检索结果-内蒙古大学图书馆

Observer-based quantised control of networked systems with round-robin protocol and transmission delay

Journal of Control and Decision 2025年第1期12卷 24-33页

作者： Ge Guo Xuefei Yan Jian Kang State Key Laboratory of Synthetical Automation for Process Industries Northeastern UniversityShenyangPeople's Republic of China School of Control Engineering Northeastern University at QinhuangdaoQinhuangdaoPeople's Republic of China College of Information Science and Engineering Northeastern UniversityShenyangPeople's Republic of China

This paper addresses the ultimate boundedness control problem for a class of networked nonlinear systems with the round-robin(RR)protocol and uniform *** communication between sensor nodes and the controller is implemented via a constrained communication *** quantised output of the system is transmitted to the remote controller through a communication channel subject to a transmission *** the purpose of alleviating possible data collision,the well-known RR communication protocol is deployed to schedule the data *** the other hand,the uniform quantisation effects of the network are characterised by a round function(*** nearest integer function).The purpose of the addressed problem is to design an observer-based controller for the networked nonlinear systems such that,in the presence of RR protocol and uniform quantisation effects,the closed-loop system is ultimately *** controller is designed based on mean square stability analysis and Lyapunov-like method.A set of sufficient conditions for the ultimate boundedness of the closed-loop system are established and,on the basis of which,the desired controller gains are obtained by solving a set of linear matrix *** effectiveness of the proposed method is verified by numerical examples.

关键词： Networked control systems(NCSs) round-robin(RR)protocol transmission delay uniform quantisation ultimate boundedness control

来源：评论

学校读者我要写书评

暂无评论

Fixed-Time Secure Control for Vehicular Platoons under Deception Attacks on Both Sensor and Actuator Via Adaptive Fixed-Time Disturbance Observer

引用

IEEE Internet of Things Journal 2025年第11期12卷 15828-15839页

作者： Gao, Zhenyu Li, Xiang Wei, Zhongyang Guo, Ge Wen, Shixi Zhao, Yuan Mumtaz, Shahid Northeastern University College of Information Science and Engineering Shenyang110819 China Northeastern University State Key Laboratory of Synthetical Automation for Process Industries Shenyang110819 China Dalian University College of Information Engineering Dalian116622 China Nottingham Trent University Department of Engineering NottinghamNG14BU United Kingdom

Sensor and actuator deception attacks often manipulate states and control commands, which lead to system performance deterioration or even instability. This paper focus on the platoon control problem for a group of connected and automated vehicles (CAVs) subject to both deception attacks and external disturbances. Firstly, modeling both attacks and external disturbances as lumped disturbances, and a novel adaptive fixed-time disturbance observer (AFxTDO) without requiring prior knowledge of the disturbance boundary is further constructed to estimate the lumped disturbances within given time with zero estimation errors. Then, a new global fixed-time stability result with faster convergence rate is developed, together with the given AFxTDO, a variable exponent fixed-time sliding mode control (VFxTSMC) scheme is established, such that the platoon tracking errors can converge to a predetermined region within the given time while avoiding the singularity phenomenon, improving the convergence speed and reducing the number of controller parameters. Meanwhile, individual vehicle stability and string stability also can be guaranteed within fixed-time by the suggested control scheme. Finally, the simulation results reveal the effectiveness and superiority of the proposed algorithm. © 2014 IEEE.

关键词： Convergence Disturbance observers Actuators Stability criteria Sliding mode control Orbits Internet of Things Estimation error Real-time systems Global Positioning System

来源：评论

学校读者我要写书评

暂无评论

Fuzzy-Model-Based Robust Fault Estimation Observer Design for Nonlinear Discrete-Time Systems Using Dissipativity Theory

引用

IEEE Transactions on Systems, Man, and Cybernetics: Systems 2025年第5期55卷 3076-3085页

作者： Mu, Yunfei Zhang, Huaguang Li, Weihua Zhang, Kun Northeastern University College of Information Science and Engineering Liaoning Shenyang110004 China Northeastern University State Key Laboratory of Synthetical Automation for Process Industries College of Information Science and Engineering Liaoning Shenyang110004 China Space Engineering University Beijing100191 China Beihang University School of Astronautics Beijing100191 China

