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检索条件"任意字段=International Conference on Sensor Technologies and Applications, SensorComm"

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Hop-count Based Routing Protocols for Underwater Acoustic sensor Networks: A Survey 13

Hop-count Based Routing Protocols for Underwater Acoustic Se...

引用

13th international conference on Computing Communication and Networking technologies, ICCCNT 2022

作者： Kumar, Sahil Nazareth, Pradeep Chandavarkar, B.R. NITK Department of Computer Science & Engineering Mangalore India

ISBN: (数字)9781665452625

ISBN: (纸本)9781665452625

Underwater Acoustic sensor Networks (UASNs) is a prominent field in communications due to several applications. UASNs enable underwater data collection and monitoring in different applications. UASNs face several challenges like node mobility, low bandwidth, high energy consumption, and routing. The complexity of the underwater routing is increased due to node mobility. Several underwater routing protocols exist in the literature;they determine next-hop based on different criteria. Some criteria to select next-hop are link quality, residual energy, hop-count, etc. Many underwater routing protocols either use hop-count or hop-count as one of the criteria to choose next-hop. Such routing protocols result in lower hop-count, resulting in smaller end-to-end delays. These routing protocols are instrumental in the delay-sensitive applications where the end-to-end delay is the primary requirement. However, maintaining up-to-date information of the hop-count of nodes is one of the major challenges due to frequent changes in underwater topology caused due to the water current. This survey paper focuses on underwater routing protocols based on hop-count in selecting the next-hop. It focuses on updating hop-count information in various hop-count-based underwater routing protocols. © 2022 IEEE.

关键词： Routing protocols

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Tuning the coercivity of permanent magnets by the combined effect of field angle and defect thickness

Tuning the coercivity of permanent magnets by the combined e...

引用

2023 IEEE international Magnetic conference - Short Papers, INTERMAG Short Papers 2023

作者： Ali, Qais Fischbacher, Johann Kovacs, Alexander Oezelt, Harald Gusenbauer, Markus Schrefl, Thomas University for Continuing Education Krems Christian Doppler Laboratory for Magnet Design Through Physics Informed Machine Learning Wiener Neustadt Austria University for Continuing Education Krems Department for Integrated Sensor Systems Wiener Neustadt Austria

ISBN: (纸本)9798350338362

A combined effect of defect thickness and externally applied field angle is studied for physics based modelling of coercivity. A single cubic grain with intrinsic properties of Nd2Fe14 B surrounded by a soft magnetic defect is used. Finite element based micromagnetic modelling is used to compute coercivity and magnetic microstructural parameters. A novel magnetic reversal process is reported, which is primarily driven by defect thickness. This work provides implications for future work to design better grain boundary engineered permanent magnets for applications in green technologies. © 2023 IEEE.

关键词： Permanent magnets

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Threshold-Based Algorithm for Fall Detection Through an Inertial sensor Fixed at the Head 1

引用

8th international conference on Innovative technologies in Intelligent Systems and Industrial applications, CITISIA 2023

作者： Vistorte, Alejandro Companioni, Adriana Hernández, Fidel Travieso, Carlos Technological University of Havana Cujae Havana Cuba University of Las Palmas de Gran Canaria Las Palmas de Gran Canaria Spain

ISBN: (数字)9783031717734

ISBN: (纸本)9783031717727

This work was focused on developing a low-cost, effective and reliable algorithm to be applied on fall detection through the analysis of data provided by an Inertial Measurement Unit attached at the head. In order to achieve this goal, trends of the acceleration vector variance were analyzed for the case of fall and no fall conditions, and such a feature, together with the time at which this feature remained above certain threshold, were the key points used for assessing whether a fall had happened or not. A public dataset, which included different types of falls and daily activities, was used for algorithm validation. The algorithm parameters (thresholds) were adjusted to achieve the highest Recall value. Accordingly, values of Precision, Recall, Specificity and Accuracy equal to 92.8%, 98.7%, 90.4%, and 95.0%, respectively, were obtained. © The Author(s), under exclusive license to Springer Nature Switzerland AG 2024.

关键词： Fall detection IMU Thresholds Variance

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A Novel Phase Demodulation Method and Simulation for Fiber-Optic Distributed Acoustic sensor 29th

A Novel Phase Demodulation Method and Simulation for Fiber-O...

引用

29th international conference on Computational and Experimental Engineering and Sciences, ICCES 2023

作者： Yang, Sufan Zhang, Chunxi Wang, Xiaxiao School of Instrumentation and Optoelectronic Engineering Beihang University Beijing100191 China Institute of Optics and Electronics Technologies Beihang University Beijing100191 China Shenyuan Honors College Beihang University Beijing100191 China

ISBN: (纸本)9783031425141

Fiber-optic distributed acoustic sensors (DASs) can be used for various applications, such as seismic wave detection, geological exploration, and large-scale structural health monitoring. Phase-sensitive optical time-domain reflectometer (Φ-OTDR) is one of DAS’s most common technical schemes. In this paper, a novel phase demodulation method for DAS is proposed. In this proposed method, four pairs of probing pulses are used to construct in-phase and quadrature (IQ) components for phase demodulation. Compared to the conventional quadrature demodulation method, this method simplifies the system. The scaler model of Φ-OTDR and phase demodulation algorithm are revealed in theory and simulation. Simulations confirm the validity of the proposed method. The demonstrated phase demodulation method achieves ~ 80 dB of SNR, capable of vibroacoustic perturbations along the same line. It has good potential in low-cost and long-distance health structural health monitoring. © 2024, The Author(s), under exclusive license to Springer Nature Switzerland AG.

