检索结果-内蒙古大学图书馆

5th International Conference on Data Science and Information Technology, DSIT 2022

作者： Wang, Rui Wang, Songhao School of Mechanical Engineering and Automation Harbin Institute of Technology Shenzhen China Southern University of Science and Technology Department of Information Systems and Management Engineering Shenzhen China

ISBN: (数字)9781665498685

ISBN: (纸本)9781665498685

In semiconductor manufactuing, wafer bin maps (WBMs) with specific defect patterns provide valuable information on the root causes of process abnormality. The identification of these patterns is thus of crucial importance for yield enhancement and quality improvement. Existing studies have made great efforts to automatically classify the WBMs into predefined patterns. However, rarely occurred and mixed-type defect patterns are also generated due to the increasing complexity of the manufacturing processes. In this case, the conventional classification based method has its limitations. to solve this problem, this study aims to develop a novel approach to search similar WBMs for the identification of defect patterns and their potential causes. Tensor voting, which is a perceptual grouping approach, is considered to extract structural information from the spatial patterns. The modified best-buddies similarity (BBS) is applied to measure the similarity level. Experimental results demonstrate the effectiveness of the proposed approach in the similarity searching and identification of defect patterns. © 2022 IEEE.

关键词： Defects

来源：评论

学校读者我要写书评

暂无评论

Non-Destructive Diagnostics System for Defect Detection in Metal Parts of Powerful Generators Using Eddy Current Sensor 5

Non-Destructive Diagnostics System for Defect Detection in M...

引用

5th IEEE International Conference on Modern Electrical and Energy System, MEES 2023

作者： Abramovych, Anton Zaitsev, Ievgen Piddubnyi, Volodymyr Bazhenov, Victor National Technical University of Ukraine Igor Sikorsky Kyiv Polytechnic Institute Department of Radio Engineering Systems Kyiv Ukraine Ied Nanu Department of the Teoretical Electrical Engineering and Diagnostic of Electrical Equipment Department №12 The Institute of Electrodynamics of the Nas of Ukraine Kiev Ukraine National Technical University of Ukraine Igor Sikorsky Kyiv Polytechnic Institute Department of Automation and Non-Destructive Testing Systems Ukraine

ISBN: (纸本)9798350359787

The eddy current method of control is analyzed and the possibility of its use for the identification of metals and alloys is substantiated. It is shown that this can be done by modernizing the eddy current radio engineering system with dynamic scanning of metal samples, which consists in the use of modern microcontrollers with high-precision ADC operation. The structural scheme of the modernized system is presented, some aspects of the processing of the received response signal are considered, which made it possible to highlight the information coefficients that would represent the metal or alloy as a generalized image. It is proposed to use the developed control system for the inverse problem - detection of defective zones on rolled metal sheets. The process of identifying the type of defect is carried out using the same methods as for spot samples of metals. The application of automation of the movement of the sensor during the control of rolled metal allows to identify metals and alloys in real time, to carry out express control, without human intervention in the identification process. © 2023 IEEE.

关键词： Microcontrollers

来源：评论

学校读者我要写书评

暂无评论

Asynchronous State Estimator Design for Markov Switched systems with Incomplete Probabilities and Redundant Channels 42

Asynchronous State Estimator Design for Markov Switched Syst...

引用

42nd Chinese control Conference, CCC 2023

作者： Chen, Haiyang Gao, Fangzheng Mao, Xueyi School of Control Science and Engineering Tiangong University Tianjin300387 China School of Automation Nanjing Institute of Technology Nanjing211167 China Nanjing Communications Institute of Technology Publicity Department Nanjing211188 China

ISBN: (纸本)9789887581543

This paper is concerned about the H∞ asynchronous state estimator design for Markov switched systems (MSSs) with incomplete transition probabilities and redundant channels. A hidden Markov chain (HMC) is introduced to characterize the asynchronous degree between the state estimator mode and the system mode. Firstly an asynchronous full-order state estimator is devised for the MSSs. Then, by Lyapunov functional and stochastic analysis, new criteria are derived such that the augmented system consisting of the target system and state estimator is H∞ stochastically finite-time boundedness. After that, with matrix decoupling technique, a design algorithm is obtained in form of linear matrix inequalities (LMIs). Finally, the practical one-link robotic manipulator is utilized to validate the developed results. © 2023 Technical Committee on control Theory, Chinese Association of automation.

