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A High Range-to-Resolution Multiaxis μForce and Torque Sensing Platform

IEEE-ASME TRANSACTIONS ON MECHATRONICS 2021年第4期26卷 1837-1845页

作者： Tiwari, Bhawnath Blot, Melissa Laurent, Guillaume J. Agnus, Joel Sandoz, Patrick Lutz, Philippe Clevy, Cedric Univ Bourgogne Franche Comte CNRS FEMTO ST Inst F-25000 Besancon France

This article presents a novel multiaxis mu Force sensor with a range-to-resolution ratio of 55 000, which makes the sensing device highly useful for wide range of applications. The presented device relies on a sensing strategy where a 2-D encoded micropattern is encrypted to the mobile part of the compliant platform. This encoded pattern allows multiaxis visual sensing of displacements over a long range, whereas Fourier computations ensure subpixel interpolation leading to the high resolution. The device is fabricated on a silicon wafer by means of clean room technology to comply with both precision encoding requirements and reliable mechanical behavior. This article presents the design, modeling, and fabrication as well as the experimental validation of the multiaxis mu Force-Torque sensor. A modeling strategy is proposed for an effective estimation of force/torque with its capability to adapt nonlinear stiffness evolution during the external loading. Experimentation demonstrates a sensing resolution of 2 mu N over a validated range of 110 mN. The proposed sensor measures the force along the two planar axes, and also the torque along the axis orthogonal to the plane, thus, validating its axial decoupling capabilities.

关键词： Force measurement force sensors instrumentation and measurement materials testing microsensors nanopositioning optoelectronic and photonic sensors periodic structures sensor systems and applications

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Compact Miniaturized Antenna Design for Enhanced Data Rates in Implantable Brain-Machine Interfaces 1

Compact Miniaturized Antenna Design for Enhanced Data Rates ...

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1st International conference on Global Aeronautical Engineering and Satellite Technology, GAST 2024

作者： Bousrout, Abdelmouttalib Khabba, Asma El-Haryqy, Noureddine Ibnyaich, Saida Mazri, Tomader Habibi, Mohamed Ibn Tofail University Advanced Systems Engineering Laboratory National School of Applied Sciences Kenitra Morocco Team Department of Physics Faculty of Sciences Semlalia Marrakesh Morocco Ibn Tofail University Laboratory of Electronic Systems Information Processing Mechanics and Energetics Faculty of Sciences Kenitra Morocco

ISBN: (纸本)9798350371598

This paper presents an ultra-wideband implantable antenna designed for brain-machine interface, covering the industrial, scientific, and medical (ISM) band from 2.4 to 2.48 GHz. The antenna, integrated into a phantom to evaluate coupling effects, is constructed using a substrate of Rogers 3006, and a superstrate composed of the same material featuring thicknesses of 0.13 mm and 0.25 mm, respectively. These materials exhibit advantageous dielectric characteristics, such as flexibility, conformable structure, and biocompatibility, making them suitable for medical applications. To maintain the attributes of an electrically small radiator and ensure optimal performance, the antenna is designed with dimensions of 3.3 x 4 x 0.38 mm3. Open-ended slots in the radiating element facilitate antenna miniaturization, enhance impedance matching, and broaden the bandwidth. Notably, the antenna achieves a peak gain of -22.5 dBi and an impedance-matched bandwidth of 12.5% within the ISM band. Finite element simulations were conducted using HFSS (High-Frequency Structure Simulator) in a homogeneous environment to evaluate the performance of the implantable antenna. Validation of the results was achieved using CST (Computer Simulation Technology), demonstrating the robustness and reliability of the obtained outcomes. © 2024 IEEE.

关键词： Bandwidth

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A Novel Wearable Circular Polarized Antenna Design for Wireless Power Transfer systems in E-Health applications 10

A Novel Wearable Circular Polarized Antenna Design for Wirel...

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10th International conference on Wireless Networks and Mobile Communications, WINCOM 2023

作者： Salhane, Ilham Rifi, Mounir Terchoune, Hanae Elmorabeti, Soumaya Iga Institute Hassan Ii University Laboratory RITM/ESTC Casablanca Morocco Hassan Ii University Laboratory RITM/ESTC Casablanca Morocco

ISBN: (纸本)9798350329674

In this article, a new design based on a circular polarized antenna array 2x2 for use in wearable devices is presented. The objective of this work is to implement an efficient wireless power transfer (WPT). Our approach consist to address remote medical sensors using the 5.8 GHz ISM frequency band. We have carried out a detailed simulation of a rectenna system (a combination of antenna and rectifier circuit) for wireless energy transfer. The simulation model was developed to evaluate the system's performance in terms of transmitted power and energy efficiency. The proposed receiver antenna not only exhibits excellent performance but also achieves an impressive gain of 9.47dB. The results obtained demonstrated the feasibility of remote wireless energy transfer in the medical field, using the 5.8 GHz ISM frequency band. The results of this research contribute to the development of more advanced and autonomous wireless medical monitoring systems, enabling better quality of care and greater flexibility in medical applications. © 2023 IEEE.

