检索结果-内蒙古大学图书馆

Periodica polytechnica electrical engineering and computer science 2023年第4期67卷 384-393页

作者： Gyenes, Zoltán Bölöni, Ladislau Szádeczky-Kardoss, Emese Gincsainé Department of Control Engineering and Information Technology Faculty of Electrical Engineering and Informatics Budapest University of Technology and Economics Muegyetem rkp. 3. BudapestH-1111 Hungary Department of Computer Science University of Central Florida 4328 Scorpius St OrlandoFL32816-2362 United States

The present study aims to explore the adaptation of estimation methodologies, specifically Particle filters and Kalman filters, for the purpose of determining the position and velocity vector of obstacles within the operational workspace of mobile robots. These algorithms are commonly employed in the motion planning tasks of mobile robots for the estimation of their own position. The proposed methodology utilizes LiDAR sensor data to estimate the position vectors and calculate the velocity vectors of obstacles. Additionally, an uncertainty parameter can be determined using the introduced perception method. The performance of the newly adapted algorithms is evaluated through comparison of the absolute error in position and velocity vector estimations. © 2023 Budapest University of Technology and Economics. All rights reserved.

关键词： Mobile robots

来源：评论

学校读者我要写书评

暂无评论

TCIP: Transformed Colour Intensity Profiles analysis for fault detection in power line insulators

引用

Multimedia Tools and Applications 2025年第8期84卷 4503-4534页

作者： Tomaszewski, Michal Gasz, Rafal Kasana, Singara Singh Osuchowski, Jakub Singh, Simranjit Zator, Slawomir Department of Computer Science Faculty of Electrical Engineering Automatic Control and Informatics Opole University of Technology Prószkowska 76 Opole45-758 Poland Department of Computer Science and Information Technology Central University of Haryana Haryana Mahendergarh123031 India Department of Information Technology Dr B. R. Ambedkar National Institute of Technology Punjab Jalandhar India Department of Safety Engineering and Technical Systems Faculty of Production Engineering and Logistics Opole University of Technology Prószkowska 76 Opole45-758 Poland

In response to the escalating demand for electricity, the aging process and inherent failures in power lines have become unavoidable challenges in their operational integrity. This research addresses the imperative need for a robust method to detect damage in power insulator disc images, introducing a novel feature extraction technique grounded in color intensity profile transformation and ensemble learning. For the purposes of the research, a specific dataset was developed based on publicly available images of power insulators. The collection consists of 9232 images of insulator discs which included 2184 images of damaged discs. The discernible damages include breakages and burnouts. Two distinct analysis variants were employed. In the first variant (V1), two classification groups were selected: disc with damages and disc without damages. In the second variant (V2), three classification groups were selected: discs without damage, broken discs, and burnout discs. The described research was divided into two successive stages. In the first of them (S1), the transformed color intensity profiles for the prepared data set were built and various machine learning models for their classification were trained and evaluated. In the next stage (S2), previously developed, highest efficient machine learning models, were used to make the detection of various damaged types of overhead line insulator discs. For the first stage of research high-performance results and a high value of the F1 score parameters were obtained (F1 score = 0.999 for the first variant (S1V1) and F1 score = 0.992 for the second variant (S1V2). In the second stage of research and the first variant (S2V1), the highest result of the F1 score was 0.932 and for the second variant (S2V2) F1 score was 0.930. © The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature 2024.

关键词： Feature extraction

来源：评论

学校读者我要写书评

暂无评论

Triple Parallel LSTM Networks for Classifying the Gait Disorders Using Kinect Camera and Robot Platform During the Clinical Examination

Triple Parallel LSTM Networks for Classifying the Gait Disor...

引用

electrical, Computer, Communications and Mechatronics engineering (ICECCME), International Conference on

作者： Mohsen Shayestegan Tomas Zalabsky Jan Mareš Faculty of Electrical Engineering and Informatics University of Pardubice Pardubice Czech Republic Faculty of Electrical Engineering and Informatics Research Center University of Pardubice Pardubice Czech Republic Department of Process Control Faculty of Electrical Engineering and Informatics University of Pardubice Pardubice Czech Republic

This paper presents a new methodology for the data processing and classification method for gait disorders, which is observed with a Kinect camera. The study of gait and motion stability in gait disorders is one of the most interesting research areas in the field. The patient and the physician must monitor the progress of the rehabilitation process before and after surgery to obtain an objective view of the rehabilitation process. In this study, the patient is scanned with the Kinect camera placed on a mobile robotic platform. For feature extraction and feature analysis, the exercises (three walking exercises) frames are collected and saved in data folders. This study uses 84 measurements of 37 patients with complex observations based on the physician's opinion in a clinical setting to address classification problems. In the analysis of gait disorders, motion data play an essential role. Furthermore, it reduces the selection of helpful body features for assessing gait disorders. The proposed system uses a key-point detector that computes body landmarks and classifies gait disorders using triple-parallel long short-term memory (LSTM) networks. The present study demonstrates the success of the method in classification evaluation when combined with the state-of-the-art pose estimation method. Around 81 percent accuracy was achieved for given sets of individuals using velocity-based, angle-based, and position-based features.

