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

共 16568 条记录，以下是841-850 订阅

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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...

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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...

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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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Intelligent WSN Localization using Multi-Linear Regression and a Mobile Anchor Node 13

Intelligent WSN Localization using Multi-Linear Regression a...

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13th International conference on Information and Communication systems (ICICS)

作者： Yaseen, Tuqa M. Bani Awad, Fahed H. Jordan Univ Sci & Technol Dept Network Engn & Secur Irbid Jordan

ISBN: (纸本)9781665480970

As the applications of Wireless sensor Network are increasingly associated with the rapidly growing field of the Internet of Things, resolving the problem of precisely locating sensor nodes has become a pressing need. As a result, several location identification methodologies have been proposed to address this need. This paper proposes a machine learning-based algorithm that allows the sensor node to identify its own location accurately using a single mobile anchor node. The mobile anchor node moves along a relatively short straight path, reducing the energy consumption associated with its movement as well as the total time needed to identify the locations of all sensor nodes. The proposed machine learning model is based on the Multi-Linear Regressing model and it is trained offline, reducing the burden on the resource-constraint sensor nodes. The performance evaluation results show that the proposed algorithm can achieve location identification accuracy of less than half a meter.

关键词： Wireless sensor Networks Location Identification Machine Learning Mobile Anchor Node Multi-Linear Regression

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IMPLEMENTATION OF TELECONTROL AND TELEMETRY systems IN ROBOTS FOR MONITORING IN ALL TERRAINS

IMPLEMENTATION OF TELECONTROL AND TELEMETRY SYSTEMS IN ROBOT...

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2024 IET International conference on Engineering Technologies and applications, ICETA 2024

作者： Achmadiah, Mas Nurul Sun, Chi-Chia Kuo, Wen-Kai Department of Electro-Optics National Formosa University Yunlin Taiwan Department of Electrical Engineering National Taipei University Taipei Taiwan Smart Manufacturing And Intelligent Machinery Research Center National Formosa University Taiwan

ISBN: (纸本)9781837242672

This paper presents a remotely controlled robot developed utilizing telemetry and telecontrol techniques that serves as a monitoring system. This robot can effectively send Attitude and Heading Reference System data and analyze the data using the Direction Cosine Matrix (DCM) approach to determine the robot's position by using an IMU (Inertial Measurement Unit) sensor. Additionally, equipped with an IP camera, this robot can show real-time streaming video based on its environmental conditions. This paper produces a robot that increases efficiency and effectiveness while helping people remotely do monitoring tasks. Based on the test results, position testing is conducted 0–5 meters away, and the average drift on the x-axis was 0.20707 meters and on the y-axis was 0.405 meters. At the same time, testing of the telecontrol and telemetry systems developed in this research worked smoothly at a distance of 20 meters with 100% data reliability quality. © The Institution of Engineering & Technology 2024.

关键词： Telemetering systems

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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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LWIR Multispectral Imaging using Plasmonic Filters integrated on a Single Thermal Image sensor

LWIR Multispectral Imaging using Plasmonic Filters integrate...

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SPIE conference on Future Sensing Technologies

作者： Shaik, Noor E. Karishma Widdicombe, Bryce Desai, Nandakishor Palaniswami, Marimuthu Nirmalathas, Ampalavanapillai Unnithan, Ranjith R. Univ Melbourne Elect & Elect Engn Parkville Vic 3010 Australia