关键词： Linear matrix inequalities

来源：评论

学校读者我要写书评

暂无评论

Synchronous control of H-type Linear Motor System via Super-Twisting Sliding Mode

Synchronous Control of H-type Linear Motor System via Super-...

引用

Chinese automation Congress (CAC)

作者： Jiawei Liu Xiaolei Li Feilong Tang Qixin Kui Miodrag D. Spasic Department of Control Science and Engineering Harbin Institute of Technology Harbin China Department of Control Systems Faculty of Electronic Engineering University of Niš Niš Serbia

ISBN: (数字)9798350368604

ISBN: (纸本)9798350368611

In this paper, a synchronous control strategy based on super-twisting sliding mode algorithm is proposed to enhance the tracking accuracy and robustness of H-type linear motor systems. Such systems are widely utilized in precision manufacturing owing to their high precision and fast response. Firstly, the dynamic model is established based on the coupling dynamics analysis of the H-type system. Secondly, a supertwisting sliding mode controller (STSMC) with linear terms is designed, which effectively reduces the chattering associated with conventional sliding mode control, while maintaining good robustness. Thirdly, a super-twisting extended state observer (STESO) is introduced to handle large fluctuations in the early estimation process of linear extended state observer (LESO), so as to effectively observe and compensate the uncertainties and external disturbances. Finally, experimental results demonstrate that the STESO-based STSMC greatly improves the anti-disturbance ability and tracking accuracy of the H-type system.

关键词： Robust control Analytical models Accuracy Uncertainty Motors Robustness PD control State estimation Sliding mode control Time-varying systems

来源：评论

学校读者我要写书评

暂无评论

Plant Disease Detection Using Machine Learning

Plant Disease Detection Using Machine Learning

引用

Intelligent Technologies (CONIT), International Conference on

作者： Amit Kumar Parida Albert Alexander Stonier Department of Control and Automation School of Electrical Engineering VIT University Vellore School of Electrical Engineering Vellore Institute of Technology Vellore

ISBN: (数字)9798350349900

ISBN: (纸本)9798350349917

Plant diseases are a serious threat toworld agriculture, resulting in lower agricultural yields and financial losses. This study examines how machine learning methods could revolutionize the identification of plant diseases. The shortcomings of conventional approaches and suggest combining machine learning models with cutting-edge imaging and data processing technologies to improve the diagnosis’s speed and precision. This research demonstrates how well machine learning methods, such as CNN and SVM, can distinguish between healthy and unhealthy plants. Also gone through how transfer learning can be used, especially when data is scarce, to modify previously trained models for illness detection.

关键词： Support vector machines Plant diseases Transfer learning Imaging Data processing Data models Agriculture

来源：评论

学校读者我要写书评

暂无评论

Subordinate control System of Buck Converter

Subordinate Control System of Buck Converter

引用

2022 International Siberian Conference on control and Communications, SIBCON 2022

作者： Lyapunov, Danil Lyapushkin, Sergey Yudintsev, Anton National Research Tomsk Polytechnic University Division for Power and Electrical Engineering School of Energy and Power Engineering Tomsk Russia Research Institute of Automation and Electromechanics Tomsk State Institute of Control Systems and Radioelectronics Tomsk Russia

ISBN: (纸本)9781665476287

This paper delves into the problem of designing a buck converter, serving as the key element for testing sets, also known as load simulators. These simulators impose varying electric load onto power supplies that may be employed in harsh environments and under temperatures below 00C. This provides ground testing for such supplies over a wide range of electric loads as well as creating the proper voltage waveform on the supply terminals. For this purpose, we implement a subordinate control system containing an internal inductor current loop and main output voltage feedback of the buck converter topology. Within the present research frameworks, a methodology of the control system designing, have been outlined. The resulting voltage and current waveforms confirm the correctness of the presented methodology and applicability of the buck converter with subordinate control system as a functional component of load simulators. © 2022 IEEE.