关键词：

来源：评论

学校读者我要写书评

暂无评论

EOG acquisition system based on ATmega AVR microcontroller

引用

Journal of Ambient Intelligence and Humanized Computing 2023年第12期14卷 16589-16605页

作者： Abdel-Samei, Abdel-Gawad A. Shaaban, Abdel-Salam Brisha, Ayman M. El-Samie, Fathi E. Abd Ali, Ahmed S. Department of Electronics Technology Faculty of Technology and Education Beni-Suef University Beni-Suef Egypt Department of Process of Control Technology Faculty of Technology and Education Beni-Suef University Beni-Suef Egypt Department of Mechanical Engineering Mechatronics Division Faculty of Engineering Assiut University Assiut Egypt Department of Electronics and Electrical Communications Engineering Faculty of Electronic Engineering Menoufia University Menouf Egypt Department of Information Technology College of Computer and Information Sciences Princess Nourah Bint Abdulrahman University P.O. Box 84428 Riyadh11671 Saudi Arabia

This paper presents a hardware and software of an electrooculogram (EOG) acquisition system based on ATmega AVR microcontroller for the acquisition of vertical and horizontal eye movements. The presented system is used to acquire a dataset of eye movements for volunteers. This system gives two channels representing vertical and horizontal EOG signals. The frequency range of the EOG signal is known to be 0.1 to 10 Hz, and hence this frequency range is isolated with a High-Pass Filter (HPF) with a cutoff frequency of 0.1 Hz followed by a Low-Pass Filter (LPF) with a cutoff frequency of 10 Hz. The EOG acquisition system is interfaced with an ATmega AVR microcontroller to acquire a dataset that can be used for controlling hardware such as Light Emitting Diodes (LEDs), wheelchair, and robot arm. The presented system is composed of EOG signal acquisition, Ag/AgCl electrodes, analog-to-digital converter through Arduino Mega 2560 board microcontroller unit, trainer board, laptop, keypad, and Liquid Crystal Display (LCD). The eye movement is detected by measuring the potential difference between cornea and retina using five Ag–Agcl disposable electrodes. Different volunteers of different ages at different times have been treated with the presented system to obtain data. Classified vertical and horizontal EOG signals and the basic eye movements e.g., open eye, left, right, up, and down can be used to control robots and wheelchairs for rehabilitation purposes. © 2023, The Author(s).

关键词： Electrodes

来源：评论

学校读者我要写书评

暂无评论

Numerical Simulation of 3D Printed Resin Droplet-Based Microfluidic Device with T-Junction Geometry 8

Numerical Simulation of 3D Printed Resin Droplet-Based Micro...

引用

8th International Conference on Instrumentation, control, and Automation, ICA 2023

作者： Sarwono, Febricetta Zahraketzia Azhar Fa'Iq, Muhammad Anshori, Isa Putra, Narendra Kurnia Institut Teknologi Bandung Faculty of Industrial Technology Engineering Physics Department Bandung Indonesia Institut Teknologi Bandung School of Electrical Engineering and Informatics Biomedical Engineering Department Bandung Indonesia Institut Teknologi Bandung Instrumentation and Control Research Group Faculty of Industrial Technology Bandung Indonesia

ISBN: (纸本)9798350301274

Droplet-based microfluidics is a device that can process fluids on a micro-scale to be broken down into uniform droplets at a relatively fast rate. The droplet forming process can be done in a T-junction droplet-based microfluidics configuration where a dispersed fluid is injected into a continuous fluid flow to produce dispersed fluid droplets. In general, droplet-based microfluidics research is done using experimental tests which are limited in empirical observation, especially for mass production cases where an optimized design is needed. In this study, a numerical simulation was carried out to replicate the droplet generation in the droplet-based microfluidic device based on three-dimensional (3D) printed resin T-junction geometric scheme. Numerical simulation was carried out in a two-dimensional (2D) simulation using the level-set method (LSM) based on the finite element method (FEM) using computational fluid dynamics (CFD) tools for two-phase flow. Water is used as the dispersed fluid, and silicone oil 350 cp is used as the continuous fluid streamed into microfluidic channels with a height of 0.5 mm and a flow rate of 2.5 ml/hr. This study provides the influence of physical parameters such as the shear stress, pressure, and velocity profile which are evaluated at an evaluation point which directly affects the formation of droplets due to the interaction between two immiscible fluids. In addition, suggestions for future droplet generation simulations in microfluidics simulations are also obtained. © 2023 IEEE.

