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检索条件"任意字段=Conference on Advanced Sensor Systems and Applications X"

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Edge Computing in Wireless Sensing applications 11

Edge Computing in Wireless Sensing Applications

引用

11th Mediterranean conference on Embedded Computing (MECO) / 3rd Summer School on Cyber-Physical + systems and Internet of Things (CPS and IoT)

作者： Santejudean, Tudor Voicu Mois, George Dan Sanislav, Teodora Folea, Silviu Corneliu Tech Univ Cluj Napoca Dept Automat Cluj Napoca Romania

ISBN: (纸本)9781665468282

Edge computing has emerged as the solution to the continuously increasing numbers of Internet-connected devices and to the ever increasing amounts of data transmitted by them. Through the use of advanced algorithms and hardware components it allows sensor data processing at the source and reduces the volumes of data transmitted within the network. This paper focuses on the idea of edge computing, looks at some of the most important achievements in the field, and presents a use case system that shows how edge intelligence is becoming more common. The developed use case system is an environmental wireless sensor that is able to run for long periods of time on a single coin-cell battery while measuring parameters like equivalent CO2 (carbon dioxide) and VOC (Volatile Organic Compounds). This was made possible through the device's design, components, and advanced firmware, that uses high-level signal processing and fusion algorithms.

关键词： Edge computing Internet-of-Things wireless sensor

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Integrated, waveguide-based spectrometer for high-performance applications 24

Integrated, waveguide-based spectrometer for high-performanc...

引用

2025 conference on MOEMS and Miniaturized systems

作者： Weber-Porter, Z. Amin, Md. Dixon, P. Adams, T. Yuzvinsky, T. D. Ramollari, H. DeMartino, M. Bundy, K. Hawkins, A. R. Schmidt, H. UC Santa Cruz ECE Dept 1156 High St Santa Cruz CA 95064 USA Brigham Young Univ ECEn Dept 450 Engn Bldg Provo UT 84602 USA UC Santa Cruz Astrophys & Astron Dept 1156 High St Santa Cruz CA 95064 USA

ISBN: (数字)9781510685130

ISBN: (纸本)9781510685123;9781510685130

Spectral analysis of light is at the heart of countless scientific discoveries, techniques, and instruments. Miniaturized spectrometers have recently seen great advances, but combining low complexity with high performance remains challenging. We have recently introduced a novel integrated photonic spectrometer based on imaging of wavelength-dependent light propagation patterns in multi-mode interference (MMI) waveguides, followed by machine learning analysis with suitable techniques. A spectral resolution of 0.05 nm and resolving power of 16,000 were demonstrated in the near-infrared range, along with broadband operation in the visible spectrum, and the integration of four spectrometers in an array on a single chip. Stable operation of the device over extended periods of time is critical for many applications. Here, we introduce a robust approach for achieving long-term fiber-to-chip coupling by permanent attachment of a single-mode fiber to the input waveguide in a custom-made device holder. A mechanically stable and permanent coupling method, employing a UV-curable adhesive with minimal shrinkage, ensures precise and lasting alignment. This technique significantly enhances spectrometer stability and performance under environmental and mechanical perturbations. Over a week-long evaluation, the permanently coupled spectrometer demonstrated exceptional spectral accuracy and stability, with only a modest similar to 10% power reduction, in stark contrast to the rapid misalignment observed in free-space coupled systems. Accurate spectral reconstruction using a convolutional neural network was maintained throughout the testing period. Future work will focus on extending operational testing durations, advanced packaging solutions, and adaptations for remote and real-time applications, cementing the practicality of MMI waveguide-based spectrometry in diverse real-world environments.

关键词： spectrometer integrated photonics multi-mode interference waveguide fiber-to-chip coupling

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PRELIMINARY DESIGN OF TRANSVERSE DEFLECTING STRUCTURE systems FOR SHENZHEN SUPERCONDUCTING SOFT-x-RAY FREE ELECTRON LASER 32

PRELIMINARY DESIGN OF TRANSVERSE DEFLECTING STRUCTURE SYSTEM...