This article investigates the robust fault estimation (FE) scheme for a class of discrete-time nonlinear dynamics subject to simultaneous bounded disturbances, sensor and actuator/process faults through the T–S fuzzy method. By constructing an augmented system that contains sensor faults as part of its state, a dissipativity-based FE observer is proposed to achieve sensor and actuator/process faults reconstruction. Combine with the fuzzy Lyapunov function method and dissipativity theory, some brand-new conditions with slack scalars and matrices are attained to ensure that observation error systems are strictly (R, W, S) -δ- dissipative. Besides, to improve the transient FE performance, regional pole placement problem is also considered in FE observer design. It is worth mentioning that different from some existing results which assume that actuator faults occur in a constant form, the method given in this article is suitable for more types of faults such as time-varying ones. By two simulation experiments, the validity and practicability of the proposed FE observer are fully illustrated. © 2013 IEEE.

关键词： Lyapunov functions

来源：评论

学校读者我要写书评

暂无评论

Kernel-free quadratic least squares twin support vector clustering

引用

Neural Computing and Applications 2025年 1-20页

作者： Gao, Zheming Fu, Haojie Huang, Min Luo, Jian State Key Laboratory of Synthetical Automation for Process Industries College of Information Science and Engineering Northeastern University No. 11 Wenhua Road Heping District Liaoning Shenyang110819 China International Business School Hainan University Hainan Haikou570228 China

As a support vector-based clustering approach, the twin support vector clustering (TWSVC) model has achieved great success. Equipped with a kernel function, the kernel-based TWSVC model is able to handle nonlinear clustering tasks. However, it takes much extra effort selecting a proper kernel function and tuning the hyper-parameters. In this research, a novel kernel-free nonlinear quadratic least squares TWSVC model is proposed. Without utilizing any kernel functions, it captures the clusters by directly producing quadratic surfaces. By employing the idea of TWSVC, each cluster is characterized individually, which brings a better generality of the model. In addition, the proposed model adopts the least squares constraints so that the clustering results can be efficiently obtained by solving a series of linear systems of equations. Computational experiments on artificial and public benchmark datasets are conducted to validate the clustering performance of the proposed model. Moreover, the proposed model is applied to the steel clustering. © The Author(s), under exclusive licence to Springer-Verlag London Ltd., part of Springer Nature 2025.

关键词： Unsupervised learning

来源：评论

学校读者我要写书评

暂无评论

Backstepping Control With Tunable Transformation Parameters for a Coupled PDE Rijke Tube With Boundary Input Delay

引用

IEEE Transactions on automation Science and engineering 2025年 22卷 12583-12595页

作者： Ma, Dan Xing, Yuqian Liu, Yanyan Lin, Hongjun Northeastern University State Key Laboratory of Synthetical Automation for Process Industries College of Information Science and Engineering Shenyang110819 China Research Institute of Aero-Engine Beihang University Beijing100191 China Shenyang Engine Research Institute AECC Shenyang110015 China

In this paper, the active control problem for thermoacoustic instability in the Rijke tube is investigated. First of all, the first-order hyperbolic partial differential equations (PDEs) for one-dimensional compressible gas dynamics, combined with the Heckl heat release model, are proposed to describe the unstable thermoacoustic system in the Rijke tube. For the dynamic system, the decoupling of the nonlinear heat release with delayed velocity fluctuation and the acoustic field, along with the boundary input delay, is addressed. Secondly, the transport PDE is used to represent the boundary input delay. This transforms the unstable thermoacoustic system into a cascaded form of the transport equation and linear hyperbolic PDEs, resulting in a system of 5\times 5 first-order linear hyperbolic PDEs. Then, due to the limitations of the existing backstepping control method for this system, a novel backstepping control approach with tunable parameters is proposed to stabilize the system. Next, a boundary feedback controller with optimized transformation parameters is designed by solving a programming problem to exponentially stabilize the unstable thermoacoustic system with boundary input delay in the Rijke tube. Finally, the effectiveness of the proposed approach is verified through a numerical simulation using a Rijke tube. © 2004-2012 IEEE.