关键词： Microfluidics

来源：评论

学校读者我要写书评

暂无评论

Enhancing Circular Economy Using Expert Systems 7th

Enhancing Circular Economy Using Expert Systems

引用

7th EAI International Conference on Future Access Enablers of Ubiquitous and Intelligent Infrastructures, EAI FABULOUS 2023

作者： Knapčíková, Lucia Behúnová, Annamária Husár, Jozef Tauberová, Rebeka Martiček, Matúš Faculty of Manufacturing Technologies with a Seat in Prešov Department of Industrial Engineering and Informatics The Technical University of Košice Bayerova 1 Prešov080 01 Slovakia Faculty of Mining Ecology Process Control and Geotechnologies Institute of Earth Resources Technical University of Kosice Letna 9 Kosice04200 Slovakia

ISBN: (纸本)9783031500503

An important measure of the success of the expert system’s implementation is its users’ acceptance. An expert system doesn’t have to provide very good conclusions when its use is very complex and time-consuming both in learning and in use. From the user’s point of view, it is important that working with the system is easy and easy to understand. It is appropriate for the system to be able to correct the most common user errors. It is necessary to note that expert systems can also be used for training new experts when workers are familiarized with evaluating input data and the possible conclusions that may result from them with the help of the explanatory mechanism of the system. We cannot get complete information to solve most problems. It remains only to fill in the information data gaps while considering the possibility of error. During processing, the effects of stored knowledge and probabilities are combined. In the post, the main problem was the determined amount of tyres provided to each driver for the race. The work deals with t collecting and processing data on the climate, the type of circuit and the subsequent use of this data in motorsport to reduce the number of tyres provided for the benefit of expert systems. © ICST Institute for Computer Sciences, Social informatics and Telecommunications engineering 2024.

关键词： Expert Systems Industry IoT Monitoring Tyres

来源：评论

学校读者我要写书评

暂无评论

Adaptive Obstacle Avoidance of UAV Leader/Followers with Nonlinear Logarithm Quaternion control

Adaptive Obstacle Avoidance of UAV Leader/Followers with Non...

引用

International Conference on Methods and Models in Automation and Robotics (MMAR)

作者： Huda Naji Al-Sudany Béla Lantos Department of Control Engineering and Information Technology Faculty of Electrical Engineering and Informatics Budapest University of Technology and Economics Budapest Hungary

ISBN: (数字)9798350362343

ISBN: (纸本)9798350362350

This paper addresses a significant challenge within the realm of fixed wing Unmanned Aerial Vehicles (UAVs), namely obstacle avoidance of the Leader-Follower system. The proposed approach involves formulating the Leader-Follower problem, consisting of one leader and three followers, with control strategies utilizing the logarithm exponential Quaternion method. Subsequently, the designed control law employing quaternions is applied to both the leader and the follower UAVs. Moreover, a notable contribution of this research lies in the incorporation of adaptive obstacle avoidance. The idea based on potential field as obstacle avoidance algorithm, with adaptive techniques for determining obstacle avoidance parameters. These parameters are dynamically adjusted based on the distance between the UAV and the obstacle through a non-linear adaptation function. The comprehensive implementation of these methods is rigorously evaluated by employing a predefined reference path for the leader and conducting numerous scenario-based tests. Random directions of followers were used in case of stuck in local minimum to avoid it; this was applied in case when potential filed force is less than small value. Experiments to test some scenarios of obstacle avoidance were conducted. The final results conclusively demonstrate the stability of the control law even in the presence of obstacles. The effectiveness of the adaptive obstacle avoidance approach is clearly evident from the trajectories of the UAV followers.

关键词： Adaptation models Automation Quaternions Heuristic algorithms Force Autonomous aerial vehicles Stability analysis

来源：评论

学校读者我要写书评

暂无评论

A Sparse Quadratic Programming Approach to Supervisory control of Multi-Zone HVAC Systems with Consideration of Peak Demand Shaving and Thermal Comfort

A Sparse Quadratic Programming Approach to Supervisory Contr...