引用

32nd Linear Accelerator conference, LINAC 2024

作者： Li, Z. Shao, J. Huang, Q. Wei, L. Yang, J. Zhang, W. Institute of Advanced Science Facilities Shenzhen China Dalian Institute of Chemical Physics CAS Dalian China

ISBN: (纸本)9783954502196

Transverse Deflecting Structures (TDS) are commonly used in Free Electron Laser (FEL) facilities for the measurement of longitudinal information of electron beam, including bunch length, temporal distribution, slice emittance, etc. Shenzhen Superconducting Soft-x-ray Free Electron Laser (S3FEL) is a high-repetition-rate FEL recently proposed for scientific research and applications. In S3FEL, TDSs that work at S-band (2997.222 MHz) and x-band (11988.889 MHz) will be utilized for the diagnosis and analysis of longitudinal phase space of electron bunches along the beamline. In this manuscript, we present the preliminary design of both S-band and x-band TDS systems of S3FEL, including system layout, deflecting structures, pulse compressors, RF distribution networks, etc. Additionally, we introduce a new parallel-coupled TDS cavity with variable polarization for multi-dimensional phase space diagnostics. Content from this work may be used under the terms of the CC BY 4.0 licence (© 2024).

关键词： Pulse repetition rate

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A wide-spectrum 550-1600 nm, 16k VIS + 8 NIR pixels, high-dynamic range image-sensor for biomedical applications 30

A wide-spectrum 550-1600 nm, 16k VIS + 8 NIR pixels, high-dy...

引用

30th IEEE International conference on Electronics, Circuits and systems, ICECS 2023

作者： Alacoque, Laurent Coriat, David Tualle, Jean-Michel Espinas, Valentin Alacoque, xavier Silva, Anabela Da Univ. Grenoble Alpes CEA Leti DOPT Department Grenoble France Univ. Grenoble Alpes CEA List DSCIN Department Grenoble France LPL UMR 7538 Université Sorbonne Paris-Nord Villetaneuse France Aix Marseille Univ CNRS Centrale Marseille Institut Fresnel Aix Marseille University CERIMED Marseille France Anesthesia Intensive Care Oncopole Claudius Regaud Toulouse France

ISBN: (纸本)9798350326499

This paper presents an Application-Specific Integrated Circuit (ASIC) wide-spectrum image sensor and its sensing-module and system. It is made of an integrated visible image sensor, an external NIR-SWIR photodiodes acquisition system and on-chip Analogue to Digital conversion and provides a digital interface to a portable, fully integrated host system based on a raspberry-pi with a dedicated 'hat' board. The system is capable of real-time Diffuse Optical Imaging in a wide spectrum with a resolution of 3x16k visible images and 3x8 NIR photodiodes. A signal-to-noise ratio of 66dB in the NIR domain was attained at a total power of 18.4 mW. © 2023 IEEE.

关键词： Photodiodes

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Experimental Testing of the Phased Array Antenna Beamsteering for the V2x applications 25

Experimental Testing of the Phased Array Antenna Beamsteerin...

引用

25th IEEE International conference of Young Professionals in Electron Devices and Materials, EDM 2024

作者： Saifullin, Talgat E. Grakhova, Elizaveta P. Ishmiyarov, Arsen A. Katerinkina, Ekaterina N. Letavin, Denis A. Kutluyarov, Ruslan V. Research Lab. "Sensor Systems Based on the Integrated Photonics Devices" Ufa University of Science and Technology Ufa Russia Telecommunication systems Dept. Ufa University of Science and Technology Ufa Russia Institute of Radio Electronics Information Technologies dept Ural Federal University Yekaterinburg Russia

ISBN: (纸本)9798350389234

The paper showcases experimental testing of a phased array antenna for connecting and tracking vehicles in Vehicle-to-Everything technology applications. The study involved measuring the performance of a microstrip half-octagon shaped emitter and a 14-element linear antenna array with a main lobe width of no more than 8 degrees. Both the emitter and antenna array were designed and manufactured using WL-CT350 laminate material. The antenna system operates within the frequency range of 5614 to 5943 MHz. To control the main lobe position of the antenna array, a beamforming circuit was developed, which consisted of a splitter and a phase control unit utilizing planar phase shifters. These phase shifters were controlled by Arduino Mega 2560 microcontrollers, which implemented machine-learning algorithms to determine the optimal service sector based on the location of the vehicle. Experimental tests were conducted in an anechoic chamber to demonstrate the antenna's ability to steer a focused radio beam across ten different sectors within a scanning range of 90 degrees. © 2024 IEEE.