关键词： Electric loads

来源：评论

学校读者我要写书评

暂无评论

Observation-Driven Multiple UAV Coordinated Standoff Target Tracking Based on Model Predictive control

引用

Tsinghua Science and Technology 2022年第6期27卷 948-963页

作者： Shun Sun Yu Liu Shaojun Guo Gang Li Xiaohu Yuan Department of Control Science and Technology Naval Aviation UniversityYantai 264001China Department of Electronic Engineering Tsinghua UniversityBeijing 100084China National Institute of Defense Technology Innovation Academy of Military Sciences PLABeijing 100091China Department of Automation Tsinghua UniversityBeijing 100084China

An observation-driven method for coordinated standoff target tracking based on Model Predictive control(MPC)is proposed to improve observation of multiple Unmanned Aerial Vehicles(UAVs)while approaching or loitering over a *** acquiring a fusion estimate of the target state,each UAV locally measures the observation capability of the entire UAV system with the Fisher Information Matrix(FIM)determinant in the decentralized *** facilitate observation optimization,only the FIM determinant is adopted to derive the performance function and control constraints for coordinated standoff ***,a modified iterative scheme is introduced to improve the iterative efficiency,and a consistent circular direction control is established to maintain long-term observation performance when the UAV approaches its *** experiments with simulated and real trajectories validate that the proposed method can improve observation of the UAV system for target tracking and adaptively optimize UAV trajectories according to sensor performance and UAV-target geometry.

关键词： coordinated tracking standoff tracking observation-driven Model Predictive control(MPC) multiple UAVs Fisher Information Matrix(FIM)

来源：评论

学校读者我要写书评

暂无评论

Analysis of Conjoint Response in Post-stroke Patients Using the Attention-coupled Weighting Method

引用

Machine Intelligence Research 2025年第2期22卷 352-367页

作者： Jingyao Chen Chen Wang Ningcun Xu Zeng-Guang Hou Liang Peng Pu Zhang Faculty of Innovation Engineering CASIA-MUST Joint Laboratory of Intelligence Science and TechnologyMacao University of Science and TechnologyMacao 999078China State Key Laboratory of Multimodal Artificial Intelligence Systems Institute of AutomationChinese Academy of SciencesBeijing 100190China Institute of Analysis and Testing Beijing Academy of Science and TechnologyBeijing 100089China Department of Rehabilitation Evaluation China Rehabilitation Research CenterBeijing 100068China

Rehabilitation assessment plays a vital role in the recovery process of post-stroke ***,many studies have focused on the implementation of automated assessment ***,the impact of stroke on the synergistic pattern between different human joints is not well *** this study,we developed an attention-coupled weighting based quantitative analysis model to identify the pathological alteration in the conjoint response structure between stroke patients and healthy participants,thus providing more intrinsic suggestions for the post-stroke rehabilitation *** collaboration with the China Rehabilitation Research Center and the Macao University of Science and Technology,we recruited 15 post-stroke patients and 15 healthy participants to complete several actions selected from the Fugl-Meyer assessment(FMA)scale,which is a commonly used post-stroke rehabilitation assessment scale in clinical *** study proposed an attentional coupling weight(ACW)extraction *** filtering the weights in the attentional coupling network using a priori matrix,we can analyse the effect of stroke on the alteration of synergistic structures and the coordination patterns of the upper and lower ***,we used a commonly accepted synergy analysis method,the nonnegative matrix decomposition(NMF)method,for comparison and *** experimental results demonstrated the effectiveness of our method in quantifying the synergistic structure pattern alterations in post-stroke patients,which provides a new targeted option for the rehabilitation process.

关键词： Intelligent assessment conjoint response attentional coupling network spatio-temporal weight extraction.