引用

International Conference on electrical engineering/Electronics, Computer, Telecommunications and Information Technology, ECTI-CON

作者： Pasitnat Sasananand David Banjerdpongchai Department of Electrical Engineering Faculty of Engineering Center of Excellence in Intelligent Control Automation for Process Systems Chulalongkorn University Bangkok Thailand

ISBN: (数字)9798350381559

ISBN: (纸本)9798350381566

The HVAC system is one of the major power consuming equipment in buildings. Considering the effective setpoint temperature of each zone can increase efficiency in managing power usage in buildings, leading to the operating cost reduction. This paper presents the design of supervisory control (SC) for multi-zone HVAC systems that aims to minimize the total operating cost (TOC) and the thermal comfort cost (TCC). To minimize the TOC and TCC, both objectives are normalized and combined as a quadratic programming (QP) problem which can be efficiently solved. To achieve the design objective, two methods of SC are developed for multi-zone, namely, centralized SC and decentralized SC. We apply standard QP and sparse QP solvers using interior point method. The numerical results reveal that centralized SC performs better according to a tradeoff curve which TOC and TCC are lower. While both solvers give the same results, sparse solver can provide the solutions faster than interior point method. This paper demonstrates that centralized control is appropriate for implementation in multi-zones buildings and the sparse solver proves to be more suitable in the context of sparse QP problem.

关键词： HVAC Costs Buildings Supervisory control Telecommunications Quadratic programming Sparse matrices

来源：评论

学校读者我要写书评

暂无评论

Educational process of Employees Supported by Augmented Reality 22

Educational Process of Employees Supported by Augmented Real...

引用

22nd International Conference on Emerging eLearning Technologies and Applications, ICETA 2024

作者： Knapčíková, L. Behúnová, A. Martiček, M. Tauberová, R. Strametz, D. Abdul-Hadi, M. Technical University of Košice Faculty of Manufacturing Technologies with A Seat in Prešov Department of Industrial Engineering and Informatics Prešov Slovakia Technical University of Košice Faculty of Mining Ecology Process Control and Geotechnologies Institute of Earth Resources Slovakia Institute of Production Engineering TU Graz Faculty of Mechanical Engineering and Economic Sciences Austria Pro2Future GmbH. Graz Austria

ISBN: (纸本)9798331527716

Augmented reality technology is currently experiencing a significant surge. The potential of AR is immense, and while it may not be as ubiquitous as smartphones, it is rapidly gaining ground. The past decade has seen a remarkable expansion of AR applications, with many industries already leveraging its capabilities. The use of AR is not limited to a few areas but is expanding across various fields, from science to marketing to art. This adaptability across diverse fields reassures us that AR is not just a passing trend but a technology with wide-ranging applications. However, in most of these industries, AR is often only at a theoretical level in development. The use of augmented reality is increasingly important in the production process. With rapid digital transformation and the introduction of Industry 4.0, the company's leadership must find new ways to optimise its processes and increase production efficiency. © 2024 IEEE.

关键词： Industry 4.0

来源：评论

学校读者我要写书评

暂无评论

Smart Approaches by Online Monitoring in Transportation 9th

Smart Approaches by Online Monitoring in Transportation

引用

9th International Conference on Mobility, IoT and Smart Cities, EAI Mobility IoT 2022

作者： Knapčíková, Lucia Behúnova, Annamária Husár, Jozef Tauberová, Rebeka The Technical University of Košice Faculty of Manufacturing Technologies with a seat in Prešov Department of Industrial Engineering and Informatics Prešov Slovakia Technical University of Košice Faculty of Mining Ecology Process Control and Geotechnologies Institute of Earth Resources Košice Slovakia

ISBN: (纸本)9783031282249

Current trends in the transport industry, in the area of computerization and digitalization, are the use of intelligent sensors for the control of wagons, the control of railway lines, and the automatic control of trains. Emerging solutions seek to combine biometric information, artificial intelligence (UI), and cloud computing. For train operators and railway companies, Internet of Things (IoT) devices enable the implementation of predictive maintenance to monitor any anomalies. Support for developing intelligent systems and their complex solutions is based on information and communication systems and technologies in transport. It is oriented toward the use of a unified system environment for the collection, processing, sharing, distribution, and use of traffic information in specific information and control applications. The paper deals with the possibilities of online control and the use of intelligent sensors in the measurement and control of various load-bearing and driving rotating chassis. © 2023, The Author(s), under exclusive license to Springer Nature Switzerland AG.

关键词： Intelligent systems

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：