关键词： Backstepping

来源：评论

学校读者我要写书评

暂无评论

Finite-Time Consensus of Second-Order Multiagent Systems With Input Saturation via Hybrid Sliding-Mode Control

引用

IEEE Transactions on automation Science and engineering 2025年 22卷 14623-14632页

作者： Jiang, Xiaowei Jiao, Ranran Li, Bo Zhang, Xianhe Yan, Huaicheng China University of Geosciences School of Automation Wuhan430079 China Ministry of Education Hubei Key Laboratory of Advanced Control and Intelligent Automation of Complex Systems Engineering Research Center of Intelligent Geodetection Technology Wuhan430074 China Ministry of Education Key Laboratory of System Control and Information Processing Shanghai200240 China Anhui University of Finance and Economics School of Finance Bengbu233030 China Hubei Normal University School of Electrical Engineering and Automation Huangshi435002 China Ministry of Education East China University of Science and Technology Key Laboratory of Smart Manufacturing in Energy Chemical Process Shanghai200237 China

This paper addresses the finite-time consensus (FTC) issue for second-order multi-agent systems (MASs) with nonlinear disturbances. To tackle the challenges posed by increasingly complex communication environments, an innovative integral sliding-mode surface is designed using event-triggered control. Furthermore, the study explores communication constraints between the leader and followers, employing impulsive control to facilitate communication only at specific intervals. A novel hybrid integral sliding-mode control protocol is advanced for the second-order MASs, which effectively eliminates the "Zeno phenomenon" and notably reduces both communication frequency and energy consumption, thereby enhancing overall communication efficiency. Ultimately, the efficacy of the put forward protocol is verified through simulation examples including comparison experiment. © 2004-2012 IEEE.

关键词： Protocols Sliding mode control Event detection Multi-agent systems Costs Training Topology Switches Sufficient conditions Stability analysis

来源：评论

学校读者我要写书评

暂无评论

Robustness of gross primary production estimation from long-term reconstructed solar-induced chlorophyll fluorescence varies with greenness on a global scale

引用

Journal of Applied Remote Sensing 2025年第1期19卷

作者： Fu, Lijiang Xia, Qian Tang, Hao Chen, Junqing Tan, Jinglu Guo, Ya Jiangnan University Ministry of Education Key Laboratory of Advanced Process Control for Light Industry Wuxi China Changshu Institute of Technology School of Electrical Engineering and Automation Changshu China University of Missouri Department of Chemical and Biomedical Engineering ColumbiaMO United States

Long-term reconstructed solar-induced chlorophyll fluorescence (SIF) derived from raw gridded SIF has been used for the estimation of gross primary production (GPP), but the robustness of the spatial relationship may vary from location to location. We examined the often-used linear relationship between GPP and SIF in terms of R2 values for varied locations globally using three GPP datasets (FLUXCOM, VPM, PML) and three long-term reconstructed monthly SIF datasets (CSIF, SIF005, and RTSIF). The results show that the R2 value is a concave function of vegetation greenness level (NDVI) on an annual or seasonal basis. The average R2 is over 0.8 in areas where the annual average NDVI is in the range of 0.4 to 0.6, whereas the R2 is much lower where the annual average NDVI is less than 0.2 or greater than 0.8. Prediction of GPP or SIF by three methods from five major environmental variables revealed greater uncertainties in GPP and/or SIF at low or high greenness levels as an apparent cause of the low R2. The results offer useful insights into how global GPP may be effectively estimated from multi-satellite measured SIF. © 2025 Society of Photo-Optical Instrumentation Engineers (SPIE).

关键词： Optical correlation

来源：评论

学校读者我要写书评

暂无评论

Historical Attack-Intensity-Based Event-Triggered Platoon Control of Connected Vehicles Under Actuator Failures and DoS Attacks

引用

IEEE Transactions on Vehicular Technology 2025年第5期74卷 8052-8062页

作者： Lin, Huichao Dong, Jiuxiang Park, Ju H. Liaoning Province Key Laboratory of Safe Operation Technique for Autonomous Unmanned Systems College of Information Science and Engineering Shenyang110819 China Northeastern University State Key Laboratory of Synthetical Automation of Process Industries Shenyang110819 China Yeungnam University Department of Electrical Engineering Kyongsan38541 Korea Republic of

This paper considers the event-triggered (ET) platoon control of connected vehicles in the presence of actuator failures and DoS attacks. First, a historical attack-intensity-based ET mechanism is proposed to optimize communication resources. Compared with the existing event trigger mechanism, this mechanism utilizes not only the state error information but also historical attack intensity data to dynamically adjust the trigger threshold, which further conserves communication resources and enhances design flexibility in the case of DoS attacks. Next, a security platoon control scheme is designed to resist actuator faults and DoS attacks, and a delay switched system model is introduced to describe the vehicle platoon tracking error system. Then, a novel Lyapunov functional is developed and combined with switching techniques to establish sufficient conditions for the exponential stability of the tracking error system. Additionally, a co-design method of controller gain and event trigger parameters is proposed. Finally, simulation examples validate the superiority of the proposed historical attack-intensity-based ET platooning control scheme. © 1967-2012 IEEE.