关键词： Energy transfer

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Enhancing Charge Storage Mechanism in Mixed Metal Phosphate as Anodic Electrode Material for Energy Storage systems 21

Enhancing Charge Storage Mechanism in Mixed Metal Phosphate ...

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21st International Bhurban conference on Applied Sciences and Technology, IBCAST 2024

作者： Ahmed, Anique Karim, Muhammad Ramzan Abdul Usmana, Muhammad GIK Institute of Engineering Sciences and Technology Faculty of Engineering Sciences Topi23640 Pakistan GIK Institute of Engineering Sciences and Technology Faculty of Materials and Chemical Engineering Topi23640 Pakistan

ISBN: (纸本)9798331516680

State-of-the-art supercapacitors have garnered significant interest for their notable electrochemical performance;however, there is a need for electrode materials with improved charge storage capacities. In this study, we present the synthesis of metal phosphate nanomaterials using a facile sonochemical method. Initially, single metal phosphates of Manganese (Mn), Cobalt (Co), and Zinc (Zn) were synthesized. Subsequently, the incorporation of Zn was improved in the mixed metal phosphate nanomaterials. x-ray diffraction, energy dispersive x-ray spectroscopy, and Scanning electron microscopy were employed to explore the crystalline structure, elemental composition, and surface topography of as-synthesized nanomaterial. After, the electrochemical characteristics were analyzed in three electrode setup. Mixed metal phosphate (S4) sustains superior electrochemical performance (395.18 Cg-1 specific capacity at 1.0 A g-1) compared to single metal phosphate. The electrochemical performance operated at a voltage window of 0.7 and 0.6 V for Cyclic voltammetry (CV) and Galvanostatic charge discharge (GCD), respectively. In GCD, the prepared material electrode (ZnCoMn(PO4)2) shows a comparatively batter discharge time that indicates its capability for industrial applications. This novel advancement in ternary metal phosphates is suggested to be promising electrode material for advanced energy storage systems. © 2024 IEEE.

关键词： Cyclic voltammetry

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sensor-Based Multi-Waypoint Autonomous Robot Navigation with Graph-Based Models

Sensor-Based Multi-Waypoint Autonomous Robot Navigation with...

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Autonomous systems: sensors, Processing, and Security for Ground, Air, Sea, and Space Vehicles and Infrastructure 2023

作者： Rogers III, James H. Sellers, Timothy Lei, Tingjun Carruth, Daniel W. Luo, Chaomin Department of Electrical and Computer Engineering Mississippi State University Mississippi StateMS39762 United States Center for Advanced Vehicular Systems Mississippi State University StarkvilleMS39759 United States

ISBN: (数字)9781510661974

ISBN: (纸本)9781510661967

Multi-waypoint navigation for autonomous robot is in high demand in real-world robotics applications including search and rescue, disaster response, and environment exploration. In this paper, a sensor-based methodology is proposed for validation of autonomous robot multi-waypoint navigation utilizing graph-based models with adjacent node selection. In addition to time and distance efficiency, the proposed graph-based models incorporate safety in relation to the robot's environment as a driving feature. These models provide path planning for autonomous robot experiments. This methodology is implemented in a real-world environment with simulated dynamic obstacles utilizing a Clearpath Jackal unmanned ground vehicle (UGV) featuring four-wheel drive, GPS, odometry, and a Velodyne VLP-16 LiDAR as the experimental robot configuration. The LiDAR unit utilized has a one hundred meter range with a thirty degree vertical field of view, as the primary navigation sensor. It is utilized to map the environment prior to performing autonomous navigation experiments. This robot configuration is also presented in a simulated environment for more thorough evaluation. The environments to be examined are controlled with obstacles and environment features within the expected view of the LiDAR. The proposed graphbased model is evaluated in terms of planning efficiency from simulated to real-world environments including dynamic obstacle avoidance. © 2023 SPIE. All rights reserved.

关键词： Navigation

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Multi-stage Information Processing systems with VM Migration for Maximum Accuracy

Multi-stage Information Processing Systems with VM Migration...

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2024 IEEE International conference on Consumer Electronics, ICCE 2024

作者： Murase, Tutomu Fukushima, Yukinobu Wu, Celimuge Ji, Yusheng Nagoya University Nagoya Japan Okayama University Okayama Japan The Universityof Electro-Communications Tokyo Japan National Insitute of Informatics Tokyo Japan

ISBN: (纸本)9798350324136

This paper outlines a Multi-stage Information Processing system and a VM migration method to improve the performance of the system. To process applications that require responsiveness and accuracy at the same time, such as sensor data processing in automated driving, a Multi-stage Information Processing system has been proposed in which the edge computer and the data center computer process information simultaneously to obtain responsiveness from the edge computer and accuracy from the data center. This paper describes the system and explains the VM migration method to obtain highly accurate responsiveness in such a system. © 2024 IEEE.

关键词： driving Edge Computing Migration Multi-stage Information Processing System VM VR

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Event-Based Kilohertz Eye Tracking using Coded Differential Lighting 22

Event-Based Kilohertz Eye Tracking using Coded Differential ...

