresses exploration development adaptable heads, which are end-effector fixture. head able to adapt shape workpiece freeze its after...
A flexible arc-shaped micro-Fiber Bragg Grating (mFBG) array three-dimensional tactile sensor for fingertip signal detection and human pulse monitoring is presented. It based on a three mFBGs which embedded in an poly (dimethylsiloxane) (PDMS) elastomer, can effectively discriminate the normal force, left right force by reflected intensity variation of mFBGs. Different from traditional FBG sensors, this measures detecting changes light intensity, avoiding wavelength cross-sensitivity impact...
A flexible single-mode polymer optical fiber (SMPOF) based modal interferometer for high-sensitivity wrist bending measurement is presented. The SMPOF fabricated by cyclo-olefin (COP) material via the preform-to-fiber drawing technology. section of sandwiched between two standard silica fibers (SMF) ultraviolet-cured resin (UV Resin), which constructs sensor. As applies to SMPOF, wavelength and interference depth are modulated simultaneously. Experimental results show that within curvature...
This paper presents a new variable stiffness actuator (VSA) based on structure-controlled method: controlling the mechanical structure of by rotating four flexure hinges. The VSA possesses property that output position and are independently controlled. is realized serial arrangement principle driving motor, small variation motor novel mechanism (VSM). VSM consists combined notch hinge frames, each which contains an inner rotary shaft outer stationary housing. adjusted to change second moment...
Having the merits of chemical inertness and immunity to electromagnetic interference, light weight, small size, softness, optical waveguides have attracted much attention in making tactile sensors recently. This paper presents a new design waveguide using two layers cores, one which has an uniform width other incremental width. It is deduced verified that contact force can be derived from power loss uniform-width core, while position core together with estimated force. By this dual-core...
Small-signal stability analysis in a balanced three-phase system can be performed by extracting source and load impedance synchronous rotating frame (d-q) using Generalized Nyquist Criterion (GNC). For single-phase or unbalance systems, like data center power system, the derivation of input d-q is not straightforward because system's inherent time-variant condition due to unbalanced load. Existing approaches analyze such are based on harmonics linearization stationary creating virtual frames...
Modern power applications require faster, cheaper and better control systems, the performance demanded from embedded controllers is ever increasing. Therefore, well-equipped digital education platforms laboratories are becoming significant demand to educate next generation engineers researchers. In this paper, a virtual electronics drives lab presented for graduate or undergraduate engineering programs practicing engineers. These tools help students learn how configure peripherals of signal...