关键词： Structural health monitoring

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A 1000 fps Spiking Neural Network Tracking Algorithm for On-Chip Processing of Dynamic Vision sensor Data

A 1000 fps Spiking Neural Network Tracking Algorithm for On-...

引用

2022 IEEE international conference on Integrated Circuits, technologies and applications, ICTA 2022

作者： Zhang, Chi Kang, Lei Yang, Xu Guo, Guanghao Feng, Peng Yu, Shuangming Liu, Liyuan Institute of Semiconductors Chinese Academy of Sciences State Key Laboratory of Superlattices and Microstructures China University of Chinese Academy of Sciences Center of Materials Science and Optoelectronics Engineering China

ISBN: (数字)9781665492690

ISBN: (纸本)9781665492690

Dynamic vision sensor (DVS), an event-based camera, has attracted significant attention due to its unique characteristics. Unlike frame-based cameras, the data format of DVS makes it difficult for traditional algorithms to process it directly. On the other hand, as a new type of brain-like neural network, the spiking neural network is specially used to process spiking data, and it is well suited for this type of event-based camera. In addition, because of the rapid development of neuromorphic hardware in recent years, it is possible to deploy SNN applications on edge-side system-on-chip. Therefore, based on the characteristics of dynamic vision sensors, this paper designs a spike encoding module and an SNN for processing sensor information. We use selective search to accomplish object tracking by classifying targets and backgrounds. The SNN can achieve 98.66% classification accuracy on our synthetic test dataset, and the tracking algorithm can achieve over 1000 fps after quantizing and compiling the network to the hardware simulator. © 2022 IEEE.

关键词： Neural networks

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A Novel Ultra-Wide Band Hybrid Antenna sensor for WBAN applications 1

A Novel Ultra-Wide Band Hybrid Antenna Sensor for WBAN Appli...

引用

1st international conference on Smart and Sustainable technologies in Energy and Power Sectors, SSTEPS 2022

作者： Vasisht, Parikshit Parashar, Taruna Ranjan, Sudhakar Kathait, Atul Chandra, Ravi Chattoraj, Neela Apeejay Stya University SOET Gurugram India J.C. Bose University of Science and Technology YMCA Department of Electronics and Communication Engineering Faridabad India BIT MESRA Department of Electronics and Communication Engineering Ranchi India

ISBN: (纸本)9781665464147

A novel, hybrid and miniaturized sensor element design for WBAN is proposed in this manuscript. In this letter, hybridisation of circular ring shape micro strip patch is done with rectangular dielectric resonator in order to achieve ultra-wide bandwidth of 9.1 GHz. Introduction of defected ground structure (DGS) excites multiple higher order modes. Amalgamation of these multiple mode resonances, generate an impedance bandwidth of 95%. The proposed design yields a resonating bandwidth of 9.1 GHz (5-14.1 GHz) with an average radiation efficiency of 90%. Peak gain of 5.1dBi is obtained in entire operating bandwidth. Antenna is designed and simulated using FDTD method and is proved to be an ardent candidate for On body WBAN technologies due to its high gain, compact size with wide impedance bandwidth. The comparison of steady and simulated results shows a good agreement with antenna. © 2022 IEEE.

关键词： Defected ground structures

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Ultra-Compact Fiber Refractive Index Probe Based on 3D Printed Fiber-Tip Dual-Ring Interferometer

Ultra-Compact Fiber Refractive Index Probe Based on 3D Print...

引用

2023 Asia Communications and Photonics conference/2023 international Photonics and Optoelectronics Meetings, ACP/POEM 2023

作者： Liu, Jing Yao, Yucheng Zhao, Zhiyong Yan, Jie Xiao, Xi Tang, Ming School of Optical and Electronic Information Huazhong University of Science and Technology Wuhan National Laboratory for Optoelectronics Wuhan China China Information and Communication Technologies Group Corporation National Information Optoelectronics Innovation Center Wuhan430074 China

ISBN: (纸本)9798350312614

We proposed a novel ultra-compact fiber refractive index (RI) probe based on a dual-ring Mach-Zehnder interferometer (MZI). The sensor was directly 3D printed on the fiber tip using femtosecond laser induced two-photon polymerization (TPP) technology. Up to 17 dB fringe contrast with sharp resonance dip is achieved, which ensures high measurement resolution. In addition, thanks to the very thin diameter of the fabricated ring waveguides, large evanescent field will be generated around the waveguides, which will contribute to a strong interaction between the transmitting light and the surrounding matter. As a result, up to 868.1nm/RIU refractive index sensitivity is obtained within the refractive index range of 1.33-1.357. The proposed ultra-compact refractive index probe sensor offers great potential for applications in the biochemical field. © 2023 IEEE.