来源：评论

学校读者我要写书评

暂无评论

Output Formation Tracking control for Heterogeneous Multi-Agent systems with Application to Unmanned Aerial and Ground Vehicles 41

Output Formation Tracking Control for Heterogeneous Multi-Ag...

引用

第41届中国控制会议

作者： Peixuan Shu Yu Hu Yongzhao Hua Xiwang Dong Zhang Ren School of Automation Science and Electrical Engineering Science and Technology on Aircraft Control LaboratoryBeihang University Shenyuan Honors College Beihang University Beijing Institute of Astronatical Systems Engineering Institute of Artificial Intelligence Beihang University

ISBN: (数字)9789887581536

ISBN: (纸本)9781665482561

Distributed output formation tracking control problem for heterogeneous multi-agent systems(HMASs) was studied in this *** HMASs include multi-rotor unmanned aerial vehicles(UAVs) and unmanned ground vehicles(UGVs) with nonholonomic constraints.A formation tracking protocol was proposed for the follower UAVs and UGVs to track the virtual leader's output trajectory while keeping a predefined time-varying *** this protocol,a distributed observer was first designed for each follower to estimate the states of the ***,a local formation controller based on feedback linearization was designed for UAVs,while a nonlinear controller was presented for UGVs to tackle the nonholonomic *** effectiveness of this protocol was proved by the Lyapunov stability ***,a cooperative searching experiment with two quadrotors and a wheeled vehicle was performed under the ultra wide band(UWB) positioning system,and the experiment results matched the simulation well.

关键词： Formation tracking control heterogeneous multi-agent systems UAV UGV

来源：评论

学校读者我要写书评

暂无评论

STGSA:A Novel Spatial-Temporal Graph Synchronous Aggregation Model for Traffic Prediction

引用

IEEE/CAA Journal of Automatica Sinica 2023年第1期10卷 226-238页

作者： Zebing Wei Hongxia Zhao Zhishuai Li Xiaojie Bu Yuanyuan Chen Xiqiao Zhang Yisheng Lv Fei-Yue Wang the State Key Laboratory for Management and Control of Complex Systems Institute of AutomationChinese Academy of SciencesBeijing 100190China the School of Artificial Intelligence University of Chinese Academy of SciencesBeijing 100049China the Shandong Key Laboratory of Smart Transportation(Preparation) Shandong Jiao Tong UniversityShanghai 200240China the College of Science China University of PetroleumQingdao 266580China the Department of Transportation Engineering School of Transportation Science and TechnologyHarbin Institute of TechnologyHarbin 150090China IEEE

The success of intelligent transportation systems relies heavily on accurate traffic prediction,in which how to model the underlying spatial-temporal information from traffic data has come under the *** existing frameworks typically utilize separate modules for spatial and temporal correlations ***,this stepwise pattern may limit the effectiveness and efficiency in spatial-temporal feature extraction and cause the overlook of important information in some ***,it is lacking sufficient guidance from prior information while modeling based on a given spatial adjacency graph(e.g.,deriving from the geodesic distance or approximate connectivity),and may not reflect the actual interaction between *** overcome those limitations,our paper proposes a spatial-temporal graph synchronous aggregation(STGSA)model to extract the localized and long-term spatial-temporal dependencies ***,a tailored graph aggregation method in the vertex domain is designed to extract spatial and temporal features in one graph convolution *** each STGSA block,we devise a directed temporal correlation graph to represent the localized and long-term dependencies between nodes,and the potential temporal dependence is further fine-tuned by an adaptive weighting ***,we construct an elaborated spatial adjacency matrix to represent the road sensor graph by considering both physical distance and node similarity in a datadriven ***,inspired by the multi-head attention mechanism which can jointly emphasize information from different r epresentation subspaces,we construct a multi-stream module based on the STGSA blocks to capture global *** projects the embedding input repeatedly with multiple different ***,the predicted values are generated by stacking several multi-stream *** experiments are constructed on six real-world datasets,and numerical results show that the proposed STGSA

关键词： Deep learning graph neural network(GNN) multistream spatial-temporal feature extraction temporal graph traffic prediction

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：