ISBN: (纸本)9781510657229

Multispectral imaging involves capturing the same scene at different wavelengths using various narrowband filters stacked or integrated into digital camera sensors. This technology makes it possible to extract the additional information that a human eye or conventional camera fails to capture and thus has important applications in object identification, precision agriculture, and medicine. Multispectral imaging in visible wavelengths is readily possible due to the availability of digital imaging sensors and existing narrowband filter designs like metal-dielectric-metal films, dielectric films, or Fabry-Perot cavities [1-2]. Multispectral imaging in thermal longwave infrared (LWIR) wavelengths of 8-14 mu m range has more advanced applications as they can see through fire, detect various gases, and investigate materials non-destructively through thermal signatures. However, conventional thermal image sensors can image in a single spectral band only. Thermal multispectral imaging is hindered by traditional filter technology where many layers of different materials are required for obtaining various spectral bands and limited wavelength tunability. On-chip integration of the infrared filters on the thermal image sensors to build a compact multispectral thermal camera is still an emerging area [3-5]. In the current work, we design and demonstrate a low-cost single sensor-based multispectral thermal sensor system composed of copper-based plasmonic imaging filter mosaic (multiple spectral filters are fabricated on a single substrate using only one lithography step and two deposition steps) integrated into an uncooled monochrome thermal sensor. The proposed work is mass-fabricable, scalable, and integrable, thereby leveraging next-generation LWIR thermal snapshot multi- and hyperspectral imaging.

关键词： subwavelength photonics optical metasurfaces plasmonic filter design on-chip integration longwave infrared imaging thermal multispectral technology

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IoT-Based Security Detection for Cloud Web applications: Leveraging Internet of Things Approaches 1

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3rd International conference on Mechanical and Energy Technologies, ICMET 2023

作者： Sudhakar, A.V.V. Shweta, Shashwati Kumar, K. Suresh Dube, Anand Prakash Lakshmikanth, R. Sravan, Padala Department of EEE School of Engineering SR University Telangana Warangal India Tilak Maharashtra Vidyapeeth Vidyapeeth Bhavan Gultekdi Pune India MBA Department Panimalar Engineering College Varadarajapuram Poonamallee Chennai India Department of Computer Science School of Management Sciences Uttar Pradesh Varanasi India Department of Management Studies Adithya Institute of Technology Coimbatore Kovilpalayam India School of Computer Science and Artificial Intelligence SR University Telangana Warangal India

ISBN: (数字)9789819727162

ISBN: (纸本)9789819727155

The surge of Internet of Things (IoT) gadgets and cloud-based applications has been increasing the pressure to manage data reliability and security in digital space. This abstract presents examining new techniques for the detection of security among cloud web applications with the capabilities of IoT. Through the equipment of IoT devices, there will be the enhancement of real-time monitoring and detection of safety threats in cloud-based applications that are Internet-based. This synergy enables banks to have access to a variety of data sources, that is, both internal and external data. It makes the collection of large volumes of data possible, and so the banks have a good picture of the environment in which the application runs. With the use of machine learning and AI algorithms in the background, the existing anomalies and known potential vulnerabilities can be found fast, hence paving the way for proactive remediation of the present and future threats. Besides, the sensor through IoT can be utilised to measure physical security areas, which include environmental conditions and access control device integrity, and they make sure provision of security to cloud web applications. A single security architecture that utilises IoT and cloud technologies will allow the organisations to have robust defences, enhanced data protection, and a diminishing risk level, thus keeping the digital services in a trusted and dependable state in an always advanced threat environment. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2024.

关键词： Internet of things

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NANOCON 2023 - 15th International conference on Nanomaterials - Research and Application, conference Proceedings

NANOCON 2023 - 15th International Conference on Nanomaterial...

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15th International conference on Nanomaterials - Research and Application, NANOCON 2023

ISBN: (纸本)9788088365150

The proceedings contain 64 papers. The topics discuss include: quantum-mechanical study of internal structural transformations in Pb-supersaturated Pb-Sn alloys;investigation of bimetallic W/Cu nanoparticles produced by a gas aggregation source using a segmental target;surfactant-free silver nanofluids as liquid systems with neuromorphic potential;ring models of atoms and molecules with two opposite spins of proton and neutron rings;the use of benzoyl peroxide as an initiator to prepare PANI and CNT/PANI for thermoelectric applications;evaluation of inkjet printed heaters array for chemo-resistive gas sensor;mechanical processing of graphene oxide, its reduced form and biochar;magneto-optical properties of arrayed structures of cylindrical and elliptical quantum dots;and properties of nanocrystalline Fe-Ni particles prepared by thermal reduction of oxalate precursors.

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