关键词： Lyapunov functions

来源：评论

学校读者我要写书评

暂无评论

Optimized GA-Based PID Control Design for Stick-Slip Suppression in Drill String of Rotary Drilling System

Optimized GA-Based PID Control Design for Stick-Slip Suppres...

引用

International Conference on Artificial Intelligence in Renewable Energetic Systems, IC-AIRES 2024

作者： Mawloud, Tellaa Abderrezak, Aibeche Zinelabidine, Doghmane Mohamed Madjid, Kidouche Automation and Electrification of Process Applied Automation Laboratory Faculty of Hydrocarbons Chemistry University M’Hamed Bougara Boumerdes35000 Algeria Institute of Electrical and Electronics Engineering University M’hamed Bougara Boumerdes Algeria Bob L. Herd Department of Petroleum Engineering Texas Tech University LubbockTX79401 United States

ISBN: (纸本)9783031803000

Stick-slip phenomena in the oil and gas drilling sector cause drillstring vibrations that provide major issues. These vibrations result in reduced drilling efficiency, equipment malfunctions, and possible dangers. This work introduces a thorough method for modeling and regulating stick-slip behavior. It utilizes a mechanical model with three degrees of freedom (3-DOF) that incorporates the influence of dry friction. The model combines both axial and torsional degrees of freedom to precisely reflect the intricate dynamics of the drillstring. Additionally, a control technique is suggested to alleviate stick-slip vibrations. This strategy involves using a hybrid Proportional-Integral-Derivative (PID) controller that has been tuned using Genetic Algorithms (GA). The PID-GA controller is specifically engineered to manage the rotating speed, mitigate stick-slip oscillations, and improve drilling stability. The efficacy of the suggested 3-DOF model and PID-GA control method in reducing stick-slip vibrations during drilling is proven by numerical simulations conducted under different drilling situations. The findings demonstrate notable advancements in drilling performance, such as decreased vibrations caused by friction, improved efficiency in drilling, and extended lifespan of the drillstring. This research significantly helps to the progress of drilling operations by offering a strong framework for modeling and managing stick-slip behavior. As a result, it improves drilling performance and guarantees operational safety in the oil and gas industry. © The Author(s), under exclusive license to Springer Nature Switzerland AG 2025.

关键词： Gas industry

来源：评论

学校读者我要写书评

暂无评论

Optimal Control Design for Stick-Slip Vibrations Mitigation in Rotary Drilling Systems

Optimal Control Design for Stick-Slip Vibrations Mitigation ...

引用

International Conference on Artificial Intelligence in Renewable Energetic Systems, IC-AIRES 2024

作者： Tellaa, Mawloud Aibeche, Abderrezak Doghmane, Mohamed Zinelabidine Kidouche, Madjid Automation and Electrification of Process Applied Automation Laboratory Faculty of Hydrocarbons and Chemistry University M’Hamed Bougara Boumerdes35000 Algeria Institute of Electrical and Electronics Engineering University M’hamed Bougara Boumerdes Algeria Bob L. Herd Department of Petroleum Engineering Texas Tech University LubbockTX79401 United States

ISBN: (纸本)9783031803000

Various forms of vibrations can have a negative impact on the drilling process in rotary drilling equipment. The presence of vibrations can result in equipment damage, reduced borehole quality, decreased drilling efficiency, and increased non-productive time. Currently, the sole existing method to control these vibrations is by manually modifying drilling parameters, which is not a reliable technique and might lead to unfavourable economic consequences. Scientists have devised automated control systems to address these irregularities;however the effectiveness of the controllers is still being refined. Lately, the utilization of a PID controller based on particle swarm optimization has demonstrated noteworthy achievements. Nevertheless, the stick-slip vibration mitigation in rotary drilling equipment has not been subjected to testing. This research seeks to investigate and suggest the utilization of a PID controller, fine-tuned using the particle swarm optimization technique, to enhance the effectiveness of controllers developed for the purpose of reducing vibrations in rotary drilling systems. © The Author(s), under exclusive license to Springer Nature Switzerland AG 2025.

关键词： Stick-slip

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：