关键词： Antenna lobes

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Design and Analysis of Circularly Polarized 2T2R MIMO U Shaped Notched Patch Antenna for Centimeter Wave applications

Design and Analysis of Circularly Polarized 2T2R MIMO U Shap...

引用

2024 International conference on Smart Electronics and Communication systems, ISENSE 2024

作者： Dev Saran, R. Dey, Souradeep Themalil, Milind Thomas Department of ECE Puducherry India Agartala Department of ECE Agartala India Department of ECE Kerala Kottayam India

ISBN: (纸本)9798331528126

In this study, a circularly polarized 2x2 MIMO patch antenna with a U-shaped notched design and quarter-wave transformer feed is developed for 6G communication in the centimeter-wave (cm-wave) spectrum. The antenna utilizes a MIMO feeding technique to enhance its performance, with the resonant frequency set at 11 GHz. The chosen substrate material is Rogers RT 6010, which is appropriate for high-frequency and broadband applications due to its low dielectric loss and dielectric permittivity of 10.5. The dimensions for the single-element patch are 20×20 mm2with a height of 1.9 mm, and for the 2x2 MIMO configuration, the overall size is 40×40 mm2with the same thickness. The primary radiating patch adopts a rectangular shape and employs a quarter-wave transformer feed. Simulations conducted using CST software evaluate key parameters such as Z-parameters, VSWR, S-parameters, gain, directivity, axial ratio, efficiency, radiation patterns, MEG, DG and ECC. The proposed antenna achieves a gain greater than 5 dB, demonstrating its effectiveness for advanced communication applications. Additionally, to verify the suggested design, a patch antenna with a single element is created, and the 2x2 MIMO antenna is further refined to achieve circular polarization and enhanced performance by incorporating a U-shaped notch. © 2024 IEEE.

关键词： Microstrip antennas

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MonaLIGHT: broadband, non-coherent laser-based illumination designed for instrumentation and etendue restricted applications 19

MonaLIGHT: broadband, non-coherent laser-based illumination ...

引用

conference on Nonimaging Optics - Efficient Design for Illumination and Concentration xIx

作者： Kubat, Jan Philip, Olivier Pokorny, Martin Mazura, Martin CRYTUR Spol Sro Lukach 2283 Turnov 51101 Czech Republic CRYTUR USA 50 Hunt St Ste 303 Watertown MA 02472 USA

ISBN: (纸本)9781510679245;9781510679252

Description and implementation case study of low etendue, ultra-bright, and non-coherent laser-based light source (1150 lm, 8000 cd) built on a 5W blue LD and YAG based single crystal phosphor for high-efficiency technical applications. The recent development of a new laser-based light source offers enhanced performance and efficiency across various domains, notably in light microscopy, medical procedures, advanced industrial applications, and far-field illumination. This innovative source, with a directional and narrow angle beam, is characterized by its high luminous flux, an luminous intensity over 6000 cd and ability to localize its optical power outperforming existing LED technology by an order of magnitude. Constructed around a 5 W blue laser diode, laser based light source boasts a compact design and is highly amenable to seamless system integration. Designed explicitly for scientific, biotech, and machine vision applications, it showcases a remarkably low etendue, with 50% of its power concentrated within G < 0.4 ***. The proposed solution offers a significant increase in system efficiency and has the potential to substantially influence the layout of optical systems.

关键词： Laser based lighting system efficiency etendue fibre coupling

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Design and optimization of a high-precision distributed wireless sensor network for dynamic seismic wave data acquisition 4

Design and optimization of a high-precision distributed wire...