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22nd IEEE/CVF Winter conference on applications of Computer Vision (WACV)

作者： Stoffregen, Timo Daraei, Hossein Robinson, Clare Fix, Alexander

ISBN: (纸本)9781665409155

Pixels in an event camera operate asynchronously and independently, reporting changes in intensity as events - tuples of (x, y) position, polarity s and timestamp t at microsecond resolution. Event cameras operate at low power (approximate to 5mW) and respond to changes in the scene with a latency on the order of microseconds. These properties make event cameras an exciting candidate for eye tracking sensors on mobile platforms such as Augmented/Virtual Reality (AR/VR) headsets, since these systems have hard realtime and power constraints. One proven method for eye tracking and gaze estimation is corneal glint detection. We exploit the fact that corneal glint tracking only requires a sparse set of pixels in the image, by making use of the natural sparsity of event cameras, which only detect changes in the scene. To enhance this effect, we design an illumination scheme, Coded Differential Lighting, which enhances specular reflections, suppresses all other events, and solves the light-to-glint correspondence. This is the first purely event-based corneal glint detection and tracking algorithm, which operates on standard hardware at kHz sampling rate.

关键词： Headphones Lighting Gaze tracking Cameras sensor systems Reflection Real-time systems

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Robust Intrusion Detection for Resilience Enhancement of Industrial Control systems: An Extended State Observer Approach

Robust Intrusion Detection for Resilience Enhancement of Ind...

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IEEE Texas Power and Energy conference (TPEC)

作者： Ahmad, Saif Ahmed, Hafiz INP ENSEEIHT Lab Plasma & Convers Energie F-31071 Toulouse France Univ Sheffield Nucl AMRC Midlands Derby DE73 5SS England

ISBN: (纸本)9781665479035

We address the problem of attack signal estimation in industrial control systems that are subjected to actuator false data injection attack (FDIA) and where the sensor measurements are corrupted by non-negligible high-frequency measurement noise. The actuator FDIA signal is categorized as disturbance to be estimated and subsequently compensated, based on the concept of extended state observer (ESO). We investigate the efficacy of two alternatives to conventional ESO namely, cascade ESO (CESO) and low-power higher-order ESO (LHESO), that guarantee improved estimation performance in case of noisy measurement data as well as time-varying attack signals. Simulation and experimental results under different types of FDIAs demonstrate the advantages of designed schemes in comparison to conventional linear and nonlinear ESOs, using network motion control system as an illustrative example. The results highlight the limitations of conventional ESO under noisy measurement data, particularly nonlinear ESO which is based on fal(center dot) function and commonly used in control literature.

关键词： Actuator false data injection attack extended state observer industrial control system measurement noise

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IOT based Monitoring and Rapid Controlling Circuit Breaker

IOT based Monitoring and Rapid Controlling Circuit Breaker

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Intelligent systems and advanced applications (ICISAA), International conference on

作者： Pankaj Kumar Rajashree Bhokare Department of Electrical Engineering Dr. D.Y. Patil Institute of Technology Pimpri Pune India

ISBN: (数字)9798331539948

ISBN: (纸本)9798331539955

Customary low-voltage circuit breakers lack integrated chips, making them challenging to enhance with smart capabilities. However, with advancements in chip and data technology, it’s now possible to incorporate electronics with chips and communication modules into these circuit breakers, making them intelligent and automated considering that these circuit breakers are frequently mounted outside; their design must also consider the requirements of external environments. The communication capability of the circuit breaker is crucial for making it smart. Diverse safety mechanisms, remote control capabilities, early warning systems, continuous surveillance, prompt recuperation, and other functionalities can be integrated into intelligent circuit breakers to enhance the reliability of minimal voltage circuits.

关键词： Microcontrollers Circuit breakers Surveillance sensor systems Real-time systems Safety Integrated circuit reliability Voltage control Relays Remote control

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IoT-based automatic road accident detection systems: A review

IoT-based automatic road accident detection systems: A revie...

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Soft Computing for Security applications (ICSCSA), International conference on

作者： Prabu C R Kalakunnath Namitha Department of Computer Science and Engineering Amrita School of Computing Amrita Vishwa Vidyapeetham Amritapuri India

ISBN: (数字)9798331515720

ISBN: (纸本)9798331515737

With the increasing number of vehicles on roads, the occurrence of road accidents has become a major concern globally. Automatic road accident detection systems based on Internet of Things (IoT) technologies have emerged as a promising solution to improve emergency response times and reduce the severity of accidents. The review encompasses various aspects including the underlying technologies, sensor networks, data processing algorithms, communication protocols, and system architectures used in these systems. Furthermore, the paper discusses the challenges and limitations of current approaches such as sensor accuracy, system scalability, and real-time data processing. It also identifies future research directions including the integration of advanced sensor technologies, machine learning algorithms for accident prediction, and the development of standardized communication protocols for interoperability among different systems. To improve road safety, researchers and practitioners can use the ideas to help build IoT- based autonomous road accident detection systems that are more effective and efficient.

关键词： Road accidents Protocols Machine learning algorithms Reviews Emergency services Data processing Software Hardware Internet of Things Vehicles

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