关键词： Femtosecond laser Mach-Zehnder interferometer two-photon polymerization

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Development of Real-Time sensor Network for Characterization of Pyrolysis Oil from Waste Tires 6

Development of Real-Time Sensor Network for Characterization...

引用

6th international conference on Electrical, Control and Instrumentation Engineering, ICECIE 2024

作者： Aranda, Jonalyn Mae E. Lazana, Cristian S. Master of Science in Engineering - Specialized in Electronics Engineering Polytechnic University of the Philippines Technological University of the Philippines Manila Philippines Master of Science in Electronics Engineering Polytechnic University of the Philippines De La Salle University Manila Philippines

ISBN: (纸本)9798350380040

Pyrolysis, a viable method for producing valuable products like tire pyrolytic oil, addressing the environmental problems associated with the improper disposal of used tires. However, additional refinement is necessary to extract lighter fractions of the oil, which have higher economic value. This study focuses on the design and development of a small-scale atmospheric distillation system specifically engineered to characterize pyrolytic oil from waste tires. The system is designed to separate the lighter fractions of tire pyrolytic oil and analyze the distilled oil in accordance with ASTM standards, while also conducting physical and spectral characterization using a real-time sensor network. The real-time sensor network, which controls the system for characterizing tire pyrolytic oil, maintains precise temperature control within the 30-60°C range. It uses gravitydriven fluid movement, eliminating the need for mechanical pumps. Key parameters like density, pH level, and water content are carefully monitored and displayed on both a control panel and mobile devices. With the use of advanced sensors and calibration methods, the system ensures accurate measurements, addressing limitations found in existing technologies. The data collected during the oil characterization were compared with results from a standard testing laboratory in the Philippines accredited by the Department of Energy (DOE) using ASTM standards. These comparisons highlight the system's effectiveness in improving the reliability and usability of tire pyrolytic oil for various industrial applications. This innovative approach provides a cost-effective and efficient solution for refining tire pyrolytic oil and characterizing its physical and spectral properties, underscoring its significant potential for industrial use. © 2024 IEEE.

关键词： ASTM standards

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Mapping the Environment Using an Ultrasonic and Infrared sensor

Mapping the Environment Using an Ultrasonic and Infrared Sen...

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international conference on Emerging eLearning technologies and applications (ICETA)

作者： K. Pribilová D. Gabriska Z. Mäsiarova Institute of Computer Technologies and Informatics University of SS. Cyril and Methodius Trnava Slovakia

This paper is focused on an environment mapping application using Lego Mindstorms. The main goal is to create a program for a robot that will be able to solve problems of movement and mapping in an unknown environment. We chose Java and the Eclipse programming environment as the programming language. Simple mazes in the shape of a rectangle and the letters C were created for the mapping of the environment by the robot. We used an ultrasonic and infrared sensor for sensing the environment. In the end, we present a comparison and the results of measurements of both sensors when mapping the environment.

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A Comprehensive Study of Solar Energy Harvesting System in Wireless sensor Networks 9

A Comprehensive Study of Solar Energy Harvesting System in W...

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9th IEEE Uttar Pradesh Section international conference on Electrical, Electronics and Computer Engineering, UPCON 2022

作者： Sah, Dipak Kumar Mazumdar, Nabajyoti Pal, Pankaj Amgoth, Tarachand Dept. of Computer Science & Engineering Dhanbad826004 India Indian Institute of Information Technology Dept. of Information Technology Allahabad211015 India

ISBN: (数字)9798350332506

ISBN: (纸本)9798350332506

Wireless sensor Networks (WSNs) incorporate sensor nodes with minimal power consumption. sensor devices are in high demand in many areas, including smart cities, environmental monitoring, the Internet of Things (IoT), health monitoring, and the like. As nodes are frequently located in remote places, and an ordinary node battery life is too short, energy depletion is a significant problem for the sensor network. But it's not practical to change or regularly maintain the sensor node's battery. This could cause the network to disconnect. Consequently, a recharging sensor node battery has been identified using energy harvesting (EH). It has several environmental forms, including solar, wind, mechanical, etc. The solar system provides unlimited energy resources to nodes. This paper examines a comprehensive case study of solar harvesting systems and their most recent applications. In solar harvesting nodes, the following primary components are utilised: solar panels, energy storage classes, a DC-DC converter, maximum power point tracking (MPPT), an energy predictor, and a sensing module. Furthermore, we have discussed some recent applications and future work of sensor networks, for example, green street lights, agriculture 4.0, outdoor environment-based monitoring, IIoT, hybrid storage class and new communication technologies. © 2022 IEEE.

关键词： sensor nodes

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