引用

4th International conference on Computer Technology, Information Engineering, and Electron Materials, CTIEEM 2024

作者： Shang, xiuchuan Zhu, Siqiao Fan, Hongqi Tian, Jianying Xi'an Electronic Engineering Research Shanxi Xi'an China National University of Defense Technology Hunan Changsha China

ISBN: (纸本)9781510689299

Traditional seismic wave data collection systems are primarily designed for high-energy, stable signal sources such as explosions and impacts. However, these systems struggle with low-energy, unstable dynamic sources, such as pedestrians and vehicles, and often lack the sampling rates needed for high-resolution dynamic target monitoring. To address these limitations, this paper presents a distributed wireless sensor network (WSN) for seismic wave data acquisition. The proposed system incorporates advanced wireless communication technology, supports a sampling frequency up to 96 kHz, and employs a 24-bit Sigma-Delta (Σ-Δ) ADC, enabling high-rate and remote-controlled data acquisition. Additionally, the system includes a user-friendly human-computer interaction interface, allowing real-time seismic waveforms observation and remote parameters adjustment. The overall design offers simplicity, high accuracy, and robust stability, related extensive experiments can demonstrate its significant practical value and promising application prospects. © 2025 SPIE.

关键词： Wireless sensor networks

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Adaptive blockage detection and prevention for radar chip-based autonomous driving systems 3

Adaptive blockage detection and prevention for radar chip-ba...

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3rd International conference on advanced Algorithms and Signal Image Processing, AASIP 2023

作者： Chen, Chao Dai, Mian Liu, Yuying Du, Juan Zhao, Shuai Huacheng Certificate CATARC Dongli Tianjin300399 China CICT CATARC Tianjin Xiqing300393 China ATIRI CATARC Tianjin Dongli300300 China

ISBN: (纸本)9781510668522

This paper presents an radar blockage recognition approach along with blindness prevention measures utilizing intelligent computing methods to address the challenges in radar chip-based autonomous driving systems. A process and algorithm are initially created for detection, enabling real-Time and precise identification. The adaptive blockage performance controller and the automatic diagnosis and recovery strategy are then proposed as part of the adaptive blockage prevention strategy, which enables the system to quickly return to its normal operating state by intelligently adjusting parameters when the sensor blockage occurs. The conventional linear threshold methods are replaced with nonlinear machine learning to deal with complex performance variations, with the aim of lowering false positives and negatives through real-Time optimization. A comparative experiment is conducted to show the effectiveness. © COPYRIGHT SPIE. Downloading of the abstract is permitted for personal use only.

关键词： Autonomous vehicles

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Integration of Collaborative Robots in Aerospace Manufacturing: Enhancing Precision and Safety through advanced sensor and Communication Technologies 12

Integration of Collaborative Robots in Aerospace Manufacturi...

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12th IEEE conference on systems, Process and Control, ICSPC 2024

作者： Aziz, Aiman Nabihah Abdul Yap, Hwa Jen Sekaran, Sivadas Chandra Ismail, Ahmad Humaizi Hisaburi, Ahmad Syazwan Mohd Tan, Chee Hau Kajang Malaysia Universiti Malaya Faculty of Engineering Dept.of Mechanical Engineering Kuala Lumpur Malaysia Spirit AeroSystems Malaysia Sdn Bhd Subang Jaya Malaysia

ISBN: (纸本)9798350391398

High-mix low-volume manufacturing industries like aerospace lag in the implementation of automation to improve their production rate while ensuring safety due to various reasons. This paper explores the possibility of integrating a collaborative robot into a precision drilling operation while addressing issues highlighted in the literature. This system incorporates a wide range of sensors including a force-torque sensor, camera and image processor, proximity sensor, LIDAR, and touch probes connected via multiple communication protocols for increased efficiency and safety. The system demonstrated the capability of achieving positioning accuracy within the specified tolerance of 0.2 mm for more than 90% of the holes along both the x- and Y-axes after the first correction cycle, while subsequent cycles show minimal improvements. The system is then further optimized for best efficiency and validated for safety against the unexpected presence of human drillers with the robot stopping within 0.1 seconds of human proximity. Despite the success of the experiment, several challenges due to robotic and system limitations were noted. This research was done to contribute to the development of an intelligent, data-centric robotic system for aerospace manufacturing with a focus on precision and safety. © 2024 IEEE.

关键词： Collaborative robots

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